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Cheap flights from St. Louis to Idaho from $157

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 2/1. 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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Find the cheapest flights from St. Louis to Idaho

Cheap round-trip flights

These are some of the best round-trip flight deals from St. Louis to Idaho that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from St. Louis to Idaho.

Cheap last minute flights

Planning a quick getaway from St. Louis to Idaho? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Idaho, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from St. Louis to Idaho

Find recent round-trip train or bus tickets from St. Louis to Idaho.

All round-trip flight deals to Idaho

The cheapest plane tickets to Idaho found on KAYAK recently.
6:44 am - 1:49 pmSTL-GEG
9h 05m1 stop
3:21 pm - 11:57 pmGEG-STL
6h 36m1 stop
$296American Airlines
Find Deal
Sat, Jan 18 - Sat, Jan 25
5:03 am - 12:37 pmSTL-BOI
8h 34m1 stop
2:07 pm - 11:57 pmBOI-STL
8h 50m1 stop
$300American Airlines
Find Deal
Mon, Jan 13 - Tue, Jan 21
9:44 am - 7:55 pmSTL-BOI
11h 11m2 stops
10:57 am - 6:59 pmBOI-STL
7h 02m1 stop
$305United Airlines
Find Deal
Sat, Jan 18 - Sat, Jan 25
1:45 pm - 10:15 pmSTL-BOI
9h 30m2 stops
8:25 am - 5:36 pmBOI-STL
8h 11m2 stops
$310United Airlines
Find Deal
Sat, Jan 18 - Sat, Jan 25
5:00 pm - 10:46 pmSTL-GEG
7h 46m1 stop
9:15 am - 9:33 pmGEG-STL
10h 18m2 stops
$320Delta
Find Deal
Sat, Jan 18 - Sat, Jan 25
10:22 am - 8:29 pmSTL-BOI
11h 07m2 stops
5:55 am - 1:43 pmBOI-STL
6h 48m1 stop
$327Delta
Find Deal
Mon, Jan 13 - Tue, Jan 21
9:39 am - 2:38 pmSTL-JAC
5h 59m1 stop
12:47 pm - 10:09 pmJAC-STL
8h 22m1 stop
$334American Airlines
Find Deal
Sun, Jan 5 - Wed, Jan 8
11:00 am - 9:50 pmSTL-BOI
11h 50m2 stops
5:05 am - 11:10 amBOI-STL
5h 05m1 stop
$451Southwest
Find Deal
Wed, Jan 1 - Sun, Jan 5
11:00 am - 9:50 pmSTL-BOI
11h 50m2 stops
6:30 am - 4:55 pmBOI-STL
9h 25m2 stops
$466Southwest
Find Deal
Wed, Jan 1 - Sun, Jan 5
4:26 pm - 2:50 pmSTL-BOI
23h 24m3 stops
3:45 pm - 3:21 pmBOI-STL
22h 36m3 stops
$536Spirit Airlines
Find Deal
Tue, Dec 10 - Sat, Dec 14
6:03 am - 1:03 pmSTL-JAC
8h 00m1 stop
$157American Airlines
Find Deal
Sat, Feb 1
10:22 am - 7:02 pmSTL-JAC
9h 40m2 stops
$162Delta
Find Deal
Sat, Feb 1
2:10 pm - 12:06 amSTL-GEG
11h 56m2 stops
$253Delta
Find Deal
Thu, Dec 12
7:00 am - 9:48 amSTL-JAC
27h 48m3 stops
$422United Airlines
Find Deal
Sat, Feb 1
6:35 pm - 11:48 pmSTL-GEG
7h 13m1 stop
$477Delta
Find Deal
Sun, Dec 1
7:30 pm - 12:15 amSTL-GEG
6h 45m1 stop
$508Southwest
Find Deal
Sun, Dec 1
5:10 am - 12:05 pmSTL-GEG
8h 55m2 stops
$513Southwest
Find Deal
Sun, Dec 1
1:00 pm - 10:28 amSTL-GEG
23h 28m3 stops
Sun, Dec 1
2:25 pm - 9:17 pmSTL-LWS
8h 52m2 stops
7:00 am - 5:43 pmLWS-STL
8h 43m2 stops
$648Delta
Find Deal
Tue, Nov 26 - Sat, Nov 30
7:00 pm - 10:33 pmSTL-LWS
29h 33m2 stops
5:20 am - 12:43 pmLWS-STL
5h 23m1 stop
$663United Airlines
Find Deal
Tue, Nov 26 - Sat, Nov 30
10:21 am - 9:17 pmSTL-LWS
12h 56m2 stops
12:30 pm - 10:45 pmLWS-STL
8h 15m2 stops
$728Delta
Find Deal
Tue, Nov 26 - Sat, Nov 30
7:55 am - 11:50 amSTL-LWS
5h 55m1 stop
7:00 am - 5:43 pmLWS-STL
8h 43m2 stops
$913Delta
Find Deal
Tue, Nov 26 - Sat, Nov 30
1:39 pm - 10:33 pmSTL-LWS
10h 54m1 stop
5:20 am - 12:43 pmLWS-STL
5h 23m1 stop
$1,467United Airlines
Find Deal
Tue, Nov 26 - Sat, Nov 30

