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Cheap flights from St. Louis to Lewiston from $570

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Lewiston departing on 9/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from St. Louis to Lewiston

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
3:52 pm - 11:08 pmSTL  Lambert-St Louis-LWS Lewiston Nez Perce Rgnl
9h 16m2 stops Minneapolis St Paul Seattle/Tacoma Intl
Delta Logo
12:14 pm - 11:16 pmLWS  Lewiston Nez Perce Rgnl-STL Lambert-St Louis
9h 02m2 stops Salt Lake City Minneapolis St Paul
$570Delta
Fri, Sep 11 - Tue, Sep 15
Delta Logo
2:32 pm - 10:59 pmSTL  Lambert-St Louis-LWS Lewiston Nez Perce Rgnl
10h 27m2 stops Salt Lake City Seattle/Tacoma Intl
Delta Logo
12:14 pm - 9:31 pmLWS  Lewiston Nez Perce Rgnl-STL Lambert-St Louis
7h 17m1 stop Salt Lake City
$824Delta
Fri, Sep 4 - Fri, Sep 11
Delta Logo
2:32 pm - 10:59 pmSTL  Lambert-St Louis-LWS Lewiston Nez Perce Rgnl
10h 27m2 stops Salt Lake City Seattle/Tacoma Intl
Delta Logo
9:16 am - 9:31 pmLWS  Lewiston Nez Perce Rgnl-STL Lambert-St Louis
10h 15m2 stops Seattle/Tacoma Intl Salt Lake City
$829Delta
Fri, Sep 4 - Fri, Sep 11
Delta Logo
8:00 am - 11:43 amSTL  Lambert-St Louis-LWS Lewiston Nez Perce Rgnl
5h 43m1 stop Salt Lake City
Delta Logo
12:14 pm - 9:31 pmLWS  Lewiston Nez Perce Rgnl-STL Lambert-St Louis
7h 17m1 stop Salt Lake City
$842Delta
Thu, Sep 3 - Tue, Sep 8
Delta Logo
8:00 am - 11:43 amSTL  Lambert-St Louis-LWS Lewiston Nez Perce Rgnl
5h 43m1 stop Salt Lake City
Delta Logo
12:14 pm - 11:16 pmLWS  Lewiston Nez Perce Rgnl-STL Lambert-St Louis
9h 02m2 stops Salt Lake City Minneapolis St Paul
$848Delta
Thu, Sep 3 - Tue, Sep 8
Delta Logo
2:32 pm - 10:59 pmSTL  Lambert-St Louis-LWS Lewiston Nez Perce Rgnl
10h 27m2 stops Salt Lake City Seattle/Tacoma Intl
Delta Logo
12:14 pm - 11:42 pmLWS  Lewiston Nez Perce Rgnl-STL Lambert-St Louis
9h 28m2 stops Salt Lake City Atlanta Hartsfield-Jackson
$973Delta
Thu, Sep 3 - Tue, Sep 8
Delta Logo
2:32 pm - 10:59 pmSTL  Lambert-St Louis-LWS Lewiston Nez Perce Rgnl
10h 27m2 stops Salt Lake City Seattle/Tacoma Intl
Delta Logo
9:16 am - 11:16 pmLWS  Lewiston Nez Perce Rgnl-STL Lambert-St Louis
12h 00m2 stops Seattle/Tacoma Intl Minneapolis St Paul
$1,419Delta
Mon, Sep 7 - Mon, Sep 14
Delta Logo
8:00 am - 11:43 amSTL  Lambert-St Louis-LWS Lewiston Nez Perce Rgnl
5h 43m1 stop Salt Lake City
Delta Logo
12:14 pm - 9:31 pmLWS  Lewiston Nez Perce Rgnl-STL Lambert-St Louis
7h 17m1 stop Salt Lake City
$1,659Delta
Fri, Sep 4 - Fri, Sep 11
Delta Logo
8:00 am - 11:34 amSTL  Lambert-St Louis-LWS Lewiston Nez Perce Rgnl
5h 34m1 stop Salt Lake City
Delta Logo
12:14 pm - 11:42 pmLWS  Lewiston Nez Perce Rgnl-STL Lambert-St Louis
9h 28m2 stops Salt Lake City Atlanta Hartsfield-Jackson
$1,725Delta
Fri, Sep 11 - Tue, Sep 15
Delta Logo
8:00 am - 11:43 amSTL  Lambert-St Louis-LWS Lewiston Nez Perce Rgnl
5h 43m1 stop Salt Lake City
Delta Logo
9:16 am - 11:16 pmLWS  Lewiston Nez Perce Rgnl-STL Lambert-St Louis
12h 00m2 stops Seattle/Tacoma Intl Minneapolis St Paul
$1,825Delta
Mon, Sep 7 - Mon, Sep 14

