$66 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 2/27. 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$129
Spokane
Spokanenonstop$146
Pasco
Pasco1 stop$366
Bellingham
Bellingham1 stop$237
Pullman
Pullmannonstop$127
Seattle
Seattlenonstop$129
Spokane
Spokanenonstop$146
Pasco
Pasco1 stop$366
Bellingham
Bellingham1 stop$237
Pullman
Pullmannonstop$127

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

Wed, Feb 25 - Sun, Mar 1
Alaska Airlines Logo
2:31 pm - 2:32 pm
BOI
-
PUW
1h 01mnonstop
Alaska Airlines Logo
3:09 pm - 5:10 pm
PUW
-
BOI
1h 01mnonstop
$127Alaska Airlines
Sat, Feb 28 - Sun, Mar 1
Alaska Airlines Logo
8:30 am - 9:18 am
BOI
-
SEA
1h 48mnonstop
Alaska Airlines Logo
8:10 pm - 10:40 pm
SEA
-
BOI
1h 30mnonstop
$129Alaska Airlines
Fri, Mar 6 - Wed, Mar 11
Alaska Airlines Logo
2:31 pm - 2:32 pm
BOI
-
PUW
1h 01mnonstop
Alaska Airlines Logo
3:09 pm - 5:10 pm
PUW
-
BOI
1h 01mnonstop
$131Alaska Airlines
Thu, Feb 26 - Sat, Feb 28
Frontier Logo
12:38 pm - 10:55 am
BOI
-
SEA
23h 17m
1 stop
Frontier Logo
1:16 pm - 11:11 am
SEA
-
BOI
20h 55m
1 stop
$134Frontier
Wed, Feb 25 - Wed, Mar 4
Delta Logo
1:51 pm - 2:45 pm
BOI
-
SEA
1h 54mnonstop
Delta Logo
7:15 am - 9:50 am
SEA
-
BOI
1h 35mnonstop
$137Delta
Sat, Feb 28 - Sun, Mar 1
Hawaiian Airlines Logo
4:30 pm - 9:42 pm
BOI
-
SEA
6h 12m
1 stop
Hawaiian Airlines Logo
8:10 pm - 10:40 pm
SEA
-
BOI
1h 30mnonstop
$141Hawaiian Airlines
Sat, Mar 14 - Sat, Mar 21
Hawaiian Airlines Logo
4:30 pm - 4:40 pm
BOI
-
GEG
1h 10mnonstop
Hawaiian Airlines Logo
6:20 am - 8:28 am
GEG
-
BOI
1h 08mnonstop
$146Hawaiian Airlines
Fri, Feb 27 - Tue, Mar 3
Delta Logo
1:51 pm - 2:45 pm
BOI
-
SEA
1h 54mnonstop
Delta Logo
5:50 pm - 8:15 pm
SEA
-
BOI
1h 25mnonstop
$147Delta
Wed, Feb 25 - Wed, Mar 4
Southwest Logo
5:25 pm - 9:50 pm
BOI
-
SEA
5h 25m
1 stop
Southwest Logo
9:30 am - 2:55 pm
SEA
-
BOI
4h 25m
1 stop
$151Southwest
Tue, Feb 24 - Tue, Mar 3
Southwest Logo
4:00 pm - 8:30 pm
BOI
-
PDX
5h 30m
1 stop
Southwest Logo
2:15 pm - 11:10 pm
PDX
-
BOI
7h 55m
1 stop
$151Southwest
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 $118 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 $118.

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 $183, 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 February, when tickets cost $159 (return) on average. On the other hand, the most expensive months are March and June, when the average cost of round-trip tickets is $217 and $212 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, Thursday 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 66% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 5 weeks before departure.

Good to know

Low seasonOctober
Cheapest flight$66
Most popular time to fly with an average 7% 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.

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

    The cheapest time of day to fly to Washington is generally at night, when round-trip flights cost $383 on average. Morning departures are around 8% cheaper than evening flights, on average. The most expensive time of day to fly to Washington is generally in the evening, which is peak travel time and where the average cost of a ticket is $525.

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 $98 one-way - $177 round-trip; Portland $158 one-way - $292 round-trip; Seattle $139 one-way - $278 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.
8.0
Alaska AirlinesOverall score based on 11807 reviews
7.1Food
7.8Comfort
8.1Boarding
8.5Crew
7.0Entertainment
Airline reviews

The staff was extremely helpful and accommodating. The only thing I could have done without was the long layover in between flights but I was going to a less popular destination so it was understandable.

