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

Delta, at $324, was found to be the cheapest airline from Washington, D.C. to Idaho Falls.Alternate airlines to your destination round-trip include American Airlines and United Airlines. Delta is currently priced 54% below the average price you’ll pay for this route.

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

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

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

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

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

Saturday flights are found to be more expensive to fly from Washington, D.C. to Idaho Falls. 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 Idaho Falls.

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

Flights from Washington, D.C. to Idaho Falls lean towards being more expensive in November. Prices are generally better when you fly from Washington, D.C. to Idaho Falls in January, with the cheapest ticket starting at $439.

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

Most trusted provider : When it comes to deals on Washington, D.C.-Idaho Falls 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 Washington, D.C.-Idaho Falls flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

What airport do you fly into for flights to Idaho Falls from 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 Idaho Falls from Washington, D.C.. Booking flights from Washington, D.C. to Fanning Field (IDA) should be relatively easy as there are 0 daily inbound flights from Washington, D.C. from 3 different airlines.

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

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

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

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

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

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

$324+ Flights from Washington, D.C. to Idaho Falls

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

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$324 (Delta)
Popular in	November
Cheapest in	January
Average price	$709

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

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

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

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High demand for flights, 3% potential price rise

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Best time to find cheap flights, 2% potential price drop

Search Deals

Average for round-trip flights in December 2024

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

Cheapest flights from Washington, D.C. to Idaho Falls
Explore the most affordable flight options available from Washington, D.C. to Idaho Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 19, 2024.

Tue 12/316:40 amBWI - IDA

1 stop7h 46mDelta

Sat 1/46:55 pmIDA - BWI

2 stops11h 59mDelta

Deal found 12/18

$1,002

Fri 12/276:35 amBWI - IDA

1 stop8h 31mUnited Airlines

Thu 1/27:00 amIDA - BWI

1 stop14h 28mUnited Airlines

Deal found 12/17

$1,031

Fri 12/2710:35 amDCA - IDA

2 stops13h 46mAmerican Airlines

Thu 1/25:25 amIDA - DCA

2 stops11h 34mAmerican Airlines

Deal found 12/17

$1,058

Tue 12/315:06 pmIAD - IDA

2 stops23h 50mAlaska Airlines

Sat 1/46:00 amIDA - IAD

1 stop9h 58mAlaska Airlines

Deal found 12/18

$1,106

Fri 12/276:30 amIAD - IDA

1 stop8h 36mUnited Airlines

Thu 1/27:00 amIDA - IAD

1 stop20h 08mUnited Airlines

Deal found 12/17

$1,120

Tue 12/3110:20 amDCA - IDA

2 stops15h 39mAlaska Airlines

Sat 1/46:00 amIDA - DCA

1 stop8h 40mAlaska Airlines

Deal found 12/18

$1,204

Tue 12/316:00 amBWI - IDA

1 stop9h 14mAmerican Airlines

Sat 1/41:44 pmIDA - BWI

1 stop7h 16mAmerican Airlines

Deal found 12/18

$1,218

Tue 12/313:10 pmIAD - IDA

2 stops9h 16mDelta

Sat 1/46:55 pmIDA - IAD

2 stops12h 21mDelta

Deal found 12/18

$1,246

Tue 12/313:00 pmDCA - IDA

2 stops9h 26mDelta

Sat 1/46:55 pmIDA - DCA

2 stops12h 04mDelta

Deal found 12/18

$1,899

Best flights from Washington, D.C. to Idaho Falls
Discover carefully curated flight deals from Washington, D.C. to Idaho Falls that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 19, 2024.

