How long is the flight from Idaho Falls to Washington, D.C.?

Delta, United Airlines, and Alaska Airlines can get you from Idaho Falls to Washington, D.C. in just under 6h 40m. Your travel time can differ by up to 1h 37m. The distance between Idaho Falls and Washington, D.C. is about 1811 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

What is the cheapest airline to fly from Idaho Falls to Washington, D.C. round-trip?

American Airlines, at $358, was found to be the cheapest airline from Idaho Falls to Washington, D.C... American Airlines is priced at 39% lower than the current average price of a flight leaving 3 months from now.

In terms of precipitation, rainfall in Washington, D.C. ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. when rainfall is around 2.6 in.

If weather is an important factor for your trip to Washington, D.C., use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

What are the most popular routes from Idaho Falls to Washington, D.C.?

When deciding which route to take from Idaho Falls to Washington, D.C. consider Idaho Falls Fanning Field - Washington, D.C. Dulles Intl, Idaho Falls Fanning Field - Baltimore/Washington or Idaho Falls Fanning Field - Washington, D.C. Reagan-National as they are the most popular.

What is the cheapest time of day to fly from IDA to WAS?

When flying from Idaho Falls to Washington, D.C., the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Most accurate provider : When it comes to deals on Idaho Falls-Washington, D.C. flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Idaho Falls-Washington, D.C. flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Idaho Falls-Washington, D.C. flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Idaho Falls-Washington, D.C. flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Idaho Falls-Washington, D.C. flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

What airport do you fly from for flights from Idaho Falls to Washington, D.C.?

Located just 3.8 mi from the city center, Idaho Falls Fanning Field is the airport most travelers will use when flying to Washington, D.C. from Idaho Falls. Booking flights from Fanning Field (IDA) to Washington, D.C. should be relatively easy as there are 0 daily outbound flights to Washington, D.C. from 2 different airlines.

Can I find deals for flights from Idaho Falls to Washington, D.C. that include hotel bookings?

Yes. In addition to deals on Idaho Falls to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Idaho Falls to Washington, D.C.?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Idaho Falls to Washington, D.C..

Can I find deals for business class flights from Idaho Falls to Washington, D.C.?

Yes. Cheapflights offers flight deals from Idaho Falls to Washington, D.C. by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$165+ Cheap Flights from Idaho Falls to Washington, D.C.

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Cheap flight deals from Idaho Falls to Washington, D.C.

Cheapest

Best

Last-minute

One-way

Cheapest flights from Idaho Falls to Washington, D.C.
Explore the most affordable flight options available from Idaho Falls to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 19, 2026.

Wed 10/281:39 pm -

1 stop7h 44m

Wed 11/47:14 am -

1 stop7h 51m

Deal found 9/16

$399

Wed 10/281:50 pm -

1 stop8h 09m

Wed 11/47:12 am -

1 stop7h 53m

Deal found 9/16

$399

Wed 10/281:05 pm -

2 stops9h 37m

Wed 11/46:13 am -

1 stop8h 09m

Deal found 9/16

$404

Fri 10/1610:49 pm -

1 stop29h 31m

Mon 10/196:00 am -

1 stop10h 39m

Deal found 9/17

$412

Mon 11/162:35 pm -

1 stop6h 40m

Thu 11/196:10 am -

1 stop9h 18m

Deal found 9/18

$423

Thu 11/58:00 am -

1 stop8h 19m

Sat 11/77:18 am -

1 stop7h 47m

Deal found 9/17

$450

Tue 11/106:57 pm -

2 stops13h 05m

Mon 11/162:59 pm -

2 stops9h 00m

Deal found 9/16

$454

Thu 12/38:00 am -

1 stop9h 17m

Tue 12/86:45 am -

1 stop8h 20m

Deal found 9/16

$458

Fri 10/26:57 pm -

1 stop9h 21m

Tue 10/610:21 am -

2 stops13h 49m

Deal found 9/17

$463

Fri 10/22:01 pm -

1 stop7h 58m

Tue 10/67:02 am -

1 stop10h 18m

Deal found 9/17

$469

Tue 9/292:08 pm -

1 stop7h 51m

Sat 10/37:32 am -

1 stop8h 05m

Deal found 9/16

$469

Sat 12/56:00 am -

1 stop8h 15m

Tue 12/87:00 am -

1 stop10h 07m

Deal found 9/15

$471

Best flights from Idaho Falls to Washington, D.C.
Discover carefully curated flight deals from Idaho Falls to Washington, D.C. that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 19, 2026.

