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WAS - BOI

Find cheap flights from Washington, D.C. to Boise from $99

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 5/7. 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
Mo 5/20
Mo 5/27

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 44,212,662 times on KAYAK, and here is why:

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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
9:20 pm - 4:04 pmBWI-BOI
20h 44m1 stop
5:20 pm - 1:33 pmBOI-BWI
18h 13m1 stop
$146Spirit Airlines
Find Deal
Fr, Mai 10 - Di, Mai 14
9:20 pm - 8:25 pmBWI-BOI
25h 05m1 stop
9:15 pm - 1:33 pmBOI-BWI
14h 18m1 stop
$155Spirit Airlines
Find Deal
Fr, Mai 10 - Di, Mai 14
6:05 am - 11:00 amBWI-BOI
6h 55m1 stop
7:59 pm - 6:01 amBOI-BWI
8h 02m1 stop
$358Delta
Find Deal
Mi, Jul 10 - Mi, Jul 17
6:50 pm - 11:29 pmDCA-BOI
6h 39m1 stop
3:25 pm - 11:25 pmBOI-DCA
6h 00m1 stop
$358Delta
Find Deal
Mi, Sep 4 - Di, Sep 10
7:27 pm - 12:44 amBWI-BOI
7h 17m1 stop
5:16 pm - 9:01 amBOI-BWI
13h 45m2 stops
$361American Airlines
Find Deal
Mi, Jul 10 - Di, Jul 16
3:50 pm - 11:34 pmDCA-BOI
9h 44m2 stops
1:39 pm - 10:43 pmBOI-DCA
7h 04m1 stop
$361American Airlines
Find Deal
Mi, Sep 4 - Di, Sep 17
7:01 am - 4:13 pmIAD-BOI
11h 12m1 stop
7:05 pm - 5:35 amBOI-IAD
8h 30m1 stop
$449United Airlines
Find Deal
Do, Jul 4 - Di, Jul 9
5:59 pm - 12:14 pmIAD-BOI
20h 15m2 stops
8:40 pm - 7:40 amBOI-IAD
9h 00m1 stop
$455Alaska Airlines
Find Deal
Mi, Mai 15 - Di, Mai 21
7:40 am - 4:20 pmIAD-BOI
10h 40m1 stop
8:55 pm - 11:59 pmBOI-IAD
25h 04m1 stop
$480Alaska Airlines
Find Deal
Mo, Mai 6 - Do, Mai 9
7:01 am - 4:13 pmIAD-BOI
11h 12m1 stop
5:27 pm - 5:25 amBOI-IAD
9h 58m1 stop
$531United Airlines
Find Deal
Mi, Jul 3 - Di, Jul 9

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 Tuesday, with Thursday 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 $367 on average. On the other hand, the most expensive months are December and June, where the average cost of tickets is $835 and $753 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 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 66 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 ($99) and Sun Country Air ($169), and the lowest round-trip tickets were found on Spirit Airlines ($146) and Delta ($358).

Good to know

Low season

April

High season

August

Cheapest flight

$99
Best time to beat the crowds with an average 14% drop in price.
Most popular time to fly and prices are also 8% 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 $99 for a one-way ticket and $146 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 $516 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 $680 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 9109 reviews
8.2boarding
8.6crew
7.9comfort
7.3entertainment
7.3food
Airline reviews

This leg was better than the previous leg mostly because I upgraded my searing and the crew was nicer

8.0 ExcellentAnonymous, Apr 2024LAX - EWR
Read more about Alaska Airlines reviews

This leg was better than the previous leg mostly because I upgraded my searing and the crew was nicer

The absolute coldest flight I’ve ever been on, even with a sweater and zip up sweatshirt. Was miserable the entire flight.

The staff were great and the layover times were excellent no multiple hours. I just hate the Boxed Water. So you really have to purchase high price water in the airport.

I like that we took off on time and arrived a bit early. I like that I could gate check my bag and board early. I don't like how crowded the flight was. I had ok leg room, but could feel every move of the person next to me. And the aisles are very narrow. The gate and flight crews were terrific.

I appreciated the ability to choose between multiple flights both into and out of Portland from Burbank on the same day, so we were able to attend an event and return without spending the night. I am unable to appreciate what Alaska Air calls "streamlining" the checkin/boarding process at Burbank Airport. If you have a smartphone and the Alaska Air app, it is probably fine, but removing the option of using onsite kiosks to print boarding passes does not meet my definition of "streamlined". I also found it challenging that both Portland and Burbank airports required the plane to sit on the runway for some time due to lack of an open gate at which to disembark. It would not be so bad if we could at least remove our seat belts and move a little bit while we waited, but that is not an option. I honestly don't know whether this is because of how Alaska Air operates, or just the circumstances of the particular day and airports we were using, but I normally do not experience these kinds of delays to reach a gate using Southwest Air.

It was not a great flight. There was a software update delay which had us on the ground for almost 2 hours. I was unable to make my shuttle to my final destination.

Both flights were delayed. We sat on the tarmac on Boise for 3 hours with little updates

This flight was significantly affected by poor wifi connections. I couldn’t get my work done because the wifi kept dropping. Even texts were not going through. There is no seat power in premium class either. I fly a lot. Today was my 10th flight in 4 weeks. This was by far the only flight that was sub par.

4 out of 4 flights cancelled or delayed. 5th trip with similar experience

the departure got delayed due to SJC situation, but it was a quite good waiting thanks to Alaska airline teams.

Seat back monitors and outlets were dead and not working.

Everything was great except for the seat. The backrest would not stay in the upright position.

I usually have a positive experience with Delta. Complimentary upgrades are always nice!

