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Cheap flights from Washington, D.C. Dulles Intl Airport to Idaho Falls from $180

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. Dulles Intl Airport to Idaho Falls departing on 7/14. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Washington, D.C. Dulles Intl Airport to Idaho Falls

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
9:50 am - 3:40 pm
IAD
-
IDA
7h 50m
1 stop
United Airlines Logo
10:50 am - 6:47 pm
IDA
-
IAD
5h 57m
1 stop
$359United Airlines
Tue, Mar 3 - Sat, Mar 7
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
$386Alaska Airlines
Thu, Apr 16 - Sat, Apr 18
Alaska Airlines Logo
6:22 pm - 4:19 pm
IAD
-
IDA
23h 57m
2 stops
Alaska Airlines Logo
6:00 am - 6:20 pm
IDA
-
IAD
10h 20m
1 stop
$396Alaska Airlines
Mon, Apr 20 - Fri, Apr 24
Alaska Airlines Logo
7:00 am - 10:52 pm
IAD
-
IDA
17h 52m
1 stop
Alaska Airlines Logo
4:59 pm - 5:40 am
IDA
-
IAD
10h 41m
1 stop
$423Alaska 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
4:06 pm - 12:09 am
IDA
-
IAD
30h 03m
1 stop
$428Alaska Airlines
Mon, Apr 20 - Fri, Apr 24
Alaska Airlines Logo
9:00 am - 3:26 pm
IAD
-
IDA
8h 26m
1 stop
Alaska Airlines Logo
6:00 am - 4:35 pm
IDA
-
IAD
8h 35m
1 stop
$436Alaska Airlines
Wed, May 13 - Fri, May 15
Alaska Airlines Logo
6:22 pm - 10:52 pm
IAD
-
IDA
30h 30m
2 stops
Alaska Airlines Logo
4:06 pm - 5:41 pm
IDA
-
IAD
23h 35m
2 stops
$448Alaska Airlines
Mon, Apr 20 - Fri, Apr 24
Alaska Airlines Logo
7:37 pm - 10:53 pm
IAD
-
IDA
29h 16m
2 stops
Alaska Airlines Logo
6:00 am - 4:35 pm
IDA
-
IAD
8h 35m
1 stop
$456Alaska Airlines
Wed, May 13 - Fri, May 15
Alaska Airlines Logo
7:11 pm - 10:52 pm
IAD
-
IDA
29h 41m
1 stop
Alaska Airlines Logo
4:59 pm - 5:40 am
IDA
-
IAD
10h 41m
1 stop
$472Alaska Airlines
Tue, Mar 31 - Tue, Apr 7
Alaska Airlines Logo
6:27 pm - 4:43 pm
IAD
-
IDA
24h 16m
1 stop
Alaska Airlines Logo
5:20 pm - 5:40 am
IDA
-
IAD
10h 20m
1 stop
$484Alaska Airlines
Mon, Mar 2 - Mon, Mar 16

Alaska Airlines flights from Washington, D.C. Dulles Intl Airport to Idaho Falls

Our best Alaska Airlines deals on Washington, D.C. Dulles Intl Airport to Idaho Falls flight tickets
Alaska Airlines
Apr 16
IAD7:00 amWashington, D.C. Dulles Intl
11h 19m
1 stop
IDA4:19 pmIdaho Falls Fanning Field
Apr 18
IDA4:59 pmIdaho Falls Fanning Field
10h 41m
1 stop
IAD5:40 amWashington, D.C. Dulles Intl
$386
Alaska Airlines
Apr 20
IAD6:22 pmWashington, D.C. Dulles Intl
23h 57m
2 stops
IDA4:19 pmIdaho Falls Fanning Field
Apr 24
IDA6:00 amIdaho Falls Fanning Field
10h 20m
1 stop
IAD6:20 pmWashington, D.C. Dulles Intl
$396
Alaska Airlines
Apr 16
IAD7:00 amWashington, D.C. Dulles Intl
17h 52m
1 stop
IDA10:52 pmIdaho Falls Fanning Field
Apr 18
IDA4:59 pmIdaho Falls Fanning Field
10h 41m
1 stop
IAD5:40 amWashington, D.C. Dulles Intl
$423

United Airlines flights from Washington, D.C. Dulles Intl Airport to Idaho Falls

Our best United Airlines deals on Washington, D.C. Dulles Intl Airport to Idaho Falls flight tickets
United Airlines
Mar 3
IAD9:50 amWashington, D.C. Dulles Intl
7h 50m
1 stop
IDA3:40 pmIdaho Falls Fanning Field
Mar 7
IDA10:50 amIdaho Falls Fanning Field
5h 57m
1 stop
IAD6:47 pmWashington, D.C. Dulles Intl
$359
United Airlines
Apr 10
IAD5:20 pmWashington, D.C. Dulles Intl
18h 33m
1 stop
IDA9:53 amIdaho Falls Fanning Field
Apr 13
IDA2:30 pmIdaho Falls Fanning Field
7h 04m
1 stop
IAD11:34 pmWashington, D.C. Dulles Intl
$487
United Airlines
Apr 17
IAD5:20 pmWashington, D.C. Dulles Intl
18h 33m
1 stop
IDA9:53 amIdaho Falls Fanning Field
Apr 19
IDA2:30 pmIdaho Falls Fanning Field
7h 04m
1 stop
IAD11:34 pmWashington, D.C. Dulles Intl
$492