Mon 2/86:00 am -

1 stop8h 17m

Mon 2/155:00 pm -

1 stop7h 19m

Deal found 9/14

$399

Mon 11/162:35 pm -

1 stop6h 40m

Thu 11/196:10 am -

1 stop9h 18m

Deal found 9/18

$423

Sat 12/56:00 am -

1 stop8h 15m

Tue 12/87:00 am -

1 stop10h 07m

Deal found 9/15

$471

Thu 11/51:35 pm -

1 stop8h 24m

Sat 11/75:00 am -

1 stop10h 05m

Deal found 9/17

$479

Wed 10/281:05 pm -

2 stops9h 37m

Wed 11/46:13 am -

1 stop8h 09m

Deal found 9/16

$404

Thu 3/46:00 am -

2 stops11h 19m

Sun 3/79:00 am -

2 stops11h 14m

Deal found 9/15

$439

Sat 12/510:40 am -

1 stop6h 50m

Tue 12/88:22 am -

1 stop7h 15m

Deal found 9/16

$499

Wed 10/146:09 am -

1 stop8h 21m

Mon 10/199:38 am -

1 stop15h 21m

Deal found 9/17

$539

Mon 11/161:35 pm -

1 stop7h 18m

Thu 11/196:33 am -

1 stop8h 40m

Deal found 9/18

$539

Tue 11/102:35 pm -

1 stop6h 33m

Mon 11/166:10 am -

2 stops11h 28m

Deal found 9/16

$519

Fri 10/21:05 pm -

1 stop8h 38m

Tue 10/610:14 am -

2 stops13h 56m

Deal found 9/17

$484

Sat 10/241:58 pm -

2 stops19h 03m

Wed 10/287:02 am -

1 stop10h 18m

Deal found 9/16

$596

Tue 12/16:59 pm -

2 stops12h 17m

Thu 12/37:00 am -

1 stop7h 17m

Deal found 9/16

$529

Sat 12/56:45 am -

1 stop6h 11m

Tue 12/84:13 pm -

1 stop6h 46m

Deal found 9/15

$589

Wed 10/286:00 am -

2 stops10h 37m

Wed 11/46:10 am -

2 stops8h 12m

Deal found 9/16

$534

Sat 10/36:09 am -

1 stop8h 16m

Wed 10/78:00 am -

1 stop9h 20m

Deal found 9/18

$674

Sat 10/245:51 pm -

2 stops15h 45m

Wed 10/286:10 am -

2 stops11h 28m

Deal found 9/16

$624

Mon 11/166:57 pm -

2 stops12h 20m

Thu 11/197:00 am -

1 stop7h 15m

Deal found 9/18

$550

Thu 11/52:35 pm -

1 stop6h 33m

Sat 11/76:10 am -

2 stops11h 28m

Deal found 9/17

$633

Sat 12/56:00 am -

1 stop13h 59m

Tue 12/86:59 pm -

2 stops20h 18m

Deal found 9/18

$720

Thu 10/16:00 am -

1 stop8h 49m

Mon 10/511:10 am -

2 stops13h 12m

Deal found 9/16

$579

Last-minute flights from Idaho Falls to Washington, D.C.
Discover last-minute flight deals from Idaho Falls to Washington, D.C.. Data last updated September 19, 2026 and is based on user searches.

