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Cheap flights from Idaho Falls to Washington, D.C. 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 Idaho Falls to Washington, D.C. departing on 7/22. 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 Idaho Falls to Washington, D.C.

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
4:10 pm - 12:45 am
IDA
-
IAD
6h 35m
1 stop
United Airlines Logo
6:30 am - 1:25 pm
IAD
-
IDA
8h 55m
1 stop
$399United Airlines
Mon, May 25 - Fri, May 29
American Airlines Logo
7:00 am - 6:27 pm
IDA
-
IAD
9h 27m
1 stop
American Airlines Logo
6:10 am - 11:30 am
IAD
-
IDA
7h 20m
1 stop
$474American Airlines
Wed, Aug 26 - Sun, Aug 30
American Airlines Logo
7:00 am - 6:27 pm
IDA
-
IAD
9h 27m
1 stop
American Airlines Logo
5:08 am - 1:42 pm
IAD
-
IDA
10h 34m
2 stops
$479American Airlines
Wed, Aug 26 - Sun, Aug 30
Alaska Airlines Logo
6:00 am - 4:38 pm
IDA
-
IAD
8h 38m
1 stop
Alaska Airlines Logo
5:35 pm - 3:26 pm
IAD
-
IDA
23h 51m
1 stop
$484Alaska Airlines
Sat, May 23 - Tue, May 26
Alaska Airlines Logo
1:43 pm - 11:59 pm
IDA
-
IAD
8h 16m
1 stop
Alaska Airlines Logo
5:44 pm - 10:56 pm
IAD
-
IDA
31h 12m
1 stop
$490Alaska Airlines
Wed, Jul 22 - Thu, Aug 20
Alaska Airlines Logo
1:43 pm - 11:59 pm
IDA
-
IAD
8h 16m
1 stop
Alaska Airlines Logo
7:29 pm - 10:56 pm
IAD
-
IDA
29h 27m
2 stops
$495Alaska Airlines
Wed, Jul 22 - Thu, Aug 20
United Airlines Logo
2:30 pm - 11:32 pm
IDA
-
IAD
7h 02m
1 stop
United Airlines Logo
6:30 am - 1:25 pm
IAD
-
IDA
8h 55m
1 stop
$496United Airlines
Wed, May 27 - Sun, May 31
Alaska Airlines Logo
1:45 pm - 4:54 pm
IDA
-
IAD
25h 09m
1 stop
Alaska Airlines Logo
9:00 am - 3:37 pm
IAD
-
IDA
8h 37m
1 stop
$500Alaska Airlines
Tue, Sep 8 - Sat, Sep 12
American Airlines Logo
1:53 pm - 10:53 pm
IDA
-
IAD
7h 00m
1 stop
American Airlines Logo
6:10 am - 11:30 am
IAD
-
IDA
7h 20m
1 stop
$505American Airlines
Tue, Aug 4 - Sat, Aug 8
American Airlines Logo
1:41 pm - 10:32 am
IDA
-
IAD
18h 51m
2 stops
American Airlines Logo
2:46 pm - 9:22 pm
IAD
-
IDA
8h 36m
1 stop
$506American Airlines
Tue, Sep 8 - Sat, Sep 12

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

Our best Delta deals on Idaho Falls to Washington, D.C. Dulles Intl Airport flight tickets
Delta
May 14
IDA3:16 pmIdaho Falls Fanning Field
6h 16m
1 stop
IAD11:32 pmWashington, D.C. Dulles Intl
May 16
IAD7:30 amWashington, D.C. Dulles Intl
9h 04m
1 stop
IDA2:34 pmIdaho Falls Fanning Field
$559
Delta
May 14
IDA3:16 pmIdaho Falls Fanning Field
6h 16m
1 stop
IAD11:32 pmWashington, D.C. Dulles Intl
May 16
IAD6:00 amWashington, D.C. Dulles Intl
10h 34m
2 stops
IDA2:34 pmIdaho Falls Fanning Field
$564
Delta
May 28
IDA11:30 amIdaho Falls Fanning Field
11h 21m
2 stops
IAD12:51 amWashington, D.C. Dulles Intl
Jun 1
IAD8:05 amWashington, D.C. Dulles Intl
12h 09m
2 stops
IDA6:14 pmIdaho Falls Fanning Field
$649

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

Our best Alaska Airlines deals on Idaho Falls to Washington, D.C. Dulles Intl Airport flight tickets
Alaska Airlines
May 23
IDA6:00 amIdaho Falls Fanning Field
8h 38m
1 stop
IAD4:38 pmWashington, D.C. Dulles Intl
May 26
IAD5:35 pmWashington, D.C. Dulles Intl
23h 51m
1 stop
IDA3:26 pmIdaho Falls Fanning Field
$484
Alaska Airlines
Jul 22
IDA1:43 pmIdaho Falls Fanning Field
8h 16m
1 stop
IAD11:59 pmWashington, D.C. Dulles Intl
Aug 20
IAD5:44 pmWashington, D.C. Dulles Intl
31h 12m
1 stop
IDA10:56 pmIdaho Falls Fanning Field
$490
Alaska Airlines
Jul 22
IDA1:43 pmIdaho Falls Fanning Field
8h 16m
1 stop
IAD11:59 pmWashington, D.C. Dulles Intl
Aug 20
IAD7:29 pmWashington, D.C. Dulles Intl
29h 27m
2 stops
IDA10:56 pmIdaho Falls Fanning Field
$495

momondo Fare Finder

 
Customize your flight search to find flights from Idaho Falls to Washington, D.C. Dulles Intl Airport 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 May 13, 2026.
Use the filters below to find and compare flights from Idaho Falls to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Idaho FallsWashington, D.C.

