$412 Cheap Flights from St. Louis (STL) to Lewiston (LWS)

View $412 flight on Wed, Oct 15, 2025Opens in a new window

Popular airlines from St. Louis Lambert Intl. Airport (STL) to Lewiston, ID (LWS-Nez Perce County Regional)

Cheap Flights from St. Louis to Lewiston (STL-LWS)

Prices were available within the past 7 days and start at $412 for one-way flights and $325 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, Nov 4 - Tue, Nov 11
STL
St. Louis
LWS
Lewiston
$325 Roundtrip, found 1 day ago
$325
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Nov 4 from St. Louis to Lewiston, returning Tue, Nov 11, priced at $325 found 1 day ago
Delta
Sat, Nov 15 - Sat, Dec 6
STL
St. Louis
LWS
Lewiston
$335 Roundtrip, found 4 days ago
$335
Roundtrip
found 4 days ago
Select Delta flight, departing Sat, Nov 15 from St. Louis to Lewiston, returning Sat, Dec 6, priced at $335 found 4 days ago
Delta
Mon, Nov 3 - Tue, Nov 18
STL
St. Louis
LWS
Lewiston
$341 Roundtrip, found 4 days ago
$341
Roundtrip
found 4 days ago
Select Delta flight, departing Mon, Nov 3 from St. Louis to Lewiston, returning Tue, Nov 18, priced at $341 found 4 days ago
Delta
Tue, Nov 4 - Thu, Nov 13
STL
St. Louis
LWS
Lewiston
$345 Roundtrip, found 1 day ago
$345
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Nov 4 from St. Louis to Lewiston, returning Thu, Nov 13, priced at $345 found 1 day ago
Delta
Tue, Nov 11 - Fri, Nov 28
STL
St. Louis
LWS
Lewiston
$351 Roundtrip, found 4 days ago
$351
Roundtrip
found 4 days ago
Select Delta flight, departing Tue, Nov 11 from St. Louis to Lewiston, returning Fri, Nov 28, priced at $351 found 4 days ago
Delta
Fri, Dec 5 - Mon, Dec 15
STL
St. Louis
LWS
Lewiston
$357 Roundtrip, found 4 days ago
$357
Roundtrip
found 4 days ago
Select Delta flight, departing Fri, Dec 5 from St. Louis to Lewiston, returning Mon, Dec 15, priced at $357 found 4 days ago
Delta
Mon, Nov 24 - Tue, Dec 9
STL
St. Louis
LWS
Lewiston
$361 Roundtrip, found 4 days ago
$361
Roundtrip
found 4 days ago
Select Delta flight, departing Mon, Nov 24 from St. Louis to Lewiston, returning Tue, Dec 9, priced at $361 found 4 days ago
Delta
Mon, Nov 3 - Mon, Nov 10
STL
St. Louis
LWS
Lewiston
$365 Roundtrip, found 1 day ago
$365
Roundtrip
found 1 day ago
Select Delta flight, departing Mon, Nov 3 from St. Louis to Lewiston, returning Mon, Nov 10, priced at $365 found 1 day ago
Delta
Tue, Nov 4 - Sun, Nov 9
STL
St. Louis
LWS
Lewiston
$366 Roundtrip, found 1 day ago
$366
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Nov 4 from St. Louis to Lewiston, returning Sun, Nov 9, priced at $366 found 1 day ago
Delta
Fri, Nov 14 - Fri, Nov 28
STL
St. Louis
LWS
Lewiston
$367 Roundtrip, found 4 days ago
$367
Roundtrip
found 4 days ago
Select Delta flight, departing Fri, Nov 14 from St. Louis to Lewiston, returning Fri, Nov 28, priced at $367 found 4 days ago
Flights from St. Louis (STL) to Lewiston (LWS)
Origin airport
Lambert-St. Louis Intl.
Destination airport
Nez Perce County Regional
Airlines serving
Delta
Roundtrip price
$325
Distance
1446 mi

St. Louis to Lewiston Flights

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

 

The best time to book a flight from St. Louis to Lewiston

Sunday is one of the best days to book for cheap flights from St. Louis 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 St. Louis 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 St. Louis to Lewiston in 2025. You can also book with separate airlines for your outbound and return journeys, from $412 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 St. Louis 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 St. Louis 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 Lambert-St. Louis Intl. Airport (STL) to Nez Perce County Regional Airport (LWS) cost?
Grab a cheap one-way flight from $412 or cheap return flight from $325 from Lambert-St. Louis Intl. Airport (STL) to Nez Perce County Regional Airport (LWS) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Lambert-St. Louis Intl. Airport (STL) to Nez Perce County Regional Airport (LWS)?
November is the least expensive month to fly from STL to LWS. Traveling during quieter months is often the key to scoring lower fares.
What is the cheapest airline that flies from Lambert-St. Louis Intl. Airport (STL) to Nez Perce County Regional Airport (LWS)?
Use the filters on Expedia to compare airlines and find the most affordable carrier that'll fly you from STL to LWS. Then, sort your results by "Price (lowest to highest)" to snag a good deal.
How many flights per day from Lambert-St. Louis Intl. Airport (STL) to Nez Perce County Regional Airport (LWS)?
You'll need to book a flight with a layover if you're traveling from Lambert-St. Louis Intl. Airport (STL) to Nez Perce County Regional Airport (LWS). There are no daily direct flights on this route. However, simply filter your search to include one or more stops to discover the best option for your trip.
What day of the week has the most flights from STL to LWS?
Friday is usually the busiest day for flights, while Tuesday tends to be the quietest.* Remember that flight schedules can change depending on various factors, including the airline and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Lambert-St. Louis Intl. Airport (STL) to Nez Perce County Regional Airport (LWS)?
Select a flight from Lambert-St. Louis Intl. Airport (STL) 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 Lambert-St. Louis Intl. Airport (STL) to Nez Perce County Regional Airport (LWS) last-minute?
Last-minute bookings from STL to LWS are generally more expensive. To lock in the lowest prices, start searching for flights early. That being said, if you can play around with your travel dates, you may land a cheap ticket right before your trip.
Is it cheaper to book a STL to LWS flight and hotel package?
Compared with arranging flights and hotels separately, booking a STL to LWS flight and hotel package with Expedia could lead to significant savings. What's more, having everything in one place will take the stress out of travel planning. Just secure your flights and select from our wide range of hotels, then customize your trip with extras like tours and car rentals.
Can I cancel or change the date of my flight from Lambert-St. Louis Intl. Airport (STL) to Nez Perce County Regional Airport (LWS)?
Typically, it's possible to cancel or reschedule your STL to LWS flight. However, if the booking was made more than 24 hours ago, additional charges may apply. Check your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find further details on our Customer Service portal.

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*Available to One Key members.