Cheap flights from Atlanta to Ontario (ATL - ONT) from $77

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 7/2. 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 17 — Jun 241

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 Monday

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 June 12, 2024.

Popular in

March

Cheapest in

August

Round-trip from

$238

One-way from

$77
High demand for flights, 28% potential price rise
Best time to find cheap flights, 28% potential price drop
From Atlanta Hartsfield-Jackson to Ontario
One-way flight from Atlanta Hartsfield-Jackson to Ontario

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 44% 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 Atlanta to Ontario flights in June & July 2024

Find cheap flight options from Atlanta to Ontario specifically for the months of June and July 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,117,830 searches. Prices were last updated on June 12, 2024.
The lowest fares we've come across on flights traveling from Atlanta to Ontario in June and July 2024. Check back regularly for other flight deals.
Fri 7/1910:27 pmATL - ONT
1 stop28h 29mFrontier
Mon 7/227:42 pmONT - ATL
1 stop7h 24mFrontier
Deal found 6/11$214
Thu 6/2010:09 pmATL - ONT
1 stop28h 31mFrontier
Tue 6/257:26 pmONT - ATL
1 stop8h 18mFrontier
Deal found 6/11$215
Tue 7/2310:28 pmATL - ONT
1 stop11h 49mFrontier
Fri 7/2612:39 amONT - ATL
1 stop12h 26mFrontier
Deal found 6/11$218
Thu 7/114:40 pmATL - ONT
1 stop10h 16mFrontier
Sun 7/141:45 pmONT - ATL
1 stop13h 21mFrontier
Deal found 6/11$219
Fri 7/512:55 pmATL - ONT
1 stop13h 45mFrontier
Sat 7/137:46 pmONT - ATL
1 stop8h 04mFrontier
Deal found 6/11$220
Fri 7/58:31 amATL - ONT
1 stop7h 32mFrontier
Fri 7/128:36 pmONT - ATL
1 stop7h 15mFrontier
Deal found 6/12$221
Sat 7/205:20 pmATL - ONT
1 stop9h 36mFrontier
Mon 7/2212:49 amONT - ATL
1 stop26h 17mFrontier
Deal found 6/10$222
Thu 7/258:15 amATL - ONT
1 stop29h 08mFrontier
Mon 7/2912:49 amONT - ATL
1 stop26h 17mFrontier
Deal found 6/12$223
Tue 7/27:53 amATL - ONT
1 stop10h 01mFrontier
Mon 7/89:08 pmONT - ATL
1 stop11h 28mFrontier
Deal found 6/11$224

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 3,117,830 searches. Data last updated June 12, 2024.
The lowest fares we've come across on flights traveling from Atlanta to Ontario in June and July 2024. Check back regularly for other flight deals.
Fri 7/1910:27 pmATL - ONT
1 stop28h 29mFrontier
Mon 7/227:42 pmONT - ATL
1 stop7h 24mFrontier
Deal found 6/11$214
Thu 6/2010:09 pmATL - ONT
1 stop28h 31mFrontier
Tue 6/257:26 pmONT - ATL
1 stop8h 18mFrontier
Deal found 6/11$215
Tue 7/2310:28 pmATL - ONT
1 stop11h 49mFrontier
Fri 7/2612:39 amONT - ATL
1 stop12h 26mFrontier
Deal found 6/11$218
Fri 9/610:29 pmATL - ONT
1 stop11h 01mFrontier
Sun 9/812:49 amONT - ATL
1 stop8h 02mFrontier
Deal found 6/11$219
Fri 7/512:55 pmATL - ONT
1 stop13h 45mFrontier
Sat 7/137:46 pmONT - ATL
1 stop8h 04mFrontier
Deal found 6/11$220
Fri 7/58:31 amATL - ONT
1 stop7h 32mFrontier
Fri 7/128:36 pmONT - ATL
1 stop7h 15mFrontier
Deal found 6/12$221
Sat 7/205:20 pmATL - ONT
1 stop9h 36mFrontier
Mon 7/2212:49 amONT - ATL
1 stop26h 17mFrontier
Deal found 6/10$222
Thu 7/258:15 amATL - ONT
1 stop29h 08mFrontier
Mon 7/2912:49 amONT - ATL
1 stop26h 17mFrontier
Deal found 6/12$223
Tue 7/27:53 amATL - ONT
1 stop10h 01mFrontier
Mon 7/89:08 pmONT - ATL
1 stop11h 28mFrontier
Deal found 6/11$224

