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Cheap flights from Atlanta to Ontario from C$ 157

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 23/4. Fares are subject to change and may not be available on all flights or dates of travel.
ATL — YYZ
31 Mar — 7 Apr1
1 adult

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 26 March 2025.

Round-trip from

C$ 293

One-way from

C$ 157

Popular in

February

Cheapest in

May

Average price

C$ 835

Good round-trip deal

C$ 285 or less

Good one-way deal

C$ 285 or less
17/4-20/4
  • 17/4-20/4
  • 2 total stops
  • 44h 39m total
  • Atlanta to Ontario
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23/4
  • 23/4
  • 2 total stops
  • 19h 32m total
  • Atlanta to Ontario
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (C$ 45 potential increase over avg. RT price).
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Cheapest flight prices on average. 0% potential price decrease (C$ 12 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Price to beat on a round-trip flight from Atlanta Hartsfield-Jackson to Ontario.
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Price to beat on a one-way flight from Atlanta Hartsfield-Jackson to Ontario.
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Find flight deals from Atlanta to Ontario

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 March 2025.

Thu 17/45:28 a.m.ATL - YYZ
1 stop17h 07mMultiple Airlines
Sun 20/47:55 p.m.YYZ - ATL
1 stop27h 32mMultiple Airlines
Deal found 25/3C$ 293
Wed 23/42:47 p.m.ATL - YTZ
1 stop6h 28mMultiple Airlines
Sun 27/411:10 a.m.YTZ - ATL
1 stop20h 10mMultiple Airlines
Deal found 25/3C$ 359
Thu 10/410:15 p.m.ATL - YUL
2 stops16h 40mMultiple Airlines
Mon 14/43:55 p.m.YUL - ATL
1 stop16h 11mMultiple Airlines
Deal found 25/3C$ 368
Sat 29/36:00 a.m.ATL - YOW
1 stop11h 12mMultiple Airlines
Tue 29/44:55 p.m.YOW - ATL
1 stop16h 30mMultiple Airlines
Deal found 25/3C$ 435
Tue 22/42:48 p.m.ATL - YYZ
Nonstop2h 11mDelta
Tue 29/46:00 a.m.YYZ - ATL
1 stop9h 39mDelta
Deal found 25/3C$ 561
Thu 17/49:20 a.m.ATL - YYZ
Nonstop2h 18mAir Canada
Sun 20/47:15 p.m.YYZ - ATL
Nonstop2h 18mAir Canada
Deal found 25/3C$ 565
Sat 31/52:50 p.m.ATL - YYZ
Nonstop2h 08mWestJet
Sat 31/57:00 p.m.YYZ - ATL
1 stop21h 01mWestJet
Deal found 25/3C$ 578
Mon 26/55:35 a.m.ATL - YYZ
1 stop11h 09mAmerican Airlines
Sat 31/511:05 a.m.YYZ - ATL
1 stop11h 06mAmerican Airlines
Deal found 25/3C$ 612
Wed 28/59:30 p.m.ATL - YUL
1 stop12h 35mDelta
Tue 3/611:00 a.m.YUL - ATL
1 stop9h 34mDelta
Deal found 25/3C$ 619
Wed 11/64:55 p.m.ATL - YOW
1 stop12h 30mWestJet
Tue 17/66:10 a.m.YOW - ATL
1 stop9h 51mWestJet
Deal found 26/3C$ 641
Tue 22/46:00 a.m.ATL - YTZ
2 stops10h 50mAir Canada
Tue 29/43:25 p.m.YTZ - ATL
1 stop6h 04mAir Canada
Deal found 26/3C$ 649
Fri 9/54:55 p.m.ATL - YXU
2 stops26h 14mWestJet
Fri 16/58:00 p.m.YXU - ATL
1 stop20h 24mWestJet
Deal found 25/3C$ 651

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 March 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

AtlantaToronto

ATL - YYZ

ATLYYZ

Atlanta Hartsfield-Jackson

Thu 17/4

5:28 a.m.-10:35 p.m.

1 stop17h 07m

Toronto Pearson Intl

Sun 20/4

7:55 p.m.-11:27 p.m.

1 stop27h 32m

C$ 293

AtlantaToronto

ATL - YTZ

ATLYTZ

Atlanta Hartsfield-Jackson

Wed 23/4

2:47 p.m.-9:15 p.m.

1 stop6h 28m

Toronto Island

Sun 27/4

11:10 a.m.-7:20 a.m.

1 stop20h 10m

C$ 359

AtlantaMontreal

ATL - YUL

ATLYUL

Atlanta Hartsfield-Jackson

Thu 10/4

10:15 p.m.-2:55 p.m.

2 stops16h 40m

Montreal Pierre Elliott Trudeau Intl

Mon 14/4

3:55 p.m.-8:06 a.m.

1 stop16h 11m

C$ 368

AtlantaOttawa

ATL - YOW

ATLYOW

Atlanta Hartsfield-Jackson

Wed 16/4

5:28 a.m.-5:40 p.m.

1 stop12h 12m

Ottawa

Wed 30/4

6:15 a.m.-7:50 p.m.

