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Cheap flights from Atlanta to Ontario from C$ 95

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 21/4. Fares are subject to change and may not be available on all flights or dates of travel.
ATL — YYZ
25 Feb — 4 Mar1
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 26 January 2026.

Thu 19/29:38 a.m.
ATL
-
YYZ
1 stop10h 17m
Multiple Airlines
Sun 22/210:05 a.m.
YYZ
-
ATL
1 stop21h 49m
Multiple Airlines
Deal found 26/1C$ 340
Thu 12/210:56 p.m.
ATL
-
YYZ
1 stop15h 24m
Multiple Airlines
Wed 18/23:40 p.m.
YYZ
-
ATL
1 stop16h 19m
Multiple Airlines
Deal found 24/1C$ 341
Thu 5/26:00 a.m.
ATL
-
YYZ
1 stop8h 20m
Multiple Airlines
Mon 9/27:00 a.m.
YYZ
-
ATL
1 stop13h 49m
Multiple Airlines
Deal found 24/1C$ 344
Tue 31/310:44 p.m.
ATL
-
YYZ
1 stop24h 36m
Multiple Airlines
Fri 10/42:20 p.m.
YYZ
-
ATL
1 stop19h 44m
Multiple Airlines
Deal found 26/1C$ 348
Thu 16/47:00 a.m.
ATL
-
YYZ
1 stop7h 05m
Multiple Airlines
Mon 20/46:30 a.m.
YYZ
-
ATL
1 stop10h 34m
Multiple Airlines
Deal found 24/1C$ 349
Mon 2/28:24 a.m.
ATL
-
YUL
2 stops11h 50m
Multiple Airlines
Mon 9/28:00 a.m.
YUL
-
ATL
1 stop26h 24m
Multiple Airlines
Deal found 25/1C$ 349
Thu 16/47:00 a.m.
ATL
-
YYZ
1 stop7h 05m
Multiple Airlines
Sun 19/47:15 a.m.
YYZ
-
ATL
2 stops16h 23m
Multiple Airlines
Deal found 24/1C$ 353
Fri 6/33:12 p.m.
ATL
-
YYZ
1 stop8h 08m
Multiple Airlines
Mon 9/33:40 p.m.
YYZ
-
ATL
1 stop16h 14m
Multiple Airlines
Deal found 25/1C$ 355
Wed 4/24:27 p.m.
ATL
-
YYZ
1 stop21h 53m
Multiple Airlines
Fri 6/27:10 a.m.
YYZ
-
ATL
1 stop24h 04m
Multiple Airlines
Deal found 24/1C$ 357
Wed 25/210:45 p.m.
ATL
-
YTZ
1 stop11h 50m
Multiple Airlines
Wed 4/37:25 a.m.
YTZ
-
ATL
2 stops9h 30m
Multiple Airlines
Deal found 26/1C$ 357
Wed 25/26:00 a.m.
ATL
-
YYZ
2 stops14h 09m
Multiple Airlines
Wed 4/33:40 p.m.
YYZ
-
ATL
1 stop7h 23m
Multiple Airlines
Deal found 26/1C$ 360
Thu 19/26:00 a.m.
ATL
-
YTZ
1 stop5h 40m
Multiple Airlines
Sun 22/22:05 p.m.
YTZ
-
ATL
2 stops17h 49m
Multiple Airlines
Deal found 25/1C$ 360

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 26 January 2026.

Round-trip from

C$ 340

One-way from

C$ 95

Popular in

August

Cheapest in

February

Average price

C$ 907

Good round-trip deal

C$ 371 or less

Good one-way deal

C$ 205 or less
19/2-22/2
  • 19/2-22/2
  • 2 total stops
  • 32h 06m total
  • Atlanta to Ontario
Search Deals
21/4
  • 21/4
  • 1 total stop
  • 15h 21m total
  • Atlanta to Ontario
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (C$ 85 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 January 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

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 26 January 2026.
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

Thu 19/2

9:38 a.m.-12:25 a.m.

1 stop14h 47m

Ottawa

Fri 20/2

4:40 p.m.-7:42 a.m.

2 stops15h 02m

C$ 363

AtlantaToronto

ATL - YTZ

ATLYTZ

Atlanta Hartsfield-Jackson

Thu 19/2

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

1 stop5h 40m

Toronto Island

Sun 22/2

2:05 p.m.-7:54 a.m.

2 stops17h 49m

C$ 367

AtlantaOttawa

ATL - YOW

ATLYOW

Atlanta Hartsfield-Jackson

Mon 23/2

4:17 p.m.-12:25 a.m.

