What is the cheapest airline that flies from District of Columbia to Idaho Falls Fanning Field?

United Airlines is the most popular carrier operating from District of Columbia to Idaho Falls Fanning Field

What airlines fly to Idaho Falls?

United Airlines, American Airlines and Delta are the top three most popular airlines that fly to Idaho Falls from District of Columbia according to our data. United Airlines is the first choice among our users, with 70% of people opting to fly with this airline when traveling to Idaho Falls. Keep in mind that there are 4 different airlines that fly to Idaho Falls on a routine basis, so you have a few additional options to choose from.

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

The number of operators available for flights from District of Columbia to Idaho Falls Fanning Field Airport is 2 as of September 2026.

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.

$260 Cheap Flights from District of Columbia to Idaho Falls in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from District of Columbia to Idaho Falls

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One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

10:00 am - 3:38 pmIAD Washington, D.C. Dulles Intl-IDA Idaho Falls Fanning Field

7h 38m1 stop Denver Intl

2:35 pm - 11:15 pmIDA Idaho Falls Fanning Field-IAD Washington, D.C. Dulles Intl

6h 40m1 stop Denver Intl

$399United Airlines

Sat, Nov 7 - Mon, Nov 9

12:27 pm - 10:10 pmDCA Washington, D.C. Reagan-National-IDA Idaho Falls Fanning Field

11h 43m2 stops Detroit Metropolitan Wayne County Salt Lake City

6:57 pm - 10:02 amIDA Idaho Falls Fanning Field-DCA Washington, D.C. Reagan-National

13h 05m2 stops Salt Lake City New York John F Kennedy Intl

$409Delta

Sat, Nov 7 - Mon, Nov 9

6:10 am - 1:28 pmIAD Washington, D.C. Dulles Intl-IDA Idaho Falls Fanning Field

9h 18m1 stop Denver Intl

2:35 pm - 11:15 pmIDA Idaho Falls Fanning Field-IAD Washington, D.C. Dulles Intl

6h 40m1 stop Denver Intl

$424United Airlines

Fri, Nov 6 - Mon, Nov 9

7:02 am - 3:20 pmIAD Washington, D.C. Dulles Intl-IDA Idaho Falls Fanning Field

10h 18m1 stop Seattle/Tacoma Intl

1:58 pm - 11:59 pmIDA Idaho Falls Fanning Field-IAD Washington, D.C. Dulles Intl

8h 01m1 stop Seattle/Tacoma Intl

$429Alaska Airlines

Tue, Oct 20 - Fri, Oct 23

12:20 pm - 10:10 pmIAD Washington, D.C. Dulles Intl-IDA Idaho Falls Fanning Field

11h 50m2 stops Detroit Metropolitan Wayne County Salt Lake City

6:57 pm - 9:09 amIDA Idaho Falls Fanning Field-IAD Washington, D.C. Dulles Intl

12h 12m2 stops Salt Lake City Atlanta Hartsfield-Jackson

$439Delta

Sat, Nov 7 - Mon, Nov 9

7:02 am - 3:20 pmIAD Washington, D.C. Dulles Intl-IDA Idaho Falls Fanning Field

10h 18m1 stop Seattle/Tacoma Intl

1:58 pm - 11:59 pmIDA Idaho Falls Fanning Field-IAD Washington, D.C. Dulles Intl

8h 01m1 stop Seattle/Tacoma Intl

$459Alaska Airlines

Tue, Oct 20 - Fri, Oct 23

5:33 pm - 3:20 pmIAD Washington, D.C. Dulles Intl-IDA Idaho Falls Fanning Field

23h 47m1 stop Seattle/Tacoma Intl

1:58 pm - 11:59 pmIDA Idaho Falls Fanning Field-IAD Washington, D.C. Dulles Intl

8h 01m1 stop Seattle/Tacoma Intl

$459Alaska Airlines

Fri, Oct 23 - Tue, Oct 27

7:12 am - 1:05 pmDCA Washington, D.C. Reagan-National-IDA Idaho Falls Fanning Field

7h 53m1 stop Dallas/Fort Worth

1:35 pm - 11:59 pmIDA Idaho Falls Fanning Field-DCA Washington, D.C. Reagan-National

8h 24m1 stop Dallas/Fort Worth

$474American Airlines

Sat, Nov 7 - Mon, Nov 9

6:35 am - 1:24 pmIAD Washington, D.C. Dulles Intl-IDA Idaho Falls Fanning Field

8h 49m1 stop Denver Intl

2:35 pm - 11:15 pmIDA Idaho Falls Fanning Field-IAD Washington, D.C. Dulles Intl

6h 40m1 stop Denver Intl

$498United Airlines

Fri, Oct 23 - Tue, Oct 27

6:35 am - 1:24 pmIAD Washington, D.C. Dulles Intl-IDA Idaho Falls Fanning Field

8h 49m1 stop Denver Intl

10:35 am - 7:26 pmIDA Idaho Falls Fanning Field-IAD Washington, D.C. Dulles Intl

6h 51m1 stop Denver Intl

$519United Airlines

Fri, Oct 16 - Sat, Oct 24

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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 7

IAD10:00 amWashington, D.C. Dulles Intl

7h 38m

1 stop

IDA3:38 pmIdaho Falls Fanning Field

Nov 9

IDA2:35 pmIdaho Falls Fanning Field

6h 40m

1 stop

IAD11:15 pmWashington, D.C. Dulles Intl

$399

United Airlines

Nov 6

IAD6:10 amWashington, D.C. Dulles Intl

9h 18m

1 stop

IDA1:28 pmIdaho Falls Fanning Field

Nov 9

IDA2:35 pmIdaho Falls Fanning Field

6h 40m

1 stop

IAD11:15 pmWashington, D.C. Dulles Intl

$424

United Airlines

Oct 23

IAD6:35 amWashington, D.C. Dulles Intl

8h 49m

1 stop

IDA1:24 pmIdaho Falls Fanning Field

Oct 27

IDA2:35 pmIdaho Falls Fanning Field

6h 40m

1 stop

IAD11:15 pmWashington, D.C. Dulles Intl

$498

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

Nov 7

DCA7:12 amWashington, D.C. Reagan-National

7h 53m

1 stop

IDA1:05 pmIdaho Falls Fanning Field

Nov 9

IDA1:35 pmIdaho Falls Fanning Field

8h 24m

1 stop

DCA11:59 pmWashington, D.C. Reagan-National

$474

American Airlines

Nov 7

DCA2:54 pmWashington, D.C. Reagan-National

10h 05m

2 stops

IDA10:59 pmIdaho Falls Fanning Field

Nov 9

IDA1:35 pmIdaho Falls Fanning Field

8h 24m

1 stop

DCA11:59 pmWashington, D.C. Reagan-National

$524

American Airlines

Oct 10

DCA3:13 pmWashington, D.C. Reagan-National

8h 29m

1 stop

IDA9:42 pmIdaho Falls Fanning Field

Oct 16

IDA1:39 pmIdaho Falls Fanning Field

8h 20m

1 stop

DCA11:59 pmWashington, D.C. Reagan-National

$554

momondo Fare Finder

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

Cheapest round-trip

Quickest round-trip

Washington, D.C.Idaho Falls

IAD Washington, D.C. Dulles Intl - IDA Idaho Falls Fanning Field

IADIDA

Washington, D.C. Dulles Intl

Sat 11/7

10:00 am-3:38 pm

1 stop7h 38m

Idaho Falls Fanning Field

Mon 11/9

2:35 pm-11:15 pm

1 stop6h 40m

$399

Washington, D.C.Idaho Falls

DCA Washington, D.C. Reagan-National - IDA Idaho Falls Fanning Field

DCAIDA

Washington, D.C. Reagan-National

Sat 11/7

12:27 pm-10:10 pm

2 stops11h 43m

Idaho Falls Fanning Field

Mon 11/9

6:57 pm-10:02 am

2 stops13h 05m

$409

Washington, D.C.Idaho Falls

IAD Washington, D.C. Dulles Intl - IDA Idaho Falls Fanning Field

IADIDA

Washington, D.C. Dulles Intl

Fri 11/6

6:10 am-1:28 pm

1 stop9h 18m

Idaho Falls Fanning Field

Mon 11/9

2:35 pm-11:15 pm

1 stop6h 40m

$424

Washington, D.C.Idaho Falls

IAD Washington, D.C. Dulles Intl - IDA Idaho Falls Fanning Field

IADIDA

Washington, D.C. Dulles Intl

Tue 10/20

7:02 am-3:20 pm

1 stop10h 18m

Idaho Falls Fanning Field

Fri 10/23

1:58 pm-11:59 pm

1 stop8h 01m

$429

Washington, D.C.Idaho Falls

IAD Washington, D.C. Dulles Intl - IDA Idaho Falls Fanning Field

IADIDA

Washington, D.C. Dulles Intl

Sat 11/7

12:20 pm-10:10 pm

2 stops11h 50m

Idaho Falls Fanning Field

Mon 11/9

6:57 pm-9:09 am

2 stops12h 12m

$439

Washington, D.C.Idaho Falls

IAD Washington, D.C. Dulles Intl - IDA Idaho Falls Fanning Field

IADIDA

Washington, D.C. Dulles Intl

Tue 10/20

7:02 am-3:20 pm

1 stop10h 18m

Idaho Falls Fanning Field

Fri 10/23

1:58 pm-11:59 pm

1 stop8h 01m

$459

Washington, D.C.Idaho Falls

IAD Washington, D.C. Dulles Intl - IDA Idaho Falls Fanning Field

IADIDA

Washington, D.C. Dulles Intl

Fri 10/23

5:33 pm-3:20 pm

1 stop23h 47m

Idaho Falls Fanning Field

Tue 10/27

1:58 pm-11:59 pm

1 stop8h 01m

$459

Washington, D.C.Idaho Falls

DCA Washington, D.C. Reagan-National - IDA Idaho Falls Fanning Field

DCAIDA

Washington, D.C. Reagan-National

Sat 11/7

7:12 am-1:05 pm

1 stop7h 53m

Idaho Falls Fanning Field

Mon 11/9

1:35 pm-11:59 pm

1 stop8h 24m

$474

Washington, D.C.Idaho Falls

IAD Washington, D.C. Dulles Intl - IDA Idaho Falls Fanning Field

IADIDA

Washington, D.C. Dulles Intl

Fri 10/23

6:35 am-1:24 pm

1 stop8h 49m

Idaho Falls Fanning Field

Tue 10/27

2:35 pm-11:15 pm

1 stop6h 40m

$498

Washington, D.C.Idaho Falls

IAD Washington, D.C. Dulles Intl - IDA Idaho Falls Fanning Field

IADIDA

Washington, D.C. Dulles Intl

Fri 10/16

6:35 am-1:24 pm

1 stop8h 49m

Idaho Falls Fanning Field

Sat 10/24

10:35 am-7:26 pm

1 stop6h 51m

$519

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

What is the cheapest month to fly to Idaho Falls?

If you aren’t able to travel to Idaho Falls during the month of December, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $0.

What is the cheapest District of Columbia to Idaho Falls Fanning Field flight route?

Fly from Washington, D.C. Dulles Intl to Idaho Falls Fanning Field for the best District of Columbia - Idaho Falls Fanning Field flight prices

What cabin class options are available on District of Columbia to Idaho Falls flights?

There is only 1 cabin class available to choose from on District of Columbia to Idaho Falls flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

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

You could potentially save up to 22% 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	$260
Fastest flight time	6h 36m
Direct flights	None

The best one-way flight to Idaho Falls from District of Columbia in the past 72 hours is $260. The best round-trip flight deal from District of Columbia to Idaho Falls found on momondo in the last 72 hours is $399.

The fastest flight from District of Columbia to Idaho Falls takes 6h 36m

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

Frequently asked questions about flying from District of Columbia to Idaho Falls

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?
The number of operators available for flights from District of Columbia to Idaho Falls Fanning Field Airport is 2 as of September 2026.
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.
What is the most popular plane model from District of Columbia to Idaho Falls?
momondo data reveals that the most frequently booked plane model on the route from District of Columbia to Idaho Falls is Airbus A321neo, representing 100.00% of all bookings.

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
United Airlines	PriceFrom $274	Free Cancellation	Rating 7.4 10,237 reviews	Search United Airlines flights
Alaska Airlines	PriceFrom $433	Free Cancellation	Rating 7.9 12,965 reviews	Search Alaska Airlines flights
American Airlines	PriceFrom $448	Free Cancellation	Rating 7.0 12,090 reviews	Search American Airlines flights

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.

An easier way to manage your Idaho Falls trip

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Airports servicing Idaho

Boise Air Term. Gowen Fld Airport

Lewiston Nez Perce Rgnl Airport

Pocatello Airport

Hailey Sun Valley-Friedman Airport

Twin Falls Joslin Airport

Cheap flights from District of Columbia to Idaho Falls from $260

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United Airlines flights from District of Columbia to Idaho Falls

Our best United Airlines deals on District of Columbia to Idaho Falls flight tickets

American Airlines flights from District of Columbia to Idaho Falls

Our best American Airlines deals on District of Columbia to Idaho Falls flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from District of Columbia to Idaho Falls that are best for you.

See travel insights to Idaho Falls from

How to get the cheapest flight ticket from District of Columbia to Idaho Falls

What is the cheapest month to fly to Idaho Falls?

What is the cheapest District of Columbia to Idaho Falls Fanning Field flight route?

What cabin class options are available on District of Columbia to Idaho Falls flights?

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

What is the cheapest airline that flies from District of Columbia to Idaho Falls Fanning Field?

What airlines fly to Idaho Falls?

Cheap District of Columbia to Idaho Falls flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from District of Columbia to Idaho Falls

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

Traveling to a place near Idaho Falls?

Why use momondo?

An easier way to manage your Idaho Falls trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing Idaho

Fly your favorite airline to Idaho Falls

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Idaho Falls

List of cabin classes available on flights landing in Idaho Falls. Availability may vary depending on flight origin and airline.

Popular cities in the United States

Popular flights according to clicks in the last 7 days on momondo

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According to popular flight searches on momondo this year

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