HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news

Cheap flights from Atlanta to Ontario (ATL - ONT) from $90

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/12. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
ATL — ONT
Jun 4 — Jun 111
From?
To?
Tue 6/4
Tue 6/11
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

The best prices from Atlanta Hartsfield-Jackson to Ontario are usually found in August or September, booked 56 days in advance, depart on a Monday or Thursday and return on a Wednesday

Cheap flight deals from Atlanta to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Atlanta (ATL) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated May 30, 2024.

Popular in

March

Cheapest in

August

Round-trip from

$238

One-way from

$90
High demand for flights, 28% potential price rise
Search Deals
Best time to find cheap flights, 29% potential price drop
Search Deals
From Atlanta Hartsfield-Jackson to Ontario
Search Deals
One-way flight from Atlanta Hartsfield-Jackson to Ontario
Search Deals

What is the cheapest day to fly round-trip from Atlanta to Ontario?

Users have found that leaving on a Sunday can be a cost-effective option. It’s possible to save up to 39% on your flight compared to booking on days when demand is much higher.

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

Users have found that booking a flight from Atlanta to Ontario at least 53 days early can save you up to 47% on average compared to booking a flight this week. If booking 53 days before your flight isn’t an option for you, users have found flights from Atlanta to Ontario for as little as $262 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $444 for flights departing within the next 3 days.

What is the cheapest month to fly from Atlanta to Ontario?

October is one of the best times of the year to fly to Ontario from Atlanta. Prices for October average $308 per person but you can even find prices for as low as $62. The most expensive prices can be found in the month of March. Opting for a October flight can save you 29% on your journey compared to booking in March

What is the cheapest time of day to fly from ATL to ONT?

Unlike in the afternoon, when flights are generally more expensive, you can save up to 53% on flights from Atlanta to Ontario by exploring options for tickets at noon.

Cheap Frontier flights from Atlanta to Ontario

Explore cheap flight options specifically provided by Frontier for the route between Atlanta and Ontario. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 30, 2024.
Consider these cheap Frontier flights we've found departing from Atlanta to Ontario. It's recommended that users confirm their flight details before booking.
Sat 8/317:52 pmATL - ONT
1 stop6h 52mFrontier
Mon 9/165:39 pmONT - ATL
1 stop9h 27mFrontier
Deal found 5/29$176
Tue 8/208:18 amATL - ONT
1 stop7h 29mFrontier
Tue 9/31:32 pmONT - ATL
1 stop13h 34mFrontier
Deal found 5/29$177
Sat 9/78:18 amATL - ONT
1 stop7h 43mFrontier
Sat 9/148:35 pmONT - ATL
1 stop7h 13mFrontier
Deal found 5/29$178
Sat 8/248:37 amATL - ONT
1 stop24h 59mFrontier
Fri 8/3012:49 amONT - ATL
1 stop14h 58mFrontier
Deal found 5/29$179
Tue 8/1310:37 pmATL - ONT
1 stop10h 30mFrontier
Sun 8/2512:49 amONT - ATL
1 stop8h 02mFrontier
Deal found 5/30$180
Wed 8/1412:56 pmATL - ONT
1 stop9h 41mFrontier
Sun 8/1812:49 amONT - ATL
1 stop26h 17mFrontier
Deal found 5/30$181
Thu 8/2910:29 pmATL - ONT
1 stop28h 10mFrontier
Sun 9/1512:49 amONT - ATL
1 stop8h 02mFrontier
Deal found 5/29$182
Wed 8/2110:29 pmATL - ONT
1 stop28h 10mFrontier
Fri 8/2312:49 amONT - ATL
1 stop14h 58mFrontier
Deal found 5/29$183
Mon 6/1012:53 pmATL - ONT
1 stop14h 06mFrontier
Thu 6/1310:29 pmONT - ATL
1 stop12h 19mFrontier
Deal found 5/29$184