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Delta flights from St. Louis to Lewiston, Idaho

Our best Delta deals on St. Louis to Lewiston, Idaho flight tickets
Delta
Sep 11
STL3:52 pmLambert-St Louis
9h 16m
2 stops
LWS11:08 pmLewiston Nez Perce Rgnl
Sep 15
LWS12:14 pmLewiston Nez Perce Rgnl
9h 02m
2 stops
STL11:16 pmLambert-St Louis
$570
Delta
Sep 4
STL2:32 pmLambert-St Louis
10h 27m
2 stops
LWS10:59 pmLewiston Nez Perce Rgnl
Sep 11
LWS12:14 pmLewiston Nez Perce Rgnl
7h 17m
1 stop
STL9:31 pmLambert-St Louis
$824
Delta
Sep 4
STL2:32 pmLambert-St Louis
10h 27m
2 stops
LWS10:59 pmLewiston Nez Perce Rgnl
Sep 11
LWS9:16 amLewiston Nez Perce Rgnl
10h 15m
2 stops
STL9:31 pmLambert-St Louis
$829

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Lewiston, Idaho 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, momondo users made 832,500 searches. Data last updated August 10, 2026.
Use the filters below to find and compare flights from St. Louis to Lewiston, Idaho that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisLewiston

STL Lambert-St Louis - LWS Lewiston Nez Perce Rgnl

STLLWS

Lambert-St Louis

Fri 9/11

3:52 pm-11:08 pm

2 stops9h 16m

Lewiston Nez Perce Rgnl

Tue 9/15

12:14 pm-11:16 pm

2 stops9h 02m

$570

St. LouisLewiston

STL Lambert-St Louis - LWS Lewiston Nez Perce Rgnl

STLLWS

Lambert-St Louis

Fri 9/4

2:32 pm-10:59 pm

2 stops10h 27m

Lewiston Nez Perce Rgnl

Fri 9/11

12:14 pm-9:31 pm

1 stop7h 17m

$824

St. LouisLewiston

STL Lambert-St Louis - LWS Lewiston Nez Perce Rgnl

STLLWS

Lambert-St Louis

Fri 9/4

2:32 pm-10:59 pm

2 stops10h 27m

Lewiston Nez Perce Rgnl

Fri 9/11

9:16 am-9:31 pm

2 stops10h 15m

$829
Quickest round-trip

St. LouisLewiston

STL Lambert-St Louis - LWS Lewiston Nez Perce Rgnl

STLLWS

Lambert-St Louis

Thu 9/3

8:00 am-11:43 am

1 stop5h 43m

Lewiston Nez Perce Rgnl

Tue 9/8

12:14 pm-9:31 pm

1 stop7h 17m

$842

St. LouisLewiston

STL Lambert-St Louis - LWS Lewiston Nez Perce Rgnl

STLLWS

Lambert-St Louis

Thu 9/3

8:00 am-11:43 am

1 stop5h 43m

Lewiston Nez Perce Rgnl

Tue 9/8

12:14 pm-11:16 pm

2 stops9h 02m

$848

St. LouisLewiston

STL Lambert-St Louis - LWS Lewiston Nez Perce Rgnl

STLLWS

Lambert-St Louis

Thu 9/3

2:32 pm-10:59 pm

2 stops10h 27m

Lewiston Nez Perce Rgnl

Tue 9/8

12:14 pm-11:42 pm

2 stops9h 28m

$973

St. LouisLewiston

STL Lambert-St Louis - LWS Lewiston Nez Perce Rgnl

STLLWS

Lambert-St Louis

Mon 9/7

2:32 pm-10:59 pm

2 stops10h 27m

Lewiston Nez Perce Rgnl

Mon 9/14

9:16 am-11:16 pm

2 stops12h 00m

$1,419

St. LouisLewiston

STL Lambert-St Louis - LWS Lewiston Nez Perce Rgnl

STLLWS

Lambert-St Louis

Fri 9/4

8:00 am-11:43 am

1 stop5h 43m

Lewiston Nez Perce Rgnl

Fri 9/11

12:14 pm-9:31 pm

1 stop7h 17m

$1,659

St. LouisLewiston

STL Lambert-St Louis - LWS Lewiston Nez Perce Rgnl

STLLWS

Lambert-St Louis

Fri 9/11

8:00 am-11:34 am

1 stop5h 34m

Lewiston Nez Perce Rgnl

Tue 9/15

12:14 pm-11:42 pm

2 stops9h 28m

$1,725

St. LouisLewiston

STL Lambert-St Louis - LWS Lewiston Nez Perce Rgnl

STLLWS

Lambert-St Louis