10.0 ExcellentAnonymous, Jan 2026
RNO - SEA
Read more Alaska Airlines reviews

The staff was extremely helpful and accommodating. The only thing I could have done without was the long layover in between flights but I was going to a less popular destination so it was understandable.

All went well, right on time, easy boarding. We ordered the evergreens grain bowl and were surprised and pleased how adequate it was for vegan lunch! Landing was smooth and gate exit was easy

My seat and tray were filthy. Someone’s used straw was in the seat pocket and there were coffee stains and food crumbs on the tray table

On time, good boarding process very quick. Clean planes. Planes are tight, not much leg room ( i am only 5'8"). Some attendants are moving through aisles fiercely and pushing passengers. Got yelled for a tiny man bag that it is an extra personal tem ( size of a wallet) Wi-Fi on the plane does not work well with android phones.

I didn’t go, and can’t use a no refundable ticket.

good food and service and the seats were much better than anything comparable provided by US airlines. The entire experience was light years better than flying with a US company.

On time departure and early arrival giving more than ample time for connecting flight.

Flights were on time, easy boarding, comfort, flight was smooth.... Best travel experience I have ever had

Second flight in a row that I've been on where the auto bag counter stopped working and they had to manually count cargo before takeoff. Also second flight where my whole fruit and cheese plate looked pretty stale/old. The grapes were very strange tasting to the point where I didn't eat them. Apple slices were just sad/gross looking so also avoided those.

I enjoyed the Starlink access but didn't have much time to use it. It also kept dropping me so I gave up. The food was very good though when I asked for a different "dessert" they didn't have anything. Chocolate Brownie Cookies are not suitable for everyone...maybe children. The flight staff were amazing - at least in First Class! My first time ever! The trip from Boise to San Diego was FAR better than going to Boise.

Timing, quality of service, promptness and courtesy of the staff

It was last minute due to weather - considering - it was amazing! Good smiles, friendly staff and they were making sure we knew what was going on when and where.

delta last minute gave me a boarding pass for a different flight with no confirmation that they were changing it

The service from the flight attendants were of supreme quality. They greeted and treated everyone with a wide smile. This is totally absent nowadays. Kudos to them!!!!

Excellent flight and got us around tough weather. Only issue was seat TV did not work and crew tried to reboot.

Very large passenger too space from my own seat. Arm board couldn’t be lowered because of his size. It wads very uncomfortable trip, as the flight was full couldn’t move anywhere having back pain because of the position in which I was the entire flight.

was sitting in the jet bridge for 10 minutes in -20 degree weather waiting for my bag

Outdated equipment in disrepair, wifi inoperable. Broken seats, taped air vents, generally poor condition, the 717 showed its age and lack of upkeep.

My flight out of Baton Rouge to Atlanta was delayed by a half hour. This got us into Atlanta airport 30 minutes late. I ran through the airport to get to my connecting flight. As I approached the boarding gate, I saw the boarding door was still open and a passenger was being checked in. But when I got to the gate, the boarding agent told me they had already given away my seat and there were no empty seats on that flight. So I had to take a later flight. That has never happened to me before. Very frustrating.

Connection through Atlanta was difficult. Mechanical issue on plane caused a two hour delay. New gate was a mile away.

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.

Unfortunately, I was put into the middle seat in the first row of premium seating. Sounds nice right? No! that is the worst seat in the plane. I wish I was in economy rather than be in that seat! There is no seat back pocket, no tray table, no charger. Nothing! so unless you're row mates are willing to let you share their basic amenities any flyer should have, you are stuck. It was the worst experience ever! And the flight attendant forgot to take my drink order. I felt like the forgotten flyer.

Delayed and cancelled flights were hard and very stressful, both ways!

The crew was quite good, they came by often with drinks or to collect trash. But what wasn't nice was the flight was over weigh and several people had to be rebooked. I was questioned whether I should have a seat when I was getting to it. The in-flight entertainment kept buffering and interrupting. And the route took the airplane through high winds which caused us a longer flight

Wasn’t on the flight due to Alaska cancellation…also after all the rerouting, I was going to be on a later flight that left SFO at 7:47pm, which meant an almost 6 hour layover. That same Hawaiian flight was delayed for another 2hours.

I had to cancel the flight because with a 3 hour delay for 'unexpected maintenance' in getting to LAX, I couldn't connect to an overseas flight that I had booked on Scandinavian Air.

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

Information on your arrival and departure airports