IDA - IAD

IDAIAD

Idaho Falls Fanning Field

Mon 5/25

4:10 pm-12:45 am

1 stop6h 35m

Washington, D.C. Dulles Intl

Fri 5/29

6:30 am-1:25 pm

1 stop8h 55m

$399

Idaho FallsWashington, D.C.

IDA - IAD

IDAIAD

Idaho Falls Fanning Field

Wed 8/26

7:00 am-6:27 pm

1 stop9h 27m

Washington, D.C. Dulles Intl

Sun 8/30

6:10 am-11:30 am

1 stop7h 20m

$474

Idaho FallsWashington, D.C.

IDA - IAD

IDAIAD

Idaho Falls Fanning Field

Wed 8/26

7:00 am-6:27 pm

1 stop9h 27m

Washington, D.C. Dulles Intl

Sun 8/30

5:08 am-1:42 pm

2 stops10h 34m

$479

Idaho FallsWashington, D.C.

IDA - IAD

IDAIAD

Idaho Falls Fanning Field

Sat 5/23

6:00 am-4:38 pm

1 stop8h 38m

Washington, D.C. Dulles Intl

Tue 5/26

5:35 pm-3:26 pm

1 stop23h 51m

$484

Idaho FallsWashington, D.C.

IDA - IAD

IDAIAD

Idaho Falls Fanning Field

Wed 7/22

1:43 pm-11:59 pm

1 stop8h 16m

Washington, D.C. Dulles Intl

Thu 8/20

5:44 pm-10:56 pm

1 stop31h 12m

$490

Idaho FallsWashington, D.C.

IDA - IAD

IDAIAD

Idaho Falls Fanning Field

Wed 7/22

1:43 pm-11:59 pm

1 stop8h 16m

Washington, D.C. Dulles Intl

Thu 8/20

7:29 pm-10:56 pm

2 stops29h 27m

$495

Idaho FallsWashington, D.C.

IDA - IAD

IDAIAD

Idaho Falls Fanning Field

Wed 5/27

2:30 pm-11:32 pm

1 stop7h 02m

Washington, D.C. Dulles Intl

Sun 5/31

6:30 am-1:25 pm

1 stop8h 55m

$496

Idaho FallsWashington, D.C.

IDA - IAD

IDAIAD

Idaho Falls Fanning Field

Tue 9/8

1:45 pm-4:54 pm

1 stop25h 09m

Washington, D.C. Dulles Intl

Sat 9/12

9:00 am-3:37 pm

1 stop8h 37m

$500
Quickest round-trip

Idaho FallsWashington, D.C.

IDA - IAD

IDAIAD

Idaho Falls Fanning Field

Tue 8/4

1:53 pm-10:53 pm

1 stop7h 00m

Washington, D.C. Dulles Intl

Sat 8/8

6:10 am-11:30 am

1 stop7h 20m

$505

Idaho FallsWashington, D.C.

IDA - IAD

IDAIAD

Idaho Falls Fanning Field

Tue 9/8

1:41 pm-10:32 am

2 stops18h 51m

Washington, D.C. Dulles Intl

Sat 9/12

2:46 pm-9:22 pm

1 stop8h 36m

$506

Flights are sorted by cheapest round-trip flights first.

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See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from Idaho Falls to Washington, D.C. Dulles Intl Airport

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

What is the cheapest airline that flies from Idaho Falls Fanning Field to Washington, D.C. Dulles Intl?

Alaska Airlines, Delta, and United Airlines are the most popular carriers operating from Idaho Falls Fanning Field to Washington, D.C. Dulles Intl

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

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

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

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

Fastest flight time

6h 30m

Direct flights

None
The fastest flight from Idaho Falls to Washington, D.C. Dulles Intl Airport takes 6h 30m
There are no direct flights from Idaho Falls to Washington, D.C. Dulles Intl Airport. There are no popular flight routes from Idaho Falls to Washington, D.C. Dulles Intl Airport.
Search flight deals

Frequently asked questions about flying from Idaho Falls to Washington, D.C. Dulles Intl Airport

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

    Washington, D.C. Dulles Intl is 1810.0 mi away from Idaho Falls Fanning Field. Typically, this will take 6h 30m by plane in normal conditions.

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

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

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

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Idaho Falls Fanning Field Airport to Washington, D.C. Dulles Intl Airport.

  • What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?

    The required travel and health documents for your Washington, D.C. Dulles Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Washington, D.C. Dulles Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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

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

Compare and see reviews for airlines that fly from Idaho Falls to Washington, D.C. Dulles Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $446Free CancellationRating
7.4
9,706 reviews
Search United Airlines flights

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
National Harbor
Gettysburg
Arlington
Winchester
Waldorf
Woodbridge
Laurel
Gaithersburg
Colonial Beach
Fredericksburg
Silver Spring
Towson
Rockville
Manassas
Sterling
Linthicum Heights
Tysons
Bethesda
Springfield

Why use momondo?

Why should I use momondo to find a flight deal from Idaho Falls to Washington, D.C.?

Finding the right flight to Washington, D.C. from Idaho Falls is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Washington, D.C. quick and easy, saving you time and money.

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

momondo does allow users to show only those flights to Washington, D.C. from Idaho Falls which offer a flexible booking policy as well as other useful filters and features.

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

momondo provides multiple filters to help you find the best flight to Washington, D.C. from Idaho Falls. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

If you are simply researching potential flights to Washington, D.C., momondo offers a useful price alert feature which will track prices for flights to Washington, D.C. from Idaho Falls and alert you when they change.

An easier way to manage your Washington, D.C. Dulles Intl Airport trip

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