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Cheap flights from Idaho Falls to Washington, D.C. from $119

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 5/5. 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.
American Airlines Logo
7:48 am - 11:59 pm
IDA
-
DCA
14h 11m
2 stops
American Airlines Logo
5:15 pm - 11:39 pm
DCA
-
IDA
8h 24m
1 stop
$436American Airlines
Wed, Apr 8 - Tue, Apr 14
American Airlines Logo
7:48 am - 11:59 pm
IDA
-
DCA
14h 11m
2 stops
American Airlines Logo
11:36 am - 11:39 pm
DCA
-
IDA
14h 03m
2 stops
$441American Airlines
Wed, Apr 8 - Tue, Apr 14
American Airlines Logo
6:03 am - 7:49 pm
IDA
-
DCA
11h 46m
2 stops
American Airlines Logo
1:54 pm - 11:24 pm
DCA
-
IDA
11h 30m
2 stops
$480American Airlines
Sat, Feb 21 - Wed, Feb 25
American Airlines Logo
12:41 pm - 11:53 pm
IDA
-
DCA
9h 12m
1 stop
American Airlines Logo
7:43 am - 1:13 pm
DCA
-
IDA
7h 30m
1 stop
$490American Airlines
Thu, Jul 16 - Sun, Jul 19
American Airlines Logo
1:43 pm - 11:59 pm
IDA
-
DCA
8h 16m
1 stop
American Airlines Logo
5:15 pm - 11:39 pm
DCA
-
IDA
8h 24m
1 stop
$506American Airlines
Wed, Apr 8 - Tue, Apr 14
American Airlines Logo
6:03 am - 7:49 pm
IDA
-
DCA
11h 46m
2 stops
American Airlines Logo
1:44 pm - 11:24 pm
DCA
-
IDA
11h 40m
2 stops
$591American Airlines
Sat, Feb 21 - Thu, Feb 26
Alaska Airlines Logo
6:00 am - 4:28 pm
IDA
-
DCA
8h 28m
1 stop
Alaska Airlines Logo
6:59 pm - 10:45 pm
DCA
-
IDA
29h 46m
2 stops
$607Alaska Airlines
Tue, May 12 - Tue, May 12
Alaska Airlines Logo
6:00 am - 9:59 pm
IDA
-
DCA
13h 59m
1 stop
Alaska Airlines Logo
5:00 pm - 5:19 pm
DCA
-
IDA
26h 19m
1 stop
$646Alaska Airlines
Thu, Mar 26 - Mon, Mar 30
United Airlines Logo
6:35 am - 2:59 pm
IDA
-
DCA
6h 24m
1 stop
United Airlines Logo
6:00 am - 3:40 pm
DCA
-
IDA
11h 40m
2 stops
$687United Airlines
Sat, Feb 21 - Wed, Feb 25
Alaska Airlines Logo
8:00 am - 7:11 am
IDA
-
DCA
21h 11m
2 stops
Alaska Airlines Logo
9:35 am - 11:36 pm
DCA
-
IDA
16h 01m
2 stops
$699Alaska Airlines
Mon, Feb 23 - Fri, Feb 27

Delta flights from Idaho Falls to Washington, D.C. Reagan-National Airport

Our best Delta deals on Idaho Falls to Washington, D.C. Reagan-National Airport flight tickets
Delta
Feb 13
IDA6:35 pmIdaho Falls Fanning Field
13h 44m
2 stops
DCA10:19 amWashington, D.C. Reagan-National
Feb 15
DCA5:10 pmWashington, D.C. Reagan-National
7h 11m
1 stop
IDA10:21 pmIdaho Falls Fanning Field
$609
Delta
Feb 13
IDA5:25 amIdaho Falls Fanning Field
8h 35m
1 stop
DCA4:00 pmWashington, D.C. Reagan-National
Feb 15
DCA5:10 pmWashington, D.C. Reagan-National
7h 11m
1 stop
IDA10:21 pmIdaho Falls Fanning Field
$684
Delta
Feb 22
IDA6:35 pmIdaho Falls Fanning Field
13h 51m
2 stops
DCA10:26 amWashington, D.C. Reagan-National
Feb 25
DCA11:06 amWashington, D.C. Reagan-National
13h 15m
2 stops
IDA10:21 pmIdaho Falls Fanning Field
$769

American Airlines flights from Idaho Falls to Washington, D.C. Reagan-National Airport

Our best American Airlines deals on Idaho Falls to Washington, D.C. Reagan-National Airport flight tickets
American Airlines
Apr 8
IDA7:48 amIdaho Falls Fanning Field
14h 11m
2 stops
DCA11:59 pmWashington, D.C. Reagan-National
Apr 14
DCA5:15 pmWashington, D.C. Reagan-National
8h 24m
1 stop
IDA11:39 pmIdaho Falls Fanning Field
$436
American Airlines
Apr 8
IDA7:48 amIdaho Falls Fanning Field
14h 11m
2 stops
DCA11:59 pmWashington, D.C. Reagan-National
Apr 14
DCA11:36 amWashington, D.C. Reagan-National
14h 03m
2 stops
IDA11:39 pmIdaho Falls Fanning Field
$441
American Airlines
Feb 21
IDA6:03 amIdaho Falls Fanning Field
11h 46m
2 stops
DCA7:49 pmWashington, D.C. Reagan-National
Feb 25
DCA1:54 pmWashington, D.C. Reagan-National
11h 30m
2 stops
IDA11:24 pmIdaho Falls Fanning Field
$480

momondo Fare Finder

 
Customize your flight search to find flights from Idaho Falls to Washington, D.C. Reagan-National 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 February 9, 2026.
Use the filters below to find and compare flights from Idaho Falls to Washington, D.C. Reagan-National Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Idaho FallsWashington, D.C.

