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Cheap flights from District of Columbia to Idaho Falls from $203

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 9/4. 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

Logo
1:00 pm - 5:06 pmDCA-IDA
30h 06m1 stop
Logo
5:51 pm - 12:11 pmIDA-DCA
16h 20m1 stop
$348
Find Deal
mié., ago. 27 - dom., ago. 31
Hawaiian Airlines Logo
6:25 am - 3:38 pmIAD-IDA
11h 13m1 stop
Hawaiian Airlines Logo
6:00 am - 6:28 pmIDA-IAD
10h 28m1 stop
$394Hawaiian Airlines
Find Deal
sáb., oct. 11 - mar., oct. 21
American Airlines Logo
6:59 am - 12:25 pmDCA-IDA
7h 26m1 stop
American Airlines Logo
1:11 pm - 10:15 pmIDA-DCA
7h 04m1 stop
$395American Airlines
Find Deal
jue., oct. 9 - lun., oct. 13
American Airlines Logo
6:11 am - 12:41 pmIAD-IDA
8h 30m1 stop
American Airlines Logo
6:44 am - 4:47 pmIDA-IAD
8h 03m1 stop
$395American Airlines
Find Deal
dom., oct. 12 - mié., oct. 22
Alaska Airlines Logo
6:25 am - 3:38 pmIAD-IDA
11h 13m1 stop
Alaska Airlines Logo
6:00 am - 12:23 amIDA-IAD
16h 23m1 stop
$442Alaska Airlines
Find Deal
mar., oct. 7 - mar., oct. 14
Alaska Airlines Logo
6:09 pm - 3:20 pmIAD-IDA
23h 11m1 stop
Alaska Airlines Logo
3:57 pm - 7:33 amIDA-IAD
13h 36m1 stop
$457Alaska Airlines
Find Deal
lun., sep. 15 - mié., sep. 17
United Airlines Logo
2:39 pm - 8:54 pmIAD-IDA
8h 15m1 stop
United Airlines Logo
10:56 am - 7:13 pmIDA-IAD
6h 17m1 stop
$486United Airlines
Find Deal
mié., ago. 27 - dom., ago. 31
Delta Logo
3:40 pm - 10:25 pmDCA-IDA
8h 45m2 stops
Delta Logo
6:00 am - 4:11 pmIDA-DCA
8h 11m1 stop
$492Delta
Find Deal
sáb., sep. 20 - sáb., sep. 27
United Airlines Logo
3:48 pm - 8:54 pmIAD-IDA
7h 06m1 stop
United Airlines Logo
5:56 pm - 5:22 amIDA-IAD
9h 26m1 stop
$501United Airlines
Find Deal
sáb., sep. 20 - jue., sep. 25
Delta Logo
6:15 am - 12:33 pmIAD-IDA
8h 18m1 stop
Delta Logo
6:53 pm - 9:16 amIDA-IAD
12h 23m2 stops
$502Delta
Find Deal
mar., oct. 7 - sáb., oct. 11

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
Oct 7
IAD6:25 amWashington, D.C. Dulles Intl
11h 13m
1 stop
IDA3:38 pmIdaho Falls Fanning Field
Oct 14
IDA6:00 amIdaho Falls Fanning Field
16h 23m
1 stop
IAD12:23 amWashington, D.C. Dulles Intl
$442
Find similar
Alaska Airlines
Sep 15
IAD6:09 pmWashington, D.C. Dulles Intl
23h 11m
1 stop
IDA3:20 pmIdaho Falls Fanning Field
Sep 17
IDA3:57 pmIdaho Falls Fanning Field
13h 36m
1 stop
IAD7:33 amWashington, D.C. Dulles Intl
$457
Find similar
Alaska Airlines
Oct 10
IAD7:48 pmWashington, D.C. Dulles Intl
28h 50m
1 stop
IDA10:38 pmIdaho Falls Fanning Field
Oct 14
IDA6:00 amIdaho Falls Fanning Field
16h 23m
1 stop
IAD12:23 amWashington, D.C. Dulles Intl
$462
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
Aug 27
IAD2:39 pmWashington, D.C. Dulles Intl
8h 15m
1 stop
IDA8:54 pmIdaho Falls Fanning Field
Aug 31
IDA10:56 amIdaho Falls Fanning Field
6h 17m
1 stop
IAD7:13 pmWashington, D.C. Dulles Intl
$486
Find similar
United Airlines
Sep 20
IAD3:48 pmWashington, D.C. Dulles Intl
7h 06m
1 stop
IDA8:54 pmIdaho Falls Fanning Field
Sep 25
IDA5:56 pmIdaho Falls Fanning Field
9h 26m
1 stop
IAD5:22 amWashington, D.C. Dulles Intl
$501
Find similar
United Airlines
Sep 15
IAD5:47 pmWashington, D.C. Dulles Intl
7h 01m
1 stop
IDA10:48 pmIdaho Falls Fanning Field
Sep 17
IDA5:00 amIdaho Falls Fanning Field
6h 26m
1 stop
IAD1:26 pmWashington, D.C. Dulles Intl
$516
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 agosto 14, 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

