How many flights depart from Ontario to Atlanta on average per week?

60 flights are operational weekly from Ontario to Atlanta as of June 2026. The most popular departure day for this route is Wed, with 25% of flights per week taking off on this day.

What is the cheapest airline that flies from Ontario to Atlanta Hartsfield-Jackson?

JetBlue, Alaska Airlines, and Southwest are the most popular carriers operating from Ontario to Atlanta Hartsfield-Jackson

How many flights depart from Ontario to Atlanta on average per day?

The number of flights available between Ontario and Atlanta is 8 per day as of June 2026. The most frequent departure time is 12:00PM, with 40% of daily flights leaving in the afternoon.

What airlines fly to Atlanta?

Frontier, Delta and American Airlines are the top three most popular airlines that fly to Atlanta from Ontario according to our data. Frontier is the first choice among our users, with 40% of people opting to fly with this airline when traveling to Atlanta. Keep in mind that there are 7 different airlines that fly to Atlanta on a routine basis, so you have a few additional options to choose from.

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?

As of June 2026, there are 5 operators available to choose from 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.

$63 Cheap Flights from Ontario to Atlanta in 2026

Q: 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 $579 to $291. The lowest price recently found on this route was $285.

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Find the cheapest flights from Ontario to Atlanta

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

10:50 am - 11:38 am

ONT

ATL

21h 48m

1 stop

6:03 am - 5:52 pm

ATL

ONT

14h 49m

1 stop

$285Frontier

Thu, Aug 20 - Mon, Aug 24

3:34 pm - 6:57 am

ONT

ATL

12h 23m

1 stop

11:14 am - 7:51 pm

ATL

ONT

11h 37m

1 stop

$286Frontier

Wed, Jun 24 - Sat, Jul 4

8:17 am - 7:50 pm

ONT

ATL

8h 33m

1 stop

6:03 am - 5:52 pm

ATL

ONT

14h 49m

1 stop

$287Frontier

Mon, Aug 10 - Wed, Aug 19

5:43 pm - 10:01 am

ONT

ATL

13h 18m

1 stop

11:14 am - 3:08 pm

ATL

ONT

6h 54m

1 stop

$288Frontier

Wed, Jul 1 - Sat, Jul 4

11:58 am - 6:55 am

ONT

ATL

15h 57m

1 stop

7:11 pm - 3:08 pm

ATL

ONT

22h 57m

1 stop

$290Frontier

Sat, Jun 20 - Tue, Jun 23

8:17 am - 7:50 pm

ONT

ATL

8h 33m

1 stop

7:40 am - 11:50 pm

ATL

ONT

19h 10m

1 stop

$291Frontier

Fri, Aug 7 - Sat, Aug 15

8:17 am - 7:50 pm

ONT

ATL

8h 33m

1 stop

7:11 pm - 3:14 pm

ATL

ONT

23h 03m

1 stop

$292Frontier

Sun, Jul 26 - Tue, Jul 28

5:43 pm - 10:01 am

ONT

ATL

13h 18m

1 stop

9:25 pm - 7:32 am

ATL

ONT

13h 07m

1 stop

$293Frontier

Wed, Jul 1 - Sat, Jul 11

11:58 am - 6:55 am

ONT

ATL

15h 57m

1 stop

7:11 pm - 3:08 pm

ATL

ONT

22h 57m

1 stop

$294Frontier

Thu, Jun 25 - Mon, Jun 29

6:00 am - 5:02 am

ONT

ATL

20h 02m

1 stop

7:40 am - 10:05 am

ATL

ONT

29h 25m

1 stop

$295Frontier

Sat, Jun 20 - Sat, Jun 27

Frontier flights from Ontario to Atlanta

Our best Frontier deals on Ontario to Atlanta flight tickets

Frontier

Aug 20

ONT10:50 amOntario

21h 48m

1 stop

ATL11:38 amAtlanta Hartsfield-Jackson

Aug 24

ATL6:03 amAtlanta Hartsfield-Jackson

14h 49m

1 stop

ONT5:52 pmOntario

$285

Frontier

Jun 24

ONT3:34 pmOntario

12h 23m

1 stop

ATL6:57 amAtlanta Hartsfield-Jackson

Jul 3

ATL8:45 amAtlanta Hartsfield-Jackson

12h 07m

1 stop

ONT5:52 pmOntario

$286

Frontier

Aug 10

ONT8:17 amOntario

8h 33m

1 stop

ATL7:50 pmAtlanta Hartsfield-Jackson

Aug 19

ATL6:03 amAtlanta Hartsfield-Jackson

14h 49m

1 stop

ONT5:52 pmOntario

$287

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioAtlanta

ONT - ATL

ONTATL

Ontario

Thu 8/20

10:50 am-11:38 am

1 stop21h 48m

Atlanta Hartsfield-Jackson

Mon 8/24

6:03 am-5:52 pm

1 stop14h 49m

$285

OntarioAtlanta

ONT - ATL

ONTATL

Ontario

Wed 6/24

3:34 pm-6:57 am

1 stop12h 23m

Atlanta Hartsfield-Jackson

Sat 7/4

11:14 am-7:51 pm

1 stop11h 37m

$286

OntarioAtlanta

ONT - ATL

ONTATL

Ontario

Mon 8/10

8:17 am-7:50 pm

1 stop8h 33m

Atlanta Hartsfield-Jackson

Wed 8/19

6:03 am-5:52 pm

1 stop14h 49m

$287

Quickest round-trip

OntarioAtlanta

ONT - ATL

ONTATL

Ontario

Wed 7/1

5:43 pm-10:01 am

1 stop13h 18m

Atlanta Hartsfield-Jackson

Sat 7/4

11:14 am-3:08 pm

1 stop6h 54m

$288

OntarioAtlanta

ONT - ATL

ONTATL

Ontario

Sat 6/20

11:58 am-6:55 am

1 stop15h 57m

Atlanta Hartsfield-Jackson

Tue 6/23

7:11 pm-3:08 pm

1 stop22h 57m

$290

OntarioAtlanta

ONT - ATL

ONTATL

Ontario

Fri 8/7

8:17 am-7:50 pm

1 stop8h 33m

Atlanta Hartsfield-Jackson

Sat 8/15

7:40 am-11:50 pm

1 stop19h 10m

$291

OntarioAtlanta

ONT - ATL

ONTATL

Ontario

Sun 7/26

8:17 am-7:50 pm

1 stop8h 33m

Atlanta Hartsfield-Jackson

Tue 7/28

7:11 pm-3:14 pm

1 stop23h 03m

$292

OntarioAtlanta

ONT - ATL

ONTATL

Ontario

Wed 7/1

5:43 pm-10:01 am

1 stop13h 18m

Atlanta Hartsfield-Jackson

Sat 7/11

9:25 pm-7:32 am

1 stop13h 07m

$293

OntarioAtlanta

ONT - ATL

ONTATL

Ontario

Thu 6/25

11:58 am-6:55 am

1 stop15h 57m

Atlanta Hartsfield-Jackson

Mon 6/29

7:11 pm-3:08 pm

1 stop22h 57m

$294

OntarioAtlanta

ONT - ATL

ONTATL

Ontario

Sat 6/20

6:00 am-5:02 am

1 stop20h 02m

Atlanta Hartsfield-Jackson

Sat 6/27

