Cheap flights from Atlanta to Ontario (ATL - ONT)

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The best prices from Atlanta Hartsfield-Jackson to Ontario are usually found in October or September, booked 60 days in advance, depart on a Friday or Saturday and return on a Saturday

How to find the cheapest flight from
Atlanta (ATL) to Ontario (ONT)

All the information you need to plan the best ATL to ONT flight in 2022: compare Atlanta to Ontario flight prices with the expected peak season, weather and rainfall in Ontario.
ATL - ONT
Price
$156 - $511
ONT
Temperature
53.6 - 78.8 °F
ONT
Rainfall
0.1 - 3.4 inches

Popular in

June

High demand for flights, 36% potential price rise

Cheapest in

October

Best time to find cheap flights, 52% potential price drop

Round-trip from

$156

From Atlanta Hartsfield-Jackson to Ontario

One-way from

$118

One-way flight from Atlanta Hartsfield-Jackson to Ontario

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
When is the cheapest time to fly from Atlanta to Ontario (ATL - ONT)?

Unlike in the afternoon, when flights are generally more expensive, you can save up to 34% on flights from Atlanta to Ontario by exploring options for tickets at noon.

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 38 days early can save you up to 32% on average compared to booking a flight this week. If booking 38 days before your flight isn’t an option for you, users have found flights from Atlanta to Ontario for as little as $335 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 $379 for flights departing within the next 3 days.

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

Users have found that leaving on a Thursday 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.

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

January is one of the best times of the year to fly to Ontario from Atlanta. Prices for January average $313 per person but you can even find prices for as low as $132. The most expensive prices can be found in the month of June. Opting for a January flight can save you 80% on your journey compared to booking in June

Cheap flights from Atlanta to Ontario in August, September 2022

The best prices found for ATL to ONT flights for August, September
7 Sep - 13 Sep
$204pp
ATL
Atlanta Hartsfield-Jackson
Multiple Airlines
 
1 STOP
ONT
Ontario
ONT
Ontario
Frontier
 
1 STOP
ATL
Atlanta Hartsfield-Jackson
23 Aug - 27 Aug
$206pp
ATL
Atlanta Hartsfield-Jackson
Multiple Airlines
   
2 STOPS
ONT
Ontario
ONT
Ontario
Frontier
 
1 STOP
ATL
Atlanta Hartsfield-Jackson
24 Aug - 27 Aug
$208pp
ATL
Atlanta Hartsfield-Jackson
Frontier
   
2 STOPS
ONT
Ontario
ONT
Ontario
Frontier
 
1 STOP
ATL
Atlanta Hartsfield-Jackson

Atlanta Hartsfield-Jackson to Ontario 2022 flight deals

Cheap flights to Ontario from Atlanta found for this year
5 Oct - 11 Oct
$203pp
ATL
Atlanta Hartsfield-Jackson
Multiple Airlines
 