Cheap American Airlines flights from Atlanta to Ontario

Explore cheap flight options specifically provided by American Airlines for the route between Atlanta and Ontario. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 30, 2024.
Some of the best deals we've found on American Airlines flights traveling from Atlanta to Ontario. Check back soon if you're not seeing flights that suit your needs.
Tue 7/26:00 amATL - ONT
1 stop15h 57mAmerican Airlines
Fri 7/57:18 pmONT - ATL
2 stops11h 57mAmerican Airlines
Deal found 5/30$393
Sat 6/89:49 amATL - ONT
2 stops9h 02mAmerican Airlines
Sun 6/910:45 pmONT - ATL
1 stop6h 51mAmerican Airlines
Deal found 5/28$622
Tue 6/411:17 amATL - ONT
2 stops10h 31mAmerican Airlines
Fri 6/710:45 pmONT - ATL
1 stop8h 42mAmerican Airlines
Deal found 5/29$670
Tue 6/46:00 amATL - ONT
2 stops8h 47mAmerican Airlines
Fri 6/710:45 pmONT - ATL
1 stop8h 42mAmerican Airlines
Deal found 5/29$672
Sat 6/86:00 amATL - ONT
2 stops15h 22mAmerican Airlines
Sun 6/911:59 pmONT - ATL
2 stops13h 23mAmerican Airlines
Deal found 5/28$725
Tue 6/45:00 amATL - ONT
2 stops9h 52mAmerican Airlines
Wed 6/510:54 amONT - ATL
2 stops9h 57mAmerican Airlines
Deal found 5/29$845

Cheap Atlanta to Ontario flights in May & June 2024

Find cheap flight options from Atlanta to Ontario specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,784,634 searches. Prices were last updated on May 30, 2024.
The lowest fares we've come across on flights traveling from Atlanta to Ontario in May and June 2024. Check back regularly for other flight deals.
Thu 6/610:09 pmATL - ONT
1 stop11h 14mFrontier
Fri 6/712:48 amONT - ATL
1 stop12h 30mFrontier
Deal found 5/30$180
Sat 6/83:56 pmATL - ONT
1 stop9h 18mFrontier
Sat 6/159:44 amONT - ATL
1 stop17h 30mFrontier
Deal found 5/29$181
Wed 6/510:09 pmATL - ONT
1 stop28h 35mFrontier
Mon 6/1012:59 amONT - ATL
1 stop26h 15mFrontier
Deal found 5/29$182
Thu 6/610:09 pmATL - ONT
1 stop11h 14mFrontier
Mon 6/1012:59 amONT - ATL
1 stop26h 15mFrontier
Deal found 5/30$183
Mon 6/1012:53 pmATL - ONT
1 stop14h 06mFrontier
Thu 6/1310:29 pmONT - ATL
1 stop12h 19mFrontier
Deal found 5/29$184
Mon 6/103:39 pmATL - ONT
1 stop8h 57mFrontier
Wed 6/125:41 pmONT - ATL
1 stop10h 03mFrontier
Deal found 5/29$185
Wed 6/510:09 pmATL - ONT
1 stop15h 50mFrontier
Fri 6/712:48 amONT - ATL
1 stop26h 26mFrontier
Deal found 5/29$186
Thu 6/610:09 pmATL - ONT
1 stop11h 14mFrontier
Fri 6/712:48 amONT - ATL
1 stop26h 26mFrontier
Deal found 5/29$188
Wed 6/53:00 pmATL - ONT
1 stop7h 11mFrontier
Sat 6/87:24 pmONT - ATL
1 stop10h 00mFrontier
Deal found 5/29$189

