$71 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 4/9. 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
Travelers love KAYAK
41.299.237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Booking Insights
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$262
Ottawa
Ottawa1 stop$259
Sudbury
Sudbury1 stop$584
Toronto
Toronto1 stop$262
Ottawa
Ottawa1 stop$259
Sudbury
Sudbury1 stop$584

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

Tue, Apr 21 - Mon, Apr 27
Multiple Airlines Logo
3:31 pm - 4:30 pm
ATL
-
YUL
24h 59m
2 stops
Multiple Airlines Logo
8:00 am - 8:17 am
YUL
-
ATL
24h 17m
1 stop
$249Multiple Airlines
Thu, Mar 12 - Tue, Mar 17
Multiple Airlines Logo
7:53 am - 12:25 am
ATL
-
YOW
16h 32m
1 stop
Multiple Airlines Logo
4:15 pm - 12:33 am
YOW
-
ATL
8h 18m
1 stop
$259Multiple Airlines
Fri, Apr 10 - Fri, Apr 17
Multiple Airlines Logo
4:39 pm - 12:25 am
ATL
-
YOW
7h 46m
1 stop
Multiple Airlines Logo
3:55 pm - 11:27 pm
YOW
-
ATL
7h 32m
1 stop
$261Multiple Airlines
Thu, Mar 19 - Mon, Mar 23
Air Canada Logo
6:10 am - 7:24 pm
ATL
-
YSB
13h 14m
1 stop
Air Canada Logo
3:55 pm - 9:56 pm
YSB
-
ATL
6h 01m
1 stop
$584Air Canada
Thu, Mar 19 - Mon, Mar 23
Air Canada Logo
6:10 am - 7:24 pm
ATL
-
YSB
13h 14m
1 stop
Air Canada Logo
9:45 am - 10:06 pm
YSB
-
ATL
12h 21m
2 stops
$593Air Canada
Wed, Apr 8 - Wed, Apr 15
Air Canada Logo
1:10 pm - 7:21 pm
ATL
-
YSB
6h 11m
1 stop
Air Canada Logo
3:55 pm - 9:42 pm
YSB
-
ATL
5h 47m
1 stop
$609Air Canada
Wed, Apr 8 - Wed, Apr 15
Air Canada Logo
1:10 pm - 7:21 pm
ATL
-
YSB
6h 11m
1 stop
Air Canada Logo
9:45 am - 9:59 pm
YSB
-
ATL
12h 14m
2 stops
$618Air Canada
Wed, Jul 1 - Sat, Jul 18
United Airlines Logo
7:00 am - 1:45 pm
ATL
-
YSB
6h 45m
1 stop
United Airlines Logo
9:45 am - 2:20 pm
YSB
-
ATL
4h 35m
1 stop
$635United Airlines
Wed, Jul 1 - Sat, Jul 18
United Airlines Logo
8:00 am - 7:17 pm
ATL
-
YSB
11h 17m
2 stops
United Airlines Logo
2:25 pm - 9:15 pm
YSB
-
ATL
6h 50m
1 stop
$644United Airlines
Wed, Jul 1 - Sat, Jul 18
United Airlines Logo
5:30 am - 1:45 pm
ATL
-
YSB
8h 15m
2 stops
United Airlines Logo
9:45 am - 2:20 pm
YSB
-
ATL
4h 35m
1 stop
$645United Airlines
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.

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 72 hours was to Toronto, at $369 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 72 hours was $369.

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.

No, with an average price for the route of $651, prices are generally cheapest when you fly direct.

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 November, when tickets cost $493 (return) on average. On the other hand, the most expensive months are August and January, when the average cost of round-trip tickets is $668 and $662 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 Wednesday, 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 57% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 10 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$71
Best time to beat the crowds with an average 12% drop in price.
Most popular time to fly with an average 7% increase in price.
Flight from Atlanta to Toronto Pearson Airport

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.

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

    The cheapest time of day to fly to Ontario is generally at night, when round-trip flights cost $636 on average. Morning departures are around 1% 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 $957.

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 8237 reviews
8.1Boarding
7.8Entertainment
7.9Comfort
7.2Food
8.5Crew
Airline reviews

We waited an hour on the runway to get a gate in Orlando

2.0 MediocreJason, Feb 2026
ATL - MCO
Read more Delta reviews

We waited an hour on the runway to get a gate in Orlando

The staff on board and gate was nice - a welcome change from the usual. We also arrived early, which was a great benefit, given that it takes 30 minutes plus to get bags at SRQ.

Never got on it. Was re-routed through Detroit and am still in airports 12 hours later waiting for my connecting plane to arrive.

The landing was the worst I’ve experienced with a flight.

Smallest leg room I've ever had on a plane.

They took all carry-on luggage from Groups 6 -9 - I was group 5 and waiting in line to board - they made me check my luggage too. That then went to baggage claim and delayed departure from the airport. There was overhead room in my seating area - Delta over reacted. Also, had a gentleman next to me that took up 1/2 my seat.

The gate agent was most helpful in getting me on to fly standby. I greatly appreciate it.

Sorry I didn't realize I was writing a review for each leg. Please see my previous review - it applies to the entire flight, not just a single leg.

Only freetext wifi was available in flight; browsing WiFi required payment. Since the seats had no in flight entertainment, Delta should revisit this policy on this longer flight.

Very large passenger too space from my own seat. Arm board couldn’t be lowered because of his size. It wads very uncomfortable trip, as the flight was full couldn’t move anywhere having back pain because of the position in which I was the entire flight.

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.

Wifi took a while to kick in and we had a maintenance issue that took over 40 mins at the gate in Washington before pulling back

Not United Airlines' fault. It's ORL airport's fault.

Gate agent at Frankfurt was terrible. She denied PRE boarding even as it was printed on the boarding pass. Refused to look at the boarding pass and literally shouting for no reason. Frankfurt airport has horrible and rude staff who avoids trying to answer any question at all. Overall, horrible experience.

United overall experience is great these days. Airport experience was very organized. Staff on flight were great. App and information as good as it gets.

Very nice flight love the small aircraft. We had a wonderful flight attendant. Nice to see someone that really enjoys her job. Don't have her name but had a southern accent.

Seats in waiting area and on plane hard as rock. Fast internet on the flight was great! Crew was kind.

Not the fault of United—weather, reroute around weather, time sitting on tarmac, arrived couple hours late, too late for train into city necessitating a much pricier cab but weather…can’t be helped.

Flight was good but there are way to many announcements for credit cards etc.

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

We got delayed to the point of having a 20 hour layover. That is absurd. I couldn’t believe it. I’m furious.

The keg from Edmonton to Toronto My wife found it very cold. Other than that great flight.

Missed the connection due to previous flight delay. Can't rate a flight I was not on

Smooth flight Staff were courteous and welcoming upon entering and exiting the plane Pilot and crew provided frequent updates Leg space was not pleasant but manageable

Everything was good except I was a bit disappointed that I had to pay US $150 for bags.

The last 3 hours it was freezing cold in row 56. Multiple people had their winter coats on and were utilizing the blankets provided by the airline. I also did not have easy access to figure out how to book my food allergy and advance for my meals. Most of everything I received was something I couldn't eat. This needs to be made more accessible. Also, I'm 5'10 which is the average height of the American male. I flew from Philadelphia to Toronto and then to Tokyo and the seats were absolutely unbearable. For that long of a flight it is impossible to get comfortable when doing anything. Flights need to have more space and stop prioritizing costs over people.

Was delayed at every point/ connection. Luggages missing for 5days. Had no medications for diabetes and high B/p. when bags where finally delivered on the 30th, the insulin and ozempic were no longer patent, as the ice pack had since dissolved and the authenticity of the med is now questionable, since they must be refrigerated. Please have them refund my bag fees. I should sue them for all the inconveniences caused to me.

The plane was delayed substantially due to a mechanical problem, that being said, the airline was very fair with providing a meal coupon for us. I would rather arrive late on a mechanically sound plane than the alternative. The food served in the plane was just awful, however and I recommend a new catering company.

I waiting for 2 hrs to retrieve my luggage. Didn't get home till 3am.

The flight left late and I didn’t get a glass of bubbly upon boarding (which I’m used to when booking business class on other flights), but otherwise it was a pleasant flight with lovely, helpful crew members and I enjoyed my meal.

Flight was canceled for a reason they knew hours before but did not mention. Next the gate chnage from 37 to 38 at least 10 times. Ridiculous.

It was just fine. I managed to make all my connection too sbut had trouble in Munich with no wheel chair and trouble trying to get help from the airport people to get to the other terminal for my flight. Finally a wonderful lady Amelia, helped me to make my flight connection Timon with zero time to spare.

Super experience. Earlier than schedule departure and arrival. Baggage handling was very good

I would like to get my money back. I flight was 4 hours late on the way to detroit, And same on my way back to Brussels they cancelled my flight and give me an other ticket and i had to wait 5 hours.

All attendents were very efficient, pleasant and happy. Everything went smoothly. The seats could have been wider. There could have been more free food instead of just one small bar.

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

Information on your arrival and departure airports