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Cheap flights from Atlanta to Ontario from C$ 68

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 27/1. Fares are subject to change and may not be available on all flights or dates of travel.
ATL — YYZ
11 Jan — 18 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Atlanta to Ontario

Enter your travel dates to find the best prices.

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 12 December 2025.

Wed 24/125:15 a.m.ATL - YYZ
2 stops14h 48mMultiple Airlines
Mon 5/13:40 p.m.YYZ - ATL
1 stop26h 13mMultiple Airlines
Deal found 9/12C$ 374
Thu 25/129:57 p.m.ATL - YTZ
2 stops24h 06mMultiple Airlines
Wed 7/16:15 p.m.YTZ - ATL
1 stop6h 24mMultiple Airlines
Deal found 10/12C$ 375
Wed 24/125:15 a.m.ATL - YYZ
1 stop10h 02mMultiple Airlines
Sun 11/18:30 p.m.YYZ - ATL
1 stop11h 08mMultiple Airlines
Deal found 11/12C$ 378
Thu 25/125:21 a.m.ATL - YYZ
1 stop9h 56mMultiple Airlines
Thu 8/13:15 p.m.YYZ - ATL
1 stop8h 05mMultiple Airlines
Deal found 11/12C$ 383
Wed 24/125:15 a.m.ATL - YYZ
1 stop10h 02mMultiple Airlines
Wed 7/13:40 p.m.YYZ - ATL
1 stop9h 18mMultiple Airlines
Deal found 11/12C$ 385
Fri 26/1210:40 p.m.ATL - YYZ
1 stop16h 37mMultiple Airlines
Wed 7/13:40 p.m.YYZ - ATL
1 stop9h 18mMultiple Airlines
Deal found 10/12C$ 388
Sat 27/125:21 a.m.ATL - YYZ
1 stop9h 56mMultiple Airlines
Sun 11/18:30 p.m.YYZ - ATL
1 stop13h 54mMultiple Airlines
Deal found 11/12C$ 389
Thu 25/125:21 a.m.ATL - YYZ
1 stop9h 56mMultiple Airlines
Fri 9/17:10 a.m.YYZ - ATL
1 stop8h 22mMultiple Airlines
Deal found 11/12C$ 390
Fri 12/1210:40 p.m.ATL - YYZ
1 stop16h 00mMultiple Airlines
Mon 15/127:10 a.m.YYZ - ATL
1 stop14h 31mMultiple Airlines
Deal found 10/12C$ 394
Wed 24/125:15 a.m.ATL - YYZ
1 stop10h 02mMultiple Airlines
Mon 12/111:15 a.m.YYZ - ATL
1 stop8h 01mMultiple Airlines
Deal found 11/12C$ 396
Wed 24/129:57 p.m.ATL - YYZ
1 stop15h 26mMultiple Airlines
Wed 31/127:15 a.m.YYZ - ATL
2 stops11h 36mMultiple Airlines
Deal found 9/12C$ 397
Thu 25/129:57 p.m.ATL - YTZ
2 stops24h 06mMultiple Airlines
Wed 31/128:55 a.m.YTZ - ATL
1 stop12h 24mMultiple Airlines
Deal found 10/12C$ 397

Find flight deals from Atlanta to Ontario

Keep the following information in mind while searching for Atlanta to Ontario flight deals. Data was last updated 12 December 2025.

Round-trip from

C$ 343

One-way from

C$ 68

Popular in

August

Cheapest in

January

Average price

C$ 896

Good round-trip deal

C$ 295 or less

Good one-way deal

C$ 442 or less
14/1-19/1
  • 14/1-19/1
  • 2 total stops
  • 33h 17m total
  • Atlanta to Ontario
Search Deals
27/1
  • 27/1
  • 1 total stop
  • 26h 59m total
  • Atlanta to Ontario
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (C$ 80 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 20 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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

Cheapflights Fare Finder

 
Customize your flight search to find flights from Atlanta to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 12 December 2025.
Use the filters below to find and compare flights from Atlanta to Ontario that are best for you.

Fly from

Atlanta

Fly to

Ontario

Route

Depart

Return

Price

AtlantaOttawa

ATL - YOW

ATLYOW

Atlanta Hartsfield-Jackson

Sun 25/1

10:56 p.m.-5:13 p.m.

1 stop18h 17m

Ottawa

Sun 1/2

4:15 p.m.-10:24 a.m.

1 stop18h 09m

C$ 345

AtlantaMontreal

ATL - YUL

ATLYUL

Atlanta Hartsfield-Jackson

Mon 26/1

5:25 a.m.-12:35 a.m.

3 stops19h 10m

Montreal Pierre Elliott Trudeau Intl

Mon 2/2

8:00 a.m.-7:16 p.m.

1 stop11h 16m

C$ 383

AtlantaToronto

ATL - YTZ

ATLYTZ

Atlanta Hartsfield-Jackson

Wed 18/2

6:00 a.m.-11:40 a.m.

1 stop5h 40m

Toronto Island

Sat 21/2

11:05 a.m.-9:17 a.m.

1 stop22h 12m

C$ 385

AtlantaToronto

ATL - YTZ

ATLYTZ

Atlanta Hartsfield-Jackson

Sun 25/1

5:45 a.m.-10:35 a.m.

1 stop4h 50m

Toronto Island

Sun 1/2

2:05 p.m.-10:24 a.m.

