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Cheap flights from Atlanta to Ontario from C$ 115

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 24/12. Fares are subject to change and may not be available on all flights or dates of travel.
ATL — YYZ
27 Nov — 4 Dec1
1 adult
1 adult, Economy, 0 bags

Find 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 28 October 2025.

Thu 4/128:39 a.m.ATL - YOW
1 stop8h 34mMultiple Airlines
Sun 7/124:20 p.m.YOW - ATL
3 stops30h 44mMultiple Airlines
Deal found 27/10C$ 306
Thu 11/129:57 p.m.ATL - YYZ
1 stop16h 43mMultiple Airlines
Wed 17/127:10 a.m.YYZ - ATL
1 stop14h 49mMultiple Airlines
Deal found 26/10C$ 350
Thu 13/118:25 a.m.ATL - YYZ
2 stops31h 15mMultiple Airlines
Mon 17/117:00 a.m.YYZ - ATL
1 stop16h 08mMultiple Airlines
Deal found 28/10C$ 351
Thu 20/118:25 a.m.ATL - YYZ
2 stops15h 14mWestJet
Thu 4/1210:50 p.m.YYZ - ATL
1 stop12h 59mWestJet
Deal found 26/10C$ 354
Wed 10/125:12 p.m.ATL - YYZ
2 stops21h 28mMultiple Airlines
Wed 17/127:10 a.m.YYZ - ATL
1 stop14h 49mMultiple Airlines
Deal found 27/10C$ 355
Wed 12/1111:16 a.m.ATL - YYZ
2 stops27h 24mMultiple Airlines
Fri 14/117:00 a.m.YYZ - ATL
2 stops12h 00mMultiple Airlines
Deal found 26/10C$ 357
Fri 21/1112:40 p.m.ATL - YYZ
1 stop10h 58mWestJet
Fri 5/126:30 p.m.YYZ - ATL
1 stop12h 42mWestJet
Deal found 26/10C$ 358
Thu 4/124:20 p.m.ATL - YYZ
1 stop7h 51mMultiple Airlines
Mon 8/125:15 p.m.YYZ - ATL
1 stop28h 11mMultiple Airlines
Deal found 27/10C$ 359
Thu 13/116:00 a.m.ATL - YYZ
1 stop8h 40mMultiple Airlines
Sun 16/114:00 p.m.YYZ - ATL
2 stops31h 08mMultiple Airlines
Deal found 26/10C$ 361
Sat 13/124:20 p.m.ATL - YYZ
1 stop6h 15mMultiple Airlines
Fri 9/17:10 a.m.YYZ - ATL
1 stop7h 30mMultiple Airlines
Deal found 26/10C$ 362
Wed 19/111:58 p.m.ATL - YYZ
1 stop24h 42mMultiple Airlines
Mon 24/117:00 a.m.YYZ - ATL
1 stop24h 47mMultiple Airlines
Deal found 26/10C$ 364
Wed 24/1210:50 p.m.ATL - YOW
1 stop18h 20mMultiple Airlines
Wed 31/127:00 a.m.YOW - ATL
1 stop8h 19mMultiple Airlines
Deal found 26/10C$ 364

Cheap flight deals from Atlanta to Ontario

Keep the following information in mind while searching for Atlanta to Ontario flight deals. Data was last updated 28 October 2025.

Round-trip from

C$ 306

One-way from

C$ 115

Popular in

August

Cheapest in

January

Average price

C$ 785

Good round-trip deal

C$ 336 or less

Good one-way deal

C$ 430 or less
4/12-7/12
  • 4/12-7/12
  • 4 total stops
  • 39h 18m total
  • Atlanta to Ontario
Search Deals
24/12
  • 24/12
  • 1 total stop
  • 6h 57m total
  • Atlanta to Ontario
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (C$ 26 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 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 28 October 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

Thu 4/12

8:39 a.m.-5:13 p.m.

1 stop8h 34m

Ottawa

Sun 7/12

4:20 p.m.-11:04 p.m.

3 stops30h 44m

C$ 306

AtlantaToronto

ATL - YYZ

ATLYYZ

Atlanta Hartsfield-Jackson

Fri 21/11

12:40 p.m.-3:53 p.m.

1 stop27h 13m

Toronto Pearson Intl

Thu 27/11

10:50 p.m.-11:49 a.m.

1 stop12h 59m

C$ 387

AtlantaMontreal

ATL - YUL

ATLYUL

Atlanta Hartsfield-Jackson

Fri 12/12

10:40 p.m.-4:23 p.m.

1 stop17h 43m

Montreal Pierre Elliott Trudeau Intl

Sun 14/12

5:25 p.m.-7:48 a.m.

2 stops14h 23m

C$ 418

AtlantaOttawa

ATL - YOW

ATLYOW

Atlanta Hartsfield-Jackson

Mon 24/11

11:28 a.m.-5:25 p.m.

1 stop5h 57m

Ottawa

Mon 1/12

9:30 a.m.-7:58 a.m.

