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Cheap flights from District of Columbia to Idaho Falls from $262

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 2/12. 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
8:00 am - 10:59 pm
DCA
-
IDA
16h 59m
1 stop
Alaska Airlines Logo
6:58 pm - 4:09 pm
IDA
-
DCA
19h 11m
1 stop
$375Alaska Airlines
Wed, Feb 4 - Mon, Feb 9
Alaska Airlines Logo
7:05 am - 11:36 pm
IAD
-
IDA
18h 31m
1 stop
Alaska Airlines Logo
5:20 pm - 5:20 pm
IDA
-
IAD
22h 00m
1 stop
$375Alaska Airlines
Wed, Feb 18 - Fri, Feb 27
Alaska Airlines Logo
6:04 pm - 6:18 pm
IAD
-
IDA
26h 14m
1 stop
Alaska Airlines Logo
6:58 pm - 4:26 pm
IDA
-
IAD
19h 28m
1 stop
$385Alaska Airlines
Wed, Feb 4 - Mon, Feb 9
Alaska Airlines Logo
5:00 pm - 11:36 pm
DCA
-
IDA
8h 36m
1 stop
Alaska Airlines Logo
5:20 pm - 9:02 pm
IDA
-
DCA
25h 42m
2 stops
$414Alaska Airlines
Wed, Feb 18 - Fri, Feb 27
United Airlines Logo
6:35 am - 1:31 pm
IAD
-
IDA
8h 56m
1 stop
United Airlines Logo
2:35 pm - 12:32 am
IDA
-
IAD
7h 57m
1 stop
$415United Airlines
Mon, Jun 29 - Thu, Jul 2
Alaska Airlines Logo
9:59 am - 10:59 pm
DCA
-
IDA
15h 00m
2 stops
Alaska Airlines Logo
6:58 pm - 4:09 pm
IDA
-
DCA
19h 11m
1 stop
$415Alaska Airlines
Wed, Feb 4 - Mon, Feb 9
American Airlines Logo
10:10 am - 10:36 pm
DCA
-
IDA
14h 26m
2 stops
American Airlines Logo
2:07 pm - 11:00 pm
IDA
-
DCA
6h 53m
1 stop
$420American Airlines
Fri, Jan 30 - Mon, Feb 2
Alaska Airlines Logo
9:59 am - 10:59 pm
DCA
-
IDA
15h 00m
2 stops
Alaska Airlines Logo
6:58 pm - 8:00 pm
IDA
-
DCA
23h 02m
2 stops
$425Alaska Airlines
Wed, Feb 4 - Mon, Feb 9
American Airlines Logo
1:44 pm - 10:36 pm
DCA
-
IDA
10h 52m
2 stops
American Airlines Logo
7:20 am - 9:30 pm
IDA
-
DCA
12h 10m
2 stops
$458American Airlines
Fri, Jan 30 - Mon, Feb 2
Delta Logo
2:15 pm - 10:57 pm
IAD
-
IDA
10h 42m
2 stops
Delta Logo
6:35 pm - 9:13 am
IDA
-
IAD
12h 38m
2 stops
$458Delta
Fri, Jan 30 - Mon, Feb 2

Alaska Airlines flights from District of Columbia to Idaho Falls

Our best Alaska Airlines deals on District of Columbia to Idaho Falls flight tickets
Alaska Airlines
Feb 4
DCA8:00 amWashington, D.C. Reagan-National
16h 59m
1 stop
IDA10:59 pmIdaho Falls Fanning Field
Feb 9
IDA6:58 pmIdaho Falls Fanning Field
19h 11m
1 stop
DCA4:09 pmWashington, D.C. Reagan-National
$375
Alaska Airlines
Feb 4
IAD6:04 pmWashington, D.C. Dulles Intl
26h 14m
1 stop
IDA6:18 pmIdaho Falls Fanning Field
Feb 9
IDA6:58 pmIdaho Falls Fanning Field
19h 28m
1 stop
IAD4:26 pmWashington, D.C. Dulles Intl
$385
Alaska Airlines
Feb 18
DCA5:00 pmWashington, D.C. Reagan-National
8h 36m
1 stop
IDA11:36 pmIdaho Falls Fanning Field
Feb 27
IDA5:20 pmIdaho Falls Fanning Field
25h 42m
2 stops
DCA9:02 pmWashington, D.C. Reagan-National
$414

