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Lewiston

$679+ Cheap flights from St. Louis to Lewiston, ID (STL - LWS)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/30. Fares are subject to change and may not be available on all flights or dates of travel.
STL — LWS
Feb 25 — Mar 41
Wed 2/25
Wed 3/4
1 adult, Economy
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Cheap flight deals from St. Louis to Lewiston

Cheapest flights from St. Louis to Lewiston
Explore the most affordable flight options available from St. Louis to Lewiston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 26, 2026.

This Delta deal was found by Cheapflights users on 1/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/307:30 am
STL
-
LWS
1 stop6h 12m
Delta
Mon 7/612:30 pm
LWS
-
STL
2 stops8h 31m
Delta
Deal found 1/25$679

Find flight deals from St. Louis to Lewiston

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Lewiston (LWS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$679
(Delta)
Provider with most accurate pricing for Lambert-St Louis-Lewiston Nez Perce Rgnl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-Lewiston Nez Perce Rgnl flights.
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From Lambert-St Louis to Lewiston Nez Perce Rgnl
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Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Lewiston that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 26, 2026.
Use the filters below to find and compare flights from St. Louis to Lewiston that are best for you.

Fly from

St. Louis

Fly to

Lewiston

Route

Depart

Return

Price

St. LouisLewiston

STL - LWS

STLLWS

Lambert-St Louis

Tue 6/30

7:30 am-11:42 am

1 stop6h 12m

Lewiston Nez Perce Rgnl

Mon 7/6

12:30 pm-11:01 pm

2 stops8h 31m

$679

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/25

Compare providers for flights from St. Louis to Lewiston

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Lewiston in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on St. Louis-Lewiston, Idaho flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Lewiston, Idaho flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Lewiston, Idaho flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on St. Louis-Lewiston, Idaho flights, Cheapflights users trust Expedia the most. Expedia has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Lewiston, Idaho flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from St. Louis to Lewiston

Have a flexible travel schedule? Discover the best time to fly to Lewiston from St. Louis with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from St. Louis to Lewiston

What is the cheapest month to book a flight from St. Louis to Lewiston, Idaho?

Currently, September is the cheapest month in which you can book a flight from St. Louis to Lewiston, Idaho (average of $122). Flying from St. Louis to Lewiston, Idaho in May is currently the most expensive (average of $341). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Lewiston. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from St. Louis to Lewiston, Idaho?

    For as low as $679, Delta can have you in Lewiston, Idaho from St. Louis in 6h 12m. St. Louis and Lewiston, Idaho are separated by a distance of 1445 mi.

  • Can I find deals for flights from St. Louis to Lewiston that include hotel bookings?

    Yes. In addition to deals on St. Louis to Lewiston flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to Lewiston?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Lewiston.

  • Can I find deals for business class flights from St. Louis to Lewiston?

    Yes. Cheapflights offers flight deals from St. Louis to Lewiston by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from St. Louis to Lewiston, Idaho?

    Currently, September is the cheapest month in which you can book a flight from St. Louis to Lewiston, Idaho (average of $122). Flying from St. Louis to Lewiston, Idaho in May is currently the most expensive (average of $341). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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