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Cheap flights from District of Columbia to Idaho Falls from $175

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from District of Columbia to Idaho Falls departing on 8/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from District of Columbia to Idaho Falls

Cheap round-trip flights

Enter your travel dates to find the best prices.
Alaska Airlines Logo
7:46 am - 3:17 pm
IAD
-
IDA
9h 31m
1 stop
Alaska Airlines Logo
1:53 pm - 5:51 am
IDA
-
IAD
13h 58m
1 stop
$349Alaska Airlines
Wed, Nov 4 - Tue, Nov 10
Delta Logo
10:05 am - 10:19 pm
IAD
-
IDA
14h 14m
2 stops
Delta Logo
1:10 pm - 11:46 pm
IDA
-
IAD
8h 36m
1 stop
$354Delta
Wed, Nov 4 - Tue, Nov 10
Delta Logo
10:05 am - 10:19 pm
IAD
-
IDA
14h 14m
2 stops
Delta Logo
1:10 pm - 12:20 am
IDA
-
IAD
9h 10m
2 stops
$383Delta
Wed, Nov 4 - Tue, Nov 10
United Airlines Logo
10:10 am - 3:23 pm
IAD
-
IDA
7h 13m
1 stop
United Airlines Logo
4:04 pm - 12:32 am
IDA
-
IAD
6h 28m
1 stop
$404United Airlines
Wed, Aug 19 - Mon, Aug 24
Delta Logo
5:59 pm - 10:32 pm
DCA
-
IDA
6h 33m
1 stop
Delta Logo
7:00 pm - 10:09 am
IDA
-
DCA
13h 09m
2 stops
$409Delta
Tue, Aug 11 - Tue, Aug 18
United Airlines Logo
10:10 am - 3:23 pm
IAD
-
IDA
7h 13m
1 stop
United Airlines Logo
2:25 pm - 11:19 pm
IDA
-
IAD
6h 54m
1 stop
$419United Airlines
Sat, Aug 22 - Sat, Aug 29
United Airlines Logo
2:43 pm - 9:18 pm
IAD
-
IDA
8h 35m
1 stop
United Airlines Logo
4:04 pm - 12:32 am
IDA
-
IAD
6h 28m
1 stop
$426United Airlines
Tue, Aug 18 - Mon, Aug 24
American Airlines Logo
7:35 am - 1:09 pm
DCA
-
IDA
7h 34m
1 stop
American Airlines Logo
2:20 pm - 11:58 pm
IDA
-
DCA
7h 38m
1 stop
$440American Airlines
Tue, Aug 18 - Mon, Aug 24
American Airlines Logo
6:11 am - 1:50 pm
IAD
-
IDA
9h 39m
1 stop
American Airlines Logo
7:00 am - 6:27 pm
IDA
-
IAD
9h 27m
1 stop
$444American Airlines
Mon, Aug 17 - Wed, Aug 26
Multiple Airlines Logo
8:33 pm - 8:58 am
IAD
-
IDA
38h 25m
2 stops
Multiple Airlines Logo
10:54 pm - 7:50 am
IDA
-
IAD
30h 56m
1 stop
$478Multiple Airlines
Tue, Aug 11 - Mon, Aug 17

American Airlines flights from District of Columbia to Idaho Falls

Our best American Airlines deals on District of Columbia to Idaho Falls flight tickets
American Airlines
Aug 18
DCA7:35 amWashington, D.C. Reagan-National
7h 34m
1 stop
IDA1:09 pmIdaho Falls Fanning Field
Aug 24
IDA2:20 pmIdaho Falls Fanning Field
7h 38m
1 stop
DCA11:58 pmWashington, D.C. Reagan-National
$440
American Airlines
Aug 17
IAD6:11 amWashington, D.C. Dulles Intl
9h 39m
1 stop
IDA1:50 pmIdaho Falls Fanning Field
Aug 26
IDA7:00 amIdaho Falls Fanning Field
9h 27m
1 stop
IAD6:27 pmWashington, D.C. Dulles Intl
$444
American Airlines
Aug 11
DCA6:59 amWashington, D.C. Reagan-National
8h 51m
1 stop
IDA1:50 pmIdaho Falls Fanning Field
Aug 17
IDA1:43 pmIdaho Falls Fanning Field
17h 33m
1 stop
DCA9:16 amWashington, D.C. Reagan-National
$447