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 3,117,830 searches. Data last updated June 12, 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.
Thu 6/2010:09 pmATL - ONT
1 stop28h 31mFrontier
Tue 6/257:26 pmONT - ATL
1 stop8h 18mFrontier
Deal found 6/11$215
Thu 6/2010:09 pmATL - ONT
1 stop28h 31mFrontier
Thu 7/410:29 pmONT - ATL
1 stop12h 37mFrontier
Deal found 6/11$237
Tue 6/187:53 amATL - ONT
1 stop8h 01mFrontier
Tue 6/1812:59 amONT - ATL
1 stop7h 38mFrontier
Deal found 6/11$240
Thu 6/2010:09 pmATL - ONT
1 stop28h 31mFrontier
Tue 6/255:26 pmONT - ATL
1 stop10h 18mFrontier
Deal found 6/11$241
Thu 6/2010:09 pmATL - ONT
1 stop28h 31mFrontier
Thu 6/2710:29 pmONT - ATL
1 stop12h 19mFrontier
Deal found 6/11$245
Tue 6/187:53 amATL - ONT
1 stop8h 01mFrontier
Tue 6/257:59 amONT - ATL
1 stop20h 08mFrontier
Deal found 6/11$246
Thu 6/2010:09 pmATL - ONT
1 stop28h 31mFrontier
Mon 6/2412:49 amONT - ATL
1 stop7h 43mFrontier
Deal found 6/11$248
Tue 6/187:53 amATL - ONT
1 stop8h 01mFrontier
Mon 7/112:59 amONT - ATL
1 stop7h 33mFrontier
Deal found 6/11$252
Mon 6/173:39 pmATL - ONT
1 stop8h 57mFrontier
Sat 7/137:59 pmONT - ATL
1 stop10h 04mFrontier
Deal found 6/11$259

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 3,117,830 searches. Data last updated June 12, 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.
Tue 7/27:53 amATL - ONT
1 stop8h 01mFrontier
Deal found 6/11$77
Wed 7/108:35 amATL - ONT
1 stop9h 27mFrontier
Deal found 6/11$79
Tue 7/2310:28 pmATL - ONT
1 stop11h 49mFrontier
Deal found 6/11$82
Tue 7/910:28 pmATL - ONT
1 stop11h 49mFrontier
Deal found 6/10$83
Tue 7/3010:28 pmATL - ONT
1 stop11h 49mFrontier
Deal found 6/10$85
Mon 8/1212:55 pmATL - ONT
1 stop8h 47mFrontier
Deal found 6/11$88
Tue 7/1610:28 pmATL - ONT
1 stop11h 49mFrontier
Deal found 6/10$90
Fri 8/167:59 pmATL - ONT
1 stop13h 08mFrontier
Deal found 6/11$93
Wed 10/27:59 pmATL - ONT
1 stop13h 08mFrontier
Deal found 6/11$94

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 3,117,830 searches. Data last updated June 12, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$154 - $333

