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

Alaska Airlines, at $390, 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 Delta. Alaska Airlines is currently priced 42% below the average price you’ll pay for this route.

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

The cheapest airlines for a one-way flight from Washington, D.C. to Idaho Falls are Hawaiian Airlines ($195), American Airlines ($196), and Delta ($196).

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 are the most popular airlines that fly from Washington, D.C. to Idaho Falls?

When booking a flight from Washington, D.C. to Idaho Falls, you may want to consider flying on American Airlines, Delta or United Airlines as they are the most popular for this route.

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 $392.

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.

$164+ Flights from Washington, D.C. to Idaho Falls

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

Round-trip from	$326 (Mytrip)
One-way from	$164 (Mytrip)
Popular in	November
Cheapest in	January
Average price	$748

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

Search Deals

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

Search Deals

Highest demand for flights based on searches. 6% potential increase in price ($45 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($17 potential savings vs. average RT price).

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Average for round-trip flights in June 2025

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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 June 12, 2025.

Wed 8/135:45 amBWI - IDA

3 stops37h 21mMultiple Airlines

Fri 8/2210:50 pmIDA - BWI

1 stop23h 20mMultiple Airlines

Deal found 6/10

$326

Tue 8/268:00 amDCA - IDA

1 stop9h 23mAlaska Airlines

Wed 8/276:13 amIDA - DCA

1 stop8h 36mAlaska Airlines

Deal found 6/10

$390

Tue 8/267:00 amIAD - IDA

1 stop10h 23mAlaska Airlines

Wed 8/274:03 pmIDA - IAD

1 stop13h 29mAlaska Airlines

Deal found 6/10

$390

Sun 8/245:00 amDCA - IDA

1 stop9h 16mAmerican Airlines

Sat 10/251:50 pmIDA - DCA

1 stop7h 10mAmerican Airlines

Deal found 6/11

$393

Wed 8/137:30 amIAD - IDA

1 stop8h 49mDelta

Fri 8/223:00 pmIDA - IAD

1 stop6h 32mDelta

Deal found 6/10

$393

Tue 7/13:56 pmIAD - IDA

1 stop8h 55mUnited Airlines

Tue 7/154:13 pmIDA - IAD

1 stop6h 32mUnited Airlines

Deal found 6/10

$395

Tue 8/126:27 amIAD - IDA

1 stop7h 49mAmerican Airlines

Thu 8/2112:46 pmIDA - IAD

2 stops9h 13mAmerican Airlines

Deal found 6/10

$398

Tue 8/267:00 amBWI - IDA

1 stop10h 23mAlaska Airlines

Wed 8/274:03 pmIDA - BWI

1 stop11h 30mAlaska Airlines

Deal found 6/10

$400

Mon 7/285:59 pmDCA - IDA

1 stop6h 30mDelta

Tue 7/296:52 pmIDA - DCA

2 stops11h 44mDelta

Deal found 6/11

$400

Tue 8/127:15 amBWI - IDA

1 stop9h 04mDelta

Thu 8/216:52 pmIDA - BWI

1 stop9h 08mDelta

Deal found 6/10

$401

Sat 7/124:20 pmBWI - IDA

1 stop8h 31mUnited Airlines

Tue 7/156:03 pmIDA - BWI

1 stop9h 07mUnited Airlines

Deal found 6/11

$404

Tue 8/126:00 amBWI - IDA

1 stop9h 00mAmerican Airlines

Thu 8/217:00 amIDA - BWI

2 stops11h 52mAmerican Airlines

Deal found 6/10

$406

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 June 12, 2025.