Tue 9/292:08 pm -

1 stop7h 51m

Sat 10/37:32 am -

1 stop8h 05m

Deal found 9/16

$469

Thu 10/16:00 am -

1 stop8h 49m

Mon 10/511:10 am -

2 stops13h 12m

Deal found 9/19

$519

Fri 10/26:57 pm -

1 stop9h 21m

Tue 10/610:21 am -

2 stops13h 49m

Deal found 9/17

$463

Fri 10/22:01 pm -

1 stop7h 58m

Tue 10/67:02 am -

1 stop10h 18m

Deal found 9/17

$469

Fri 10/21:05 pm -

1 stop8h 38m

Tue 10/610:14 am -

2 stops13h 56m

Deal found 9/17

$484

Fri 10/26:57 pm -

2 stops12h 15m

Tue 10/610:10 am -

2 stops14h 00m

Deal found 9/17

$489

Wed 10/146:09 am -

1 stop8h 21m

Mon 10/199:38 am -

1 stop15h 21m

Deal found 9/17

$539

Fri 10/1610:49 pm -

1 stop29h 31m

Mon 10/196:00 am -

1 stop10h 39m

Deal found 9/17

$412

Wed 10/281:39 pm -

1 stop7h 44m

Wed 11/47:14 am -

1 stop7h 51m

Deal found 9/16

$399

Wed 10/281:50 pm -

1 stop8h 09m

Wed 11/47:12 am -

1 stop7h 53m

Deal found 9/16

$399

Wed 10/281:05 pm -

2 stops9h 37m

Wed 11/46:13 am -

1 stop8h 09m

Deal found 9/16

$404

Wed 10/286:00 am -

2 stops10h 37m

Wed 11/46:10 am -

2 stops8h 12m

Deal found 9/16

$534

One-way flights from Idaho Falls to Washington, D.C.
Search for one-way flight options from Idaho Falls to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated September 19, 2026.

Mon 10/57:42 pm -

2 stops13h 58m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/15

$165

Fri 10/1610:49 pm -

1 stop29h 31m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/16

$178

Mon 10/57:42 pm -

2 stops17h 52m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/15

$181

Mon 10/57:42 pm -

2 stops24h 17m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/15

$185

Fri 10/166:56 pm -

1 stop8h 49m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/16

$190

Fri 10/1610:49 pm -

2 stops16h 07m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/16

$194

Tue 11/101:11 pm -

2 stops9h 47m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/16

$195

Tue 11/102:35 pm -

1 stop6h 40m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/16

$200

Wed 10/281:50 pm -

1 stop8h 09m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/15

$200

Tue 11/101:11 pm -

2 stops9h 30m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/16

$205

Thu 10/296:56 pm -

2 stops12h 14m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/15

$205

Sat 12/196:57 pm -

1 stop8h 38m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/18

$210

Find flight deals from Idaho Falls to Washington, D.C.

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$399 (American Airlines)
One-way from	$165 (Kiwi.com)
Popular in	December
Cheapest in	February

Provider with most accurate pricing for Idaho Falls Fanning Field-Washington, D.C. (WAS) flight deals.

Search Deals

Provider most trusted by Cheapflights users for Idaho Falls Fanning Field-Washington, D.C. (WAS) flights.

Search Deals

From Idaho Falls Fanning Field to Washington, D.C. (WAS)

Search Deals

One-way flight from Idaho Falls Fanning Field to Washington, D.C. (WAS)

Search Deals

Highest demand for flights based on searches. 24% potential increase in price ($190 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 5% potential price decrease ($28 potential savings vs. average RT price).

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Idaho Falls to Washington, D.C. that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Idaho FallsBaltimore

IDA Idaho Falls Fanning Field - BWI Baltimore/Washington

IDABWI

Idaho Falls Fanning Field

Fri 10/16

6:56 pm-5:45 am

1 stop8h 49m

Baltimore/Washington

Wed 12/31

12:00 am-10:00 pm

Nonstop0h 00m

$190

Idaho FallsBaltimore

IDA Idaho Falls Fanning Field - BWI Baltimore/Washington

IDABWI

Idaho Falls Fanning Field

Tue 11/10

6:57 pm-5:40 am

1 stop8h 43m

Baltimore/Washington

Wed 12/31

12:00 am-10:00 pm

Nonstop0h 00m

$190

Idaho FallsWashington, D.C.

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

IDADCA

Idaho Falls Fanning Field

Fri 10/16

10:49 pm-4:56 pm

2 stops16h 07m

Washington, D.C. Reagan-National

Wed 12/31

12:00 am-10:00 pm

Nonstop0h 00m

$194

Quickest round-trip

Idaho FallsWashington, D.C.

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

IDAIAD

Idaho Falls Fanning Field

Tue 11/10

2:35 pm-11:15 pm

1 stop6h 40m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-10:00 pm

Nonstop0h 00m

$200

Idaho FallsWashington, D.C.

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

IDADCA

Idaho Falls Fanning Field

Thu 10/29

1:50 pm-11:59 pm

1 stop8h 09m

Washington, D.C. Reagan-National

Wed 12/31

12:00 am-10:00 pm

Nonstop0h 00m

$200

Idaho FallsWashington, D.C.

