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IAD - IDA

Find cheap flights from Washington Dulles Airport to Idaho Falls from $272

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dulles Intl to Idaho Falls departing on 5/29. 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
Fri 6/7
Fri 6/14

Search hundreds of travel sites at once for deals on flights to Idaho Falls

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Idaho Falls, 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 Washington, D.C. to Idaho Falls, as well as popular online travel agencies
In the last 7 days travelers have searched 43,968,530 times on KAYAK, and here is why:

Save 21% or moreCompare multiple travel sites with one search.

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Filter your dealsChoose cabin class, free Wi-Fi and more.

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Cheap flight deals from Dulles Intl to Idaho Falls (IAD-IDA)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Dulles Intl to Idaho Falls 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
6:10 am - 12:23 pmIAD-IDA
8h 13m2 stops
7:00 pm - 9:19 amIDA-IAD
12h 19m2 stops
$540Delta
Find Deal
Sun, Jul 14 - Thu, Jul 18
7:15 am - 12:28 pmIAD-IDA
7h 13m1 stop
7:00 pm - 9:07 amIDA-IAD
12h 07m2 stops
$543Delta
Find Deal
Wed, May 29 - Wed, Jun 5
7:15 am - 12:23 pmIAD-IDA
7h 08m1 stop
7:00 pm - 9:15 amIDA-IAD
12h 15m2 stops
$545Delta
Find Deal
Sun, Jul 14 - Thu, Jul 18
6:00 am - 12:28 pmIAD-IDA
8h 28m2 stops
7:00 pm - 9:07 amIDA-IAD
12h 07m2 stops
$548Delta
Find Deal
Wed, May 29 - Wed, Jun 5
10:08 pm - 9:40 amIAD-IDA
13h 32m1 stop
2:30 pm - 5:25 amIDA-IAD
12h 55m1 stop
$560United Airlines
Find Deal
Wed, May 29 - Wed, Jun 5
5:36 pm - 9:35 amIAD-IDA
17h 59m1 stop
5:58 pm - 11:25 amIDA-IAD
15h 27m1 stop
$586United Airlines
Find Deal
Tue, Aug 13 - Sun, Aug 18
1:10 pm - 10:04 pmIAD-IDA
10h 54m2 stops
1:41 pm - 11:22 pmIDA-IAD
7h 41m1 stop
$595American Airlines
Find Deal
Fri, Aug 9 - Thu, Aug 15
5:29 pm - 10:04 pmIAD-IDA
30h 35m1 stop
6:31 am - 11:22 pmIDA-IAD
14h 51m1 stop
$646American Airlines
Find Deal
Fri, Aug 9 - Thu, Aug 15
4:16 pm - 11:57 pmIAD-IDA
33h 41m2 stops
6:00 am - 7:35 amIDA-IAD
23h 35m1 stop
$663Alaska Airlines
Find Deal
Wed, Jul 3 - Wed, Jul 10
4:16 pm - 11:57 pmIAD-IDA
33h 41m2 stops
6:00 am - 5:40 amIDA-IAD
21h 40m2 stops
$729Alaska Airlines
Find Deal
Wed, Jul 3 - Wed, Jul 10

Flights from Dulles Intl to Idaho Falls - Travel Insights & Trends

Get data-powered insights and trends into flights from Dulles Intl to Idaho Falls 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 Washington Dulles Airport to Idaho Falls?

The average price of all flights from Washington, D.C. Dulles Intl Airport to Idaho Falls clicked on KAYAK for each day over the last 12 months.
If your flying dates are flexible, you should consider flying to Idaho Falls on a Saturday, as we generally find the cheapest rates on that day for this route. On the other hand, Monday is the most expensive day to fly from Washington Dulles Airport to Idaho Falls. For your return ticket, we recommend flying on a Saturday and avoiding Sundays for the best deals.

Which airlines provide the cheapest flights from Washington Dulles Airport to Idaho Falls?

