Find flights
Deals
Insights
When to book
FAQs & Tips
Airlines

WAS - BOI

$65 Find cheap flights from Washington, D.C. to Boise

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Washington, D.C. to Boise departing on 7/23. 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 Boise

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Boise, 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 Boise, 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.

Track pricesNot ready to book? Create a price alert for when prices drop.

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

Bundle and saveSave money when you bundle your flight + hotel.

Cheap flight deals from Washington, D.C. to Boise (WAS-BOI)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Washington, D.C. to Boise 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
2:25 pm - 8:25 pmBWI-BOI
8h 00m1 stop
9:13 pm - 8:54 amBOI-BWI
9h 41m1 stop
$133Spirit Airlines
Find Deal
Tue, Jun 4 - Tue, Jun 11
10:34 pm - 8:10 pmBWI-BOI
23h 36m2 stops
9:13 pm - 2:55 pmBOI-BWI
15h 42m1 stop
$149Spirit Airlines
Find Deal
Tue, Jun 4 - Tue, Jun 11
7:00 am - 2:07 pmIAD-BOI
9h 07m1 stop
8:40 pm - 7:40 amBOI-IAD
9h 00m1 stop
$388Alaska Airlines
Find Deal
Tue, Jun 4 - Tue, Jun 11
6:52 am - 12:39 pmIAD-BOI
7h 47m1 stop
7:10 am - 7:43 pmBOI-IAD
10h 33m2 stops
$391American Airlines
Find Deal
Wed, Aug 14 - Sat, Aug 24
6:00 am - 4:35 pmIAD-BOI
12h 35m2 stops
1:31 pm - 11:22 pmBOI-IAD
7h 51m1 stop
$393American Airlines
Find Deal
Wed, Jul 31 - Wed, Aug 14
1:05 pm - 10:12 pmIAD-BOI
11h 07m1 stop
2:15 pm - 12:38 amBOI-IAD
8h 23m1 stop
$397United Airlines
Find Deal
Tue, Jun 4 - Tue, Jun 11
6:24 am - 11:00 amIAD-BOI
6h 36m1 stop
7:45 pm - 6:03 amBOI-IAD
8h 18m1 stop
$398Delta
Find Deal
Wed, Jul 31 - Sat, Aug 3
7:00 am - 10:01 pmIAD-BOI
17h 01m1 stop
8:40 pm - 7:40 amBOI-IAD
9h 00m1 stop
$400Alaska Airlines
Find Deal
Fri, May 31 - Tue, Jun 11
6:00 am - 12:26 pmIAD-BOI
8h 26m2 stops
7:45 pm - 6:00 amBOI-IAD
8h 15m1 stop
$403Delta
Find Deal
Tue, Jun 4 - Tue, Jun 11
7:00 am - 4:23 pmIAD-BOI
11h 23m1 stop
2:15 pm - 12:38 amBOI-IAD
8h 23m1 stop
$448United Airlines
Find Deal
Fri, Jun 7 - Tue, Jun 11

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

Get data-powered insights and trends into flights from Washington, D.C. to Boise 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, D.C. to Boise?

The average price of all flights from Washington, D.C. to Boise clicked on KAYAK for each day over the last 12 months.
For Washington, D.C. to Boise, Tuesday is the cheapest day to fly on average and Sunday is the most expensive. Flying from Boise back to Washington, D.C., the best deals are generally found on Saturday, with Monday being the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Washington, D.C. to Boise, 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 Washington, D.C. to Boise is January, where tickets cost $415 on average. On the other hand, the most expensive months are June and December, where the average cost of tickets is $725 and $690 respectively.

How far in advance should I book a flight from Washington, D.C. to Boise?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Washington, D.C. to Boise, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Washington, D.C. to Boise, you should book around 5 days before departure. For the absolute cheapest price, our data suggests you should book 20 days before departure.

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

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the past 3 days, the cheapest one-way tickets to Boise from Washington, D.C. were found on Spirit Airlines ($65) and Sun Country Air ($153), and the lowest round-trip tickets were found on Spirit Airlines ($133) and Sun Country Air ($299).

Good to know

Low season

April

High season

August

Cheapest flight

$65
Best time to beat the crowds with an average 4% drop in price.
Most popular time to fly and prices are also 7% lower on average.
Flight from Baltimore to Boise

When to book flights from Washington, D.C. to Boise

Are your dates flexible? Find out the best times to travel from Washington, D.C. to Boise 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 Washington, D.C. to Boise

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

    In the last 3 days, the lowest price for a flight from Washington, D.C. to Boise was $65 for a one-way ticket and $133 for a round-trip.

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

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

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

    Washington, D.C. is served by 2 major airports and there is only 1 main airport in Boise. You will leave Washington, D.C. from one of these airports: Washington, D.C. Reagan-National or Washington, D.C. Dulles Intl. You will be arriving at Boise Air Term. Gowen Fld.

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

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

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

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

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

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Boise are Delta and Alaska Airlines. With an average price for the route of $505 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 $686 and an overall rating of 8.0.

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

    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, D.C. to Boise.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Boise from Washington, D.C. 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, D.C. to Boise?

    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 Boise with an airline and back to Washington, D.C. with another airline.

