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Cheap flights from Washington, D.C. Reagan-National Airport to Idaho Falls from $256

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. Reagan-National Airport to Idaho Falls departing on 6/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from Washington, D.C. Reagan-National Airport to Idaho Falls

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
5:00 am - 11:32 am
DCA
-
IDA
8h 32m
1 stop
American Airlines Logo
12:12 pm - 11:58 pm
IDA
-
DCA
9h 46m
1 stop
$349American Airlines
ث, أغسطس 11 - ث, أغسطس 25
American Airlines Logo
12:31 pm - 9:22 pm
DCA
-
IDA
10h 51m
2 stops
American Airlines Logo
12:12 pm - 11:58 pm
IDA
-
DCA
9h 46m
1 stop
$415American Airlines
ث, أغسطس 11 - ث, أغسطس 25
Delta Logo
12:30 pm - 10:40 pm
DCA
-
IDA
12h 10m
2 stops
Delta Logo
6:58 pm - 9:09 am
IDA
-
DCA
12h 11m
2 stops
$424Delta
ث, أبريل 21 - ج, أبريل 24
American Airlines Logo
5:15 pm - 11:39 pm
DCA
-
IDA
8h 24m
1 stop
American Airlines Logo
7:48 am - 10:15 pm
IDA
-
DCA
12h 27m
2 stops
$469American Airlines
ث, أبريل 21 - ج, أبريل 24
American Airlines Logo
12:31 pm - 9:22 pm
DCA
-
IDA
10h 51m
2 stops
American Airlines Logo
12:12 pm - 11:59 pm
IDA
-
DCA
9h 47m
2 stops
$481American Airlines
ث, أغسطس 11 - ث, أغسطس 25
Alaska Airlines Logo
8:00 am - 4:19 pm
DCA
-
IDA
10h 19m
1 stop
Alaska Airlines Logo
6:00 am - 4:28 pm
IDA
-
DCA
8h 28m
1 stop
$484Alaska Airlines
ث, أبريل 21 - ج, أبريل 24
Alaska Airlines Logo
8:00 am - 3:29 pm
DCA
-
IDA
9h 29m
1 stop
Alaska Airlines Logo
6:00 am - 4:28 pm
IDA
-
DCA
8h 28m
1 stop
$509Alaska Airlines
ر, أبريل 29 - ر, مايو 6
Alaska Airlines Logo
8:00 am - 3:29 pm
DCA
-
IDA
9h 29m
1 stop
Alaska Airlines Logo
6:00 am - 4:28 pm
IDA
-
DCA
8h 28m
1 stop
$510Alaska Airlines
ر, أبريل 29 - ر, مايو 6
American Airlines Logo
12:31 pm - 9:22 pm
DCA
-
IDA
10h 51m
2 stops
American Airlines Logo
12:12 pm - 11:59 pm
IDA
-
DCA
9h 47m
2 stops
$515American Airlines
ث, أغسطس 11 - ث, أغسطس 25
Delta Logo
11:00 am - 10:40 pm
DCA
-
IDA
13h 40m
2 stops
Delta Logo
6:58 pm - 9:09 am
IDA
-
DCA
12h 11m
2 stops
$524Delta
ن, أبريل 20 - ج, أبريل 24

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

Our best American Airlines deals on Washington, D.C. Reagan-National Airport to Idaho Falls flight tickets
American Airlines
Aug 11
DCA5:00 amWashington, D.C. Reagan-National
8h 32m
1 stop
IDA11:32 amIdaho Falls Fanning Field
Aug 25
IDA12:12 pmIdaho Falls Fanning Field
9h 46m
1 stop
DCA11:58 pmWashington, D.C. Reagan-National
$349
American Airlines
Aug 11
DCA12:31 pmWashington, D.C. Reagan-National
10h 51m
2 stops
IDA9:22 pmIdaho Falls Fanning Field
Aug 25
IDA12:12 pmIdaho Falls Fanning Field
9h 46m
1 stop
DCA11:58 pmWashington, D.C. Reagan-National
$415
American Airlines
Apr 21
DCA5:15 pmWashington, D.C. Reagan-National
8h 24m
1 stop
IDA11:39 pmIdaho Falls Fanning Field
Apr 24
IDA7:48 amIdaho Falls Fanning Field
12h 27m
2 stops
DCA10:15 pmWashington, D.C. Reagan-National
$469

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

Our best Delta deals on Washington, D.C. Reagan-National Airport to Idaho Falls flight tickets
Delta
Apr 21
DCA12:30 pmWashington, D.C. Reagan-National
12h 10m
2 stops
IDA10:40 pmIdaho Falls Fanning Field
Apr 24
IDA6:58 pmIdaho Falls Fanning Field
12h 11m
2 stops
DCA9:09 amWashington, D.C. Reagan-National
$424
Delta
Apr 20
DCA11:00 amWashington, D.C. Reagan-National
13h 40m
2 stops
IDA10:40 pmIdaho Falls Fanning Field
Apr 24
IDA6:58 pmIdaho Falls Fanning Field
12h 11m
2 stops
DCA9:09 amWashington, D.C. Reagan-National
$524
Delta
Jul 3
DCA6:00 amWashington, D.C. Reagan-National
10h 41m
2 stops
IDA2:41 pmIdaho Falls Fanning Field
Jul 3
IDA7:07 pmIdaho Falls Fanning Field
11h 30m
2 stops
DCA8:37 amWashington, D.C. Reagan-National
$532

