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Cheap flights from District of Columbia to Idaho Falls from $246

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 7/10. 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
7:00 am - 4:19 pm
IAD
-
IDA
11h 19m
1 stop
Alaska Airlines Logo
4:59 pm - 5:40 am
IDA
-
IAD
10h 41m
1 stop
$354Alaska Airlines
Thu, Apr 16 - Sat, Apr 18
Alaska Airlines Logo
7:00 am - 10:52 pm
IAD
-
IDA
17h 52m
1 stop
Alaska Airlines Logo
5:59 pm - 5:40 am
IDA
-
IAD
9h 41m
1 stop
$382Alaska Airlines
Sat, Mar 21 - Thu, Mar 26
United Airlines Logo
6:30 am - 1:25 pm
IAD
-
IDA
8h 55m
1 stop
United Airlines Logo
2:30 pm - 12:45 am
IDA
-
IAD
8h 15m
1 stop
$399United Airlines
Tue, Jul 7 - Tue, Jul 14
United Airlines Logo
6:30 am - 1:25 pm
IAD
-
IDA
8h 55m
1 stop
United Airlines Logo
2:30 pm - 12:45 am
IDA
-
IAD
8h 15m
1 stop
$404United Airlines
Tue, Jun 9 - Fri, Jun 12
Alaska Airlines Logo
7:00 am - 10:52 pm
IAD
-
IDA
17h 52m
1 stop
Alaska Airlines Logo
6:00 am - 6:11 pm
IDA
-
IAD
10h 11m
1 stop
$422Alaska Airlines
Sat, Mar 21 - Thu, Mar 26
United Airlines Logo
6:30 am - 1:25 pm
IAD
-
IDA
8h 55m
1 stop
United Airlines Logo
2:30 pm - 12:45 am
IDA
-
IAD
8h 15m
1 stop
$424United Airlines
Tue, Jul 14 - Thu, Jul 23
American Airlines Logo
7:00 am - 1:13 pm
IAD
-
IDA
8h 13m
1 stop
American Airlines Logo
7:48 am - 11:26 pm
IDA
-
IAD
13h 38m
2 stops
$439American Airlines
Thu, Apr 16 - Sat, Apr 18
American Airlines Logo
6:57 am - 1:13 pm
DCA
-
IDA
8h 16m
1 stop
American Airlines Logo
1:43 pm - 10:56 pm
IDA
-
DCA
7h 13m
1 stop
$444American Airlines
Thu, Apr 30 - Tue, May 5
American Airlines Logo
7:00 am - 1:13 pm
IAD
-
IDA
8h 13m
1 stop
American Airlines Logo
1:43 pm - 11:26 pm
IDA
-
IAD
7h 43m
1 stop
$444American Airlines
Thu, Apr 16 - Sat, Apr 18
American Airlines Logo
6:00 am - 1:13 pm
DCA
-
IDA
9h 13m
1 stop
American Airlines Logo
7:48 am - 11:57 pm
IDA
-
DCA
14h 09m
2 stops
$449American Airlines
Thu, Apr 30 - Tue, May 5

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
Jul 7
IAD6:30 amWashington, D.C. Dulles Intl
8h 55m
1 stop
IDA1:25 pmIdaho Falls Fanning Field
Jul 14
IDA2:30 pmIdaho Falls Fanning Field
8h 15m
1 stop
IAD12:45 amWashington, D.C. Dulles Intl
$399
United Airlines
Jun 9
IAD6:30 amWashington, D.C. Dulles Intl
8h 55m
1 stop
IDA1:25 pmIdaho Falls Fanning Field
Jun 12
IDA2:30 pmIdaho Falls Fanning Field
8h 15m
1 stop
IAD12:45 amWashington, D.C. Dulles Intl
$404
United Airlines
Jul 14
IAD6:30 amWashington, D.C. Dulles Intl
8h 55m
1 stop
IDA1:25 pmIdaho Falls Fanning Field
Jul 23
IDA2:30 pmIdaho Falls Fanning Field
8h 15m
1 stop
IAD12:45 amWashington, D.C. Dulles Intl
$424

