$78 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 9/10. 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

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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Flights Deals

Best Washington Flight Deals from Boise

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Seattle
Seattlenonstop$117
Spokane
Spokanenonstop$147
Pasco
Pasco1 stop$218
Bellingham
Bellingham1 stop$383
Pullman
Pullmannonstop$228
Seattle
Seattlenonstop$117
Spokane
Spokanenonstop$147
Pasco
Pasco1 stop$218
Bellingham
Bellingham1 stop$383
Pullman
Pullmannonstop$228

Cheap Flights from Boise to Washington

 
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

Tue, Sep 9 - Wed, Sep 17
Alaska Airlines Logo
8:46 pm - 9:21 pmBOI-SEA
1h 35mnonstop
Alaska Airlines Logo
12:25 pm - 3:00 pmSEA-BOI
1h 35mnonstop
$117Alaska Airlines
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Wed, Sep 17 - Wed, Sep 24
Hawaiian Airlines Logo
8:00 am - 8:35 amBOI-SEA
1h 35mnonstop
Hawaiian Airlines Logo
11:20 am - 1:48 pmSEA-BOI
1h 28mnonstop
$134Hawaiian Airlines
Find Deal
Tue, Sep 9 - Wed, Sep 17
Delta Logo
7:30 am - 8:12 amBOI-SEA
1h 42mnonstop
Delta Logo
9:30 pm - 11:59 pmSEA-BOI
1h 29mnonstop
$137Delta
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Tue, Sep 16 - Tue, Sep 23
Hawaiian Airlines Logo
7:15 am - 10:39 amBOI-SEA
4h 24m1 stop
Hawaiian Airlines Logo
3:42 pm - 9:57 pmSEA-BOI
5h 15m1 stop
$141Hawaiian Airlines
Find Deal
Wed, Aug 27 - Mon, Sep 1
Delta Logo
11:45 am - 12:29 pmBOI-SEA
1h 44mnonstop
Delta Logo
10:30 am - 1:06 pmSEA-BOI
1h 36mnonstop
$147Delta
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Tue, Sep 9 - Sat, Sep 13
Alaska Airlines Logo
4:00 pm - 4:22 pmBOI-PDX
1h 22mnonstop
Alaska Airlines Logo
10:30 am - 12:50 pmPDX-BOI
1h 20mnonstop
$147Alaska Airlines
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Tue, Aug 19 - Tue, Aug 26
Southwest Logo
8:45 am - 6:40 pmBOI-SEA
10h 55m2 stops
Southwest Logo
6:15 am - 12:40 pmSEA-BOI
5h 25m1 stop
$162Southwest
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Tue, Aug 19 - Tue, Aug 26
Southwest Logo
8:45 am - 6:40 pmBOI-SEA
10h 55m2 stops
Southwest Logo
8:00 am - 4:50 pmSEA-BOI
7h 50m2 stops
$167Southwest
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Tue, Sep 9 - Sat, Sep 13
United Airlines Logo
2:45 pm - 6:29 pmBOI-PDX
4h 44m1 stop
United Airlines Logo
5:30 am - 1:49 pmPDX-BOI
7h 19m1 stop
$177United Airlines
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Fri, Sep 5 - Sun, Sep 7
United Airlines Logo
2:45 pm - 8:37 pmBOI-PDX
6h 52m1 stop
United Airlines Logo
7:45 am - 1:49 pmPDX-BOI
5h 04m1 stop
$203United Airlines
Find Deal
Useful Info

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?

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for round-trip flights from Boise to Washington.

The cheapest ticket to Washington from Boise found in the last 72 hours was to Seattle, at $149 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 $149.

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 $342, 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 September, when tickets cost $176 (return) on average. On the other hand, the most expensive months are June and November, when the average cost of round-trip tickets is $227 and $227 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 Thursdays 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. For the absolute cheapest price, our data suggests you should book 4 weeks before departure.


