IDA - IAD

$203 Find Cheap Flights from Idaho Falls to Washington Dulles Airport

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 6/16. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Washington, D.C. Dulles Intl Airport

 
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
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Flights Deals

Cheap Flight Deals from Idaho Falls to Dulles Intl (IDA-IAD)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Idaho Falls to Dulles Intl 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.

Recent round-trip flight deals from Idaho Falls to Washington, D.C.

KAYAK's recommended round-trip deals from the most popular airlines that fly from Idaho Falls to Washington, D.C..
Discover the best prices for you by selecting your travel dates on KAYAK.
Hawaiian Airlines Logo
6:00 am - 5:15 pmIDA-IAD
9h 15m1 stop
Hawaiian Airlines Logo
7:00 am - 3:40 pmIAD-IDA
10h 40m1 stop
$344Hawaiian Airlines
Find Deal
Sat, May 24 - Sat, May 31
Delta Logo
12:55 pm - 11:53 pmIDA-IAD
8h 58m1 stop
Delta Logo
1:00 pm - 10:55 pmIAD-IDA
11h 55m2 stops
$366Delta
Find Deal
Sat, May 24 - Sat, May 31
Delta Logo
12:55 pm - 11:35 pmIDA-IAD
8h 40m2 stops
Delta Logo
1:20 pm - 10:55 pmIAD-IDA
11h 35m2 stops
$371Delta
Find Deal
Sat, May 24 - Sat, May 31
United Airlines Logo
4:13 pm - 12:45 amIDA-IAD
6h 32m1 stop
United Airlines Logo
6:30 am - 1:32 pmIAD-IDA
9h 02m1 stop
$395United Airlines
Find Deal
Fri, Aug 8 - Thu, Aug 14
Alaska Airlines Logo
4:20 pm - 7:36 amIDA-IAD
13h 16m1 stop
Alaska Airlines Logo
6:30 am - 3:40 pmIAD-IDA
11h 10m1 stop
$452Alaska Airlines
Find Deal
Sat, May 31 - Thu, Jun 5
Alaska Airlines Logo
6:00 am - 11:59 pmIDA-IAD
15h 59m1 stop
Alaska Airlines Logo
7:25 pm - 10:34 pmIAD-IDA
29h 09m2 stops
$457Alaska Airlines
Find Deal
Tue, May 27 - Mon, Jun 2
Alaska Airlines Logo
6:00 am - 5:55 amIDA-IAD
21h 55m2 stops
Alaska Airlines Logo
7:25 pm - 10:34 pmIAD-IDA
29h 09m2 stops
$462Alaska Airlines
Find Deal
Tue, May 27 - Mon, Jun 2
United Airlines Logo
2:25 pm - 10:50 pmIDA-IAD
6h 25m1 stop
United Airlines Logo
5:36 pm - 10:51 pmIAD-IDA
7h 15m1 stop
$468United Airlines
Find Deal
Tue, May 27 - Mon, Jun 2
American Airlines Logo
6:51 am - 7:36 pmIDA-IAD
10h 45m2 stops
American Airlines Logo
6:27 am - 1:17 pmIAD-IDA
8h 50m1 stop
$636American Airlines
Find Deal
Tue, Jul 22 - Thu, Jul 24
American Airlines Logo
7:00 am - 12:02 amIDA-IAD
15h 02m2 stops
American Airlines Logo
8:14 pm - 1:21 pmIAD-IDA
19h 07m2 stops
$803American Airlines
Find Deal
Sat, May 31 - Thu, Jun 5
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KAYAK's insights & trends for Idaho Falls to Washington, D.C. flights

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 Dulles Airport?

The average price of all round-trip flights from Idaho Falls to Washington, D.C. Dulles Intl Airport clicked on KAYAK for each day over the last 12 months.

