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Cheap flights from Atlanta to Ontario from C$ 130

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 26/8. Fares are subject to change and may not be available on all flights or dates of travel.
ATL — YYZ
3 Aug — 10 Aug1
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 29 July 2025.

Round-trip from

C$ 375

One-way from

C$ 130

Popular in

February

Cheapest in

March

Average price

C$ 860

Good round-trip deal

C$ 317 or less

Good one-way deal

C$ 372 or less
13/8-19/8
  • 13/8-19/8
  • 6 total stops
  • 32h 26m total
  • Atlanta to Ontario
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26/8
  • 26/8
  • 2 total stops
  • 14h 15m total
  • Atlanta to Ontario
Search Deals
Highest demand for flights based on searches. 1% potential increase in price (C$ 11 potential increase over avg. RT price).
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Cheapest flight prices on average. 0% potential price decrease (C$ 11 potential savings vs. average RT price).
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Average for round-trip flights in July 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 29 July 2025.

Tue 16/95:27 a.m.ATL - YYZ
1 stop8h 38mMultiple Airlines
Wed 24/97:15 a.m.YYZ - ATL
1 stop6h 51mMultiple Airlines
Deal found 27/7C$ 377
Tue 26/88:00 a.m.ATL - YTZ
1 stop12h 02mMultiple Airlines
Tue 2/97:45 a.m.YTZ - ATL
1 stop5h 46mMultiple Airlines
Deal found 27/7C$ 383
Thu 18/92:00 p.m.ATL - YYZ
1 stop7h 13mWestJet
Mon 22/96:30 p.m.YYZ - ATL
1 stop12h 23mWestJet
Deal found 27/7C$ 387
Wed 13/85:45 a.m.ATL - YUL
3 stops16h 30mMultiple Airlines
Tue 19/87:00 a.m.YUL - ATL
3 stops17h 51mMultiple Airlines
Deal found 27/7C$ 390
Wed 10/97:47 a.m.ATL - YOW
1 stop7h 09mMultiple Airlines
Mon 15/94:05 p.m.YOW - ATL
1 stop15h 37mMultiple Airlines
Deal found 29/7C$ 443
Wed 10/95:15 p.m.ATL - YXU
1 stop11h 57mWestJet
Wed 17/98:00 p.m.YXU - ATL
1 stop10h 50mWestJet
Deal found 26/7C$ 457
Fri 26/98:30 a.m.ATL - YOW
1 stop16h 10mWestJet
Mon 29/97:15 p.m.YOW - ATL
1 stop11h 35mWestJet
Deal found 28/7C$ 505
Wed 10/99:20 p.m.ATL - YXU
3 stops31h 52mMultiple Airlines
Wed 17/98:00 p.m.YXU - ATL
2 stops21h 24mMultiple Airlines
Deal found 26/7C$ 627
Sun 27/711:05 a.m.ATL - YXU
1 stop6h 02mAir Canada
Thu 31/73:40 p.m.YXU - ATL
1 stop6h 02mAir Canada
Deal found 26/7C$ 2,445

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 29 July 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

AtlantaMontreal

ATL - YUL

ATLYUL

Atlanta Hartsfield-Jackson

Wed 13/8

5:45 a.m.-10:15 p.m.

3 stops16h 30m

Montreal Pierre Elliott Trudeau Intl

Tue 19/8

8:55 a.m.-12:51 a.m.

3 stops15h 56m

C$ 375

AtlantaToronto

ATL - YYZ

ATLYYZ

Atlanta Hartsfield-Jackson

Tue 16/9

5:27 a.m.-2:05 p.m.

1 stop8h 38m

Toronto Pearson Intl

Wed 24/9

7:15 a.m.-2:06 p.m.

1 stop6h 51m

C$ 377

AtlantaToronto

ATL - YTZ

ATLYTZ

Atlanta Hartsfield-Jackson

Tue 26/8

8:00 a.m.-8:02 p.m.

