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Lewiston

$773+ 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 8/5. Fares are subject to change and may not be available on all flights or dates of travel.
STL — LWS
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheap 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 June 12, 2025.

Round-trip from

$773
(Delta)
From Lambert-St Louis to Lewiston Nez Perce Rgnl
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Find 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 June 12, 2025.

This Delta deal was found by Cheapflights users on 6/9. 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 8/56:40 amSTL - LWS
2 stops11h 54mDelta
Wed 8/132:00 pmLWS - STL
2 stops7h 22mDelta
Deal found 6/9$773

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 June 12, 2025.
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 8/5

6:40 am-4:34 pm

2 stops11h 54m

Lewiston Nez Perce Rgnl

Wed 8/13

2:00 pm-11:22 pm

2 stops7h 22m

$773

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/9

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, February is the cheapest month in which you can book a flight from St. Louis to Lewiston, Idaho (average of $278). Flying from St. Louis to Lewiston, Idaho in July is currently the most expensive (average of $535). 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.

Rainfall in Lewiston by month

Plan your trip to Lewiston by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Lewiston, Idaho ranges from 0.3 - 1.7 inches per month. June is typically the wettest month, when rainfall can reach 1.7 in. August is typically the driest time to visit Lewiston, Idaho when rainfall is around 0.3 in.

Temperature in Lewiston by month

Plan your trip to Lewiston by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Lewiston, Idaho, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 75.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 33.8 F).

Reviews of airlines servicing Lewiston

Get insights into the airlines that provide service to Lewiston. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Lewiston. Reviews last updated June 12, 2025.
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,950 reviews
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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.

  • What is the cheapest airline to fly from St. Louis to Lewiston, Idaho round-trip?

    Delta, at $773, was found to be the cheapest airline from St. Louis to Lewiston, Idaho..

  • 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, February is the cheapest month in which you can book a flight from St. Louis to Lewiston, Idaho (average of $278). Flying from St. Louis to Lewiston, Idaho in July is currently the most expensive (average of $535). 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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Top airline flying from St. Louis to Lewiston

Discover the top airline that operate flights from St. Louis to Lewiston. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$258Average$497FlexibilityNo cancel feeOn-time69%

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