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Cheap flights from Ontario to Atlanta from $68

1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Ontario to Atlanta

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
6:00 am - 6:02 pmONT  Ontario-ATL Atlanta Hartsfield-Jackson
9h 02m2 stops Denver Intl Dallas/Fort Worth
Frontier Logo
5:19 am - 6:31 pmATL  Atlanta Hartsfield-Jackson-ONT Ontario
16h 12m2 stops Dallas/Fort Worth Las Vegas Harry Reid Intl
$317Frontier
Wed, Dec 9 - Mon, Dec 14
Frontier Logo
8:56 am - 3:24 pmONT  Ontario-ATL Atlanta Hartsfield-Jackson
27h 28m1 stop Las Vegas Harry Reid Intl
Frontier Logo
8:40 pm - 7:07 amATL  Atlanta Hartsfield-Jackson-ONT Ontario
13h 27m1 stop Las Vegas Harry Reid Intl
$321Frontier
Tue, Dec 22 - Tue, Dec 29
Multiple Airlines Logo
5:36 pm - 3:08 pmONT  Ontario-ATL Atlanta Hartsfield-Jackson
18h 32m2 stops Boise Air Term. Gowen Fld Portland
Multiple Airlines Logo
6:21 pm - 10:17 pmATL  Atlanta Hartsfield-Jackson-ONT Ontario
6h 56m1 stop Denver Intl
$380Multiple Airlines
Sun, Dec 6 - Tue, Dec 15
Multiple Airlines Logo
5:36 pm - 3:08 pmONT  Ontario-ATL Atlanta Hartsfield-Jackson
18h 32m2 stops Boise Air Term. Gowen Fld Portland
Multiple Airlines Logo
6:21 pm - 10:17 pmATL  Atlanta Hartsfield-Jackson-ONT Ontario
6h 56m1 stop Denver Intl
$383Multiple Airlines
Sun, Dec 6 - Wed, Dec 9
Southwest Logo
5:40 am - 4:30 pmONT  Ontario-ATL Atlanta Hartsfield-Jackson
7h 50m2 stops Las Vegas Harry Reid Intl Denver Intl
Southwest Logo
2:05 pm - 7:40 pmATL  Atlanta Hartsfield-Jackson-ONT Ontario
8h 35m2 stops Chicago Midway Las Vegas Harry Reid Intl
$468Southwest
Sat, Feb 6 - Wed, Mar 31
Southwest Logo
5:10 am - 2:00 pmONT  Ontario-ATL Atlanta Hartsfield-Jackson
5h 50m1 stop Phoenix Sky Harbor Intl
Southwest Logo
4:55 pm - 8:40 pmATL  Atlanta Hartsfield-Jackson-ONT Ontario
6h 45m1 stop Las Vegas Harry Reid Intl
$469Southwest
Wed, Dec 30 - Fri, Jan 1
Delta Logo
7:05 am - 2:10 pmONT  Ontario-ATL Atlanta Hartsfield-Jackson
4h 05mnonstop
Delta Logo
8:15 am - 10:04 amATL  Atlanta Hartsfield-Jackson-ONT Ontario
4h 49mnonstop
$516Delta
Thu, Dec 17 - Fri, Dec 25
Delta Logo
12:20 pm - 7:29 pmONT  Ontario-ATL Atlanta Hartsfield-Jackson
4h 09mnonstop
Delta Logo
8:15 am - 10:04 amATL  Atlanta Hartsfield-Jackson-ONT Ontario
4h 49mnonstop
$519Delta
Wed, Dec 16 - Fri, Jan 1
American Airlines Logo
5:44 am - 11:51 pmONT  Ontario-ATL Atlanta Hartsfield-Jackson
15h 07m1 stop Dallas/Fort Worth
American Airlines Logo
10:57 am - 6:46 pmATL  Atlanta Hartsfield-Jackson-ONT Ontario
10h 49m2 stops Dallas/Fort Worth Phoenix Sky Harbor Intl
$526American Airlines
Thu, Dec 24 - Fri, Jan 1
American Airlines Logo
5:44 am - 4:28 pmONT  Ontario-ATL Atlanta Hartsfield-Jackson
7h 44m1 stop Dallas/Fort Worth
American Airlines Logo
7:00 am - 7:21 pmATL  Atlanta Hartsfield-Jackson-ONT Ontario
15h 21m2 stops Dallas/Fort Worth Phoenix Sky Harbor Intl
$526American Airlines
Sun, Dec 20 - Thu, Dec 31

