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Cheap flights from Idaho Falls to Washington, D.C. from $213

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 10/20. 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

Alaska Airlines Logo
3:50 pm - 6:23 amIDA-IAD
12h 33m1 stop
Alaska Airlines Logo
7:43 am - 3:13 pmIAD-IDA
9h 30m1 stop
$412Alaska Airlines
Find Deal
Tue, Nov 4 - Sat, Nov 8
United Airlines Logo
2:35 pm - 11:22 pmIDA-IAD
6h 47m1 stop
United Airlines Logo
2:45 pm - 8:52 pmIAD-IDA
8h 07m1 stop
$413United Airlines
Find Deal
Tue, Oct 7 - Sat, Oct 11
Hawaiian Airlines Logo
8:00 am - 5:55 pmIDA-IAD
7h 55m1 stop
Hawaiian Airlines Logo
7:00 am - 3:23 pmIAD-IDA
10h 23m1 stop
$414Hawaiian Airlines
Find Deal
Fri, Mar 6 - Tue, Mar 10
American Airlines Logo
12:55 pm - 10:51 pmIDA-IAD
7h 56m1 stop
American Airlines Logo
6:11 am - 12:41 pmIAD-IDA
8h 30m1 stop
$415American Airlines
Find Deal
Mon, Oct 27 - Thu, Oct 30
American Airlines Logo
7:10 am - 10:28 pmIDA-IAD
13h 18m2 stops
American Airlines Logo
6:04 am - 1:28 pmIAD-IDA
9h 24m1 stop
$418American Airlines
Find Deal
Sat, Nov 8 - Wed, Nov 19
American Airlines Logo
12:55 pm - 11:53 pmIDA-IAD
8h 58m2 stops
American Airlines Logo
6:11 am - 12:41 pmIAD-IDA
8h 30m1 stop
$419American Airlines
Find Deal
Sat, Oct 25 - Fri, Oct 31
American Airlines Logo
1:58 pm - 10:59 pmIDA-IAD
7h 01m1 stop
American Airlines Logo
9:15 am - 10:36 pmIAD-IDA
15h 21m2 stops
$420American Airlines
Find Deal
Mon, Dec 8 - Thu, Dec 11
United Airlines Logo
2:45 pm - 11:15 pmIDA-IAD
6h 30m1 stop
United Airlines Logo
12:40 pm - 5:46 pmIAD-IDA
7h 06m1 stop
$451United Airlines
Find Deal
Mon, Oct 27 - Sat, Nov 1
Delta Logo
1:05 pm - 11:50 pmIDA-IAD
8h 45m1 stop
Delta Logo
10:05 am - 10:21 pmIAD-IDA
14h 16m2 stops
$521Delta
Find Deal
Fri, Mar 6 - Tue, Mar 10
Delta Logo
1:05 pm - 11:50 pmIDA-IAD
8h 45m1 stop
Delta Logo
10:05 am - 10:21 pmIAD-IDA
14h 16m2 stops
$544Delta
Find Deal
Fri, Mar 6 - Tue, Mar 10

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
Mar 6
IDA1:05 pmIdaho Falls Fanning Field
8h 45m
1 stop
IAD11:50 pmWashington, D.C. Dulles Intl
Mar 10
IAD10:05 amWashington, D.C. Dulles Intl
14h 16m
2 stops
IDA10:21 pmIdaho Falls Fanning Field
$521
Find similar
Delta
Mar 6
IDA1:05 pmIdaho Falls Fanning Field
8h 45m
1 stop
IAD11:50 pmWashington, D.C. Dulles Intl
Mar 10
IAD10:05 amWashington, D.C. Dulles Intl
14h 16m
2 stops
IDA10:21 pmIdaho Falls Fanning Field
$544
Find similar
Delta
Mar 6
IDA6:00 amIdaho Falls Fanning Field
15h 35m
2 stops
IAD11:35 pmWashington, D.C. Dulles Intl
Mar 10
IAD10:05 amWashington, D.C. Dulles Intl
14h 16m
2 stops
IDA10:21 pmIdaho Falls Fanning Field
$601
Find similar

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
Nov 4
IDA3:50 pmIdaho Falls Fanning Field
12h 33m
1 stop
IAD6:23 amWashington, D.C. Dulles Intl
Nov 8
IAD7:43 amWashington, D.C. Dulles Intl
9h 30m
1 stop
IDA3:13 pmIdaho Falls Fanning Field
$412
Find similar
Alaska Airlines
Oct 7
IDA6:00 amIdaho Falls Fanning Field
16h 23m
1 stop
IAD12:23 amWashington, D.C. Dulles Intl
Oct 11
IAD6:25 amWashington, D.C. Dulles Intl
18h 13m
1 stop
IDA10:38 pmIdaho Falls Fanning Field
$442
Find similar
Alaska Airlines
Nov 9
IDA3:50 pmIdaho Falls Fanning Field
12h 33m
1 stop
IAD6:23 amWashington, D.C. Dulles Intl
Nov 10
IAD6:13 pmWashington, D.C. Dulles Intl
23h 00m
1 stop
IDA3:13 pmIdaho Falls Fanning Field
$475
Find similar

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 September 17, 2025.
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

Idaho FallsWashington, D.C.