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 Washington Dulles Airport to Idaho Falls found on KAYAK was with Alaska Airlines for $272. Delta proposed a round-trip connection from $540 and United Airlines from $560.

Good to know

High season

October

Cheapest flight

$272
Most popular time to fly with an average 7% increase in price.
Flight from Washington Dulles Airport to Idaho Falls

When to book flights from Dulles Intl to Idaho Falls

Are your dates flexible? Find out the best times to travel from Dulles Intl to Idaho Falls 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 Washington Dulles Airport to Idaho Falls flights

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

    In the last 3 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Idaho Falls was $272 for a one-way ticket and $540 for a round-trip.

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

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

  • Which airports will I be using when flying from Washington Dulles Airport to Idaho Falls?

    When flying out of Washington Dulles Airport you will be using Washington, D.C. Dulles Intl. You will be landing at Idaho Falls, also known as Idaho Falls Fanning Field.

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

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

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

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

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

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Idaho Falls are Delta and Alaska Airlines. With an average price for the route of $667 and an overall rating of 8.0, Delta is the most popular choice. Alaska Airlines is also a great choice for the route, with an average price of $500 and an overall rating of 8.0.

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

    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 Washington Dulles Airport to Idaho Falls.

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

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

    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 Idaho Falls with an airline and back to Washington Dulles Airport with another airline. Booking your flights between Washington Dulles Airport and IDA 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 Washington Dulles Airport to Idaho Falls?

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

See more FAQs

Top 4 airlines serving from Dulles Intl to Idaho Falls

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Idaho Falls. 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 Dulles Intl to Idaho Falls? 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
Alaska AirlinesOverall score based on 9141 reviews
8.6Crew
7.3Entertainment
7.3Food
8.2Boarding
7.9Comfort
Airline reviews

The flight was decent again if there was a place that you could put crying children that would be great. Or maybe make a rule against allowing infants on the plane.

6.0 GoodAnonymous, May 2024SEA - HNL
Read more about Alaska Airlines reviews

The flight was decent again if there was a place that you could put crying children that would be great. Or maybe make a rule against allowing infants on the plane.

The flight was great. The pilot was great. It was really annoying that the staff had facemasks on. Hard to hear what they’re saying when a mask is covering their mouth. I enjoyed the flight, but there was a crying baby in front of me. You guys should offer flights baby free. I would be very into that me and the person next to me discussed how they should make free flights for all of us that don’t have kids. I wouldn’t mind paying extra to not have to deal with the smell of a dirty diaper or screaming of a child. Also, if they had a separate room, the babies could be sent to the back with a curtain or something muddle the horrible sounds.

Smooth. Courteous. Fun. One problem: the wheels on my checked roller back were broken when I picked up baggage at destination. Must have happened during flight baggage handling but I don’t know where.

Staff very helpful and friendly, in flight entertainment poor. Flight left late and thus arrived 20 minutes late to final destination.

Ground crew was great in Austin, flight crew left a lot to be desired. Not particularly friendly, helpful or nice.

Everything was fine -- on time, clear, clean. I don't want to pay extra for in-flight wi-fi

First time flying with Alaska and the staff were All professional from checkin to departure! I do plan to book more flights with Alaska. Thanks

The flight was delayed because the pilots had not arrived on their previous flight yet. The flight was 100% full so it was pretty crowded. I miss having the screens on the back of the seats. It would be great if the Alaska planes had the clip so you can put your phone or tablet on the back of the seat in front of you to not strain your neck. Everything else was very smooth.

Boarded the plain and had to wait 1 hour for crew Captain to arrive from another flight

It was fine since it ensure we went to our destination in time.

The gate area was incredibly short staffed, with one representative manning 4-5 flights, which caused a 3 hr delay in boarding even though the plane was all ready to leave. Other flights also were delayed because of this. The flight crew was awesome and I feel bad for the only gate worker on call, but Delta needs to hire more employees.

