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Cheap flights from Atlanta to Ontario from C$ 139

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 10/12. Fares are subject to change and may not be available on all flights or dates of travel.
ATL — YYZ
11 oct. — 18 oct.1
1 adult
1 adult, Economy

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 11 septiembre 2025.

Round-trip from

C$ 358

One-way from

C$ 139

Popular in

August

Cheapest in

March

Average price

C$ 870

Good round-trip deal

C$ 327 or less

Good one-way deal

C$ 519 or less
3/10-5/10
  • 3/10-5/10
  • 3 total stops
  • 30h 06m total
  • Atlanta to Ontario
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10/12
  • 10/12
  • 1 total stop
  • 18h 43m total
  • Atlanta to Ontario
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (C$ 59 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease (C$ 13 potential savings vs. average RT price).
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Average for round-trip flights in September 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 11 septiembre 2025.

vie. 3/1010:38 a.m.ATL - YOW
2 stops13h 44mMultiple Airlines
dom. 5/103:50 p.m.YOW - ATL
1 stop16h 22mMultiple Airlines
Deal found 9/9C$ 358
mié. 1/109:20 p.m.ATL - YOW
2 stops27h 02mMultiple Airlines
mié. 15/103:50 p.m.YOW - ATL
1 stop16h 23mMultiple Airlines
Deal found 9/9C$ 362
sáb. 1/119:45 p.m.ATL - YUL
1 stop19h 43mMultiple Airlines
mar. 11/116:45 a.m.YUL - ATL
2 stops30h 53mMultiple Airlines
Deal found 10/9C$ 371
mar. 7/1010:11 p.m.ATL - YOW
1 stop19h 09mMultiple Airlines
mar. 14/103:50 p.m.YOW - ATL
1 stop21h 27mMultiple Airlines
Deal found 9/9C$ 371
sáb. 1/119:45 p.m.ATL - YUL
1 stop19h 43mMultiple Airlines
mié. 12/116:45 a.m.YUL - ATL
2 stops25h 13mMultiple Airlines
Deal found 10/9C$ 376
vie. 19/92:15 p.m.ATL - YYZ
1 stop7h 06mMultiple Airlines
mar. 30/96:30 a.m.YYZ - ATL
1 stop8h 44mMultiple Airlines
Deal found 10/9C$ 377
dom. 12/105:12 a.m.ATL - YTZ
1 stop8h 28mMultiple Airlines
dom. 19/103:35 p.m.YTZ - ATL
1 stop17h 54mMultiple Airlines
Deal found 9/9C$ 377
vie. 26/99:20 p.m.ATL - YYZ
1 stop16h 45mMultiple Airlines
dom. 28/96:30 a.m.YYZ - ATL
2 stops26h 23mMultiple Airlines
Deal found 11/9C$ 378
lun. 22/99:56 p.m.ATL - YYZ
1 stop16h 09mMultiple Airlines
lun. 29/99:35 a.m.YYZ - ATL
1 stop11h 45mMultiple Airlines
Deal found 10/9C$ 380
jue. 25/95:27 a.m.ATL - YYZ
1 stop8h 38mMultiple Airlines
dom. 28/99:35 a.m.YYZ - ATL
1 stop25h 11mMultiple Airlines
Deal found 10/9C$ 381
sáb. 1/119:45 p.m.ATL - YUL
1 stop19h 43mMultiple Airlines
lun. 10/116:45 a.m.YUL - ATL
1 stop16h 23mMultiple Airlines
Deal found 10/9C$ 381
vie. 19/92:15 p.m.ATL - YYZ
1 stop7h 06mMultiple Airlines
lun. 22/91:30 p.m.YYZ - ATL
1 stop21h 16mMultiple Airlines
Deal found 9/9C$ 382

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 11 septiembre 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

mié. 1/10

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

1 stop20h 00m

Ottawa

mié. 15/10

3:50 p.m.-8:13 a.m.

1 stop16h 23m

C$ 370

AtlantaOttawa

ATL - YOW

ATLYOW

Atlanta Hartsfield-Jackson

mar. 7/10

10:11 p.m.-5:20 p.m.

1 stop19h 09m

Ottawa

mar. 14/10

3:50 p.m.-1:17 p.m.

1 stop21h 27m

C$ 371

AtlantaToronto

ATL - YTZ

ATLYTZ

Atlanta Hartsfield-Jackson

sáb. 11/10

9:44 p.m.-12:17 p.m.

1 stop14h 33m

Toronto Island

jue. 16/10

3:35 p.m.-12:31 a.m.

1 stop8h 56m

C$ 382

AtlantaOttawa

ATL - YOW

ATLYOW

Atlanta Hartsfield-Jackson

jue. 23/10

2:00 p.m.-2:56 p.m.

1 stop24h 56m

Ottawa

sáb. 25/10

3:50 p.m.-12:39 a.m.

1 stop8h 49m

C$ 392

AtlantaToronto

ATL - YTZ

ATLYTZ

Atlanta Hartsfield-Jackson

jue. 2/10

7:45 a.m.-1:40 p.m.

1 stop5h 55m

Toronto Island

dom. 5/10

8:40 p.m.-7:36 a.m.

1 stop10h 56m

C$ 399

AtlantaOttawa

ATL - YOW

ATLYOW

Atlanta Hartsfield-Jackson

vie. 5/12

6:45 a.m.-12:35 p.m.

1 stop5h 50m

Ottawa

dom. 7/12

10:00 a.m.-8:09 a.m.

2 stops22h 09m

C$ 399

AtlantaOttawa

ATL - YOW

ATLYOW

Atlanta Hartsfield-Jackson

vie. 3/10

10:46 p.m.-9:31 a.m.

1 stop10h 45m

Ottawa

dom. 5/10

3:50 p.m.-8:12 a.m.

1 stop16h 22m

C$ 402

AtlantaToronto

ATL - YTZ

ATLYTZ

Atlanta Hartsfield-Jackson

jue. 16/10

7:52 a.m.-4:45 p.m.

1 stop8h 53m

Toronto Island

lun. 20/10

12:00 p.m.-12:18 a.m.

2 stops12h 18m

C$ 407

AtlantaOttawa

ATL - YOW

ATLYOW

Atlanta Hartsfield-Jackson

mar. 21/10

10:11 p.m.-5:20 p.m.

1 stop19h 09m

Ottawa

jue. 23/10

4:25 p.m.-12:41 a.m.

1 stop8h 16m

C$ 410

AtlantaToronto

ATL - YTZ

ATLYTZ

Atlanta Hartsfield-Jackson

mié. 24/9

7:45 a.m.-1:40 p.m.

1 stop5h 55m

Toronto Island

mar. 30/9

7:30 p.m.-7:42 a.m.

1 stop12h 12m

C$ 421

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

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, January is the cheapest month in which you can book a flight from Atlanta to Region of Ontario (average of C$ 168). 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 11 septiembre 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 11 septiembre 2025.

The most flights from ATL to CAON are scheduled on a Thursday (29 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (16 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 11 septiembre 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
8.0
Very good
7,960 reviews
Check prices

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

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
7,960 reviews
Delta
8.0
Very good
7,960 reviews
Check prices

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

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
3,091 reviews
Delta
8.0
Very good
7,960 reviews
Check prices

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

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
10,000 reviews
Delta
8.0
Very good
7,960 reviews
Check prices

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

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$ 466, WestJet can have you in Region of Ontario from Atlanta in 12h 31m. There are 1191 km between Atlanta and Region of Ontario. This flight may include one or multiple stops.

  • 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 WestJet (82%), Jazz (82%) or LATAM 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$ 908 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$ 279.

  • 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$ 168). 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
Atlanta to Toronto Island flights
Jacksonville to Pearson Intl flights
Atlanta to Québec City flights
Jacksonville to Vancouver Intl flights
Chattanooga to Pierre Elliott Trudeau Intl flights
Atlanta to Ottawa flights
Atlanta to Halifax flights
Jacksonville to Pierre Elliott Trudeau Intl flights
Atlanta to Edmonton flights
Savannah to Pearson Intl flights
Savannah to Halifax flights
Atlanta to Winnipeg flights
Atlanta to Saskatoon flights
Jacksonville to Calgary flights
Chattanooga to Pearson Intl flights
Jacksonville to Québec City flights
Chattanooga to Québec City flights
Savannah to Pierre Elliott Trudeau Intl flights
Atlanta to Kelowna flights
Savannah to Vancouver Intl flights
Jacksonville to Edmonton flights
Asheville to Pierre Elliott Trudeau Intl flights
Tallahassee to Pierre Elliott Trudeau Intl flights
Tallahassee to Pearson Intl flights
Chattanooga to Calgary flights
Asheville to Calgary flights
Asheville to Victoria flights
Atlanta to Victoria flights
Chattanooga to Vancouver Intl flights
Jacksonville to Toronto Island flights
Atlanta to St. John's flights
Jacksonville to Halifax flights
Asheville to Vancouver Intl flights
Savannah to Calgary flights
Augusta to Winnipeg flights
Jacksonville to Winnipeg flights
Jacksonville to St. John's flights
Augusta to Pierre Elliott Trudeau Intl flights
Chattanooga to Edmonton 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 11 septiembre 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapestC$ 276AverageC$ 322FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air CanadaCheapestC$ 314AverageC$ 839FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
WestJetCheapestC$ 717AverageC$ 1,020FlexibilityNo cancel feeOn-time60%
Search WestJet flights

Fly with Cheapflights

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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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