How long is the flight from Atlanta to Region of Ontario?

For as low as C$ 734, United Airlines can have you in Region of Ontario from Atlanta in 7h 55m. There are 1191 km between Atlanta and Region of Ontario.

What are the cheapest airlines to fly from Atlanta to Region of Ontario one-way?

The cheapest airlines for a one-way flight from Atlanta to Region of Ontario are Air Canada (C$ 190), WestJet (C$ 222), and Delta (C$ 281).

In terms of precipitation, rainfall in Region of Ontario ranges from 51.0 - 83.0 mm per month. June is typically the wettest month, when rainfall can reach 83.0 mm. February is typically the driest time to visit Region of Ontario when rainfall is around 51.0 mm.

If weather is an important factor for your trip to Region of Ontario, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 21.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -6.0 C).

What are the most popular routes from Atlanta to Region of Ontario?

The most popular flight routes from Atlanta to Region of Ontario are Atlanta Hartsfield-Jackson - Toronto Pearson Intl, Atlanta Hartsfield-Jackson - Montreal Pierre Elliott Trudeau Intl and Atlanta Hartsfield-Jackson - Toronto Island.

What are the cheapest flights from Atlanta to Region of Ontario?

On average you can expect to pay C$ 459 for a flight from Atlanta to Region of Ontario. The cheapest flight overall is C$ 261 while the most popular route, (Atlanta Hartsfield-Jackson - Toronto Pearson Intl) is currently priced at C$ 335.

What are the most reliable airlines from Atlanta to Region of Ontario?

Consider Korean Air (90%), KLM (89%) or Delta (88%) when booking your flight. These represent the most reliable airlines when flying from Atlanta to Region of Ontario.

What are the most popular airlines that fly from Atlanta to Region of Ontario?

The most popular airlines flying from Atlanta to Region of Ontario are Delta, Air Canada and United Airlines. Something to consider prior to booking your flight.

What airport do you fly from for flights from Atlanta to Ontario?

Located just 13.2 km from the city centre, Atlanta Hartsfield-Jackson (ATL) is the airport most travellers will use when flying to Ontario from Atlanta.

Can I find deals for flights from Atlanta to Ontario that include hotel bookings?

Yes. In addition to deals on Atlanta to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Atlanta to Ontario?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Atlanta to Ontario.

Can I find deals for business class flights from Atlanta to Ontario?

Yes. Cheapflights offers flight deals from Atlanta to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

C$ 189+ Cheap Flights from Atlanta to Ontario

Cheap flight deals from Atlanta to Ontario

Enter your travel dates to find the best prices.

Cheapest

Best

Direct

Last-minute

One-way

Cheapest flights from Atlanta to Ontario
Explore the most affordable flight options available from Atlanta to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 25 October 2026.

