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IDA - WAS

Find cheap flights from Idaho Falls to Washington, D.C. from $275

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Idaho Falls to Washington, D.C. departing on 6/24. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
mar. 6/4
mar. 6/11

Search hundreds of travel sites at once for deals on flights to Washington, D.C.

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Idaho Falls to Washington, D.C., as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Idaho Falls to Washington, D.C., as well as popular online travel agencies
In the last 7 days travelers have searched 43,369,418 times on KAYAK, and here is why:

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Cheap flight deals from Idaho Falls to Washington, D.C. (IDA-WAS)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Idaho Falls to Washington, D.C. that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
7:00 pm - 9:19 amIDA-IAD
12h 19m2 stops
7:15 am - 12:23 pmIAD-IDA
7h 08m1 stop
$525Delta
Find Deal
jue., jul. 11 - dom., jul. 14
7:00 pm - 9:15 amIDA-IAD
12h 15m2 stops
6:10 am - 12:23 pmIAD-IDA
8h 13m2 stops
$530Delta
Find Deal
jue., jul. 11 - dom., jul. 14
7:00 pm - 8:55 amIDA-DCA
11h 55m2 stops
12:35 pm - 10:08 pmDCA-IDA
11h 33m2 stops
$530Delta
Find Deal
mar., jul. 16 - mar., jul. 23
5:55 pm - 4:58 amIDA-BWI
9h 03m1 stop
4:10 pm - 9:23 pmBWI-IDA
7h 13m1 stop
$588United Airlines
Find Deal
mié., ago. 21 - jue., ago. 29
7:00 pm - 10:27 amIDA-BWI
13h 27m2 stops
7:20 am - 12:18 pmBWI-IDA
6h 58m1 stop
$593Delta
Find Deal
mié., ago. 21 - jue., ago. 29
10:45 am - 5:10 amIDA-BWI
16h 25m1 stop
6:25 am - 9:08 pmBWI-IDA
16h 43m2 stops
$601United Airlines
Find Deal
sáb., jun. 1 - sáb., jun. 8
1:43 pm - 11:24 pmIDA-IAD
7h 41m1 stop
6:00 am - 1:13 pmIAD-IDA
9h 13m1 stop
$618American Airlines
Find Deal
jue., jun. 6 - dom., jun. 9
1:43 pm - 11:27 pmIDA-BWI
7h 44m1 stop
1:30 pm - 9:43 pmBWI-IDA
10h 13m1 stop
$618American Airlines
Find Deal
vie., jun. 7 - dom., jun. 9
6:00 am - 5:40 amIDA-IAD
21h 40m2 stops
7:02 am - 11:57 pmIAD-IDA
18h 55m1 stop
$628Alaska Airlines
Find Deal
mar., jul. 16 - mar., jul. 23
6:00 am - 11:59 pmIDA-IAD
15h 59m1 stop
7:00 am - 11:57 pmIAD-IDA
18h 57m1 stop
$648Alaska Airlines
Find Deal
vie., jun. 7 - dom., jun. 9

Flights from Idaho Falls to Washington, D.C. - Travel Insights & Trends

Get data-powered insights and trends into flights from Idaho Falls to Washington, D.C. to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Idaho Falls to Washington, D.C.?

The average price of all flights from Idaho Falls to Washington, D.C. clicked on KAYAK for each day over the last 12 months.
When flying from Idaho Falls to Washington, D.C., you should consider leaving on a Thursday and avoid Fridays if you are looking for the best rates. For your return to Idaho Falls, you’ll find the best rates on Saturdays and the most expensive ones on Sundays.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Idaho Falls to Washington, D.C., removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Idaho Falls to Washington, D.C. is February, where tickets cost $483 on average. On the other hand, the most expensive months are October and July, where the average cost of tickets is $835 and $813 respectively.

