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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 8/15. 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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Find the cheapest flights from Washington, D.C. Reagan-National Airport to Idaho Falls

Cheap round-trip flights

Hawaiian Airlines Logo
8:00 am - 3:38 pmDCA-IDA
9h 38m1 stop
Hawaiian Airlines Logo
6:00 am - 4:48 pmIDA-DCA
8h 48m1 stop
$394Hawaiian Airlines
Find Deal
mié., oct. 8 - mar., oct. 14
Delta Logo
5:21 pm - 10:25 pmDCA-IDA
7h 04m1 stop
Delta Logo
6:00 am - 4:11 pmIDA-DCA
8h 11m1 stop
$395Delta
Find Deal
mar., sep. 23 - mar., sep. 30
Delta Logo
3:40 pm - 10:25 pmDCA-IDA
8h 45m2 stops
Delta Logo
6:00 am - 4:11 pmIDA-DCA
8h 11m1 stop
$400Delta
Find Deal
sáb., sep. 20 - mar., sep. 30
Delta Logo
3:40 pm - 10:25 pmDCA-IDA
8h 45m2 stops
Delta Logo
6:51 pm - 10:05 amIDA-DCA
13h 14m2 stops
$405Delta
Find Deal
sáb., sep. 20 - mar., sep. 30
Alaska Airlines Logo
8:00 am - 10:39 pmDCA-IDA
16h 39m1 stop
Alaska Airlines Logo
6:13 am - 4:49 pmIDA-DCA
8h 36m1 stop
$453Alaska Airlines
Find Deal
mar., sep. 23 - sáb., sep. 27
American Airlines Logo
6:30 am - 12:24 pmDCA-IDA
7h 54m1 stop
American Airlines Logo
12:54 pm - 10:00 pmIDA-DCA
7h 06m1 stop
$467American Airlines
Find Deal
vie., sep. 19 - lun., sep. 22
American Airlines Logo
6:30 am - 12:24 pmDCA-IDA
7h 54m1 stop
American Airlines Logo
6:44 am - 6:39 pmIDA-DCA
9h 55m2 stops
$472American Airlines
Find Deal
vie., oct. 3 - mié., oct. 8
Alaska Airlines Logo
9:59 am - 3:38 pmDCA-IDA
31h 39m2 stops
Alaska Airlines Logo
6:00 am - 8:29 pmIDA-DCA
12h 29m2 stops
$493Alaska Airlines
Find Deal
vie., oct. 3 - mié., oct. 8
United Airlines Logo
4:24 pm - 10:48 pmDCA-IDA
8h 24m1 stop
United Airlines Logo
5:56 pm - 10:28 amIDA-DCA
14h 32m2 stops
$617United Airlines
Find Deal
mié., ago. 27 - lun., sep. 1
United Airlines Logo
5:00 pm - 10:52 pmDCA-IDA
31h 52m2 stops
United Airlines Logo
4:19 pm - 11:59 pmIDA-DCA
29h 40m2 stops
$688United Airlines
Find Deal
vie., nov. 28 - vie., dic. 12

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

Our best Alaska Airlines deals on Washington, D.C. Reagan-National Airport to Idaho Falls flight tickets
Alaska Airlines
Sep 23
DCA8:00 amWashington, D.C. Reagan-National
16h 39m
1 stop
IDA10:39 pmIdaho Falls Fanning Field
Sep 27
IDA6:13 amIdaho Falls Fanning Field
8h 36m
1 stop
DCA4:49 pmWashington, D.C. Reagan-National
$453
Find similar
Alaska Airlines
Oct 3
DCA9:59 amWashington, D.C. Reagan-National
31h 39m
2 stops
IDA3:38 pmIdaho Falls Fanning Field
Oct 8
IDA6:00 amIdaho Falls Fanning Field
12h 29m
2 stops
DCA8:29 pmWashington, D.C. Reagan-National
$493
Find similar
Alaska Airlines
Oct 8
DCA9:59 amWashington, D.C. Reagan-National
14h 39m
2 stops
IDA10:38 pmIdaho Falls Fanning Field
Oct 14
IDA6:00 amIdaho Falls Fanning Field
37h 14m
2 stops
DCA9:14 pmWashington, D.C. Reagan-National
$494
Find similar

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
Sep 19
DCA6:30 amWashington, D.C. Reagan-National
7h 54m
1 stop
IDA12:24 pmIdaho Falls Fanning Field
Sep 22
IDA12:54 pmIdaho Falls Fanning Field
7h 06m
1 stop
DCA10:00 pmWashington, D.C. Reagan-National
$467
Find similar
American Airlines
Oct 3
DCA6:30 amWashington, D.C. Reagan-National
7h 54m
1 stop
IDA12:24 pmIdaho Falls Fanning Field
Oct 8
IDA6:44 amIdaho Falls Fanning Field
9h 55m
2 stops
DCA6:39 pmWashington, D.C. Reagan-National
$472
Find similar
American Airlines
Sep 25
DCA1:33 pmWashington, D.C. Reagan-National
9h 50m
1 stop
IDA9:23 pmIdaho Falls Fanning Field
Oct 2
IDA1:35 pmIdaho Falls Fanning Field
9h 20m
1 stop
DCA12:55 amWashington, D.C. Reagan-National
$541
Find similar