Good to know

Low seasonApril
High seasonSeptember
Cheapest flight$78
Best time to beat the crowds with an average 23% drop in price.
Most popular time to fly with an average 24% 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 $392 on average. Morning departures are around 2% more expensive than evening flights, on average. 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.

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 $149 one-way - $198 round-trip; Portland $159 one-way - $278 round-trip; Seattle $145 one-way - $248 round-trip

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 10000 reviews
8.1Boarding
7.1Food
7.8Comfort
7.1Entertainment
8.5Crew
Airline reviews

Both flights were delayed due to an incident at SEA. The problem really rests with inadequate customer & plane facilities for Skywest at SEA. You feel like you are in a cattle enclosure. And planes were sitting on taxiways waiting for parking so every plane was late. SEA appears to be over capacity. It is not a fun passenger experience waiting. But crews and flights were all fine. Alaska needs to step up.

8.0 ExcellentAnonymous, Jun 2025TUS - SEA
Read more Alaska Airlines reviews

Both flights were delayed due to an incident at SEA. The problem really rests with inadequate customer & plane facilities for Skywest at SEA. You feel like you are in a cattle enclosure. And planes were sitting on taxiways waiting for parking so every plane was late. SEA appears to be over capacity. It is not a fun passenger experience waiting. But crews and flights were all fine. Alaska needs to step up.

Staff are helpful and patient. I don’t appreciate the almost 5 hours delay and also the delay of our luggage and being switched from one carousel to another to pick them up.

It was horrible. Last minute gate change, delays, more delays and then we had to wait for a stweardess to onboard. No explanation for the wait. No apologies. We got to RDM way past schedule @ 1:30 am!!!! Stressful and exhausting. We'd avoid flying Alaska ever again.

The flight was short and smooth. The crew was friendly and courteous.

Flight was delayed 5 hours. Missed connecting flight. Very little apology or attempt to make anything better. Got a $150 credit for next flight. There won’t be another flight. First time on Alaska - last time. Keep your credit. Should have done something more

The crew the employees were friendly and excellent. There was a problem with the plane and they had workers there immediately working on it. They made sure the people that had immediate connects knew what gates they had to get to and had them leave the plane first. Very thoughtful.

We waited over an hour for our luggage to arrive at the carousel in Seattle.

Like the friendliness of the crew, each flight had a very very drunk person next to me and the last flight had a very obese man pushing me into the aisle while the crew kept ending up hitting me in the shoulder with the beverage carts.

Flight was about 30 minutes delayed. All staff were friendly and professional while keeping us updated.

My screen was hard to change channels….seemed it was worn out….i just gave up and read a book I brought

The flight was scheduled for 2:30 PM. Early in the morning we got a text message saying the flight was delayed and rescheduled for 3:00 PM. We got to the airport with that in mind. Then we got a message during check-in at the flight was rescheduled again for 2:30 PM. We almost missed our flight. In fact, our bags Were told that they would not make it. At the end, everything worked out. But it is very stressful.

Most aspects were good however if they assign boarding zones they ought to enforce them or why bother? My luggage from SAN-JFK-MAD was lost in NY so I without my main bag for two days upon arrival in Spain. They were helpful in tracking it and eventually delivered it to my hotel. The flub was because of a delay upon arrival in NYC. I had booked 2 1/2 hours between flights but we had to hold on the taxiway for an hour after landing while waiting for a clear gate which likely caused the baggage error.

Excellent check-in. Crew was good. Excellent communication from flight deck.

Great overall. There was a bit of turbulence so they could only serve water because too much turbulence for the carts. Was glad they prioritized safety though

Excellent flight, the planes were newer, they did a nice job with boarding, great service overall.

Great service. Flight was delayed while we sat on the runway for a couple of hours. Weather related. Staff made is very bearable. The steward servicing the first class cabin was exceptional. Thank you! 💗

5 hours of delay that could've been much shorter if Delta had taken the 1 hour delay they imposed on the flight before boarding to run any of the plane checks required for flight to find the hydraulic issue that required nearly 3 hours to fix. $24 of meal credit buys a sandwich and a soft drink. Poor communication within the terminal about what gate we'd be re-boarding from and when we'd be re-boarding.