IDA - IAD

IDAIAD

Idaho Falls Fanning Field

Tue 11/4

3:50 pm-6:23 am

1 stop12h 33m

Washington, D.C. Dulles Intl

Sat 11/8

7:43 am-3:13 pm

1 stop9h 30m

$412

Idaho FallsWashington, D.C.

IDA - IAD

IDAIAD

Idaho Falls Fanning Field

Tue 10/7

2:35 pm-11:22 pm

1 stop6h 47m

Washington, D.C. Dulles Intl

Sat 10/11

2:45 pm-8:52 pm

1 stop8h 07m

$413

Idaho FallsWashington, D.C.

IDA - IAD

IDAIAD

Idaho Falls Fanning Field

Fri 3/6

8:00 am-5:55 pm

1 stop7h 55m

Washington, D.C. Dulles Intl

Tue 3/10

7:00 am-3:23 pm

1 stop10h 23m

$414

Idaho FallsWashington, D.C.

IDA - IAD

IDAIAD

Idaho Falls Fanning Field

Mon 10/27

12:55 pm-10:51 pm

1 stop7h 56m

Washington, D.C. Dulles Intl

Thu 10/30

6:11 am-12:41 pm

1 stop8h 30m

$415

Idaho FallsWashington, D.C.

IDA - IAD

IDAIAD

Idaho Falls Fanning Field

Sat 11/8

7:10 am-10:28 pm

2 stops13h 18m

Washington, D.C. Dulles Intl

Wed 11/19

6:04 am-1:28 pm

1 stop9h 24m

$418

Idaho FallsWashington, D.C.

IDA - IAD

IDAIAD

Idaho Falls Fanning Field

Sat 10/25

12:55 pm-11:53 pm

2 stops8h 58m

Washington, D.C. Dulles Intl

Fri 10/31

6:11 am-12:41 pm

1 stop8h 30m

$419

Idaho FallsWashington, D.C.

IDA - IAD

IDAIAD

Idaho Falls Fanning Field

Mon 12/8

1:58 pm-10:59 pm

1 stop7h 01m

Washington, D.C. Dulles Intl

Thu 12/11

9:15 am-10:36 pm

2 stops15h 21m

$420

Idaho FallsWashington, D.C.

IDA - IAD

IDAIAD

Idaho Falls Fanning Field

Mon 10/27

2:45 pm-11:15 pm

1 stop6h 30m

Washington, D.C. Dulles Intl

Sat 11/1

12:40 pm-5:46 pm

1 stop7h 06m

$451

Idaho FallsWashington, D.C.

IDA - IAD

IDAIAD

Idaho Falls Fanning Field

Fri 3/6

1:05 pm-11:50 pm

1 stop8h 45m

Washington, D.C. Dulles Intl

Tue 3/10

10:05 am-10:21 pm

2 stops14h 16m

$521

Idaho FallsWashington, D.C.

IDA - IAD

IDAIAD

Idaho Falls Fanning Field

Fri 3/6

1:05 pm-11:50 pm

1 stop8h 45m

Washington, D.C. Dulles Intl

Tue 3/10

10:05 am-10:21 pm

2 stops14h 16m

$544

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 day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Our data shows that Wednesday is the least expensive day to fly to Washington, D.C. Dulles Intl Airport. Tickets to fly out on this day can be as low as $596. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Idaho Falls to Washington, D.C. Dulles Intl Airport for around $853.

What is the cheapest time of day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Flying to Washington, D.C. Dulles Intl Airport from Idaho Falls at noon is the least expensive time of day to depart. momondo users have found prices as low as $651 when looking at flights departing at noon. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $686 on average. Flights to Washington, D.C. Dulles Intl Airport from Idaho Falls in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

Direct flights

None
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

  • 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 01m 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 $464Free CancellationRating
7.4
8,926 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
Gettysburg
National Harbor
Arlington
Winchester
Woodbridge
Waldorf
Tysons
Laurel
Colonial Beach
Silver Spring
Fredericksburg
Harpers Ferry
Towson
Rockville
Manassas
Reston
Fairfax
Glen Burnie
Gaithersburg

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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