Very frustrated with boarding gate crew. She announced the plane was small and they would be limiting us to one item to carry on. Not a problem for me as I understand the tiny planes have limited space!! Not the case here! It was a rather large plane and had plenty of room for bags! So because I don’t want to be one of “those people” who ignores the request to check a carry on I did so asking if I would be able to pick it up at the bottom of the ramp on arrival in Knoxville to which she responded “yes”! Then I watched as every other passenger held onto their 2 items and boarded!! Then when we arrived in Knoxville our 2 carry ons had been put with all the other luggage and we had to go to baggage pick up and wait for all the big checked bags to come off the carousel! So she lied!! Frustrating. Next time I won’t be so nice!

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.

Should have video screens Plane audio was poor and without wired connection hard to understand crew. Should serve more than just cups of water and pretzels on six hour flight. Did not see crew rest of flight. Fix charging sockets to retain charging blocks.

they made me check my carryon. There was space in the overhead bins.

The plane was delayed 2 hours. The wifi did not work. The seat in first class was not comfortable because the bottom felt like it lost all of its padding. And I did not like when the flight attendant made me wait at my seat to use the bathroom and didn't tell me why. If there were too many people using the 1st Class bathroom, she should have told me to go in the back, coach bathrooms. I guess I have to feel fortunate that they found 2 local pilots to still fly the plane tonight after the original pilots ended up at an airport 60 miles away due to high winds.

The crew were really great, but the 4 hour delay in small chunks was the worst.

Just a crappy airline. The same every time. You feel you are a cow on a farm. You are being being whipped and pulled.

Wasn’t very crowded. Seamless processes. No issues traveling with two little kids.

My interaction with the flight attendent Eve was horrible. I was seated in 3F and was blown away watching her repeatedly skip me as she took other customer orders for lunch...she took the customer next to me but skipped me, then took everyone's order around me (in front of and behind me) . After she had taken every customer's orders to include those behind me, she came to me and said we are out of everything except one last item. I was mortified, in that, I am a 1k flyer, had pre-ordered AND as an African American could only assume why she repeatedly skipped me...mortified. no words

The Flight was good, pilot seemed very skillful. My wheel chair sister who could barely walk was allotted the second last seat in the aircraft, with great difficulty she managed to reach on her seat, as she required attendance we were given separate seat, even on request no one cared, so much so there were single passengers who were given twin seats. May not be taken as complaint but a reminder to the checkin staff to keep in mind in future the allottment of wheel chair passengers seats.

Almost 2 hour delay in boarding with all standing ready to board at original time. No explanation given.

787-9 Transcon from IAD-LAX FYI no meals in premium plus, not considered Premium - seats are wonderful https://www.united.com/ual/en/us/fly/travel/inflight/premium-services.html Horrible handling of delayed flight

Overall the flights pretty good. The snacks we’re good and they were plenty of them. Both boarding and deplaning went quickly.

Delayed abs delayed Gate crew giving poor info - we are definitely leaving at —- Ultimately to cancel flight after 4+ hours of delays Just cancel it earlier

The flight was scheduled to depart DCA at 12:30 pm but was delayed twice on the ground so that we were finally scheduled to depart at around 4:00 pm. Once we boarded, it was announced that takeoff would be delayed again to fix a hydraulic problem which delayed our eventual takeoff until around 5:00 pm. Once we departed, it was a smooth flight back to ORD. We did not get any explanation about what caused the original significant delay. In my experience, this happens frequently with AA.

Lots of weather delays that were poorly communicated and managed. I get there are weather delays but they didn’t make it clear what was happening or comfortable on the plane

Everything was on time; the flight attendants and the gate personnel were very pleasant and helpful.

Our second leg to Jackson WY was unable to land due to weather. We were flown back to Dallas after stopping in SLC. We were given hotel rooms and vouchers. We were told that we would be back on the same plane in the morning. Instead we were given a different flight with different seats. Not a good experience. No one knew what was going on.

