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Ontario

$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 6/3. Fares are subject to change and may not be available on all flights or dates of travel.
ATL — YYZ
Apr 30 — May 71
Wed 4/30
Wed 5/7
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 April 25, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$240
(Kiwi.com)

One-way from

$95
(Kiwi.com)

Popular in

February

Cheapest in

May

Average price

$601

Good round-trip deal

$581 or less

Good one-way deal

$303 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. 2% potential increase in price ($12 potential increase over avg. RT price).
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Cheapest flight prices on average. 0% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in April 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 April 25, 2025.

This Kiwi.com deal was found by Cheapflights users on 4/24. 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.
Tue 5/276:40 amATL - YTZ
2 stops12h 47mMultiple Airlines
Tue 6/37:55 amYTZ - ATL
1 stop12h 09mMultiple Airlines
Deal found 4/24$240
This Kiwi.com deal was found by Cheapflights users on 4/24. 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.
Wed 5/1410:39 amATL - YYZ
1 stop11h 11mMultiple Airlines
Wed 5/214:00 pmYYZ - ATL
1 stop6h 57mMultiple Airlines
Deal found 4/24$256
This Kiwi.com deal was found by Cheapflights users on 4/23. 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.
Wed 5/1410:39 amATL - YUL
2 stops13h 58mMultiple Airlines
Tue 5/206:45 amYUL - ATL
1 stop7h 03mMultiple Airlines
Deal found 4/23$285
This Kiwi.com deal was found by Cheapflights users on 4/25. 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.
Tue 5/1310:15 pmATL - YOW
1 stop16h 56mMultiple Airlines
Tue 5/204:25 pmYOW - ATL
1 stop7h 34mMultiple Airlines
Deal found 4/25$293
This Mytrip deal was found by Cheapflights users on 4/24. 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.
Fri 6/62:05 pmATL - YOW
1 stop21h 26mWestJet
Sun 6/85:15 pmYOW - ATL
1 stop22h 46mWestJet
Deal found 4/24$362
This Sun Country Air deal was found by Cheapflights users on 4/24. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/107:45 amATL - YYZ
1 stop9h 05mSun Country Air
Thu 8/2111:40 amYYZ - ATL
1 stop5h 53mSun Country Air
Deal found 4/24$391
This WestJet deal was found by Cheapflights users on 4/24. 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 WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/116:12 pmATL - YYZ
1 stop14h 47mWestJet
Sun 10/1212:00 pmYYZ - ATL
1 stop25h 10mWestJet
Deal found 4/24$398
This Delta deal was found by Cheapflights users on 4/25. 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.
Mon 6/2310:40 pmATL - YYZ
1 stop12h 44mDelta
Mon 7/146:45 pmYYZ - ATL
1 stop13h 39mDelta
Deal found 4/25$402
This Delta deal was found by Cheapflights users on 4/25. 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.
Fri 6/138:00 pmATL - YUL
1 stop14h 08mDelta
Tue 6/246:00 amYUL - ATL
1 stop9h 25mDelta
Deal found 4/25$405
This American Airlines deal was found by Cheapflights users on 4/25. 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.
Tue 5/275:35 amATL - YYZ
1 stop11h 09mAmerican Airlines
Wed 6/411:32 amYYZ - ATL
1 stop10h 22mAmerican Airlines
Deal found 4/25$434
This United Airlines deal was found by Cheapflights users on 4/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/18:30 amATL - YOW
1 stop8h 36mUnited Airlines
Thu 6/55:15 amYOW - ATL
1 stop5h 08mUnited Airlines
Deal found 4/24$591
This Air Canada deal was found by Cheapflights users on 4/25. 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 7/202:05 pmATL - YOW
1 stop4h 55mAir Canada
Sun 8/102:25 pmYOW - ATL
1 stop7h 15mAir Canada
Deal found 4/25$640

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 2,558,603 searches. Data last updated April 25, 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 - YTZ