Atlanta to Ontario 2024 flight deals

Discover exclusive flight deals for travel between Atlanta and Ontario in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 30, 2024.
The lowest fares we've come across on flights traveling from Atlanta to Ontario in May and June 2024. Check back regularly for other flight deals.
Sat 8/317:52 pmATL - ONT
1 stop6h 52mFrontier
Mon 9/165:39 pmONT - ATL
1 stop9h 27mFrontier
Deal found 5/29$176
Tue 8/208:18 amATL - ONT
1 stop7h 29mFrontier
Tue 9/31:32 pmONT - ATL
1 stop13h 34mFrontier
Deal found 5/29$177
Sat 9/78:18 amATL - ONT
1 stop7h 43mFrontier
Sat 9/148:35 pmONT - ATL
1 stop7h 13mFrontier
Deal found 5/29$178
Sat 8/248:37 amATL - ONT
1 stop24h 59mFrontier
Fri 8/3012:49 amONT - ATL
1 stop14h 58mFrontier
Deal found 5/29$179
Thu 6/610:09 pmATL - ONT
1 stop11h 14mFrontier
Fri 6/712:48 amONT - ATL
1 stop12h 30mFrontier
Deal found 5/30$180
Sat 6/83:56 pmATL - ONT
1 stop9h 18mFrontier
Sat 6/159:44 amONT - ATL
1 stop17h 30mFrontier
Deal found 5/29$181
Thu 8/2910:29 pmATL - ONT
1 stop28h 10mFrontier
Sun 9/1512:49 amONT - ATL
1 stop8h 02mFrontier
Deal found 5/29$182
Thu 6/610:09 pmATL - ONT
1 stop11h 14mFrontier
Mon 6/1012:59 amONT - ATL
1 stop26h 15mFrontier
Deal found 5/30$183
Mon 6/1012:53 pmATL - ONT
1 stop14h 06mFrontier
Thu 6/1310:29 pmONT - ATL
1 stop12h 19mFrontier
Deal found 5/29$184

Non-stop flights to Ontario from Atlanta

Discover non-stop flight options from Atlanta to Ontario. Find direct flights with no layovers, providing a convenient travel experience. Explore non-stop flight options based on user searches, and compare prices and availability for your desired travel dates. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 30, 2024.
Take a look at some of the direct flights traveling from Atlanta to Ontario in the near future. Search for alternative flights from Atlanta to Ontario by utilizing the search form above.
Fri 6/289:30 pmATL - ONT
Nonstop4h 30mDelta
Mon 7/810:00 pmONT - ATL
Nonstop4h 15mDelta
Deal found 5/29$409
Thu 7/186:05 pmATL - ONT
Nonstop4h 22mDelta
Sat 7/2710:00 pmONT - ATL
Nonstop4h 15mDelta
Deal found 5/29$411
Thu 6/276:09 pmATL - ONT
Nonstop4h 33mDelta
Wed 7/37:05 amONT - ATL
Nonstop4h 15mDelta
Deal found 5/30$438
Thu 6/276:09 pmATL - ONT
Nonstop4h 33mDelta
Mon 7/810:00 pmONT - ATL
Nonstop4h 15mDelta
Deal found 5/29$439
Thu 6/278:55 amATL - ONT
Nonstop4h 25mDelta
Wed 7/37:05 amONT - ATL
Nonstop4h 15mDelta
Deal found 5/29$441
Thu 6/279:30 pmATL - ONT
Nonstop4h 30mDelta
Wed 7/311:30 amONT - ATL
Nonstop4h 20mDelta
Deal found 5/29$442
Wed 6/196:09 pmATL - ONT
Nonstop4h 33mDelta
Mon 6/247:05 amONT - ATL
Nonstop4h 15mDelta
Deal found 5/30$469
Tue 6/189:30 pmATL - ONT
Nonstop4h 30mDelta
Sat 6/227:05 amONT - ATL
Nonstop4h 15mDelta
Deal found 5/29$489
Wed 7/38:55 amATL - ONT
Nonstop4h 25mDelta
Tue 7/96:50 amONT - ATL
Nonstop4h 25mDelta
Deal found 5/28$494

