$165 Find Cheap Flights from Atlanta to Ontario

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Atlanta to Ontario departing on 6/24. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Ontario

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Atlanta to Ontario, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Atlanta to Ontario, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Atlanta to Ontario

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Toronto
Toronto1 stop$321
Ottawa
Ottawa1 stop$420
Sudbury
Sudbury1 stop$669
Toronto
Toronto1 stop$321
Ottawa
Ottawa1 stop$420
Sudbury
Sudbury1 stop$669

Book Cheap Atlanta to Ontario Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Atlanta to Ontario that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Atlanta to Ontario

Sat, Sep 5 - Wed, Sep 9
Multiple Airlines Logo
8:17 am - 5:20 pm
ATL
-
YTZ
9h 03m
1 stop
Multiple Airlines Logo
1:40 pm - 11:15 pm
YTZ
-
ATL
9h 35m
1 stop
$321Multiple Airlines
Sat, Sep 5 - Thu, Sep 10
Multiple Airlines Logo
8:17 am - 5:20 pm
ATL
-
YTZ
9h 03m
1 stop
Multiple Airlines Logo
1:40 pm - 11:15 pm
YTZ
-
ATL
9h 35m
1 stop
$334Multiple Airlines
Thu, Aug 27 - Mon, Aug 31
Multiple Airlines Logo
9:16 pm - 12:55 pm
ATL
-
YTZ
15h 39m
1 stop
Multiple Airlines Logo
1:40 pm - 11:09 pm
YTZ
-
ATL
9h 29m
1 stop
$343Multiple Airlines
Mon, Jul 20 - Fri, Jul 24
Air Canada Logo
3:00 pm - 9:15 pm
ATL
-
YOW
6h 15m
1 stop
Air Canada Logo
9:05 am - 4:19 pm
YOW
-
ATL
7h 14m
1 stop
$420Air Canada
Sun, Jun 21 - Wed, Jun 24
United Airlines Logo
11:11 am - 10:05 pm
ATL
-
YOW
10h 54m
1 stop
United Airlines Logo
6:25 am - 12:22 pm
YOW
-
ATL
5h 57m
1 stop
$423United Airlines
Thu, Jul 23 - Fri, Jul 24
Air Canada Logo
7:00 am - 1:10 pm
ATL
-
YOW
6h 10m
1 stop
Air Canada Logo
9:00 am - 2:20 pm
YOW
-
ATL
5h 20m
1 stop
$425Air Canada
Tue, Jul 28 - Wed, Jul 29
United Airlines Logo
2:41 pm - 10:05 pm
ATL
-
YOW
7h 24m
2 stops
United Airlines Logo
7:30 pm - 12:30 am
YOW
-
ATL
5h 00m
1 stop
$429United Airlines
Mon, Aug 10 - Thu, Aug 20
United Airlines Logo
4:25 pm - 10:05 pm
ATL
-
YOW
5h 40m
1 stop
United Airlines Logo
6:00 am - 5:23 pm
YOW
-
ATL
11h 23m
3 stops
$434United Airlines
Tue, Oct 27 - Wed, Oct 28
Air Canada Logo
8:25 am - 3:19 pm
ATL
-
YSB
6h 54m
1 stop
Air Canada Logo
3:55 pm - 9:21 pm
YSB
-
ATL
5h 26m
1 stop
$669Air Canada
Fri, Aug 28 - Sat, Sep 5
Air Canada Logo
7:00 am - 1:45 pm
ATL
-
YSB
6h 45m
1 stop
Air Canada Logo
9:45 am - 2:20 pm
YSB
-
ATL
4h 35m
1 stop
$684Air Canada
Booking Insights

KAYAK's insights & trends for Atlanta to Ontario flights

Get data-powered insights and trends into flights from Atlanta to Ontario to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Atlanta to Region of Ontario?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Atlanta to Region of Ontario departing in August.

What is the cheapest Atlanta to Ontario flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Ontario from Atlanta found in the last 3 days was to Toronto, at $315 round-trip. The most popular route is from Atlanta (ATL) to Toronto Pearson Intl Airport (YYZ), and the cheapest round-trip airline ticket found on this route in the last 3 days was $315.

What is the cheapest time of day to fly to Ontario?

The average price for all round-trip flights from Atlanta to Ontario depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Ontario is generally in the afternoon, when round-trip flights cost $669 on average. Morning departures are around 2% more expensive than evening flights, on average. The most expensive time of day to fly to Ontario is generally in the morning, which is peak travel time and where the average cost of a ticket is $1,043.

Can I save money by flying with a layover from Atlanta to Ontario?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $636 on average.

What is the cheapest month to fly from Atlanta to Ontario?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Atlanta to Ontario, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Atlanta to Ontario is August, when tickets cost $55 (return) on average. On the other hand, the most expensive months are March and February, when the average cost of round-trip tickets is $247 and $241 respectively.

What’s the cheapest day of the week to fly from Atlanta to Ontario?

The average price of all round-trip flights from Atlanta to Ontario clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Ontario on a Thursday, as we generally find the cheapest rates on that day for this route. On the other hand, Monday is the most expensive day to fly from Atlanta to Ontario. For your return ticket, we recommend flying on a Friday and avoiding Sundays for the best deals.

How far in advance should I book a flight from Atlanta to Ontario?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Atlanta to Ontario, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Atlanta to Ontario, you should book around 3 weeks before departure, which saves you about 53% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 13 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$183
Best time to beat the crowds with an average 7% drop in price.
Most popular time to fly and prices are also 5% lower on average.
Flight from Atlanta to Ottawa

FAQs - booking Ontario flights

  • How does KAYAK find such low prices on flights from Atlanta to Ontario?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Atlanta to Ontario.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Atlanta to Ontario?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Atlanta to Ontario is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Atlanta to Ontario?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Atlanta to Ontario with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Atlanta to Ontario?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Atlanta to Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 4 airlines serving from Atlanta to Ontario

 
See real verified KAYAK customer reviews for airlines flying from Atlanta to Ontario. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Atlanta to Ontario? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8412 reviews
8.5Crew
7.8Comfort
7.2Food
8.1Boarding
7.8Entertainment
Airline reviews

No service flight that took 5 hrs and a stop at an unscheduled airport. Crew and pilots did their jobs

6.0 GoodAnonymous, May 2026
ATL - ECP
Read more Delta reviews

No service flight that took 5 hrs and a stop at an unscheduled airport. Crew and pilots did their jobs

The crew were efficient. The pilots seemed professional. It was a bit chilly in our seats. The sheet provided weren’t very helpful.

For some reason, TSA Atlanta didn’t have my bag on the flight on time and they don’t have to provide Delta a reason for that.

Delta does a great job with entertainment and free wifi. I can still be in touch with my colleagues while in the air.

In a world of delays, Delta was on time both ways! Boarding was fast and efficient. Staff was friendly. AND wifi worked.

Everything was great. The only issue is unfixable. Seats are too small. 😁🤪

No entertainment. Plane was so small had to pink tag a carry on ive used for 20 years easily on board. The fact the flight got in at midnight, had to wait for crew in fort wayne to allow the plane to approach the gate, THEN had to wait for bag on jet bridge made experience irritating at best.

Overall Good! The weather delayed our takeoff from Atlanta and our arrival in Miami! If Mother Nature can mess up a flight she will do it every time!

Subpar. The seating on the plane is almost unbearable. We are literally touching and/or sitting on each other which is totally unacceptable and shameful. Pilots and crew was very accommodating and friendly.

During the flight, the only refreshments provided were crackers and soft drinks; no substantial food was offered despite the international route. Furthermore, our initial flight was delayed, causing us to miss the connecting flight in Atlanta. The airline did not hold the connection, and we were informed that the next available flight is not for another 24 hours. While I am aware of alternative options via JetBlue, they operate out of JFK, which is not a viable solution for us as a resident of New Jersey.

These airplanes should be illegal. The seats are two tight, it is a safety issue. Wheelchair support was ridiculously slow. We almost missed our flight.

I felt scammed. The priced advertised was different than what I paid. I paid the whole some online. I then got a call 20 minutes later saying I need to paid 70 more person. She said the price online is not the guaranteed price.

Some crew were unfriendly or in some cases just straight up rude.

Putting people that close to the bathroom, where you have to look into the bathroom as people are exiting and entering was not great and the smell was also not great. I know the airlines are desperate for more chairs, but that seat is a crime.

