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

Alaska Airlines, at $390, was found to be the cheapest airline from Idaho Falls to Washington, D.C..Alternate airlines to your destination round-trip include American Airlines and Delta.

What are the cheapest airlines to fly from Idaho Falls to Washington, D.C. one-way?

$204 is the cheapest one-way deal found within the past few days, from Delta. You may also be able to find cheap deals on United Airlines and Alaska Airlines, with prices starting from $231 and $264, respectively.

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.

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 - Baltimore/Washington, Idaho Falls Fanning Field - Washington, D.C. Reagan-National or Idaho Falls Fanning Field - Washington, D.C. Dulles Intl 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.

$204+ 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	$300 (Mytrip)
One-way from	$204 (Delta)

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 June 12, 2025.

Fri 8/2210:50 pmIDA - BWI

1 stop23h 20mMultiple Airlines

Sun 8/248:00 amBWI - IDA

1 stop28h 51mMultiple Airlines

Deal found 6/10

$300

Wed 9/246:13 amIDA - IAD

1 stop8h 56mAlaska Airlines

Sat 9/277:00 amIAD - IDA

1 stop10h 23mAlaska Airlines

Deal found 6/10

$390

Wed 9/246:44 amIDA - IAD

1 stop8h 06mAmerican Airlines

Sat 9/2712:48 pmIAD - IDA

2 stops10h 37mAmerican Airlines

Deal found 6/10

$396

Wed 9/246:50 pmIDA - IAD

2 stops12h 21mDelta

Sat 9/273:00 pmIAD - IDA

2 stops9h 20mDelta

Deal found 6/10

$401

Wed 9/244:03 pmIDA - BWI

1 stop11h 30mAlaska Airlines

Sat 9/277:00 amBWI - IDA

1 stop10h 23mAlaska Airlines

Deal found 6/10

$403

Wed 9/2412:43 pmIDA - BWI

1 stop8h 06mAmerican Airlines

Sat 9/2711:24 amBWI - IDA

2 stops12h 01mAmerican Airlines

Deal found 6/10

$409

Thu 7/106:52 pmIDA - BWI

1 stop8h 54mDelta

Sun 7/137:10 amBWI - IDA

1 stop9h 14mDelta

Deal found 6/10

$421

Fri 7/46:00 amIDA - DCA

2 stops10h 34mDelta

Fri 7/115:59 pmDCA - IDA

1 stop6h 30mDelta

Deal found 6/10

$422

Sun 8/244:03 pmIDA - DCA

2 stops27h 56mAlaska Airlines

Sat 10/258:00 amDCA - IDA

1 stop9h 38mAlaska Airlines

Deal found 6/11

$462

Mon 7/144:13 pmIDA - IAD

1 stop6h 32mUnited Airlines

Mon 7/216:30 amIAD - IDA

1 stop9h 02mUnited Airlines

Deal found 6/11

$474

Sun 8/2412:46 pmIDA - DCA

1 stop18h 14mAmerican Airlines

Sat 10/253:20 pmDCA - IDA

1 stop7h 51mAmerican Airlines

Deal found 6/11

$474

Wed 7/96:03 pmIDA - BWI

1 stop9h 07mUnited Airlines

Mon 7/1410:05 amBWI - IDA

1 stop9h 17mUnited Airlines

Deal found 6/10

$491

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 June 12, 2025.