Wed 4/119:00 p.m. -

1 stop17h 50m

Mon 9/117:35 a.m. -

1 stop25h 34m

Deal found 21/10C$ 401

Thu 12/117:31 a.m. -

1 stop7h 49m

Mon 16/117:35 a.m. -

2 stops39h 27m

Deal found 22/10C$ 403

Tue 1/128:54 a.m. -

1 stop12h 57m

Sat 5/122:25 p.m. -

1 stop7h 29m

Deal found 22/10C$ 405

Wed 4/117:31 a.m. -

1 stop7h 19m

Thu 12/116:30 a.m. -

1 stop8h 11m

Deal found 21/10C$ 408

Wed 4/119:00 p.m. -

1 stop17h 50m

Mon 16/116:30 a.m. -

1 stop26h 32m

Deal found 21/10C$ 409

Fri 6/119:00 p.m. -

1 stop17h 50m

Mon 9/117:35 a.m. -

1 stop25h 34m

Deal found 21/10C$ 410

Tue 10/119:45 a.m. -

1 stop12h 07m

Sat 14/116:30 a.m. -

1 stop12h 07m

Deal found 24/10C$ 412

Wed 18/115:19 p.m. -

1 stop5h 27m

Mon 23/119:20 a.m. -

1 stop14h 36m

Deal found 24/10C$ 413

Tue 17/119:45 a.m. -

1 stop12h 07m

Mon 23/119:20 a.m. -

1 stop14h 36m

Deal found 24/10C$ 415

Thu 12/117:31 a.m. -

1 stop7h 49m

Tue 17/119:20 a.m. -

1 stop8h 07m

Deal found 22/10C$ 419

Thu 19/117:11 a.m. -

2 stops14h 34m

Sun 22/119:00 p.m. -

1 stop12h 19m

Deal found 21/10C$ 426

Wed 9/1210:16 p.m. -

1 stop16h 16m

Wed 16/128:00 a.m. -

1 stop25h 11m

Deal found 25/10C$ 427

Best flights from Atlanta to Ontario
Discover carefully curated flight deals from Atlanta to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 25 October 2026.

