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Cheap flights from Missouri to Idaho Falls from $165

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 6/13. 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 Missouri to Idaho Falls

Cheap round-trip flights

Enter your travel dates to find the best prices.
Alaska Airlines Logo
3:11 pm - 10:54 pm
MCI
-
IDA
8h 43m
1 stop
Alaska Airlines Logo
1:46 pm - 11:59 pm
IDA
-
MCI
9h 13m
1 stop
$349Alaska Airlines
Tue, Oct 20 - Sat, Oct 24
Delta Logo
2:10 pm - 10:32 pm
MCI
-
IDA
9h 22m
2 stops
Delta Logo
6:00 am - 1:57 pm
IDA
-
MCI
6h 57m
1 stop
$354Delta
Tue, Jul 14 - Tue, Jul 21
Delta Logo
2:10 pm - 10:32 pm
MCI
-
IDA
9h 22m
2 stops
Delta Logo
6:00 am - 3:14 pm
IDA
-
MCI
8h 14m
2 stops
$359Delta
Tue, Jul 14 - Tue, Jul 21
Delta Logo
7:02 am - 10:43 am
MCI
-
IDA
4h 41m
1 stop
Delta Logo
11:25 am - 5:06 pm
IDA
-
MCI
4h 41m
1 stop
$375Delta
Thu, Jun 18 - Thu, Jun 25
Alaska Airlines Logo
5:52 pm - 1:17 pm
MCI
-
IDA
20h 25m
1 stop
Alaska Airlines Logo
1:54 pm - 11:49 pm
IDA
-
MCI
8h 55m
1 stop
$389Alaska Airlines
Wed, Jun 3 - Tue, Jun 9
United Airlines Logo
4:45 pm - 9:07 pm
STL
-
IDA
5h 22m
1 stop
United Airlines Logo
5:54 pm - 11:57 pm
IDA
-
STL
5h 03m
1 stop
$404United Airlines
Sat, May 23 - Wed, May 27
Multiple Airlines Logo
3:34 pm - 4:00 pm
STL
-
IDA
25h 26m
2 stops
Multiple Airlines Logo
10:47 pm - 6:05 pm
IDA
-
STL
18h 18m
1 stop
$405Multiple Airlines
Thu, Jul 23 - Mon, Jul 27
United Airlines Logo
5:10 am - 9:50 am
STL
-
IDA
5h 40m
1 stop
United Airlines Logo
5:54 pm - 11:57 pm
IDA
-
STL
5h 03m
1 stop
$436United Airlines
Fri, Jul 10 - Tue, Jul 14
American Airlines Logo
7:55 pm - 12:12 pm
SGF
-
IDA
17h 17m
1 stop
American Airlines Logo
1:44 pm - 1:18 pm
IDA
-
SGF
22h 34m
1 stop
$701American Airlines
Tue, Sep 8 - Sun, Sep 13
American Airlines Logo
7:55 pm - 12:12 pm
SGF
-
IDA
17h 17m
1 stop
American Airlines Logo
1:44 pm - 1:18 pm
IDA
-
SGF
22h 34m
1 stop
$706American Airlines
Tue, Sep 8 - Sun, Sep 13

Alaska Airlines flights from Missouri to Idaho Falls

Our best Alaska Airlines deals on Missouri to Idaho Falls flight tickets
Alaska Airlines
Oct 20
MCI3:11 pmKansas City
8h 43m
1 stop
IDA10:54 pmIdaho Falls Fanning Field
Oct 24
IDA6:09 amIdaho Falls Fanning Field
7h 08m
1 stop
MCI2:17 pmKansas City
$349
Alaska Airlines
Jun 3
MCI5:52 pmKansas City
20h 25m
1 stop
IDA1:17 pmIdaho Falls Fanning Field
Jun 9
IDA1:54 pmIdaho Falls Fanning Field
8h 55m
1 stop
MCI11:49 pmKansas City
$389
Alaska Airlines
Jun 20
MCI5:50 pmKansas City
20h 16m
1 stop
IDA1:06 pmIdaho Falls Fanning Field
Jun 24
IDA1:43 pmIdaho Falls Fanning Field
9h 16m
1 stop
MCI11:59 pmKansas City
$419