2 stops13h 35m

C$ 442

AtlantaToronto

ATL - YYZ

ATLYYZ

Atlanta Hartsfield-Jackson

Tue 22/4

12:30 p.m.-8:50 p.m.

1 stop8h 20m

Toronto Pearson Intl

Tue 29/4

6:00 a.m.-3:39 p.m.

1 stop9h 39m

C$ 515

AtlantaToronto

ATL - YYZ

ATLYYZ

Atlanta Hartsfield-Jackson

Thu 17/4

9:20 a.m.-11:38 a.m.

Nonstop2h 18m

Toronto Pearson Intl

Sun 20/4

7:15 p.m.-9:33 p.m.

Nonstop2h 18m

C$ 565

AtlantaToronto

ATL - YYZ

ATLYYZ

Atlanta Hartsfield-Jackson

Sat 31/5

2:50 p.m.-4:58 p.m.

Nonstop2h 08m

Toronto Pearson Intl

Sat 31/5

7:00 p.m.-4:01 p.m.

1 stop21h 01m

C$ 578

AtlantaToronto

ATL - YYZ

ATLYYZ

Atlanta Hartsfield-Jackson

Mon 26/5

5:35 a.m.-4:44 p.m.

1 stop11h 09m

Toronto Pearson Intl

Sat 31/5

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

1 stop11h 06m

C$ 612

AtlantaMontreal

ATL - YUL

ATLYUL

Atlanta Hartsfield-Jackson

Wed 28/5

9:30 p.m.-10:05 a.m.

1 stop12h 35m

Montreal Pierre Elliott Trudeau Intl

Tue 3/6

11:00 a.m.-8:34 p.m.

1 stop9h 34m

C$ 619

AtlantaOttawa

ATL - YOW

ATLYOW

Atlanta Hartsfield-Jackson

Wed 11/6

4:55 p.m.-5:25 a.m.

1 stop12h 30m

Ottawa

Tue 17/6

6:10 a.m.-4:01 p.m.

1 stop9h 51m

C$ 641

Flights are sorted by cheapest round-trip flights first.

Deals found on 25/3

Showing 1-10 of 38 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, January is the cheapest month in which you can book a flight from Atlanta to Region of Ontario (average of C$ 167). Flying from Atlanta to Region of Ontario in July is currently the most expensive (average of C$ 258). 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 March 2025.

When flying from Atlanta to Region of Ontario, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 March 2025.

The most flights from ATL to CAON are scheduled on a Wednesday (24 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (12 on average).

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

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.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

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).

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 March 2025.
Get a feel of what it's like to fly with Delta, United Airlines and American Airlines from Atlanta to Ontario by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,891 reviews
Check prices

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Overall

8.0

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
8.0
Very good
7,891 reviews
Delta
8.0
Very good
7,891 reviews
Check prices

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Overall

8.0

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.
United Airlines
7.4
Good
8,608 reviews
Delta
8.0
Very good
7,891 reviews
Check prices

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Overall

8.0

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.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,891 reviews
Check prices

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Overall

8.0

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
2,785 reviews
Delta
8.0
Very good
7,891 reviews
Check prices

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Overall

8.0

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
7.0
Good
8,960 reviews
Delta
8.0
Very good
7,891 reviews
Check prices

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Overall

8.0

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.

  • 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$ 273), Delta (C$ 293), and Sun Country Air (C$ 297).

  • 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 LATAM Airlines (79%), Korean Air (78%) or Jazz (73%) 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$ 611 for a flight from Atlanta to Region of Ontario. The cheapest flight overall is C$ 243 while the most popular route, (Atlanta Hartsfield-Jackson - Toronto Pearson Intl) is currently priced at C$ 265.

  • 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, January is the cheapest month in which you can book a flight from Atlanta to Region of Ontario (average of C$ 167). Flying from Atlanta to Region of Ontario in July is currently the most expensive (average of C$ 258). 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 Vancouver Intl flights
Atlanta to Pierre Elliott Trudeau Intl flights
Atlanta to Calgary flights
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Atlanta to Winnipeg flights
Asheville to Vancouver Intl flights
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Asheville to Pierre Elliott Trudeau Intl flights
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Chattanooga to Vancouver Intl flights
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Jacksonville to Halifax flights
Atlanta to Charlottetown flights
Tallahassee to Pearson Intl flights
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Augusta to Pearson Intl flights
Atlanta to St. John's flights
Atlanta to Kelowna flights
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Savannah to Calgary flights
Asheville to Calgary flights
Jacksonville to Toronto Island flights
Chattanooga to Calgary flights
Jacksonville to Québec City flights
Jacksonville to St. John's flights
Jacksonville to Winnipeg flights
Chattanooga to Pierre Elliott Trudeau Intl flights
Tallahassee to Pierre Elliott Trudeau Intl flights
Atlanta to Whitehorse flights
Chattanooga to Edmonton flights
Augusta to Winnipeg flights
Asheville to Victoria flights

Top 4 airlines flying from Atlanta to Ontario

Discover the top 4 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 March 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapestC$ 285AverageC$ 337FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air CanadaCheapestC$ 338AverageC$ 797FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 356AverageC$ 852FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
WestJetCheapestC$ 701AverageC$ 1,113FlexibilityNo 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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