Sat 6/27:15 a.m. -

2 stops12h 54m

Wed 10/28:00 a.m. -

1 stop10h 08m

Deal found 20/10C$ 510

Thu 17/1210:02 a.m. -

1 stop7h 55m

Mon 21/122:15 p.m. -

1 stop10h 15m

Deal found 23/10C$ 734

Fri 20/119:13 a.m. -

1 stop7h 20m

Mon 23/1112:42 p.m. -

1 stop9h 52m

Deal found 20/10C$ 1,034

Tue 9/25:35 a.m. -

2 stops16h 40m

Sat 13/23:10 p.m. -

1 stop9h 45m

Deal found 25/10C$ 552

Wed 25/117:40 p.m. -

Nonstop2h 17m

Sun 29/116:15 a.m. -

Nonstop2h 34m

Deal found 22/10C$ 1,262

Sat 21/118:30 a.m. -

1 stop14h 27m

Sat 5/126:15 a.m. -

Nonstop2h 38m

Deal found 20/10C$ 1,279

Sat 7/118:25 a.m. -

1 stop8h 57m

Sat 14/1112:05 p.m. -

2 stops11h 08m

Deal found 24/10C$ 620

Thu 5/115:30 a.m. -

1 stop12h 27m

Mon 9/112:45 p.m. -

1 stop19h 33m

Deal found 22/10C$ 794

Tue 24/1112:55 p.m. -

2 stops9h 41m

Tue 1/125:00 a.m. -

1 stop6h 46m

Deal found 25/10C$ 1,643

Sat 19/125:30 a.m. -

1 stop18h 22m

Mon 21/1210:00 a.m. -

1 stop14h 30m

Deal found 22/10C$ 803

Wed 23/127:29 p.m. -

1 stop13h 03m

Thu 31/128:35 a.m. -

2 stops15h 55m

Deal found 25/10C$ 831

Wed 25/1110:29 p.m. -

2 stops19h 23m

Sun 29/115:45 p.m. -

2 stops20h 20m

Deal found 20/10C$ 838

Thu 24/125:30 a.m. -

1 stop18h 22m

Thu 31/128:35 a.m. -

2 stops15h 55m

Deal found 25/10C$ 831

Tue 24/118:09 a.m. -

3 stops14h 07m

Tue 1/126:20 a.m. -

3 stops29h 14m

Deal found 25/10C$ 889

Thu 12/115:30 a.m. -

1 stop9h 37m

Mon 23/119:45 a.m. -

2 stops12h 14m

Deal found 22/10C$ 853

Sat 21/1112:05 p.m. -

3 stops23h 27m

Sun 22/114:10 p.m. -

2 stops14h 35m

Deal found 24/10C$ 958

Wed 11/117:34 p.m. -

1 stop19h 33m

Mon 23/1110:30 a.m. -

2 stops11h 29m

Deal found 22/10C$ 923

Sat 5/128:25 a.m. -

1 stop14h 11m

Sat 12/125:00 a.m. -

1 stop16h 21m

Deal found 21/10C$ 1,668

Sat 21/118:09 a.m. -

1 stop6h 23m

Sat 28/118:00 a.m. -

1 stop24h 40m

Deal found 24/10C$ 1,038

Sat 26/127:29 p.m. -

1 stop4h 23m

Wed 30/129:00 p.m. -

1 stop13h 17m

Deal found 25/10C$ 985

Sat 5/1210:16 p.m. -

2 stops14h 35m

Sat 12/126:20 a.m. -

2 stops15h 34m

Deal found 21/10C$ 1,064

Thu 12/115:30 a.m. -

1 stop9h 37m

Fri 27/113:10 p.m. -

2 stops9h 25m

Deal found 22/10C$ 1,014

Tue 17/117:00 a.m. -

2 stops8h 07m

Mon 23/119:45 a.m. -

2 stops12h 14m

Deal found 23/10C$ 1,031

Fri 6/119:40 a.m. -

1 stop12h 16m

Mon 16/113:10 p.m. -

1 stop17h 23m

Deal found 21/10C$ 1,067

Wed 30/1210:02 a.m. -

1 stop8h 59m

Sun 3/13:35 p.m. -

1 stop5h 42m

Deal found 25/10C$ 1,178

Wed 25/116:00 a.m. -

1 stop9h 56m

Sun 29/119:15 a.m. -

Nonstop2h 31m

Deal found 21/10C$ 1,249

Mon 7/128:25 a.m. -

1 stop7h 41m

Mon 14/125:15 p.m. -

2 stops15h 18m

Deal found 23/10C$ 1,662

Find flight deals from Atlanta to Ontario

Round-trip from	C$ 401
One-way from	C$ 189
Popular in	January
Cheapest in	October
Average price	C$ 431
Good round-trip deal	C$ 369 or less
Good one-way deal	C$ 358 or less

4/11-9/11
2 total stops
43h 24m total
Atlanta to Ontario

Search Deals

7/12-31/12
1 total stop
6h 06m total
Atlanta to Ontario

Search Deals

Highest demand for flights based on searches. 14% potential increase in price (C$ 195 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (C$ 39 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in October 2026

Search Deals

Price to beat on a round-trip flight from Atlanta Hartsfield-Jackson to Ontario.

Search Deals

Price to beat on a one-way flight from Atlanta Hartsfield-Jackson to Ontario.

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

AtlantaOttawa

ATL Atlanta Hartsfield-Jackson - YOW Ottawa

ATLYOW

Atlanta Hartsfield-Jackson

Mon 7/12

8:26 a.m.-2:32 p.m.

1 stop6h 06m

Ottawa

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 189

AtlantaOttawa

ATL Atlanta Hartsfield-Jackson - YOW Ottawa

ATLYOW

Atlanta Hartsfield-Jackson

Thu 19/11

8:10 a.m.-2:32 p.m.

1 stop6h 22m

Ottawa

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 206

AtlantaToronto

ATL Atlanta Hartsfield-Jackson - YYZ Toronto Pearson Intl

ATLYYZ

Atlanta Hartsfield-Jackson

Tue 24/11

6:15 a.m.-5:10 p.m.

1 stop10h 55m

Toronto Pearson Intl

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 238

AtlantaOttawa

ATL Atlanta Hartsfield-Jackson - YOW Ottawa

ATLYOW

Atlanta Hartsfield-Jackson

Mon 16/11

9:52 p.m.-6:12 p.m.

2 stops20h 20m

Ottawa

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 266

AtlantaToronto

ATL Atlanta Hartsfield-Jackson - YYZ Toronto Pearson Intl

ATLYYZ

Atlanta Hartsfield-Jackson

Fri 30/10

3:48 p.m.-7:20 p.m.

1 stop27h 32m

Toronto Pearson Intl

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 312

AtlantaToronto

ATL Atlanta Hartsfield-Jackson - YYZ Toronto Pearson Intl

ATLYYZ

Atlanta Hartsfield-Jackson

Wed 25/11

5:30 a.m.-7:01 p.m.

1 stop13h 31m

Toronto Pearson Intl

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 368

AtlantaToronto

ATL Atlanta Hartsfield-Jackson - YYZ Toronto Pearson Intl

ATLYYZ

Atlanta Hartsfield-Jackson

Sun 29/11

8:15 a.m.-11:40 p.m.