For Idaho Falls to Washington Dulles Airport, Wednesday is the cheapest day to fly on average and Saturday is the most expensive. Flying from Washington Dulles Airport back to Idaho Falls, the best deals are generally found on Saturday, with Monday being the most expensive.

Good to know

Low seasonSeptember
High seasonDecember
Cheapest flight$203
Best time to beat the crowds with an average 47% drop in price.
Most popular time to fly with an average 8% increase in price.
Flight from Idaho Falls to Washington Dulles 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 Idaho Falls to Washington Dulles Airport flights

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

    In the last 3 days, the lowest price for a flight from Idaho Falls to Washington, D.C. Dulles Intl Airport was $203 for a one-way ticket and $344 for a round-trip.

  • Do I need a passport to fly between Idaho Falls and Washington Dulles Airport?

    A passport is not required to fly from Idaho Falls to Washington Dulles Airport.

  • Which aircraft models fly most regularly from Idaho Falls to Washington Dulles Airport?

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

  • Which airline alliances offer flights from Idaho Falls to Washington Dulles Airport?

    SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between Idaho Falls and Washington Dulles Airport, 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 $426 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 $694 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Idaho Falls to Washington Dulles Airport?

    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 Dulles Airport.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington Dulles Airport 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 Dulles Airport?

    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 Dulles Airport with an airline and back to Idaho Falls with another airline. Booking your flights between Idaho Falls and IAD can sometimes prove cheaper using this method.

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

    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 Dulles Airport from Idaho Falls up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top airlines flying 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 7934 reviews
7.9Comfort
8.2Boarding
7.9Entertainment
7.3Food
8.5Crew
Airline reviews

Delta is my preferred airline. I've traveled with them for years. On time in most cases, good communication, easy to use app. Most planes are pretty nice. I was on a CRJ 700/900 however, which was pretty badly aged inside and needed a refresh. No infotainment, unreliable wifi, best to download before boarding or bring a book. Food choices are really just snacks on this flight, nice variety but about what you'd expect. Great staff and prompt in departure and early arrival too. Overall quite satisfied.

8.0 ExcellentFredrick, Apr 2025GSO - DTW
Read more Delta reviews

Delta is my preferred airline. I've traveled with them for years. On time in most cases, good communication, easy to use app. Most planes are pretty nice. I was on a CRJ 700/900 however, which was pretty badly aged inside and needed a refresh. No infotainment, unreliable wifi, best to download before boarding or bring a book. Food choices are really just snacks on this flight, nice variety but about what you'd expect. Great staff and prompt in departure and early arrival too. Overall quite satisfied.

Crew was friendly Love the entertainment in the seat head rest.

Delta flight was on time, seats were comfortable, and crew was nice.

This had nothing to do with Delta… The flights were on time and flawless. The service was excellent. We purchased seats in (aisle/middle) comfort plus since this was a cross country flight. Unfortunately, the woman seated at the window was 300+ pounds and, as might be expected, covered up about a third of the middle seat also. there was absolutely nothing that Delta could have done about that… I just don’t know what the answer should be. If you purchase a seat, you should should be able to use the entire seat and not just the portion that someone else is not sitting/oozing in. Disappointing…there should be something that could be done….I'm just not sure what solution could be.

Delayed take-off. Very small plane so very scary with lots of bumps during the flight. Would never fly Delta on short flights in small 80 seaters plane again! Felt relieved when landed.

The worst part was I was NOT allowed in the lounge even though I was holding a first class ticket and have a premium American Express card. I have flown Business or First Class with many airlines. Delta is the ONLY one who does not extend this courtesy to anyone except people who hold the very expensive American Express card. As a result, I won’t fly Delta if I have any other choice.

A little bumpy ride . No food was being provided due the the turbulence. That was ok it was a short flight to my standards.

Simply outstanding. Their new lounge for Delta One customers is a cut above the rest.

The Dekta Rep that checked us in was great. She's very personable, pleasant, and can tell she enjoys her job.