2 stops20h 19m

C$ 389

AtlantaToronto

ATL - YTZ

ATLYTZ

Atlanta Hartsfield-Jackson

Sat 10/1

9:19 p.m.-10:35 a.m.

1 stop13h 16m

Toronto Island

Mon 12/1

8:50 a.m.-6:35 p.m.

1 stop9h 45m

C$ 389

AtlantaToronto

ATL - YTZ

ATLYTZ

Atlanta Hartsfield-Jackson

Thu 15/1

8:05 a.m.-1:20 p.m.

1 stop5h 15m

Toronto Island

Mon 19/1

7:40 p.m.-8:51 a.m.

1 stop13h 11m

C$ 397

AtlantaToronto

ATL - YTZ

ATLYTZ

Atlanta Hartsfield-Jackson

Mon 5/1

5:57 a.m.-3:58 p.m.

2 stops10h 01m

Toronto Island

Thu 8/1

8:50 a.m.-8:16 a.m.

1 stop23h 26m

C$ 401

AtlantaToronto

ATL - YTZ

ATLYTZ

Atlanta Hartsfield-Jackson

Wed 18/2

10:45 p.m.-10:35 a.m.

1 stop11h 50m

Toronto Island

Sun 22/2

6:15 p.m.-1:06 a.m.

1 stop6h 51m

C$ 403

AtlantaToronto

ATL - YTZ

ATLYTZ

Atlanta Hartsfield-Jackson

Thu 15/1

8:05 a.m.-4:25 p.m.

1 stop8h 20m

Toronto Island

Wed 21/1

3:00 p.m.-1:11 a.m.

1 stop10h 11m

C$ 405

AtlantaToronto

ATL - YTZ

ATLYTZ

Atlanta Hartsfield-Jackson

Fri 9/1

5:45 a.m.-11:40 a.m.

1 stop5h 55m

Toronto Island

Sun 11/1

7:00 a.m.-11:25 p.m.

2 stops16h 25m

C$ 415

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/12

Showing 1-10 of 60 results
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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.
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

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

Currently, June is the cheapest month in which you can book a flight from Atlanta to Region of Ontario (average of C$ 137). Flying from Atlanta to Region of Ontario in October is currently the most expensive (average of C$ 441). 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?

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 12 December 2025.

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 evening, which can drop the price by up to 58% versus a flight in the morning.

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 16 December 2024.

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

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 12 December 2025.

The most flights from ATL to CAON are scheduled on a Thursday (23 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (18 on average).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated 12 December 2025.
Read reviews from past customers who have flown Delta,WestJet, andAir Canada from Atlanta to Ontario. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,005 reviews
Check prices

Boarding

8.1

Food

7.3

Entertainment

7.9

Crew

8.5

Comfort

7.9

Overall

7.9

Reviews

1 / 20
2.0
Mediocre

Santiago,Apr 2024

ATL - JNB

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.
Delta
7.9
Good
8,005 reviews
Delta
7.9
Good
8,005 reviews
Check prices

Boarding

8.1

Food

7.3

Entertainment

7.9

Crew

8.5

Comfort

7.9

Overall

7.9

Reviews

1 / 20
2.0
Mediocre

Santiago,Apr 2024

ATL - JNB

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.
WestJet
7.2
Good
3,194 reviews
Delta
7.9
Good
8,005 reviews
Check prices

Boarding

8.1

Food

7.3

Entertainment

7.9

Crew

8.5

Comfort

7.9

Overall

7.9

Reviews

1 / 20
2.0
Mediocre

Santiago,Apr 2024

ATL - JNB

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.
Air Canada
7.1
Good
10,514 reviews
Delta
7.9
Good
8,005 reviews
Check prices

Boarding

8.1

Food

7.3

Entertainment

7.9

Crew

8.5

Comfort

7.9

Overall

7.9

Reviews

1 / 20
2.0
Mediocre

Santiago,Apr 2024

ATL - JNB

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Related info for your journey

Find useful and relevant information for your journey from Atlanta to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • 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$ 483, Delta can have you in Region of Ontario from Atlanta in 9h 40m. There are 1191 km between Atlanta and Region of Ontario. This flight may include one or multiple stops.

  • 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 WestJet (C$ 104), Frontier (C$ 109), and United Airlines (C$ 211).

  • 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 Atlas Air (100%), TAP AIR PORTUGAL (93%) or United Airlines (90%) 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$ 685 for a flight from Atlanta to Region of Ontario. The cheapest flight overall is C$ 262 while the most popular route, (Atlanta Hartsfield-Jackson - Toronto Pearson Intl) is currently priced at C$ 200.

  • 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, June is the cheapest month in which you can book a flight from Atlanta to Region of Ontario (average of C$ 137). Flying from Atlanta to Region of Ontario in October is currently the most expensive (average of C$ 441). 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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Alternative routes for Atlanta to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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Savannah to Halifax flights
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Tallahassee to Ottawa flights
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Top 3 airlines flying from Atlanta to Ontario

Discover the top 3 airlines that operate flights from Atlanta to Ontario. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 12 December 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapestC$ 275AverageC$ 310FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air CanadaCheapestC$ 312AverageC$ 827FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
WestJetCheapestC$ 441AverageC$ 1,015FlexibilityNo cancel feeOn-time60%
Search WestJet flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

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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