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

IDADCA

Idaho Falls Fanning Field

Wed 10/28

1:50 pm-11:59 pm

1 stop8h 09m

Washington, D.C. Reagan-National

Wed 12/31

12:00 am-10:00 pm

Nonstop0h 00m

$200

Idaho FallsBaltimore

IDA Idaho Falls Fanning Field - BWI Baltimore/Washington

IDABWI

Idaho Falls Fanning Field

Mon 10/5

7:42 pm-9:00 pm

3 stops23h 18m

Baltimore/Washington

Wed 12/31

12:00 am-10:00 pm

Nonstop0h 00m

$202

Idaho FallsWashington, D.C.

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

IDADCA

Idaho Falls Fanning Field

Tue 11/10

6:00 am-5:20 pm

2 stops9h 20m

Washington, D.C. Reagan-National

Wed 12/31

12:00 am-10:00 pm

Nonstop0h 00m

$205

Idaho FallsWashington, D.C.

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

IDADCA

Idaho Falls Fanning Field

Thu 10/29

6:56 pm-9:10 am

2 stops12h 14m

Washington, D.C. Reagan-National

Wed 12/31

12:00 am-10:00 pm

Nonstop0h 00m

$205

Idaho FallsWashington, D.C.

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

IDAIAD

Idaho Falls Fanning Field

Mon 10/5

7:42 pm-8:09 pm

3 stops22h 27m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-10:00 pm

Nonstop0h 00m

$216

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 51 resultsSorted by cheapest first

...

Compare providers for flights from Idaho Falls to Washington, D.C.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Idaho Falls to Washington, D.C. in September.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Idaho Falls-Washington, D.C. flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Idaho Falls-Washington, D.C. flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Idaho Falls-Washington, D.C. flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Idaho Falls-Washington, D.C. flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Idaho Falls-Washington, D.C. flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Idaho Falls to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Idaho Falls with our price prediction graph.

IDA-WAS

IDA-DCA

IDA-IAD

IDA-BWI

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Idaho Falls to Washington, D.C.

IDA-WAS

IDA-DCA

IDA-IAD

IDA-BWI

No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Washington, D.C.

Get a feel of what it's like to fly with Delta and United Airlines from Idaho Falls to Washington, D.C. by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

7.8

Good

8,589 reviews

Reviews

1 / 20

4.0

Okay

Jennifer,Sep 2026

ORD - LGA

The flight crew was 30 minutes late to an am flight and then that caused a delay

Delta

7.8

Good

8,589 reviews

Delta

7.8

Good

8,589 reviews

Reviews

1 / 20

4.0

Okay

Jennifer,Sep 2026

ORD - LGA

The flight crew was 30 minutes late to an am flight and then that caused a delay

United Airlines

7.4

Good

10,232 reviews

Delta

7.8

Good

8,589 reviews

Reviews

1 / 20

4.0

Okay

Jennifer,Sep 2026

ORD - LGA

The flight crew was 30 minutes late to an am flight and then that caused a delay

Related info for your journey

What airport do you fly from for flights from Idaho Falls to Washington, D.C.?
Located just 3.8 mi from the city center, Idaho Falls Fanning Field is the airport most travelers will use when flying to Washington, D.C. from Idaho Falls. Booking flights from Fanning Field (IDA) to Washington, D.C. should be relatively easy as there are 0 daily outbound flights to Washington, D.C. from 2 different airlines.
How long is the flight from Idaho Falls to Washington, D.C.?
Delta, United Airlines, and Alaska Airlines can get you from Idaho Falls to Washington, D.C. in just under 6h 40m. Your travel time can differ by up to 1h 37m. The distance between Idaho Falls and Washington, D.C. is about 1811 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.
What is the cheapest airline to fly from Idaho Falls to Washington, D.C. round-trip?
American Airlines, at $358, was found to be the cheapest airline from Idaho Falls to Washington, D.C... American Airlines is priced at 39% lower than the current average price of a flight leaving 3 months from now.
What are the most popular routes from Idaho Falls to Washington, D.C.?
When deciding which route to take from Idaho Falls to Washington, D.C. consider Idaho Falls Fanning Field - Washington, D.C. Dulles Intl, Idaho Falls Fanning Field - Baltimore/Washington or Idaho Falls Fanning Field - Washington, D.C. Reagan-National as they are the most popular.
Can I find deals for flights from Idaho Falls to Washington, D.C. that include hotel bookings?
Yes. In addition to deals on Idaho Falls to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Idaho Falls to Washington, D.C.?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Idaho Falls to Washington, D.C..
Can I find deals for business class flights from Idaho Falls to Washington, D.C.?
Yes. Cheapflights offers flight deals from Idaho Falls to Washington, D.C. by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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Washington, D.C. flight routes

Alternative routes for Idaho Falls to Washington, D.C.

