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

50 flights are operational weekly from Ontario to Atlanta as of March 2026. The most popular departure day for this route is Mon, with 18% of flights per week taking off on this day.

Which layover airport offers the lowest fares from Ontario to Atlanta?

Flights via Dallas (DFW) offer the lowest average round-trip price of $405.

Which airport is the most popular layover for flights between Ontario and Atlanta?

Phoenix (PHX) was the most common stop: 40% of momondo users choosing 1-stop flights on this route connected there.

What airlines fly to Atlanta?

Frontier, Delta and Spirit 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 33% of people opting to fly with this airline when traveling to Atlanta. Keep in mind that there are 8 different airlines that fly to Atlanta on a routine basis, so you have a few additional options to choose from.

Which layover airport has the shortest connection time from Ontario to Atlanta?

Denver (DEN) has the shortest average layover time for this route: 0h 55m.

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

The number of flights available between Ontario and Atlanta is 7 per day as of March 2026. The most frequent departure time is 1:00PM, with 55% of daily flights leaving in the afternoon.

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

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

Which layover airport has the shortest travel time from Ontario to Atlanta?

Flights connecting via Denver (DEN) have the shortest average one-way travel time: 6h 00m.

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 March 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.

$60 Cheap Flights from Ontario to Atlanta in 2026

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Find the cheapest flights from Ontario to Atlanta

