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$95+ Cheap flights from Atlanta (ATL) to Ontario

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 3/27. Fares are subject to change and may not be available on all flights or dates of travel.
ATL — YYZ
Mar 19 — Mar 261
Wed 3/19
Wed 3/26
1 adult, Economy
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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 March 14, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$214
(Kiwi.com)

One-way from

$95
(Kiwi.com)

Popular in

February

Cheapest in

May

Average price

$595

Good round-trip deal

$483 or less

Good one-way deal

$257 or less
Provider with most accurate pricing for Atlanta Hartsfield-Jackson-Toronto (YTO) flight deals.
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Provider most trusted by Cheapflights users for Atlanta Hartsfield-Jackson-Toronto (YTO) flights.
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From Atlanta Hartsfield-Jackson to Ontario
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One-way flight from Atlanta Hartsfield-Jackson to Ontario
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Highest demand for flights based on searches. 3% potential increase in price ($23 potential increase over avg. RT price).
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Cheapest flight prices on average. 0% potential price decrease ($6 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 March 14, 2025.

This Kiwi.com deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/45:45 amATL - YYZ
2 stops12h 40mMultiple Airlines
Sun 4/69:55 amYYZ - ATL
1 stop7h 51mMultiple Airlines
Deal found 3/13$214
This Kiwi.com deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/145:45 amATL - YOW
1 stop8h 35mMultiple Airlines
Wed 4/234:55 pmYOW - ATL
1 stop7h 37mMultiple Airlines
Deal found 3/13$237
This Mytrip deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/165:12 pmATL - YUL
1 stop21h 43mMultiple Airlines
Tue 4/223:55 pmYUL - ATL
1 stop24h 12mMultiple Airlines
Deal found 3/12$242
This Mytrip deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/35:45 amATL - YTZ
2 stops14h 55mMultiple Airlines
Sat 4/59:25 amYTZ - ATL
3 stops23h 06mMultiple Airlines
Deal found 3/13$246
This Delta deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/810:30 amATL - YYZ
1 stop10h 01mDelta
Tue 4/157:55 amYYZ - ATL
1 stop9h 31mDelta
Deal found 3/12$367
This Air Canada deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/136:30 amATL - YYZ
Nonstop2h 18mAir Canada
Tue 4/152:15 pmYYZ - ATL
Nonstop2h 18mAir Canada
Deal found 3/11$370
This Justfly.com deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2211:45 amATL - YTZ
1 stop6h 05mAir Canada
Tue 4/293:25 pmYTZ - ATL
1 stop6h 04mAir Canada
Deal found 3/13$400
This Air Canada deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/1711:45 amATL - YUL
Nonstop2h 45mAir Canada
Tue 4/2211:15 amYUL - ATL
1 stop5h 18mAir Canada
Deal found 3/11$422
This Delta deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/217:30 amATL - YUL
1 stop8h 34mDelta
Tue 5/2711:00 amYUL - ATL
1 stop9h 34mDelta
Deal found 3/13$432
This Booking.com deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/112:05 pmATL - YOW
2 stops15h 25mWestJet
Tue 6/175:15 pmYOW - ATL
2 stops13h 39mWestJet
Deal found 3/11$447
This FlightHub deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/177:30 amATL - YUL
1 stop8h 30mWestJet
Tue 4/226:45 amYUL - ATL
1 stop7h 04mWestJet
Deal found 3/12$471
This American Airlines deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/215:00 amATL - YUL
1 stop8h 39mAmerican Airlines
Tue 4/227:00 amYUL - ATL
1 stop10h 42mAmerican Airlines
Deal found 3/13$475

Find flights from Atlanta to Ontario within your budget

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 2,558,603 searches. Data last updated March 14, 2025.

Fly from

Atlanta

Fly to

Ontario

Route

Depart

Return

Price

AtlantaToronto

ATL - YYZ

ATLYYZ

Atlanta Hartsfield-Jackson

Fri 4/4

5:45 am-6:25 pm

2 stops12h 40m

Toronto Pearson Intl

Sun 4/6

9:55 am-5:46 pm

1 stop7h 51m

$214

AtlantaOttawa

ATL - YOW

ATLYOW

Atlanta Hartsfield-Jackson

Mon 4/14

5:45 am-2:20 pm

1 stop8h 35m

Ottawa

Wed 4/23

4:55 pm-12:32 am

1 stop7h 37m

$237

AtlantaMontreal

ATL - YUL

ATLYUL

Atlanta Hartsfield-Jackson

Wed 4/16

5:12 pm-2:55 pm

1 stop21h 43m

Montreal Pierre Elliott Trudeau Intl

Tue 4/22

3:55 pm-4:07 pm

1 stop24h 12m

$242

AtlantaToronto

ATL - YTZ

ATLYTZ

Atlanta Hartsfield-Jackson

Thu 4/3

5:45 am-8:40 pm

2 stops14h 55m

Toronto Island

Sat 4/5

9:25 am-8:31 am

3 stops23h 06m

$246

AtlantaToronto

ATL - YYZ

ATLYYZ

Atlanta Hartsfield-Jackson

Tue 4/8

10:30 am-8:31 pm

1 stop10h 01m

Toronto Pearson Intl

Tue 4/15

7:55 am-5:26 pm

1 stop9h 31m

$367

AtlantaToronto

ATL - YYZ

ATLYYZ

Atlanta Hartsfield-Jackson

Sun 4/13

6:30 am-8:48 am

Nonstop2h 18m

Toronto Pearson Intl

Tue 4/15

2:15 pm-4:33 pm

Nonstop2h 18m

$370

AtlantaToronto

ATL - YTZ

ATLYTZ

Atlanta Hartsfield-Jackson

Tue 4/22

11:45 am-5:50 pm

1 stop6h 05m

Toronto Island

Tue 4/29

3:25 pm-9:29 pm

1 stop6h 04m

$400

AtlantaMontreal

ATL - YUL

ATLYUL

Atlanta Hartsfield-Jackson

Thu 4/17

11:45 am-2:30 pm

Nonstop2h 45m

Montreal Pierre Elliott Trudeau Intl

Tue 4/22

11:15 am-4:33 pm

1 stop5h 18m

$422

AtlantaMontreal

ATL - YUL

ATLYUL

Atlanta Hartsfield-Jackson

Wed 5/21

7:30 am-4:04 pm

1 stop8h 34m

Montreal Pierre Elliott Trudeau Intl

Tue 5/27

11:00 am-8:34 pm

1 stop9h 34m

$432

AtlantaOttawa

ATL - YOW

ATLYOW

Atlanta Hartsfield-Jackson

Wed 6/11

2:05 pm-5:30 am

2 stops15h 25m

Ottawa

Tue 6/17

5:15 pm-6:54 am

2 stops13h 39m

$447

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/13

Showing 1-10 of 30 results
1
2
3

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.

Travel insights for flights from Atlanta to Ontario

Get recent, data-driven insights about flights from Atlanta to Ontario including ideal travel times, pricing trends, and more.

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 $243). Flying from Atlanta to Region of Ontario in July is currently the most expensive (average of $359). 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 March 14, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Atlanta to Region of Ontario as you normally would.

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 March 14, 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 (10 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 2.0 - 3.3 inches per month. June is typically the wettest month, when rainfall can reach 3.3 in. February is typically the driest time to visit Region of Ontario when rainfall is around 2.0 in.

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 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 21.2 F).

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 March 14, 2025.
Read through reviews of airlines operating flights from Atlanta to Ontario, such as Delta, United Airlines and American Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,944 reviews

Comfort

8.0

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

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
7,944 reviews
Delta
8.0
Very good
7,944 reviews

Comfort

8.0

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

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
8,623 reviews
Delta
8.0
Very good
7,944 reviews

Comfort

8.0

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

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
7,944 reviews

Comfort

8.0

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

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
2,778 reviews
Delta
8.0
Very good
7,944 reviews

Comfort

8.0

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

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
8,878 reviews
Delta
8.0
Very good
7,944 reviews

Comfort

8.0

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

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?

    Most people fly from Atlanta Hartsfield-Jackson (ATL) if they book a flight from Atlanta to Ontario. Atlanta Hartsfield-Jackson is conveniently located just 8.2 mi from Atlanta’s city center.

  • What are the cheapest airlines to fly from Atlanta to Region of Ontario one-way?

    One-way options have recently been found by users for as low as $167 on WestJet. Other airlines that offer cheap prices include Air Canada from $170 and Delta from $171 one-way.

  • What are the most popular routes from Atlanta to Region of Ontario?

    Most travelers choose Atlanta Hartsfield-Jackson - Toronto Pearson Intl, Atlanta Hartsfield-Jackson - Montreal Pierre Elliott Trudeau Intl or Atlanta Hartsfield-Jackson - Toronto Island when deciding on the best route from Atlanta to Region of Ontario.

  • What are the most reliable airlines from Atlanta to Region of Ontario?

    Before booking your flight to Region of Ontario from Atlanta, check out the most reliable airlines to get you to your destination on time: KLM (100%), Korean Air (74%), WestJet( 73%).

  • What are the cheapest flights from Atlanta to Region of Ontario?

    Looking at all options, your cheapest flight can be booked for $169. While the most popular route (Atlanta Hartsfield-Jackson - Toronto Pearson Intl) can be booked for $167 on average our data indicates $1,572 when flying from Atlanta to Region of Ontario.

  • 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 $243). Flying from Atlanta to Region of Ontario in July is currently the most expensive (average of $359). 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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Top 5 airlines flying from Atlanta to Ontario

Discover the top 5 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 2,558,603 searches. Data last updated March 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapest$225Average$533FlexibilityNo cancel feeOn-time60%
Air CanadaCheapest$235Average$636FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$261Average$740FlexibilityNo cancel feeOn-time69%
DeltaCheapest$274Average$628FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$276Average$673FlexibilityNo cancel feeOn-time71%
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