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Cheap flights from District of Columbia to Idaho Falls from $195

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 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.
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
6:04 pm - 10:59 pmIAD-IDA
30h 55m1 stop
Alaska Airlines Logo
6:58 pm - 4:26 pmIDA-IAD
19h 28m1 stop
$384Alaska Airlines
Find Deal
Thu, Jan 8 - Mon, Jan 12
Alaska Airlines Logo
8:00 am - 11:36 pmDCA-IDA
17h 36m1 stop
Alaska Airlines Logo
8:00 am - 9:59 pmIDA-DCA
11h 59m1 stop
$415Alaska Airlines
Find Deal
Wed, Feb 18 - Fri, Feb 27
Alaska Airlines Logo
7:05 am - 4:23 pmIAD-IDA
11h 18m1 stop
Alaska Airlines Logo
5:00 pm - 5:40 amIDA-IAD
10h 40m1 stop
$415Alaska Airlines
Find Deal
Wed, Feb 18 - Fri, Feb 27
Alaska Airlines Logo
6:04 pm - 6:18 pmIAD-IDA
26h 14m1 stop
Alaska Airlines Logo
6:58 pm - 4:26 pmIDA-IAD
19h 28m1 stop
$423Alaska Airlines
Find Deal
Thu, Jan 8 - Mon, Jan 12
American Airlines Logo
11:24 am - 11:07 pmIAD-IDA
13h 43m2 stops
American Airlines Logo
2:02 pm - 10:51 pmIDA-IAD
6h 49m1 stop
$439American Airlines
Find Deal
Wed, Feb 18 - Fri, Feb 27
Delta Logo
12:09 pm - 10:19 pmIAD-IDA
12h 10m2 stops
Delta Logo
6:35 pm - 11:48 pmIDA-IAD
27h 13m1 stop
$441Delta
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Thu, Jan 8 - Mon, Jan 12
Hawaiian Airlines Logo
8:00 am - 6:18 pmDCA-IDA
12h 18m1 stop
Hawaiian Airlines Logo
9:00 am - 9:59 pmIDA-DCA
10h 59m1 stop
$442Hawaiian Airlines
Find Deal
Wed, Jan 21 - Sun, Jan 25
Delta Logo
12:09 pm - 10:19 pmIAD-IDA
12h 10m2 stops
Delta Logo
6:35 pm - 11:06 pmIDA-IAD
26h 31m2 stops
$446Delta
Find Deal
Thu, Jan 8 - Mon, Jan 12
Hawaiian Airlines Logo
8:00 am - 6:18 pmDCA-IDA
12h 18m1 stop
Hawaiian Airlines Logo
9:00 am - 9:59 pmIDA-DCA
10h 59m1 stop
$462Hawaiian Airlines
Find Deal
Wed, Jan 21 - Sun, Jan 25
American Airlines Logo
1:32 pm - 11:07 pmDCA-IDA
11h 35m2 stops
American Airlines Logo
2:02 pm - 11:00 pmIDA-DCA
6h 58m1 stop
$476American Airlines
Find Deal
Wed, Feb 18 - Fri, Feb 27

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
Dec 20
IAD10:10 pmWashington, D.C. Dulles Intl
26h 49m
1 stop
IDA10:59 pmIdaho Falls Fanning Field
Dec 30
IDA5:00 amIdaho Falls Fanning Field
6h 16m
1 stop
IAD1:16 pmWashington, D.C. Dulles Intl
$631
Find similar
United Airlines
Dec 20
IAD10:19 pmWashington, D.C. Dulles Intl
19h 03m
2 stops
IDA3:22 pmIdaho Falls Fanning Field
Dec 30
IDA5:00 amIdaho Falls Fanning Field
6h 16m
1 stop
IAD1:16 pmWashington, D.C. Dulles Intl
$644
Find similar
United Airlines
Mar 26
IAD8:20 amWashington, D.C. Dulles Intl
7h 10m
1 stop
IDA1:30 pmIdaho Falls Fanning Field
Mar 29
IDA2:35 pmIdaho Falls Fanning Field
6h 59m
1 stop
IAD11:34 pmWashington, D.C. Dulles Intl
$658
Find similar

