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Cheap flights from Idaho Falls to Washington, D.C. from $200

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 1/7. 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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Cheap round-trip flights

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American Airlines Logo
7:20 am - 11:12 pmIDA-IAD
13h 52m2 stops
American Airlines Logo
6:00 am - 1:37 pmIAD-IDA
9h 37m1 stop
$407American Airlines
Find Deal
Wed, Jan 7 - Thu, Jan 15
American Airlines Logo
7:20 am - 11:12 pmIDA-IAD
13h 52m2 stops
American Airlines Logo
1:08 pm - 10:36 pmIAD-IDA
11h 28m2 stops
$444American Airlines
Find Deal
Wed, Jan 7 - Thu, Jan 15
Alaska Airlines Logo
6:58 pm - 4:26 pmIDA-IAD
19h 28m1 stop
Alaska Airlines Logo
6:04 pm - 10:59 pmIAD-IDA
30h 55m1 stop
$462Alaska Airlines
Find Deal
Wed, Jan 7 - Thu, Jan 15
Delta Logo
5:25 am - 11:10 pmIDA-IAD
15h 45m2 stops
Delta Logo
7:30 am - 5:51 pmIAD-IDA
12h 21m2 stops
$471Delta
Find Deal
Sun, Jan 25 - Wed, Jan 28
American Airlines Logo
7:20 am - 11:12 pmIDA-IAD
13h 52m2 stops
American Airlines Logo
6:00 am - 1:37 pmIAD-IDA
9h 37m1 stop
$489American Airlines
Find Deal
Wed, Jan 7 - Thu, Jan 15
United Airlines Logo
2:35 pm - 12:32 amIDA-IAD
7h 57m1 stop
United Airlines Logo
6:35 am - 1:31 pmIAD-IDA
8h 56m1 stop
$495United Airlines
Find Deal
Thu, May 21 - Mon, May 25
Delta Logo
5:25 am - 11:10 pmIDA-IAD
15h 45m2 stops
Delta Logo
7:30 am - 5:51 pmIAD-IDA
12h 21m2 stops
$527Delta
Find Deal
Sun, Jan 25 - Wed, Jan 28
Delta Logo
5:25 am - 11:10 pmIDA-IAD
15h 45m2 stops
Delta Logo
7:30 am - 5:51 pmIAD-IDA
12h 21m2 stops
$542Delta
Find Deal
Sun, Jan 25 - Wed, Jan 28
Alaska Airlines Logo
9:00 am - 4:26 pmIDA-IAD
29h 26m1 stop
Alaska Airlines Logo
6:04 pm - 6:18 pmIAD-IDA
26h 14m1 stop
$548Alaska Airlines
Find Deal
Sun, Jan 25 - Wed, Jan 28
United Airlines Logo
2:40 pm - 11:22 pmIDA-IAD
6h 42m1 stop
United Airlines Logo
10:20 pm - 1:30 pmIAD-IDA
17h 10m2 stops
$553United Airlines
Find Deal
Sun, Jan 25 - Wed, Jan 28

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

Our best American Airlines deals on Idaho Falls to Washington, D.C. Dulles Intl Airport flight tickets
American Airlines
Jan 7
IDA7:20 amIdaho Falls Fanning Field
13h 52m
2 stops
IAD11:12 pmWashington, D.C. Dulles Intl
Jan 15
IAD6:00 amWashington, D.C. Dulles Intl
9h 37m
1 stop
IDA1:37 pmIdaho Falls Fanning Field
$407
Find similar
American Airlines
Jan 7
IDA7:20 amIdaho Falls Fanning Field
13h 52m
2 stops
IAD11:12 pmWashington, D.C. Dulles Intl
Jan 15
IAD1:08 pmWashington, D.C. Dulles Intl
11h 28m
2 stops
IDA10:36 pmIdaho Falls Fanning Field
$444
Find similar
American Airlines
Jan 7
IDA7:20 amIdaho Falls Fanning Field
13h 52m
2 stops
IAD11:12 pmWashington, D.C. Dulles Intl
Jan 15
IAD6:00 amWashington, D.C. Dulles Intl
9h 37m
1 stop
IDA1:37 pmIdaho Falls Fanning Field
$489
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
Jan 7
IDA6:58 pmIdaho Falls Fanning Field
19h 28m
1 stop
IAD4:26 pmWashington, D.C. Dulles Intl
Jan 15
IAD6:04 pmWashington, D.C. Dulles Intl
30h 55m
1 stop
IDA10:59 pmIdaho Falls Fanning Field
$462
Find similar
Alaska Airlines
Jan 25
IDA9:00 amIdaho Falls Fanning Field
29h 26m
1 stop
IAD4:26 pmWashington, D.C. Dulles Intl
Jan 28
IAD6:04 pmWashington, D.C. Dulles Intl
26h 14m
1 stop
IDA6:18 pmIdaho Falls Fanning Field
$548
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 November 29, 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