1 stop8h 08m

Ottawa

Mon 2/3

11:00 a.m.-8:47 a.m.

2 stops21h 47m

C$ 368

AtlantaOttawa

ATL - YOW

ATLYOW

Atlanta Hartsfield-Jackson

Wed 18/2

10:44 p.m.-12:25 a.m.

1 stop25h 41m

Ottawa

Wed 25/2

3:40 p.m.-7:42 a.m.

2 stops16h 02m

C$ 371

AtlantaToronto

ATL - YTZ

ATLYTZ

Atlanta Hartsfield-Jackson

Thu 19/2

9:15 p.m.-1:47 p.m.

1 stop16h 32m

Toronto Island

Tue 24/2

12:50 p.m.-1:12 a.m.

2 stops12h 22m

C$ 379

AtlantaToronto

ATL - YYZ

ATLYYZ

Atlanta Hartsfield-Jackson

Wed 4/3

4:17 p.m.-11:20 p.m.

1 stop7h 03m

Toronto Pearson Intl

Sun 8/3

10:05 a.m.-8:11 p.m.

1 stop10h 06m

C$ 382

AtlantaOttawa

ATL - YOW

ATLYOW

Atlanta Hartsfield-Jackson

Fri 27/2

6:05 a.m.-5:25 p.m.

1 stop11h 20m

Ottawa

Sun 1/3

12:10 p.m.-9:03 a.m.

2 stops20h 53m

C$ 382

AtlantaMontreal

ATL - YUL

ATLYUL

Atlanta Hartsfield-Jackson

Thu 26/3

5:25 a.m.-3:10 p.m.

1 stop9h 45m

Montreal Pierre Elliott Trudeau Intl

Mon 30/3

8:00 a.m.-7:44 a.m.

1 stop23h 44m

C$ 396

AtlantaOttawa

ATL - YOW

ATLYOW

Atlanta Hartsfield-Jackson

Wed 4/3

10:15 a.m.-2:58 p.m.

1 stop28h 43m

Ottawa

Sun 8/3

4:15 p.m.-12:45 a.m.

1 stop8h 30m

C$ 414

AtlantaMontreal

ATL - YUL

ATLYUL

Atlanta Hartsfield-Jackson

Sat 28/2

10:45 p.m.-3:10 p.m.

2 stops16h 25m

Montreal Pierre Elliott Trudeau Intl

Sun 8/3

8:00 a.m.-12:45 a.m.

1 stop16h 45m

C$ 429

Flights are sorted by cheapest round-trip flights first.

Deals found on 25/1

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$ 136). Flying from Atlanta to Region of Ontario in October is currently the most expensive (average of C$ 438). 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 26 January 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 at noon, which can drop the price by up to 59% 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 17 January 2026.

Travelers seeking maximum savings on their Atlanta to Region of Ontario flight should consider departing on Sunday 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 26 January 2026.

The most flights from ATL to CAON are scheduled on a Thursday (18 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (11 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 26 January 2026.
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
8,113 reviews
Check prices

Crew

8.5

Comfort

7.9

Food

7.2

Boarding

8.1

Entertainment

7.8

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
8,113 reviews
Delta
7.9
Good
8,113 reviews
Check prices

Crew

8.5

Comfort

7.9

Food

7.2

Boarding

8.1

Entertainment

7.8

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
3,249 reviews
Delta
7.9
Good
8,113 reviews
Check prices

Crew

8.5

Comfort

7.9

Food

7.2

Boarding

8.1

Entertainment

7.8

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
10,656 reviews
Delta
7.9
Good
8,113 reviews
Check prices

Crew

8.5

Comfort

7.9

Food

7.2

Boarding

8.1

Entertainment

7.8

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$ 840, WestJet can have you in Region of Ontario from Atlanta in 22h 10m. There are 1081 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 Frontier (C$ 108), WestJet (C$ 144), and United Airlines (C$ 223).

  • 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 TAP AIR PORTUGAL (90%), Jazz (82%) or United Airlines (82%) 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$ 604 for a flight from Atlanta to Region of Ontario. The cheapest flight overall is C$ 193 while the most popular route, (Atlanta Hartsfield-Jackson - Toronto Pearson Intl) is currently priced at C$ 296.

  • 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$ 136). Flying from Atlanta to Region of Ontario in October is currently the most expensive (average of C$ 438). 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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Chattanooga to Pearson Intl 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 26 January 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapestC$ 273AverageC$ 308FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air CanadaCheapestC$ 297AverageC$ 811FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
WestJetCheapestC$ 438AverageC$ 1,008FlexibilityNo 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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