$379 Cheap Flights from Seattle (BFI) to Phoenix (PHX)

View $379 flight on Sat, Aug 9, 2025Opens in a new window

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

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Cheap Flights from Seattle to Phoenix (BFI-PHX)

Prices were available within the past 7 days and start at $379 for one-way flights and $787 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Excursions LLC
Sat, Aug 2 - Tue, Aug 12
BFI
Seattle
PHX
Phoenix
$787 Roundtrip, found 1 day ago
$787
Roundtrip
found 1 day ago
Select Air Excursions LLC flight, departing Sat, Aug 2 from Seattle to Phoenix, returning Tue, Aug 12, priced at $787 found 1 day ago
Air Excursions LLC
Sat, Aug 2 - Thu, Aug 14
BFI
Seattle
PHX
Phoenix
$791 Roundtrip, found 1 day ago
$791
Roundtrip
found 1 day ago
Select Air Excursions LLC flight, departing Sat, Aug 2 from Seattle to Phoenix, returning Thu, Aug 14, priced at $791 found 1 day ago
Air Excursions LLC
Sun, Aug 10 - Thu, Aug 14
BFI
Seattle
PHX
Phoenix
$795 Roundtrip, found 1 day ago
$795
Roundtrip
found 1 day ago
Select Air Excursions LLC flight, departing Sun, Aug 10 from Seattle to Phoenix, returning Thu, Aug 14, priced at $795 found 1 day ago
Air Excursions LLC
Sat, Aug 2 - Fri, Aug 22
BFI
Seattle
PHX
Phoenix
$812 Roundtrip, found 1 day ago
$812
Roundtrip
found 1 day ago
Select Air Excursions LLC flight, departing Sat, Aug 2 from Seattle to Phoenix, returning Fri, Aug 22, priced at $812 found 1 day ago
Air Excursions LLC
Sat, Aug 2 - Sun, Aug 24
BFI
Seattle
PHX
Phoenix
$815 Roundtrip, found 1 day ago
$815
Roundtrip
found 1 day ago
Select Air Excursions LLC flight, departing Sat, Aug 2 from Seattle to Phoenix, returning Sun, Aug 24, priced at $815 found 1 day ago
Air Excursions LLC
Sun, Aug 10 - Thu, Aug 28
BFI
Seattle
PHX
Phoenix
$816 Roundtrip, found 1 day ago
$816
Roundtrip
found 1 day ago
Select Air Excursions LLC flight, departing Sun, Aug 10 from Seattle to Phoenix, returning Thu, Aug 28, priced at $816 found 1 day ago
Air Excursions LLC
Tue, Aug 5 - Tue, Aug 12
BFI
Seattle
PHX
Phoenix
$817 Roundtrip, found 1 day ago
$817
Roundtrip
found 1 day ago
Select Air Excursions LLC flight, departing Tue, Aug 5 from Seattle to Phoenix, returning Tue, Aug 12, priced at $817 found 1 day ago
Air Excursions LLC
Sun, Aug 10 - Sun, Aug 24
BFI
Seattle
PHX
Phoenix
$819 Roundtrip, found 1 day ago
$819
Roundtrip
found 1 day ago
Select Air Excursions LLC flight, departing Sun, Aug 10 from Seattle to Phoenix, returning Sun, Aug 24, priced at $819 found 1 day ago
Air Excursions LLC
Tue, Aug 5 - Thu, Aug 14
BFI
Seattle
PHX
Phoenix
$821 Roundtrip, found 1 day ago
$821
Roundtrip
found 1 day ago
Select Air Excursions LLC flight, departing Tue, Aug 5 from Seattle to Phoenix, returning Thu, Aug 14, priced at $821 found 1 day ago
Air Excursions LLC
Wed, Jul 23 - Thu, Jul 24
BFI
Seattle
PHX
Phoenix
$825 Roundtrip, found 18 hours ago
$825
Roundtrip
found 18 hours ago
Select Air Excursions LLC flight, departing Wed, Jul 23 from Seattle to Phoenix, returning Thu, Jul 24, priced at $825 found 18 hours ago

Alternative airports near Phoenix

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

Select flight to Sky Harbor Intl. PHX. Cheapest and Closest option available. Average driving time to city center is 10 minutes. Flights from $862
PHX
Sky Harbor Intl.
CheapestClosest
Average driving time to city center10 min
Flights from $862
Flights from Seattle (BFI) to Phoenix (PHX)
Origin airport
Boeing Field
Destination airport
Sky Harbor Intl.
Roundtrip price
$787
Distance
1112 mi

Seattle to Phoenix Flights

The cheapest times to fly from Seattle to Phoenix

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

 

The best time to book a flight from Seattle to Phoenix

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

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 Seattle to Phoenix in 2025. You can also book with separate airlines for your outbound and return journeys, from $379 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 Seattle to Phoenix 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 Seattle to Phoenix 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.

 

Frequently asked questions

How much does a flight from Boeing Field Airport (BFI) to Sky Harbor Intl. Airport (PHX) cost?
Discover the latest flight deals from BFI to PHX by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from BFI to PHX?
The cheapest flights from BFI to PHX are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Boeing Field Airport (BFI) to Sky Harbor Intl. Airport (PHX)?
You can't catch a direct flight to Sky Harbor Intl. Airport (PHX) from Seattle, WA (BFI-Boeing Field). However, you can easily reach Phoenix without any layovers by departing from Seattle - Tacoma Intl. Airport (SEA).
What is the cheapest airline that flies from BFI to PHX?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from BFI to PHX. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Boeing Field Airport (BFI) to Sky Harbor Intl. Airport (PHX)?
You'll have to take a flight with a layover when traveling from Boeing Field Airport (BFI) to Sky Harbor Intl. Airport (PHX). Direct flights don't operate daily on this route. However, simply filter your search to include one or more stops to find the best option for your trip.
What day of the week has the most flights from BFI to PHX?
You'll usually find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Boeing Field Airport (BFI) to Sky Harbor Intl. Airport (PHX)?
To arrive at Sky Harbor Intl. Airport (PHX) on schedule, select a flight that leaves from Boeing Field Airport (BFI) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this hour.**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.
Is it cheaper to buy a plane ticket from Boeing Field Airport (BFI) to Sky Harbor Intl. Airport (PHX) last-minute?
Holding off until just before your trip to book your flight from BFI to PHX often results in higher prices. Although you may find some last-minute discounts, there's no guarantee. Keep your travel plans flexible to boost your chances of scoring a bargain.
Is it cheaper to book a BFI to PHX flight and hotel package?
You'll generally save money by securing a BFI to PHX flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one convenient place. Once you've chosen your ideal flights and accommodations, consider adding extras including car rentals, activities and tours.
Can I cancel or change the date of my flight from Boeing Field Airport (BFI) to Sky Harbor Intl. Airport (PHX)?
If you reserved your BFI to PHX flight in the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the type of ticket 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 more details.

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*Available to One Key members.