Wed 8/135:45 amBWI - IDA

3 stops37h 21mMultiple Airlines

Fri 8/2210:50 pmIDA - BWI

1 stop23h 20mMultiple Airlines

Deal found 6/10

$326

Tue 8/268:00 amDCA - IDA

1 stop9h 23mAlaska Airlines

Wed 8/276:13 amIDA - DCA

1 stop8h 36mAlaska Airlines

Deal found 6/10

$390

Sun 8/245:00 amDCA - IDA

1 stop9h 16mAmerican Airlines

Sat 10/251:50 pmIDA - DCA

1 stop7h 10mAmerican Airlines

Deal found 6/11

$393

Wed 8/137:30 amIAD - IDA

1 stop8h 49mDelta

Fri 8/223:00 pmIDA - IAD

1 stop6h 32mDelta

Deal found 6/10

$393

Tue 7/13:56 pmIAD - IDA

1 stop8h 55mUnited Airlines

Tue 7/154:13 pmIDA - IAD

1 stop6h 32mUnited Airlines

Deal found 6/10

$395

Tue 8/128:00 amDCA - IDA

1 stop9h 22mHawaiian Airlines

Fri 8/226:13 amIDA - DCA

1 stop8h 36mHawaiian Airlines

Deal found 6/9

$611

Tue 8/267:00 amIAD - IDA

1 stop10h 23mAlaska Airlines

Wed 8/274:03 pmIDA - IAD

1 stop13h 29mAlaska Airlines

Deal found 6/10

$390

Tue 8/126:27 amIAD - IDA

1 stop7h 49mAmerican Airlines

Thu 8/2112:46 pmIDA - IAD

2 stops9h 13mAmerican Airlines

Deal found 6/10

$398

Mon 7/285:59 pmDCA - IDA

1 stop6h 30mDelta

Wed 7/306:52 pmIDA - DCA

2 stops11h 44mDelta

Deal found 6/11

$400

Sat 7/124:20 pmBWI - IDA

1 stop8h 31mUnited Airlines

Tue 7/156:03 pmIDA - BWI

1 stop9h 07mUnited Airlines

Deal found 6/11

$404

Tue 8/267:00 amBWI - IDA

1 stop10h 23mAlaska Airlines

Wed 8/274:03 pmIDA - BWI

1 stop11h 30mAlaska Airlines

Deal found 6/10

$400

Tue 8/127:15 amBWI - IDA

1 stop9h 04mDelta

Thu 8/216:52 pmIDA - BWI

1 stop9h 08mDelta

Deal found 6/10

$401

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 June 12, 2025 and is based on user searches.

Wed 6/184:22 pmBWI - IDA

1 stop8h 29mUnited Airlines

Sat 6/217:05 amIDA - BWI

1 stop20h 15mUnited Airlines

Deal found 6/11

$758

Sun 6/222:08 pmBWI - IDA

2 stops23h 37mMultiple Airlines

Thu 7/319:47 amIDA - BWI

2 stops42h 18mMultiple Airlines

Deal found 6/10

$492

Sun 6/2211:12 amIAD - IDA

3 stops26h 33mMultiple Airlines

Thu 7/319:47 amIDA - IAD

3 stops47h 56mMultiple Airlines

Deal found 6/10

$600

Sun 6/227:05 amBWI - IDA

1 stop9h 19mDelta

Thu 7/316:52 pmIDA - BWI

1 stop8h 54mDelta

Deal found 6/10

$674

Sun 6/228:20 amIAD - IDA

1 stop16h 31mUnited Airlines

Thu 7/312:38 pmIDA - IAD

1 stop8h 07mUnited Airlines

Deal found 6/10

$706

Sun 6/223:25 pmDCA - IDA

1 stop8h 10mAmerican Airlines

Thu 7/311:47 pmIDA - DCA

1 stop9h 02mAmerican Airlines

Deal found 6/10

$812

Sun 6/225:45 pmDCA - IDA

1 stop7h 10mDelta

Thu 7/316:00 amIDA - DCA

2 stops10h 56mDelta

Deal found 6/10

$876

Sun 6/228:30 amDCA - IDA

2 stops10h 47mUnited Airlines

Thu 7/317:00 amIDA - DCA

2 stops8h 01mUnited Airlines

Deal found 6/10

$1,272

Tue 6/246:58 pmDCA - IDA

2 stops22h 24mAlaska Airlines

Mon 4/64:00 pmIDA - DCA

2 stops26h 41mAlaska Airlines

Deal found 6/10

$715

Thu 6/266:00 amBWI - IDA

2 stops35h 40mMultiple Airlines

Mon 6/304:30 pmIDA - BWI

2 stops35h 13mMultiple Airlines

Deal found 6/11

$383

Tue 7/13:56 pmIAD - IDA

1 stop8h 55mUnited Airlines

Tue 7/154:13 pmIDA - IAD

1 stop6h 32mUnited Airlines

Deal found 6/10

$395

Tue 7/84:20 pmBWI - IDA

1 stop8h 31mUnited Airlines

Tue 7/222:38 pmIDA - BWI

1 stop6h 39mUnited Airlines

Deal found 6/11

$401

One-way flights from Washington, D.C. to Idaho Falls
Search for one-way flight options from Washington, D.C. to Idaho Falls. Find affordable one-way fares based on user searches. Data last updated June 12, 2025.

Thu 7/312:50 pmBWI - IDA

2 stops22h 54mMultiple Airlines

Deal found 6/12

$164

Sat 9/137:00 amIAD - IDA

1 stop10h 23mHawaiian Airlines

Deal found 6/10

$195

Tue 9/21:41 pmDCA - IDA

1 stop9h 37mAmerican Airlines

Deal found 6/12

$196

Tue 9/27:30 amIAD - IDA

1 stop8h 49mDelta

Deal found 6/12

$196

Thu 6/267:00 amDCA - IDA

1 stop12h 04mMultiple Airlines

Deal found 6/10

$197

Mon 9/227:00 amIAD - IDA

1 stop10h 23mAlaska Airlines

Deal found 6/12

$197

Mon 7/285:59 pmDCA - IDA

1 stop6h 30mDelta

Deal found 6/12

$198

Tue 9/27:15 amBWI - IDA

1 stop9h 04mDelta

Deal found 6/12

$201

Thu 7/3111:58 amIAD - IDA

2 stops25h 46mMultiple Airlines

Deal found 6/12

$202

Sat 9/137:00 amBWI - IDA

1 stop10h 23mHawaiian Airlines

Deal found 6/10

$203

Sun 7/276:30 amIAD - IDA

1 stop9h 04mUnited Airlines

Deal found 6/12

$243

Wed 7/306:27 amIAD - IDA

1 stop8h 50mAmerican Airlines

Deal found 6/12

$267

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

BaltimoreIdaho Falls

BWI - IDA

BWIIDA

Baltimore/Washington

Wed 8/13

5:45 am-5:06 pm

3 stops37h 21m

Idaho Falls Fanning Field

Fri 8/22

10:50 pm-12:10 am

1 stop23h 20m

$326

Washington, D.C.Idaho Falls

DCA - IDA

DCAIDA

Washington, D.C. Reagan-National

Tue 8/26

8:00 am-3:23 pm

1 stop9h 23m

Idaho Falls Fanning Field

Wed 8/27

6:13 am-4:49 pm

1 stop8h 36m

$390

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Tue 8/26

7:00 am-3:23 pm

1 stop10h 23m

Idaho Falls Fanning Field

Wed 8/27

4:03 pm-7:32 am

1 stop13h 29m

$390

Washington, D.C.Idaho Falls

DCA - IDA

DCAIDA

Washington, D.C. Reagan-National

Sun 8/24

5:00 am-12:16 pm

1 stop9h 16m

Idaho Falls Fanning Field

Sat 10/25

1:50 pm-11:00 pm

1 stop7h 10m

$393

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Wed 8/13

7:30 am-2:19 pm

1 stop8h 49m

Idaho Falls Fanning Field

Fri 8/22

3:00 pm-11:32 pm

1 stop6h 32m

$393

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Tue 7/1

3:56 pm-10:51 pm

1 stop8h 55m

Idaho Falls Fanning Field

Tue 7/15

4:13 pm-12:45 am

1 stop6h 32m

$395

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Tue 8/12

6:27 am-12:16 pm

1 stop7h 49m

Idaho Falls Fanning Field

Thu 8/21

12:46 pm-11:59 pm

2 stops9h 13m

$398

Washington, D.C.Idaho Falls

DCA - IDA

DCAIDA

Washington, D.C. Reagan-National

Mon 7/28

5:59 pm-10:29 pm

1 stop6h 30m

Idaho Falls Fanning Field

Tue 7/29

6:52 pm-8:36 am

2 stops11h 44m

$400

BaltimoreIdaho Falls

BWI - IDA

BWIIDA

Baltimore/Washington

Tue 8/26

7:00 am-3:23 pm

1 stop10h 23m

Idaho Falls Fanning Field

Wed 8/27

4:03 pm-5:33 am

1 stop11h 30m

$400

BaltimoreIdaho Falls

BWI - IDA

BWIIDA

Baltimore/Washington

Tue 8/12

7:15 am-2:19 pm

1 stop9h 04m

Idaho Falls Fanning Field

Thu 8/21

6:52 pm-6:00 am

1 stop9h 08m

$401

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

Showing 1-10 of 31 results

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.

Cheapflights Insights

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

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 December is currently the most expensive (average of $578). 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 Alaska Airlines, Delta and Hawaiian 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

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 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?
Alaska Airlines, at $390, 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 Delta. Alaska Airlines is currently priced 42% below the average price you’ll pay for this route.
What are the cheapest airlines to fly from Washington, D.C. to Idaho Falls one-way?
The cheapest airlines for a one-way flight from Washington, D.C. to Idaho Falls are Hawaiian Airlines ($195), American Airlines ($196), and Delta ($196).
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 December is currently the most expensive (average of $578). 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
American Airlines	Cheapest$334	Average$721	FlexibilityNo cancel fee	On-time71%
Delta	Cheapest$334	Average$473	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$408	Average$801	FlexibilityNo cancel fee	On-time69%

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$164+ Cheap flights from Washington, D.C. (WAS) to Idaho Falls (IDA)

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 7/31. 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

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

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Popular in

Cheapest in

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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 June 12, 2025.

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 June 12, 2025.

Cheapflights Fare Finder

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

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.

Cheapflights Insights

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

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 June 12, 2025.

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 Alaska Airlines, Delta and Hawaiian 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 cheapest airlines to fly from Washington, D.C. to Idaho Falls one-way?

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?

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

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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 June 12, 2025.