IDA - DCA

IDADCA

Idaho Falls Fanning Field

Wed 4/8

7:48 am-11:59 pm

2 stops14h 11m

Washington, D.C. Reagan-National

Tue 4/14

5:15 pm-11:39 pm

1 stop8h 24m

$436

Idaho FallsWashington, D.C.

IDA - DCA

IDADCA

Idaho Falls Fanning Field

Wed 4/8

7:48 am-11:59 pm

2 stops14h 11m

Washington, D.C. Reagan-National

Tue 4/14

11:36 am-11:39 pm

2 stops14h 03m

$441

Idaho FallsWashington, D.C.

IDA - DCA

IDADCA

Idaho Falls Fanning Field

Sat 2/21

6:03 am-7:49 pm

2 stops11h 46m

Washington, D.C. Reagan-National

Wed 2/25

1:54 pm-11:24 pm

2 stops11h 30m

$480

Idaho FallsWashington, D.C.

IDA - DCA

IDADCA

Idaho Falls Fanning Field

Thu 7/16

12:41 pm-11:53 pm

1 stop9h 12m

Washington, D.C. Reagan-National

Sun 7/19

7:43 am-1:13 pm

1 stop7h 30m

$490

Idaho FallsWashington, D.C.

IDA - DCA

IDADCA

Idaho Falls Fanning Field

Wed 4/8

1:43 pm-11:59 pm

1 stop8h 16m

Washington, D.C. Reagan-National

Tue 4/14

5:15 pm-11:39 pm

1 stop8h 24m

$506

Idaho FallsWashington, D.C.

IDA - DCA

IDADCA

Idaho Falls Fanning Field

Sat 2/21

6:03 am-7:49 pm

2 stops11h 46m

Washington, D.C. Reagan-National

Thu 2/26

1:44 pm-11:24 pm

2 stops11h 40m

$591

Idaho FallsWashington, D.C.

IDA - DCA

IDADCA

Idaho Falls Fanning Field

Tue 5/12

6:00 am-4:28 pm

1 stop8h 28m

Washington, D.C. Reagan-National

Tue 5/12

6:59 pm-10:45 pm

2 stops29h 46m

$607

Idaho FallsWashington, D.C.

IDA - DCA

IDADCA

Idaho Falls Fanning Field

Thu 3/26

6:00 am-9:59 pm

1 stop13h 59m

Washington, D.C. Reagan-National

Mon 3/30

5:00 pm-5:19 pm

1 stop26h 19m

$646

Idaho FallsWashington, D.C.

IDA - DCA

IDADCA

Idaho Falls Fanning Field

Sat 2/21

6:35 am-2:59 pm

1 stop6h 24m

Washington, D.C. Reagan-National

Wed 2/25

6:00 am-3:40 pm

2 stops11h 40m

$687

Idaho FallsWashington, D.C.

IDA - DCA

IDADCA

Idaho Falls Fanning Field

Mon 2/23

8:00 am-7:11 am

2 stops21h 11m

Washington, D.C. Reagan-National

Fri 2/27

9:35 am-11:36 pm

2 stops16h 01m

$699

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest 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. Reagan-National 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

Can stopping save me money on Idaho Falls to Washington, D.C. Reagan-National Airport flights?

You could potentially save up to 62% on your flight if you consider stops on a Idaho Falls to Washington, D.C. Reagan-National Airport flight.

When to book flights from Idaho Falls to Washington, D.C. Reagan-National Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Idaho Falls to Washington, D.C. Reagan-National 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. Reagan-National Airport (IDA to DCA) flight deals and tips

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

Fastest flight time

6h 24m

Direct flights

None
The fastest flight from Idaho Falls to Washington, D.C. Reagan-National Airport takes 6h 24m
There are no direct flights from Idaho Falls to Washington, D.C. Reagan-National Airport. There are no popular flight routes from Idaho Falls to Washington, D.C. Reagan-National Airport.
Search flight deals

  • How far is Idaho Falls Fanning Field to Washington, D.C. Reagan-National by plane?

    A flight from Idaho Falls Fanning Field to Washington, D.C. Reagan-National will travel around 1833.0 mi. By plane, this route typically takes 6h 24m.

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

    Prices for flights from Idaho Falls Fanning Field Airport to Washington, D.C. Reagan-National Airport are updated daily.

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Idaho Falls Fanning Field Airport to Washington, D.C. Reagan-National Airport.

  • What documentation or ID do you need to fly to Washington, D.C. Reagan-National Airport?

    The required travel and health documents for your Washington, D.C. Reagan-National 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. Reagan-National 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. Reagan-National Airport?

Best airlines flying from Idaho Falls to Washington, D.C. Reagan-National Airport

Compare and see reviews for airlines that fly from Idaho Falls to Washington, D.C. Reagan-National Airport with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $194Free CancellationRating
7.9
8,173 reviews
Search Delta flights
United AirlinesPriceFrom $394Free CancellationRating
7.4
9,257 reviews
Search United Airlines flights
American AirlinesPriceFrom $462Free CancellationRating
7.2
11,255 reviews
Search American 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
Waldorf
Woodbridge
Laurel
Colonial Beach
Tysons
Silver Spring
Towson
Fredericksburg
Gaithersburg
Rockville
Manassas
Springfield
Fairfax
Linthicum Heights
Bethesda
Glen Burnie

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?

All flight searches from Idaho Falls to Washington, D.C. on momondo can be filtered to show those which offer flexible booking policies.

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?

Yes momondo offers price alerts on flights to Washington, D.C. from Idaho Falls. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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