Fri 8/2210:50 pmIDA - BWI

1 stop23h 20mMultiple Airlines

Sun 8/248:00 amBWI - IDA

1 stop28h 51mMultiple Airlines

Deal found 6/10

$300

Wed 9/246:13 amIDA - IAD

1 stop8h 56mAlaska Airlines

Sat 9/277:00 amIAD - IDA

1 stop10h 23mAlaska Airlines

Deal found 6/10

$390

Wed 9/246:44 amIDA - IAD

1 stop8h 06mAmerican Airlines

Sat 9/2712:48 pmIAD - IDA

2 stops10h 37mAmerican Airlines

Deal found 6/10

$396

Wed 9/246:50 pmIDA - IAD

2 stops12h 21mDelta

Sat 9/273:00 pmIAD - IDA

2 stops9h 20mDelta

Deal found 6/10

$401

Mon 7/144:13 pmIDA - IAD

1 stop6h 32mUnited Airlines

Mon 7/216:30 amIAD - IDA

1 stop9h 02mUnited Airlines

Deal found 6/11

$474

Wed 9/244:03 pmIDA - BWI

1 stop11h 30mAlaska Airlines

Sat 9/277:00 amBWI - IDA

1 stop10h 23mAlaska Airlines

Deal found 6/10

$403

Wed 9/2412:43 pmIDA - BWI

1 stop8h 06mAmerican Airlines

Sat 9/2711:24 amBWI - IDA

2 stops12h 01mAmerican Airlines

Deal found 6/10

$409

Thu 7/106:52 pmIDA - BWI

1 stop8h 54mDelta

Sun 7/137:10 amBWI - IDA

1 stop9h 14mDelta

Deal found 6/10

$421

Fri 7/46:00 amIDA - DCA

2 stops10h 34mDelta

Fri 7/115:59 pmDCA - IDA

1 stop6h 30mDelta

Deal found 6/10

$422

Wed 7/96:03 pmIDA - BWI

1 stop9h 07mUnited Airlines

Mon 7/1410:05 amBWI - IDA

1 stop9h 17mUnited Airlines

Deal found 6/10

$491

Sun 8/244:03 pmIDA - DCA

2 stops27h 56mAlaska Airlines

Sat 10/258:00 amDCA - IDA

1 stop9h 38mAlaska Airlines

Deal found 6/11

$462

Sun 8/2412:46 pmIDA - DCA

1 stop18h 14mAmerican Airlines

Sat 10/253:20 pmDCA - IDA

1 stop7h 51mAmerican Airlines

Deal found 6/11

$474

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 June 12, 2025 and is based on user searches.

Wed 6/255:00 amIDA - DCA

1 stop8h 05mUnited Airlines

Sun 6/294:17 pmDCA - IDA

1 stop8h 34mUnited Airlines

Deal found 6/10

$563

Fri 7/46:00 amIDA - DCA

2 stops10h 34mDelta

Fri 7/115:59 pmDCA - IDA

1 stop6h 30mDelta

Deal found 6/10

$422

Fri 7/41:51 pmIDA - IAD

1 stop6h 48mAmerican Airlines

Fri 7/116:27 amIAD - IDA

1 stop8h 50mAmerican Airlines

Deal found 6/10

$466

Fri 7/41:51 pmIDA - DCA

2 stops15h 54mAmerican Airlines

Fri 7/111:35 pmDCA - IDA

2 stops10h 00mAmerican Airlines

Deal found 6/10

$577

Tue 7/84:13 pmIDA - IAD

1 stop6h 32mMultiple Airlines

Wed 7/96:30 amIAD - IDA

1 stop10h 52mMultiple Airlines

Deal found 6/10

$642

Wed 7/96:03 pmIDA - BWI

1 stop9h 07mUnited Airlines

Mon 7/1410:05 amBWI - IDA

1 stop9h 17mUnited Airlines

Deal found 6/10

$491

Thu 7/106:52 pmIDA - BWI

1 stop8h 54mDelta

Sun 7/137:10 amBWI - IDA

1 stop9h 14mDelta

Deal found 6/10

$421

Mon 7/144:13 pmIDA - IAD

1 stop6h 32mUnited Airlines

Mon 7/216:30 amIAD - IDA

1 stop9h 02mUnited Airlines

Deal found 6/11

$474

Mon 7/146:52 pmIDA - IAD

2 stops12h 07mDelta

Mon 7/217:45 amIAD - IDA

1 stop8h 39mDelta

Deal found 6/11

$532

Mon 7/146:15 amIDA - IAD

2 stops34h 44mAlaska Airlines

Mon 7/218:19 pmIAD - IDA

2 stops28h 20mAlaska Airlines

Deal found 6/11

$606

Sat 7/269:34 pmIDA - BWI

3 stops35h 55mMultiple Airlines

Mon 9/85:45 amBWI - IDA

2 stops11h 04mMultiple Airlines

Deal found 6/11

$473

Sat 7/266:51 amIDA - BWI

2 stops13h 26mAmerican Airlines

Mon 9/86:41 amBWI - IDA

1 stop8h 18mAmerican Airlines

Deal found 6/11

$585

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 June 12, 2025.

Sun 8/246:52 pmIDA - BWI

1 stop9h 08mDelta

Deal found 6/11

$204

Wed 6/252:25 pmIDA - IAD

1 stop8h 09mUnited Airlines

Deal found 6/11

$231

Wed 6/256:52 pmIDA - IAD

2 stops12h 08mDelta

Deal found 6/11

$236

Wed 6/256:00 amIDA - DCA

2 stops10h 56mDelta

Deal found 6/11

$236

Sun 8/244:03 pmIDA - IAD

1 stop13h 29mAlaska Airlines

Deal found 6/10

$264

Sun 10/1212:46 pmIDA - DCA

1 stop9h 04mAmerican Airlines

Deal found 6/11

$281

Tue 6/242:25 pmIDA - BWI

1 stop6h 29mUnited Airlines

Deal found 6/10

$289

Sun 10/124:15 pmIDA - DCA

2 stops50h 14mAlaska Airlines

Deal found 6/11

$392

Sun 8/246:13 amIDA - DCA

1 stop8h 36mHawaiian Airlines

Deal found 6/10

$451

Sun 10/125:00 amIDA - DCA

3 stops15h 10mUnited Airlines

Deal found 6/11

$950

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 FallsBaltimore

IDA - BWI

IDABWI

Idaho Falls Fanning Field

Fri 8/22

10:50 pm-12:10 am

1 stop23h 20m

Baltimore/Washington

Sun 8/24

8:00 am-10:51 am

1 stop28h 51m

$300

Idaho FallsWashington, D.C.

IDA - IAD

IDAIAD

Idaho Falls Fanning Field

Wed 9/24

6:13 am-5:09 pm

1 stop8h 56m

Washington, D.C. Dulles Intl

Sat 9/27

7:00 am-3:23 pm

1 stop10h 23m

$390

Idaho FallsWashington, D.C.

IDA - IAD

IDAIAD

Idaho Falls Fanning Field

Wed 9/24

6:44 am-4:50 pm

1 stop8h 06m

Washington, D.C. Dulles Intl

Sat 9/27

12:48 pm-9:25 pm

2 stops10h 37m

$396

Idaho FallsWashington, D.C.

IDA - IAD

IDAIAD

Idaho Falls Fanning Field

Wed 9/24

6:50 pm-9:11 am

2 stops12h 21m

Washington, D.C. Dulles Intl

Sat 9/27

3:00 pm-10:20 pm

2 stops9h 20m

$401

Idaho FallsBaltimore

IDA - BWI

IDABWI

Idaho Falls Fanning Field

Wed 9/24

4:03 pm-5:33 am

1 stop11h 30m

Baltimore/Washington

Sat 9/27

7:00 am-3:23 pm

1 stop10h 23m

$403

Idaho FallsBaltimore

IDA - BWI

IDABWI

Idaho Falls Fanning Field

Wed 9/24

12:43 pm-10:49 pm

1 stop8h 06m

Baltimore/Washington

Sat 9/27

11:24 am-9:25 pm

2 stops12h 01m

$409

Idaho FallsBaltimore

IDA - BWI

IDABWI

Idaho Falls Fanning Field

Thu 7/10

6:52 pm-5:46 am

1 stop8h 54m

Baltimore/Washington

Sun 7/13

7:10 am-2:24 pm

1 stop9h 14m

$421

Idaho FallsWashington, D.C.

IDA - DCA

IDADCA

Idaho Falls Fanning Field

Fri 7/4

6:00 am-6:34 pm

2 stops10h 34m

Washington, D.C. Reagan-National

Fri 7/11

5:59 pm-10:29 pm

1 stop6h 30m

$422

Idaho FallsWashington, D.C.

IDA - DCA

IDADCA

Idaho Falls Fanning Field

Sun 8/24

4:03 pm-9:59 pm

2 stops27h 56m

Washington, D.C. Reagan-National

Sat 10/25

8:00 am-3:38 pm

1 stop9h 38m

$462

Idaho FallsWashington, D.C.

IDA - IAD

IDAIAD

Idaho Falls Fanning Field

Mon 7/14

4:13 pm-12:45 am

1 stop6h 32m

Washington, D.C. Dulles Intl

Mon 7/21

6:30 am-1:32 pm

1 stop9h 02m

$474

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 25 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, August is the cheapest month in which you can book a flight from Idaho Falls to Washington, D.C. (average of $241). Flying from Idaho Falls to Washington, D.C. in March is currently the most expensive (average of $290). 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.

Rainfall in Washington, D.C. by month

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.

Temperature in Washington, D.C. by month

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).

Reviews of airlines servicing Washington, D.C.

To help decide which airline to fly from Idaho Falls to Washington, D.C., see what other customers have to say about Alaska Airlines, Delta and Hawaiian Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Alaska Airlines

8.0

Very good

10,000 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Delta

8.0

Very good

7,950 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Hawaiian Airlines

7.9

Good

2,494 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

United Airlines

7.4

Good

8,790 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

American Airlines

7.2

Good

10,000 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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.
What are the cheapest airlines flying from Idaho Falls to Washington, D.C. round-trip?
Alaska Airlines, at $390, was found to be the cheapest airline from Idaho Falls to Washington, D.C..Alternate airlines to your destination round-trip include American Airlines and Delta.
What are the cheapest airlines to fly from Idaho Falls to Washington, D.C. one-way?
$204 is the cheapest one-way deal found within the past few days, from Delta. You may also be able to find cheap deals on United Airlines and Alaska Airlines, with prices starting from $231 and $264, respectively.
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 - Baltimore/Washington, Idaho Falls Fanning Field - Washington, D.C. Reagan-National or Idaho Falls Fanning Field - Washington, D.C. Dulles Intl 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, August is the cheapest month in which you can book a flight from Idaho Falls to Washington, D.C. (average of $241). Flying from Idaho Falls to Washington, D.C. in March is currently the most expensive (average of $290). 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

Arlington

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Woodbridge

Tysons

Silver Spring

Linthicum Heights

Fredericksburg

Gaithersburg

Fairfax

Falls Church

Easton

Herndon

Towson

Bowie

Rockville

Reston

National Harbor

Springfield

Manassas

Dundalk

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$338	Average$426	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$369	Average$650	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$394	Average$735	FlexibilityNo cancel fee	On-time69%

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$204+ 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 8/24. 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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3. Compare prices and book

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

Round-trip from

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 June 12, 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 June 12, 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 June 12, 2025.

Rainfall in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average rainfall totals by month.

Temperature in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average temperature totals by month.

Reviews of airlines servicing Washington, D.C.

To help decide which airline to fly from Idaho Falls to Washington, D.C., see what other customers have to say about Alaska Airlines, Delta and Hawaiian Airlines. You can also see how each airline stacks up 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.?

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

What are the cheapest airlines to fly from Idaho Falls to Washington, D.C. one-way?

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 Idaho Falls?

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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 June 12, 2025.