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Cheap flights from Ontario to Atlanta from $76

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Atlanta departing on 4/30. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Ontario to Atlanta

Cheap round-trip flights

KAYAK's recommended round-trip deals from the most popular airlines that fly from Ontario to Atlanta.
Frontier Logo
12:59 am - 5:39 amONT-ATL
25h 40m1 stop
Frontier Logo
8:54 pm - 11:08 pmATL-ONT
29h 14m1 stop
$168Frontier
Find Deal
Fri, May 9 - Tue, May 13
Frontier Logo
1:15 pm - 6:13 amONT-ATL
13h 58m1 stop
Frontier Logo
2:00 pm - 7:24 amATL-ONT
20h 24m1 stop
$177Frontier
Find Deal
Sat, May 10 - Sat, May 17
American Airlines Logo
12:45 pm - 11:52 pmONT-ATL
8h 07m2 stops
American Airlines Logo
7:24 am - 1:52 pmATL-ONT
9h 28m1 stop
$308American Airlines
Find Deal
Tue, May 20 - Wed, May 21
American Airlines Logo
12:59 am - 11:46 amONT-ATL
7h 47m1 stop
American Airlines Logo
6:38 pm - 11:55 pmATL-ONT
8h 17m1 stop
$325American Airlines
Find Deal
Thu, Jul 3 - Mon, Jul 7
Southwest Logo
6:25 pm - 6:15 amONT-ATL
8h 50m1 stop
Southwest Logo
7:40 am - 12:25 pmATL-ONT
7h 45m2 stops
$330Southwest
Find Deal
Fri, Jul 4 - Wed, Jul 9
Southwest Logo
5:25 am - 4:00 pmONT-ATL
7h 35m2 stops
Southwest Logo
7:40 am - 12:25 pmATL-ONT
7h 45m2 stops
$335Southwest
Find Deal
Fri, Jul 4 - Wed, Jul 9
United Airlines Logo
6:32 pm - 6:00 amONT-ATL
8h 28m1 stop
United Airlines Logo
5:59 pm - 10:52 pmATL-ONT
7h 53m1 stop
$343United Airlines
Find Deal
Wed, Jun 18 - Mon, Jun 30
United Airlines Logo
6:00 am - 3:17 pmONT-ATL
6h 17m1 stop
United Airlines Logo
5:30 am - 12:31 pmATL-ONT
10h 01m2 stops
$348United Airlines
Find Deal
Wed, Jun 4 - Tue, Jun 10
Delta Logo
7:05 am - 2:20 pmONT-ATL
4h 15mnonstop
Delta Logo
8:59 pm - 10:25 pmATL-ONT
4h 26mnonstop
$399Delta
Find Deal
Tue, Jun 10 - Wed, Jun 18
Delta Logo
2:35 pm - 5:28 amONT-ATL
11h 53m1 stop
Delta Logo
8:59 pm - 10:25 pmATL-ONT
4h 26mnonstop
$411Delta
Find Deal
Wed, Jun 11 - Tue, Jun 17

Frontier flights from Ontario to Atlanta

Our best Frontier deals on Ontario to Atlanta flight tickets
Frontier
May 9
ONT12:59 amOntario
25h 40m
1 stop
ATL5:39 amAtlanta Hartsfield-Jackson
May 13
ATL8:54 pmAtlanta Hartsfield-Jackson
29h 14m
1 stop
ONT11:08 pmOntario
Frontier
May 10
ONT1:15 pmOntario
13h 58m
1 stop
ATL6:13 amAtlanta Hartsfield-Jackson
May 17
ATL2:00 pmAtlanta Hartsfield-Jackson
20h 24m
1 stop
ONT7:24 amOntario
Frontier
May 10
ONT6:47 pmOntario
11h 50m
1 stop
ATL9:37 amAtlanta Hartsfield-Jackson
May 17
ATL2:00 pmAtlanta Hartsfield-Jackson
20h 24m
1 stop
ONT7:24 amOntario

American Airlines flights from Ontario to Atlanta

Our best American Airlines deals on Ontario to Atlanta flight tickets
American Airlines
May 20
ONT12:45 pmOntario
8h 07m
2 stops
ATL11:52 pmAtlanta Hartsfield-Jackson
May 21
ATL7:24 amAtlanta Hartsfield-Jackson
9h 28m
1 stop
ONT1:52 pmOntario
American Airlines
Jul 3
ONT12:59 amOntario
7h 47m
1 stop
ATL11:46 amAtlanta Hartsfield-Jackson
Jul 7
ATL6:38 pmAtlanta Hartsfield-Jackson
8h 17m
1 stop
ONT11:55 pmOntario
American Airlines
May 14
ONT6:01 amOntario
8h 39m
2 stops
ATL5:40 pmAtlanta Hartsfield-Jackson
May 21
ATL12:24 pmAtlanta Hartsfield-Jackson
8h 59m
2 stops
ONT6:23 pmOntario

See travel insights to Atlanta from

How to get the cheapest flight ticket from Ontario to Atlanta

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Atlanta?

The month of September is, on average, the cheapest month to fly to Atlanta from Ontario, with most prices found around $329. If you aren’t able to travel to Atlanta during the month of September, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $342.

What is the cheapest day to depart on your flight to Atlanta?

Our data shows that Wednesday is the least expensive day to fly to Atlanta. Tickets to fly out on this day can be as low as $395. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Atlanta on Sunday is $517.

What is the cheapest time of day to depart on your flight to Atlanta?

The cheapest time of day to fly to Atlanta is in the evening when flights can be purchased for as low as $344. Flights to Atlanta are more costly in the morning, with an average ticket price of $481. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Ontario to Atlanta Hartsfield-Jackson flight route?

Fly from Ontario to Atlanta Hartsfield-Jackson for the best Ontario - Atlanta Hartsfield-Jackson flight prices

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

You are more likely to see cheaper flights to Atlanta from Ontario when booking 3 weeks ahead of your departure date. In general, you can expect to find flights to Atlanta for around $400 when searching 3 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Atlanta from Ontario for as low as $325 on momondo.

What cabin class options are available on Ontario to Atlanta Hartsfield-Jackson flights?

There are 4 cabin classes available to choose from on Ontario to Atlanta Hartsfield-Jackson flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Ontario to Atlanta flight prices changed over time?

As of April 2025, prices for Ontario to Atlanta flights are approximately 7% cheaper when compared to flights at the same time last year.

When to book flights from Ontario to Atlanta

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Atlanta according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Ontario to Atlanta (ONT to ATL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Atlanta

Best Price Found

$76

Fastest flight time

4h 11m

Direct flights

Mon, Tue, Wed, Thu, Fri and Sat

Airports in Atlanta

1 airport
The best one-way flight to Atlanta from Ontario in the past 72 hours is $76. The best round-trip flight deal from Ontario to Atlanta found on momondo in the last 72 hours is $168.
The fastest flight from Ontario to Atlanta takes 4h 11m
Direct flights go from Ontario to Atlanta on Monday, Tuesday, Wednesday, Thursday, Friday and Saturday. The only airline offering direct flights is Delta.
There is 1 airport near Atlanta: Atlanta Hartsfield-Jackson (ATL)

  • How far is Ontario to Atlanta Hartsfield-Jackson by plane?

    A flight from Ontario to Atlanta Hartsfield-Jackson will travel around 1897.6 mi. Flights usually cover this in 4h 11m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Ontario Airport to Atlanta Hartsfield-Jackson Airport?

    Prices for flights from Ontario Airport to Atlanta Hartsfield-Jackson Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Ontario Airport to Atlanta Hartsfield-Jackson Airport?

  • How old do you have to be to fly from Ontario Airport to Atlanta Hartsfield-Jackson Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Atlanta Hartsfield-Jackson Airport.

  • What documentation or ID do you need to fly to Atlanta Hartsfield-Jackson Airport?

    The required travel and health documents for your Atlanta Hartsfield-Jackson Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Atlanta Hartsfield-Jackson Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Ontario to Atlanta?

  • What is the most popular airline from Ontario to Atlanta?


Best airlines flying from Ontario to Atlanta

Compare and see reviews for airlines that fly from Ontario to Atlanta with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $111Free CancellationRating
6.3
7,940 reviews
Search Spirit Airlines flights
FrontierPriceFrom $144Free CancellationRating
5.9
3,283 reviews
Search Frontier flights
DeltaPriceFrom $259Free CancellationRating
8.0
7,920 reviews
Search Delta flights
American AirlinesPriceFrom $264Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $296Free CancellationRating
7.4
8,685 reviews
Search United Airlines flights
SouthwestPriceFrom $343Free CancellationRating
8.0
4,287 reviews
Search Southwest flights
  • Delta Flights From Ontario to Atlanta

    Delta operates around 20 flights from Ontario to Atlanta every week. The average price of these flights found in the last 72 hours has been $503, but momondo users have found Delta deals from Ontario to Atlanta from as low as $259 round-trip. Delta has been scored 8.0/10 in 7,920 reviews.


Traveling to a place near Atlanta?

Book flights to Atlanta if you plan to visit one of these locations
Helen
Marietta
Duluth
McDonough
Blue Ridge
Warner Robins
Stone Mountain
Norcross
Athens
Lawrenceville
Dahlonega
College Park
Cartersville
Auburn
Conyers
La Grange
Gadsden
Covington
Gainesville
Douglasville

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Atlanta?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Ontario to Atlanta. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Ontario to Atlanta with flexible booking policies on momondo?

momondo does allow users to show only those flights to Atlanta from Ontario which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Ontario to Atlanta?

momondo provides multiple filters to help you find the best flight to Atlanta from Ontario. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Ontario to Atlanta right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Atlanta, momondo offers a useful price alert feature which will track prices for flights to Atlanta from Ontario and alert you when they change.


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Mon 5/5

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