Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Ontario to Atlanta from $103

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 4/28. 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

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.
Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.
Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.
Price Alerts
Price Alerts
Not ready to book? to track prices.

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.
6:47 pm - 5:00 amONT-ATL
7h 13m1 stop
5:08 pm - 9:23 pmATL-ONT
7h 15m1 stop
$235Frontier
Find Deal
Sat, Apr 19 - Sat, Apr 26
2:43 pm - 5:59 amONT-ATL
12h 16m1 stop
7:15 am - 1:42 pmATL-ONT
9h 27m1 stop
$238Frontier
Find Deal
Mon, Apr 21 - Mon, Apr 28
5:45 am - 4:50 pmONT-ATL
8h 05m2 stops
10:10 am - 4:10 pmATL-ONT
9h 00m1 stop
$348Southwest
Find Deal
Thu, Apr 17 - Mon, Apr 21
5:45 am - 4:50 pmONT-ATL
8h 05m2 stops
5:55 pm - 11:00 pmATL-ONT
8h 05m2 stops
$353Southwest
Find Deal
Thu, Apr 17 - Mon, Apr 21
5:05 am - 6:02 pmONT-ATL
9h 57m2 stops
4:31 pm - 8:53 pmATL-ONT
7h 22m1 stop
$373United Airlines
Find Deal
Tue, May 6 - Fri, May 9
5:05 am - 6:02 pmONT-ATL
9h 57m2 stops
12:35 pm - 8:53 pmATL-ONT
11h 18m2 stops
$378United Airlines
Find Deal
Tue, May 6 - Fri, May 9
12:55 pm - 10:09 pmONT-ATL
6h 14m1 stop
8:23 pm - 11:59 pmATL-ONT
6h 36m1 stop
$380American Airlines
Find Deal
Thu, Jun 12 - Sun, Jun 22
1:14 pm - 11:51 pmONT-ATL
7h 37m2 stops
4:25 pm - 9:58 pmATL-ONT
8h 33m1 stop
$385American Airlines
Find Deal
Wed, May 21 - Sat, May 24
10:15 pm - 5:20 amONT-ATL
4h 05mnonstop
9:20 am - 10:57 amATL-ONT
4h 37mnonstop
$399Delta
Find Deal
Thu, May 1 - Sat, May 3
7:00 am - 2:08 pmONT-ATL
4h 08mnonstop
9:20 am - 10:57 amATL-ONT
4h 37mnonstop
$449Delta
Find Deal
Wed, Apr 16 - Wed, Apr 30

Southwest flights from Ontario to Atlanta

Our best Southwest deals on Ontario to Atlanta flight tickets
Southwest
Apr 17
ONT5:45 amOntario
8h 05m
2 stops
ATL4:50 pmAtlanta Hartsfield-Jackson
Apr 21
ATL10:10 amAtlanta Hartsfield-Jackson
9h 00m
1 stop
ONT4:10 pmOntario
Southwest
Apr 17
ONT5:45 amOntario
8h 05m
2 stops
ATL4:50 pmAtlanta Hartsfield-Jackson
Apr 21
ATL5:55 pmAtlanta Hartsfield-Jackson
8h 05m
2 stops
ONT11:00 pmOntario
Southwest
May 28
ONT8:45 pmOntario
6h 00m
1 stop
ATL5:45 amAtlanta Hartsfield-Jackson
May 30
ATL6:05 amAtlanta Hartsfield-Jackson
7h 55m
2 stops
ONT11:00 amOntario

American Airlines flights from Ontario to Atlanta

Our best American Airlines deals on Ontario to Atlanta flight tickets
American Airlines
Jun 12
ONT12:55 pmOntario
6h 14m
1 stop
ATL10:09 pmAtlanta Hartsfield-Jackson
Jun 22
ATL8:23 pmAtlanta Hartsfield-Jackson
6h 36m
1 stop
ONT11:59 pmOntario
American Airlines
May 21
ONT1:14 pmOntario
7h 37m
2 stops
ATL11:51 pmAtlanta Hartsfield-Jackson
May 24
ATL4:25 pmAtlanta Hartsfield-Jackson
8h 33m
1 stop
ONT9:58 pmOntario
American Airlines
May 21
ONT1:14 pmOntario
7h 37m
2 stops
ATL11:51 pmAtlanta Hartsfield-Jackson
May 24
ATL11:04 amAtlanta Hartsfield-Jackson
10h 32m
2 stops
ONT6:36 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 August is also cheap. Prices for this month can be found on momondo for an average of $348.

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 $397. 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 $518.

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 $345. Flights to Atlanta are more costly in the morning, with an average ticket price of $482. 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 $406 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 $313 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 March 2025, prices for Ontario to Atlanta flights are approximately 15% more expensive 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

$103

Fastest flight time

4h 05m

Direct flights

Every day

Airports in Atlanta

1 airport
The best one-way flight to Atlanta from Ontario in the past 72 hours is $103. The best round-trip flight deal from Ontario to Atlanta found on momondo in the last 72 hours is $235.
The fastest flight from Ontario to Atlanta takes 4h 05m
Direct flights go from Ontario to Atlanta every day.
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 05m, 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
FrontierPriceFrom $132Free CancellationRating
6.0
3,271 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $134Free CancellationRating
6.3
7,882 reviews
Search Spirit Airlines flights
DeltaPriceFrom $259Free CancellationRating
8.0
7,895 reviews
Search Delta flights
American AirlinesPriceFrom $279Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $296Free CancellationRating
7.4
8,603 reviews
Search United Airlines flights
SouthwestPriceFrom $333Free CancellationRating
8.0
4,274 reviews
Search Southwest flights
  • Delta Flights From Ontario to Atlanta

    Delta operates around 7 flights from Ontario to Atlanta every week. The average price of these flights found in the last 72 hours has been $523, 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 7,895 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
Lawrenceville
Athens
College Park
Dahlonega
Cartersville
Conyers
Auburn
Gainesville
La Grange
Douglasville
Gadsden
Covington

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.


An easier way to manage your Atlanta trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
From?
To?
Wed 4/2
Wed 4/9

Find better results for your trip to the United States