7:40 am-10:05 am

1 stop29h 25m

$295

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

Other information

What is the typical price of a round-trip flight between Ontario and Atlanta?

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 $383. If you aren’t able to travel to Atlanta during the month of February, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $389.

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

Our data shows that Friday is the least expensive day to fly to Atlanta. Tickets to fly out on this day can be as low as $389. 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 $500.

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 $306. Flights to Atlanta are more costly in the morning, with an average ticket price of $502. 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 $434 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 $395 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 June 2026, prices for Ontario to Atlanta flights are approximately 22% 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	$219
Fastest flight time	4h 06m
Direct flights	Every day
Airports in Atlanta	1 airport

The best one-way flight to Atlanta from Ontario in the past 72 hours is $219. The best round-trip flight deal from Ontario to Atlanta found on momondo in the last 72 hours is $426.

The fastest flight from Ontario to Atlanta takes 4h 06m

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 4h 06m, 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?
As of June 2026, there are 5 operators available to choose from 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?
momondo data reveals that the most frequently booked plane model on the route from Ontario to Atlanta is Airbus A321-100/200, representing 33.40% of all bookings. The subsequent popular models are Airbus A321neo at 16.86%, Airbus A320neo at 7.91%, and Airbus A318/A319/A320/A321 at 4.01%.
What is the most popular airline from Ontario to Atlanta?
Based on momondo bookings for flights between Ontario and Atlanta, the leading airline is Delta, making up 56% of the total bookings. Other popular airlines include Frontier with 28%, Southwest with 11%, and American Airlines with 4%.

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
Frontier	PriceFrom $150	Free Cancellation	Rating 5.6 2,914 reviews	Search Frontier flights
American Airlines	PriceFrom $230	Free Cancellation	Rating 7.1 11,641 reviews	Search American Airlines flights
Delta	PriceFrom $319	Free Cancellation	Rating 7.9 8,397 reviews	Search Delta flights
Southwest	PriceFrom $338	Free Cancellation	Rating 8.0 4,256 reviews	Search Southwest flights
JetBlue	PriceFrom $378	Free Cancellation	Rating 7.1 2,983 reviews	Search JetBlue flights

Delta Flights From Ontario to Atlanta
Delta operates around 12 flights from Ontario to Atlanta every week. The average price of these flights found in the last 72 hours has been $524, but momondo users have found Delta deals from Ontario to Atlanta from as low as $319 round-trip. Delta has been scored 7.9/10 in 8,397 reviews.

Helen

Marietta

Duluth

McDonough

Warner Robins

Blue Ridge

Stone Mountain

Cartersville

Lawrenceville

Norcross

Kennesaw

Covington

Douglasville

La Grange

Auburn

College Park

Dahlonega

Newnan

Gainesville

Lithonia

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

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Cheap flights from Ontario to Atlanta from $65

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 8/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Frontier flights from Ontario to Atlanta

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How to get the cheapest flight ticket from Ontario to Atlanta

What is the typical price of a round-trip flight between Ontario and Atlanta?

What is the cheapest month to fly to Atlanta?

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

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

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

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

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

How have Ontario to Atlanta flight prices changed over time?

What is the cheapest airline that flies from Ontario to Atlanta Hartsfield-Jackson?

What airlines fly to Atlanta?

How many flights depart from Ontario to Atlanta on average per day?

How many flights depart from Ontario to Atlanta on average per week?

When to book flights from Ontario to Atlanta

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

Fastest flight time

Direct flights

Airports in Atlanta

Frequently asked questions about flying 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

Delta Flights From Ontario to Atlanta

Traveling to a place near Atlanta?

Why use momondo?

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.

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Fly your favorite airline to Atlanta

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Atlanta

List of cabin classes available on flights landing in Atlanta. Availability may vary depending on flight origin and airline.

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Popular flights according to clicks in the last 7 days on momondo

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