$59 Find Cheap Flights from Boise to Washington

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Boise to Washington departing on 4/2. 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
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Washington

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boise to Washington, 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 Boise to Washington, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Boise to Washington

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Seattle
Seattlenonstop$99
Spokane
Spokanenonstop$197
Pasco
Pasco1 stop$415
Bellingham
Bellingham1 stop$247
Pullman
Pullmannonstop$117
Seattle
Seattlenonstop$99
Spokane
Spokanenonstop$197
Pasco
Pasco1 stop$415
Bellingham
Bellingham1 stop$247
Pullman
Pullmannonstop$117

Book Cheap Boise to Washington Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Boise to Washington 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 for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Boise to Washington

Thu, May 7 - Tue, May 12
Delta Logo
9:16 pm - 10:05 pm
BOI
-
SEA
1h 49mnonstop
Delta Logo
2:35 pm - 5:09 pm
SEA
-
BOI
1h 34mnonstop
$99Delta
Thu, Apr 9 - Sun, Apr 12
Delta Logo
7:30 pm - 8:18 pm
BOI
-
SEA
1h 48mnonstop
Delta Logo
7:15 am - 9:55 am
SEA
-
BOI
1h 40mnonstop
$108Delta
Thu, Apr 9 - Thu, Apr 16
Alaska Airlines Logo
9:55 am - 10:30 am
BOI
-
SEA
1h 35mnonstop
Alaska Airlines Logo
9:53 am - 12:22 pm
SEA
-
BOI
1h 29mnonstop
$117Alaska Airlines
Thu, Apr 2 - Tue, Apr 7
Alaska Airlines Logo
3:49 pm - 3:49 pm
BOI
-
PUW
1h 00mnonstop
Alaska Airlines Logo
4:26 pm - 6:25 pm
PUW
-
BOI
0h 59mnonstop
$117Alaska Airlines
Mon, Apr 6 - Mon, Apr 13
Delta Logo
4:43 pm - 5:25 pm
BOI
-
SEA
1h 42mnonstop
Delta Logo
6:50 pm - 9:24 pm
SEA
-
BOI
1h 34mnonstop
$118Delta
Wed, Apr 22 - Mon, Apr 27
Delta Logo
8:59 am - 9:53 am
BOI
-
SEA
1h 54mnonstop
Delta Logo
7:20 am - 10:01 am
SEA
-
BOI
1h 41mnonstop
$119Delta
Sat, Apr 4 - Sun, Apr 5
Hawaiian Airlines Logo
1:26 pm - 1:47 pm
BOI
-
PDX
1h 21mnonstop
Hawaiian Airlines Logo
7:00 am - 9:15 am
PDX
-
BOI
1h 15mnonstop
$127Hawaiian Airlines
Fri, Apr 10 - Sun, Apr 12
Hawaiian Airlines Logo
5:50 am - 6:19 am
BOI
-
PDX
1h 29mnonstop
Hawaiian Airlines Logo
7:00 am - 9:15 am
PDX
-
BOI
1h 15mnonstop
$128Hawaiian Airlines
Wed, Apr 29 - Wed, May 6
Southwest Logo
1:05 pm - 6:00 pm
BOI
-
SEA
5h 55m
1 stop
Southwest Logo
5:35 pm - 12:25 am
SEA
-
BOI
5h 50m
1 stop
$151Southwest
Wed, Apr 15 - Wed, Apr 22
Southwest Logo
11:35 am - 4:25 pm
BOI
-
PDX
5h 50m
1 stop
Southwest Logo
6:30 am - 1:20 pm
PDX
-
BOI
5h 50m
1 stop
$157Southwest
Booking Insights

KAYAK's insights & trends for Boise to Washington flights

Get data-powered insights and trends into flights from Boise to Washington to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest Boise to Washington flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Washington from Boise found in the last 72 hours was to Seattle, at $111 round-trip. The most popular route is from Boise (BOI) to Seattle (SEA), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $111.