Mon 9/7

8:00 am-11:43 am

1 stop5h 43m

Lewiston Nez Perce Rgnl

Mon 9/14

9:16 am-11:16 pm

2 stops12h 00m

$1,825

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Lewiston from

How to get the cheapest flight ticket from St. Louis to Lewiston, Idaho

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What airlines fly to Lewiston, Idaho?

Delta, United Airlines and Southwest are the top three most popular airlines that fly to Lewiston, Idaho from St. Louis according to our data. Delta is the first choice among our users, with 44% of people opting to fly with this airline when traveling to Lewiston, Idaho. Keep in mind that there are 4 different airlines that fly to Lewiston, Idaho on a routine basis, so you have a few additional options to choose from.

When to book flights from St. Louis to Lewiston, Idaho

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Lewiston, Idaho according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap St. Louis to Lewiston, Idaho (STL to LWS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Lewiston, Idaho

Fastest flight time

5h 43m

Direct flights

None
The fastest flight from St. Louis to Lewiston, Idaho takes 5h 43m
There are no direct flights from St. Louis to Lewiston, Idaho. There are no popular flight routes from St. Louis to Lewiston, Idaho.
Search flight deals

Frequently asked questions about flying from St. Louis to Lewiston, Idaho

  • How far is Lambert-St Louis to Lewiston Nez Perce Rgnl by plane?

    The distance between Lambert-St Louis and Lewiston Nez Perce Rgnl is about 1457.1 mi. By plane, this route typically takes 5h 43m.

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Lewiston Nez Perce Rgnl Airport?

    Prices for flights from Lambert-St Louis Airport to Lewiston Nez Perce Rgnl Airport are updated daily.

  • How old do you have to be to fly from Lambert-St Louis Airport to Lewiston Nez Perce Rgnl Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Lewiston Nez Perce Rgnl Airport.

  • What documentation or ID do you need to fly to Lewiston Nez Perce Rgnl Airport?

    The travel and health documents you'll need for your trip to Lewiston Nez Perce Rgnl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Lewiston Nez Perce Rgnl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Lewiston?

Finding the right flight to Lewiston from St. Louis is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Lewiston quick and easy, saving you time and money.

Can I find flights from St. Louis to Lewiston with flexible booking policies on momondo?

Flights from St. Louis to Lewiston with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from St. Louis to Lewiston?

Once all potential St. Louis to Lewiston flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from St. Louis to Lewiston right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Lewiston, momondo offers a useful price alert feature which will track prices for flights to Lewiston from St. Louis and alert you when they change.

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