Atlanta to Ontario flights leaving soon

Find last-minute flight options from Atlanta to Ontario for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 30, 2024.
Have a look at some of the last-minute flights available departing from Atlanta to Ontario. Tip: verify your flight details before completing your reservation.
Sat 6/83:56 pmATL - ONT
1 stop9h 18mFrontier
Sat 6/159:44 amONT - ATL
1 stop17h 30mFrontier
Deal found 5/29$180
Sat 6/83:56 pmATL - ONT
1 stop9h 18mFrontier
Sat 6/159:44 amONT - ATL
1 stop17h 30mFrontier
Deal found 5/29$181
Wed 6/510:09 pmATL - ONT
1 stop28h 35mFrontier
Mon 6/1012:59 amONT - ATL
1 stop26h 15mFrontier
Deal found 5/29$182
Thu 6/610:09 pmATL - ONT
1 stop28h 31mFrontier
Mon 6/109:36 pmONT - ATL
1 stop29h 38mFrontier
Deal found 5/29$183
Wed 6/510:09 pmATL - ONT
1 stop15h 50mFrontier
Fri 6/712:48 amONT - ATL
1 stop12h 30mFrontier
Deal found 5/29$184
Thu 6/610:09 pmATL - ONT
1 stop11h 14mFrontier
Fri 6/712:48 amONT - ATL
1 stop26h 26mFrontier
Deal found 5/29$185
Wed 6/510:09 pmATL - ONT
1 stop15h 50mFrontier
Fri 6/712:48 amONT - ATL
1 stop26h 26mFrontier
Deal found 5/29$186
Thu 6/610:09 pmATL - ONT
1 stop11h 14mFrontier
Fri 6/712:48 amONT - ATL
1 stop26h 26mFrontier
Deal found 5/29$188
Wed 6/53:00 pmATL - ONT
1 stop7h 11mFrontier
Sat 6/87:24 pmONT - ATL
1 stop10h 00mFrontier
Deal found 5/29$189

One-way flights to Ontario from Atlanta

Search for one-way flight options from Atlanta to Ontario. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 30, 2024.
Take a look at some of the one-way flights we've detected from Atlanta to Ontario. Those needing a return flight from Atlanta to Ontario can use the search form above.
Wed 6/128:15 amATL - ONT
1 stop8h 00mFrontier
Deal found 5/29$90
Sat 6/153:56 pmATL - ONT
1 stop9h 18mFrontier
Deal found 5/30$92
Tue 8/138:18 amATL - ONT
1 stop7h 29mFrontier
Deal found 5/30$94
Mon 6/103:39 pmATL - ONT
1 stop8h 57mFrontier
Deal found 5/28$95
Thu 6/610:09 pmATL - ONT
1 stop11h 14mFrontier
Deal found 5/30$96
Tue 6/1110:24 pmATL - ONT
1 stop11h 38mFrontier
Deal found 5/29$97
Wed 6/510:09 pmATL - ONT
1 stop15h 50mFrontier
Deal found 5/29$98
Thu 8/2910:29 pmATL - ONT
1 stop28h 10mFrontier
Deal found 5/29$100
Mon 9/97:59 pmATL - ONT
1 stop13h 08mFrontier
Deal found 5/29$101

Find flights from Atlanta to Ontario within your budget

Customize your flight search to find flights from Atlanta to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 30, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$176 - $409

Route

Depart

Return

Price

Atlanta Hartsfield-JacksonOntario

ATL - ONT

ATLONT

Atlanta Hartsfield-Jackson

Sat 8/31

1 stop6h 52m

Ontario

Mon 9/16

1 stop9h 27m

$176

Atlanta Hartsfield-JacksonOntario

ATL - ONT

ATLONT

Atlanta Hartsfield-Jackson

Tue 8/20

1 stop7h 29m

Ontario

Tue 9/3

1 stop13h 34m

$177

Atlanta Hartsfield-JacksonOntario

ATL - ONT

ATLONT

Atlanta Hartsfield-Jackson

Sat 9/7

1 stop7h 43m

Ontario

Sat 9/14

1 stop7h 13m

$178

Atlanta Hartsfield-JacksonOntario

ATL - ONT

ATLONT

Atlanta Hartsfield-Jackson

Sat 8/24

1 stop24h 59m

Ontario

Fri 8/30

1 stop14h 58m

$179

Atlanta Hartsfield-JacksonOntario

ATL - ONT

ATLONT

Atlanta Hartsfield-Jackson

Tue 8/13

1 stop10h 30m

Ontario

Sun 8/25

1 stop8h 02m

$180

Atlanta Hartsfield-JacksonOntario

ATL - ONT

ATLONT

Atlanta Hartsfield-Jackson

Sat 9/21

2 stops14h 10m

Ontario

Sat 9/28

1 stop10h 05m

$365

Atlanta Hartsfield-JacksonOntario

ATL - ONT

ATLONT

Atlanta Hartsfield-Jackson

Tue 7/2

1 stop15h 57m

Ontario

Fri 7/5

2 stops11h 57m

$393

Atlanta Hartsfield-JacksonOntario

ATL - ONT

ATLONT

Atlanta Hartsfield-Jackson

Mon 10/7

1 stop9h 13m

Ontario

Mon 10/14

1 stop9h 04m

$406

Atlanta Hartsfield-JacksonOntario

ATL - ONT

ATLONT

Atlanta Hartsfield-Jackson

Fri 6/28

Nonstop4h 30m

Ontario

Fri 7/5

Nonstop4h 15m

$409

Flights are sorted by cheapest first

Deals found on 5/29

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

Use this chart to determine the optimal time to book a round-trip flight from Atlanta to Ontario. Price data was last updated on May 24, 2024.
To ensure you get the cheapest price possible for a flight from Atlanta to Ontario, you should look to book at least 52 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
Search Deals

What is the cheapest day to fly from Atlanta to Ontario?

Use this chart to determine the cheapest time to fly round-trip from Atlanta to Ontario. Price data was last updated on May 26, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Atlanta to Ontario flight should consider departing on Monday at noon when fares are most often at their lowest. Wednesday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Best time to book a flight from Atlanta to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Atlanta with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Temperature and rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average temperature and rainfall totals by month.

LAX

Temperature

57.2 - 73.4 °F

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated May 30, 2024.
Get a feel of what it's like to fly with Frontier, American Airlines and Delta from Atlanta to Ontario by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.1
Very good
9,192 reviews
Check prices

Food

7.3

Overall

8.1

Crew

8.6

Comfort

7.9

Boarding

8.2

Entertainment

7.3

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

Alaska Airlines
8.1
Very good
9,192 reviews
Alaska Airlines
8.1
Very good
9,192 reviews
Check prices

Food

7.3

Overall

8.1

Crew

8.6

Comfort

7.9

Boarding

8.2

Entertainment

7.3

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

Delta
8.0
Very good
10,457 reviews
Alaska Airlines
8.1
Very good
9,192 reviews
Check prices

Food

7.3

Overall

8.1

Crew

8.6

Comfort

7.9

Boarding

8.2

Entertainment

7.3

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

JetBlue
7.6
Good
4,365 reviews
Alaska Airlines
8.1
Very good
9,192 reviews
Check prices

Food

7.3

Overall

8.1

Crew

8.6

Comfort

7.9

Boarding

8.2

Entertainment

7.3

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

WestJet
7.5
Good
2,866 reviews
Alaska Airlines
8.1
Very good
9,192 reviews
Check prices

Food

7.3

Overall

8.1

Crew

8.6

Comfort

7.9

Boarding

8.2

Entertainment

7.3

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

United Airlines
7.4
Good
10,777 reviews
Alaska Airlines
8.1
Very good
9,192 reviews
Check prices

Food

7.3

Overall

8.1

Crew

8.6

Comfort

7.9

Boarding

8.2

Entertainment

7.3

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

Related info for your journey

Find useful and relevant information for your journey from Atlanta to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from Atlanta to Ontario?

    To fly from Atlanta to Ontario, you need to book a flight from Hartsfield-Jackson (ATL) to Ontario (ONT). Nonstop flights to Ontario from Atlanta Hartsfield-Jackson take 4h 18m on average. When it comes time to book airfare, you have a few options: there are 5 outbound flights from Hartsfield-Jackson to Ontario offered by 6 different airlines.

  • Can I find flights from Atlanta to Ontario for under $200 on Cheapflights?

    Yes, there are multiple flights from Atlanta to Ontario for under $200. The cheapest flight booked recently is on Frontier for just $176, but on average you can expect to pay $191.

  • Are there nonstop flights from Atlanta to Ontario for under $500 on Cheapflights?