1 STOP
ONT
Ontario
ONT
Ontario
Frontier
 
1 STOP
ATL
Atlanta Hartsfield-Jackson
7 Sep - 13 Sep
$204pp
ATL
Atlanta Hartsfield-Jackson
Multiple Airlines
 
1 STOP
ONT
Ontario
ONT
Ontario
Frontier
 
1 STOP
ATL
Atlanta Hartsfield-Jackson
23 Aug - 27 Aug
$206pp
ATL
Atlanta Hartsfield-Jackson
Multiple Airlines
   
2 STOPS
ONT
Ontario
ONT
Ontario
Frontier
 
1 STOP
ATL
Atlanta Hartsfield-Jackson

Cheap Frontier flights from Atlanta to Ontario

24 Aug - 27 Aug
$208pp
ATL
Atlanta Hartsfield-Jackson
Frontier
   
2 STOPS
ONT
Ontario
ONT
Ontario
Frontier
 
1 STOP
ATL
Atlanta Hartsfield-Jackson
19 Aug - 31 Aug
$213pp
ATL
Atlanta Hartsfield-Jackson
Frontier
 
1 STOP
ONT
Ontario
ONT
Ontario
Frontier
 
1 STOP
ATL
Atlanta Hartsfield-Jackson
23 Aug - 27 Aug
$214pp
ATL
Atlanta Hartsfield-Jackson
Frontier
 
1 STOP
ONT
Ontario
ONT
Ontario
Frontier
 
1 STOP
ATL
Atlanta Hartsfield-Jackson

Cheap Delta flights from Atlanta to Ontario

9 Aug - 16 Aug
$483pp
ATL
Atlanta Hartsfield-Jackson
Delta
Non-Stop
ONT
Ontario
ONT
Ontario
Delta
Non-Stop
ATL
Atlanta Hartsfield-Jackson
9 Aug - 16 Aug
$492pp
ATL
Atlanta Hartsfield-Jackson
Delta
 
1 STOP
ONT
Ontario
ONT
Ontario
Delta
Non-Stop
ATL
Atlanta Hartsfield-Jackson
10 Aug - 17 Aug
$501pp
ATL
Atlanta Hartsfield-Jackson
Delta
 
1 STOP
ONT
Ontario
ONT
Ontario
Delta
 
1 STOP
ATL
Atlanta Hartsfield-Jackson

Non-stop flights to Ontario from Atlanta

Save time with Atlanta to Ontario direct flight deals
3 Sep - 9 Sep
$360pp
ATL
Atlanta Hartsfield-Jackson
Delta
Non-Stop
ONT
Ontario
ONT
Ontario
Delta
Non-Stop
ATL
Atlanta Hartsfield-Jackson
1 Oct - 3 Oct
$388pp
ATL
Atlanta Hartsfield-Jackson
Delta
Non-Stop
ONT
Ontario
ONT
Ontario
Delta
Non-Stop
ATL
Atlanta Hartsfield-Jackson
16 Aug - 31 Aug
$393pp
ATL
Atlanta Hartsfield-Jackson
Delta
Non-Stop
ONT
Ontario
ONT
Ontario
Delta
Non-Stop
ATL
Atlanta Hartsfield-Jackson

Last minute flights from Atlanta to Ontario

Late deals on round-trip flights to Ontario from Atlanta, departing today and this week
12 Aug - 15 Aug
$240pp
ATL
Atlanta Hartsfield-Jackson
Multiple Airlines
   
2 STOPS
ONT
Ontario
ONT
Ontario
Multiple Airlines
 
1 STOP
ATL
Atlanta Hartsfield-Jackson
12 Aug - 15 Aug
$244pp
ATL
Atlanta Hartsfield-Jackson
Multiple Airlines
 
1 STOP
ONT
Ontario
ONT
Ontario
Multiple Airlines
 
1 STOP
ATL
Atlanta Hartsfield-Jackson
12 Aug - 17 Aug
$274pp
ATL
Atlanta Hartsfield-Jackson
Multiple Airlines
   
2 STOPS
ONT
Ontario
ONT
Ontario
Frontier
 
1 STOP
ATL
Atlanta Hartsfield-Jackson

One-way flights to Ontario from Atlanta

The cheapest one-way flights from Atlanta to Ontario
8:29 am - 5:45 pm
JetBlue
1 Stop
12h 16m
ATL - ONT
JetBlue
3:50 am - 3:09 am
Multiple Airlines
2 Stops
26h 19m
ATL - ONT
Multiple Airlines
$144
Kiwi.com
1:45 am - 5:38 pm
Frontier
1 Stop
18h 53m
ATL - ONT
Frontier
$147
Kiwi.com

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Atlanta</span> to <span class="emphasized">Ontario</span> flights.

Flight FAQs

From Atlanta to Ontario

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 17m on average. When it comes time to book airfare, you have a few options: there are 4 outbound flights from Hartsfield-Jackson to Ontario offered by 9 different airlines.

Which airlines flying from Atlanta Hartsfield-Jackson to Ontario have flexible cancellations due to COVID-19?

Some of the carriers operating flights from Atlanta Hartsfield-Jackson to Ontario that may be offering flexible cancellation policies are Delta, Frontier, and American Airlines. Our site will let you filter for all airlines offering greater flexibility due to COVID-19.

Can I find flights from Atlanta to Ontario for under $300 on Cheapflights?

Yes, there are multiple flights from Atlanta to Ontario for under $300. The cheapest flight booked recently is on Multiple Airlines for just $204, but on average you can expect to pay $220.

Are there nonstop flights from Atlanta to Ontario for under $400 on Cheapflights?

Cheapflights has at least 20 direct flights from Atlanta to Ontario under $400. A good price for a nonstop flight from Atlanta to Ontario is less than $445.

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.

How popular is this Atlanta to Ontario flight route?

Flights from Atlanta Hartsfield-Jackson to Ontario have been viewed 38 times in the past calendar month.

What are the cheapest airlines flying from Atlanta to Ontario round-trip?

According to our current data, Frontier ($208), and JetBlue ($224) offers the cheapest pricing from Atlanta to Ontario. These flights start at 36% lower than the current average price 3 months from now.

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

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

What are the cheapest flights from Atlanta to Ontario?

Looking at all options, your cheapest flight can be booked for $155. While the most popular route (Atlanta Hartsfield-Jackson - Ontario) can be booked for $215 on average our data indicates $868 when flying from Atlanta to Ontario.

What are the most reliable airlines from Atlanta to Ontario?

The top 3 most reliable airlines when flying from Atlanta to Ontario are Air France (100%), Delta (81%) and KLM (67%).

COVID Restrictions

View COVID Travel Restrictions for Ontario, CA

Do I need a COVID test to fly to Ontario from Atlanta?

Information is based on travel restrictions for travel to Ontario within the United States

Most visitors from Atlanta Hartsfield-Jackson need to provide a negative COVID-19 test result and/or quarantine to enter Ontario.

COVID-19 testing requirements
Visitors from Atlanta Hartsfield-Jackson are not required to present a negative COVID-19 PCR test or antigen result upon entering Ontario.

Quarantine requirements
Visitors from Atlanta Hartsfield-Jackson are not required to quarantine after entering Ontario.

Do I need a test to fly back to Atlanta from Ontario?

Returning to Atlanta Hartsfield-Jackson from Ontario

COVID-19 testing requirements
Visitors from Ontario are not required to present a negative COVID-19 PCR test or antigen result upon entering Atlanta Hartsfield-Jackson.

Quarantine requirements
Visitors from Ontario are not required to quarantine after entering Atlanta Hartsfield-Jackson.

Hide COVID Travel Restrictions for Ontario, CA

Alternative routes for Atlanta to Ontario

See prices for flight routes from nearby airports that may be better suited for you.

Top 7 airlines flying from Atlanta Hartsfield-Jackson to Ontario

The chart below displays the airlines Cheapflights users traveling from Atlanta to Ontario choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Airline Cheapest Average Flexibility On-time COVID-19 safety
Juneyao Airlines
$15 $20 No cancel fee 66%

We couldn't confirm the COVID-19 safety measures taken by Juneyao Airlines. Please check directly on their website for additional information.

Frontier
$70 $223 No cancel fee 62%
American Airlines
$186 $446 No cancel fee 71%
Spirit Airlines
$191 $345 No cancel fee 65%
Delta
$248 $468 No cancel fee N/A
United Airlines
$258 $476 No cancel fee 69%
Alaska Airlines
$439 $558 No cancel fee 75%

Hourly flight availability from Atlanta to Ontario

See what time of day planes typically take off from Atlanta towards Ontario.
Afternoon Noon to 6 PM 37% of ATL to ONT departures
Evening 6 PM to midnight 37% of ATL to ONT departures
Morning 6 AM to noon 25% of ATL to ONT departures
Early morning Midnight to 6 AM 1% of ATL to ONT departures
Midnight
6 AM
Noon
6 PM
Weekly flight availability
from Atlanta to Ontario
See how many times per day planes take to the skies headed from Atlanta to Ontario.
Sunday
3 daily flights
Monday
5 daily flights
Tuesday
5 daily flights
Wednesday
5 daily flights
Thursday
5 daily flights
Friday
5 daily flights
Saturday
4 daily flights