Sun 1/195:10 pmDCA - IDA

1 stop7h 34mDelta

Sat 1/256:00 amIDA - DCA

1 stop8h 00mDelta

Deal found 12/18

$324

Sun 1/1911:40 amDCA - IDA

2 stops12h 37mAmerican Airlines

Sat 1/255:30 amIDA - DCA

2 stops9h 25mAmerican Airlines

Deal found 12/18

$335

Sun 1/1910:05 amIAD - IDA

1 stop9h 04mUnited Airlines

Sat 1/252:28 pmIDA - IAD

1 stop7h 02mUnited Airlines

Deal found 12/19

$359

Sun 1/196:57 pmIAD - IDA

1 stop22h 30mAlaska Airlines

Sat 1/258:00 amIDA - IAD

2 stops30h 23mAlaska Airlines

Deal found 12/19

$401

Thu 1/26:25 pmBWI - IDA

2 stops21h 08mMultiple Airlines

Mon 1/64:28 pmIDA - BWI

2 stops28h 18mMultiple Airlines

Deal found 12/17

$510

Wed 2/267:15 amBWI - IDA

1 stop7h 15mDelta

Wed 3/127:00 pmIDA - BWI

1 stop9h 08mDelta

Deal found 12/18

$406

Sun 1/196:59 pmBWI - IDA

1 stop22h 28mAlaska Airlines

Sat 1/254:04 pmIDA - BWI

1 stop23h 55mAlaska Airlines

Deal found 12/18

$413

Sun 1/196:10 amIAD - IDA

1 stop8h 15mAmerican Airlines

Sat 1/255:30 amIDA - IAD

2 stops15h 11mAmerican Airlines

Deal found 12/18

$419

Sun 1/1910:05 amBWI - IDA

2 stops9h 04mUnited Airlines

Sat 1/252:28 pmIDA - BWI

1 stop7h 16mUnited Airlines

Deal found 12/19

$533

Wed 2/268:00 amDCA - IDA

1 stop16h 36mAlaska Airlines

Wed 3/128:00 amIDA - DCA

1 stop11h 59mAlaska Airlines

Deal found 12/18

$543

Wed 2/2611:16 amBWI - IDA

2 stops12h 55mAmerican Airlines

Wed 3/127:15 amIDA - BWI

2 stops13h 03mAmerican Airlines

Deal found 12/18

$582

Wed 2/266:25 amDCA - IDA

3 stops16h 42mUnited Airlines

Wed 3/125:40 pmIDA - DCA

2 stops14h 51mUnited Airlines

Deal found 12/18

$741

Last-minute flights from Washington, D.C. to Idaho Falls
Discover last-minute flight deals from Washington, D.C. to Idaho Falls. Data last updated December 19, 2024 and is based on user searches.

Tue 12/2410:15 pmIAD - IDA

2 stops16h 51mUnited Airlines

Sat 12/287:00 amIDA - IAD

1 stop6h 39mUnited Airlines

Deal found 12/18

$911

Tue 12/246:21 amIAD - IDA

3 stops14h 20mAmerican Airlines

Sat 12/281:44 pmIDA - IAD

2 stops21h 39mAmerican Airlines

Deal found 12/18

$1,630

Fri 12/276:35 amBWI - IDA

1 stop8h 31mUnited Airlines

Thu 1/27:00 amIDA - BWI

1 stop14h 28mUnited Airlines

Deal found 12/17

$1,031

Fri 12/2710:35 amDCA - IDA

2 stops13h 46mAmerican Airlines

Thu 1/25:25 amIDA - DCA

2 stops11h 34mAmerican Airlines

Deal found 12/17

$1,058

Fri 12/271:30 pmBWI - IDA

2 stops10h 51mAmerican Airlines

Thu 1/21:44 pmIDA - BWI

2 stops8h 47mAmerican Airlines

Deal found 12/17

$1,589

Fri 12/2712:30 pmIAD - IDA

2 stops11h 56mDelta

Thu 1/21:10 pmIDA - IAD

2 stops8h 48mDelta

Deal found 12/17

$2,710

Tue 12/316:00 amBWI - IDA

1 stop9h 14mAmerican Airlines

Sat 1/41:44 pmIDA - BWI

1 stop7h 16mAmerican Airlines

Deal found 12/18

$1,218

Thu 1/26:25 pmBWI - IDA

2 stops21h 08mMultiple Airlines

Mon 1/64:28 pmIDA - BWI

2 stops28h 18mMultiple Airlines

Deal found 12/17

$510

Thu 1/26:30 amIAD - IDA

1 stop8h 36mUnited Airlines

Mon 1/610:49 amIDA - IAD

1 stop22h 34mUnited Airlines

Deal found 12/17

$758

Thu 1/28:00 amDCA - IDA

1 stop17h 59mAlaska Airlines

Mon 1/68:00 amIDA - DCA

1 stop11h 59mAlaska Airlines

Deal found 12/17

$1,114

Sun 1/195:10 pmDCA - IDA

1 stop7h 34mDelta

Sat 1/256:00 amIDA - DCA

1 stop8h 00mDelta

Deal found 12/18

$324

Sun 1/1911:40 amDCA - IDA

2 stops12h 37mAmerican Airlines

Sat 1/255:30 amIDA - DCA

2 stops9h 25mAmerican Airlines

Deal found 12/18

$335

Find flights from Washington, D.C. to Idaho Falls within your budget

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Idaho Falls

DCA - IDA

DCAIDA

Washington, D.C. Reagan-National

Sun 1/19

5:10 pm-10:44 pm

1 stop7h 34m

Idaho Falls Fanning Field

Sat 1/25

6:00 am-4:00 pm

1 stop8h 00m

$324

Washington, D.C.Idaho Falls

DCA - IDA

DCAIDA

Washington, D.C. Reagan-National

Sun 1/19

11:40 am-10:17 pm

2 stops12h 37m

Idaho Falls Fanning Field

Sat 1/25

5:30 am-4:55 pm

2 stops9h 25m

$335

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Sun 1/19

10:05 am-5:09 pm

1 stop9h 04m

Idaho Falls Fanning Field

Sat 1/25

2:28 pm-11:30 pm

1 stop7h 02m

$359

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Sun 1/19

6:57 pm-3:27 pm

1 stop22h 30m

Idaho Falls Fanning Field

Sat 1/25

8:00 am-4:23 pm

2 stops30h 23m

$401

BaltimoreIdaho Falls

BWI - IDA

BWIIDA

Baltimore/Washington

Wed 2/26

7:15 am-12:30 pm

1 stop7h 15m

Idaho Falls Fanning Field

Wed 3/12

7:00 pm-6:08 am

1 stop9h 08m

$406

BaltimoreIdaho Falls

BWI - IDA

BWIIDA

Baltimore/Washington

Sun 1/19

6:59 pm-3:27 pm

1 stop22h 28m

Idaho Falls Fanning Field

Sat 1/25

4:04 pm-5:59 pm

1 stop23h 55m

$413

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Sun 1/19

6:10 am-12:25 pm

1 stop8h 15m

Idaho Falls Fanning Field

Sat 1/25

5:30 am-10:41 pm

2 stops15h 11m

$419

BaltimoreIdaho Falls

BWI - IDA

BWIIDA

Baltimore/Washington

Thu 1/2

6:25 pm-1:33 pm

2 stops21h 08m

Idaho Falls Fanning Field

Mon 1/6

4:28 pm-10:46 pm

2 stops28h 18m

$510

BaltimoreIdaho Falls

BWI - IDA

BWIIDA

Baltimore/Washington

Sun 1/19

10:05 am-5:09 pm

2 stops9h 04m

Idaho Falls Fanning Field

Sat 1/25

2:28 pm-11:44 pm

1 stop7h 16m

$533

Washington, D.C.Idaho Falls

DCA - IDA

DCAIDA

Washington, D.C. Reagan-National

Wed 2/26

8:00 am-10:36 pm

1 stop16h 36m

Idaho Falls Fanning Field

Wed 3/12

8:00 am-9:59 pm

1 stop11h 59m

$543

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/18

Showing 1-10 of 13 results

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

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

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
eDreams	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 Washington, D.C.-Idaho Falls flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C.-Idaho Falls flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C.-Idaho Falls flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Washington, D.C.-Idaho Falls 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 Washington, D.C.-Idaho Falls 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 Washington, D.C. to Idaho Falls

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

Travel insights for flights from Washington, D.C. to Idaho Falls

Get recent, data-driven insights about flights from Washington, D.C. to Idaho Falls including ideal travel times, pricing trends, and more.

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

Currently, October is the cheapest month in which you can book a flight from Washington, D.C. to Idaho Falls (average of $380). Flying from Washington, D.C. to Idaho Falls in July is currently the most expensive (average of $628). 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 WAS to IDA?

A simple way to save on the total cost of your ticket is to fly from Washington, D.C. to Idaho Falls in the morning. If you’re flexible enough to do this you can expect to save up to 6% on your trip compared to booking a flight at noon.

Rainfall in Idaho Falls by month

In terms of precipitation, rainfall in Idaho Falls ranges from 0.6 - 2.0 inches per month. May is typically the wettest month, when rainfall can reach 2.0 in. July is typically the driest time to visit Idaho Falls when rainfall is around 0.6 in.

Temperature in Idaho Falls by month

If weather is an important factor for your trip to Idaho Falls, 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 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

Reviews of airlines servicing Idaho Falls

Peruse reviews from past customers who have flown with Delta, American Airlines and Alaska Airlines from Washington, D.C. to Idaho Falls to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

8.0

Very good

9,551 reviews

Reviews

1 / 10

Things were good, crew was good. It was just the flight itself was very rough. Lots of turbulence, probably one of the shakiest flights I've been on. Kids throwing up, kids crying everywhere because of it.

Alaska Airlines

8.0

Very good

9,551 reviews

Alaska Airlines

8.0

Very good

9,551 reviews

Reviews

1 / 10

Delta

8.0

Very good

8,600 reviews

Alaska Airlines

8.0

Very good

9,551 reviews

Reviews

1 / 10

United Airlines

7.4

Good

9,048 reviews

Alaska Airlines

8.0

Very good

9,551 reviews

Reviews

1 / 10

American Airlines

7.2

Good

10,000 reviews

Alaska Airlines

8.0

Very good

9,551 reviews

Reviews

1 / 10

Related info for your journey

What airport do you fly into for flights to Idaho Falls from 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 Idaho Falls from Washington, D.C.. Booking flights from Washington, D.C. to Fanning Field (IDA) should be relatively easy as there are 0 daily inbound flights from Washington, D.C. from 3 different airlines.
What are the cheapest airlines flying from Washington, D.C. to Idaho Falls round-trip?
Delta, at $324, was found to be the cheapest airline from Washington, D.C. to Idaho Falls.Alternate airlines to your destination round-trip include American Airlines and United Airlines. Delta is currently priced 54% below the average price you’ll pay for this route.
What are the most popular routes from Washington, D.C. to Idaho Falls?
When deciding which route to take from Washington, D.C. to Idaho Falls consider Washington, D.C. Dulles Intl - Idaho Falls Fanning Field, Baltimore/Washington - Idaho Falls Fanning Field or Washington, D.C. Reagan-National - Idaho Falls Fanning Field as they are the most popular.
Can I find deals for flights from Washington, D.C. to Idaho Falls that include hotel bookings?
Yes. In addition to deals on Washington, D.C. to Idaho Falls flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Washington, D.C. to Idaho Falls?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to Idaho Falls.
Can I find deals for business class flights from Washington, D.C. to Idaho Falls?
Yes. Cheapflights offers flight deals from Washington, D.C. to Idaho Falls 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 Washington, D.C. to Idaho Falls?
Currently, October is the cheapest month in which you can book a flight from Washington, D.C. to Idaho Falls (average of $380). Flying from Washington, D.C. to Idaho Falls in July is currently the most expensive (average of $628). 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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Alternative routes for Washington, D.C. to Idaho Falls

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

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$402	Average$756	FlexibilityNo cancel fee	On-time69%
Alaska Airlines	Cheapest$425	Average$500	FlexibilityNo cancel fee	On-time75%
American Airlines	Cheapest$524	Average$738	FlexibilityNo cancel fee	On-time71%

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$324+ Cheap flights from Washington, D.C. (WAS) to Idaho Falls (IDA)

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 1/19. Fares are subject to change and may not be available on all flights or dates of travel.

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

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

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

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Most trusted provider

Round-trip from

Popular in

Cheapest in

Average price

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

Cheapest flights from Washington, D.C. to Idaho FallsExplore the most affordable flight options available from Washington, D.C. to Idaho Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 19, 2024.

Explore the most affordable flight options available from Washington, D.C. to Idaho Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 19, 2024.

Find flights from Washington, D.C. to Idaho Falls within your budget

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

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 Washington, D.C. to Idaho Falls in December.

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

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

Travel insights for flights from Washington, D.C. to Idaho Falls

Get recent, data-driven insights about flights from Washington, D.C. to Idaho Falls including ideal travel times, pricing trends, and more.

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

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

Find hourly flight availability from Washington, D.C. to Idaho Falls. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 19, 2024.

Rainfall in Idaho Falls by month

Plan your trip to Idaho Falls by taking into account the average rainfall totals by month.

Temperature in Idaho Falls by month

Plan your trip to Idaho Falls by taking into account the average temperature totals by month.

Reviews of airlines servicing Idaho Falls

Peruse reviews from past customers who have flown with Delta, American Airlines and Alaska Airlines from Washington, D.C. to Idaho Falls to help guide your decision. You can also see how each airline compares 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 Washington, D.C. to Idaho Falls. 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 into for flights to Idaho Falls from Washington, D.C.?

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

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

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

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

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

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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

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

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

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Cheapest flights from Washington, D.C. to Idaho Falls
Explore the most affordable flight options available from Washington, D.C. to Idaho Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 19, 2024.