Perfect flight. On time departure and early arrival. Smooth flight.

Awful! The flight was delayed and we sat on the plane in DCA for an hour because fuel was out in the wrong part of the plane and would not be accessible during flight. So the plane had to be refueled in correct tank. They also allowed someone to get off of the plane. This delayed my six hour flight by an hour and made me miss my connecting flight. I ran to new gate and American Airlines agents new about the delay and even knew that I was trying to make the connection. They knew thru communication with my friend while in flight that I was in the airport and running to the new gate and they still closed the gate and refused to let me on the new flight despite plane still being at the gate. It was horrible and I had to be rebooked on a flight for 24 hours later. This has been a nightmare and if American Airlines can cause customers to be delayed and then have zero empathy as having an on time flight was more important to them than helping a customer who was delayed by no fault of her own, then it's seems that it's not a company that I want to continue to give my loyalty to. I'm so disgusted.

Help was available but timing was bad in my case

It was a horrible snow storm, but updates were inconsistent and the app never displayed a remotely accurate time or gate until very close to boarding.

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

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Washington, D.C. to Idaho Falls found on KAYAK in the last 72 hours.
5/29Wed
1 stopAlaska Airlines
18h 57mIAD-IDA
$272
7/23Tue
1 stopUnited Airlines
23h 22mIAD-IDA
$279
5/29Wed
2 stopsUnited Airlines
14h 33mIAD-IDA
$284
7/23Tue
2 stopsDelta
10h 53mIAD-IDA
$354
5/20Mon
1 stopUnited Airlines
13h 43mIAD-IDA
$394
5/24Fri
1 stopUnited Airlines
21h 07mIAD-IDA
$414
5/24Fri
2 stopsUnited Airlines
21h 03mIAD-IDA
$429
5/20Mon
2 stopsUnited Airlines
25h 31mIAD-IDA
$468
7/23Tue
3 stopsUnited Airlines
12h 47mIAD-IDA
$562
5/24Fri
3 stopsUnited Airlines
14h 48mIAD-IDA
$907

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Last minute flights from Dulles Intl to Idaho Falls

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 Washington, D.C. to Idaho Falls that are departing in the next 10 days.
5/12Sun
multi-stopAmerican Airlines
7h 54mIAD-IDA
5/14Tue
multi-stopAmerican Airlines
8h 22mIDA-IAD
$806
5/12Sun
multi-stopAmerican Airlines
9h 42mIAD-IDA
5/14Tue
multi-stopAmerican Airlines
8h 22mIDA-IAD
$809
5/12Sun
multi-stopAmerican Airlines
9h 42mIAD-IDA
5/14Tue
multi-stopAmerican Airlines
9h 56mIDA-IAD
$813
5/10Fri
multi-stopDelta
7h 13mIAD-IDA
5/13Mon
multi-stopDelta
12h 07mIDA-IAD
$821
5/10Fri
multi-stopUnited Airlines
7h 02mIAD-IDA
5/13Mon
multi-stopUnited Airlines
6h 44mIDA-IAD
$854
5/10Fri
multi-stopUnited Airlines
31h 04mIAD-IDA
5/13Mon
multi-stopUnited Airlines
19h 00mIDA-IAD
$856
5/12Sun
multi-stopAmerican Airlines
7h 54mIAD-IDA
5/13Mon
multi-stopAmerican Airlines
9h 56mIDA-IAD
$857
5/12Sun
multi-stopAmerican Airlines
9h 42mIAD-IDA
5/13Mon
multi-stopAmerican Airlines
9h 56mIDA-IAD
$861

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Washington Dulles Airport - Idaho Falls Flights

Departure:

Washington Dulles Airport (undefined)United States

Destination:

Idaho Falls (IDA)United States

Return flight deals:

Idaho Falls - Washington Dulles Airport

Cabin classes: