Cheap Flights from Boise (BOI) to Seattle (BFI)

Popular airlines from Boise Airport (BOI) to Seattle, WA (BFI-Boeing Field)

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Alternative airports near Seattle

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Snohomish County - Paine Field PAE. Cheapest option available. Average driving time to city center is 29 minutes. Flights from $493
PAE
Snohomish County - Paine Field
Cheapest
Average driving time to city center29 min
Flights from $493

Frequently asked questions

How much does a flight from Boise Airport (BOI) to Boeing Field Airport (BFI) cost?
Get a cheap one-way flight or cheap return flight from Boise Airport (BOI) to Boeing Field Airport (BFI) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Boise Airport (BOI) to Boeing Field Airport (BFI)?
The cheapest month to fly from BOI to BFI is , when there's less demand. Off-peak season is usually when you'll find lower airfares between these airports.
What is the cheapest airline that flies from Boise Airport (BOI) to Boeing Field Airport (BFI)?
To find the cheapest airline that'll fly you from BOI to BFI, use Expedia's filter tool. Customize your search based on what's important to you, such as preferred carriers and number of stops. You can then sort your results by "Price (lowest to highest)" to see the cheapest fares upfront.
How many flights per day from Boise Airport (BOI) to Boeing Field Airport (BFI)?
There are no daily nonstop flights departing from Boise Airport (BOI) to Boeing Field Airport (BFI). But you can choose flights with layovers. Filter your search on Expedia to include one or two stops, and you'll be cruising above the clouds before you know it.
What day of the week has the most flights from BOI to BFI?
You'll generally find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Boise Airport (BOI) to Boeing Field Airport (BFI)?
Opt for a flight from Boise Airport (BOI) to Boeing Field Airport (BFI) that takes off before 3 PM to reduce the risk of cancellations. Later departures have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Seattle from Boise Airport (BOI)?
Seattle - Tacoma Intl. Airport (SEA) is the only airport in Seattle with direct flights from Boise Airport (BOI). Check out the available options and find cheap fares on Expedia.
Is it cheaper to buy a plane ticket from Boise Airport (BOI) to Boeing Field Airport (BFI) last-minute?
Last-minute bookings from BOI to BFI are generally more expensive. To lock in the best prices, start searching for flights well in advance. That said, if you can play around with your travel dates, it's possible to find a cheap ticket just before your departure.
Is it cheaper to book a BOI to BFI flight and hotel package?
Securing a BOI to BFI flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels in one place. Pick from our impressive range of hotels and then add car rentals, activities and flights to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Boise Airport (BOI) to Boeing Field Airport (BFI)?
In most instances, you can cancel or reschedule your BOI to BFI flight. However, additional fees may apply, especially if your booking was made more than 24 hours ago. Check your itinerary for the airline's fees and policies on flight changes, or if you want further information, go to our Customer Service portal.

Travel information

Origin airport
Boise
Destination airport
Boeing Field
Distance
402 mi

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Boise to Seattle Flights

The cheapest times to fly from Boise to Seattle

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Boise to Seattle are during the month of . You can find some of the cheapest flights from Boise to Seattle with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Boise to Seattle

Sunday is one of the best days to book for cheap flights from Boise to Seattle: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Boise to Seattle

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Boise to Seattle in 2025. You can also book with separate airlines for your outbound and return journeys, from one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Boise to Seattle flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Boise to Seattle airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Boise to Seattle Flights

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