Round-trip

One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

8:56 am - 7:29 pm

ONT

ATL

7h 33m

1 stop

8:51 pm - 11:55 pm

ATL

ONT

30h 04m

1 stop

$210Frontier

Thu, Apr 30 - Mon, May 4

11:47 am - 6:47 am

ONT

ATL

16h 00m

1 stop

6:30 am - 4:38 pm

ATL

ONT

13h 08m

1 stop

$212Frontier

Thu, Apr 23 - Mon, May 4

6:20 am - 9:33 am

ONT

ATL

24h 13m

2 stops

9:15 pm - 4:38 pm

ATL

ONT

22h 23m

1 stop

$213Frontier

Wed, Apr 8 - Thu, Apr 23

6:20 am - 8:10 am

ONT

ATL

22h 50m

2 stops

8:51 pm - 11:55 pm

ATL

ONT

30h 04m

1 stop

$214Multiple Airlines

Fri, Apr 10 - Tue, Apr 14

8:26 am - 7:29 pm

ONT

ATL

8h 03m

1 stop

5:48 am - 11:55 pm

ATL

ONT

21h 07m

2 stops

$215Frontier

Thu, Apr 16 - Tue, Apr 21

4:52 pm - 6:30 am

ONT

ATL

10h 38m

1 stop

9:15 pm - 4:38 pm

ATL

ONT

22h 23m

1 stop

$216Frontier

Wed, Apr 8 - Thu, Apr 23

8:26 am - 9:07 pm

ONT

ATL

9h 41m

1 stop

9:15 pm - 4:38 pm

ATL

ONT

22h 23m

1 stop

$217Frontier

Fri, May 8 - Sun, May 10

5:33 pm - 5:11 am

ONT

ATL

8h 38m

1 stop

5:40 pm - 11:58 pm

ATL

ONT

9h 18m

1 stop

$218Frontier

Fri, Apr 17 - Fri, Apr 24

6:20 am - 9:33 am

ONT

ATL

24h 13m

2 stops

9:21 pm - 11:55 pm

ATL

ONT

29h 34m

1 stop

$219Frontier

Wed, Apr 8 - Mon, Apr 13

7:40 pm - 9:33 am

ONT

ATL

10h 53m

1 stop

9:15 pm - 4:38 pm

ATL

ONT

22h 23m

1 stop

$222Frontier

Fri, Apr 10 - Thu, Apr 23

Frontier flights from Ontario to Atlanta

Our best Frontier deals on Ontario to Atlanta flight tickets

Frontier

Apr 30

ONT8:56 amOntario

7h 33m

1 stop

ATL7:29 pmAtlanta Hartsfield-Jackson

May 4

ATL8:51 pmAtlanta Hartsfield-Jackson

30h 04m

1 stop

ONT11:55 pmOntario

$210

Frontier

Apr 23

ONT11:47 amOntario

16h 00m

1 stop

ATL6:47 amAtlanta Hartsfield-Jackson

May 4

ATL6:30 amAtlanta Hartsfield-Jackson

13h 08m

1 stop

ONT4:38 pmOntario

$212

Frontier

Apr 8

ONT6:20 amOntario

24h 13m

2 stops

ATL9:33 amAtlanta Hartsfield-Jackson

Apr 23

ATL9:15 pmAtlanta Hartsfield-Jackson

22h 23m

1 stop

ONT4:38 pmOntario

$213

Fly from

Fly to

Route

Depart

Return

Price

OntarioAtlanta

ONT - ATL

ONTATL

Ontario

Thu 4/30

8:56 am-7:29 pm

1 stop7h 33m

Atlanta Hartsfield-Jackson

Mon 5/4

8:51 pm-11:55 pm

1 stop30h 04m

$210

OntarioAtlanta

ONT - ATL

ONTATL

Ontario

Thu 4/23

11:47 am-6:47 am

1 stop16h 00m

Atlanta Hartsfield-Jackson

Mon 5/4

6:30 am-4:38 pm

1 stop13h 08m

$212

OntarioAtlanta

ONT - ATL

ONTATL

Ontario

Wed 4/8

6:20 am-9:33 am

2 stops24h 13m

Atlanta Hartsfield-Jackson

Thu 4/23

9:15 pm-4:38 pm

1 stop22h 23m

$213

OntarioAtlanta

ONT - ATL

ONTATL

Ontario

Fri 4/10

6:20 am-8:10 am

2 stops22h 50m

Atlanta Hartsfield-Jackson

Tue 4/14

8:51 pm-11:55 pm

1 stop30h 04m

$214

OntarioAtlanta

ONT - ATL

ONTATL

Ontario

Thu 4/16

8:26 am-7:29 pm

1 stop8h 03m

Atlanta Hartsfield-Jackson

Tue 4/21

5:48 am-11:55 pm

2 stops21h 07m

$215

OntarioAtlanta

ONT - ATL

ONTATL

Ontario

Wed 4/8

4:52 pm-6:30 am

1 stop10h 38m

Atlanta Hartsfield-Jackson

Thu 4/23

9:15 pm-4:38 pm

1 stop22h 23m

$216

OntarioAtlanta

ONT - ATL

ONTATL

Ontario

Fri 5/8

8:26 am-9:07 pm

1 stop9h 41m

Atlanta Hartsfield-Jackson

Sun 5/10

9:15 pm-4:38 pm

1 stop22h 23m

$217

OntarioAtlanta

ONT - ATL

ONTATL

Ontario

Fri 4/17

5:33 pm-5:11 am

1 stop8h 38m

Atlanta Hartsfield-Jackson

Fri 4/24

5:40 pm-11:58 pm

1 stop9h 18m

$218

OntarioAtlanta

ONT - ATL

ONTATL

Ontario

Wed 4/8

6:20 am-9:33 am

2 stops24h 13m

Atlanta Hartsfield-Jackson

Mon 4/13

9:21 pm-11:55 pm

1 stop29h 34m

$219

OntarioAtlanta

ONT - ATL

ONTATL

Ontario

Fri 4/10

7:40 pm-9:33 am

1 stop10h 53m

Atlanta Hartsfield-Jackson

Thu 4/23

9:15 pm-4:38 pm

1 stop22h 23m

$222

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

Layovers

Other information

What is the cheapest month to fly to Atlanta?

The month of April is, on average, the cheapest month to fly to Atlanta from Ontario, with most prices found around $394. If you aren’t able to travel to Atlanta during the month of April, then flying in August is also cheap. Prices for this month can be found on momondo for an average of $399.

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 $353. 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 $458.

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 $312. Flights to Atlanta are more costly in the morning, with an average ticket price of $434. 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 weeks ahead of your departure date. In general, you can expect to find flights to Atlanta for around $412 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 $308 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 2026, prices for Ontario to Atlanta flights are approximately 14% 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	$203
Fastest flight time	4h 03m
Direct flights	Every day
Airports in Atlanta	1 airport

The best one-way flight to Atlanta from Ontario in the past 72 hours is $203. The best round-trip flight deal from Ontario to Atlanta found on momondo in the last 72 hours is $390.

The fastest flight from Ontario to Atlanta takes 4h 03m

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).

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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 03m, 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 March 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 25.43% of all bookings. The subsequent popular models are Airbus A321neo at 17.69%, Boeing 737 MAX 8 at 4.51%, and Boeing 737 MAX 9 at 3.58%.
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 48% of the total bookings. Other popular airlines include Frontier with 31%, Southwest with 13%, and American Airlines with 7%.

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 Airlines	PriceFrom $79	Free Cancellation	Rating 6.3 8,490 reviews	Search Spirit Airlines flights
Frontier	PriceFrom $150	Free Cancellation	Rating 5.7 3,041 reviews	Search Frontier flights
American Airlines	PriceFrom $286	Free Cancellation	Rating 7.1 11,378 reviews	Search American Airlines flights
Delta	PriceFrom $319	Free Cancellation	Rating 7.9 8,245 reviews	Search Delta flights
Southwest	PriceFrom $322	Free Cancellation	Rating 8.0 4,304 reviews	Search Southwest flights

Delta Flights From Ontario to Atlanta
Delta operates around 11 flights from Ontario to Atlanta every week. The average price of these flights found in the last 72 hours has been $500, 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 8,245 reviews.

Helen

Marietta

Duluth

McDonough

Warner Robins

Blue Ridge

Stone Mountain

Lawrenceville

Covington

Cartersville

Auburn

Norcross

Dahlonega

Newnan

Kennesaw

La Grange

Gadsden

Conyers

Douglasville

Gainesville

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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Cheap flights from Ontario to Atlanta from $60

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.

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How to get the cheapest flight ticket from Ontario to 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 to Atlanta?

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

Which airport is the most popular layover for flights between Ontario and Atlanta?

Which layover airport offers the lowest fares from Ontario to Atlanta?

Which layover airport has the shortest travel time from Ontario to Atlanta?

Which layover airport has the shortest connection time from Ontario 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

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

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

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