HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
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 9/25. Fares are subject to change and may not be available on all flights or dates of travel.
ATL — YYZ
jul. 8 — jul. 151
mar. 7/8
mar. 7/15
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Atlanta to Ontario with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 julio 3, 2025.

Round-trip from

$273
(Kiwi.com)

One-way from

$95
(Kiwi.com)

Popular in

February

Cheapest in

March

Average price

$621

Good round-trip deal

$602 or less

Good one-way deal

$291 or less
From Atlanta Hartsfield-Jackson to Ontario
Search Deals
One-way flight from Atlanta Hartsfield-Jackson to Ontario
Search Deals
Highest demand for flights based on searches. 1% potential increase in price ($6 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 0% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
Search Deals
Price to beat on a round-trip flight from Atlanta Hartsfield-Jackson to Ontario.
Search Deals
Price to beat on a one-way flight from Atlanta Hartsfield-Jackson to Ontario.
Search Deals

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 julio 3, 2025.

This Kiwi.com deal was found by Cheapflights users on 6/30. 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.
vie. 9/122:15 pmATL - YYZ
1 stop7h 06mMultiple Airlines
vie. 9/1911:00 amYYZ - ATL
1 stop7h 38mMultiple Airlines
Deal found 6/30$273
This Kiwi.com deal was found by Cheapflights users on 7/2. 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.
lun. 8/410:23 pmATL - YTZ
1 stop19h 20mMultiple Airlines
mié. 8/67:55 amYTZ - ATL
1 stop13h 13mMultiple Airlines
Deal found 7/2$273
This Kiwi.com deal was found by Cheapflights users on 7/1. 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.
mar. 9/163:00 pmATL - YUL
2 stops7h 15mMultiple Airlines
mar. 9/236:35 pmYUL - ATL
1 stop13h 52mMultiple Airlines
Deal found 7/1$290
This oojo deal was found by Cheapflights users on 7/2. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/42:00 pmATL - YYZ
1 stop7h 13mWestJet
dom. 9/78:00 pmYYZ - ATL
1 stop10h 50mWestJet
Deal found 7/2$293
This oojo deal was found by Cheapflights users on 7/3. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/52:00 pmATL - YOW
1 stop21h 32mWestJet
lun. 9/85:15 pmYOW - ATL
1 stop22h 40mWestJet
Deal found 7/3$321
This Kiwi.com deal was found by Cheapflights users on 7/1. 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.
mié. 8/67:40 amATL - YOW
1 stop7h 16mMultiple Airlines
lun. 8/1110:55 amYOW - ATL
1 stop21h 35mMultiple Airlines
Deal found 7/1$336
This Air Canada deal was found by Cheapflights users on 7/2. 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.
vie. 8/16:00 amATL - YSB
1 stop9h 17mAir Canada
vie. 8/89:45 amYSB - ATL
1 stop5h 35mAir Canada
Deal found 7/2$627
This Mytrip deal was found by Cheapflights users on 7/2. 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.
vie. 8/111:06 amATL - YSB
3 stops24h 20mMultiple Airlines
vie. 8/812:10 pmYSB - ATL
2 stops12h 22mMultiple Airlines
Deal found 7/2$699

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 julio 3, 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