2 stops15h 25m

Toronto Pearson Intl

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 374

AtlantaToronto

ATL Atlanta Hartsfield-Jackson - YYZ Toronto Pearson Intl

ATLYYZ

Atlanta Hartsfield-Jackson

Wed 9/12

8:26 a.m.-10:40 p.m.

3 stops14h 14m

Toronto Pearson Intl

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 422

AtlantaToronto

ATL Atlanta Hartsfield-Jackson - YYZ Toronto Pearson Intl

ATLYYZ

Atlanta Hartsfield-Jackson

Sat 31/10

6:30 a.m.-7:05 p.m.

2 stops12h 35m

Toronto Pearson Intl

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 433

AtlantaOttawa

ATL Atlanta Hartsfield-Jackson - YOW Ottawa

ATLYOW

Atlanta Hartsfield-Jackson

Sat 6/2

7:15 a.m.-8:09 p.m.

2 stops12h 54m

Ottawa

Wed 10/2

8:00 a.m.-6:08 p.m.

1 stop10h 08m

C$ 510

Flights are sorted by cheapest round-trip flights first.

Deals found on 22/10

Showing 1-10 of 42 resultsSorted by cheapest first

...

Best time to book a flight from Atlanta to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Atlanta with our price prediction graph.

ATL-YOW

ATL-YYZ

ATL-YQT

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Atlanta to Ontario

ATL-CAON

ATL-YOW

ATL-YYZ

ATL-YQT

What is the cheapest month to book a flight from Atlanta to Region of Ontario?

Currently, November is the cheapest month in which you can book a flight from Atlanta to Region of Ontario (average of C$ 756). Flying from Atlanta to Region of Ontario in July is currently the most expensive (average of C$ 937). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ATL to ON?

When flying from Atlanta to Region of Ontario, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 37% versus a flight at noon.

Weekly flight availability from Atlanta to Region of Ontario

The most flights from ATL to CAON are scheduled on a Friday (21 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (13 on average).

How much does it cost to fly round-trip from Atlanta to Region of Ontario?

Airfare is below average for this route at the moment.

Atlanta to Region of Ontario flights typically cost between C$ 497 and C$ 1,114 in November.
The cheapest round-trip price found within the last 5 days was C$ 401 on Multiple Airlines (4 Nov-9 Nov).

How far ahead should I book a flight from Atlanta to Region of Ontario?

Booking 86 days in advance of your planned departure date is, on average, the best time to get cheap flights from Atlanta to Region of Ontario. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest day to fly from Atlanta to Region of Ontario?

Travelers seeking maximum savings on their Atlanta to Region of Ontario flight should consider departing on Sunday mornings when fares are most often at their lowest. Thursday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Ontario

Read reviews from past customers who have flown Delta,United Airlines, andWestJet from Atlanta to Ontario. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Delta

7.8

Good

8,678 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Joel,May 2026

ATL - JAX

The flight was delivered 50 minutes and taxing took what felt like 20 minutes to takeoff.

Delta

7.8

Good

8,678 reviews

Delta

7.8

Good

8,678 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Joel,May 2026

ATL - JAX

The flight was delivered 50 minutes and taxing took what felt like 20 minutes to takeoff.

United Airlines

7.3

Good

10,435 reviews

Delta

7.8

Good

8,678 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Joel,May 2026

ATL - JAX

The flight was delivered 50 minutes and taxing took what felt like 20 minutes to takeoff.

WestJet

7.2

Good

3,445 reviews

Delta

7.8

Good

8,678 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Joel,May 2026

ATL - JAX

The flight was delivered 50 minutes and taxing took what felt like 20 minutes to takeoff.

Air Canada

7.1

Good

11,810 reviews

Delta

7.8

Good

8,678 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Joel,May 2026

ATL - JAX

The flight was delivered 50 minutes and taxing took what felt like 20 minutes to takeoff.

