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

United Airlines, Delta, and American Airlines are the most popular carriers 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 November 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.

$205 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.

2:11 pm - 9:10 pmIAD Washington, D.C. Dulles Intl-IDA Idaho Falls Fanning Field

8h 59m1 stop Denver Intl

7:00 am - 5:10 pmIDA Idaho Falls Fanning Field-IAD Washington, D.C. Dulles Intl

8h 10m1 stop Denver Intl

$409United Airlines

Fri, Jan 29 - Tue, Feb 2

4:05 pm - 9:35 pmIAD Washington, D.C. Dulles Intl-IDA Idaho Falls Fanning Field

7h 30m1 stop Denver Intl

2:33 pm - 12:27 amIDA Idaho Falls Fanning Field-IAD Washington, D.C. Dulles Intl

7h 54m1 stop Denver Intl

$409United Airlines

Sun, Feb 14 - Thu, Feb 18

7:00 am - 1:12 pmIAD Washington, D.C. Dulles Intl-IDA Idaho Falls Fanning Field

8h 12m1 stop Dallas/Fort Worth

6:26 am - 4:18 pmIDA Idaho Falls Fanning Field-IAD Washington, D.C. Dulles Intl

7h 52m1 stop Dallas/Fort Worth

$409American Airlines

Mon, Jan 11 - Sat, Jan 16

3:30 pm - 9:49 pmDCA Washington, D.C. Reagan-National-IDA Idaho Falls Fanning Field

8h 19m1 stop Dallas/Fort Worth

1:42 pm - 11:00 pmIDA Idaho Falls Fanning Field-DCA Washington, D.C. Reagan-National

7h 18m1 stop Dallas/Fort Worth

$409American Airlines

Tue, Jan 12 - Sat, Jan 16

7:15 am - 12:27 pmIAD Washington, D.C. Dulles Intl-IDA Idaho Falls Fanning Field

7h 12m1 stop Salt Lake City

1:10 pm - 11:46 pmIDA Idaho Falls Fanning Field-IAD Washington, D.C. Dulles Intl

8h 36m1 stop Salt Lake City

$409Delta

Mon, Apr 19 - Tue, Apr 20

8:15 am - 1:28 pmIAD Washington, D.C. Dulles Intl-IDA Idaho Falls Fanning Field

7h 13m1 stop Denver Intl

2:30 pm - 11:26 pmIDA Idaho Falls Fanning Field-IAD Washington, D.C. Dulles Intl

6h 56m1 stop Denver Intl

$409United Airlines

Sat, Jan 30 - Fri, Feb 5

4:15 pm - 9:10 pmDCA Washington, D.C. Reagan-National-IDA Idaho Falls Fanning Field

6h 55m1 stop Denver Intl

7:00 am - 2:55 pmIDA Idaho Falls Fanning Field-DCA Washington, D.C. Reagan-National

5h 55m1 stop Denver Intl

$409United Airlines

Sat, Jan 30 - Fri, Feb 5

7:00 am - 3:07 pmIAD Washington, D.C. Dulles Intl-IDA Idaho Falls Fanning Field

10h 07m1 stop Seattle/Tacoma Intl

8:00 am - 4:27 pmIDA Idaho Falls Fanning Field-IAD Washington, D.C. Dulles Intl

30h 27m1 stop Seattle/Tacoma Intl

$576Alaska Airlines

Fri, Dec 11 - Tue, Jan 5

7:00 am - 3:07 pmIAD Washington, D.C. Dulles Intl-IDA Idaho Falls Fanning Field

10h 07m1 stop Seattle/Tacoma Intl

3:58 pm - 4:27 pmIDA Idaho Falls Fanning Field-IAD Washington, D.C. Dulles Intl

22h 29m2 stops Portland Seattle/Tacoma Intl

$601Alaska Airlines

Fri, Dec 11 - Tue, Jan 5

5:25 pm - 2:27 pmIAD Washington, D.C. Dulles Intl-IDA Idaho Falls Fanning Field

23h 02m2 stops San Diego Portland

4:00 pm - 7:01 pmIDA Idaho Falls Fanning Field-IAD Washington, D.C. Dulles Intl

25h 01m2 stops Portland San Diego

$667Alaska Airlines

Thu, Mar 4 - Tue, Mar 9

Cheap last minute flights

Enter your travel dates to find the best prices.