What is the cheapest time of day to fly to Washington?

The average price for all round-trip flights from Boise to Washington depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Washington is generally at night, when round-trip flights cost $383 on average. On average, there is no price difference when choosing to fly in the morning or the evening on this flight route. The most expensive time of day to fly to Washington is generally in the morning, which is peak travel time and where the average cost of a ticket is $475.

Can I save money by flying with a layover from Boise to Washington?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $194, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from Boise to Washington?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Boise to Washington, 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 Boise to Washington is January, when tickets cost $139 (return) on average. On the other hand, the most expensive months are June and March, when the average cost of round-trip tickets is $227 and $207 respectively.

What’s the cheapest day of the week to fly from Boise to Washington?

The average price of all round-trip flights from Boise to Washington clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Boise to Washington, look for departures on Fridays and avoid leaving on a Sunday, as it's usually the priciest day. When flying back from Washington, Saturday is the cheapest day to fly and Sunday is the most expensive.

How far in advance should I book a flight from Boise to Washington?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Boise to Washington, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Boise to Washington, you should book around 4 weeks before departure, which saves you about 67% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 10 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$59
Best time to beat the crowds but there is an average 11% increase in price.
Most popular time to fly with an average 15% increase in price.
Flight from Boise to Seattle

FAQs - booking Washington flights

  • How does KAYAK find such low prices on flights from Boise to Washington?

    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 Boise to Washington.

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

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

    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 Boise to Washington 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 Boise to Washington?

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

Top tips for finding cheap flights to Washington

  • Looking for a cheap flight? 25% of our users found tickets from Boise to the following destinations at these prices or less: Spokane $108 one-way - $181 round-trip; Portland $183 one-way - $298 round-trip; Seattle $160 one-way - $292 round-trip

Reviews of the top 3 airlines serving from Boise to Washington

 
See real verified KAYAK customer reviews for airlines flying from Boise to Washington. 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 Boise to Washington? 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.
7.9
Alaska AirlinesOverall score based on 12058 reviews
8.5Crew
7.0Entertainment
8.1Boarding
7.0Food
7.8Comfort
Airline reviews

They changed the flight time from 4:00 to 1:50. We missed the flight because we did not know. We were not entitled to any sort of refund.

2.0 MediocreAnonymous, Mar 2026
FCA - SEA
Read more Alaska Airlines reviews

They changed the flight time from 4:00 to 1:50. We missed the flight because we did not know. We were not entitled to any sort of refund.

After landing in Seattle, 3 hours waiting to find parking space do to driving problems. Very uncomfortable.

Snacks for our toddler could have been better, front the standpoint of variety but that’s not any different from other airlines.

Never got on because first part of trip was cancelled and we have no idea when we will get rebooked…

They cancelled the flight and provided no support to find another way home or how to get a refund. Links provided didn’t work and phone wait times were over eight hours. Battery on my phone couldn’t last long enough.

signage from the upper area to the tram down 2 escalator!

The WiFi worked for entertainment but a nearly 4 hour flight should have personal tvs

Generally very good. Waiting (due to de-icing and traffic) in plane to take off was a put-off. But it's not the airline's fault. I find Airbus more comfortable than Boeing.

Lot's of good food and free entanglement made the trip pleasurable and fun.

The food was terrible, worse that what you get with UA, an already one of the lowest standards to beat. How cheap one could be, providing that kind of junk food in first class. Unbelievable! The seats were not very comfortable either. And there were no screens either, not that I cared much but for you to know.

Perhaps when you’re sitting in 1st class and the crew closes the bathroom for the pilots, there could be a notification other than holding your hands up as a blockade when you get there and you’re told the restrooms are closed please turn around … especially at night when visibility is poor and you’re met by a flight attendants with their arms up

First class is comfortable. Enjoyed a movie and was able to relax compared to coach.

Loved flying First Class. Very comfortable. The seat was amazing. Enjoyed a movie and was able to relax so much better than in coach.

We landed and sat on the tarmac for 45 minutes because they only have one gate at the airport and there was another plane running late so we had to wait

The WiFi was not working. That made for a long flight.

Absolutely no communication on why there's a delay and multiple flight time reschedules. I would have canceled the flight and drove back home if I known it was going to be rescheduled 3 or 4 times.

Another late night flight and MORE men belligerently drinking and yelling. I had to move from first to economy because they were so obnoxious and disruptive. Crazy to go from a cozy chair to cardboard when you were supposed to be in first. Delta allows was too much drinking which leads to belligerent behavior.

I was in first class and literally the men behind me were so aggressively loud I moved myself to economy. This has become so common on Delta - people using audio without headphones, and men on 12am / late night flights drinking and yelling to talk to each other which prevents anyone around them from resting. Pretty crazy to have to move from first to economy (poorer service, less comfort...). Wild wild. Looking into other airlines.

Everything was good except wifi and a leaking drink chiller. The floor was all wet and my bag was soaked. Did not notice until debarking. Have not heard back from Delta. Even though this was leg one of an international flight in first class, they denied access to their Sky Club - very disappointing!

Prior to takeoff, the pilot told us there was a possibility of not being able to land and going to Portland. Well that happened, we took off and then did 8 loops around Spokane before the pilot told us we ran out of fuel and had to go to Portland. So for a 35 minute flight we have now been on the plane for 3 hours (boarded at 6:50 am and landed in Portland at 10:30). Then, we just sat in Portland's airport with no updates of when we can start heading back. All of a sudden, our pilots and crew just left, leaving us stranded in a different city and state. We continued to sit in Portland until we finally got a new crew assigned and boarded the plane (This was from 10:30-2). We then sat on the plane for an additional hour before take off because they had to count us multiple times. We finally landed in Spokane at 3:55 PM. So a flight that should have taken at max an hour took us 10 hours and we missed the majority of the recruiting event we went for.

Fabulous if you have a portable wheelchair. They can store it in the galley and you can just walk out with it. Really nice and the flat seats are just incredible, very nice. iPads for movies, also pretty nice,

The crew were exceptionally nice and accommodating. My wife was tired after the flight from Haneda, Tokyo. They let her sleep and served her dinner later after she woke up, before we landed in PDX.

No charging outlets worked. Other than collecting trash attendants didn’t come around. No one could hear flight attendants announcements during the flight. Seat pads were horrible. Sitting on a board for 5 hours. What happened to Hawaiian airlines comfort, hospitality, and extras? Our pilots did an excellent job trying to minimize turbulence and incredible job in landing in windy conditions.

I like that if they asked you to checked in a bag at the gate they give you priority to board

Horrible food and crew. Crew were laughing and talking loud while people were trying to sleep

Yall need to integrate your system with Alaska more efficiently. They booted me off the first flight because of a discrepancy on your end.

The crew at Hawaiian Airlines was fantastic. Kind and hard working. The pilots were great with giving us all the updates to make sure we were informed.

Very good. Nice plane and we sat in economy plus - bigger seats, more room. They served a meal and snacks, and the meal was an apple stuffed pancake that was very good! The snack for us was a hummus sandwich - also very good. The flight attendants were helpful and nice. They have plenty of movies and shows to watch. My only negative -- they changed our flights around and did not adjust the layovers, so we ended up with a very long and unnecessary layover in Honolulu.

I liked the Starlink WiFi but didn't like how they said they were the only airline to offer a free meal and it turns out to be just a standalone sandwich and then charge for snacks to go with it. Rather have the free snacks like Southwest, but have the option to purchase a decent meal for a 5+ hour flight.

Flight scheduled to take off at 5.55pm but it did not take off until 7pm due to some food delivery delay.

Everything you need to know for your flight from Boise to Washington

Information on your arrival and departure airports