The plane was old with small storage areas that had problems closing/latching and not enough storage for everyone, and worn, damaged seats. Service was great but feel a little unsafe on such well used planes.

Mostly the experience was good except for the flight changes made by UA which meant longer layover in DC

Terrible. First of all we were delayed 4 3/4 hours departing Honolulu. As we had to leave our condo and the rental car had to be returned we had to go to the airport. Even though we had a business class boarding pass to Washington, since we did not have business class to Montreal we could not access the lounge without paying a $59 fee each. This does not make sense to us. Since we could not meet our original connection United booked us to Montreal via New York LaGuardia on Air Canada. In Washington a further delay got us into LaGuardia too late to make our connection to Montreal so we were booked on another Air Canada flight 3 hours later. We were originally scheduled to arrive in Montreal at 10:40 and arrived at 19:55. A totally exhausting day, United did not offer a meal voucher or any type of compensation. Air Canada did give us a digital meal voucher. The food in United business class is poor among all meals offered. The pods look nice but are not that confortable. Overall would not fly on United again.

Change cabin crew assisting business class. Not taking care, ignoring requests and calls. Never had such an experience in business class.

United left one of our bags back in SFO but that’s not my real complaint. The complaint is how it all went down. So we checked in the day before online and were told we could use the quick drop for luggage. So the next day I used baggage quick drop curbside at SFO. The agent mistakenly didn't tag my bag as he put my bag on the conveyor belt untagged. We immediately alerted him he had not tagged the bag. I walked with him to the baggage service office to find my bag and tag it. We waited outside the office for 10 mins. He came out and said everything was ok and the bag was going to be tagged and on my flight. We received a text that one of our bags was on the flight but the other was not. I alerted my first class flight attendant immediately upon boarding the flight. She was helpful and said she’d get it sorted out right away. She called over the gate agent. The gate agent used my bag number and looked over information on her device. She said my bag was on the flight. The flight attendant was standing with her, looking at the device, and also said “yep it’s on the flight”. During the flight the flight attendant made reference to how reassuring it must feel knowing the bag was on the flight. Upon arriving to IAD we received a text that my bag was not on my flight. The text said my bag would arrive to my final destination LIS 24 hrs late. I understand that mistakes happen. I was totally ok with my bag mistakenly not getting tagged at the quick drop. I was fine with walking down to baggage services to tag my bag. But, what I am not ok with is that the United staff said they fixed the mistake two different times, assuring me twice that my bag would be/was on the plane…and it wasn’t. I expected better attention by the employees, for them to do what they said they were going to do. We also spent extra money to upgrade our seats to first class, including the entire return leg from Lisbon to San Francisco because we wanted a smoother and more relaxing travel experience. Our money was not well spent. We will not be using United for travel going forward.

The flight was delayed, it took longer than anticipated because of weather, and they broke my luggage.

Horrifying! And I am almost 2 million miles with United. Late by 3 1/2 hours. Worst: after two hours on the plane waiting, they decided that one of the tires had been damaged and then decided to change it. Another hour and a half to change the tire!!!!! NO EXCUSE FOR THIS. The crew didn't even offer a glass of water until we had been on the plane for FIVE hours. This is the worst airline in the world. I'm simply stuck because they fly on the only routes I need.

Gate got changed about 4 times. Very confusing and very crowded. If you don’t have wifi to help get updates, you can be in deep trouble.

Attendants zipped through cabin so fast hardly anyone got the water they told us we could have in the short flight. Nothing else was offered.

Sucks ! All three flights I was on this trip were delayed.

The flight attendants were unhelpful. It was a packed flight, and usually a flight attendant would help find a spot in the bin for your carry on or shift things around. Neither made any effort to do so. Also, I had to then check my bag. I was told it would be on the carousel in YYZ, but it came up on the jetway. So lucky I saw others standing around for their bags. I would have walked straight past this and on to the carousel. They could have at least told me that they had given me wrong information. Very unsatisfactory.

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

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