$435+ Cheap flights from Lewiston, ID to St. Louis (LWS - STL)
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 10/10. Fares are subject to change and may not be available on all flights or dates of travel.
LWS — STL
Oct 10 — Oct 171
Round-trip
1 adult, Economy
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1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Lewiston to St. Louis
Cheapest
Best
Last-minute
Cheapest flights from Lewiston to St. LouisExplore the most affordable flight options available from Lewiston to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 10, 2026.
Explore the most affordable flight options available from Lewiston to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 10, 2026.
This Delta deal was found by Cheapflights users on 9/9. 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.
Sat 10/109:15 am -
2 stops9h 54m
Wed 10/1410:35 am -
2 stops14h 31m
Deal found 9/9![Delta logo]()
$435
This Delta deal was found by Cheapflights users on 9/6. 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 11/2412:24 pm -
2 stops8h 54m
Sun 11/297:08 am -
1 stop6h 36m
Deal found 9/6![Delta logo]()
$908
This Delta deal was found by Cheapflights users on 9/6. 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.
Sun 10/49:16 am -
2 stops9h 19m
Sun 10/117:45 am -
1 stop5h 54m
Deal found 9/6![Delta logo]()
$1,111
Best flights from Lewiston to St. LouisDiscover carefully curated flight deals from Lewiston to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 10, 2026.
Discover carefully curated flight deals from Lewiston to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 10, 2026.
This Delta deal was found by Cheapflights users on 9/9. 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.
Sat 10/109:15 am -
2 stops9h 54m
Wed 10/1410:35 am -
2 stops14h 31m
Deal found 9/9![Delta logo]()
$435
This Delta deal was found by Cheapflights users on 9/6. 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 11/2412:24 pm -
2 stops8h 54m
Sun 11/293:30 pm -
2 stops9h 33m
Deal found 9/6![Delta logo]()
$993
This Delta deal was found by Cheapflights users on 9/6. 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.
Sun 10/49:16 am -
2 stops9h 19m
Sun 10/117:45 am -
1 stop5h 54m
Deal found 9/6![Delta logo]()
$1,111
Last-minute flights from Lewiston to St. LouisDiscover last-minute flight deals from Lewiston to St. Louis. Data last updated September 10, 2026 and is based on user searches.
Discover last-minute flight deals from Lewiston to St. Louis. Data last updated September 10, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 9/6. 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.
Sun 10/49:16 am -
2 stops9h 19m
Sun 10/117:45 am -
1 stop5h 54m
Deal found 9/6![Delta logo]()
$1,111
This Delta deal was found by Cheapflights users on 9/9. 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.
Sat 10/109:15 am -
2 stops9h 54m
Wed 10/1410:35 am -
2 stops14h 31m
Deal found 9/9![Delta logo]()
$435
Find flight deals from Lewiston to St. Louis
Discover tips and strategies to find the most affordable flight options for your journey from Lewiston (LWS) to St. Louis (STL). 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 September 10, 2026.
Most accurate provider | Expedia 1 star |
|---|---|
Most trusted provider | Expedia 3 stars |
Round-trip from | $435 (Delta) |
Cheapflights Fare Finder
Customize your flight search to find flights from Lewiston to St. Louis 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 7,457,451 searches. Data last updated September 10, 2026.
Use the filters below to find and compare flights from Lewiston to St. Louis that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
LewistonSt. Louis
LWS Lewiston Nez Perce Rgnl - STL Lambert-St Louis
LWSSTL
Lewiston Nez Perce Rgnl
Sat 10/10
9:15 am-9:09 pm
2 stops9h 54m
Lambert-St Louis
Wed 10/14
10:35 am-11:06 pm
2 stops14h 31m
$435
LewistonSt. Louis
LWS Lewiston Nez Perce Rgnl - STL Lambert-St Louis
LWSSTL
Lewiston Nez Perce Rgnl
Tue 11/24
12:24 pm-11:18 pm
2 stops8h 54m
Lambert-St Louis
Sun 11/29
3:30 pm-11:03 pm
2 stops9h 33m
$993
Quickest round-trip
LewistonSt. Louis
LWS Lewiston Nez Perce Rgnl - STL Lambert-St Louis
LWSSTL
Lewiston Nez Perce Rgnl
Sun 10/4
9:16 am-8:35 pm
2 stops9h 19m
Lambert-St Louis
Sun 10/11
7:45 am-11:39 am
1 stop5h 54m
$1,111
Sorted by cheapest first
- Most accurate provider: When it comes to deals on Lewiston, Idaho-St. Louis flights, users find the pricing of Expedia to be most consistent on Cheapflights vs. Expedia Users can find the same prices on Lewiston, Idaho-St. Louis flight deals on Cheapflights vs. Expedia <90% of the time. Price accuracy is based on data collected from Lewiston, Idaho-St. Louis flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Lewiston, Idaho-St. Louis 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 Lewiston, Idaho-St. Louis 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 Lewiston to St. Louis
Have a flexible travel schedule? Discover the best time to fly to St. Louis from Lewiston with our price prediction graph.
LWS-STL
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.
Related info for your journey
Find useful and relevant information for your journey from Lewiston to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near St. Louis?
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