Related info for your journey

What airport do you fly from for flights from Atlanta to Ontario?
Located just 13.2 km from the city centre, Atlanta Hartsfield-Jackson (ATL) is the airport most travellers will use when flying to Ontario from Atlanta.
How long is the flight from Atlanta to Region of Ontario?
For as low as C$ 734, United Airlines can have you in Region of Ontario from Atlanta in 7h 55m. There are 1191 km between Atlanta and Region of Ontario.
What are the cheapest airlines to fly from Atlanta to Region of Ontario one-way?
The cheapest airlines for a one-way flight from Atlanta to Region of Ontario are Air Canada (C$ 190), WestJet (C$ 222), and Delta (C$ 281).
What are the most popular routes from Atlanta to Region of Ontario?
The most popular flight routes from Atlanta to Region of Ontario are Atlanta Hartsfield-Jackson - Toronto Pearson Intl, Atlanta Hartsfield-Jackson - Montreal Pierre Elliott Trudeau Intl and Atlanta Hartsfield-Jackson - Toronto Island.
What are the most reliable airlines from Atlanta to Region of Ontario?
Consider Korean Air (90%), KLM (89%) or Delta (88%) when booking your flight. These represent the most reliable airlines when flying from Atlanta to Region of Ontario.
What are the cheapest flights from Atlanta to Region of Ontario?
On average you can expect to pay C$ 459 for a flight from Atlanta to Region of Ontario. The cheapest flight overall is C$ 261 while the most popular route, (Atlanta Hartsfield-Jackson - Toronto Pearson Intl) is currently priced at C$ 335.
Can I find deals for flights from Atlanta to Ontario that include hotel bookings?
Yes. In addition to deals on Atlanta to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Atlanta to Ontario?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Atlanta to Ontario.
Can I find deals for business class flights from Atlanta to Ontario?
Yes. Cheapflights offers flight deals from Atlanta to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Atlanta to Region of Ontario?
Currently, November is the cheapest month in which you can book a flight from Atlanta to Region of Ontario (average of C$ 756). Flying from Atlanta to Region of Ontario in July is currently the most expensive (average of C$ 937). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Atlanta to Calgary flights

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Jacksonville to Vancouver Intl flights

Atlanta to Québec City flights

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Jacksonville to Toronto Island flights

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Asheville to Vancouver Intl flights

Jacksonville to Québec City flights

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Savannah to Pierre Elliott Trudeau Intl flights

Jacksonville to Calgary flights

Jacksonville to Pierre Elliott Trudeau Intl flights

Asheville to Calgary flights

Savannah to Vancouver Intl flights

Atlanta to Saskatoon flights

Chattanooga to Vancouver Intl flights

Asheville to Pierre Elliott Trudeau Intl flights

Tallahassee to Pierre Elliott Trudeau Intl flights

Atlanta to Kelowna flights

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Atlanta to St. John's flights

Tallahassee to Calgary flights

Jacksonville to Halifax flights

Atlanta to Whitehorse flights

Savannah to Pearson Intl flights

Jacksonville to Winnipeg flights

Chattanooga to Pierre Elliott Trudeau Intl flights

Jacksonville to Edmonton flights

Savannah to Halifax flights

Chattanooga to Québec City flights

Savannah to Calgary flights

Chattanooga to Edmonton flights

Atlanta to Victoria flights

Atlanta to Charlottetown flights

Augusta to Pearson Intl flights

Tallahassee to Pearson Intl flights

Augusta to Pierre Elliott Trudeau Intl flights

Top 4 airlines flying from Atlanta to Ontario

Airline	Cheapest	Average	Flexibility	On-time
WestJet	CheapestC$ 293	AverageC$ 989	FlexibilityNo cancel fee	On-time60%	Search WestJet flights
Delta	CheapestC$ 336	AverageC$ 427	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
Air Canada	CheapestC$ 359	AverageC$ 943	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
United Airlines	CheapestC$ 1,126	AverageC$ 1,340	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights

Fly with Cheapflights

How does Cheapflights help users find flights from Atlanta to Ontario?

Cheapflights helps you search for flights from Atlanta to Ontario via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Atlanta to Ontario?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Atlanta to Ontario.

Can Cheapflights find flights from Atlanta to Ontario with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Atlanta to Ontario flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Atlanta to Ontario become cheaper?

Yes, Cheapflights offers price alerts on Atlanta to Ontario flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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Cheap flights from Atlanta to Ontario from C$ 189

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/12. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Atlanta to Ontario

Cheapest flights from Atlanta to OntarioExplore the most affordable flight options available from Atlanta to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 25 October 2026.

Explore the most affordable flight options available from Atlanta to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 25 October 2026.

Best flights from Atlanta to OntarioDiscover carefully curated flight deals from Atlanta to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 25 October 2026.

Discover carefully curated flight deals from Atlanta to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 25 October 2026.

Direct flights from Atlanta to OntarioExplore direct flight options from Atlanta to Ontario based on user searches, and compare prices and availability for your desired travel dates. Data last updated 25 October 2026.

Explore direct flight options from Atlanta to Ontario based on user searches, and compare prices and availability for your desired travel dates. Data last updated 25 October 2026.

Last-minute flights from Atlanta to OntarioDiscover last-minute flight deals from Atlanta to Ontario. Data last updated 25 October 2026 and is based on user searches.

Discover last-minute flight deals from Atlanta to Ontario. Data last updated 25 October 2026 and is based on user searches.

One-way flights from Atlanta to OntarioSearch for one-way flight options from Atlanta to Ontario. Find affordable one-way fares based on user searches. Data last updated 25 October 2026.

Search for one-way flight options from Atlanta to Ontario. Find affordable one-way fares based on user searches. Data last updated 25 October 2026.

Find flight deals from Atlanta to Ontario

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Cheapflights Fare Finder

Use the filters below to find and compare flights from Atlanta to Ontario that are best for you.

Best time to book a flight from Atlanta to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Atlanta with our price prediction graph.

Cheapflights Insights

What is the cheapest month to book a flight from Atlanta to Region of Ontario?

What is the cheapest time of day to fly from ATL to ON?

Find hourly flight availability from Atlanta to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 25 October 2026.

When flying from Atlanta to Region of Ontario, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 37% versus a flight at noon.

Weekly flight availability from Atlanta to Region of Ontario

Explore weekly flight availability from Atlanta to Ontario. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 25 October 2026.

The most flights from ATL to CAON are scheduled on a Friday (21 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (13 on average).

How much does it cost to fly round-trip from Atlanta to Region of Ontario?

Airfare is below average for this route at the moment.

Atlanta to Region of Ontario flights typically cost between C$ 497 and C$ 1,114 in November.The cheapest round-trip price found within the last 5 days was C$ 401 on Multiple Airlines (4 Nov-9 Nov).

How far ahead should I book a flight from Atlanta to Region of Ontario?

Booking 86 days in advance of your planned departure date is, on average, the best time to get cheap flights from Atlanta to Region of Ontario. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest day to fly from Atlanta to Region of Ontario?

Use this chart to determine the cheapest time to fly round-trip from Atlanta to Ontario. Price data was last updated on 24 October 2026.

Travelers seeking maximum savings on their Atlanta to Region of Ontario flight should consider departing on Sunday mornings when fares are most often at their lowest. Thursday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Ontario

Read reviews from past customers who have flown Delta,United Airlines, andWestJet from Atlanta to Ontario. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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Atlanta and Ontario flights

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Top 4 airlines flying from Atlanta to Ontario

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Cheapest flights from Atlanta to Ontario
Explore the most affordable flight options available from Atlanta to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 25 October 2026.

Best flights from Atlanta to Ontario
Discover carefully curated flight deals from Atlanta to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 25 October 2026.

Direct flights from Atlanta to Ontario
Explore direct flight options from Atlanta to Ontario based on user searches, and compare prices and availability for your desired travel dates. Data last updated 25 October 2026.

Last-minute flights from Atlanta to Ontario
Discover last-minute flight deals from Atlanta to Ontario. Data last updated 25 October 2026 and is based on user searches.

One-way flights from Atlanta to Ontario
Search for one-way flight options from Atlanta to Ontario. Find affordable one-way fares based on user searches. Data last updated 25 October 2026.

Atlanta to Region of Ontario flights typically cost between C$ 497 and C$ 1,114 in November.
The cheapest round-trip price found within the last 5 days was C$ 401 on Multiple Airlines (4 Nov-9 Nov).