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Cheap flights from District of Columbia to Idaho Falls from $104

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 8/27. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from District of Columbia to Idaho Falls

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
8:39 pm - 10:22 am
IAD
-
IDA
39h 43m
2 stops
Multiple Airlines Logo
8:33 pm - 8:04 am
IDA
-
IAD
9h 31m
1 stop
$325Multiple Airlines
Wed, Aug 26 - Mon, Aug 31
Multiple Airlines Logo
9:50 am - 4:05 pm
IAD
-
IDA
8h 15m
1 stop
Multiple Airlines Logo
5:33 pm - 8:04 am
IDA
-
IAD
12h 31m
1 stop
$333Multiple Airlines
Mon, Aug 17 - Fri, Aug 21
United Airlines Logo
6:30 am - 1:29 pm
IAD
-
IDA
8h 59m
1 stop
United Airlines Logo
4:04 pm - 12:32 am
IDA
-
IAD
6h 28m
1 stop
$349United Airlines
Fri, Aug 28 - Mon, Aug 31
Delta Logo
5:59 pm - 10:32 pm
DCA
-
IDA
6h 33m
1 stop
Delta Logo
6:00 am - 4:44 pm
IDA
-
DCA
8h 44m
1 stop
$359Delta
Wed, Aug 19 - Wed, Aug 26
Delta Logo
7:00 am - 12:22 pm
IAD
-
IDA
7h 22m
1 stop
Delta Logo
1:10 pm - 11:46 pm
IDA
-
IAD
8h 36m
1 stop
$359Delta
Thu, Nov 5 - Wed, Nov 11
Delta Logo
12:23 pm - 10:32 pm
DCA
-
IDA
12h 09m
2 stops
Delta Logo
6:00 am - 4:44 pm
IDA
-
DCA
8h 44m
1 stop
$364Delta
Wed, Aug 19 - Wed, Aug 26
Delta Logo
7:00 am - 2:35 pm
IAD
-
IDA
9h 35m
1 stop
Delta Logo
11:35 am - 11:26 pm
IDA
-
IAD
9h 51m
2 stops
$364Delta
Thu, Aug 27 - Tue, Sep 1
Alaska Airlines Logo
7:00 am - 3:20 pm
IAD
-
IDA
10h 20m
1 stop
Alaska Airlines Logo
1:58 pm - 11:59 pm
IDA
-
IAD
8h 01m
1 stop
$373Alaska Airlines
Tue, Sep 29 - Tue, Oct 6
American Airlines Logo
6:30 am - 1:28 pm
DCA
-
IDA
8h 58m
1 stop
American Airlines Logo
1:58 pm - 11:59 pm
IDA
-
DCA
8h 01m
1 stop
$374American Airlines
Thu, Oct 1 - Sat, Oct 3
American Airlines Logo
6:09 am - 11:30 am
IAD
-
IDA
7h 21m
1 stop
American Airlines Logo
7:00 am - 6:27 pm
IDA
-
IAD
9h 27m
1 stop
$374American Airlines
Tue, Aug 18 - Tue, Aug 25

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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
Sep 29
IAD7:00 amWashington, D.C. Dulles Intl
10h 20m
1 stop
IDA3:20 pmIdaho Falls Fanning Field
Oct 6
IDA1:58 pmIdaho Falls Fanning Field
8h 01m
1 stop
IAD11:59 pmWashington, D.C. Dulles Intl
$373
Alaska Airlines
Sep 25
IAD7:00 amWashington, D.C. Dulles Intl
10h 20m
1 stop
IDA3:20 pmIdaho Falls Fanning Field
Oct 1
IDA6:18 amIdaho Falls Fanning Field
8h 36m
1 stop
IAD4:54 pmWashington, D.C. Dulles Intl
$429
Alaska Airlines
Sep 14
IAD5:57 pmWashington, D.C. Dulles Intl
30h 59m
1 stop
IDA10:56 pmIdaho Falls Fanning Field
Sep 22
IDA2:01 pmIdaho Falls Fanning Field
7h 58m
1 stop
IAD11:59 pmWashington, D.C. Dulles Intl
$470

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
Oct 1
DCA6:30 amWashington, D.C. Reagan-National
8h 58m
1 stop
IDA1:28 pmIdaho Falls Fanning Field
Oct 3
IDA1:58 pmIdaho Falls Fanning Field
8h 01m
1 stop
DCA11:59 pmWashington, D.C. Reagan-National
$374
American Airlines
Aug 11
DCA7:35 amWashington, D.C. Reagan-National
7h 34m
1 stop
IDA1:09 pmIdaho Falls Fanning Field
Aug 17
IDA1:43 pmIdaho Falls Fanning Field
8h 16m
1 stop
DCA11:59 pmWashington, D.C. Reagan-National
$384
American Airlines
Aug 27
IAD6:09 amWashington, D.C. Dulles Intl
7h 21m
1 stop
IDA11:30 amIdaho Falls Fanning Field
Sep 1
IDA7:00 amIdaho Falls Fanning Field
9h 27m
1 stop
IAD6:27 pmWashington, D.C. Dulles Intl
$399

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 July 26, 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 8/26

8:39 pm-10:22 am

2 stops39h 43m

Idaho Falls Fanning Field

Mon 8/31

8:33 pm-8:04 am

1 stop9h 31m

$325

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Mon 8/17

9:50 am-4:05 pm

1 stop8h 15m

Idaho Falls Fanning Field

Fri 8/21

5:33 pm-8:04 am

1 stop12h 31m

$333

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Fri 8/28

6:30 am-1:29 pm

1 stop8h 59m

Idaho Falls Fanning Field

Mon 8/31

4:04 pm-12:32 am

1 stop6h 28m

$349
Quickest round-trip

Washington, D.C.Idaho Falls

DCA - IDA

DCAIDA

Washington, D.C. Reagan-National

Wed 8/19

5:59 pm-10:32 pm

1 stop6h 33m

Idaho Falls Fanning Field

Wed 8/26

6:00 am-4:44 pm

1 stop8h 44m

$359

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Thu 11/5

7:00 am-12:22 pm

1 stop7h 22m

Idaho Falls Fanning Field

Wed 11/11

1:10 pm-11:46 pm

1 stop8h 36m

$359

Washington, D.C.Idaho Falls

DCA - IDA

DCAIDA

Washington, D.C. Reagan-National

Wed 8/19

12:23 pm-10:32 pm

2 stops12h 09m

Idaho Falls Fanning Field

Wed 8/26

6:00 am-4:44 pm

1 stop8h 44m

$364

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Thu 8/27

7:00 am-2:35 pm

1 stop9h 35m

Idaho Falls Fanning Field

Tue 9/1

11:35 am-11:26 pm

2 stops9h 51m

$364

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Tue 9/29

7:00 am-3:20 pm

1 stop10h 20m

Idaho Falls Fanning Field

Tue 10/6

1:58 pm-11:59 pm

1 stop8h 01m

$373

Washington, D.C.Idaho Falls

DCA - IDA

DCAIDA

Washington, D.C. Reagan-National

Thu 10/1

6:30 am-1:28 pm

1 stop8h 58m

Idaho Falls Fanning Field

Sat 10/3

1:58 pm-11:59 pm

1 stop8h 01m

$374

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Tue 8/18

6:09 am-11:30 am

1 stop7h 21m

Idaho Falls Fanning Field

Tue 8/25

7:00 am-6:27 pm

1 stop9h 27m

$374

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 36% 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 23m

Direct flights

None
The fastest flight from District of Columbia to Idaho Falls takes 6h 23m
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
10,039 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $433Free CancellationRating
7.9
12,715 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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