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 April or May, booked 59 days in advance, depart on a Saturday or Friday 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
$214 - $459
ONT
Temperature
53.6 - 78.8 °F
ONT
Rainfall
0.1 - 3.4 inches

Popular in

December

High demand for flights, 32% potential price rise

Cheapest in

April

Best time to find cheap flights, 32% potential price drop

Round-trip from

$214

From Atlanta Hartsfield-Jackson to Ontario

One-way from

$158

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

August is one of the best times of the year to fly to Ontario from Atlanta. Prices for August average $220 per person but you can even find prices for as low as $74. The most expensive prices can be found in the month of December. Opting for a August flight can save you 56% on your journey compared to booking in December

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 36% on flights from Atlanta to Ontario by exploring options for tickets at noon.

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

Users have found that leaving on a Friday can be a cost-effective option. It’s possible to save up to 47% 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 24 days early can save you up to 36% on average compared to booking a flight this week. If booking 24 days before your flight isn’t an option for you, users have found flights from Atlanta to Ontario for as little as $219 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 $295 for flights departing within the next 3 days.

Cheap flights from Atlanta to Ontario in May, June 2022

The best prices found for ATL to ONT flights for May, June
24 May - 29 May
$307pp
ATL
Atlanta Hartsfield-Jackson
Frontier
 
1 STOP
ONT
Ontario
ONT
Ontario
Frontier
 
1 STOP
ATL
Atlanta Hartsfield-Jackson
19 May - 24 May
$308pp
ATL
Atlanta Hartsfield-Jackson
Frontier
 
1 STOP
ONT
Ontario
ONT
Ontario
Frontier
 
1 STOP
ATL
Atlanta Hartsfield-Jackson
28 May - 30 May
$311pp
ATL
Atlanta Hartsfield-Jackson
Frontier
 
1 STOP
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
17 Aug - 31 Aug
$298pp
ATL
Atlanta Hartsfield-Jackson
Delta
Non-Stop
ONT
Ontario
ONT
Ontario
Delta
Non-Stop
ATL
Atlanta Hartsfield-Jackson
19 Aug - 25 Aug
$307pp
ATL
Atlanta Hartsfield-Jackson
Delta
 
1 STOP
ONT
Ontario
ONT
Ontario
Delta
Non-Stop
ATL
Atlanta Hartsfield-Jackson
19 May - 24 May
$308pp
ATL
Atlanta Hartsfield-Jackson
Frontier
 
1 STOP
ONT
Ontario
ONT
Ontario
Frontier
 
1 STOP
ATL
Atlanta Hartsfield-Jackson

Non-stop flights to Ontario from Atlanta

Save time with Atlanta to Ontario direct flight deals
11 Aug - 19 Aug
$298pp
ATL
Atlanta Hartsfield-Jackson
Delta
Non-Stop
ONT
Ontario
ONT
Ontario
Delta
Non-Stop
ATL
Atlanta Hartsfield-Jackson
4 Aug - 7 Aug
$348pp
ATL
Atlanta Hartsfield-Jackson
Delta
Non-Stop
ONT
Ontario
ONT
Ontario
Delta
Non-Stop
ATL
Atlanta Hartsfield-Jackson
14 Aug - 21 Aug
$358pp
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
24 May - 29 May
$307pp
ATL
Atlanta Hartsfield-Jackson
Frontier
 
1 STOP
ONT
Ontario
ONT
Ontario
Frontier
 
1 STOP
ATL
Atlanta Hartsfield-Jackson
28 May - 30 May
$311pp
ATL
Atlanta Hartsfield-Jackson
Frontier
 
1 STOP
ONT
Ontario
ONT
Ontario
Frontier
 
1 STOP
ATL
Atlanta Hartsfield-Jackson
28 May - 30 May
$345pp
ATL
Atlanta Hartsfield-Jackson
Frontier
 
1 STOP
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
3:32 pm - 8:11 pm
United Airlines
1 Stop
7h 39m
ATL - ONT
United Airlines
$158
United
8:15 am - 5:54 pm
JetBlue
1 Stop
12h 39m
ATL - ONT
JetBlue
1:59 pm - 3:25 pm
Delta
Nonstop
4h 26m
ATL - ONT
Delta
$199
Delta

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 23m 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 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 Delta for just $298, but on average you can expect to pay $340.

Are there nonstop flights from Atlanta to Ontario for under $300 on Cheapflights?

Cheapflights has at least 20 direct flights from Atlanta to Ontario under $300. A good price for a nonstop flight from Atlanta to Ontario is less than $393.

Are there last-minute flights available from Atlanta to Ontario for under $400?

There are currently 20+ open flights from Atlanta to Ontario within the next 7 days for less than $400.

How popular is this Atlanta to Ontario flight route?

Flights from Atlanta Hartsfield-Jackson to Ontario have been viewed 36 times in the past calendar month.

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

According to our current data, Delta ($298), United Airlines ($317), and American Airlines ($320) offers the cheapest pricing from Atlanta to Ontario. These flights start at 5% lower than the current average price 3 months from now.

What are the cheapest airlines to fly from Atlanta to Ontario one-way?

The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $100. However, be on the lookout for offers from United Airlines and JetBlue, as they are both options that can get you from Atlanta to Ontario for a low price.

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 $69. While the most popular route (Atlanta Hartsfield-Jackson - Ontario) can be booked for $298 on average our data indicates $810 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 Delta (87%), KLM (85%) and Air France (74%).

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 must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 1 day for RT-PCR (NAAT) and 1 day for Antigen (quick-test) before departing to 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 must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 1 day for RT-PCR (NAAT) and 1 day for Antigen (quick-test) before departing to 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.

Destination information for Ontario

Things to know before you go - useful duration and weather info for your trip from Atlanta to Ontario.
Flight duration from ATL to ONT
4h 21m

Airports servicing Atlanta

Airports servicing Ontario

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
$68 $195 No cancel fee 62%
American Airlines
$164 $397 No cancel fee 71%
Spirit Airlines
$191 $296 No cancel fee 65%
United Airlines
$203 $418 No cancel fee 69%
Delta
$208 $418 No cancel fee N/A
Alaska Airlines
$384 $535 No cancel fee 75%

Hourly flight availability from Atlanta to Ontario

See what time of day planes typically take off from Atlanta towards Ontario.
Evening 6 PM to midnight 48% of ATL to ONT departures
Afternoon Noon to 6 PM 32% of ATL to ONT departures
Morning 6 AM to noon 19% 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
6 daily flights
Monday
6 daily flights
Tuesday
6 daily flights
Wednesday
6 daily flights
Thursday
6 daily flights
Friday
5 daily flights
Saturday
2 daily flights
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