$196 Cheap Flights from Appleton (ATW) to Ontario (ONT)

View $196 flight on Wed, Nov 19, 2025Opens in a new window

Popular airlines from Appleton, WI (ATW-Appleton Intl.) to Los Angeles - Ontario Intl. Airport (ONT)

Cheap Flights from Appleton to Ontario (ATW-ONT)

Prices were available within the past 7 days and start at $196 for one-way flights and $289 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, Nov 18 - Sat, Dec 6
ATW
Appleton
ONT
Ontario
$289 Roundtrip, found 1 day ago
$289
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Nov 18 from Appleton to Ontario, returning Sat, Dec 6, priced at $289 found 1 day ago
Delta
Thu, Nov 27 - Sat, Dec 6
ATW
Appleton
ONT
Ontario
$294 Roundtrip, found 16 hours ago
$294
Roundtrip
found 16 hours ago
Select Delta flight, departing Thu, Nov 27 from Appleton to Ontario, returning Sat, Dec 6, priced at $294 found 16 hours ago
United
Tue, Oct 21 - Tue, Nov 4
ATW
Appleton
ONT
Ontario
$304 Roundtrip, found 2 days ago
$304
Roundtrip
found 2 days ago
Select United flight, departing Tue, Oct 21 from Appleton to Ontario, returning Tue, Nov 4, priced at $304 found 2 days ago
United
Fri, Nov 7 - Mon, Nov 10
ATW
Appleton
ONT
Ontario
$311 Roundtrip, found 3 hours ago
$311
Roundtrip
found 3 hours ago
Select United flight, departing Fri, Nov 7 from Appleton to Ontario, returning Mon, Nov 10, priced at $311 found 3 hours ago
United
Sat, May 2 - Sat, May 9
ATW
Appleton
ONT
Ontario
$313 Roundtrip, found 2 days ago
$313
Roundtrip
found 2 days ago
Select United flight, departing Sat, May 2 from Appleton to Ontario, returning Sat, May 9, priced at $313 found 2 days ago
United
Fri, Nov 7 - Wed, Nov 12
ATW
Appleton
ONT
Ontario
$314 Roundtrip, found 5 hours ago
$314
Roundtrip
found 5 hours ago
Select United flight, departing Fri, Nov 7 from Appleton to Ontario, returning Wed, Nov 12, priced at $314 found 5 hours ago
United
Tue, Oct 21 - Tue, Nov 4
ATW
Appleton
ONT
Ontario
$314 Roundtrip, found 2 days ago
$314
Roundtrip
found 2 days ago
Select United flight, departing Tue, Oct 21 from Appleton to Ontario, returning Tue, Nov 4, priced at $314 found 2 days ago
United
Sat, Jan 17 - Sat, Jan 24
ATW
Appleton
ONT
Ontario
$318 Roundtrip, found 3 days ago
$318
Roundtrip
found 3 days ago
Select United flight, departing Sat, Jan 17 from Appleton to Ontario, returning Sat, Jan 24, priced at $318 found 3 days ago
United
Tue, Oct 21 - Tue, Nov 4
ATW
Appleton
ONT
Ontario
$319 Roundtrip, found 2 days ago
$319
Roundtrip
found 2 days ago
Select United flight, departing Tue, Oct 21 from Appleton to Ontario, returning Tue, Nov 4, priced at $319 found 2 days ago
American Airlines
Sat, Nov 8 - Thu, Nov 13
ATW
Appleton
ONT
Ontario
$354 Roundtrip, found 1 day ago
$354
Roundtrip
found 1 day ago
Select American Airlines flight, departing Sat, Nov 8 from Appleton to Ontario, returning Thu, Nov 13, priced at $354 found 1 day ago

Find the cheapest month to fly from Appleton (ATW) to Ontario (ONT)

May is typically the cheapest month to fly

From $256 - $564 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 $484
SNA
John Wayne
Average driving time to city center42 min
Flights from $484
Flights from Appleton (ATW) to Ontario (ONT)
Origin airport
Appleton Intl.
Destination airport
Los Angeles - Ontario Intl.
Airlines serving
American Airlines, Delta, United
Roundtrip price
$288
Distance
1697 mi

Appleton to Ontario Flights

The cheapest times to fly from Appleton 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 Appleton to Ontario are during the month of November. You can find some of the cheapest flights from Appleton to Ontario with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Appleton to Ontario

Sunday is one of the best days to book for cheap flights from Appleton 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 Appleton 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 Appleton to Ontario in 2025. You can also book with separate airlines for your outbound and return journeys, from $196 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 Appleton 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 Appleton 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 Appleton Intl. Airport (ATW) to Los Angeles - Ontario Intl. Airport (ONT) cost?
Lock in a cheap one-way flight from $196 or cheap return flight from $289 from Appleton Intl. Airport (ATW) to Los Angeles - Ontario Intl. Airport (ONT) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Appleton Intl. Airport (ATW) to Los Angeles - Ontario Intl. Airport (ONT)?
Traveling in November may help you find better deals, as it's the cheapest month for flights between ATW and ONT. You'll usually find the lowest prices during the off-season.
What is the cheapest airline that flies from Appleton Intl. Airport (ATW) to Los Angeles - Ontario Intl. Airport (ONT)?
To find the cheapest airline that'll fly you from ATW to ONT, use Expedia's filter tool. Tailor your search based on what's important to you, such as preferred carriers and cabin 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 Appleton Intl. Airport (ATW) to Los Angeles - Ontario Intl. Airport (ONT)?
There aren't any daily nonstop flights departing from Appleton Intl. Airport (ATW) to Los Angeles - Ontario Intl. Airport (ONT). But you can opt for flights with layovers. Filter your search results on Expedia to include one or more stops, and you'll be on your way before you know it.
What day of the week has the most flights from ATW to ONT?
Generally you'll have the most choice when it comes to flights on a Friday. Tuesdays are often the quietest.* However, this can change depending on the time of year, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Appleton Intl. Airport (ATW) to Los Angeles - Ontario Intl. Airport (ONT)?
To reach Los Angeles - Ontario Intl. Airport (ONT) without delays, select a flight that leaves Appleton Intl. Airport (ATW) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**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 Appleton Intl. Airport (ATW) to Los Angeles - Ontario Intl. Airport (ONT) last-minute?
Last-minute fares from ATW to ONT are generally more expensive. To lock in the lowest rates, start looking for flights early. That said, if you can play around with your travel dates, it's possible to land a cheap fare right before your journey.
Is it cheaper to book an ATW to ONT flight and hotel package?
Opting for an ATW to ONT flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels all in one place. Pick from our wide range of hotels and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Appleton Intl. Airport (ATW) to Los Angeles - Ontario Intl. Airport (ONT)?
It's generally possible to reschedule or cancel your ATW to ONT flight. However, if it's been more than 24 hours since booking, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are possible and if any costs are involved. You'll also find further details on our Customer Service portal.

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*Available to One Key members.