Which airlines provide the cheapest flights from Idaho Falls to Washington, D.C.?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 72 hours, the cheapest one-way ticket from Idaho Falls to Washington, D.C. found on KAYAK was with Delta for $275. Delta proposed a round-trip connection from $525 and United Airlines from $588.

Good to know

Low season

January

High season

August

Cheapest flight

$275
Best time to beat the crowds with an average 26% drop in price.
Most popular time to fly with an average 3% increase in price.
Flight from Idaho Falls to Reagan Washington National Airport

When to book flights from Idaho Falls to Washington, D.C.

Are your dates flexible? Find out the best times to travel from Idaho Falls to Washington, D.C. based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Idaho Falls to Washington, D.C.

  • What is the cheapest flight from Idaho Falls to Washington, D.C.?

    In the last 3 days, the lowest price for a flight from Idaho Falls to Washington, D.C. was $275 for a one-way ticket and $525 for a round-trip.

  • Do I need a passport to fly between Idaho Falls and Washington, D.C.?

    No, a passport isn't needed to fly from Idaho Falls to Washington, D.C.. However, local authorities might ask for an official ID.

  • Which airports will I be using when flying from Idaho Falls to Washington, D.C.?

    Idaho Falls is served by only 1 airport and there are 2 airports in Washington, D.C.. You will leave Idaho Falls from Idaho Falls Fanning Field and you will be arriving in Washington, D.C. at one of these airports: Washington, D.C. Reagan-National or Washington, D.C. Dulles Intl.

  • Which aircraft models fly most regularly from Idaho Falls to Washington, D.C.?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Idaho Falls to Washington, D.C.?

    SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between Idaho Falls and Washington, D.C., with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from Idaho Falls to Washington, D.C., Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Idaho Falls to Washington, D.C. are Delta and United Airlines. With an average price for the route of $678 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $723 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Idaho Falls to Washington, D.C.?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Idaho Falls to Washington, D.C..

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Idaho Falls to Washington, D.C.?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington, D.C. from Idaho Falls is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Idaho Falls to Washington, D.C.?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Washington, D.C. with an airline and back to Idaho Falls with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Idaho Falls to Washington, D.C.?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Washington, D.C. from Idaho Falls up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

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

 
See real verified KAYAK customer reviews for airlines flying from Idaho Falls to Washington, D.C.. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Idaho Falls to Washington, D.C.? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
DeltaOverall score based on 10838 reviews
8.2Boarding
8.6Crew
7.4Food
7.9Comfort
8.0Entertainment
Airline reviews

It was a good experience except when boarding a female flight attendant did not go out of her way to assist my teenage daughters in finding space for their carry-ons after their compartments were full.

10.0 ExcellentBranton, May 2024AVL - ATL
Read more about Delta reviews

It was a good experience except when boarding a female flight attendant did not go out of her way to assist my teenage daughters in finding space for their carry-ons after their compartments were full.

On time departure, smooth trip, flight attendant told through passengers the gate we would arrive at and the gate our outbound flight was departing from. Early arrival

Checking in at the airport the agent only booked the first keg of my trip and had my checked luggage going to the airport with a layover! Never was issued a boarding pass for the second leg or received sticker fir my checked bag. All was well in the end! Delta agents helped to resolve the situation!!!

Delayed due to an ill passenger after loading. Not preventable on Delta's part. Was in first class. The seats are becoming worn and detaching from their velcro attachments. Only got snacks on flight. The attendant was not the friendliest.

I would fly again the whole experience was great. The only feed back I can give that they don't do that American Airlines does is the crew there is more humorous with boarding and thank their passengers. It makes it more fun to fly with them. I would however fly Delta again.

From Atlanta to Cabo I would have hoped on a plane that size I would have been able to breathe and wiggle my feet a little! The leg room in that plane is non existent and I am only 5”4’. And the air vent either wasn’t working very well or just could not blow air from the ceiling to the seat area as I was suffocating through the entire flight! And please don’t say I would have been more comfortable in first class because I cannot afford those rates and have always travelled Main Cabin without issues !