Amazing flight! I have never noticed the uniforms of the attendants before in twenty years of flying except today when one female had the most amazing dress on. It was beautifully designed and showed she was in charge. I never dreamed I would google who designed Delta uniforms . The ultimate compliment is when another woman admires your outfit. . I hope your designer puts it on the market

It would be nice if was given wires ear buds. Overall was a good experience was able to sleep on the plane

My flight was 6 pm 6/6. Every hour they delayed it again - air condition issues then no pilot then the crew had worked too many hours and cancelled the flight at 11 pm. Sent customers to NJ a 45 minutes uber ride to a hotel. Had to be back by 5 am for a 7 am flight and again no pilot etc with another three hours of delays.

Both flights were late 2+ hours with ZERO communication from the airlines or their staff. No offers for compensation. WiFi didn’t work for streaming and they said to only use browsing but that didn’t work either. Waste of $$. No drinks only boxed water or apple juice. No snack. One of the worst flight experiences I’ve ever had.

The ticket and bag check in was chaotic at SEATAC. No clear communication or signage for bag drop off.

This was actually an Alaska flight. I was not able to check in online using the Kayak app or the web for Hawaiian or Alaska airlines. So I contacted Hawaiian and they advised that I had to go to the counter when I arrive at the airport. So I waited in line at the Hawaiian counter for 45 minutes. When I got to the ticket agent she advised that I needed to go to the Alaskan Airlines ticket counter. So I went to that counter which thankfully was not busy. I received my boarding pass and then went to security. I arrived at the gate as boarding was beginning. The frustration is that Hawaiian or Kayak should have directed me to the correct ticket counter. When it is “operated by” a average person doesn't know what that means. Kayak app was silent on what action to take when I was unable to check in online and Hawaiian just stated my ticket number and confirmation numbers were invalid. Communication is key and this process could be cleaned up. Thank goodness I am savvy and speak English, I can’t imagine this process for someone who may not be.

If I knew I would be on Alaska Airlines flying back, I never would have bought the ticket. My flight kept getting delayed and Alaska always seems to be late which is why I don’t fly on them.

Good. They changed our gate very late and then when we landed, we had to wait 20 minutes to get off the airplane because another plane was in a slot.

Very nice experience. The boarding however seemed somewhat mixed up, and we were delayed taking off.

Flight was canceled with no voucher of any kind and next available flight was two days later.

Boarding was chaotic. Microphone not working properly and second agent was distracted from task with baggage and late arrivals.

I DID NOT GO TO HAWAII ON HAWAIIAN AIRLINES. YOU DID NOT INFORM ME THAT BY CHOOSING BASIC ECONOMY, I MIGHT BE REQUIRED TO FLY STANDBY. I AM ELDERLY AS WAS MY COMPANION WHO IS ALSO SEVERELY DISABLED AND THERE WOULD BE NO WAY WE COULD TRAVEL ON STANDBY. THEY TOLD ME THAT ALL OF THE BASIC ECONOMY SEATS HAD BEEN SELECTED BY OTHER PASSENGERS AND WE HAD TO PAY AN ADDITIONAL $942 TO GET A SECURED SEAT ON THE PLAN AND, IN SPITE OF THE ADDITIONAL COST, WE WERE NOT ALLOW US TO AMEND OUR TRAVEL PLANS TO EXTEND OUR VACATION. ULTIMATELY, THE FLIGHT WAS DELAYED. WE WERE OFFERED A REFUND IF WE CANCELED OUR TRIP ALTOGETHER WHICH WE DID. IT IS YOUR DUTY TO INFORM YOUR CUSTOMERS OF THE POTENTIAL PROBLEMS THEY MAY FACE, AND YOU DID NOT DO SO. I WILL NOT UTILIZE YOUR SERVICES EVER AGAIN.

It was very pleasant. The staff and crew are very polite.

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

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