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
Jun 29
IAD6:35 amWashington, D.C. Dulles Intl
8h 56m
1 stop
IDA1:31 pmIdaho Falls Fanning Field
Jul 2
IDA2:35 pmIdaho Falls Fanning Field
7h 57m
1 stop
IAD12:32 amWashington, D.C. Dulles Intl
$415
United Airlines
Feb 8
IAD10:02 amWashington, D.C. Dulles Intl
7h 29m
1 stop
IDA3:31 pmIdaho Falls Fanning Field
Feb 12
IDA2:40 pmIdaho Falls Fanning Field
6h 39m
1 stop
IAD11:19 pmWashington, D.C. Dulles Intl
$553
United Airlines
Jun 30
IAD6:35 amWashington, D.C. Dulles Intl
8h 56m
1 stop
IDA1:31 pmIdaho Falls Fanning Field
Jul 16
IDA2:35 pmIdaho Falls Fanning Field
7h 57m
1 stop
IAD12:32 amWashington, D.C. Dulles Intl
$558

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 January 12, 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

DCA - IDA

DCAIDA

Washington, D.C. Reagan-National

Wed 2/4

8:00 am-10:59 pm

1 stop16h 59m

Idaho Falls Fanning Field

Mon 2/9

6:58 pm-4:09 pm

1 stop19h 11m

$375

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Wed 2/18

7:05 am-11:36 pm

1 stop18h 31m

Idaho Falls Fanning Field

Fri 2/27

5:20 pm-5:20 pm

1 stop22h 00m

$375

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Wed 2/4

6:04 pm-6:18 pm

1 stop26h 14m

Idaho Falls Fanning Field

Mon 2/9

6:58 pm-4:26 pm

1 stop19h 28m

$385

Washington, D.C.Idaho Falls

DCA - IDA

DCAIDA

Washington, D.C. Reagan-National

Wed 2/18

5:00 pm-11:36 pm

1 stop8h 36m

Idaho Falls Fanning Field

Fri 2/27

5:20 pm-9:02 pm

2 stops25h 42m

$414

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Mon 6/29

6:35 am-1:31 pm

1 stop8h 56m

Idaho Falls Fanning Field

Thu 7/2

2:35 pm-12:32 am

1 stop7h 57m

$415

Washington, D.C.Idaho Falls

DCA - IDA

DCAIDA

Washington, D.C. Reagan-National

Wed 2/4

9:59 am-10:59 pm

2 stops15h 00m

Idaho Falls Fanning Field

Mon 2/9

6:58 pm-4:09 pm

1 stop19h 11m

$415

Washington, D.C.Idaho Falls

DCA - IDA

DCAIDA

Washington, D.C. Reagan-National

Fri 1/30

10:10 am-10:36 pm

2 stops14h 26m

Idaho Falls Fanning Field

Mon 2/2

2:07 pm-11:00 pm

1 stop6h 53m

$420

Washington, D.C.Idaho Falls

DCA - IDA

DCAIDA

Washington, D.C. Reagan-National

Wed 2/4

9:59 am-10:59 pm

2 stops15h 00m

Idaho Falls Fanning Field

Mon 2/9

6:58 pm-8:00 pm

2 stops23h 02m

$425

Washington, D.C.Idaho Falls

DCA - IDA

DCAIDA

Washington, D.C. Reagan-National

Fri 1/30

1:44 pm-10:36 pm

2 stops10h 52m

Idaho Falls Fanning Field

Mon 2/2

7:20 am-9:30 pm

2 stops12h 10m

$458

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Fri 1/30

2:15 pm-10:57 pm

2 stops10h 42m

Idaho Falls Fanning Field

Mon 2/2

6:35 pm-9:13 am

2 stops12h 38m

$458

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 3% 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

7h 03m

Direct flights

None
The fastest flight from District of Columbia to Idaho Falls takes 7h 03m
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 $334Free CancellationRating
7.9
8,039 reviews
Search Delta flights
United AirlinesPriceFrom $388Free CancellationRating
7.4
9,149 reviews
Search United Airlines flights
American AirlinesPriceFrom $480Free CancellationRating
7.2
11,114 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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