Wed 1/7

7:20 am-11:12 pm

2 stops13h 52m

Washington, D.C. Dulles Intl

Thu 1/15

6:00 am-1:37 pm

1 stop9h 37m

$407

Idaho FallsWashington, D.C.

IDA - IAD

IDAIAD

Idaho Falls Fanning Field

Wed 1/7

7:20 am-11:12 pm

2 stops13h 52m

Washington, D.C. Dulles Intl

Thu 1/15

1:08 pm-10:36 pm

2 stops11h 28m

$444

Idaho FallsWashington, D.C.

IDA - IAD

IDAIAD

Idaho Falls Fanning Field

Wed 1/7

6:58 pm-4:26 pm

1 stop19h 28m

Washington, D.C. Dulles Intl

Thu 1/15

6:04 pm-10:59 pm

1 stop30h 55m

$462

Idaho FallsWashington, D.C.

IDA - IAD

IDAIAD

Idaho Falls Fanning Field

Sun 1/25

5:25 am-11:10 pm

2 stops15h 45m

Washington, D.C. Dulles Intl

Wed 1/28

7:30 am-5:51 pm

2 stops12h 21m

$471

Idaho FallsWashington, D.C.

IDA - IAD

IDAIAD

Idaho Falls Fanning Field

Wed 1/7

7:20 am-11:12 pm

2 stops13h 52m

Washington, D.C. Dulles Intl

Thu 1/15

6:00 am-1:37 pm

1 stop9h 37m

$489

Idaho FallsWashington, D.C.

IDA - IAD

IDAIAD

Idaho Falls Fanning Field

Thu 5/21

2:35 pm-12:32 am

1 stop7h 57m

Washington, D.C. Dulles Intl

Mon 5/25

6:35 am-1:31 pm

1 stop8h 56m

$495

Idaho FallsWashington, D.C.

IDA - IAD

IDAIAD

Idaho Falls Fanning Field

Sun 1/25

5:25 am-11:10 pm

2 stops15h 45m

Washington, D.C. Dulles Intl

Wed 1/28

7:30 am-5:51 pm

2 stops12h 21m

$527

Idaho FallsWashington, D.C.

IDA - IAD

IDAIAD

Idaho Falls Fanning Field

Sun 1/25

5:25 am-11:10 pm

2 stops15h 45m

Washington, D.C. Dulles Intl

Wed 1/28

7:30 am-5:51 pm

2 stops12h 21m

$542

Idaho FallsWashington, D.C.

IDA - IAD

IDAIAD

Idaho Falls Fanning Field

Sun 1/25

9:00 am-4:26 pm

1 stop29h 26m

Washington, D.C. Dulles Intl

Wed 1/28

6:04 pm-6:18 pm

1 stop26h 14m

$548

Idaho FallsWashington, D.C.

IDA - IAD

IDAIAD

Idaho Falls Fanning Field

Sun 1/25

2:40 pm-11:22 pm

1 stop6h 42m

Washington, D.C. Dulles Intl

Wed 1/28

10:20 pm-1:30 pm

2 stops17h 10m

$553

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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

Fastest flight time

7h 57m

Direct flights

None
The fastest flight from Idaho Falls to Washington, D.C. Dulles Intl Airport takes 7h 57m
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 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
9,058 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
Woodbridge
Waldorf
Tysons
Laurel
Colonial Beach
Silver Spring
Fredericksburg
Towson
Harpers Ferry
Rockville
Reston
Manassas
Gaithersburg
Fairfax
Sterling

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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