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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 5/13. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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.
American Airlines Logo
5:00 am - 11:30 am
DCA
-
IDA
8h 30m
1 stop
American Airlines Logo
2:20 pm - 11:58 pm
IDA
-
DCA
7h 38m
1 stop
$349American Airlines
Tue, Aug 11 - Tue, Aug 25
Alaska Airlines Logo
6:00 am - 3:26 pm
IAD
-
IDA
11h 26m
1 stop
Alaska Airlines Logo
1:54 pm - 11:59 pm
IDA
-
IAD
8h 05m
1 stop
$349Alaska Airlines
Sat, May 30 - Tue, Jun 9
American Airlines Logo
11:34 am - 9:20 pm
DCA
-
IDA
11h 46m
2 stops
American Airlines Logo
12:10 pm - 11:58 pm
IDA
-
DCA
9h 48m
1 stop
$354American Airlines
Tue, Aug 18 - Tue, Aug 25
United Airlines Logo
2:37 pm - 9:03 pm
IAD
-
IDA
8h 26m
1 stop
United Airlines Logo
2:31 pm - 11:34 pm
IDA
-
IAD
7h 03m
1 stop
$375United Airlines
Tue, May 5 - Tue, May 12
United Airlines Logo
6:30 am - 1:25 pm
IAD
-
IDA
8h 55m
1 stop
United Airlines Logo
4:10 pm - 12:45 am
IDA
-
IAD
6h 35m
1 stop
$380United Airlines
Tue, Jul 28 - Thu, Jul 30
Alaska Airlines Logo
7:10 am - 3:29 pm
IAD
-
IDA
10h 19m
1 stop
Alaska Airlines Logo
1:54 pm - 11:59 pm
IDA
-
IAD
8h 05m
1 stop
$399Alaska Airlines
Tue, May 12 - Tue, May 19
Delta Logo
2:55 pm - 10:40 pm
DCA
-
IDA
9h 45m
2 stops
Delta Logo
6:54 pm - 5:07 pm
IDA
-
DCA
20h 13m
2 stops
$407Delta
Wed, May 6 - Mon, May 11
American Airlines Logo
7:30 am - 1:44 pm
DCA
-
IDA
8h 14m
1 stop
American Airlines Logo
12:12 pm - 11:58 pm
IDA
-
DCA
9h 46m
1 stop
$410American Airlines
Sat, Sep 12 - Wed, Sep 16
American Airlines Logo
6:10 am - 11:30 am
IAD
-
IDA
7h 20m
1 stop
American Airlines Logo
7:00 am - 6:27 pm
IDA
-
IAD
9h 27m
1 stop
$410American Airlines
Tue, Aug 11 - Tue, Aug 25
United Airlines Logo
6:30 am - 1:25 pm
IAD
-
IDA
8h 55m
1 stop
United Airlines Logo
4:10 pm - 12:45 am
IDA
-
IAD
6h 35m
1 stop
$411United Airlines
Mon, Jun 1 - Fri, Jun 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
May 5
IAD2:37 pmWashington, D.C. Dulles Intl
8h 26m
1 stop
IDA9:03 pmIdaho Falls Fanning Field
May 12
IDA2:31 pmIdaho Falls Fanning Field
7h 03m
1 stop
IAD11:34 pmWashington, D.C. Dulles Intl
$375
United Airlines
Jul 28
IAD6:30 amWashington, D.C. Dulles Intl
8h 55m
1 stop
IDA1:25 pmIdaho Falls Fanning Field
Jul 30
IDA4:10 pmIdaho Falls Fanning Field
6h 35m
1 stop
IAD12:45 amWashington, D.C. Dulles Intl
$380
United Airlines
Jun 1
IAD6:30 amWashington, D.C. Dulles Intl
8h 55m
1 stop
IDA1:25 pmIdaho Falls Fanning Field
Jun 5
IDA4:10 pmIdaho Falls Fanning Field
6h 35m
1 stop
IAD12:45 amWashington, D.C. Dulles Intl
$411

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
May 30
IAD6:00 amWashington, D.C. Dulles Intl
11h 26m
1 stop
IDA3:26 pmIdaho Falls Fanning Field
Jun 9
IDA1:54 pmIdaho Falls Fanning Field
8h 05m
1 stop
IAD11:59 pmWashington, D.C. Dulles Intl
$349
Alaska Airlines
May 12
IAD7:10 amWashington, D.C. Dulles Intl
10h 19m
1 stop
IDA3:29 pmIdaho Falls Fanning Field
May 19
IDA1:54 pmIdaho Falls Fanning Field
8h 05m
1 stop
IAD11:59 pmWashington, D.C. Dulles Intl
$399
Alaska Airlines
May 4
IAD7:20 pmWashington, D.C. Dulles Intl
22h 09m
1 stop
IDA3:29 pmIdaho Falls Fanning Field
May 6
IDA4:06 pmIdaho Falls Fanning Field
11h 44m
1 stop
IAD5:50 amWashington, D.C. Dulles Intl
$429

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 April 17, 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

DCA - IDA

DCAIDA

Washington, D.C. Reagan-National

Tue 8/11

5:00 am-11:30 am

1 stop8h 30m

Idaho Falls Fanning Field

Tue 8/25

2:20 pm-11:58 pm

1 stop7h 38m

$349

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Sat 5/30

6:00 am-3:26 pm

1 stop11h 26m

Idaho Falls Fanning Field

Tue 6/9

1:54 pm-11:59 pm

1 stop8h 05m

$349

Washington, D.C.Idaho Falls

DCA - IDA

DCAIDA

Washington, D.C. Reagan-National

Tue 8/18

11:34 am-9:20 pm

2 stops11h 46m

Idaho Falls Fanning Field

Tue 8/25

12:10 pm-11:58 pm

1 stop9h 48m

$354
Quickest round-trip

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Tue 5/5

2:37 pm-9:03 pm

1 stop8h 26m

Idaho Falls Fanning Field

Tue 5/12

2:31 pm-11:34 pm

1 stop7h 03m

$375

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Tue 7/28

6:30 am-1:25 pm

1 stop8h 55m

Idaho Falls Fanning Field

Thu 7/30

4:10 pm-12:45 am

1 stop6h 35m

$380

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Tue 5/12

7:10 am-3:29 pm

1 stop10h 19m

Idaho Falls Fanning Field

Tue 5/19

1:54 pm-11:59 pm

1 stop8h 05m

$399

Washington, D.C.Idaho Falls

DCA - IDA

DCAIDA

Washington, D.C. Reagan-National

Wed 5/6

2:55 pm-10:40 pm

2 stops9h 45m

Idaho Falls Fanning Field

Mon 5/11

6:54 pm-5:07 pm

2 stops20h 13m

$407

Washington, D.C.Idaho Falls

DCA - IDA

DCAIDA

Washington, D.C. Reagan-National

Sat 9/12

7:30 am-1:44 pm

1 stop8h 14m

Idaho Falls Fanning Field

Wed 9/16

12:12 pm-11:58 pm

1 stop9h 46m

$410

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Tue 8/11

6:10 am-11:30 am

1 stop7h 20m

Idaho Falls Fanning Field

Tue 8/25

7:00 am-6:27 pm

1 stop9h 27m

$410

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Mon 6/1

6:30 am-1:25 pm

1 stop8h 55m

Idaho Falls Fanning Field

Fri 6/5

4:10 pm-12:45 am

1 stop6h 35m

$411

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 2% 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.
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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 $333Free CancellationRating
7.4
9,594 reviews
Search United Airlines flights
American AirlinesPriceFrom $434Free CancellationRating
7.1
11,584 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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