vie. 9/12

2:15 pm-9:21 pm

1 stop7h 06m

Toronto Pearson Intl

vie. 9/19

11:00 am-6:38 pm

1 stop7h 38m

$273

AtlantaToronto

ATL - YTZ

ATLYTZ

Atlanta Hartsfield-Jackson

lun. 8/4

10:23 pm-5:43 pm

1 stop19h 20m

Toronto Island

mié. 8/6

7:55 am-9:08 pm

1 stop13h 13m

$273

AtlantaMontreal

ATL - YUL

ATLYUL

Atlanta Hartsfield-Jackson

mar. 9/16

3:00 pm-10:15 pm

2 stops7h 15m

Montreal Pierre Elliott Trudeau Intl

mar. 9/23

6:35 pm-8:27 am

1 stop13h 52m

$290

AtlantaToronto

ATL - YYZ

ATLYYZ

Atlanta Hartsfield-Jackson

jue. 9/4

2:00 pm-9:13 pm

1 stop7h 13m

Toronto Pearson Intl

dom. 9/7

8:00 pm-6:50 am

1 stop10h 50m

$293

AtlantaOttawa

ATL - YOW

ATLYOW

Atlanta Hartsfield-Jackson

vie. 9/5

2:00 pm-11:32 am

1 stop21h 32m

Ottawa

lun. 9/8

5:15 pm-3:55 pm

1 stop22h 40m

$321

AtlantaOttawa

ATL - YOW

ATLYOW

Atlanta Hartsfield-Jackson

mié. 8/6

7:40 am-2:56 pm

1 stop7h 16m

Ottawa

lun. 8/11

10:55 am-8:30 am

1 stop21h 35m

$336

AtlantaSudbury

ATL - YSB

ATLYSB

Atlanta Hartsfield-Jackson

vie. 8/1

6:00 am-3:17 pm

1 stop9h 17m

Sudbury

vie. 8/8

9:45 am-3:20 pm

1 stop5h 35m

$627

AtlantaSudbury

ATL - YSB

ATLYSB

Atlanta Hartsfield-Jackson

vie. 8/1

11:06 am-11:26 am

3 stops24h 20m

Sudbury

vie. 8/8

12:10 pm-12:32 am

2 stops12h 22m

$699

AtlantaMontreal

ATL - YUL

ATLYUL

Atlanta Hartsfield-Jackson

jue. 9/25

3:00 pm-10:15 pm

2 stops7h 15m

$95

AtlantaToronto

ATL - YYZ

ATLYYZ

Atlanta Hartsfield-Jackson

vie. 7/25

10:15 pm-12:30 pm

1 stop14h 15m

$139

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

Showing 1-10 of 16 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 $243). Flying from Atlanta to Region of Ontario in August is currently the most expensive (average of $348). 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 julio 3, 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 julio 3, 2025.

The most flights from ATL to CAON are scheduled on a Wednesday (24 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (6 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 julio 3, 2025.
See what other customers who have flown with Delta, American Airlines, and WestJet from Atlanta to Ontario have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,970 reviews

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

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
7,970 reviews
Delta
8.0
Very good
7,970 reviews

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

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.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,970 reviews

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

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
2,917 reviews
Delta
8.0
Very good
7,970 reviews

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

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
9,678 reviews
Delta
8.0
Very good
7,970 reviews

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

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?

    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 $175 on American Airlines. Other airlines that offer cheap prices include WestJet from $179 and Delta from $191 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: United Airlines (71%), Korean Air (62%), TAP AIR PORTUGAL( 61%).

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

    Looking at all options, your cheapest flight can be booked for $261. While the most popular route (Atlanta Hartsfield-Jackson - Toronto Pearson Intl) can be booked for $243 on average our data indicates $2,400 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 August is currently the most expensive (average of $348). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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
Atlanta to Abbotsford flights
Jacksonville to Pearson Intl flights
Jacksonville to Vancouver Intl flights
Atlanta to Québec City flights
Atlanta to St. John's flights
Jacksonville to Calgary flights
Atlanta to Edmonton flights
Jacksonville to Pierre Elliott Trudeau Intl flights
Atlanta to Ottawa flights
Atlanta to Winnipeg flights
Jacksonville to Halifax flights
Atlanta to Halifax flights
Atlanta to Victoria flights
Asheville to Vancouver Intl flights
Asheville to Calgary flights
Chattanooga to Pierre Elliott Trudeau Intl flights
Savannah to Pearson Intl flights
Savannah to Pierre Elliott Trudeau Intl flights
Jacksonville to Québec City flights
Savannah to Vancouver Intl flights
Jacksonville to Ottawa flights
Chattanooga to Pearson Intl flights
Asheville to Pierre Elliott Trudeau Intl flights
Asheville to Québec City flights
Jacksonville to Toronto Island flights
Atlanta to Saskatoon flights
Augusta to Pierre Elliott Trudeau Intl flights
Atlanta to Kelowna flights
Tallahassee to Vancouver Intl flights
Atlanta to Charlottetown flights
Chattanooga to Vancouver Intl flights
Brunswick to Pearson Intl flights
Atlanta to Regina flights
Atlanta to Kamloops flights
Asheville to Pearson Intl flights
Asheville to Halifax flights
Atlanta to Yellowknife flights
Augusta to Pearson Intl flights
Tallahassee to Calgary flights
Jacksonville to London flights
Atlanta to Sydney flights
Chattanooga to Québec City flights
Tallahassee to Pearson Intl flights
Savannah to Halifax flights
Savannah 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 2,558,603 searches. Data last updated julio 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapest$225Average$508FlexibilityNo cancel feeOn-time60%
Air CanadaCheapest$240Average$666FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$247Average$726FlexibilityNo cancel feeOn-time69%
DeltaCheapest$260Average$625FlexibilityNo cancel feeOn-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.