3 stops22h 28m

C$ 420

AtlantaMontreal

ATL - YUL

ATLYUL

Atlanta Hartsfield-Jackson

Thu 22/1

5:47 a.m.-3:10 p.m.

1 stop9h 23m

Montreal Pierre Elliott Trudeau Intl

Mon 26/1

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

1 stop12h 12m

C$ 425

AtlantaToronto

ATL - YTZ

ATLYTZ

Atlanta Hartsfield-Jackson

Thu 20/11

3:37 p.m.-9:15 p.m.

1 stop5h 38m

Toronto Island

Sun 23/11

2:30 p.m.-9:22 a.m.

1 stop18h 52m

C$ 427

AtlantaToronto

ATL - YTZ

ATLYTZ

Atlanta Hartsfield-Jackson

Mon 17/11

3:12 p.m.-8:00 p.m.

1 stop4h 48m

Toronto Island

Thu 20/11

7:40 p.m.-1:03 a.m.

1 stop5h 23m

C$ 431

AtlantaToronto

ATL - YYZ

ATLYYZ

Atlanta Hartsfield-Jackson

Fri 21/11

12:40 p.m.-11:55 p.m.

1 stop11h 15m

Toronto Pearson Intl

Thu 27/11

7:15 a.m.-8:39 a.m.

2 stops25h 24m

C$ 436

AtlantaOttawa

ATL - YOW

ATLYOW

Atlanta Hartsfield-Jackson

Mon 22/12

5:40 a.m.-5:13 p.m.

1 stop11h 33m

Ottawa

Wed 31/12

7:00 a.m.-3:19 p.m.

1 stop8h 19m

C$ 436

AtlantaToronto

ATL - YTZ

ATLYTZ

Atlanta Hartsfield-Jackson

Thu 20/11

11:28 a.m.-7:50 p.m.

2 stops8h 22m

Toronto Island

Mon 24/11

3:45 p.m.-8:52 p.m.

1 stop5h 07m

C$ 439

Flights are sorted by cheapest round-trip flights first.

Deals found on 27/10

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$ 138). Flying from Atlanta to Region of Ontario in October is currently the most expensive (average of C$ 414). 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 28 October 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 56% 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.

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

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 28 October 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
7,995 reviews
Check prices

Boarding

8.2

Crew

8.5

Overall

7.9

Comfort

7.9

Food

7.3

Entertainment

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
7,995 reviews
Delta
7.9
Good
7,995 reviews
Check prices

Boarding

8.2

Crew

8.5

Overall

7.9

Comfort

7.9

Food

7.3

Entertainment

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
3,148 reviews
Delta
7.9
Good
7,995 reviews
Check prices

Boarding

8.2

Crew

8.5

Overall

7.9

Comfort

7.9

Food

7.3

Entertainment

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
10,370 reviews
Delta
7.9
Good
7,995 reviews
Check prices

Boarding

8.2

Crew

8.5

Overall

7.9

Comfort

7.9

Food

7.3

Entertainment

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$ 387, WestJet can have you in Region of Ontario from Atlanta in 27h 13m. There are 1191 km between Atlanta and Region of Ontario.

  • 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 Air Canada (93%), United Airlines (92%) or Jazz (91%) 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$ 528 for a flight from Atlanta to Region of Ontario. The cheapest flight overall is C$ 128 while the most popular route, (Atlanta Hartsfield-Jackson - Toronto Pearson Intl) is currently priced at C$ 301.

  • 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$ 138). Flying from Atlanta to Region of Ontario in October is currently the most expensive (average of C$ 414). 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.
Atlanta to Pearson Intl flights
Atlanta to Pierre Elliott Trudeau Intl flights
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Savannah to Vancouver Intl flights
Asheville to Calgary flights
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Chattanooga to Vancouver Intl flights
Savannah to Pierre Elliott Trudeau Intl flights
Atlanta to Saskatoon flights
Tallahassee to Pierre Elliott Trudeau Intl flights
Atlanta to Winnipeg flights
Augusta to Pearson Intl flights
Savannah to Calgary flights
Jacksonville to Calgary flights
Atlanta to Victoria flights
Asheville to Pierre Elliott Trudeau Intl flights
Jacksonville to Québec City flights
Augusta to Pierre Elliott Trudeau Intl flights
Jacksonville to Toronto Island flights
Asheville to Vancouver Intl flights
Jacksonville to Winnipeg flights
Jacksonville to St. John's flights
Tallahassee to Pearson Intl flights
Chattanooga to Québec City flights
Atlanta to St. John's flights
Chattanooga to Calgary flights
Jacksonville to Halifax flights
Tallahassee to Halifax flights
Chattanooga to Edmonton flights
Atlanta to Kelowna flights
Savannah to Victoria flights
Atlanta to Whitehorse flights
Chattanooga to Pearson Intl flights
Tallahassee to Calgary flights

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 28 October 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapestC$ 279AverageC$ 315FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air CanadaCheapestC$ 316AverageC$ 838FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
WestJetCheapestC$ 685AverageC$ 1,030FlexibilityNo cancel feeOn-time60%
Search WestJet flights

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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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