Route

Depart

Return

Price

Atlanta Hartsfield-JacksonOntario

ATL - ONT

ATLONT

Atlanta Hartsfield-Jackson

Tue 7/2

1 stop8h 01m

Ontario

Tue 7/16

1 stop8h 49m

$154

Atlanta Hartsfield-JacksonOntario

ATL - ONT

ATLONT

Atlanta Hartsfield-Jackson

Tue 7/16

1 stop11h 49m

Ontario

Tue 7/23

1 stop18h 39m

$156

Atlanta Hartsfield-JacksonOntario

ATL - ONT

ATLONT

Atlanta Hartsfield-Jackson

Tue 7/9

1 stop28h 11m

Ontario

Tue 7/16

1 stop8h 49m

$157

Atlanta Hartsfield-JacksonOntario

ATL - ONT

ATLONT

Atlanta Hartsfield-Jackson

Tue 7/23

1 stop11h 49m

Ontario

Tue 7/30

1 stop7h 42m

$158

Atlanta Hartsfield-JacksonOntario

ATL - ONT

ATLONT

Atlanta Hartsfield-Jackson

Wed 7/24

1 stop15h 51m

Ontario

Mon 7/29

1 stop26h 17m

$159

Atlanta Hartsfield-JacksonOntario

ATL - ONT

ATLONT

Atlanta Hartsfield-Jackson

Tue 7/9

1 stop11h 49m

Ontario

Tue 7/16

1 stop8h 49m

$160

Atlanta Hartsfield-JacksonOntario

ATL - ONT

ATLONT

Atlanta Hartsfield-Jackson

Tue 8/6

1 stop14h 07m

Ontario

Wed 8/7

1 stop10h 29m

$162

Atlanta Hartsfield-JacksonOntario

ATL - ONT

ATLONT

Atlanta Hartsfield-Jackson

Wed 8/7

1 stop28h 45m

Ontario

Wed 8/28

1 stop15h 18m

$168

Atlanta Hartsfield-JacksonOntario

ATL - ONT

ATLONT

Atlanta Hartsfield-Jackson

Sat 10/5

1 stop11h 52m

Ontario

Sat 10/26

1 stop12h 11m

$333

Flights are sorted by cheapest first

Deals found on 6/11

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 31, 2024.
To ensure you get the cheapest price possible for a flight from Atlanta to Ontario, you should look to book at least 56 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 June 9, 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

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 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 June 12, 2024.
Get a feel of what it's like to fly with American Airlines, Frontier 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.
Southwest
8.2
Very good
5,877 reviews

Entertainment

7.8

Comfort

8.1

Overall

8.2

Boarding

8.3

Crew

8.7

Food

7.3

Reviews

1 / 10

Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.

Southwest
8.2
Very good
5,877 reviews
Southwest
8.2
Very good
5,877 reviews

Entertainment

7.8

Comfort

8.1

Overall

8.2

Boarding

8.3

Crew

8.7

Food

7.3

Reviews

1 / 10

Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.

8.1
Very good
9,269 reviews
Southwest
8.2
Very good
5,877 reviews

Entertainment

7.8

Comfort

8.1

Overall

8.2

Boarding

8.3

Crew

8.7

Food

7.3

Reviews

1 / 10

Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.

8.0
Very good
10,000 reviews
Southwest
8.2
Very good
5,877 reviews

Entertainment

7.8

Comfort

8.1

Overall

8.2

Boarding

8.3

Crew

8.7

Food

7.3

Reviews

1 / 10

Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.

7.5
Good
2,838 reviews
Southwest
8.2
Very good
5,877 reviews

Entertainment

7.8

Comfort

8.1

Overall

8.2

Boarding

8.3

Crew

8.7

Food

7.3

Reviews

1 / 10

Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.

7.4
Good
10,000 reviews
Southwest
8.2
Very good
5,877 reviews

Entertainment

7.8

Comfort

8.1

Overall

8.2

Boarding

8.3

Crew

8.7

Food

7.3

Reviews

1 / 10

Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.

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 $154, but on average you can expect to pay $172.

  • 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 $596.

  • Are there last-minute flights available from Atlanta to Ontario for under $300?

    There are currently 20+ open flights from Atlanta to Ontario within the next 7 days for less than $300.

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

    Nonstop flights can be found on the following days: Friday.

  • How popular is this Atlanta to Ontario flight route?

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

    On average 2 flights depart from Atlanta to Ontario per day.
    Evening (6pm - Midnight) - 100% 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 8h 01m. 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 ($154), offers the cheapest pricing from Atlanta to Ontario. This flight start at 57% 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%), Virgin Atlantic (85%) and LATAM Airlines (78%).

  • What are the cheapest flights from Atlanta to Ontario?

    Looking at all options, your cheapest flight can be booked for $348. While the most popular route (Atlanta Hartsfield-Jackson - Ontario) can be booked for $177 on average our data indicates $545 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 6/12.

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

  • 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 $318). 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

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

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 3,117,830 searches. Data last updated June 12, 2024.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$107Average$190FlexibilityNo cancel feeOn-time65%
FrontierCheapest$138Average$208FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$176Average$508FlexibilityNo cancel feeOn-time69%
DeltaCheapest$225Average$498FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$256Average$451FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$328Average$655FlexibilityNo cancel feeOn-time75%

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.

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 June 12, 2024.
0%of flight departuresEarly morningMidnight to 6 am
16%of flight departuresMorning6 am to noon
48%of flight departuresAfternoonNoon to 6 pm
36%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 June 12, 2024.
Sunday7daily flights
Monday7daily flights
Tuesday5daily flights
Wednesday3daily flights
Thursday8daily flights
Friday6daily flights
Saturday4daily flights
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