$288 Cheap Flights from Augusta (AGS) to Ontario (ONT)

View $288 flight on Sat, Nov 15, 2025Opens in a new window

Popular airlines from Augusta Regional Airport (AGS) to Los Angeles - Ontario Intl. Airport (ONT)

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 30% on select hotels after you book a flight*
  • one key icon

    Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

Cheap Flights from Augusta to Ontario (AGS-ONT)

Prices were available within the past 7 days and start at $288 for one-way flights and $331 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Wed, Nov 12 - Wed, Nov 26
AGS
Augusta
ONT
Ontario
$331 Roundtrip, found 6 hours ago
$331
Roundtrip
found 6 hours ago
Select Delta flight, departing Wed, Nov 12 from Augusta to Ontario, returning Wed, Nov 26, priced at $331 found 6 hours ago
Delta
Tue, Nov 11 - Wed, Nov 26
AGS
Augusta
ONT
Ontario
$336 Roundtrip, found 6 hours ago
$336
Roundtrip
found 6 hours ago
Select Delta flight, departing Tue, Nov 11 from Augusta to Ontario, returning Wed, Nov 26, priced at $336 found 6 hours ago
Delta
Wed, Nov 26 - Tue, Jan 6
AGS
Augusta
ONT
Ontario
$355 Roundtrip, found 2 days ago
$355
Roundtrip
found 2 days ago
Select Delta flight, departing Wed, Nov 26 from Augusta to Ontario, returning Tue, Jan 6, priced at $355 found 2 days ago
Delta
Thu, Nov 27 - Wed, Dec 3
AGS
Augusta
ONT
Ontario
$360 Roundtrip, found 3 days ago
$360
Roundtrip
found 3 days ago
Select Delta flight, departing Thu, Nov 27 from Augusta to Ontario, returning Wed, Dec 3, priced at $360 found 3 days ago
Delta
Wed, Nov 26 - Wed, Jan 7
AGS
Augusta
ONT
Ontario
$379 Roundtrip, found 2 days ago
$379
Roundtrip
found 2 days ago
Select Delta flight, departing Wed, Nov 26 from Augusta to Ontario, returning Wed, Jan 7, priced at $379 found 2 days ago
Delta
Tue, Oct 14 - Tue, Oct 28
AGS
Augusta
ONT
Ontario
$381 Roundtrip, found 4 days ago
$381
Roundtrip
found 4 days ago
Select Delta flight, departing Tue, Oct 14 from Augusta to Ontario, returning Tue, Oct 28, priced at $381 found 4 days ago
Delta
Wed, Nov 12 - Tue, Dec 2
AGS
Augusta
ONT
Ontario
$385 Roundtrip, found 6 hours ago
$385
Roundtrip
found 6 hours ago
Select Delta flight, departing Wed, Nov 12 from Augusta to Ontario, returning Tue, Dec 2, priced at $385 found 6 hours ago
American Airlines
Sat, Dec 6 - Wed, Dec 10
AGS
Augusta
ONT
Ontario
$386 Roundtrip, found 1 day ago
$386
Roundtrip
found 1 day ago
Select American Airlines flight, departing Sat, Dec 6 from Augusta to Ontario, returning Wed, Dec 10, priced at $386 found 1 day ago
Delta
Tue, Nov 11 - Tue, Dec 2
AGS
Augusta
ONT
Ontario
$390 Roundtrip, found 6 hours ago
$390
Roundtrip
found 6 hours ago
Select Delta flight, departing Tue, Nov 11 from Augusta to Ontario, returning Tue, Dec 2, priced at $390 found 6 hours ago
Delta
Mon, Nov 10 - Wed, Nov 26
AGS
Augusta
ONT
Ontario
$393 Roundtrip, found 6 hours ago
$393
Roundtrip
found 6 hours ago
Select Delta flight, departing Mon, Nov 10 from Augusta to Ontario, returning Wed, Nov 26, priced at $393 found 6 hours ago

Find the cheapest month to fly from Augusta (AGS) to Ontario (ONT)

August is typically the cheapest month to fly

From $330 - $622 per traveler.

Alternative airports near Ontario

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to John Wayne SNA. Average driving time to city center is 42 minutes. Flights from $549
SNA
John Wayne
Average driving time to city center42 min
Flights from $549
Flights from Augusta (AGS) to Ontario (ONT)
Origin airport
Augusta Regional
Destination airport
Los Angeles - Ontario Intl.
Airlines serving
American Airlines, Delta
Roundtrip price
$330
Distance
2036 mi

Augusta to Ontario Flights

The cheapest times to fly from Augusta to Ontario

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Augusta to Ontario are during the month of November. You can find some of the cheapest flights from Augusta to Ontario with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Augusta to Ontario

Sunday is one of the best days to book for cheap flights from Augusta to Ontario: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Augusta to Ontario

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Augusta to Ontario in 2025. You can also book with separate airlines for your outbound and return journeys, from $288 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Augusta to Ontario flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Augusta to Ontario airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Augusta Regional Airport (AGS) to Los Angeles - Ontario Intl. Airport (ONT) cost?
Lock in a cheap one-way flight from $288 or cheap return flight from $331 from Augusta Regional Airport (AGS) to Los Angeles - Ontario Intl. Airport (ONT) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Augusta Regional Airport (AGS) to Los Angeles - Ontario Intl. Airport (ONT)?
November is the least expensive month to fly from AGS to ONT. Traveling outside of peak seasons is often the key to finding better deals on flights.
What is the cheapest airline that flies from Augusta Regional Airport (AGS) to Los Angeles - Ontario Intl. Airport (ONT)?
To find the cheapest airline flying from AGS to ONT, use Expedia's filter tool. Tailor your search based on your travel needs, such as preferred carriers and seat class. You can then sort your results by "Price (lowest to highest)" to see the most affordable options first.
How many flights per day from Augusta Regional Airport (AGS) to Los Angeles - Ontario Intl. Airport (ONT)?
There are no daily direct flights departing from Augusta Regional Airport (AGS) to Los Angeles - Ontario Intl. Airport (ONT). But you can book flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be cruising above the clouds in no time at all.
What day of the week has the most flights from AGS to ONT?
Friday is usually the busiest day for flights, while Tuesday is often the quietest.* Keep in mind that flight schedules can change depending on a range of factors, such as the season and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Augusta Regional Airport (AGS) to Los Angeles - Ontario Intl. Airport (ONT)?
Opt for a flight from Augusta Regional Airport (AGS) to Los Angeles - Ontario Intl. Airport (ONT) that takes off before 3 PM to reduce the likelihood of delays and cancellations. Later departures have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Augusta Regional Airport (AGS) to Los Angeles - Ontario Intl. Airport (ONT) last-minute?
Waiting until just before your departure to book a ticket from AGS to ONT generally means paying more. While it's possible to find some last-minute offers, they aren't always guaranteed. Be flexible with your travel plans for the best chance of snagging a bargain.
Is it cheaper to book an AGS to ONT flight and hotel package?
You'll generally save money by booking an AGS to ONT flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one place. After selecting your ideal accommodations and flights, you can add extras such as tours, activities and car rentals.
Can I cancel or change the date of my flight from Augusta Regional Airport (AGS) to Los Angeles - Ontario Intl. Airport (ONT)?
Typically, it's possible to reschedule or cancel your AGS to ONT flight. However, if it's been more than 24 hours since booking, additional fees may apply. Check your airline's policies in your itinerary to see what changes are allowed and whether any costs are involved. You'll also find further details on our Customer Service portal.

Explore a world of travel with Expedia

*Available to One Key members.