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 julio 31, 2025.
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

Washington, D.C.Idaho Falls

DCA - IDA

DCAIDA

Washington, D.C. Reagan-National

mié. 10/8

8:00 am-3:38 pm

1 stop9h 38m

Idaho Falls Fanning Field

mar. 10/14

6:00 am-4:48 pm

1 stop8h 48m

$394

Washington, D.C.Idaho Falls

DCA - IDA

DCAIDA

Washington, D.C. Reagan-National

mar. 9/23

5:21 pm-10:25 pm

1 stop7h 04m

Idaho Falls Fanning Field

mar. 9/30

6:00 am-4:11 pm

1 stop8h 11m

$395

Washington, D.C.Idaho Falls

DCA - IDA

DCAIDA

Washington, D.C. Reagan-National

sáb. 9/20

3:40 pm-10:25 pm

2 stops8h 45m

Idaho Falls Fanning Field

mar. 9/30

6:00 am-4:11 pm

1 stop8h 11m

$400

Washington, D.C.Idaho Falls

DCA - IDA

DCAIDA

Washington, D.C. Reagan-National

sáb. 9/20

3:40 pm-10:25 pm

2 stops8h 45m

Idaho Falls Fanning Field

mar. 9/30

6:51 pm-10:05 am

2 stops13h 14m

$405

Washington, D.C.Idaho Falls

DCA - IDA

DCAIDA

Washington, D.C. Reagan-National

mar. 9/23

8:00 am-10:39 pm

1 stop16h 39m

Idaho Falls Fanning Field

sáb. 9/27

6:13 am-4:49 pm

1 stop8h 36m

$453

Washington, D.C.Idaho Falls

DCA - IDA

DCAIDA

Washington, D.C. Reagan-National

vie. 9/19

6:30 am-12:24 pm

1 stop7h 54m

Idaho Falls Fanning Field

lun. 9/22

12:54 pm-10:00 pm

1 stop7h 06m

$467

Washington, D.C.Idaho Falls

DCA - IDA

DCAIDA

Washington, D.C. Reagan-National

vie. 10/3

6:30 am-12:24 pm

1 stop7h 54m

Idaho Falls Fanning Field

mié. 10/8

6:44 am-6:39 pm

2 stops9h 55m

$472

Washington, D.C.Idaho Falls

DCA - IDA

DCAIDA

Washington, D.C. Reagan-National

vie. 10/3

9:59 am-3:38 pm

2 stops31h 39m

Idaho Falls Fanning Field

mié. 10/8

6:00 am-8:29 pm

2 stops12h 29m

$493

Washington, D.C.Idaho Falls

DCA - IDA

DCAIDA

Washington, D.C. Reagan-National

mié. 8/27

4:24 pm-10:48 pm

1 stop8h 24m

Idaho Falls Fanning Field

lun. 9/1

5:56 pm-10:28 am

2 stops14h 32m

$617

Washington, D.C.Idaho Falls

DCA - IDA

DCAIDA

Washington, D.C. Reagan-National

vie. 11/28

5:00 pm-10:52 pm

2 stops31h 52m

Idaho Falls Fanning Field

vie. 12/12

4:19 pm-11:59 pm

2 stops29h 40m

$688

Flights are sorted by cheapest round-trip flights 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 day to depart on your flight to Idaho Falls?

Our data shows that Saturday is the least expensive day to fly to Idaho Falls. Tickets to fly out on this day can be as low as $562. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Idaho Falls on Sunday is $870.

What is the cheapest time of day to depart on your flight to Idaho Falls?

Our most recent data shows that the best time of day to fly to Idaho Falls is in the morning. Flights from Washington, D.C. Reagan-National Airport to Idaho Falls during this time can be as low as $716. Try not to purchase tickets in the afternoon because they tend to be around $758. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

Best Price Found

$256

Fastest flight time

7h 04m

Direct flights

None

Airports in Idaho Falls

1 airport
The best one-way flight to Idaho Falls from Washington, D.C. Reagan-National Airport in the past 72 hours is $256. The best round-trip flight deal from Washington, D.C. Reagan-National Airport to Idaho Falls found on momondo in the last 72 hours is $394.
The fastest flight from Washington, D.C. Reagan-National Airport to Idaho Falls takes 7h 04m
There are no direct flights from Washington, D.C. Reagan-National Airport to Idaho Falls. Popular non-direct route for this connection is Washington, D.C. Reagan-National Airport - Idaho Falls Fanning Field Airport.
There is 1 airport near Idaho Falls: Idaho Falls Fanning Field (IDA)
Search flight deals

  • 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 7h 04m, 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
7.2
10,000 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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