I had a terrible experience. My flight got delayed from Atlanta to Chicago on Monday April 6, 2026, and that led to me missing my next flight to Brussels. United Airlines didn’t provide me with any accommodation for shelter. I had to sleep at the airport in Chicago. The next flight I was put on didn’t leave until the evening hours of Tuesday 4/7/2026.

one staffer was frustrated (it happen); the flight was late and the pilot mentioned they'll make amend but the snacks were the same, other than that the aircraft was clean and everything went smooth, no complaints

Just a bad day to fly. Flight was delayed from scheduled 6:50 pm departure to 8:50 pm. Combination of factors mostly related to weather at the destination airport (which is where the incoming flight originated) which delayed the inbound flight over an hour. Once on board, we taxied but had to hold again on the taxiway for 10 minutes or so. We did not get wheels up until after 9 pm. The flight was smooth but about 18 minutes from our destination, we had to hold for several minutes more due to weather at ORD. We finally landed at ORD about 11:08 pm (accounting for the time difference, that was about a 3 hour delay from our scheduled departure time). It felt like we were never going to get to our destination. But the flight crew and attendants were very good. The movie selection onboard was also very nice. Got to watch half of a movie just during our taxi from the gate at ATL due to the delay!

ticket agent lady wás very helpful , she arranged wheel chair for my elderly mother

Everything was great except for the boarding process. Everyone is lining up all at the same time and it’s hard to tell between the groups as they are way too large.

Entertainment kept turning itself off. Gave up on watching a movie.

Westjet never disappoint always terrible small plane ,crowded cheap snack if you can call it snack

Westjet was late and we missed our connecting flight with Cathay. Had to wait 8 hours. Westjet only allows 1 checked in baggage for international flights- it’s always been 2. Canada allows only 1 sandwhich bag size full off small liquids. Everything else will be tossed. Awful trip. Will never fly west jet or go to Toronto to connect flights!

I didn’t have any food but my Prosecco hit the spot. We left on time and the crew was friendly.

I thought the coffee was excellent! The wait for the luggage was acceptable.. It left and arrived on time. My son found that his device worked very well and he really enjoyed his flight! The stewardess moved him up to the emergency exit and he very much appreciated that!

I wasn’t able to book or pay for a seat and they forgot to check me in for my third flight so I spent 24 hours in Toronto waiting for another one.

Everything was good except for flight delay, but it was because of the snow storm in the arrival airport.

The flight was cancelled less than 24 hours before departure. The alternate flight was a day later going from Grenada to Toronto to Vancouver to Calgary to Montreal. 2 days in the air. Not serious, Very bad service

I like the wider seats, Plus lots of legroom, Lacking entertainment, no tv or screen to play with

The personal item sizer cannot take a standard backpack, and the cabin luggage sizer cannot take a standard carry-on. Designed for people from the island of Lilliput!!. and also compels people to pay additional fees to check their bags. Making money by ticking off the passengers is a very short-sighted business strategy, especially since they have a choice of carriers

Liked in-flight wifi Did not like - nothing to complain, really. All good

Selected seats 5 months prior to date. Had email confirmation and seats were not honoured. Family did not sit together

They did not let us board because one member needed a transit visa, which was not evident at the time of ticket purchase.

I was charge a baggage checking fee $68!! I volunteered to check my duffle bag which usually goes under my seat!

I did not like anything because the flight was cancelled yesterday and I did not get to arrive on time in Toronto as I was rebooked with another airline. This caused me to be really stressed out as I am an individual with back injury and to be forced to stay longer in an airport to accommodate a change of airline and the transfers associated with it Due to this I am probably not going to book through your website to eliminate this potentially chaos in the future

shittiest airline in the hemisphere. To improve - start thinking you're flying people, not cattle

Easy boarding, inflight refreshments came on time and comfortable seat

It was good that our flight left early. It was a nice smooth flight and landing.

It was a problem because there was a delay where we sat before taking off from newark,then when landed in Toronto we sat on tarmac and they wouldn't let us out for a long period of time. When we finally were released to the airport in Toronto the attendant scanned our boarding pass that we were here for our connection to Brazil. We ran all the way to the gate and they said at the gate the door is shut so we can not let you on the plane. We explained that we were checked in by the attendant when we arrived at Toronto airport to go to Brazil and they should not have shut the door. We were ignored at the gate

Flight home was delayed multiple times, did not get home until 2am

the check-in lady at ORD was extremely rude and unprofessional. very disappointed as it was supposed to be a celebration for my wife's birthday and it really put a damper on things. if i wanted to be treated like trash, i would have flown Economy! (as opposed to business class)

Everything you need to know for your flight from Atlanta to Ontario

Information on your arrival and departure airports