Flight delayed about 2 hrs so it made it a VERY late night

It was a crowded flight. They did the best they could.

Service was good for such a short flight. Small plane but smooth flight.

Worst flight in my life. Only was scheduled for a 45 min flight to get our connection flight. It was late by 40 minutes and we missed our connection. Delta was totally useless trying to help and unable to get my family on the next flight because they overbooked it Thus had to get a hotel at my expense and lost a day at Disney as a result. Cost me about a $1000 if you add 2 hotels meals shuttles etc to get thru the day Awful customer service by Delta in Detroit totally useless people

The experience was good and the flight departed on time and landed early

The flight was delayed but we got to our final destination.

Boarding was great. The flight landed early. It took the crew over an hour and a half to bring out drinks. I paid to upgrade my seat to Comfort+ only to be near a crying/screaming baby who was seldom quiet. Noise-cancelling earbuds didn’t even help. Waste of money to upgrade.

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

I was forced to gate check my carry on luggage. Somehow it did not arrive at my destination. I still have yet to receive my bag r days after arrival.

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.

They charged me 212.00 for a heavy check in bag at the gate. The pricing and process was so confusing - as if it was designed to purposefully gouge customers who need to board plane. That experience combined with the outrageous price charged will prevent me from ever flying Spirit again. And I’ll be sure to tell the story to anyone who cares to hear.

On time and fast. Overall it was a pleasant experience.

The weight limit per bag was really low - 40 lbs - so we had to pay extra. Then, they said their carry on size was 14x18x8, and we measured our bag very carefully. It was within the limit, yet they said it was too big, so we ended up paying an extra $100 for that too!! So it wasn’t the cheap flight we thought it would be. Then, they moved up our initial flight to depart 3 hours earlier which meant we had to be out on the road by 7 am and then have a 6 hour layover and we got home at 2am. It was a grueling day. I won’t be flying with them again.

Overall it was a good experience. Stewards were very kind and professional. The departure and arrival times were as promised. Plane was clean.

The seat are terrible. Don’t even think of sleeping on a Spirit flight. The kids that run the plane aka flight attendants are pretty rude and straight forward. They get the job done but without class.

No frills, limited comfort, no food, no entertainment, but fine

I had a death in my family and booked my flight on Spirit. My flight was cancelled the morning of my flight, no explanation, no help to rebook, nobody to talk to. The next available flight was 2days later !!!! Terrible airline, will NEVER fly with them again!

Flight was canceled. Knew there was weather, and were notified of 20 min delayed, and then suddenly canceled. Next reschedule was for 2 days. No help other than to refund. Thankfully full refund and appreciate that. I appreciate discounted airline but felt they could've done more for customer inconvenience.

The seat was very uncomfortable from Boston to Nashville. Otherwise the flight was excellent.

Terrible as usual!!!! Very unprofessional and rude flight attendants! You get what you pay for! HORRIBLE

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.
5/7Di
1 stopSpirit Airlines
13h 49mBWI-BOI
$99
5/7Di
2 stopsSpirit Airlines
20h 07mBWI-BOI
$100
6/11Di
2 stopsAmerican Airlines
12h 45mIAD-BOI
$184
8/10Sa
1 stopDelta
8h 31mDCA-BOI
$199
5/25Sa
1 stopAmerican Airlines
7h 55mIAD-BOI
$199
6/11Di
1 stopAlaska Airlines
9h 07mIAD-BOI
$209
6/11Di
2 stopsDelta
9h 38mDCA-BOI
$224
5/8Mi
1 stopUnited Airlines
8h 50mBWI-BOI
$233
5/25Sa
2 stopsAlaska Airlines
20h 09mIAD-BOI
$247
5/25Sa
2 stopsUnited Airlines
16h 40mDCA-BOI
$289

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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.
4/24Mi
multi-stopSpirit Airlines
14h 23mBWI-BOI
5/1Mi
multi-stopSpirit Airlines
7h 47mBOI-BWI
$416
4/23Di
multi-stopSpirit Airlines
13h 49mBWI-BOI
4/24Mi
multi-stopSpirit Airlines
13h 57mBOI-BWI
$465
4/24Mi
multi-stopAmerican Airlines
18h 35mIAD-BOI
4/27Sa
multi-stopAmerican Airlines
16h 04mBOI-IAD
$702
4/23Di
multi-stopDelta
11h 56mBWI-BOI
4/24Mi
multi-stopDelta
8h 52mBOI-BWI
$723
4/23Di
multi-stopDelta
11h 56mBWI-BOI
4/24Mi
multi-stopDelta
9h 12mBOI-BWI
$728
4/24Mi
multi-stopUnited Airlines
7h 20mIAD-BOI
4/27Sa
multi-stopUnited Airlines
10h 37mBOI-IAD
$845
4/21So
multi-stopAlaska Airlines
8h 05mDCA-BOI
4/26Fr
multi-stopAlaska Airlines
8h 54mBOI-DCA
$848
4/24Mi
multi-stopUnited Airlines
7h 20mIAD-BOI
4/27Sa
multi-stopUnited Airlines
11h 53mBOI-IAD
$850
4/24Mi
multi-stopAmerican Airlines
11h 51mIAD-BOI
4/28So
multi-stopAmerican Airlines
7h 54mBOI-IAD
$912
4/23Di
multi-stopAlaska Airlines
8h 25mIAD-BOI
4/24Mi
multi-stopAlaska Airlines
7h 57mBOI-IAD
$966

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Flights to Boise

Destination:

Boise (BOI)United States

Return flight deals:

Boise - Washington, D.C.

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