    Cheapflights has at least 20 direct flights from Atlanta to Ontario under $500. A good price for a nonstop flight from Atlanta to Ontario is less than $527.

  • Are there last-minute flights available from Atlanta to Ontario for under $200?

    There are currently 20+ open flights from Atlanta to Ontario within the next 7 days for less than $200.

  • What days are nonstop flights available from Atlanta to Ontario?

    Nonstop flights can be found on the following days: Monday, Tuesday, Thursday, Friday, Saturday.

  • How popular is this Atlanta to Ontario flight route?

    Flights from Atlanta Hartsfield-Jackson to Ontario have been viewed 2 times in the past calendar month.

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

    On average 5 flights depart from Atlanta to Ontario per day.
    Morning (6am - Noon) - 20% of flight departures
    Afternoon (Noon - 6pm) - 20% of flight departures
    Evening (6pm - Midnight) - 60% of flight departures

  • How long is the flight from Atlanta to Ontario?

    There are many flights that can get you from Atlanta to Ontario in 6h 52m. Fly via Frontier to get the fastest option. Atlanta and Ontario are separated by a distance of 1906 mi.

  • What is the cheapest airline to fly from Atlanta to Ontario round-trip?

    According to our current data, Frontier ($176), offers the cheapest pricing from Atlanta to Ontario. This flight start at 51% lower than the current average price 3 months from now.

  • What are the most reliable airlines from Atlanta to Ontario?

    The top 3 most reliable airlines when flying from Atlanta to Ontario are ITA Airways (100%), LATAM Airlines (83%) and Virgin Atlantic (81%).

  • What are the cheapest flights from Atlanta to Ontario?

    Looking at all options, your cheapest flight can be booked for $359. While the most popular route (Atlanta Hartsfield-Jackson - Ontario) can be booked for $179 on average our data indicates $799 when flying from Atlanta to Ontario.

  • What does ATL to ONT mean?

    These are just IATA (International Air Transport Association) codes. They are used in aviation to identify and differentiate airports. That’s why a Atlanta Hartsfield-Jackson Airport to Ontario Airport flight would often be abbreviated as a ATL to ONT flight.

  • Can I find deals for flights from Atlanta to Ontario that include extra baggage allowance?

    The amount of baggage you can bring on your Atlanta to Ontario flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Atlanta to Ontario with specific airlines?

    Yes, Cheapflights allows you to browse and filter Atlanta to Ontario flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Atlanta to Ontario that include hotel bookings?

    Yes. In addition to deals on Atlanta to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Atlanta to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Atlanta to Ontario.

  • Can I find deals for business class flights from Atlanta to Ontario?

    Yes. Cheapflights offers flight deals from Atlanta to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Atlanta to Ontario that allow pets onboard?

    Many airlines flying from Atlanta to Ontario offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Atlanta to Ontario?

    Yes, you can often find last-minute deals on Atlanta to Ontario flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Atlanta to Ontario flight deals updated?

    The Atlanta to Ontario flight deals you see on this page were last updated on 5/30.

  • What are the most popular airlines that fly from Atlanta to Ontario?

    The most popular airlines flying from Atlanta to Ontario are American Airlines, Alaska Airlines and Delta. Something to consider prior to booking your flight.

  • What is the cheapest month to book a flight from Atlanta to Ontario?

    Currently, October is the cheapest month in which you can book a flight from Atlanta to Ontario (average of $238). Flying from Atlanta to Ontario in July is currently the most expensive (average of $328). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Atlanta to Ontario
See prices for flight routes from nearby airports that may be better suited for you.

Atlanta to Las Vegas flights
Atlanta to Los Angeles flights
Atlanta to San Francisco flights
Atlanta to San Diego flights
Atlanta to Burbank flights
Jacksonville to Las Vegas flights
Atlanta to Santa Ana flights
Atlanta to Oakland flights
Atlanta to San Jose flights
Atlanta to Sacramento flights
Jacksonville to Los Angeles flights
Chattanooga to Las Vegas flights
Jacksonville to San Francisco flights
Savannah to Las Vegas flights
Jacksonville to Ontario flights
Atlanta to Reno flights
Tallahassee to Las Vegas flights
Savannah to San Diego flights
Asheville to Las Vegas flights
Jacksonville to San Diego flights
Asheville to Los Angeles flights
Chattanooga to Los Angeles flights
Atlanta to Fresno flights
Asheville to San Francisco flights
Augusta to Las Vegas flights
Savannah to Los Angeles flights
Atlanta to Santa Barbara flights
Chattanooga to San Diego flights
Savannah to San Francisco flights
Augusta to San Francisco flights
Jacksonville to Reno flights
Atlanta to Palm Springs flights
Tallahassee to San Diego flights
Jacksonville to Santa Ana flights
Asheville to San Diego flights
Atlanta to Long Beach flights
Tallahassee to Ontario flights
Augusta to Los Angeles flights
Chattanooga to Ontario flights
Asheville to Burbank flights
Jacksonville to Sacramento flights
Atlanta to Medford flights
Atlanta to Monterey flights
Asheville to Ontario flights
Savannah to Ontario flights
Savannah to Santa Ana flights
Tallahassee to Los Angeles flights
Chattanooga to Reno flights
Asheville to Fresno flights

Top 6 airlines flying from Atlanta to Ontario

Discover the top 6 airlines that operate flights from Atlanta to Ontario. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 30, 2024.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$107Average$190FlexibilityNo cancel feeOn-time65%
Search Spirit Airlines flights
FrontierCheapest$138Average$211FlexibilityNo cancel feeOn-time62%
Search Frontier flights
United AirlinesCheapest$176Average$566FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
DeltaCheapest$225Average$488FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
American AirlinesCheapest$256Average$453FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Alaska AirlinesCheapest$328Average$655FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
Philadelphia to Los Angeles flights
Boston to Atlanta flights
Tampa to Atlanta flights
Chicago to Kansas City flights
New York to Moscow flights
Los Angeles to Manila flights
New York to Europe flights
USA to Israel flights
Cleveland to Chicago flights
USA to Singapore flights
Boston to Los Angeles flights
Atlanta to Coolangatta flights

Search flights from Atlanta to Ontario by cabin class

Find flights from Atlanta to Ontario, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
Business Class
Prem Econ Class
Economy Class

Hourly flight availability from Atlanta to Ontario

Find hourly flight availability from Atlanta to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 30, 2024.
1%of flight departuresEarly morningMidnight to 6 am
14%of flight departuresMorning6 am to noon
69%of flight departuresAfternoonNoon to 6 pm
16%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

Weekly flight availability from Atlanta to Ontario

Explore weekly flight availability from Atlanta to Ontario. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated May 30, 2024.
Sunday7daily flights
Monday7daily flights
Tuesday5daily flights
Wednesday3daily flights
Thursday8daily flights
Friday6daily flights
Saturday4daily flights

Book a flight to one of these trending destinations

User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations
Flights to Laayoune Hassan I
Flights to Virac
Flights to Figari-Sud Corse
Flights to Edremit/Korfez
Flights to Rhinelander Oneida County
Flights to Girona Costa Brava
Flights to Brainerd Crow Wing County
Flights to Parikia Paros
Flights to Cortez Montezuma County
Flights to Miyakojima Hirara
Flights to Zadar
Flights to Trapani Birgi
Flights to Provincetown
Flights to Oran Es Senia
Flights to Constanţa Mihail Kogalniceanu
Flights to Vava'u Lupepau'U
Flights to Urumqi
Flights to Hakodate
Flights to Naxos
Flights to Dalaman
Flights to Hyannis Barnstable
Flights to Devils Lake
Flights to Bastia Poretta
Flights to Karpathos

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Atlanta to Ontario?

Cheapflights makes it easy to find Atlanta to Ontario flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Atlanta to Ontario?

Millions of users choose and trust Cheapflights to book the best flight deals from Atlanta to Ontario for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Atlanta to Ontario with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Atlanta to Ontario, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Atlanta to Ontario become cheaper?

Yes, Cheapflights offers price alerts on Atlanta to Ontario flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
View all available airlines