$99 Find Cheap Flights from Idaho to District of Columbia

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Low seasonFebruary
High seasonMay
Cheapest flight$99
Best time to beat the crowds with an average 31% drop in price.
Most popular time to fly and prices are also 6% lower on average.
Flight from Spokane to Reagan Washington National Airport

FAQs for booking flights from Idaho to District of Columbia

  • How does KAYAK find such low prices on flights from Idaho to District of Columbia?

    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 to District of Columbia.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Idaho to District of Columbia?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Idaho to District of Columbia 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 to District of Columbia?

    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 from Idaho to District of Columbia with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Idaho to District of Columbia?

    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 from Idaho to District of Columbia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest day to fly to District of Columbia?

    Based on KAYAK data, the cheapest day to fly to District of Columbia is Saturday where round-trip tickets can be as cheap as $436. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are $551 on average.

  • What is the cheapest time of day to fly to District of Columbia?

    The cheapest time of day to fly to District of Columbia is generally in the evening, when round-trip flights cost $433 on average. Morning departures are around 26% more expensive than evening flights, on average. The most expensive time of day to fly to District of Columbia is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $547.

  • What is the cheapest month to fly from Idaho to District of Columbia?

    The cheapest month for flights from Idaho to District of Columbia is January, when tickets cost $306 (return) on average. On the other hand, the most expensive months are July and June, when the average cost of round-trip tickets is $602 and $506 respectively.

  • How far in advance should I book a flight from Idaho to District of Columbia?

    To get a below average price on the flight from Idaho to District of Columbia, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 19 weeks before departure.

  • How long is the flight to District of Columbia?

    An average nonstop flight from Idaho to District of Columbia takes 7h 31m, covering a distance of 1949 miles. The shortest route is Idaho Falls (IDA) to Washington, D.C. Reagan-National Airport (DCA) with an average flight time of 6h 02m.

  • What is the most popular destination in District of Columbia?

    Based on KAYAK flight searches, the most popular destination is Washington, D.C. (100% of total searches to District of Columbia).

Top 5 airlines serving from Idaho to District of Columbia

Need help choosing which airline to fly with from Idaho to District of Columbia? 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 9972 reviews
8.5Crew
7.1Food
8.1Boarding
7.1Entertainment
7.9Comfort
Airline reviews

The flight was delayed by 3 hours and 30 minutes without any explanation.

2.0 MediocreMauro, Apr 2025SAN - IAD
Read more Alaska Airlines reviews

The flight was delayed by 3 hours and 30 minutes without any explanation.

Everything smooth (including the landing) and on time. Easy. Thanks.

My flight was canceled and rebooked about 3 times. Original flight had a 50 minute layover. Flight was canceled and rebooked with a five plus hour layover. I demanded refund

It was a very smooth fast flight, crew was prompt and comforting. Alaska airlines are the best.

It was a really smooth flight. I hate heights. All made it feel smooth. Thankyou

Flight cancelled. Bad service at customer service line. Missed dr appointment

I would probably fly with them again. It was a smooth process.

It was a little chilly on the ride. The entertainment was the book I brought, and it was excellent.

Crew was great, flight was uneventful (which is what you want!), would like media in the seat backs in all airplanes ..but all in all it was a good flight experience.

It was delayed twice and they still want $8 for wifi so i had to sit for an hour.

It is southwest seat was ok. Not the most comfortable seat

I’ve always loved Southwest. No issues at all. I was flying standby and the gate agent was extremely friendly and helpful. Boarding was smooth and I was able to get a window seat in the emergency exit row. Crew was fantastic! They were very professional and accommodating. We had to divert from our destination due to weather but the flight crew kept everyone at ease and informed us of all pertinent information. Excellent flight

The price of the tickets isn't matching the flight experience. No matter how long the flight is, you're only getting pretzels. The flight attendants looked unkept and over it.

Plz don't take away free bags and free seating

The seats were a bit cramped and worn, but otherwise okay.

I would have liked to arrive on time - not 5 hours late!

After a 3 hour layover in Denver my flight was delayed over 5 hours! No explanation; no assistance; no offer to provide compensation; no one at Southwest was willing to offer any assistance. 8 hours in the Denver airport - ridiculous!

It was a perfect flight in all aspects! Both legs!

Only one drink pass through the cabin for a 4 hour flight. Quite rough and bumpy landing.

Boarding process, crew were good. But the seats were so uncomfortable that was all I could focus on. I literally had to sit forward so that all 3 of us could fit in row. I will try to avoid Southwest in the future for any flights over 60 minutes.

Flight was delayed due to weather. Crew did a nice job of making us comfortable. No complain complaints.

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.

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.

Plane left & arrived early- 5 Crew great. Wi fi - paid for 2, only 1 worked - so so. Waste of $. Coolie was good

Pitch was very small. Knees were on the seat back in front of me.

Several delays. Next flight was worse. Did not arrive home until 2am PT

Very helpful ground crew after an earlier flight delay and being rebooked on a different flight.

Everything about the flight was lovely…We left early, arrived early, cabin crew were efficient and helpful. Flight was easy and most pleasant.

First world problems, but still… We were seated in first class and asked for a cocktail on a very short, 50 minute flight. After our drink order was taken, a half hour went by, and we noticed that every other person in the small plane had been served except for us. We got up to ask about it, the drinks finally came, then were taken away three minutes later since the flight was so short. Really strange situation, on the other hand, we were in Utah.