United Airlines flights from St. Louis to Idaho

Our best United Airlines deals on St. Louis to Idaho flight tickets
United Airlines
Jan 18
STL9:44 amLambert-St Louis
11h 11m
2 stops
BOI7:55 pmBoise Air Term. Gowen Fld
Jan 25
BOI10:57 amBoise Air Term. Gowen Fld
7h 02m
1 stop
STL6:59 pmLambert-St Louis
United Airlines
Jan 18
STL1:45 pmLambert-St Louis
9h 30m
2 stops
BOI10:15 pmBoise Air Term. Gowen Fld
Jan 25
BOI8:25 amBoise Air Term. Gowen Fld
8h 11m
2 stops
STL5:36 pmLambert-St Louis
United Airlines
Jan 24
STL9:44 amLambert-St Louis
12h 03m
2 stops
JAC8:47 pmJackson Hole
Jan 27
JAC2:32 pmJackson Hole
5h 11m
1 stop
STL8:43 pmLambert-St Louis

Alaska Airlines flights from St. Louis to Idaho

Our best Alaska Airlines deals on St. Louis to Idaho flight tickets
Alaska Airlines
Jan 13
STL2:49 pmLambert-St Louis
26h 56m
2 stops
BOI4:45 pmBoise Air Term. Gowen Fld
Jan 21
BOI2:15 pmBoise Air Term. Gowen Fld
22h 38m
2 stops
STL1:53 pmLambert-St Louis
Alaska Airlines
Jan 23
STL2:49 pmLambert-St Louis
22h 10m
2 stops
JAC11:59 amJackson Hole
Jan 27
JAC12:39 pmJackson Hole
24h 14m
2 stops
STL1:53 pmLambert-St Louis
Alaska Airlines
Mar 23
STL6:44 amLambert-St Louis
29h 23m
1 stop
JAC11:07 amJackson Hole
Mar 27
JAC11:47 amJackson Hole
11h 12m
1 stop
STL11:59 pmLambert-St Louis

See travel insights to Idaho from

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 day to depart on your flight to Idaho?

Our data shows that Sunday is the least expensive day to fly to Idaho. Tickets to fly out on this day can be as low as $0. On the other hand, Friday is the most expensive day to depart from St. Louis because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $513.

Can stopping save me money on St. Louis to Idaho flights?

You could potentially save up to 3% on your flight if you consider stops on a St. Louis to Idaho flight.

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

$157

Fastest flight time

5h 19m

Direct flights

None

Airports in Idaho

4 airports
The best one-way flight to Idaho from St. Louis in the past 72 hours is $157. The best round-trip flight deal from St. Louis to Idaho found on momondo in the last 72 hours is $296.
The fastest flight from St. Louis to Idaho takes 5h 19m
There are no direct flights from St. Louis to Idaho. Popular non-direct routes for this connection are Lambert-St Louis Airport - Jackson Hole Airport, Lambert-St Louis Airport - Boise Air Term. Gowen Fld Airport and Lambert-St Louis Airport - Spokane Airport.
There are 4 airports near Idaho: Idaho Falls Fanning Field (IDA), Spokane (GEG), Jackson Hole (JAC), Boise Air Term. Gowen Fld (BOI)

  • 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.


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
United AirlinesPriceFrom $258Free CancellationRating
7.4
9,156 reviews
Search United Airlines flights
DeltaPriceFrom $296Free CancellationRating
8.0
8,734 reviews
Search Delta flights
American AirlinesPriceFrom $334Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
SouthwestPriceFrom $367Free CancellationRating
8.1
4,984 reviews
Search Southwest flights

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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