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Frontier flights from Ontario to Atlanta

Our best Frontier deals on Ontario to Atlanta flight tickets
Frontier
Dec 9
ONT6:00 amOntario
9h 02m
2 stops
ATL6:02 pmAtlanta Hartsfield-Jackson
Dec 14
ATL5:19 amAtlanta Hartsfield-Jackson
16h 12m
2 stops
ONT6:31 pmOntario
$317
Frontier
Dec 22
ONT8:56 amOntario
27h 28m
1 stop
ATL3:24 pmAtlanta Hartsfield-Jackson
Dec 29
ATL8:40 pmAtlanta Hartsfield-Jackson
13h 27m
1 stop
ONT7:07 amOntario
$321
Frontier
Nov 27
ONT8:15 amOntario
13h 06m
2 stops
ATL12:21 amAtlanta Hartsfield-Jackson
Dec 4
ATL9:40 amAtlanta Hartsfield-Jackson
29h 11m
1 stop
ONT11:51 amOntario
$322

momondo Fare Finder

 
Use the filters below to find and compare flights from Ontario to Atlanta that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioAtlanta

ONT Ontario - ATL Atlanta Hartsfield-Jackson

ONTATL

Ontario

Wed 12/9

6:00 am-6:02 pm

2 stops9h 02m

Atlanta Hartsfield-Jackson

Mon 12/14

5:19 am-6:31 pm

2 stops16h 12m

$317

OntarioAtlanta

ONT Ontario - ATL Atlanta Hartsfield-Jackson

ONTATL

Ontario

Tue 12/22

8:56 am-3:24 pm

1 stop27h 28m

Atlanta Hartsfield-Jackson

Tue 12/29

8:40 pm-7:07 am

1 stop13h 27m

$321

OntarioAtlanta

ONT Ontario - ATL Atlanta Hartsfield-Jackson

ONTATL

Ontario

Sun 12/6

5:36 pm-3:08 pm

2 stops18h 32m

Atlanta Hartsfield-Jackson

Tue 12/15

6:21 pm-10:17 pm

1 stop6h 56m

$380

OntarioAtlanta

ONT Ontario - ATL Atlanta Hartsfield-Jackson

ONTATL

Ontario

Sun 12/6

5:36 pm-3:08 pm

2 stops18h 32m

Atlanta Hartsfield-Jackson

Wed 12/9

6:21 pm-10:17 pm

1 stop6h 56m

$383

OntarioAtlanta

ONT Ontario - ATL Atlanta Hartsfield-Jackson

ONTATL

Ontario

Sat 2/6

5:40 am-4:30 pm

2 stops7h 50m

Atlanta Hartsfield-Jackson

Wed 3/31

2:05 pm-7:40 pm

2 stops8h 35m

$468

OntarioAtlanta

ONT Ontario - ATL Atlanta Hartsfield-Jackson

ONTATL

Ontario

Wed 12/30

5:10 am-2:00 pm

1 stop5h 50m

Atlanta Hartsfield-Jackson

Fri 1/1

4:55 pm-8:40 pm

1 stop6h 45m

$469
Quickest round-trip

OntarioAtlanta

ONT Ontario - ATL Atlanta Hartsfield-Jackson

ONTATL

Ontario

Thu 12/17

7:05 am-2:10 pm

Nonstop4h 05m

Atlanta Hartsfield-Jackson

Fri 12/25

8:15 am-10:04 am

Nonstop4h 49m

$516

OntarioAtlanta

ONT Ontario - ATL Atlanta Hartsfield-Jackson

ONTATL

Ontario

Wed 12/16

12:20 pm-7:29 pm

Nonstop4h 09m

Atlanta Hartsfield-Jackson

Fri 1/1

8:15 am-10:04 am

Nonstop4h 49m

$519

OntarioAtlanta

ONT Ontario - ATL Atlanta Hartsfield-Jackson

ONTATL

Ontario

Thu 12/24

5:44 am-11:51 pm

1 stop15h 07m

Atlanta Hartsfield-Jackson

Fri 1/1

10:57 am-6:46 pm

2 stops10h 49m

$526

OntarioAtlanta

ONT Ontario - ATL Atlanta Hartsfield-Jackson

ONTATL

Ontario

Sun 12/20

5:44 am-4:28 pm

1 stop7h 44m

Atlanta Hartsfield-Jackson

Thu 12/31

7:00 am-7:21 pm

2 stops15h 21m

$526

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 typical price of a round-trip flight between Ontario and Atlanta?

Prices are currently low for flights on this route.

Typical prices usually range from $407 to $639.
The lowest price recently found on this route was $317.

What is the cheapest month to fly to Atlanta?

