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Cheap flights from St. Louis to Idaho from $73

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 Idaho departing on 6/3. 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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Sun 5/26

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Easily compare round-trip flights from St. Louis to Idaho

Below you can see the best fares for your round-trip flight route over the next six months. All fares were found on momondo this week. Browse the quickest and cheapest flights from St. Louis to Idaho by changing tabs
Spirit Airlines
May 29
STL11:36 amLambert-St Louis
9h 20m
1 stop
BOI7:56 pmBoise Air Term. Gowen Fld
Jun 6
BOI9:13 pmBoise Air Term. Gowen Fld
16h 03m
1 stop
STL2:16 pmLambert-St Louis
Multiple Airlines
May 29
STL11:36 amLambert-St Louis
9h 20m
1 stop
BOI7:56 pmBoise Air Term. Gowen Fld
Jun 6
BOI9:13 pmBoise Air Term. Gowen Fld
18h 58m
2 stops
STL5:11 pmLambert-St Louis
Delta
Aug 23
STL7:30 amLambert-St Louis
6h 15m
1 stop
LWS11:45 amLewiston Nez Perce Rgnl
Aug 27
LWS12:30 pmLewiston Nez Perce Rgnl
7h 06m
1 stop
STL9:36 pmLambert-St Louis
American Airlines
Jul 1
STL5:27 amLambert-St Louis
6h 33m
1 stop
BOI11:00 amBoise Air Term. Gowen Fld
Jul 9
BOI12:51 amBoise Air Term. Gowen Fld
7h 38m
1 stop
STL9:29 amLambert-St Louis
Alaska Airlines
May 30
STL7:00 amLambert-St Louis
8h 07m
1 stop
BOI2:07 pmBoise Air Term. Gowen Fld
Jun 3
BOI6:45 pmBoise Air Term. Gowen Fld
17h 51m
1 stop
STL1:36 pmLambert-St Louis
United Airlines
Aug 12
STL1:45 pmLambert-St Louis
4h 59m
1 stop
JAC5:44 pmJackson Hole
Aug 15
JAC2:50 pmJackson Hole
6h 21m
1 stop
STL10:11 pmLambert-St Louis

Find the cheapest one-way flights from St. Louis to Idaho

If you're looking for one-way flights from St. Louis to Idaho, view some of our deals below provided by Delta, Spirit Airlines and Sun Country Air
Spirit Airlines
Jun 3
STL4:05 pmLambert-St Louis
29h 20m
1 stop
BOI8:25 pmBoise Air Term. Gowen Fld
Sun Country Air
Jun 21
STL7:30 pmLambert-St Louis
21h 53m
1 stop
BOI4:23 pmBoise Air Term. Gowen Fld
Delta
Jul 13
STL6:06 amLambert-St Louis
7h 00m
1 stop
GEG11:06 amSpokane

Search last-minute flights to Idaho from St. Louis

Find and compare round-trip flight prices for your last-minute flight from St. Louis to Idaho
Spirit Airlines
May 20
STL4:05 pmLambert-St Louis
25h 25m
1 stop
BOI4:30 pmBoise Air Term. Gowen Fld
May 21
BOI9:15 pmBoise Air Term. Gowen Fld
12h 31m
1 stop
STL10:46 amLambert-St Louis
Multiple Airlines
May 20
STL8:35 pmLambert-St Louis
20h 55m
3 stops
BOI4:30 pmBoise Air Term. Gowen Fld
May 21
BOI9:15 pmBoise Air Term. Gowen Fld
12h 31m
1 stop
STL10:46 amLambert-St Louis
Delta
May 22
STL5:30 pmLambert-St Louis
4h 45m
1 stop
JAC9:15 pmJackson Hole
May 28
JAC5:25 pmJackson Hole
6h 21m
1 stop
STL12:46 amLambert-St Louis
Alaska Airlines
May 22
STL7:00 amLambert-St Louis
17h 59m
2 stops
GEG10:59 pmSpokane
May 28
GEG2:54 pmSpokane
7h 05m
1 stop
STL11:59 pmLambert-St Louis
United Airlines
May 21
STL5:25 pmLambert-St Louis
6h 20m
1 stop
BOI10:45 pmBoise Air Term. Gowen Fld
May 22
BOI6:35 amBoise Air Term. Gowen Fld
9h 39m
2 stops
STL5:14 pmLambert-St Louis
American Airlines
May 23
STL5:21 amLambert-St Louis
8h 24m
1 stop
BOI12:45 pmBoise Air Term. Gowen Fld
May 23
BOI12:59 amBoise Air Term. Gowen Fld
9h 11m
2 stops
STL11:10 amLambert-St Louis

Best airlines flying from St. Louis to Idaho

Compare and see reviews for airlines that fly from St. Louis to Idaho with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $197Free CancellationRating
6.4
8,675 reviews
Search Spirit Airlines flights
DeltaPriceFrom $296Free CancellationRating
8.0
10,706 reviews
Search Delta flights
Alaska AirlinesPriceFrom $304Free CancellationRating
8.0
9,152 reviews
Search Alaska Airlines flights
American AirlinesPriceFrom $307Free CancellationRating
7.3
14,561 reviews
Search American Airlines flights
United AirlinesPriceFrom $316Free CancellationRating
7.4
10,959 reviews
Search United Airlines flights

Spirit Airlines flights from St. Louis to Idaho

Our best Spirit Airlines deals on St. Louis to Idaho flight tickets
Spirit Airlines
May 20
STL4:05 pmLambert-St Louis
25h 25m
1 stop
BOI4:30 pmBoise Air Term. Gowen Fld
May 21
BOI9:15 pmBoise Air Term. Gowen Fld
12h 31m
1 stop
STL10:46 amLambert-St Louis
Spirit Airlines
May 29
STL11:36 amLambert-St Louis
9h 20m
1 stop
BOI7:56 pmBoise Air Term. Gowen Fld
Jun 6
BOI9:13 pmBoise Air Term. Gowen Fld
16h 03m
1 stop
STL2:16 pmLambert-St Louis
Spirit Airlines
Jun 12
STL1:55 pmLambert-St Louis
7h 15m
1 stop
BOI8:10 pmBoise Air Term. Gowen Fld
Jun 19
BOI4:03 pmBoise Air Term. Gowen Fld
24h 25m
3 stops
STL5:28 pmLambert-St Louis

American Airlines flights from St. Louis to Idaho

Our best American Airlines deals on St. Louis to Idaho flight tickets
American Airlines
Jul 1
STL5:27 amLambert-St Louis
6h 33m
1 stop
BOI11:00 amBoise Air Term. Gowen Fld
Jul 9
BOI12:51 amBoise Air Term. Gowen Fld
7h 38m
1 stop
STL9:29 amLambert-St Louis
American Airlines
Aug 16
STL4:18 pmLambert-St Louis
6h 13m
1 stop
BOI9:31 pmBoise Air Term. Gowen Fld
Aug 17
BOI7:10 amBoise Air Term. Gowen Fld
7h 17m
1 stop
STL3:27 pmLambert-St Louis
American Airlines
Jul 23
STL3:18 pmLambert-St Louis
8h 02m
1 stop
GEG9:20 pmSpokane
Aug 5
GEG10:33 pmSpokane
7h 46m
1 stop
STL8:19 amLambert-St Louis

How to get the cheapest flight ticket from St. Louis to 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 is the cheapest airline that flies to Idaho from St. Louis?

Spirit Airlines. Alaska Airlines, American Airlines, and Delta are the most popular carriers operating from St. Louis to Idaho

What is the cheapest St. Louis to Idaho flight route?

Lambert-St Louis - Boise Air Term. Gowen Fld. Fly from Lambert-St Louis to Boise Air Term. Gowen Fld for the best St. Louis - Idaho flight prices

Cheap St. Louis to Idaho flight deals and tips

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

Best Price Found

$73

Fastest flight time

4h 45m

Direct flights

None

Airports in Idaho

6 airports
The best one-way flight to Idaho from St. Louis in the past 72 hours is $73. The best round-trip flight deal from St. Louis to Idaho found on momondo in the last 72 hours is $168.
The fastest flight from St. Louis to Idaho takes 4h 45m
There are no direct flights from St. Louis to Idaho. Popular non-direct routes for this connection are Lambert-St Louis Airport - Boise Air Term. Gowen Fld Airport, Lambert-St Louis Airport - West Yellowstone Airport and Lambert-St Louis Airport - Spokane Airport.
There are 6 airports near Idaho: West Yellowstone (WYS), Idaho Falls Fanning Field (IDA), Spokane (GEG), Lewiston Nez Perce Rgnl (LWS), Boise Air Term. Gowen Fld (BOI), Jackson Hole (JAC)

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

    Prices for flights from Lambert-St Louis Airport to Idaho refresh daily.

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

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

    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 Idaho.

  • What documentation or ID do you need to fly to Idaho?

    The travel and health documents you'll need for your trip to Idaho 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 Idaho. 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 Idaho?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Idaho from St. Louis.

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

momondo does allow users to show only those flights to Idaho from St. Louis which offer a flexible booking policy as well as other useful filters and features.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from St. Louis to Idaho.

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

Yes momondo offers price alerts on flights to Idaho from St. Louis. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.


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Popular flights according to clicks in the last 7 days on momondo