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Dulles Intl Airport 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 February 16, 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport 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

Tue 3/3

9:50 am-3:40 pm

1 stop7h 50m

Idaho Falls Fanning Field

Sat 3/7

10:50 am-6:47 pm

1 stop5h 57m

$359

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

$386

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Mon 4/20

6:22 pm-4:19 pm

2 stops23h 57m

Idaho Falls Fanning Field

Fri 4/24

6:00 am-6:20 pm

1 stop10h 20m

$396

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Thu 4/16

7:00 am-10:52 pm

1 stop17h 52m

Idaho Falls Fanning Field

Sat 4/18

4:59 pm-5:40 am

1 stop10h 41m

$423

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Mon 4/20

7:00 am-10:52 pm

1 stop17h 52m

Idaho Falls Fanning Field

Fri 4/24

4:06 pm-12:09 am

1 stop30h 03m

$428

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Wed 5/13

9:00 am-3:26 pm

1 stop8h 26m

Idaho Falls Fanning Field

Fri 5/15

6:00 am-4:35 pm

1 stop8h 35m

$436

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Mon 4/20

6:22 pm-10:52 pm

2 stops30h 30m

Idaho Falls Fanning Field

Fri 4/24

4:06 pm-5:41 pm

2 stops23h 35m

$448

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Wed 5/13

7:37 pm-10:53 pm

2 stops29h 16m

Idaho Falls Fanning Field

Fri 5/15

6:00 am-4:35 pm

1 stop8h 35m

$456

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Tue 3/31

7:11 pm-10:52 pm

1 stop29h 41m

Idaho Falls Fanning Field

Tue 4/7

4:59 pm-5:40 am

1 stop10h 41m

$472

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Mon 3/2

6:27 pm-4:43 pm

1 stop24h 16m

Idaho Falls Fanning Field

Mon 3/16

5:20 pm-5:40 am

1 stop10h 20m

$484

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 Washington, D.C. Dulles Intl Airport 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 Washington, D.C. Dulles Intl Airport to Idaho Falls flights?

You could potentially save up to 6% on your flight if you consider stops on a Washington, D.C. Dulles Intl Airport to Idaho Falls flight.

When to book flights from Washington, D.C. Dulles Intl Airport to Idaho Falls

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. Dulles Intl Airport to Idaho Falls according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Washington, D.C. Dulles Intl Airport to Idaho Falls (IAD to IDA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Dulles Intl Airport to Idaho Falls

Fastest flight time

7h 00m

Direct flights

None
The fastest flight from Washington, D.C. Dulles Intl Airport to Idaho Falls takes 7h 00m
There are no direct flights from Washington, D.C. Dulles Intl Airport to Idaho Falls. There are no popular flight routes from Washington, D.C. Dulles Intl Airport to Idaho Falls.
Search flight deals

  • How far is Washington, D.C. Dulles Intl to Idaho Falls Fanning Field by plane?

    There are 1810.0 mi between Washington, D.C. Dulles Intl and Idaho Falls Fanning Field. A reasonable flight in good conditions will take 7h 00m.

  • When did momondo last update prices for flights from Washington, D.C. Dulles Intl Airport to Idaho Falls Fanning Field Airport?

    Prices for flights from Washington, D.C. Dulles Intl Airport to Idaho Falls Fanning Field Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Washington, D.C. Dulles Intl Airport to Idaho Falls Fanning Field Airport?

  • How old do you have to be to fly from Washington, D.C. Dulles Intl Airport to Idaho Falls Fanning Field Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington, D.C. Dulles Intl Airport 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.

  • What is the most popular airline from Washington, D.C. Dulles Intl Airport to Idaho Falls?

Best airlines flying from Washington, D.C. Dulles Intl Airport to Idaho Falls

Compare and see reviews for airlines that fly from Washington, D.C. Dulles Intl Airport to Idaho Falls with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $388Free CancellationRating
7.4
9,299 reviews
Search United Airlines flights

Traveling to a place near Idaho Falls?

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Can I find flights from Washington, D.C. to Idaho Falls with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Idaho Falls from Washington, D.C. with this policy.

How can momondo help me find flights from Washington, D.C. to Idaho Falls?

Once you have performed a search for Washington, D.C. to Idaho Falls flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Washington, D.C. to Idaho Falls right now. Can momondo alert me if prices change?

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