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Cheap flights from Missouri to Idaho Falls from $130

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Missouri to Idaho Falls departing on 12/18. 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 Missouri to Idaho Falls

Cheap round-trip flights

Enter your travel dates to find the best prices.
Alaska Airlines Logo
2:45 pm - 10:59 pmMCI-IDA
9h 14m1 stop
Alaska Airlines Logo
9:00 am - 1:50 pmIDA-MCI
27h 50m1 stop
$258Alaska Airlines
Find Deal
Tue, Jan 27 - Tue, Feb 3
Delta Logo
6:24 am - 5:51 pmMCI-IDA
12h 27m2 stops
Delta Logo
5:25 am - 1:58 pmIDA-MCI
7h 33m1 stop
$264Delta
Find Deal
Tue, Jan 27 - Tue, Feb 3
Delta Logo
6:24 am - 5:51 pmMCI-IDA
12h 27m2 stops
Delta Logo
6:35 pm - 9:39 amIDA-MCI
14h 04m2 stops
$269Delta
Find Deal
Tue, Jan 27 - Tue, Feb 3
American Airlines Logo
2:48 pm - 10:34 pmMCI-IDA
8h 46m1 stop
American Airlines Logo
7:00 am - 2:03 pmIDA-MCI
6h 03m1 stop
$321American Airlines
Find Deal
Tue, Dec 2 - Tue, Dec 9
Hawaiian Airlines Logo
2:55 pm - 10:38 pmSTL-IDA
8h 43m1 stop
Hawaiian Airlines Logo
4:00 pm - 11:56 pmIDA-STL
6h 56m1 stop
$332Hawaiian Airlines
Find Deal
Tue, Mar 3 - Wed, Mar 4
Hawaiian Airlines Logo
7:00 am - 3:23 pmSTL-IDA
9h 23m1 stop
Hawaiian Airlines Logo
4:00 pm - 11:56 pmIDA-STL
6h 56m1 stop
$367Hawaiian Airlines
Find Deal
Tue, Mar 3 - Wed, Mar 4
Multiple Airlines Logo
12:58 pm - 10:01 pmMCI-IDA
10h 03m2 stops
Multiple Airlines Logo
7:58 pm - 8:03 pmIDA-MCI
23h 05m1 stop
$391Multiple Airlines
Find Deal
Wed, Nov 26 - Mon, Dec 1
American Airlines Logo
2:48 pm - 10:34 pmMCI-IDA
8h 46m1 stop
American Airlines Logo
7:10 am - 5:00 pmIDA-MCI
8h 50m1 stop
$440American Airlines
Find Deal
Fri, Nov 21 - Mon, Nov 24
United Airlines Logo
8:21 am - 3:40 pmSTL-IDA
8h 19m2 stops
United Airlines Logo
10:45 am - 10:14 pmIDA-STL
10h 29m2 stops
$459United Airlines
Find Deal
Tue, Mar 3 - Wed, Mar 4
United Airlines Logo
8:00 am - 3:16 pmMCI-IDA
8h 16m2 stops
United Airlines Logo
5:00 am - 10:34 amIDA-MCI
4h 34m1 stop
$515United Airlines
Find Deal
Wed, Nov 19 - Sun, Nov 23

Hawaiian Airlines flights from Missouri to Idaho Falls

Our best Hawaiian Airlines deals on Missouri to Idaho Falls flight tickets
Hawaiian Airlines
Mar 3
STL2:55 pmLambert-St Louis
8h 43m
1 stop
IDA10:38 pmIdaho Falls Fanning Field
Mar 4
IDA4:00 pmIdaho Falls Fanning Field
6h 56m
1 stop
STL11:56 pmLambert-St Louis
$332
Find similar
Hawaiian Airlines
Mar 3
STL7:00 amLambert-St Louis
9h 23m
1 stop
IDA3:23 pmIdaho Falls Fanning Field
Mar 4
IDA4:00 pmIdaho Falls Fanning Field
6h 56m
1 stop
STL11:56 pmLambert-St Louis
$367
Find similar

Delta flights from Missouri to Idaho Falls

Our best Delta deals on Missouri to Idaho Falls flight tickets
Delta
Jan 27
MCI6:24 amKansas City
12h 27m
2 stops
IDA5:51 pmIdaho Falls Fanning Field
Feb 3
IDA5:25 amIdaho Falls Fanning Field
7h 33m
1 stop
MCI1:58 pmKansas City
$264
Find similar
Delta
Jan 27
MCI6:24 amKansas City
12h 27m
2 stops
IDA5:51 pmIdaho Falls Fanning Field
Feb 3
IDA6:35 pmIdaho Falls Fanning Field
14h 04m
2 stops
MCI9:39 amKansas City
$269
Find similar
Delta
Mar 3
STL10:13 amLambert-St Louis
13h 08m
2 stops
IDA10:21 pmIdaho Falls Fanning Field
Mar 4
IDA6:28 pmIdaho Falls Fanning Field
4h 56m
1 stop
STL12:24 amLambert-St Louis
$374
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Missouri to Idaho Falls 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 November 6, 2025.
Use the filters below to find and compare flights from Missouri to Idaho Falls that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Kansas CityIdaho Falls

MCI - IDA

MCIIDA

Kansas City

Tue 1/27

2:45 pm-10:59 pm

1 stop9h 14m

Idaho Falls Fanning Field

Tue 2/3

9:00 am-1:50 pm

1 stop27h 50m

$258

Kansas CityIdaho Falls

MCI - IDA

MCIIDA

Kansas City

Tue 1/27

6:24 am-5:51 pm

2 stops12h 27m

Idaho Falls Fanning Field

Tue 2/3

5:25 am-1:58 pm

1 stop7h 33m

$264

Kansas CityIdaho Falls

MCI - IDA

MCIIDA

Kansas City

Tue 1/27

6:24 am-5:51 pm

2 stops12h 27m

Idaho Falls Fanning Field

Tue 2/3

6:35 pm-9:39 am

2 stops14h 04m

$269

Kansas CityIdaho Falls

MCI - IDA

MCIIDA

Kansas City

Tue 12/2

2:48 pm-10:34 pm

1 stop8h 46m

Idaho Falls Fanning Field

Tue 12/9

7:00 am-2:03 pm

1 stop6h 03m

$321

St. LouisIdaho Falls

STL - IDA

STLIDA

Lambert-St Louis

Tue 3/3

2:55 pm-10:38 pm

1 stop8h 43m

Idaho Falls Fanning Field

Wed 3/4

4:00 pm-11:56 pm

1 stop6h 56m

$332

St. LouisIdaho Falls

STL - IDA

STLIDA

Lambert-St Louis

Tue 3/3

7:00 am-3:23 pm

1 stop9h 23m

Idaho Falls Fanning Field

Wed 3/4

4:00 pm-11:56 pm

1 stop6h 56m

$367

Kansas CityIdaho Falls

MCI - IDA

MCIIDA

Kansas City

Wed 11/26

12:58 pm-10:01 pm

2 stops10h 03m

Idaho Falls Fanning Field

Mon 12/1

7:58 pm-8:03 pm

1 stop23h 05m

$391

Kansas CityIdaho Falls

MCI - IDA

MCIIDA

Kansas City

Fri 11/21

2:48 pm-10:34 pm

1 stop8h 46m

Idaho Falls Fanning Field

Mon 11/24

7:10 am-5:00 pm

1 stop8h 50m

$440

St. LouisIdaho Falls

STL - IDA

STLIDA

Lambert-St Louis

Tue 3/3

8:21 am-3:40 pm

2 stops8h 19m

Idaho Falls Fanning Field

Wed 3/4

10:45 am-10:14 pm

2 stops10h 29m

$459

Kansas CityIdaho Falls

MCI - IDA

MCIIDA

Kansas City

Wed 11/19

8:00 am-3:16 pm

2 stops8h 16m

Idaho Falls Fanning Field

Sun 11/23

5:00 am-10:34 am

1 stop4h 34m

$515

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 Idaho Falls from

How to get the cheapest flight ticket from Missouri to Idaho Falls

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 Falls?

Our data shows that Tuesday is the least expensive day to fly to Idaho Falls. Tickets to fly out on this day can be as low as $605. Be sure to avoid booking your departure on a Monday as prices are generally higher than usual. According to our data, the average ticket price to Idaho Falls on Monday is $787.

What is the cheapest time of day to depart on your flight to Idaho Falls?

Our most recent data shows that the best time of day to fly to Idaho Falls is at noon. Flights from Missouri to Idaho Falls during this time can be as low as $651. Try not to purchase tickets in the afternoon because they tend to be around $685. Of course, these prices can vary depending on the time of year and what airport you fly to.

Cheap Missouri to Idaho Falls flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Missouri to Idaho Falls

Direct flights

None
There are no direct flights from Missouri to Idaho Falls. There are no popular flight routes from Missouri to Idaho Falls.
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  • When did momondo last update prices for flights from Missouri to Idaho Falls Fanning Field Airport?

    Prices for flights from Missouri to Idaho Falls Fanning Field Airport were last updated today.

  • How many operators does momondo search for flights from Missouri to Idaho Falls Fanning Field Airport?

  • How old do you have to be to fly from Missouri to Idaho Falls Fanning Field Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Missouri to Idaho Falls Fanning Field Airport.

  • What documentation or ID do you need to fly to Idaho Falls Fanning Field Airport?

    The travel and health documents you'll need for your trip to Idaho Falls Fanning Field 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 Idaho Falls Fanning Field Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Missouri to Idaho Falls

Compare and see reviews for airlines that fly from Missouri to Idaho Falls with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $192Free CancellationRating
7.9
8,001 reviews
Search Delta flights
United AirlinesPriceFrom $236Free CancellationRating
7.4
9,007 reviews
Search United Airlines flights

Traveling to a place near Idaho Falls?

Book flights to Idaho Falls if you plan to visit one of these locations
Rexburg

Why use momondo?

Why should I use momondo to find a flight deal from Missouri to Idaho Falls?

It is quick and easy to find Missouri to Idaho Falls flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Idaho Falls that suits you.

Can I find flights from Missouri to Idaho Falls with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Missouri to Idaho Falls flights to just show those with flexible booking policies.

How can momondo help me find flights from Missouri to Idaho Falls?

momondo provides multiple filters to help you find the best flight to Idaho Falls from Missouri. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

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

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