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

American Airlines, Alaska Airlines, and Delta can get you from Idaho Falls to Washington, D.C. in just under 7h 04m. Your travel time can differ by up to 17h 22m. The distance between Idaho Falls and Washington, D.C. is about 1835 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

What are the cheapest airlines flying from Idaho Falls to Washington, D.C. round-trip?

American Airlines, at $369, was found to be the cheapest airline from Idaho Falls to Washington, D.C.. An alternate airline flying to your destination would be United Airlines.

What is the cheapest day to fly from Idaho Falls to Washington, D.C.?

Travelers seeking maximum savings on their Idaho Falls to Washington, D.C. flight should consider departing on Thursday at noon when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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 - Washington, D.C. Reagan-National or Idaho Falls Fanning Field - Baltimore/Washington as they are the most popular.

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

Flights from Idaho Falls to Washington, D.C. are found to be more expensive on Wednesday. This shouldn't discourage you from searching as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Washington, D.C..

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 3 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.

$153+ Flights from Idaho Falls to Washington, D.C.

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

Round-trip from	$395 (American Airlines)
One-way from	$153 (Kiwi.com)

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

Find 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 August 20, 2025.

Thu 10/231:11 pmIDA - DCA

1 stop7h 04mAmerican Airlines

Mon 10/276:59 amDCA - IDA

1 stop7h 26mAmerican Airlines

Deal found 8/20

$395

Fri 10/241:11 pmIDA - DCA

1 stop8h 31mAmerican Airlines

Tue 10/2811:59 amDCA - IDA

2 stops11h 49mAmerican Airlines

Deal found 8/18

$400

Wed 11/123:50 pmIDA - BWI

1 stop24h 26mAlaska Airlines

Sun 11/167:16 pmBWI - IDA

1 stop21h 57mAlaska Airlines

Deal found 8/19

$403

Sat 9/206:51 pmIDA - BWI

1 stop9h 09mDelta

Sat 9/277:15 amBWI - IDA

1 stop7h 11mDelta

Deal found 8/18

$407

Wed 11/128:30 amIDA - IAD

1 stop8h 22mUnited Airlines

Sun 11/168:25 amIAD - IDA

1 stop8h 51mUnited Airlines

Deal found 8/19

$423

Fri 9/2612:54 pmIDA - DCA

1 stop7h 06mAmerican Airlines

Fri 10/36:30 amDCA - IDA

1 stop7h 54mAmerican Airlines

Deal found 8/18

$427

Mon 9/82:35 pmIDA - BWI

1 stop6h 42mUnited Airlines

Wed 9/104:20 pmBWI - IDA

1 stop6h 34mUnited Airlines

Deal found 8/20

$431

Sat 9/206:00 amIDA - DCA

1 stop8h 11mDelta

Sat 9/272:40 pmDCA - IDA

2 stops9h 45mDelta

Deal found 8/18

$432

Wed 11/123:50 pmIDA - DCA

2 stops26h 10mAlaska Airlines

Sun 11/165:00 pmDCA - IDA

1 stop8h 59mAlaska Airlines

Deal found 8/19

$444

Thu 10/2312:55 pmIDA - BWI

1 stop7h 58mAmerican Airlines

Mon 10/276:00 amBWI - IDA

1 stop8h 25mAmerican Airlines

Deal found 8/20

$446

Thu 10/236:52 amIDA - IAD

1 stop8h 12mAmerican Airlines

Mon 10/276:11 amIAD - IDA

1 stop8h 30mAmerican Airlines

Deal found 8/20

$451

Thu 10/235:00 amIDA - BWI

2 stops10h 26mUnited Airlines

Mon 10/278:15 amBWI - IDA

1 stop9h 01mUnited Airlines

Deal found 8/20

$465

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 August 20, 2025.

Fri 10/241:11 pmIDA - DCA

1 stop7h 04mAmerican Airlines

Tue 10/286:59 amDCA - IDA

1 stop7h 25mAmerican Airlines

Deal found 8/18

$395

Wed 11/123:50 pmIDA - BWI

1 stop24h 26mAlaska Airlines

Sun 11/167:16 pmBWI - IDA

1 stop21h 57mAlaska Airlines

Deal found 8/19

$403

Sat 9/206:51 pmIDA - BWI

1 stop9h 09mDelta

Sat 9/277:15 amBWI - IDA

1 stop7h 11mDelta

Deal found 8/18

$407

Wed 11/128:30 amIDA - IAD

1 stop8h 22mUnited Airlines

Sun 11/168:25 amIAD - IDA

1 stop8h 51mUnited Airlines

Deal found 8/19

$423

Fri 10/246:00 amIDA - IAD

1 stop10h 28mHawaiian Airlines

Tue 10/287:43 amIAD - IDA

1 stop9h 30mHawaiian Airlines

Deal found 8/18

$469

Thu 10/231:11 pmIDA - DCA

1 stop7h 04mAmerican Airlines

Mon 10/276:59 amDCA - IDA

1 stop7h 26mAmerican Airlines

Deal found 8/20

$395

Sat 9/206:00 amIDA - DCA

1 stop8h 11mDelta

Sat 9/275:21 pmDCA - IDA

1 stop7h 04mDelta

Deal found 8/18

$427

Mon 9/82:35 pmIDA - BWI

1 stop6h 42mUnited Airlines

Wed 9/104:20 pmBWI - IDA

1 stop6h 34mUnited Airlines

Deal found 8/20

$431

Wed 11/123:50 pmIDA - DCA

2 stops26h 10mAlaska Airlines

Sun 11/165:00 pmDCA - IDA

1 stop8h 59mAlaska Airlines

Deal found 8/19

$444

Fri 9/2612:54 pmIDA - DCA

1 stop7h 06mAmerican Airlines

Fri 10/36:30 amDCA - IDA

1 stop7h 54mAmerican Airlines

Deal found 8/18

$427

Thu 10/235:00 amIDA - BWI

2 stops10h 26mUnited Airlines

Mon 10/278:15 amBWI - IDA

1 stop9h 01mUnited Airlines

Deal found 8/20

$465

Thu 10/2312:55 pmIDA - BWI

1 stop7h 58mAmerican Airlines

Mon 10/276:00 amBWI - IDA

1 stop8h 25mAmerican Airlines

Deal found 8/20

$446

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 August 20, 2025 and is based on user searches.

Wed 9/311:20 amIDA - BWI

2 stops11h 03mDelta

Sun 9/77:15 amBWI - IDA

1 stop9h 04mDelta

Deal found 8/19

$491

Wed 9/32:35 pmIDA - BWI

1 stop6h 42mUnited Airlines

Sun 9/78:30 amBWI - IDA

1 stop8h 59mUnited Airlines

Deal found 8/19

$529

Wed 9/36:44 amIDA - BWI

2 stops13h 02mAmerican Airlines

Sun 9/75:00 amBWI - IDA

2 stops10h 03mAmerican Airlines

Deal found 8/19

$546

Thu 9/410:56 amIDA - BWI

1 stop6h 16mUnited Airlines

Mon 9/84:20 pmBWI - IDA

1 stop8h 28mUnited Airlines

Deal found 8/20

$551

Mon 9/82:35 pmIDA - BWI

1 stop6h 42mUnited Airlines

Wed 9/104:20 pmBWI - IDA

1 stop6h 34mUnited Airlines

Deal found 8/20

$431

Sat 9/206:51 pmIDA - BWI

1 stop9h 09mDelta

Sat 9/277:15 amBWI - IDA

1 stop7h 11mDelta

Deal found 8/18

$407

Sat 9/206:00 amIDA - DCA

1 stop8h 11mDelta

Sat 9/272:40 pmDCA - IDA

2 stops9h 45mDelta

Deal found 8/18

$432

Sat 9/206:44 amIDA - IAD

1 stop8h 03mAmerican Airlines

Sat 9/276:25 amIAD - IDA

1 stop8h 34mAmerican Airlines

Deal found 8/18

$474

Sat 9/206:44 amIDA - DCA

2 stops10h 56mAmerican Airlines

Sat 9/271:30 pmDCA - IDA

2 stops9h 55mAmerican Airlines

Deal found 8/18

$485

Fri 9/2612:54 pmIDA - DCA

1 stop7h 06mAmerican Airlines

Fri 10/36:30 amDCA - IDA

1 stop7h 54mAmerican Airlines

Deal found 8/18

$427

Fri 9/261:35 pmIDA - IAD

1 stop7h 10mAmerican Airlines

Fri 10/36:25 amIAD - IDA

1 stop8h 34mAmerican Airlines

Deal found 8/20

$505

Fri 9/266:51 pmIDA - DCA

2 stops12h 18mDelta

Fri 10/35:21 pmDCA - IDA

1 stop7h 04mDelta

Deal found 8/18

$524

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 August 20, 2025.

Fri 10/1710:57 pmIDA - BWI

1 stop27h 33mMultiple Airlines

Deal found 8/20

$153

Fri 9/1210:55 pmIDA - BWI

1 stop27h 35mMultiple Airlines

Deal found 8/18

$164

Thu 10/161:11 pmIDA - DCA

1 stop8h 31mAmerican Airlines

Deal found 8/20

$198

Thu 10/166:53 pmIDA - BWI

1 stop9h 07mDelta

Deal found 8/20

$201

Thu 10/1610:13 pmIDA - BWI

2 stops30h 22mMultiple Airlines

Deal found 8/20

$206

Fri 10/179:54 amIDA - DCA

2 stops29h 10mMultiple Airlines

Deal found 8/20

$223

Fri 10/1712:55 pmIDA - IAD

1 stop7h 56mAmerican Airlines

Deal found 8/20

$230

Fri 10/1710:57 pmIDA - IAD

3 stops22h 33mMultiple Airlines

Deal found 8/20

$241

Thu 10/1610:13 pmIDA - IAD

2 stops35h 46mMultiple Airlines

Deal found 8/20

$247

Thu 10/1610:13 pmIDA - DCA

2 stops16h 51mMultiple Airlines

Deal found 8/20

$254

Thu 10/236:00 amIDA - IAD

1 stop10h 28mHawaiian Airlines

Deal found 8/18

$260

Thu 10/1612:55 pmIDA - IAD

1 stop7h 56mAmerican Airlines

Deal found 8/20

$276

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

Idaho FallsWashington, D.C.

IDA - DCA

IDADCA

Idaho Falls Fanning Field

Fri 10/24

1:11 pm-10:15 pm

1 stop7h 04m

Washington, D.C. Reagan-National

Tue 10/28

6:59 am-12:24 pm

1 stop7h 25m

$395

Idaho FallsWashington, D.C.

IDA - DCA

IDADCA

Idaho Falls Fanning Field

Thu 10/23

1:11 pm-10:15 pm

1 stop7h 04m

Washington, D.C. Reagan-National

Mon 10/27

6:59 am-12:25 pm

1 stop7h 26m

$395

Idaho FallsBaltimore

IDA - BWI

IDABWI

Idaho Falls Fanning Field

Wed 11/12

3:50 pm-6:16 pm

1 stop24h 26m

Baltimore/Washington

Sun 11/16

7:16 pm-3:13 pm

1 stop21h 57m

$403

Idaho FallsBaltimore

IDA - BWI

IDABWI

Idaho Falls Fanning Field

Sat 9/20

6:51 pm-6:00 am

1 stop9h 09m

Baltimore/Washington

Sat 9/27

7:15 am-12:26 pm

1 stop7h 11m

$407

Idaho FallsWashington, D.C.

IDA - IAD

IDAIAD

Idaho Falls Fanning Field

Wed 11/12

8:30 am-6:52 pm

1 stop8h 22m

Washington, D.C. Dulles Intl

Sun 11/16

8:25 am-3:16 pm

1 stop8h 51m

$423

Idaho FallsWashington, D.C.

IDA - DCA

IDADCA

Idaho Falls Fanning Field

Sat 9/20

6:00 am-4:11 pm

1 stop8h 11m

Washington, D.C. Reagan-National

Sat 9/27

5:21 pm-10:25 pm

1 stop7h 04m

$427

Idaho FallsWashington, D.C.

IDA - DCA

IDADCA

Idaho Falls Fanning Field

Fri 9/26

12:54 pm-10:00 pm

1 stop7h 06m

Washington, D.C. Reagan-National

Fri 10/3

6:30 am-12:24 pm

1 stop7h 54m

$427

Idaho FallsBaltimore

IDA - BWI

IDABWI

Idaho Falls Fanning Field

Mon 9/8

2:35 pm-11:17 pm

1 stop6h 42m

Baltimore/Washington

Wed 9/10

4:20 pm-8:54 pm

1 stop6h 34m

$431

Idaho FallsWashington, D.C.

IDA - DCA

IDADCA

Idaho Falls Fanning Field

Wed 11/12

3:50 pm-8:00 pm

2 stops26h 10m

Washington, D.C. Reagan-National

Sun 11/16

5:00 pm-11:59 pm

1 stop8h 59m

$444

Idaho FallsBaltimore

IDA - BWI

IDABWI

Idaho Falls Fanning Field

Thu 10/23

12:55 pm-10:53 pm

1 stop7h 58m

Baltimore/Washington

Mon 10/27

6:00 am-12:25 pm

1 stop8h 25m

$446

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/20

Showing 1-10 of 44 results

...

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.

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.

What is the cheapest month to book a flight from Idaho Falls to Washington, D.C.?

Currently, July is the cheapest month in which you can book a flight from Idaho Falls to Washington, D.C. (average of $303). Flying from Idaho Falls to Washington, D.C. in April is currently the most expensive (average of $337). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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

One of the essential ways to save on airfare from Idaho Falls to Washington, D.C. is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight at noon could potentially save you up to 9% on airfare.

Reviews of airlines servicing Washington, D.C.

Get a feel of what it's like to fly with 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.

United Airlines

7.4

Good

8,928 reviews

Reviews

1 / 20

2.0

Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

United Airlines

7.4

Good

8,928 reviews

United Airlines

7.4

Good

8,928 reviews

Reviews

1 / 20

2.0

Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

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 3 different airlines.
How long is the flight from Idaho Falls to Washington, D.C.?
American Airlines, Alaska Airlines, and Delta can get you from Idaho Falls to Washington, D.C. in just under 7h 04m. Your travel time can differ by up to 17h 22m. The distance between Idaho Falls and Washington, D.C. is about 1835 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.
What are the cheapest airlines flying from Idaho Falls to Washington, D.C. round-trip?
American Airlines, at $369, was found to be the cheapest airline from Idaho Falls to Washington, D.C.. An alternate airline flying to your destination would be United Airlines.
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 - Washington, D.C. Reagan-National or Idaho Falls Fanning Field - Baltimore/Washington 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.
What is the cheapest month to book a flight from Idaho Falls to Washington, D.C.?
Currently, July is the cheapest month in which you can book a flight from Idaho Falls to Washington, D.C. (average of $303). Flying from Idaho Falls to Washington, D.C. in April is currently the most expensive (average of $337). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Fairfax

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Laurel

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National Harbor

Dundalk

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Browse thousands of different options on Cheapflights for your next trip

Top 3 airlines flying from Idaho Falls to Washington, D.C.

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$346	Average$493	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$369	Average$607	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$394	Average$658	FlexibilityNo cancel fee	On-time69%

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$153+ Cheap flights from Idaho Falls (IDA) to Washington, D.C. (WAS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/17. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Idaho Falls to Washington, D.C. with Cheapflights

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

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One-way from

Find 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 August 20, 2025.

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 August 20, 2025.

Cheapflights Fare Finder

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

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.

Cheapflights Insights

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

What is the cheapest month to book a flight from Idaho Falls to Washington, D.C.?

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

Find hourly flight availability from Idaho Falls to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 20, 2025.

Reviews of airlines servicing Washington, D.C.

Get a feel of what it's like to fly with 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

Find useful and relevant information for your journey from Idaho Falls to Washington, D.C.. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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 are the cheapest airlines flying 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.?

What is the cheapest month to book a flight from Idaho Falls to Washington, D.C.?

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

Browse thousands of different options on Cheapflights for your next trip

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

See prices for flight routes from nearby airports that may be better suited for you.

Top 3 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 August 20, 2025.