7:46 am - 3:18 pmIAD Washington, D.C. Dulles Intl-IDA Idaho Falls Fanning Field

9h 32m1 stop Seattle/Tacoma Intl

6:04 am - 4:14 pmIDA Idaho Falls Fanning Field-IAD Washington, D.C. Dulles Intl

8h 10m1 stop Seattle/Tacoma Intl

$602Alaska Airlines

Tue, Nov 10 - Thu, Nov 12

8:20 am - 1:28 pmIAD Washington, D.C. Dulles Intl-IDA Idaho Falls Fanning Field

7h 08m1 stop Denver Intl

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

6h 40m1 stop Denver Intl

$621United Airlines

Sun, Nov 15 - Sat, Nov 21

12:35 pm - 9:59 pmIAD Washington, D.C. Dulles Intl-IDA Idaho Falls Fanning Field

11h 24m2 stops New York John F Kennedy Intl Salt Lake City

1:11 pm - 11:47 pmIDA Idaho Falls Fanning Field-IAD Washington, D.C. Dulles Intl

8h 36m1 stop Salt Lake City

$657Delta

Tue, Nov 10 - Thu, Nov 12

5:00 am - 1:05 pmDCA Washington, D.C. Reagan-National-IDA Idaho Falls Fanning Field

10h 05m1 stop Dallas/Fort Worth

1:43 pm - 11:59 pmIDA Idaho Falls Fanning Field-DCA Washington, D.C. Reagan-National

8h 16m1 stop Dallas/Fort Worth

$662American Airlines

Sun, Nov 15 - Sat, Nov 21

5:17 pm - 3:18 pmIAD Washington, D.C. Dulles Intl-IDA Idaho Falls Fanning Field

24h 01m1 stop Seattle/Tacoma Intl

6:04 am - 4:14 pmIDA Idaho Falls Fanning Field-IAD Washington, D.C. Dulles Intl

8h 10m1 stop Seattle/Tacoma Intl

$667Alaska Airlines

Thu, Nov 12 - Sun, Nov 15

1:44 pm - 9:43 pmDCA Washington, D.C. Reagan-National-IDA Idaho Falls Fanning Field

9h 59m1 stop Dallas/Fort Worth

6:36 am - 6:25 pmIDA Idaho Falls Fanning Field-DCA Washington, D.C. Reagan-National

9h 49m2 stops Phoenix Sky Harbor Intl Charlotte Douglas

$753American Airlines

Tue, Nov 10 - Thu, Nov 12

10:11 am - 9:59 pmIAD Washington, D.C. Dulles Intl-IDA Idaho Falls Fanning Field

13h 48m2 stops Atlanta Hartsfield-Jackson Salt Lake City

1:11 pm - 11:21 pmIDA Idaho Falls Fanning Field-IAD Washington, D.C. Dulles Intl

8h 10m2 stops Salt Lake City Minneapolis St Paul

$798Delta

Sun, Nov 15 - Sat, Nov 21

12:35 pm - 9:59 pmIAD Washington, D.C. Dulles Intl-IDA Idaho Falls Fanning Field

11h 24m2 stops New York John F Kennedy Intl Salt Lake City

6:00 am - 6:17 pmIDA Idaho Falls Fanning Field-IAD Washington, D.C. Dulles Intl

10h 17m2 stops Salt Lake City Minneapolis St Paul

$799Delta

Tue, Nov 10 - Thu, Nov 12

4:09 pm - 9:09 pmDCA Washington, D.C. Reagan-National-IDA Idaho Falls Fanning Field

7h 00m1 stop Denver Intl

7:00 am - 2:55 pmIDA Idaho Falls Fanning Field-DCA Washington, D.C. Reagan-National

5h 55m1 stop Denver Intl

$827United Airlines

Tue, Nov 10 - Thu, Nov 12

5:11 pm - 3:18 pmDCA Washington, D.C. Reagan-National-IDA Idaho Falls Fanning Field

24h 07m1 stop Seattle/Tacoma Intl

6:04 am - 8:00 pmIDA Idaho Falls Fanning Field-DCA Washington, D.C. Reagan-National

11h 56m2 stops Seattle/Tacoma Intl Los Angeles

$878Alaska Airlines

Thu, Nov 12 - Sun, Nov 15

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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