American Airlines flights from District of Columbia to Idaho Falls

Our best American Airlines deals on District of Columbia to Idaho Falls flight tickets
American Airlines
Feb 18
IAD11:24 amWashington, D.C. Dulles Intl
13h 43m
2 stops
IDA11:07 pmIdaho Falls Fanning Field
Feb 27
IDA2:02 pmIdaho Falls Fanning Field
6h 49m
1 stop
IAD10:51 pmWashington, D.C. Dulles Intl
$439
Find similar
American Airlines
Feb 18
DCA1:32 pmWashington, D.C. Reagan-National
11h 35m
2 stops
IDA11:07 pmIdaho Falls Fanning Field
Feb 27
IDA2:02 pmIdaho Falls Fanning Field
6h 58m
1 stop
DCA11:00 pmWashington, D.C. Reagan-National
$476
Find similar
American Airlines
Dec 7
IAD6:00 amWashington, D.C. Dulles Intl
9h 27m
1 stop
IDA1:27 pmIdaho Falls Fanning Field
Dec 11
IDA1:58 pmIdaho Falls Fanning Field
6h 45m
1 stop
IAD10:43 pmWashington, D.C. Dulles Intl
$481
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 November 23, 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

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Thu 1/8

6:04 pm-10:59 pm

1 stop30h 55m

Idaho Falls Fanning Field

Mon 1/12

6:58 pm-4:26 pm

1 stop19h 28m

$384

Washington, D.C.Idaho Falls

DCA - IDA

DCAIDA

Washington, D.C. Reagan-National

Wed 2/18

8:00 am-11:36 pm

1 stop17h 36m

Idaho Falls Fanning Field

Fri 2/27

8:00 am-9:59 pm

1 stop11h 59m

$415

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Wed 2/18

7:05 am-4:23 pm

1 stop11h 18m

Idaho Falls Fanning Field

Fri 2/27

5:00 pm-5:40 am

1 stop10h 40m

$415

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Thu 1/8

6:04 pm-6:18 pm

1 stop26h 14m

Idaho Falls Fanning Field

Mon 1/12

6:58 pm-4:26 pm

1 stop19h 28m

$423

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Wed 2/18

11:24 am-11:07 pm

2 stops13h 43m

Idaho Falls Fanning Field

Fri 2/27

2:02 pm-10:51 pm

1 stop6h 49m

$439

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Thu 1/8

12:09 pm-10:19 pm

2 stops12h 10m

Idaho Falls Fanning Field

Mon 1/12

6:35 pm-11:48 pm

1 stop27h 13m

$441

Washington, D.C.Idaho Falls

DCA - IDA

DCAIDA

Washington, D.C. Reagan-National

Wed 1/21

8:00 am-6:18 pm

1 stop12h 18m

Idaho Falls Fanning Field

Sun 1/25

9:00 am-9:59 pm

1 stop10h 59m

$442

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Thu 1/8

12:09 pm-10:19 pm

2 stops12h 10m

Idaho Falls Fanning Field

Mon 1/12

6:35 pm-11:06 pm

2 stops26h 31m

$446

Washington, D.C.Idaho Falls

DCA - IDA

DCAIDA

Washington, D.C. Reagan-National

Wed 1/21

8:00 am-6:18 pm

1 stop12h 18m

Idaho Falls Fanning Field

Sun 1/25

9:00 am-9:59 pm

1 stop10h 59m

$462

Washington, D.C.Idaho Falls

DCA - IDA

DCAIDA

Washington, D.C. Reagan-National

Wed 2/18

1:32 pm-11:07 pm

2 stops11h 35m

Idaho Falls Fanning Field

Fri 2/27

2:02 pm-11:00 pm

1 stop6h 58m

$476

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 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 42% 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.
Search flight deals

  • 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
11,046 reviews
Search American Airlines flights
DeltaPriceFrom $334Free CancellationRating
7.9
7,997 reviews
Search Delta flights
United AirlinesPriceFrom $408Free CancellationRating
7.4
9,037 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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