ATLYTZ

Atlanta Hartsfield-Jackson

Tue 5/27

6:40 am-7:27 pm

2 stops12h 47m

Toronto Island

Tue 6/3

7:55 am-8:04 pm

1 stop12h 09m

$240

AtlantaToronto

ATL - YYZ

ATLYYZ

Atlanta Hartsfield-Jackson

Wed 5/14

10:39 am-9:50 pm

1 stop11h 11m

Toronto Pearson Intl

Wed 5/21

4:00 pm-10:57 pm

1 stop6h 57m

$256

AtlantaMontreal

ATL - YUL

ATLYUL

Atlanta Hartsfield-Jackson

Wed 5/14

10:39 am-12:37 am

2 stops13h 58m

Montreal Pierre Elliott Trudeau Intl

Tue 5/20

6:45 am-1:48 pm

1 stop7h 03m

$285

AtlantaOttawa

ATL - YOW

ATLYOW

Atlanta Hartsfield-Jackson

Tue 5/13

10:15 pm-3:11 pm

1 stop16h 56m

Ottawa

Tue 5/20

4:25 pm-11:59 pm

1 stop7h 34m

$293

AtlantaOttawa

ATL - YOW

ATLYOW

Atlanta Hartsfield-Jackson

Fri 6/6

2:05 pm-11:31 am

1 stop21h 26m

Ottawa

Sun 6/8

5:15 pm-4:01 pm

1 stop22h 46m

$362

AtlantaToronto

ATL - YYZ

ATLYYZ

Atlanta Hartsfield-Jackson

Mon 6/23

10:40 pm-11:24 am

1 stop12h 44m

Toronto Pearson Intl

Mon 7/14

6:45 pm-8:24 am

1 stop13h 39m

$402

AtlantaMontreal

ATL - YUL

ATLYUL

Atlanta Hartsfield-Jackson

Fri 6/13

8:00 pm-10:08 am

1 stop14h 08m

Montreal Pierre Elliott Trudeau Intl

Tue 6/24

6:00 am-3:25 pm

1 stop9h 25m

$405

AtlantaToronto

ATL - YYZ

ATLYYZ

Atlanta Hartsfield-Jackson

Fri 5/16

2:05 pm-6:04 pm

1 stop27h 59m

Toronto Pearson Intl

Sun 5/18

11:30 am-1:48 pm

Nonstop2h 18m

$428

AtlantaToronto

ATL - YYZ

ATLYYZ

Atlanta Hartsfield-Jackson

Tue 5/27

5:35 am-4:44 pm

1 stop11h 09m

Toronto Pearson Intl

Wed 6/4

11:32 am-9:54 pm

1 stop10h 22m

$434

AtlantaToronto

ATL - YTZ

ATLYTZ

Atlanta Hartsfield-Jackson

Fri 5/30

8:55 am-2:50 pm

1 stop5h 55m

Toronto Island

Sat 6/14

3:25 pm-9:56 pm

1 stop6h 31m

$577

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/25

Showing 1-10 of 31 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 $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 April 25, 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 April 25, 2025.

The most flights from ATL to CAON are scheduled on a Wednesday (28 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (14 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 April 25, 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
7,920 reviews

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

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
7,920 reviews
Delta
8.0
Very good
7,920 reviews

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

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
8,685 reviews
Delta
8.0
Very good
7,920 reviews

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

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
7,920 reviews

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

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
2,818 reviews
Delta
8.0
Very good
7,920 reviews

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

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
7.0
Good
9,207 reviews
Delta
8.0
Very good
7,920 reviews

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

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?

    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 $164 on WestJet. Other airlines that offer cheap prices include American Airlines from $178 and Delta from $201 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: LATAM Airlines (82%), Korean Air (78%), Jazz( 77%).

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

    Looking at all options, your cheapest flight can be booked for $177. While the most popular route (Atlanta Hartsfield-Jackson - Toronto Pearson Intl) can be booked for $234 on average our data indicates $918 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 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 2,558,603 searches. Data last updated April 25, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$221Average$639FlexibilityNo cancel feeOn-time67%
WestJetCheapest$225Average$508FlexibilityNo cancel feeOn-time60%
United AirlinesCheapest$251Average$737FlexibilityNo cancel feeOn-time69%
DeltaCheapest$256Average$623FlexibilityNo cancel feeOn-timeN/A

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