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Cheap flights from St. Louis to Spokane from $155

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Spokane departing on 5/31. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from St. Louis to Spokane

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
8:16 pm - 10:21 am
STL
-
GEG
16h 05m
1 stop
Frontier Logo
11:06 am - 9:48 am
GEG
-
STL
20h 42m
1 stop
$239Frontier
Wed, Apr 8 - Sun, Apr 12
Multiple Airlines Logo
4:46 pm - 11:11 pm
STL
-
GEG
8h 25m
1 stop
Multiple Airlines Logo
11:44 am - 7:21 pm
GEG
-
STL
5h 37m
1 stop
$304Multiple Airlines
Wed, Apr 29 - Sun, May 3
Delta Logo
6:45 pm - 11:34 pm
STL
-
GEG
6h 49m
1 stop
Delta Logo
5:30 am - 3:01 pm
GEG
-
STL
7h 31m
1 stop
$331Delta
Tue, Apr 14 - Sat, Apr 18
Southwest Logo
6:35 am - 10:15 am
STL
-
GEG
5h 40m
1 stop
Southwest Logo
10:45 am - 8:20 pm
GEG
-
STL
7h 35m
2 stops
$336Southwest
Wed, Apr 15 - Sat, Apr 18
Southwest Logo
2:30 pm - 11:25 pm
STL
-
GEG
10h 55m
1 stop
Southwest Logo
10:45 am - 8:20 pm
GEG
-
STL
7h 35m
2 stops
$352Southwest
Tue, Apr 14 - Sat, Apr 18
United Airlines Logo
11:15 am - 9:11 pm
STL
-
GEG
11h 56m
2 stops
United Airlines Logo
7:00 am - 8:54 pm
GEG
-
STL
11h 54m
2 stops
$357United Airlines
Tue, Apr 14 - Sat, Apr 18
Southwest Logo
5:15 pm - 10:20 pm
STL
-
GEG
7h 05m
1 stop
Southwest Logo
11:05 am - 8:20 pm
GEG
-
STL
7h 15m
1 stop
$367Southwest
Fri, May 1 - Sat, May 16
Southwest Logo
6:45 pm - 10:20 pm
STL
-
GEG
5h 35m
1 stop
Southwest Logo
10:45 am - 8:25 pm
GEG
-
STL
7h 40m
2 stops
$372Southwest
Fri, May 1 - Sat, May 16
Southwest Logo
3:50 pm - 12:30 am
STL
-
GEG
10h 40m
2 stops
Southwest Logo
10:45 am - 8:25 pm
GEG
-
STL
7h 40m
2 stops
$377Southwest
Fri, May 1 - Sat, May 16
Multiple Airlines Logo
5:21 pm - 9:01 am
STL
-
GEG
17h 40m
2 stops
Multiple Airlines Logo
11:44 am - 7:21 pm
GEG
-
STL
5h 37m
1 stop
$380Multiple Airlines
Wed, Apr 29 - Sun, May 3

Frontier flights from St. Louis to Spokane

Our best Frontier deals on St. Louis to Spokane flight tickets
Frontier
Apr 8
STL8:16 pmLambert-St Louis
16h 05m
1 stop
GEG10:21 amSpokane
Apr 12
GEG11:06 amSpokane
20h 42m
1 stop
STL9:48 amLambert-St Louis
$239
Frontier
Apr 8
STL8:16 pmLambert-St Louis
16h 05m
1 stop
GEG10:21 amSpokane
Apr 12
GEG11:06 amSpokane
20h 42m
1 stop
STL9:48 amLambert-St Louis
$384
Frontier
Apr 8
STL8:16 pmLambert-St Louis
16h 05m
1 stop
GEG10:21 amSpokane
Apr 12
GEG11:06 amSpokane
34h 19m
2 stops
STL11:25 pmLambert-St Louis
$441

Delta flights from St. Louis to Spokane

Our best Delta deals on St. Louis to Spokane flight tickets
Delta
Apr 14
STL6:45 pmLambert-St Louis
6h 49m
1 stop
GEG11:34 pmSpokane
Apr 18
GEG5:30 amSpokane
7h 31m
1 stop
STL3:01 pmLambert-St Louis
$331
Delta
Apr 29
STL1:46 pmLambert-St Louis
12h 34m
2 stops
GEG12:20 amSpokane
May 3
GEG1:07 pmSpokane
9h 18m
2 stops
STL12:25 amLambert-St Louis
$401
Delta
Apr 9
STL7:15 amLambert-St Louis
7h 30m
1 stop
GEG12:45 pmSpokane
Apr 13
GEG10:40 pmSpokane
7h 50m
1 stop
STL8:30 amLambert-St Louis
$425

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Spokane 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 March 19, 2026.
Use the filters below to find and compare flights from St. Louis to Spokane that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisSpokane

STL - GEG

STLGEG

Lambert-St Louis

Wed 4/8

8:16 pm-10:21 am

1 stop16h 05m

Spokane

Sun 4/12

11:06 am-9:48 am

1 stop20h 42m

$239

St. LouisSpokane

STL - GEG

STLGEG

Lambert-St Louis

Wed 4/29

4:46 pm-11:11 pm

1 stop8h 25m

Spokane

Sun 5/3

11:44 am-7:21 pm

1 stop5h 37m

$304

St. LouisSpokane

STL - GEG

STLGEG

Lambert-St Louis

Tue 4/14

6:45 pm-11:34 pm

1 stop6h 49m

Spokane

Sat 4/18

5:30 am-3:01 pm

1 stop7h 31m

$331
Quickest round-trip

St. LouisSpokane

STL - GEG

STLGEG

Lambert-St Louis

Wed 4/15

6:35 am-10:15 am

1 stop5h 40m

Spokane

Sat 4/18

10:45 am-8:20 pm

2 stops7h 35m

$336

St. LouisSpokane

STL - GEG

STLGEG

Lambert-St Louis

Tue 4/14

2:30 pm-11:25 pm

1 stop10h 55m

Spokane

Sat 4/18

10:45 am-8:20 pm

2 stops7h 35m

$352

St. LouisSpokane

STL - GEG

STLGEG

Lambert-St Louis

Tue 4/14

11:15 am-9:11 pm

2 stops11h 56m

Spokane

Sat 4/18

7:00 am-8:54 pm

2 stops11h 54m

$357

St. LouisSpokane

STL - GEG

STLGEG

Lambert-St Louis

Fri 5/1

5:15 pm-10:20 pm

1 stop7h 05m

Spokane

Sat 5/16

11:05 am-8:20 pm

1 stop7h 15m

$367

St. LouisSpokane

STL - GEG

STLGEG

Lambert-St Louis

Fri 5/1

6:45 pm-10:20 pm

1 stop5h 35m

Spokane

Sat 5/16

10:45 am-8:25 pm

2 stops7h 40m

$372

St. LouisSpokane

STL - GEG

STLGEG

Lambert-St Louis

Fri 5/1

3:50 pm-12:30 am

2 stops10h 40m

Spokane

Sat 5/16

10:45 am-8:25 pm

2 stops7h 40m

$377

St. LouisSpokane

STL - GEG

STLGEG

Lambert-St Louis

Wed 4/29

5:21 pm-9:01 am

2 stops17h 40m

Spokane

Sun 5/3

11:44 am-7:21 pm

1 stop5h 37m

$380

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Spokane from

How to get the cheapest flight ticket from St. Louis to Spokane

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 is the cheapest month to fly to Spokane?

The month of January is, on average, the cheapest month to fly to Spokane from St. Louis, with most prices found around $309. If you’re not able to fly to Spokane in January, then October is your next best option. Flight prices from St. Louis to Spokane during October average around $352.

How far in advance should I book a flight to Spokane?

You are more likely to see cheaper flights to Spokane from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Spokane for around $436 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Spokane from St. Louis for as low as $316 on momondo.

How have St. Louis to Spokane flight prices changed over time?

When to book flights from St. Louis to Spokane

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

Cheap St. Louis to Spokane (STL to GEG) flight deals and tips

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

Fastest flight time

5h 59m

Direct flights

None
The fastest flight from St. Louis to Spokane takes 5h 59m
There are no direct flights from St. Louis to Spokane. There are no popular flight routes from St. Louis to Spokane.
Search flight deals

  • How far is Lambert-St Louis to Spokane by plane?

    Lambert-St Louis and Spokane are 1496.7 mi apart from one another. In terms of flight time, this usually takes a little over 5h 59m.

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Spokane Airport?

    Prices for flights from Lambert-St Louis Airport to Spokane Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to Spokane Airport?

  • How old do you have to be to fly from Lambert-St Louis Airport to Spokane Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Spokane Airport.

  • What documentation or ID do you need to fly to Spokane Airport?

    The necessary travel and health documents for your Spokane Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from St. Louis to Spokane?

Best airlines flying from St. Louis to Spokane

Compare and see reviews for airlines that fly from St. Louis to Spokane with momondo
Airline
Rating
Free Cancellation
Price
Alaska AirlinesPriceFrom $151Free CancellationRating
7.9
12,072 reviews
Search Alaska Airlines flights
DeltaPriceFrom $153Free CancellationRating
7.9
8,293 reviews
Search Delta flights
American AirlinesPriceFrom $278Free CancellationRating
7.1
11,473 reviews
Search American Airlines flights
SouthwestPriceFrom $298Free CancellationRating
8.0
4,319 reviews
Search Southwest flights
United AirlinesPriceFrom $348Free CancellationRating
7.4
9,439 reviews
Search United Airlines flights

Traveling to a place near Spokane?

Book flights to Spokane if you plan to visit one of these locations
Coeur d'Alene
Sandpoint
Spokane Valley
Post Falls
Bonners Ferry
Airway Heights
Kellogg
Ritzville

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from St. Louis to Spokane for you.

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

Yes. momondo enables you to select and highlight flights to Spokane from St. Louis with this policy.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Spokane from St. Louis.

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

If you are not ready to book a flight from St. Louis to Spokane now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Spokane and let you know when they change.

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