mié. 8/27

1:00 pm-5:06 pm

1 stop30h 06m

Idaho Falls Fanning Field

dom. 8/31

5:51 pm-12:11 pm

1 stop16h 20m

$348

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

sáb. 10/11

6:25 am-3:38 pm

1 stop11h 13m

Idaho Falls Fanning Field

mar. 10/21

6:00 am-6:28 pm

1 stop10h 28m

$394

Washington, D.C.Idaho Falls

DCA - IDA

DCAIDA

Washington, D.C. Reagan-National

jue. 10/9

6:59 am-12:25 pm

1 stop7h 26m

Idaho Falls Fanning Field

lun. 10/13

1:11 pm-10:15 pm

1 stop7h 04m

$395

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

dom. 10/12

6:11 am-12:41 pm

1 stop8h 30m

Idaho Falls Fanning Field

mié. 10/22

6:44 am-4:47 pm

1 stop8h 03m

$395

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

mar. 10/7

6:25 am-3:38 pm

1 stop11h 13m

Idaho Falls Fanning Field

mar. 10/14

6:00 am-12:23 am

1 stop16h 23m

$442

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

lun. 9/15

6:09 pm-3:20 pm

1 stop23h 11m

Idaho Falls Fanning Field

mié. 9/17

3:57 pm-7:33 am

1 stop13h 36m

$457

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

mié. 8/27

2:39 pm-8:54 pm

1 stop8h 15m

Idaho Falls Fanning Field

dom. 8/31

10:56 am-7:13 pm

1 stop6h 17m

$486

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

sáb. 9/27

6:00 am-4:11 pm

1 stop8h 11m

$492

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

sáb. 9/20

3:48 pm-8:54 pm

1 stop7h 06m

Idaho Falls Fanning Field

jue. 9/25

5:56 pm-5:22 am

1 stop9h 26m

$501

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

mar. 10/7

6:15 am-12:33 pm

1 stop8h 18m

Idaho Falls Fanning Field

sáb. 10/11

6:53 pm-9:16 am

2 stops12h 23m

$502

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 February is also cheap. Prices for this month can be found on momondo for an average of $494.

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 55% 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

Best Price Found

$203

Fastest flight time

7h 01m

Direct flights

None

Airports in Idaho Falls

1 airport
The best one-way flight to Idaho Falls from District of Columbia in the past 72 hours is $203. The best round-trip flight deal from District of Columbia to Idaho Falls found on momondo in the last 72 hours is $348.
The fastest flight from District of Columbia to Idaho Falls takes 7h 01m
There are no direct flights from District of Columbia to Idaho Falls. Popular non-direct routes for this connection are Washington, D.C. Reagan-National Airport - Idaho Falls Fanning Field Airport and Washington, D.C. Dulles Intl Airport - Idaho Falls Fanning Field Airport.
There is 1 airport near Idaho Falls: Idaho Falls Fanning Field (IDA)
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
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $334Free CancellationRating
8.0
7,980 reviews
Search Delta flights
United AirlinesPriceFrom $408Free CancellationRating
7.4
8,916 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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