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

    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 Boise from Washington, D.C. up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top 5 airlines serving from Washington, D.C. to Boise

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Boise. 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 Washington, D.C. to Boise? 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
8.2Boarding
7.9Comfort
8.6Crew
7.3Food
7.3Entertainment
Airline reviews

No tv, movies for a 6 hour flight! Worst airline I have ever travelled!

6.0 GoodAnonymous, May 2024JFK - SFO
Read more about Alaska Airlines reviews

No tv, movies for a 6 hour flight! Worst airline I have ever travelled!

boarding was easy and the 737 Max was comfortable and roomy but that was the only good.. there was a child screaming at the top of his lungs for the entire loading, taxiing and part of the flight and no one in the crew said anything or offered any assistance.

Delayed an hour and sat without updates. Ended up an hour late to destination

It was great; it was on time, everything went smoothly, the crew was excellent. It was just uncomfortable for the usual reasons; completely full fight, could barely move because the space was so small. The expected stuff with every airline.

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

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.

For it to have left on time! Instead of two hours early with zero notice

Flight kept delayed from morning to late afternoon so I had to make other arrangements

Crew was nice, explained emergency protocol very well. Flight took off and arrived on time. Pilot explained the small delay that occurred with docking and providing updates. I would definitely fly spirit again.

Terrible… missed our flight due to ridiculously long time to go thru baggage check-in!

The crew was not great or professional. It seemed like they didn't really want to be there. A true lack of effort for accommodating customers.

Everything was really good but the seats are not very comfortable.

I paid for WiFi, but it (WiFi) was very very slow, will never take again! Impossible open Utube 😤😤😤

I had no legroom, although I paid for extra legroom. I could barely put my bag in front of my feet and under the seat. The Wi-Fi was horrible. In fact the flight attendant said that they had to reboot it and see if it was going to work and never did.

The guy with severe body odor sat next to me. For the whole duration of the flight it was a torture. The airline should have better policy on limiting people with bad body odor to board the flight. Passengers should not be the ones to endure bad odor for the whole duration of the flight. The airline should be e the one to ensure decent air quality for ever passenger.

Overall it was a miserable experience... I will never fly spirit for more than a 3 hour flight or overnight.

Book cheap flights from Washington, D.C. to Boise

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Washington, D.C. to Boise found on KAYAK in the last 72 hours.
7/23Tue
1 stopSpirit Airlines
9h 54mBWI-BOI
$65
7/17Wed
1 stopSpirit Airlines
8h 52mBWI-BOI
$84
7/23Tue
1 stopAmerican Airlines
9h 32mIAD-BOI
$194
7/16Tue
1 stopAmerican Airlines
9h 17mDCA-BOI
$194
6/5Wed
1 stopDelta
10h 35mIAD-BOI
$199
7/23Tue
1 stopDelta
6h 50mDCA-BOI
$199
6/5Wed
2 stopsAlaska Airlines
14h 45mIAD-BOI
$216
6/12Wed
2 stopsAlaska Airlines
14h 45mIAD-BOI
$257
7/4Thu
1 stopUnited Airlines
9h 48mIAD-BOI
$295
6/16Sun
1 stopUnited Airlines
25h 42mIAD-BOI
$377

Search by stops

Search by airline

Search by price

Last minute flights from Washington, D.C. to Boise

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 Boise that are departing in the next 10 days.
5/11Sat
multi-stopSpirit Airlines
24h 40mBWI-BOI
5/14Tue
multi-stopSpirit Airlines
14h 18mBOI-BWI
$391
5/10Fri
multi-stopSpirit Airlines
10h 35mBWI-BOI
5/14Tue
multi-stopSpirit Airlines
14h 18mBOI-BWI
$497
5/11Sat
multi-stopSpirit Airlines
28h 35mBWI-BOI
5/14Tue
multi-stopSpirit Airlines
14h 18mBOI-BWI
$523
5/11Sat
multi-stopSpirit Airlines
28h 35mBWI-BOI
5/14Tue
multi-stopSpirit Airlines
39h 50mBOI-BWI
$630
5/10Fri
multi-stopUnited Airlines
9h 32mIAD-BOI
5/14Tue
multi-stopUnited Airlines
9h 46mBOI-IAD
$891
5/10Fri
multi-stopUnited Airlines
8h 49mDCA-BOI
5/14Tue
multi-stopUnited Airlines
15h 13mBOI-DCA
$896
5/10Fri
multi-stopDelta
10h 51mIAD-BOI
5/14Tue
multi-stopDelta
8h 30mBOI-IAD
$924
5/10Fri
multi-stopDelta
10h 51mIAD-BOI
5/14Tue
multi-stopDelta
10h 55mBOI-IAD
$929
5/10Fri
multi-stopAmerican Airlines
7h 55mIAD-BOI
5/12Sun
multi-stopAmerican Airlines
13h 39mBOI-IAD
$979
5/10Fri
multi-stopAmerican Airlines
13h 33mDCA-BOI
5/12Sun
multi-stopAmerican Airlines
8h 32mBOI-DCA
$979

Search by stops

Search by airline

Search by price

Flights to Boise

Destination:

Boise (BOI)United States

Return flight deals:

Boise - Washington, D.C.

Cabin classes:

Browse destinations: