Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from Atlanta to Ontario from C$ 166

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 10/6. Fares are subject to change and may not be available on all flights or dates of travel.
ATL — YYZ
5 May — 12 May1
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 30 April 2025.

Round-trip from

C$ 300

One-way from

C$ 166

Popular in

February

Cheapest in

May

Average price

C$ 832

Good round-trip deal

C$ 337 or less

Good one-way deal

C$ 369 or less
4/6-14/6
  • 4/6-14/6
  • 2 total stops
  • 45h 55m total
  • Atlanta to Ontario
Search Deals
10/6
  • 10/6
  • 2 total stops
  • 14h 37m total
  • Atlanta to Ontario
Search Deals
Highest demand for flights based on searches. 1% potential increase in price (C$ 22 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 13 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 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 30 April 2025.

Wed 4/67:16 p.m.ATL - YYZ
1 stop18h 49mMultiple Airlines
Sat 14/66:30 a.m.YYZ - ATL
1 stop27h 06mMultiple Airlines
Deal found 29/4C$ 300
Sat 19/79:30 p.m.ATL - YTZ
1 stop14h 50mMultiple Airlines
Wed 23/77:55 a.m.YTZ - ATL
1 stop6h 50mMultiple Airlines
Deal found 28/4C$ 368
Mon 9/67:38 a.m.ATL - YUL
1 stop10h 17mMultiple Airlines
Sat 14/66:45 a.m.YUL - ATL
2 stops11h 30mMultiple Airlines
Deal found 28/4C$ 432
Tue 3/67:50 a.m.ATL - YOW
1 stop7h 06mMultiple Airlines
Wed 4/64:10 p.m.YOW - ATL
1 stop6h 25mMultiple Airlines
Deal found 29/4C$ 458
Wed 14/512:30 p.m.ATL - YUL
1 stop8h 39mDelta
Wed 21/56:05 a.m.YUL - ATL
1 stop9h 18mDelta
Deal found 29/4C$ 592
Sat 31/59:30 p.m.ATL - YYZ
1 stop12h 00mDelta
Wed 4/67:55 a.m.YYZ - ATL
1 stop11h 35mDelta
Deal found 29/4C$ 599
Sat 11/106:12 p.m.ATL - YYZ
1 stop14h 47mWestJet
Sun 12/1012:00 p.m.YYZ - ATL
1 stop25h 10mWestJet
Deal found 29/4C$ 610
Wed 28/55:35 a.m.ATL - YYZ
1 stop11h 09mAmerican Airlines
Fri 30/56:20 p.m.YYZ - ATL
1 stop15h 49mAmerican Airlines
Deal found 29/4C$ 642
Wed 11/64:55 p.m.ATL - YOW
1 stop12h 30mWestJet
Tue 17/66:10 a.m.YOW - ATL
1 stop9h 51mWestJet
Deal found 29/4C$ 653
Wed 4/68:55 a.m.ATL - YTZ
1 stop5h 55mAir Canada
Sat 14/63:25 p.m.YTZ - ATL
1 stop6h 31mAir Canada
Deal found 29/4C$ 873
Thu 10/711:05 a.m.ATL - YXU
1 stop6h 02mAir Canada
Sun 13/73:35 p.m.YXU - ATL
1 stop5h 51mAir Canada
Deal found 29/4C$ 920
Sun 20/72:05 p.m.ATL - YOW
1 stop6h 10mAir Canada
Sun 10/82:25 p.m.YOW - ATL
1 stop7h 15mAir Canada
Deal found 29/4C$ 945

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 30 April 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

Wed 4/6

7:16 p.m.-2:05 p.m.

1 stop18h 49m

Toronto Pearson Intl

Sat 14/6

6:30 a.m.-9:36 a.m.

1 stop27h 06m

C$ 300

AtlantaToronto

ATL - YTZ

ATLYTZ

Atlanta Hartsfield-Jackson

Sat 19/7

9:30 p.m.-12:20 p.m.

1 stop14h 50m

Toronto Island

Wed 23/7

7:55 a.m.-2:45 p.m.

1 stop6h 50m

C$ 368

AtlantaMontreal

ATL - YUL

ATLYUL

Atlanta Hartsfield-Jackson

Mon 9/6

7:38 a.m.-5:55 p.m.

1 stop10h 17m

Montreal Pierre Elliott Trudeau Intl

Sat 14/6

6:45 a.m.-6:15 p.m.

2 stops11h 30m

C$ 432

AtlantaOttawa

ATL - YOW

ATLYOW

Atlanta Hartsfield-Jackson

Tue 3/6

7:50 a.m.-2:56 p.m.

1 stop7h 06m

Ottawa

Wed 4/6

4:10 p.m.-10:35 p.m.

1 stop6h 25m

C$ 458

AtlantaMontreal

ATL - YUL

ATLYUL

Atlanta Hartsfield-Jackson

Wed 14/5

12:30 p.m.-9:09 p.m.

1 stop8h 39m

Montreal Pierre Elliott Trudeau Intl

Wed 21/5

6:05 a.m.-3:23 p.m.

1 stop9h 18m

C$ 592

AtlantaToronto

ATL - YYZ

ATLYYZ

Atlanta Hartsfield-Jackson

Sat 31/5

9:30 p.m.-9:30 a.m.

1 stop12h 00m

Toronto Pearson Intl

Wed 4/6

7:55 a.m.-7:30 p.m.

1 stop11h 35m

C$ 599

AtlantaToronto

ATL - YYZ

ATLYYZ

Atlanta Hartsfield-Jackson

Sat 11/10

6:12 p.m.-8:59 a.m.

1 stop14h 47m

Toronto Pearson Intl

Sun 12/10

12:00 p.m.-1:10 p.m.

1 stop25h 10m

C$ 610

AtlantaToronto

ATL - YYZ

ATLYYZ

Atlanta Hartsfield-Jackson

Wed 28/5

5:35 a.m.-4:44 p.m.

1 stop11h 09m

Toronto Pearson Intl

Fri 30/5

6:20 p.m.-10:09 a.m.

1 stop15h 49m

C$ 642

AtlantaOttawa

ATL - YOW

ATLYOW

Atlanta Hartsfield-Jackson

Wed 11/6

4:55 p.m.-5:25 a.m.

1 stop12h 30m

Ottawa

Tue 17/6

6:10 a.m.-4:01 p.m.

1 stop9h 51m

C$ 653

AtlantaToronto

ATL - YYZ

ATLYYZ

Atlanta Hartsfield-Jackson

Sun 6/7

7:00 a.m.-4:50 p.m.

1 stop9h 50m

Toronto Pearson Intl

Thu 17/7

11:40 a.m.-5:24 p.m.

1 stop5h 44m

C$ 659

Flights are sorted by cheapest round-trip flights first.

Deals found on 28/4

Showing 1-10 of 32 results
1
2
3
4

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 30 April 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 30 April 2025.

The most flights from ATL to CAON are scheduled on a Monday (26 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 51.0 - 83.0 mm per month. June is typically the wettest month, when rainfall can reach 83.0 mm. February is typically the driest time to visit Region of Ontario when rainfall is around 51.0 mm.

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 21.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -6.0 C).

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 30 April 2025.
Get a feel of what it's like to fly with Delta, United Airlines and American Airlines from Atlanta to Ontario by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,929 reviews
Check prices

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Food

7.3

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
7,929 reviews
Delta
8.0
Very good
7,929 reviews
Check prices

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Food

7.3

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
8,696 reviews
Delta
8.0
Very good
7,929 reviews
Check prices

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Food

7.3

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
7,929 reviews
Check prices

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Food

7.3

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
2,826 reviews
Delta
8.0
Very good
7,929 reviews
Check prices

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Food

7.3

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
9,244 reviews
Delta
8.0
Very good
7,929 reviews
Check prices

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Food

7.3

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?

    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 American Airlines (C$ 302), WestJet (C$ 303), and United Airlines (C$ 336).

  • 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 LATAM Airlines (82%), Korean Air (78%) or Jazz (77%) 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$ 656 for a flight from Atlanta to Region of Ontario. The cheapest flight overall is C$ 264 while the most popular route, (Atlanta Hartsfield-Jackson - Toronto Pearson Intl) is currently priced at C$ 300.

  • 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

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
Jacksonville to Pearson Intl flights
Jacksonville to Vancouver Intl flights
Atlanta to Québec City flights
Atlanta to Winnipeg flights
Atlanta to Halifax flights
Atlanta to Edmonton flights
Jacksonville to Calgary flights
Jacksonville to Pierre Elliott Trudeau Intl flights
Atlanta to Ottawa flights
Atlanta to Charlottetown flights
Chattanooga to Vancouver Intl flights
Savannah to Pearson Intl flights
Atlanta to Victoria flights
Jacksonville to Québec City flights
Savannah to Pierre Elliott Trudeau Intl flights
Asheville to Vancouver Intl flights
Asheville to Calgary flights
Savannah to Vancouver Intl flights
Jacksonville to Toronto Island flights
Asheville to Pierre Elliott Trudeau Intl flights
Atlanta to St. John's flights
Augusta to Pearson Intl flights
Tallahassee to Pearson Intl flights
Chattanooga to Pearson Intl flights
Augusta to Pierre Elliott Trudeau Intl flights
Savannah to Calgary flights
Atlanta to Kelowna flights
Jacksonville to St. John's flights
Jacksonville to Halifax flights
Chattanooga to Edmonton flights
Atlanta to Whitehorse flights
Chattanooga to Calgary flights
Asheville to Victoria flights
Tallahassee to Pierre Elliott Trudeau Intl flights
Savannah to Halifax flights
Tallahassee to Halifax flights
Tallahassee to Calgary flights
Chattanooga to Pierre Elliott Trudeau Intl 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 629,999 searches. Data last updated 30 April 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapestC$ 276AverageC$ 326FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air CanadaCheapestC$ 327AverageC$ 762FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 345AverageC$ 791FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
WestJetCheapestC$ 678AverageC$ 1,028FlexibilityNo 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.

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.