1 stop12h 02m

Toronto Island

Tue 2/9

7:45 a.m.-1:31 p.m.

1 stop5h 46m

C$ 383

AtlantaToronto

ATL - YYZ

ATLYYZ

Atlanta Hartsfield-Jackson

Thu 18/9

2:00 p.m.-9:13 p.m.

1 stop7h 13m

Toronto Pearson Intl

Mon 22/9

6:30 p.m.-6:53 a.m.

1 stop12h 23m

C$ 387

AtlantaOttawa

ATL - YOW

ATLYOW

Atlanta Hartsfield-Jackson

Wed 10/9

7:47 a.m.-2:56 p.m.

1 stop7h 09m

Ottawa

Mon 15/9

4:05 p.m.-7:42 a.m.

1 stop15h 37m

C$ 443

AtlantaLondon

ATL - YXU

ATLYXU

Atlanta Hartsfield-Jackson

Wed 10/9

5:15 p.m.-5:12 a.m.

1 stop11h 57m

London

Wed 17/9

8:00 p.m.-6:50 a.m.

1 stop10h 50m

C$ 457

AtlantaOttawa

ATL - YOW

ATLYOW

Atlanta Hartsfield-Jackson

Fri 26/9

8:30 a.m.-12:40 a.m.

1 stop16h 10m

Ottawa

Mon 29/9

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

1 stop11h 35m

C$ 505

AtlantaLondon

ATL - YXU

ATLYXU

Atlanta Hartsfield-Jackson

Wed 10/9

9:20 p.m.-5:12 a.m.

3 stops31h 52m

London

Wed 17/9

8:00 p.m.-5:24 p.m.

2 stops21h 24m

C$ 627

AtlantaMontreal

ATL - YUL

ATLYUL

Atlanta Hartsfield-Jackson

Tue 26/8

8:00 a.m.-10:15 p.m.

2 stops14h 15m

C$ 130

AtlantaOttawa

ATL - YOW

ATLYOW

Atlanta Hartsfield-Jackson

Thu 21/8

7:45 a.m.-2:56 p.m.

1 stop7h 11m

C$ 213

Flights are sorted by cheapest round-trip flights first.

Deals found on 27/7

Showing 1-10 of 20 results
1
2

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 29 July 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 29 July 2025.

The most flights from ATL to CAON are scheduled on a Monday (29 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (12 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 29 July 2025.
Read reviews from past customers who have flown Delta,United Airlines, andAmerican Airlines from Atlanta to Ontario. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,979 reviews
Check prices

Food

7.3

Comfort

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

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
8.0
Very good
7,979 reviews
Delta
8.0
Very good
7,979 reviews
Check prices

Food

7.3

Comfort

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

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.
United Airlines
7.4
Good
8,896 reviews
Delta
8.0
Very good
7,979 reviews
Check prices

Food

7.3

Comfort

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

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.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,979 reviews
Check prices

Food

7.3

Comfort

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

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
2,972 reviews
Delta
8.0
Very good
7,979 reviews
Check prices

Food

7.3

Comfort

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

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
9,826 reviews
Delta
8.0
Very good
7,979 reviews
Check prices

Food

7.3

Comfort

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

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.

  • 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 United Airlines (C$ 276), WestJet (C$ 283), and Delta (C$ 284).

  • 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 Jazz (69%), Air Canada (67%) or TAP AIR PORTUGAL (61%) 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$ 674 for a flight from Atlanta to Region of Ontario. The cheapest flight overall is C$ 296 while the most popular route, (Atlanta Hartsfield-Jackson - Toronto Pearson Intl) is currently priced at C$ 310.

  • 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
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Tallahassee to Ottawa flights
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Chattanooga to Québec City flights
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Tallahassee to Calgary flights
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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 29 July 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapestC$ 273AverageC$ 318FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air CanadaCheapestC$ 310AverageC$ 823FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 342AverageC$ 923FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
WestJetCheapestC$ 710AverageC$ 1,010FlexibilityNo 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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