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
Apr 16
IAD7:00 amWashington, D.C. Dulles Intl
8h 13m
1 stop
IDA1:13 pmIdaho Falls Fanning Field
Apr 18
IDA7:48 amIdaho Falls Fanning Field
13h 38m
2 stops
IAD11:26 pmWashington, D.C. Dulles Intl
$439
American Airlines
Apr 30
DCA6:57 amWashington, D.C. Reagan-National
8h 16m
1 stop
IDA1:13 pmIdaho Falls Fanning Field
May 5
IDA1:43 pmIdaho Falls Fanning Field
7h 13m
1 stop
DCA10:56 pmWashington, D.C. Reagan-National
$444
American Airlines
Apr 30
DCA6:00 amWashington, D.C. Reagan-National
9h 13m
1 stop
IDA1:13 pmIdaho Falls Fanning Field
May 5
IDA7:48 amIdaho Falls Fanning Field
14h 09m
2 stops
DCA11:57 pmWashington, D.C. Reagan-National
$449

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 March 1, 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

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Thu 4/16

7:00 am-4:19 pm

1 stop11h 19m

Idaho Falls Fanning Field

Sat 4/18

4:59 pm-5:40 am

1 stop10h 41m

$354

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Sat 3/21

7:00 am-10:52 pm

1 stop17h 52m

Idaho Falls Fanning Field

Thu 3/26

5:59 pm-5:40 am

1 stop9h 41m

$382

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Tue 7/7

6:30 am-1:25 pm

1 stop8h 55m

Idaho Falls Fanning Field

Tue 7/14

2:30 pm-12:45 am

1 stop8h 15m

$399

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Tue 6/9

6:30 am-1:25 pm

1 stop8h 55m

Idaho Falls Fanning Field

Fri 6/12

2:30 pm-12:45 am

1 stop8h 15m

$404

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Sat 3/21

7:00 am-10:52 pm

1 stop17h 52m

Idaho Falls Fanning Field

Thu 3/26

6:00 am-6:11 pm

1 stop10h 11m

$422

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Tue 7/14

6:30 am-1:25 pm

1 stop8h 55m

Idaho Falls Fanning Field

Thu 7/23

2:30 pm-12:45 am

1 stop8h 15m

$424

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Thu 4/16

7:00 am-1:13 pm

1 stop8h 13m

Idaho Falls Fanning Field

Sat 4/18

7:48 am-11:26 pm

2 stops13h 38m

$439

Washington, D.C.Idaho Falls

DCA - IDA

DCAIDA

Washington, D.C. Reagan-National

Thu 4/30

6:57 am-1:13 pm

1 stop8h 16m

Idaho Falls Fanning Field

Tue 5/5

1:43 pm-10:56 pm

1 stop7h 13m

$444

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Thu 4/16

7:00 am-1:13 pm

1 stop8h 13m

Idaho Falls Fanning Field

Sat 4/18

1:43 pm-11:26 pm

1 stop7h 43m

$444

Washington, D.C.Idaho Falls

DCA - IDA

DCAIDA

Washington, D.C. Reagan-National

Thu 4/30

6:00 am-1:13 pm

1 stop9h 13m

Idaho Falls Fanning Field

Tue 5/5

7:48 am-11:57 pm

2 stops14h 09m

$449

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 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 25% 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 43m

Direct flights

None
The fastest flight from District of Columbia to Idaho Falls takes 6h 43m
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.
Search flight deals

  • 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
DeltaPriceFrom $360Free CancellationRating
7.9
8,244 reviews
Search Delta flights
United AirlinesPriceFrom $388Free CancellationRating
7.4
9,370 reviews
Search United Airlines flights
American AirlinesPriceFrom $480Free CancellationRating
7.1
11,370 reviews
Search American 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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