The month of February is, on average, the cheapest month to fly to Atlanta from Ontario, with most prices found around $384. If you aren’t able to travel to Atlanta during the month of February, then flying in August is also cheap. Prices for this month can be found on momondo for an average of $454.

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

Our data shows that Tuesday is the least expensive day to fly to Atlanta. Tickets to fly out on this day can be as low as $449. 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 $574.

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

The cheapest time of day to fly to Atlanta is at noon when flights can be purchased for as low as $402. Flights to Atlanta are more costly in the morning, with an average ticket price of $542. 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 from Ontario to Atlanta?

You are more likely to see cheaper flights to Atlanta from Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to Atlanta for around $486 when searching 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 $383 on momondo.

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

There are 4 cabin classes available to choose from on Ontario to Atlanta 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 November 2026, prices for Ontario to Atlanta flights are approximately 52% 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

$68

Fastest flight time

3h 57m

Direct flights

Every day

Airports in Atlanta

1 airport
The best one-way flight to Atlanta from Ontario in the past 72 hours is $68. The best round-trip flight deal from Ontario to Atlanta found on momondo in the last 72 hours is $317.
The fastest flight from Ontario to Atlanta takes 3h 57m
Direct flights go from Ontario to Atlanta every day.
There is 1 airport in Atlanta. From Ontario there are direct flights to Atlanta Hartsfield-Jackson (ATL).
Search flight deals

Frequently asked questions about flying from Ontario to Atlanta

  • 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 3h 57m, 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 $185Free CancellationRating
5.5
2,507 reviews
Search Frontier flights
American AirlinesPriceFrom $230Free CancellationRating
7.0
12,227 reviews
Search American Airlines flights
SouthwestPriceFrom $343Free CancellationRating
8.0
4,218 reviews
Search Southwest flights
United AirlinesPriceFrom $377Free CancellationRating
7.3
10,472 reviews
Search United Airlines flights
JetBluePriceFrom $378Free CancellationRating
7.1
3,064 reviews
Search JetBlue flights
DeltaPriceFrom $399Free CancellationRating
7.8
8,699 reviews
Search Delta flights

  • Delta Flights From Ontario to Atlanta

    Delta operates around 6 flights from Ontario to Atlanta every week. The average price of these flights found in the last 72 hours has been $577, but momondo users have found Delta deals from Ontario to Atlanta from as low as $399 round-trip. Delta has been scored 7.8/10 in 8,700 reviews.

Traveling to a place near Atlanta?

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

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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