Jan 30

DCA10:59 amWashington, D.C. Reagan-National

13h 53m

2 stops

IDA10:52 pmIdaho Falls Fanning Field

Feb 5

IDA8:00 amIdaho Falls Fanning Field

11h 59m

1 stop

DCA9:59 pmWashington, D.C. Reagan-National

$563

Alaska Airlines

Dec 11

IAD7:00 amWashington, D.C. Dulles Intl

10h 07m

1 stop

IDA3:07 pmIdaho Falls Fanning Field

Jan 5

IDA8:00 amIdaho Falls Fanning Field

30h 27m

1 stop

IAD4:27 pmWashington, D.C. Dulles Intl

$576

Alaska Airlines

Jan 1

DCA8:00 amWashington, D.C. Reagan-National

9h 18m

1 stop

IDA3:18 pmIdaho Falls Fanning Field

Jan 5

IDA3:58 pmIdaho Falls Fanning Field

22h 02m

1 stop

DCA4:00 pmWashington, D.C. Reagan-National

$589

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 5

DCA6:05 amWashington, D.C. Reagan-National

11h 24m

2 stops

IDA3:29 pmIdaho Falls Fanning Field

Dec 12

IDA6:35 amIdaho Falls Fanning Field

6h 21m

1 stop

DCA2:56 pmWashington, D.C. Reagan-National

$414

United Airlines

Feb 14

DCA4:08 pmWashington, D.C. Reagan-National

7h 27m

1 stop

IDA9:35 pmIdaho Falls Fanning Field

Feb 18

IDA7:00 amIdaho Falls Fanning Field

5h 54m

1 stop

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

$420

United Airlines

Mar 4

IAD2:25 pmWashington, D.C. Dulles Intl

8h 39m

1 stop

IDA9:04 pmIdaho Falls Fanning Field

Mar 9

IDA2:35 pmIdaho Falls Fanning Field

6h 38m

1 stop

IAD11:13 pmWashington, D.C. Dulles Intl

$422

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

Washington, D.C.Idaho Falls

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

IADIDA

Washington, D.C. Dulles Intl

Fri 1/29

2:11 pm-9:10 pm

1 stop8h 59m

Idaho Falls Fanning Field

Tue 2/2

7:00 am-5:10 pm

1 stop8h 10m

$409

Washington, D.C.Idaho Falls

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

IADIDA

Washington, D.C. Dulles Intl

Sun 2/14

4:05 pm-9:35 pm

1 stop7h 30m

Idaho Falls Fanning Field

Thu 2/18

2:33 pm-12:27 am

1 stop7h 54m

$409

Washington, D.C.Idaho Falls

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

IADIDA

Washington, D.C. Dulles Intl

Mon 1/11

7:00 am-1:12 pm

1 stop8h 12m

Idaho Falls Fanning Field

Sat 1/16

6:26 am-4:18 pm

1 stop7h 52m

$409

Washington, D.C.Idaho Falls

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

DCAIDA

Washington, D.C. Reagan-National

Tue 1/12

3:30 pm-9:49 pm

1 stop8h 19m

Idaho Falls Fanning Field

Sat 1/16

1:42 pm-11:00 pm

1 stop7h 18m

$409

Washington, D.C.Idaho Falls

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

IADIDA

Washington, D.C. Dulles Intl

Mon 4/19

7:15 am-12:27 pm

1 stop7h 12m

Idaho Falls Fanning Field

Tue 4/20

1:10 pm-11:46 pm

1 stop8h 36m

$409

Washington, D.C.Idaho Falls

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

IADIDA

Washington, D.C. Dulles Intl

Sat 1/30

8:15 am-1:28 pm

1 stop7h 13m

Idaho Falls Fanning Field

Fri 2/5

2:30 pm-11:26 pm

1 stop6h 56m

$409

Quickest round-trip

Washington, D.C.Idaho Falls

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

DCAIDA

Washington, D.C. Reagan-National

Sat 1/30

4:15 pm-9:10 pm

1 stop6h 55m

Idaho Falls Fanning Field

Fri 2/5

7:00 am-2:55 pm

1 stop5h 55m

$409

Washington, D.C.Idaho Falls

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

IADIDA

Washington, D.C. Dulles Intl

Fri 12/11

7:00 am-3:07 pm

1 stop10h 07m

Idaho Falls Fanning Field

Tue 1/5

8:00 am-4:27 pm

1 stop30h 27m

$576

Washington, D.C.Idaho Falls

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

IADIDA

Washington, D.C. Dulles Intl

Fri 12/11

7:00 am-3:07 pm

1 stop10h 07m

Idaho Falls Fanning Field

Tue 1/5

3:58 pm-4:27 pm

2 stops22h 29m

$601

Washington, D.C.Idaho Falls

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

IADIDA

Washington, D.C. Dulles Intl

Thu 3/4

5:25 pm-2:27 pm

2 stops23h 02m

Idaho Falls Fanning Field

Tue 3/9

4:00 pm-7:01 pm

2 stops25h 01m

$667

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 February, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $388.

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 27% 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	$205
Fastest flight time	7h 00m
Direct flights	None

The best one-way flight to Idaho Falls from District of Columbia in the past 72 hours is $205. The best round-trip flight deal from District of Columbia to Idaho Falls found on momondo in the last 72 hours is $409.

The fastest flight from District of Columbia to Idaho Falls takes 7h 00m

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 November 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 7.3 10,477 reviews	Search United Airlines flights
Alaska Airlines	PriceFrom $433	Free Cancellation	Rating 7.9 13,159 reviews	Search Alaska Airlines flights
American Airlines	PriceFrom $448	Free Cancellation	Rating 7.0 12,226 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

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.

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Nearby airports

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Complete your 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 $205

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Alaska Airlines flights from District of Columbia to Idaho Falls

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

United Airlines flights from District of Columbia to Idaho Falls

Our best United 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

Fly to other destinations from District of Columbia

According to popular flight searches on momondo this year

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