$218 Cheap Flights from Ontario (ONT) to Lewiston (LWS)

View $218 flight on Mon, Jan 26, 2026Opens in a new window

Popular airlines from Los Angeles - Ontario Intl. Airport (ONT) to Lewiston, ID (LWS-Nez Perce County Regional)

Cheap Flights from Ontario to Lewiston (ONT-LWS)

Prices were available within the past 7 days and start at $218 for one-way flights and $277 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Wed, Dec 24 - Mon, Jan 5
ONT
Ontario
LWS
Lewiston
$277 Roundtrip, found 1 day ago
$277
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Dec 24 from Ontario to Lewiston, returning Mon, Jan 5, priced at $277 found 1 day ago
Delta
Fri, Mar 6 - Tue, Mar 17
ONT
Ontario
LWS
Lewiston
$282 Roundtrip, found 4 days ago
$282
Roundtrip
found 4 days ago
Select Delta flight, departing Fri, Mar 6 from Ontario to Lewiston, returning Tue, Mar 17, priced at $282 found 4 days ago
Delta
Mon, Mar 16 - Wed, Mar 25
ONT
Ontario
LWS
Lewiston
$287 Roundtrip, found 4 days ago
$287
Roundtrip
found 4 days ago
Select Delta flight, departing Mon, Mar 16 from Ontario to Lewiston, returning Wed, Mar 25, priced at $287 found 4 days ago
Delta
Tue, Mar 31 - Tue, Apr 14
ONT
Ontario
LWS
Lewiston
$317 Roundtrip, found 4 days ago
$317
Roundtrip
found 4 days ago
Select Delta flight, departing Tue, Mar 31 from Ontario to Lewiston, returning Tue, Apr 14, priced at $317 found 4 days ago
Delta
Mon, Mar 30 - Tue, Apr 14
ONT
Ontario
LWS
Lewiston
$322 Roundtrip, found 4 days ago
$322
Roundtrip
found 4 days ago
Select Delta flight, departing Mon, Mar 30 from Ontario to Lewiston, returning Tue, Apr 14, priced at $322 found 4 days ago
Delta
Thu, Dec 18 - Mon, Jan 5
ONT
Ontario
LWS
Lewiston
$322 Roundtrip, found 4 days ago
$322
Roundtrip
found 4 days ago
Select Delta flight, departing Thu, Dec 18 from Ontario to Lewiston, returning Mon, Jan 5, priced at $322 found 4 days ago
Delta
Tue, Mar 31 - Mon, Apr 13
ONT
Ontario
LWS
Lewiston
$327 Roundtrip, found 4 days ago
$327
Roundtrip
found 4 days ago
Select Delta flight, departing Tue, Mar 31 from Ontario to Lewiston, returning Mon, Apr 13, priced at $327 found 4 days ago
Delta
Fri, Mar 6 - Sun, Mar 15
ONT
Ontario
LWS
Lewiston
$327 Roundtrip, found 4 days ago
$327
Roundtrip
found 4 days ago
Select Delta flight, departing Fri, Mar 6 from Ontario to Lewiston, returning Sun, Mar 15, priced at $327 found 4 days ago
Delta
Mon, Mar 30 - Mon, Apr 13
ONT
Ontario
LWS
Lewiston
$332 Roundtrip, found 4 days ago
$332
Roundtrip
found 4 days ago
Select Delta flight, departing Mon, Mar 30 from Ontario to Lewiston, returning Mon, Apr 13, priced at $332 found 4 days ago
Delta
Wed, Dec 17 - Mon, Jan 5
ONT
Ontario
LWS
Lewiston
$337 Roundtrip, found 4 days ago
$337
Roundtrip
found 4 days ago
Select Delta flight, departing Wed, Dec 17 from Ontario to Lewiston, returning Mon, Jan 5, priced at $337 found 4 days ago

Alternative airports near Lewiston

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

Select flight to Pullman - Moscow Regional PUW. Average driving time to city center is 48 minutes. Flights from $511
PUW
Pullman - Moscow Regional
Average driving time to city center48 min
Flights from $511
Flights from Ontario (ONT) to Lewiston (LWS)
Origin airport
Los Angeles - Ontario Intl.
Destination airport
Nez Perce County Regional
Airlines serving
Delta
Roundtrip price
$276
Distance
851 mi

Ontario to Lewiston Flights

The cheapest times to fly from Ontario to Lewiston

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 Ontario to Lewiston are during the month of December. You can find some of the cheapest flights from Ontario to Lewiston with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Ontario to Lewiston

Sunday is one of the best days to book for cheap flights from Ontario to Lewiston: 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 Ontario to Lewiston

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 Ontario to Lewiston in 2026. You can also book with separate airlines for your outbound and return journeys, from $218 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 Ontario to Lewiston 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 Ontario to Lewiston 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 Los Angeles - Ontario Intl. Airport (ONT) to Nez Perce County Regional Airport (LWS) cost?
Snag a cheap one-way flight from $218 or cheap return flight from $277 from Los Angeles - Ontario Intl. Airport (ONT) to Nez Perce County Regional Airport (LWS) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Los Angeles - Ontario Intl. Airport (ONT) to Nez Perce County Regional Airport (LWS)?
December is the cheapest month to fly from ONT to LWS. Planning your trip for the off-season is often the key to scoring lower fares.
What is the cheapest airline that flies from Los Angeles - Ontario Intl. Airport (ONT) to Nez Perce County Regional Airport (LWS)?
Expedia's filter tool lets you easily compare airlines, flight times and baggage options all in one place. Choose your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest ONT to LWS flight.
How many flights per day from Los Angeles - Ontario Intl. Airport (ONT) to Nez Perce County Regional Airport (LWS)?
There are no daily nonstop flights departing from Los Angeles - Ontario Intl. Airport (ONT) to Nez Perce County Regional Airport (LWS). But you can opt for flights with layovers. Filter your search results on Expedia to include one or two stops, and you'll be soaring above the clouds in no time.
What day of the week has the most flights from ONT to LWS?
Usually you'll find the greatest selection of flight options on a Friday. Tuesdays tend to be the quietest.* But this can change based on the season, 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 Los Angeles - Ontario Intl. Airport (ONT) to Nez Perce County Regional Airport (LWS)?
Select a flight from Los Angeles - Ontario Intl. Airport (ONT) to Nez Perce County Regional Airport (LWS) that takes off before 3 PM to reduce the likelihood of delays. Departures after this hour are on average 22% more likely to be canceled.**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 Los Angeles - Ontario Intl. Airport (ONT) to Nez Perce County Regional Airport (LWS) last-minute?
Last-minute bookings from ONT to LWS are generally more expensive. To secure the best prices, start looking for flights as soon as possible. That being said, if you're flexible with your travel dates, it's possible to score a cheap fare right before your trip.
Is it cheaper to book an ONT to LWS flight and hotel package?
Opting for an ONT to LWS flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip in one place. Select from our extensive range of stays and then add car rentals, flights and activities to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Los Angeles - Ontario Intl. Airport (ONT) to Nez Perce County Regional Airport (LWS)?
In most cases, you can cancel or modify your ONT to LWS flight. However, there may be additional charges, especially if you booked over 24 hours ago. Check your itinerary for the airline's fees and policies on flight changes, or if you'd like more information, visit our Customer Service portal.

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*Available to One Key members.