Cheap Flights from Phoenix (PHX) to Seattle (BFI)

Popular airlines from Phoenix Sky Harbor Intl. Airport (PHX) to Seattle, WA (BFI-Boeing Field)

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 $104
PAE
Snohomish County - Paine Field
Cheapest
Average driving time to city center29 min
Flights from $104

Frequently asked questions

How much does a flight from Sky Harbor Intl. Airport (PHX) to Boeing Field Airport (BFI) cost?
Lock in a cheap one-way flight or cheap return flight from Sky Harbor Intl. Airport (PHX) to Boeing Field Airport (BFI) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Sky Harbor Intl. Airport (PHX) to Boeing Field Airport (BFI)?
Planning your trip for is a good way to save, as it's the cheapest month for flights between PHX and BFI. You'll often find the lowest prices during off-peak months.
What is the cheapest airline that flies from Sky Harbor Intl. Airport (PHX) to Boeing Field Airport (BFI)?
Expedia's filter tool lets you easily compare different airlines, travel time and fares all in one place. Choose your preferences, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest PHX to BFI flight.
How many flights per day from Sky Harbor Intl. Airport (PHX) to Boeing Field Airport (BFI)?
Nonstop flights from Sky Harbor Intl. Airport (PHX) to Boeing Field Airport (BFI) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your dates and pick either "1 Stop" or "2+ Stops."
What day of the week has the most flights from PHX to BFI?
Friday is usually the busiest day for flights, while Tuesday tends to be the quietest.* Remember that flight schedules can change depending on a range of factors, including the carrier and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Sky Harbor Intl. Airport (PHX) to Boeing Field Airport (BFI)?
To avoid potential delays on the Sky Harbor Intl. Airport (PHX) to Boeing Field Airport (BFI) route, aim to fly before 3 PM. Later departures have a 22% higher chance of being canceled.**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 Sky Harbor Intl. Airport (PHX)?
If you're traveling on a direct flight from Sky Harbor Intl. Airport (PHX) to Seattle, you can arrive at either Seattle - Tacoma Intl. Airport (SEA) or Snohomish County - Paine Field Airport (PAE).
Is it cheaper to buy a plane ticket from Sky Harbor Intl. Airport (PHX) to Boeing Field Airport (BFI) last-minute?
Last-minute fares from PHX to BFI are usually more expensive. To secure the lowest prices, start looking for flights as early as possible. That said, if you're flexible with your travel plans, you may land a cheap ticket right before you leave.
Is it cheaper to book a PHX to BFI flight and hotel package?
Compared with arranging hotels and flights separately, booking a PHX to BFI flight and hotel package with Expedia could lead to significant savings. Better still, having it all in one place will take the stress out of planning your trip. Simply secure your flights and select from our wide range of stays, then customize your trip with other add-ons like activities and car rentals.
Can I cancel or change the date of my flight from Sky Harbor Intl. Airport (PHX) to Boeing Field Airport (BFI)?
If you reserved your PHX to BFI flight in the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of fare you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for further details.

Travel information

Origin airport
Sky Harbor Intl.
Destination airport
Boeing Field
Distance
1112 mi

Book with confidence

Phoenix to Seattle Flights

The cheapest times to fly from Phoenix 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 Phoenix to Seattle are during the month of . You can find some of the cheapest flights from Phoenix to Seattle with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Phoenix to Seattle

Sunday is one of the best days to book for cheap flights from Phoenix 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 Phoenix 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 Phoenix 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 Phoenix 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 Phoenix 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.

 

Phoenix to Seattle Flights

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*Available to One Key members.