Find Cheap Flights from Atlanta to Ontario (ATL - LAX)

Flights overview

Useful information for finding cheap flights from Atlanta to Ontario and booking your next trip

Cheapest round-trip flights	$210	Frontier 1 stop 17 hr Thu, May 28 — Fri, Jun 5	The cheapest round-trip flight from Atlanta to Ontario is currently $210
Cheapest one-way flight	$111	Frontier 1 stop 20 hr Wed, May 27	The cheapest one-way flight from Atlanta to Ontario is currently $111
Cheapest nonstop flights	$439	Delta Nonstop 5 hr Thu, Jul 30 — Wed, Aug 5	The cheapest nonstop round-trip flight from Atlanta to Ontario is currently $439
Last-minute weekend getaway	$260	Frontier 1 stop 17 hr Sat, May 9 — Mon, May 11	The cheapest last-minute weekend getaway from Atlanta to Ontario is currently $260
Cheapest business class flights	$458	Frontier 1 stop 17 hr Thu, May 28 — Fri, Jun 5	The cheapest business class round-trip flight from Atlanta to Ontario is currently $458

Fastest flight	4 hr 17 min	The fastest nonstop flight from Atlanta to Ontario takes 4 hr 17 min
Nonstop flights	Every day	There are direct flights on this route every day.

When is the cheapest time to fly?

The cheapest month to fly from Atlanta to Ontario is typically September. The most expensive month to fly is typically July.

September Cheapest	Typical prices: $150–285
July Most expensive	Typical prices: $250–350

Popular airlines from Atlanta to Ontario

Delta

Nonstop

from $439

Typical price: $395–690

21 weekly nonstop flights

ATL - ONT Every day

118 weekly connecting flights

ATL - ONT Every day
Southwest

from $406

Typical price: $365–640

598 weekly connecting flights

ATL - ONT Every day
American

from $459

Typical price: $395–670

269 weekly connecting flights

ATL - ONT Every day
United

from $398

Typical price: $370–680

81 weekly connecting flights

ATL - ONT Every day
Frontier

from $210

Typical price: $180–345

42 weekly connecting flights

ATL - ONT Every day
Alaska

from $468

Typical price: $395–790

21 weekly connecting flights

ATL - ONT Every day

Popular airports near Atlanta

Hartsfield-Jackson Atlanta International Airport (ATL)

Atlanta United States 14 min 8 mi
Birmingham-Shuttlesworth International Airport (BHM)

Birmingham United States 2 hr 11 min 136 mi
Greenville-Spartanburg International Airport (GSP)

Greenville United States 2 hr 29 min 147 mi
Chattanooga Metropolitan Airport (CHA)

Chattanooga United States 1 hr 48 min 100 mi

Popular airports near Ontario

Ontario International Airport (ONT)

Ontario United States 11 min 2 mi
Los Angeles International Airport (LAX)

Los Angeles United States 1 hr 7 min 44 mi
Tijuana International Airport (TIJ)

Tijuana Mexico 2 hr 16 min 112 mi
San Diego International Airport (SAN)

San Diego United States 1 hr 50 min 95 mi

Frequently asked questions about flying from Atlanta to Ontario

The cheapest flights from Atlanta to Ontario are usually in September. Typical ticket prices in September range from $150 to $285.

The cheapest round-trip flight from Atlanta to Ontario recently found on Google Flights was with Frontier from $210. The cheapest one-way flight was with Frontier from $111.

Some of the cheapest round-trip deals we found with different airlines:

The cheapest Delta flight from Atlanta to Ontario is $439, flying from Jul 30 to Aug 5.
The cheapest Southwest flight from Atlanta to Ontario is $406, flying from Jun 1 to Jun 9.
The cheapest American flight from Atlanta to Ontario is $459, flying from Jun 4 to Jun 10.
The cheapest United flight from Atlanta to Ontario is $398, flying from May 28 to Jun 3.
The cheapest Frontier flight from Atlanta to Ontario is $210, flying from May 28 to Jun 5.
The cheapest Alaska flight from Atlanta to Ontario is $468, flying from Jul 31 to Aug 8.

The cheapest round-trip flight from Atlanta to Ontario starts at $210 from Thu, May 28 to Fri, Jun 5. The cheapest one-way flight starts at $111 and departs on Wed, May 27.

4 hr 17 min is the shortest flight time from Atlanta to Ontario.

Ontario is a year-round destination, with mild to warm weather for much of the year. Summers (Jun–Aug) tend to be hot, while winters (Dec–Feb) are typically mild. There is a slightly higher chance of rain Jan–Apr. The Road to California (Jan) is a quilt show featuring quilting competitions, classes and exhibits. The city celebrates Independence Day (Jul 4) with a parade, picnic and fireworks display. The Route 66 Cruisin' Reunion (Sep) attracts vintage cars from around the country.

It's easy to use Google Flights to find the cheapest days to fly from Atlanta to Ontario.
Just click the Departure label near the top of the page to open the calendar. Choose a start date and a return date to see how the round-trip fare changes on those specific days.
Adjust the trip type to see one-way fares. The cheapest available flights are highlighted and easy to spot. Once you settle on dates, click the Search button to see flight options and book the deal.

You can also turn on price tracking to get alerts if the price changes for a route or flight.

What counts as the best airline for your flights from Atlanta to Ontario really depends on your individual needs. You may have a favorite carrier or a loyalty program you like, but price, convenience, and airports served also come into play. Flexibility and booking terms – Can you change flights if you want to stay longer or get a refund if you have to postpone your trip? – are also factors that help determine which airline is best to fly from Atlanta to Ontario.

In terms of nonstop flights, Delta is the most popular. Delta offers 21 nonstop flights and 118 connecting flights per week. Delta flies from Hartsfield-Jackson Atlanta International Airport (ATL) to Ontario International Airport (ONT) .

In terms of flights, Southwest is the most popular. Southwest offers 598 connecting flights per week. Southwest flies from Hartsfield-Jackson Atlanta International Airport (ATL) to Ontario International Airport (ONT) .

Other popular airlines flying from Atlanta to Ontario are:

American offers 269 connecting flights per week. American flies from Hartsfield-Jackson Atlanta International Airport (ATL) to Ontario International Airport (ONT) .
United offers 81 connecting flights per week. United flies from Hartsfield-Jackson Atlanta International Airport (ATL) to Ontario International Airport (ONT) .
Frontier offers 42 connecting flights per week. Frontier flies from Hartsfield-Jackson Atlanta International Airport (ATL) to Ontario International Airport (ONT) .
Alaska offers 21 connecting flights per week. Alaska flies from Hartsfield-Jackson Atlanta International Airport (ATL) to Ontario International Airport (ONT) .

The number of connecting flights refers to distinct flights with at least one stop between Atlanta and Ontario.

The cheapest round-trip flight from Atlanta to Ontario recently found on Google Flights was with Frontier from $210. The cheapest one-way flight was with Frontier from $111.

Some of the cheapest round-trip deals we found with different airlines:

The cheapest Delta flight from Atlanta to Ontario is $439, flying from Jul 30 to Aug 5.
The cheapest Southwest flight from Atlanta to Ontario is $406, flying from Jun 1 to Jun 9.
The cheapest American flight from Atlanta to Ontario is $459, flying from Jun 4 to Jun 10.
The cheapest United flight from Atlanta to Ontario is $398, flying from May 28 to Jun 3.
The cheapest Frontier flight from Atlanta to Ontario is $210, flying from May 28 to Jun 5.
The cheapest Alaska flight from Atlanta to Ontario is $468, flying from Jul 31 to Aug 8.

Delta flies direct from Atlanta to Ontario.

There are 21 Delta direct flights from Atlanta to Ontario per week. Flights are available every day.

Use the Stops filter while searching for flights, to see only nonstop options in your results.

The cheapest last-minute deal between Atlanta and Ontario at price $260 is offered by Frontier from Sat, May 9 to Mon, May 11.

Delta flies direct from Atlanta to Ontario.

There are 21 Delta direct flights from Atlanta to Ontario per week. Flights are available every day.

Use the Stops filter while searching for flights, to see only nonstop options in your results.

There are direct flights from Atlanta to Ontario on a daily basis.

The cheapest direct (nonstop) round-trip flights between Atlanta and Ontario start at $439 from Thu, Jul 30 to Wed, Aug 5 with Delta.

It's easy to find nonstop flights with Google Flights! Once you've searched for flights from Atlanta to Ontario, just select the nonstop flights only option in the 'Stops’ filter in the search form and view all available direct flights and their prices.

The cheapest business class round-trip flights between Atlanta and Ontario start at $458 from Thu, May 28 to Fri, Jun 5 with Frontier.

The cheapest economy class round-trip flights between Atlanta and Ontario start at $210 from Thu, May 28 to Fri, Jun 5.

To book business class trips from Atlanta to Ontario, look for the default Economy selection at the top, and change it to your desired cabin class such as Premium Economy, Business Class, or First Class. You can then select your departure and arrival dates, consider available options, and book your business travel.

You can also adjust the trip type to view one-way fares.

The best last-minute getaway deal for the next weekend between Atlanta and Ontario starts at $260 from Sat, May 9 to Mon, May 11 with Frontier.

The cheapest last-minute deal between Atlanta and Ontario at price $260 is offered by Frontier from Sat, May 9 to Mon, May 11.

To find last-minute flight deals from Atlanta to Ontario, start by entering the city names, select the desired departure and return dates, and hit the Search button to view flight options.

You can check for last-minute flights for the same day or adjust the trip type to see one-way fares.