United Airlines flights from District of Columbia to Idaho Falls

Our best United Airlines deals on District of Columbia to Idaho Falls flight tickets
United Airlines
Aug 19
IAD10:10 amWashington, D.C. Dulles Intl
7h 13m
1 stop
IDA3:23 pmIdaho Falls Fanning Field
Aug 24
IDA4:04 pmIdaho Falls Fanning Field
6h 28m
1 stop
IAD12:32 amWashington, D.C. Dulles Intl
$404
United Airlines
Aug 22
IAD10:10 amWashington, D.C. Dulles Intl
7h 13m
1 stop
IDA3:23 pmIdaho Falls Fanning Field
Aug 29
IDA2:25 pmIdaho Falls Fanning Field
6h 54m
1 stop
IAD11:19 pmWashington, D.C. Dulles Intl
$419
United Airlines
Aug 18
IAD2:43 pmWashington, D.C. Dulles Intl
8h 35m
1 stop
IDA9:18 pmIdaho Falls Fanning Field
Aug 24
IDA4:04 pmIdaho Falls Fanning Field
6h 28m
1 stop
IAD12:32 amWashington, D.C. Dulles Intl
$426

momondo Fare Finder

 
Customize your flight search to find flights from District of Columbia 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 June 2, 2026.
Use the filters below to find and compare flights from District of Columbia to Idaho Falls that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Wed 11/4

7:46 am-3:17 pm

1 stop9h 31m

Idaho Falls Fanning Field

Tue 11/10

1:53 pm-5:51 am

1 stop13h 58m

$349

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Wed 11/4

10:05 am-10:19 pm

2 stops14h 14m

Idaho Falls Fanning Field

Tue 11/10

1:10 pm-11:46 pm

1 stop8h 36m

$354

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Wed 11/4

10:05 am-10:19 pm

2 stops14h 14m

Idaho Falls Fanning Field

Tue 11/10

1:10 pm-12:20 am

2 stops9h 10m

$383
Quickest round-trip

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Wed 8/19

10:10 am-3:23 pm

1 stop7h 13m

Idaho Falls Fanning Field

Mon 8/24

4:04 pm-12:32 am

1 stop6h 28m

$404

Washington, D.C.Idaho Falls

DCA - IDA

DCAIDA

Washington, D.C. Reagan-National

Tue 8/11

5:59 pm-10:32 pm

1 stop6h 33m

Idaho Falls Fanning Field

Tue 8/18

7:00 pm-10:09 am

2 stops13h 09m

$409

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Sat 8/22

10:10 am-3:23 pm

1 stop7h 13m

Idaho Falls Fanning Field

Sat 8/29

2:25 pm-11:19 pm

1 stop6h 54m

$419

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Tue 8/18

2:43 pm-9:18 pm

1 stop8h 35m

Idaho Falls Fanning Field

Mon 8/24

4:04 pm-12:32 am

1 stop6h 28m

$426

Washington, D.C.Idaho Falls

DCA - IDA

DCAIDA

Washington, D.C. Reagan-National

Tue 8/18

7:35 am-1:09 pm

1 stop7h 34m

Idaho Falls Fanning Field

Mon 8/24

2:20 pm-11:58 pm

1 stop7h 38m

$440

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Mon 8/17

6:11 am-1:50 pm

1 stop9h 39m

Idaho Falls Fanning Field

Wed 8/26

7:00 am-6:27 pm

1 stop9h 27m

$444

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Tue 8/11

8:33 pm-8:58 am

2 stops38h 25m

Idaho Falls Fanning Field

Mon 8/17

10:54 pm-7:50 am

1 stop30h 56m

$478

Flights are sorted by cheapest round-trip flights first.

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How to get the cheapest flight ticket from District of Columbia 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

Can stopping save me money on District of Columbia to Idaho Falls flights?

You could potentially save up to 44% on your flight if you consider stops on a District of Columbia to Idaho Falls flight.

Cheap District of Columbia to Idaho Falls flight deals and tips

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

Fastest flight time

6h 33m

Direct flights

None
The fastest flight from District of Columbia to Idaho Falls takes 6h 33m
There are no direct flights from District of Columbia to Idaho Falls. There are no popular flight routes from District of Columbia to Idaho Falls.
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Frequently asked questions about flying from District of Columbia to Idaho Falls

  • When did momondo last update prices for flights from District of Columbia to Idaho Falls Fanning Field Airport?

    Prices for flights from District of Columbia to Idaho Falls Fanning Field Airport are updated daily.

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

  • How old do you have to be to fly from District of Columbia to Idaho Falls Fanning Field 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 District of Columbia 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 District of Columbia to Idaho Falls

Compare and see reviews for airlines that fly from District of Columbia to Idaho Falls with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $275Free CancellationRating
7.4
9,772 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $433Free CancellationRating
7.9
12,462 reviews
Search Alaska 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 District of Columbia to Idaho Falls?

It is quick and easy to find District of Columbia 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 District of Columbia to Idaho Falls with flexible booking policies on momondo?

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

How can momondo help me find flights from District of Columbia to Idaho Falls?

Once all potential District of Columbia to Idaho Falls flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

If you are simply researching potential flights to Idaho Falls, momondo offers a useful price alert feature which will track prices for flights to Idaho Falls from District of Columbia and alert you when they change.

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