Boise to Dulles Intl flights

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Spokane to Dulles Intl flights

Spokane to Reagan-National flights

Jackson to Dulles Intl flights

Lewiston to Reagan-National flights

Lewiston to Dulles Intl flights

Top 2 airlines flying from Idaho Falls to Washington, D.C.

Airline	Cheapest	Average	Flexibility	On-time
American Airlines	Cheapest$358	Average$865	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$469	Average$550	FlexibilityNo cancel fee	On-time69%

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$165+ Cheap flights from Idaho Falls (IDA) to Washington, D.C. (WAS)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/5. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheap flight deals from Idaho Falls to Washington, D.C.

Cheapest flights from Idaho Falls to Washington, D.C.Explore the most affordable flight options available from Idaho Falls to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 19, 2026.

Explore the most affordable flight options available from Idaho Falls to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 19, 2026.

Best flights from Idaho Falls to Washington, D.C.Discover carefully curated flight deals from Idaho Falls to Washington, D.C. that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 19, 2026.

Discover carefully curated flight deals from Idaho Falls to Washington, D.C. that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 19, 2026.

Last-minute flights from Idaho Falls to Washington, D.C.Discover last-minute flight deals from Idaho Falls to Washington, D.C.. Data last updated September 19, 2026 and is based on user searches.

Discover last-minute flight deals from Idaho Falls to Washington, D.C.. Data last updated September 19, 2026 and is based on user searches.

One-way flights from Idaho Falls to Washington, D.C.Search for one-way flight options from Idaho Falls to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated September 19, 2026.

Search for one-way flight options from Idaho Falls to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated September 19, 2026.

Find flight deals from Idaho Falls to Washington, D.C.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Cheapflights Fare Finder

Use the filters below to find and compare flights from Idaho Falls to Washington, D.C. that are best for you.

Compare providers for flights from Idaho Falls to Washington, D.C.

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Idaho Falls to Washington, D.C. in September.

Best time to book a flight from Idaho Falls to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Idaho Falls with our price prediction graph.

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Reviews of airlines servicing Washington, D.C.

Get a feel of what it's like to fly with Delta and United Airlines from Idaho Falls to Washington, D.C. by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

What airport do you fly from for flights from Idaho Falls to Washington, D.C.?

How long is the flight from Idaho Falls to Washington, D.C.?

What is the cheapest airline to fly from Idaho Falls to Washington, D.C. round-trip?

What are the most popular routes from Idaho Falls to Washington, D.C.?

Can I find deals for flights from Idaho Falls to Washington, D.C. that include hotel bookings?

How can I find direct flights from Idaho Falls to Washington, D.C.?

Can I find deals for business class flights from Idaho Falls to Washington, D.C.?

Traveling to a place near Washington, D.C.?

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Alternative routes for Idaho Falls to Washington, D.C.

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Complete your trip

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Search flights from Idaho Falls to Washington, D.C. by cabin class

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Idaho Falls and Washington, D.C. flights

Browse other Idaho Falls and Washington, D.C. flight options. Last updated on September 19, 2026.

Other flights from Idaho Falls

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Popular flight searches

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Idaho Falls to Washington, D.C. flights

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Other flights to Washington, D.C.

Explore flights to Washington, D.C. departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 19, 2026.

Top 2 airlines flying from Idaho Falls to Washington, D.C.

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Cheapest flights from Idaho Falls to Washington, D.C.
Explore the most affordable flight options available from Idaho Falls to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 19, 2026.

Best flights from Idaho Falls to Washington, D.C.
Discover carefully curated flight deals from Idaho Falls to Washington, D.C. that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 19, 2026.

Last-minute flights from Idaho Falls to Washington, D.C.
Discover last-minute flight deals from Idaho Falls to Washington, D.C.. Data last updated September 19, 2026 and is based on user searches.

One-way flights from Idaho Falls to Washington, D.C.
Search for one-way flight options from Idaho Falls to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated September 19, 2026.