United Airlines flights from Missouri to Idaho Falls

Our best United Airlines deals on Missouri to Idaho Falls flight tickets
United Airlines
Aug 9
MCI6:00 amKansas City
4h 50m
1 stop
IDA9:50 amIdaho Falls Fanning Field
Aug 12
IDA4:04 pmIdaho Falls Fanning Field
6h 26m
1 stop
MCI11:30 pmKansas City
$361
United Airlines
May 23
STL4:45 pmLambert-St Louis
5h 22m
1 stop
IDA9:07 pmIdaho Falls Fanning Field
May 27
IDA5:54 pmIdaho Falls Fanning Field
5h 03m
1 stop
STL11:57 pmLambert-St Louis
$404
United Airlines
Jul 10
STL5:10 amLambert-St Louis
5h 40m
1 stop
IDA9:50 amIdaho Falls Fanning Field
Jul 14
IDA5:54 pmIdaho Falls Fanning Field
5h 03m
1 stop
STL11:57 pmLambert-St Louis
$436

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 May 10, 2026.
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

Cheapest round-trip

Kansas CityIdaho Falls

MCI - IDA

MCIIDA

Kansas City

Tue 10/20

3:11 pm-10:54 pm

1 stop8h 43m

Idaho Falls Fanning Field

Sat 10/24

1:46 pm-11:59 pm

1 stop9h 13m

$349

Kansas CityIdaho Falls

MCI - IDA

MCIIDA

Kansas City

Tue 7/14

2:10 pm-10:32 pm

2 stops9h 22m

Idaho Falls Fanning Field

Tue 7/21

6:00 am-1:57 pm

1 stop6h 57m

$354

Kansas CityIdaho Falls

MCI - IDA

MCIIDA

Kansas City

Tue 7/14

2:10 pm-10:32 pm

2 stops9h 22m

Idaho Falls Fanning Field

Tue 7/21

6:00 am-3:14 pm

2 stops8h 14m

$359
Quickest round-trip

Kansas CityIdaho Falls

MCI - IDA

MCIIDA

Kansas City

Thu 6/18

7:02 am-10:43 am

1 stop4h 41m

Idaho Falls Fanning Field

Thu 6/25

11:25 am-5:06 pm

1 stop4h 41m

$375

Kansas CityIdaho Falls

MCI - IDA

MCIIDA

Kansas City

Wed 6/3

5:52 pm-1:17 pm

1 stop20h 25m

Idaho Falls Fanning Field

Tue 6/9

1:54 pm-11:49 pm

1 stop8h 55m

$389

St. LouisIdaho Falls

STL - IDA

STLIDA

Lambert-St Louis

Sat 5/23

4:45 pm-9:07 pm

1 stop5h 22m

Idaho Falls Fanning Field

Wed 5/27

5:54 pm-11:57 pm

1 stop5h 03m

$404

St. LouisIdaho Falls

STL - IDA

STLIDA

Lambert-St Louis

Thu 7/23

3:34 pm-4:00 pm

2 stops25h 26m

Idaho Falls Fanning Field

Mon 7/27

10:47 pm-6:05 pm

1 stop18h 18m

$405

St. LouisIdaho Falls

STL - IDA

STLIDA

Lambert-St Louis

Fri 7/10

5:10 am-9:50 am

1 stop5h 40m

Idaho Falls Fanning Field

Tue 7/14

5:54 pm-11:57 pm

1 stop5h 03m

$436

SpringfieldIdaho Falls

SGF - IDA

SGFIDA

Springfield-Branson

Tue 9/8

7:55 pm-12:12 pm

1 stop17h 17m

Idaho Falls Fanning Field

Sun 9/13

1:44 pm-1:18 pm

1 stop22h 34m

$701

SpringfieldIdaho Falls

SGF - IDA

SGFIDA

Springfield-Branson

Tue 9/8

7:55 pm-12:12 pm

1 stop17h 17m

Idaho Falls Fanning Field

Sun 9/13

1:44 pm-1:18 pm

1 stop22h 34m

$706

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 month to fly to Idaho Falls?

If you aren’t able to travel to Idaho Falls during the month of May, then flying in August is also cheap. Prices for this month can be found on momondo for an average of $192.

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

Fastest flight time

4h 41m

Direct flights

None
The fastest flight from Missouri to Idaho Falls takes 4h 41m
There are no direct flights from Missouri to Idaho Falls. There are no popular flight routes from Missouri to Idaho Falls.
Search flight deals

Frequently asked questions about flying from Missouri to Idaho Falls

  • 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 $163Free CancellationRating
7.9
8,454 reviews
Search Delta flights
United AirlinesPriceFrom $252Free CancellationRating
7.4
9,694 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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