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Cheap flights from District of Columbia to Idaho Falls from $208

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from District of Columbia to Idaho Falls departing on 2/1. 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
0 bags

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Find the cheapest flights from District of Columbia to Idaho Falls

Cheap round-trip flights

Enter your travel dates to find the best prices.
Alaska Airlines Logo
8:00 am - 4:27 pmDCA-IDA
10h 27m1 stop
Alaska Airlines Logo
6:05 am - 4:08 pmIDA-DCA
8h 03m1 stop
$384Alaska Airlines
Find Deal
Sat, Dec 6 - Sat, Dec 13
Alaska Airlines Logo
7:34 am - 4:27 pmIAD-IDA
10h 53m1 stop
Alaska Airlines Logo
6:05 am - 4:36 pmIDA-IAD
8h 31m1 stop
$392Alaska Airlines
Find Deal
Sat, Dec 6 - Sat, Dec 13
Alaska Airlines Logo
7:34 am - 4:27 pmIAD-IDA
10h 53m1 stop
Alaska Airlines Logo
5:07 pm - 6:06 amIDA-IAD
10h 59m1 stop
$393Alaska Airlines
Find Deal
Sat, Dec 6 - Sun, Dec 14
United Airlines Logo
5:18 pm - 10:52 pmIAD-IDA
7h 34m1 stop
United Airlines Logo
2:45 pm - 11:15 pmIDA-IAD
6h 30m1 stop
$413United Airlines
Find Deal
Wed, Nov 5 - Wed, Nov 12
Hawaiian Airlines Logo
7:00 am - 3:23 pmIAD-IDA
10h 23m1 stop
Hawaiian Airlines Logo
8:00 am - 5:55 pmIDA-IAD
7h 55m1 stop
$414Hawaiian Airlines
Find Deal
Tue, Mar 10 - Wed, Mar 11
United Airlines Logo
8:15 am - 1:30 pmIAD-IDA
7h 15m1 stop
United Airlines Logo
10:51 am - 7:21 pmIDA-IAD
6h 30m1 stop
$415United Airlines
Find Deal
Fri, Jan 9 - Mon, Jan 12
American Airlines Logo
6:14 am - 1:37 pmIAD-IDA
9h 23m1 stop
American Airlines Logo
7:29 am - 11:12 pmIDA-IAD
13h 43m2 stops
$420American Airlines
Find Deal
Fri, Jan 9 - Mon, Jan 12
American Airlines Logo
9:15 am - 10:36 pmIAD-IDA
15h 21m2 stops
American Airlines Logo
7:00 am - 7:31 pmIDA-IAD
10h 31m2 stops
$425American Airlines
Find Deal
Sun, Dec 7 - Sat, Dec 13
Delta Logo
7:35 am - 6:13 pmIAD-IDA
12h 38m2 stops
Delta Logo
1:15 pm - 11:58 pmIDA-IAD
8h 43m1 stop
$434Delta
Find Deal
Wed, Nov 5 - Wed, Nov 12
Delta Logo
12:30 pm - 10:37 pmIAD-IDA
12h 07m2 stops
Delta Logo
7:06 pm - 9:10 amIDA-IAD
12h 04m2 stops
$456Delta
Find Deal
Sat, Dec 6 - Sat, Dec 13

Alaska Airlines flights from District of Columbia to Idaho Falls

Our best Alaska Airlines deals on District of Columbia to Idaho Falls flight tickets
Alaska Airlines
Dec 6
DCA8:00 amWashington, D.C. Reagan-National
10h 27m
1 stop
IDA4:27 pmIdaho Falls Fanning Field
Dec 13
IDA6:05 amIdaho Falls Fanning Field
8h 03m
1 stop
DCA4:08 pmWashington, D.C. Reagan-National
$384
Find similar
Alaska Airlines
Dec 6
IAD7:34 amWashington, D.C. Dulles Intl
10h 53m
1 stop
IDA4:27 pmIdaho Falls Fanning Field
Dec 13
IDA6:05 amIdaho Falls Fanning Field
8h 31m
1 stop
IAD4:36 pmWashington, D.C. Dulles Intl
$392
Find similar
Alaska Airlines
Dec 6
IAD7:34 amWashington, D.C. Dulles Intl
10h 53m
1 stop
IDA4:27 pmIdaho Falls Fanning Field
Dec 14
IDA5:07 pmIdaho Falls Fanning Field
10h 59m
1 stop
IAD6:06 amWashington, D.C. Dulles Intl
$393
Find similar

United Airlines flights from District of Columbia to Idaho Falls

Our best United Airlines deals on District of Columbia to Idaho Falls flight tickets
United Airlines
Nov 5
IAD5:18 pmWashington, D.C. Dulles Intl
7h 34m
1 stop
IDA10:52 pmIdaho Falls Fanning Field
Nov 12
IDA2:45 pmIdaho Falls Fanning Field
6h 30m
1 stop
IAD11:15 pmWashington, D.C. Dulles Intl
$413
Find similar
United Airlines
Jan 9
IAD8:15 amWashington, D.C. Dulles Intl
7h 15m
1 stop
IDA1:30 pmIdaho Falls Fanning Field
Jan 12
IDA10:51 amIdaho Falls Fanning Field
6h 30m
1 stop
IAD7:21 pmWashington, D.C. Dulles Intl
$415
Find similar
United Airlines
Nov 5
IAD8:25 amWashington, D.C. Dulles Intl
16h 27m
2 stops
IDA10:52 pmIdaho Falls Fanning Field
Nov 12
IDA2:45 pmIdaho Falls Fanning Field
6h 30m
1 stop
IAD11:15 pmWashington, D.C. Dulles Intl
$540
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from District of Columbia 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 October 8, 2025.
Use the filters below to find and compare flights from District of Columbia 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

Sat 12/6

8:00 am-4:27 pm

1 stop10h 27m

Idaho Falls Fanning Field

Sat 12/13

6:05 am-4:08 pm

1 stop8h 03m

$384

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Sat 12/6

7:34 am-4:27 pm

1 stop10h 53m

Idaho Falls Fanning Field

Sat 12/13

6:05 am-4:36 pm

1 stop8h 31m

$392

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Sat 12/6

7:34 am-4:27 pm

1 stop10h 53m

Idaho Falls Fanning Field

Sun 12/14

5:07 pm-6:06 am

1 stop10h 59m

$393

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Wed 11/5

5:18 pm-10:52 pm

1 stop7h 34m

Idaho Falls Fanning Field

Wed 11/12

2:45 pm-11:15 pm

1 stop6h 30m

$413

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Tue 3/10

7:00 am-3:23 pm

1 stop10h 23m

Idaho Falls Fanning Field

Wed 3/11

8:00 am-5:55 pm

1 stop7h 55m

$414

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Fri 1/9

8:15 am-1:30 pm

1 stop7h 15m

Idaho Falls Fanning Field

Mon 1/12

10:51 am-7:21 pm

1 stop6h 30m

$415

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Fri 1/9

6:14 am-1:37 pm

1 stop9h 23m

Idaho Falls Fanning Field

Mon 1/12

7:29 am-11:12 pm

2 stops13h 43m

$420

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Sun 12/7

9:15 am-10:36 pm

2 stops15h 21m

Idaho Falls Fanning Field

Sat 12/13

7:00 am-7:31 pm

2 stops10h 31m

$425

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Wed 11/5

7:35 am-6:13 pm

2 stops12h 38m

Idaho Falls Fanning Field

Wed 11/12

1:15 pm-11:58 pm

1 stop8h 43m

$434

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Sat 12/6

12:30 pm-10:37 pm

2 stops12h 07m

Idaho Falls Fanning Field

Sat 12/13

7:06 pm-9:10 am

2 stops12h 04m

$456

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 District of Columbia 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 month to fly to Idaho Falls?

If you aren’t able to travel to Idaho Falls during the month of January, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $447.

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 District of Columbia 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.

Can stopping save me money on District of Columbia to Idaho Falls flights?

You could potentially save up to 52% on your flight if you consider stops on a District of Columbia to Idaho Falls flight.

Cheap District of Columbia to Idaho Falls flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from District of Columbia to Idaho Falls

Direct flights

None
There are no direct flights from District of Columbia to Idaho Falls. There are no popular flight routes from District of Columbia to Idaho Falls.
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  • When did momondo last update prices for flights from District of Columbia to Idaho Falls Fanning Field Airport?

    Prices for flights from District of Columbia to Idaho Falls Fanning Field Airport are updated daily.

  • How many operators does momondo search for flights from District of Columbia to Idaho Falls Fanning Field Airport?

  • How old do you have to be to fly from District of Columbia to Idaho Falls Fanning Field Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from District of Columbia to Idaho Falls Fanning Field Airport.

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

    The travel and health documents you'll need for your trip to Idaho Falls Fanning Field Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Idaho Falls Fanning Field Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from District of Columbia to Idaho Falls

Compare and see reviews for airlines that fly from District of Columbia to Idaho Falls with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $334Free CancellationRating
7.2
11,042 reviews
Search American Airlines flights
DeltaPriceFrom $334Free CancellationRating
7.9
7,969 reviews
Search Delta flights
United AirlinesPriceFrom $388Free CancellationRating
7.4
8,964 reviews
Search United 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 District of Columbia to Idaho Falls?

It is quick and easy to find District of Columbia 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 District of Columbia to Idaho Falls with flexible booking policies on momondo?

momondo does allow users to show only those flights to Idaho Falls from District of Columbia which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from District of Columbia to Idaho Falls?

Once all potential District of Columbia to Idaho Falls flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from District of Columbia to Idaho Falls right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Idaho Falls, momondo offers a useful price alert feature which will track prices for flights to Idaho Falls from District of Columbia and alert you when they change.

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