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Reagan-National 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 أبريل 5, 2026.
Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Idaho Falls that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Idaho Falls

DCA - IDA

DCAIDA

Washington, D.C. Reagan-National

ث 8/11

5:00 am-11:32 am

1 stop8h 32m

Idaho Falls Fanning Field

ث 8/25

12:12 pm-11:58 pm

1 stop9h 46m

$349

Washington, D.C.Idaho Falls

DCA - IDA

DCAIDA

Washington, D.C. Reagan-National

ث 8/11

12:31 pm-9:22 pm

2 stops10h 51m

Idaho Falls Fanning Field

ث 8/25

12:12 pm-11:58 pm

1 stop9h 46m

$415

Washington, D.C.Idaho Falls

DCA - IDA

DCAIDA

Washington, D.C. Reagan-National

ث 4/21

12:30 pm-10:40 pm

2 stops12h 10m

Idaho Falls Fanning Field

ج 4/24

6:58 pm-9:09 am

2 stops12h 11m

$424

Washington, D.C.Idaho Falls

DCA - IDA

DCAIDA

Washington, D.C. Reagan-National

ث 4/21

5:15 pm-11:39 pm

1 stop8h 24m

Idaho Falls Fanning Field

ج 4/24

7:48 am-10:15 pm

2 stops12h 27m

$469

Washington, D.C.Idaho Falls

DCA - IDA

DCAIDA

Washington, D.C. Reagan-National

ث 8/11

12:31 pm-9:22 pm

2 stops10h 51m

Idaho Falls Fanning Field

ث 8/25

12:12 pm-11:59 pm

2 stops9h 47m

$481

Washington, D.C.Idaho Falls

DCA - IDA

DCAIDA

Washington, D.C. Reagan-National

ث 4/21

8:00 am-4:19 pm

1 stop10h 19m

Idaho Falls Fanning Field

ج 4/24

6:00 am-4:28 pm

1 stop8h 28m

$484
Quickest round-trip

Washington, D.C.Idaho Falls

DCA - IDA

DCAIDA

Washington, D.C. Reagan-National

ر 4/29

8:00 am-3:29 pm

1 stop9h 29m

Idaho Falls Fanning Field

ر 5/6

6:00 am-4:28 pm

1 stop8h 28m

$509

Washington, D.C.Idaho Falls

DCA - IDA

DCAIDA

Washington, D.C. Reagan-National

ر 4/29

8:00 am-3:29 pm

1 stop9h 29m

Idaho Falls Fanning Field

ر 5/6

6:00 am-4:28 pm

1 stop8h 28m

$510

Washington, D.C.Idaho Falls

DCA - IDA

DCAIDA

Washington, D.C. Reagan-National

ث 8/11

12:31 pm-9:22 pm

2 stops10h 51m

Idaho Falls Fanning Field

ث 8/25

12:12 pm-11:59 pm

2 stops9h 47m

$515

Washington, D.C.Idaho Falls

DCA - IDA

DCAIDA

Washington, D.C. Reagan-National

ن 4/20

11:00 am-10:40 pm

2 stops13h 40m

Idaho Falls Fanning Field

ج 4/24

6:58 pm-9:09 am

2 stops12h 11m

$524

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. Reagan-National 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

What is the cheapest airline that flies from Washington, D.C. Reagan-National to Idaho Falls Fanning Field?

American Airlines, United Airlines, and Delta are the most popular carriers operating from Washington, D.C. Reagan-National to Idaho Falls Fanning Field

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

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

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

Fastest flight time

6h 41m

Direct flights

None
The fastest flight from Washington, D.C. Reagan-National Airport to Idaho Falls takes 6h 41m
There are no direct flights from Washington, D.C. Reagan-National Airport to Idaho Falls. There are no popular flight routes from Washington, D.C. Reagan-National Airport to Idaho Falls.
Search flight deals

Frequently asked questions about flying from Washington, D.C. Reagan-National Airport to Idaho Falls

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

    Washington, D.C. Reagan-National and Idaho Falls Fanning Field are 1833.0 mi apart from one another. Flights usually cover this in 6h 41m, depending on flying conditions and air traffic around both airports.

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

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

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

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

  • What documentation or ID do you need to fly to Idaho Falls Fanning Field Airport?

    The necessary travel and health documents for your Idaho Falls Fanning Field Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Washington, D.C. Reagan-National Airport to Idaho Falls?

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

Compare and see reviews for airlines that fly from Washington, D.C. Reagan-National Airport to Idaho Falls with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $480Free CancellationRating
7.1
11,555 reviews
Search American Airlines flights

Traveling to a place near Idaho Falls?

Book flights to Idaho Falls if you plan to visit one of these locations
Rexburg

Why use momondo?

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

It is quick and easy to find Washington, D.C. to Idaho Falls flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Idaho Falls that suits you.

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

Yes. momondo allows you to filter the results for Washington, D.C. to Idaho Falls flights to just show those with flexible booking policies.

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?

Of course. momondo tracks the price of Washington, D.C. to Idaho Falls flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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