We missed our flight. The boarding pass had the wrong gate and by the time we received the text from Kayak, our flight was already gone. I’ll never use Kayak again and will go direct to the airlines in the future.

Boarding took forever, the plane was cramped and cold, and the seatbelt song came on constantly throughout the red eye flight with a loud pre-recorded message playing each time

Cabin felt crammed Snacks are lame But crew was super efficient getting us out on time despite delay

The boarding crew was incredibly helpful getting me on an earlier flight

Great experience. Flight boarded easily. Departed early. Smooth flight. Great arrival in DC--almost no taxing! Almost direct to gate from runway. Crew was terrific. Same cookies and beverages in main cabin. I did not use the entertainment system on this flight.

Book cheap flights from Idaho to District of Columbia

Recent round-trip flight deals

5/22Thu
1 stopFrontier
7h 23mBOI-DCA
6/5Thu
1 stopFrontier
6h 47mDCA-BOI
$238
5/21Wed
1 stopAlaska Airlines
8h 37mBOI-IAD
5/31Sat
1 stopAlaska Airlines
9h 05mIAD-BOI
$244
7/17Thu
1 stopDelta
8h 40mGEG-IAD
7/22Tue
1 stopDelta
7h 08mIAD-GEG
$297
5/21Wed
1 stopDelta
7h 00mGEG-DCA
5/24Sat
1 stopDelta
7h 16mDCA-GEG
$297
6/3Tue
2 stopsSouthwest
9h 25mBOI-DCA
6/7Sat
1 stopSouthwest
6h 25mDCA-BOI
$335
6/11Wed
1 stopAmerican Airlines
8h 53mBOI-IAD
6/18Wed
1 stopAmerican Airlines
10h 18mIAD-BOI
$336
6/11Wed
1 stopAmerican Airlines
7h 00mBOI-DCA
6/18Wed
1 stopAmerican Airlines
7h 48mDCA-BOI
$336
6/3Tue
1 stopUnited Airlines
6h 17mBOI-IAD
6/8Sun
1 stopUnited Airlines
9h 19mIAD-BOI
$352
6/2Mon
2 stopsSouthwest
9h 35mBOI-DCA
6/7Sat
1 stopSouthwest
6h 25mDCA-BOI
$355
5/28Wed
1 stopUnited Airlines
6h 25mIDA-IAD
6/4Wed
1 stopUnited Airlines
8h 46mIAD-IDA
$361

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Recent one-way flight deals

5/20Tue
1 stopFrontier
6h 33mGEG-DCA
$99
5/20Tue
1 stopFrontier
29h 32mBOI-DCA
$106
9/11Thu
1 stopAmerican Airlines
6h 21mJAC-DCA
$146
6/14Sat
1 stopDelta
7h 43mGEG-IAD
$149
6/11Wed
1 stopUnited Airlines
8h 02mGEG-DCA
$149
6/12Thu
1 stopDelta
8h 13mBOI-IAD
$151
6/12Thu
1 stopAmerican Airlines
8h 31mBOI-DCA
$151
7/19Sat
2 stopsUnited Airlines
12h 42mBOI-DCA
$156
9/7Sun
1 stopSouthwest
8h 30mGEG-IAD
$196
7/2Wed
2 stopsSouthwest
12h 55mGEG-IAD
$201

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Last minute flights from Idaho to District of Columbia

Last minute flight, train and bus deals

5/3Sat
multi-stopAlaska Airlines
7h 33mGEG-IAD
5/6Tue
multi-stopAlaska Airlines
9h 01mIAD-GEG
$532
5/3Sat
multi-stopAmerican Airlines
10h 14mGEG-IAD
5/6Tue
multi-stopAmerican Airlines
9h 08mIAD-GEG
$590
5/4Sun
multi-stopHawaiian Airlines
8h 44mBOI-IAD
5/7Wed
multi-stopHawaiian Airlines
8h 31mIAD-BOI
$636
5/4Sun
multi-stopUnited Airlines
8h 32mBOI-DCA
5/7Wed
multi-stopUnited Airlines
11h 21mDCA-BOI
$687
5/5Mon
multi-stopUnited Airlines
6h 25mIDA-IAD
5/5Mon
multi-stopUnited Airlines
9h 10mIAD-IDA
$710
5/4Sun
multi-stopDelta
7h 55mGEG-IAD
5/6Tue
multi-stopDelta
10h 29mIAD-GEG
$871
5/4Sun
multi-stopDelta
9h 40mGEG-DCA
5/6Tue
multi-stopDelta
10h 09mDCA-GEG
$871
5/5Mon
multi-stopSouthwest
9h 15mBOI-DCA
5/7Wed
multi-stopSouthwest
9h 15mDCA-BOI
$876
5/3Sat
multi-stopSouthwest
7h 50mGEG-DCA
5/5Mon
multi-stopSouthwest
10h 05mDCA-GEG
$876
5/2Fri
multi-stopHawaiian Airlines
7h 42mBOI-IAD
5/4Sun
multi-stopHawaiian Airlines
8h 31mIAD-BOI
$972

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Everything you need to know for your flight to District of Columbia

Cabin class types available on flights to Idaho

Cabin classes available on flights to Idaho. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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