The pilots were good. Disappointing when planes don't have electrical ports

I liked the piloting of the aircraft. Very disappointed about lack of electrical ports. Also, although a short flight. there was enough time to hand out snacks to comfort + seats as was done for first class.

I had a wonderful experience flying with delta. The gentleman taking care of us on our flight was so nice, accommodating, and attentive. He always was smiling and giving pins to the kids which made me smile. The flight was quick too and without turbulence. Thank you for the great flying experience.

Delta is one of the best airlines I have flown

All flights were on time and boarding was issue free

Water service would be great. The way they board is terrible. Slow passengers first😂😂 They need to smart up a bit

It got me where I needed it to; not much more. It had no competition so that was why I chose it.

Plane didn’t even make it off the ground. We all had to get off and walk to a different terminal (lots of confusion) to get on a different plane. Landed fairly late, connections missed.

Crowded flight, but upbeat and kind crew. Pilot greeted us at door, flight attendant thanked a number of “special” passengers for their business, another addressed an eight-year old boy as “young man.” United obviously trying to up their game, but though all of that is nice and notable, flying still feels like moving along a human assembly line, being herded into one small space after another (boarding areas with too few seats, planes with limited personal space, shuttles (IAD) packed too full.

It was ok until we got to DC and I wanted to use my United Club pass and the snobbish receptionist said that they don’t take one pass. It took me everything itch of patience not to tell her off

Food choice was poor and we had to buy on board snacks.

We were offer chocolate cookies , not everyone eat chocolate. Thank you

Lost luggage again. Our second trip to Mykonos, and 2nd time no luggage.

Flight was well orchestrated, made up time despite circling a bit all good on United. Travelers can just be so into themselves that common courtesy has gone out window for some, but that’s not on United.

The Flight attendant had an attitude and didn't allow anyone any time to prepare for landing despite being absent throughout the entire trip

The flight was great until towards the end when the flight attendant read an excessively long commercial for purchasing an american airlines credit card. The worst part is that we are doing a lot of traveling this year so i was actually interested in getting the credit card, but I was so annoyed with the long commercial that I completely dismissed the flight attendant bringing around the information. Next time, keep the sales pitch to 10 seconds and then pass around the brochures!!

Nice aircraft. Plane was PACKED full and distance between seats was tight. Had it been more than a two hour flight it would not have been tolerable. I had much more knee space on the JetBlue flight I went out on.

New ridiculous policy by american destroyed my allegiance to american. As a million miler with american, I expected it would be easy to get on an earlier flight when I got to airport earlier than expected, and save a five hour layover. WRONG. The online app would not let me switch flights, So I called, and was promised a call back in 90 minutes. HAH! The customer service desk at DCA said “we no longer have access to changing a flight on our screens. If the app couldn’t do it, I should send a letter to American, but there’s nothing else possible!”

I am tired of being nickel and dimed for seat location, checked luggage and carry on bags. That is why i rarely fly anymore.

It was right on time and crew were very courteous

Great flight. Boarding was efficient and quick. On time departure and smooth flight. Flight arrived early at destination. Good experience.

Literally the worst experience ever and I had my service dog with me. Flight was supposed to leave at 1:51 PM but the plane arrived late. They boarded us around 3 PM and kept us on the plane for an hour saying that due to weather conditions in Miami, we could not takeoff yet. After waiting for an hour, they deplaned. And then they will not give us our bags back that we could just leave and schedule for another flight. Every hour they kept updating saying we have to wait another hour without any explanation as to what was going on. Eventually, I went to customer service to change my ticket, but by the time I made it to the front of the line, they started boarding my flight again. And then when we got onto the flight, they said there were two flight attendants That were past their shift. They kept us on the plane for about another 40 minutes until they told us they had no other flight attendance and had to deplane again. Then I gave us hotel vouchers and told us we would be on a flight at 6 AM the next day. At this point it is about 9 PM. I get to the hotel with my dog, who hasn’t been able to go potty for about eight hours. When I arrived at the hotel, I got a text alert saying my flight has been canceled at 6 AM and they moved past to 5 AM, however the hotel shuttle doesn’t leave early enough to make it to the airport for 5 AM flight. So me and some other passengers got a cab after about three hours of sleep to get back to the airport. This was the worst experience ever.

Their computers were down upon arrival to the airport. They were unable to figure out how to board us. We were delayed over an hour and a half.

Delay. Flight was delayed in Washington.knew that connection was impossible as not enough time to switch terminals. The steward would not let me stay the night. So forced to Dallas.late night, after 10pm.hotel checkin was one hour. Passengers lined up only one girl to checkin at comfort inn. No food availability at that time. Had to leave early at 6:30 am to catch a flight at 8:45. Stressfull.

Book cheap flights from Idaho Falls to Washington, D.C.

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Idaho Falls to Washington, D.C. found on KAYAK in the last 72 hours.
6/24lun.
2 stopsDelta
11h 55mIDA-DCA
$275
9/21sáb.
1 stopAlaska Airlines
15h 53mIDA-IAD
$283
9/21sáb.
1 stopAlaska Airlines
9h 47mIDA-BWI
$304
9/21sáb.
2 stopsUnited Airlines
11h 52mIDA-DCA
$318
9/21sáb.
1 stopAlaska Airlines
8h 42mIDA-DCA
$364
6/24lun.
1 stopAmerican Airlines
9h 09mIDA-DCA
$391
7/7dom.
1 stopDelta
8h 50mIDA-BWI
$406
9/21sáb.
2 stopsUnited Airlines
15h 10mIDA-IAD
$408
9/21sáb.
2 stopsDelta
9h 40mIDA-BWI
$454
7/7dom.
2 stopsUnited Airlines
44h 05mIDA-BWI
$546

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Last minute flights from Idaho Falls to Washington, D.C.

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Idaho Falls to Washington, D.C. that are departing in the next 10 days.
5/6lun.
multi-stopAmerican Airlines
8h 22mIDA-IAD
5/7mar.
multi-stopAmerican Airlines
7h 54mIAD-IDA
$854
5/6lun.
multi-stopAmerican Airlines
8h 10mIDA-BWI
5/7mar.
multi-stopAmerican Airlines
7h 56mBWI-IDA
$854
5/6lun.
multi-stopAmerican Airlines
7h 45mIDA-DCA
5/7mar.
multi-stopAmerican Airlines
10h 22mDCA-IDA
$854
5/6lun.
multi-stopAmerican Airlines
8h 22mIDA-IAD
5/7mar.
multi-stopAmerican Airlines
9h 42mIAD-IDA
$857
5/6lun.
multi-stopAmerican Airlines
8h 10mIDA-BWI
5/7mar.
multi-stopAmerican Airlines
15h 14mBWI-IDA
$857
5/6lun.
multi-stopAmerican Airlines
7h 45mIDA-DCA
5/7mar.
multi-stopAmerican Airlines
13h 14mDCA-IDA
$857
5/6lun.
multi-stopAmerican Airlines
9h 13mIDA-DCA
5/7mar.
multi-stopAmerican Airlines
15h 09mDCA-IDA
$862
5/6lun.
multi-stopDelta
11h 59mIDA-BWI
5/7mar.
multi-stopDelta
9h 54mBWI-IDA
$1,118
5/6lun.
multi-stopUnited Airlines
8h 22mIDA-IAD
5/7mar.
multi-stopUnited Airlines
14h 33mIAD-IDA
$1,238
5/6lun.
multi-stopDelta
12h 09mIDA-IAD
5/7mar.
multi-stopDelta
10h 34mIAD-IDA
$1,306

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Idaho Falls - Washington, D.C. Flights

Departure:

Idaho Falls (IDA)United States

Return flight deals:

Washington, D.C. - Idaho Falls

Cabin classes: