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Cheap Flights from Ontario Intl. Airport (ONT) to Atlanta (ATL)

View AU$291 flight on Fri, 18 Sept 2026Opens in a new window

Popular airlines from Ontario Intl. Airport (ONT) to Hartsfield-Jackson Atlanta International Airport (ATL)

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Cheap Flights from Ontario Intl. Airport (ONT) to Atlanta (ATL)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Fri, 6 Nov - Thu, 26 Nov
ONT
Ontario
ATL
Atlanta
AU$557 Return, found 1 day ago
AU$557
Return
found 1 day ago
Select Alaska Airlines flight, departing Fri, 6 Nov from Ontario to Atlanta, returning Thu, 26 Nov, priced at AU$557 found 1 day ago
Alaska Airlines
Tue, 15 Sept - Sat, 3 Oct
ONT
Ontario
ATL
Atlanta
AU$558 Return, found 3 days ago
AU$558
Return
found 3 days ago
Select Alaska Airlines flight, departing Tue, 15 Sept from Ontario to Atlanta, returning Sat, 3 Oct, priced at AU$558 found 3 days ago
Alaska Airlines
Fri, 23 Oct - Fri, 30 Oct
ONT
Ontario
ATL
Atlanta
AU$581 Return, found 1 day ago
AU$581
Return
found 1 day ago
Select Alaska Airlines flight, departing Fri, 23 Oct from Ontario to Atlanta, returning Fri, 30 Oct, priced at AU$581 found 1 day ago
Alaska Airlines
Sun, 8 Nov - Thu, 26 Nov
ONT
Ontario
ATL
Atlanta
AU$595 Return, found 1 day ago
AU$595
Return
found 1 day ago
Select Alaska Airlines flight, departing Sun, 8 Nov from Ontario to Atlanta, returning Thu, 26 Nov, priced at AU$595 found 1 day ago
Alaska Airlines
Fri, 23 Oct - Sun, 25 Oct
ONT
Ontario
ATL
Atlanta
AU$621 Return, found 1 day ago
AU$621
Return
found 1 day ago
Select Alaska Airlines flight, departing Fri, 23 Oct from Ontario to Atlanta, returning Sun, 25 Oct, priced at AU$621 found 1 day ago
Alaska Airlines
Fri, 26 Feb - Fri, 12 Mar
ONT
Ontario
ATL
Atlanta
AU$623 Return, found 3 days ago
AU$623
Return
found 3 days ago
Select Alaska Airlines flight, departing Fri, 26 Feb from Ontario to Atlanta, returning Fri, 12 Mar, priced at AU$623 found 3 days ago
Alaska Airlines
Mon, 14 Sept - Fri, 25 Sept
ONT
Ontario
ATL
Atlanta
AU$627 Return, found 1 day ago
AU$627
Return
found 1 day ago
Select Alaska Airlines flight, departing Mon, 14 Sept from Ontario to Atlanta, returning Fri, 25 Sept, priced at AU$627 found 1 day ago
Delta
Sun, 25 Oct - Sun, 1 Nov
ONT
Ontario
ATL
Atlanta
AU$632 Return, found 1 day ago
AU$632
Return
found 1 day ago
Select Delta flight, departing Sun, 25 Oct from Ontario to Atlanta, returning Sun, 1 Nov, priced at AU$632 found 1 day ago
Delta
Thu, 11 Feb - Thu, 18 Feb
ONT
Ontario
ATL
Atlanta
AU$634 Return, found 3 days ago
AU$634
Return
found 3 days ago
Select Delta flight, departing Thu, 11 Feb from Ontario to Atlanta, returning Thu, 18 Feb, priced at AU$634 found 3 days ago
Alaska Airlines
Fri, 20 Nov - Fri, 4 Dec
ONT
Ontario
ATL
Atlanta
AU$658 Return, found 1 day ago
AU$658
Return
found 1 day ago
Select Alaska Airlines flight, departing Fri, 20 Nov from Ontario to Atlanta, returning Fri, 4 Dec, priced at AU$658 found 1 day ago
Alaska Airlines
Sun, 14 Feb - Tue, 16 Feb
ONT
Ontario
ATL
Atlanta
AU$660 Return, found 3 days ago
AU$660
Return
found 3 days ago
Select Alaska Airlines flight, departing Sun, 14 Feb from Ontario to Atlanta, returning Tue, 16 Feb, priced at AU$660 found 3 days ago
Alaska Airlines
Sun, 13 Sept - Thu, 1 Oct
ONT
Ontario
ATL
Atlanta
AU$678 Return, found 3 days ago
AU$678
Return
found 3 days ago
Select Alaska Airlines flight, departing Sun, 13 Sept from Ontario to Atlanta, returning Thu, 1 Oct, priced at AU$678 found 3 days ago
Alaska Airlines
Sun, 13 Sept - Fri, 25 Sept
ONT
Ontario
ATL
Atlanta
AU$681 Return, found 3 days ago
AU$681
Return
found 3 days ago
Select Alaska Airlines flight, departing Sun, 13 Sept from Ontario to Atlanta, returning Fri, 25 Sept, priced at AU$681 found 3 days ago
Alaska Airlines
Fri, 20 Nov - Sun, 6 Dec
ONT
Ontario
ATL
Atlanta
AU$702 Return, found 3 days ago
AU$702
Return
found 3 days ago
Select Alaska Airlines flight, departing Fri, 20 Nov from Ontario to Atlanta, returning Sun, 6 Dec, priced at AU$702 found 3 days ago
Delta
Sun, 13 Sept - Fri, 25 Sept
ONT
Ontario
ATL
Atlanta
AU$703 Return, found 1 day ago
AU$703
Return
found 1 day ago
Select Delta flight, departing Sun, 13 Sept from Ontario to Atlanta, returning Fri, 25 Sept, priced at AU$703 found 1 day ago

Alternative airports near Atlanta

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Hartsfield-Jackson Atlanta Intl. ATL. Cheapest option available. Average driving time to city centre is 16 minutes. Flights from AU$773
ATL
Hartsfield-Jackson Atlanta Intl.
Cheapest
Average driving time to city centre16 min
Flights from AU$773

Find the cheapest month to fly from Ontario (ONT) to Atlanta (ATL)

May is typically the cheapest month to fly

From AU$233 - AU$378 per traveller.

Frequently asked questions

How much does a flight from Ontario Intl. Airport (ONT) to Atlanta, GA (ATL-Hartsfield-Jackson Atlanta Intl.) cost?
You can find one-way and return flights from ONT to ATL with Expedia. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see our cheapest fares first, and use the Price Tracking tool to receive alerts when ONT to ATL ticket fares go up or down.
Which airlines fly direct from Ontario Intl. Airport (ONT) to Atlanta, GA (ATL-Hartsfield-Jackson Atlanta Intl.)?
There is 1 airline offering direct flights from Ontario Intl. Airport (ONT) to Atlanta, GA (ATL-Hartsfield-Jackson Atlanta Intl.) (ATL). Delta Air Lines operates 23 direct flights from Ontario Intl. Airport (ONT) to Atlanta, GA (ATL-Hartsfield-Jackson Atlanta Intl.) (ATL) every week.
What is the cheapest airline that flies from Ontario Intl. Airport (ONT) to Atlanta, GA (ATL-Hartsfield-Jackson Atlanta Intl.)?
Delta Air Lines is one of the cheapest airlines offering nonstop return flights from Ontario Intl. Airport (ONT) to Atlanta, GA (ATL-Hartsfield-Jackson Atlanta Intl.), with tickets starting from around AU$1683 for flights that can be booked for departure within the next year. Frontier Airlines offers one of the cheapest connecting return flights from Ontario Intl. Airport (ONT) to Atlanta, GA (ATL-Hartsfield-Jackson Atlanta Intl.) starting from around AU$1701. These prices are per adult, economy/coach class. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.
What is the best airline to fly with from Ontario Intl. Airport (ONT) to Atlanta, GA (ATL-Hartsfield-Jackson Atlanta Intl.)?
The best airline to fly with from Ontario Intl. Airport (ONT) to Atlanta, GA (ATL-Hartsfield-Jackson Atlanta Intl.) will differ from traveller to traveller. If you like to fly early, Delta Air Lines offers early morning flights. If price is the most important factor, Delta Air Lines typically offers the lowest fares. Southwest Airlines offers the most daily flights from Ontario Intl. Airport (ONT) to Atlanta, GA (ATL-Hartsfield-Jackson Atlanta Intl.), which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the earliest flight from Ontario Intl. Airport (ONT) to Atlanta, GA (ATL-Hartsfield-Jackson Atlanta Intl.)?
The earliest flight from Ontario Intl. Airport (ONT) to Atlanta, GA (ATL-Hartsfield-Jackson Atlanta Intl.) (ATL) typically departs around 12:55 AM local time. This service is operated by American Airlines and is a seasonal offering, active in September. An early departure like this can help you maximise your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Ontario Intl. Airport (ONT) to Atlanta, GA (ATL-Hartsfield-Jackson Atlanta Intl.)?
You'll typically find the most flights from Ontario Intl. Airport (ONT) to Hartsfield-Jackson Atlanta Intl. (ATL) on a Friday, with around 54 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include Southwest Airlines, American Airlines, and Delta Air Lines. Flight schedules are consistent throughout the week, with Friday having only slightly more flights than other days.
What are the most popular departure times for flights from Ontario Intl. Airport (ONT) to Atlanta, GA (ATL-Hartsfield-Jackson Atlanta Intl.)?
The most popular departure times for flights from Ontario Intl. Airport (ONT) to Atlanta, GA (ATL-Hartsfield-Jackson Atlanta Intl.) (ATL) are in the morning, from 6am to 9am. This accounts for around 34% of total traffic. Heaps of major carriers, including American Airlines, Southwest Airlines and Delta, offer flights during this window. Many travellers prefer this because it allows for an early start to their journey, often arriving at their destination with plenty of time left in the day.
Can you fly business or first class from Ontario Intl. Airport (ONT) to Atlanta, GA (ATL-Hartsfield-Jackson Atlanta Intl.)?
You can fly business class or first class between ONT and ATL. Business class service on this route is offered by Frontier Airlines and Delta Air Lines. First class cabins are available on American Airlines, Alaska Airlines, and Delta Air Lines.

Travel information

Origin airport
Ontario Intl. Airport
Destination airport
Hartsfield-Jackson Atlanta Intl.
Roundtrip price
AU$556
Distance
3029 km
Average flight time
7 hours 24 mins

Book with confidence

Your quick guide to flights from Ontario Intl. Airport to Atlanta

Pick up great flights from Ontario Intl. Airport to Atlanta

With Expedia, you have your pick of flights a day with 20 airlines covering flights from Ontario Intl. Airport to Atlanta. Whether you’re on a business trip, a family holiday or a luxury break, just enter your travel dates, hit search then check out your choice of flights. Select from return, one way or multi-city flights, and use the advance search tool if you want a direct or refundable flight. You can narrow your search to show you just your preferred cabin class and airline, too. It’s all easy. You can book direct flights from Ontario Intl. Airport to Atlanta that take around hours.

Find cheap flights from Ontario Intl. Airport to Atlanta

From the great flight deals with prices currently ranging from AU$557 to AU$703, you can choose to see the cheapest flights first. Generally, you can book the cheapest flights from Ontario Intl. Airport to Atlanta around 4 to 6 weeks in advance. If your travel dates are flexible, try to avoid weekends and peak seasons – when you are more likely to grab the lowest prices. Even last minute, there are some impressive deals. The cheapest time to fly to Atlanta is normally in November.

Reasons to book your flight from Ontario Intl. Airport to Atlanta with Expedia

Expedia makes it easy to find, book, and travel, with everything you need all in one place. When you enter your travel details, find fantastic deals just for you on flight tickets from Ontario Intl. Airport to Atlanta across all the main airline carriers, so you can save time, dollars, and hassle finding the perfect flight. If you think your plans could change, choose refundable flights so any changes won’t cost you more. Book your flight to Atlanta right now and, if you join Expedia Rewards, you earn points this time and every time you travel with Expedia.

Your quick guide to flights from Ontario Intl. Airport to Atlanta

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