$687 Cheap Flights from Seattle (BFI) to Pasco (PSC)

View $687 flight on Sat, Aug 30, 2025Opens in a new window

Popular airlines from Seattle, WA (BFI-Boeing Field) to Tri-Cities Airport (PSC)

Cheap Flights from Seattle to Pasco (BFI-PSC)

Prices were available within the past 7 days and start at $687 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Flights from Seattle (BFI) to Pasco (PSC)
Origin airport
Boeing Field
Destination airport
Tri-Cities
Distance
174 mi

Seattle to Pasco Flights

The cheapest times to fly from Seattle to Pasco

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

 

The best time to book a flight from Seattle to Pasco

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

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 Pasco in 2025. You can also book with separate airlines for your outbound and return journeys, from $687 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 Pasco 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 Pasco 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 Tri-Cities Airport (PSC) cost?
Grab a cheap one-way flight from $687 or cheap return flight from Boeing Field Airport (BFI) to Tri-Cities Airport (PSC) 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 Boeing Field Airport (BFI) to Tri-Cities Airport (PSC)?
The cheapest month to fly from BFI to PSC is , when there's less demand. Off-peak months are often when you'll find cheap fares for travel between these airports.
Which airlines fly direct from Boeing Field Airport (BFI) to Tri-Cities Airport (PSC)?
There are no direct flights from Seattle, WA (BFI-Boeing Field) to Tri-Cities Airport (PSC). However, you can find other airports offering nonstop flights. Start your journey at Seattle - Tacoma Intl. Airport (SEA) and fly straight to Pasco without any detours.
What is the cheapest airline that flies from Boeing Field Airport (BFI) to Tri-Cities Airport (PSC)?
To find the cheapest airline that'll fly you from BFI to PSC, use Expedia's filter tool. Customize your search based on your travel style, such as preferred carriers and seat class. You can then sort your results by "Price (lowest to highest)" to see the cheapest fares upfront.
How many flights per day from Boeing Field Airport (BFI) to Tri-Cities Airport (PSC)?
You'll have to hop on a flight with a layover when traveling from Boeing Field Airport (BFI) to Tri-Cities Airport (PSC). Direct flights don't operate daily on this route. However, just filter your search to include one or two stops to discover an option that works for you.
What day of the week has the most flights from BFI to PSC?
You'll generally find Tuesday the quietest day for flights, while Fridays are often 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 Boeing Field Airport (BFI) to Tri-Cities Airport (PSC)?
Book a flight from Boeing Field Airport (BFI) to Tri-Cities Airport (PSC) that leaves before 3 PM to reduce the risk of cancellations and delays. Departures after this hour 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.
Is it cheaper to buy a plane ticket from Boeing Field Airport (BFI) to Tri-Cities Airport (PSC) last-minute?
Booking your plane ticket from BFI to PSC just before your trip is typically more expensive. But if you're flexible with your travel times and dates, you could bag a cheap last-minute fare.
Is it cheaper to book a BFI to PSC flight and hotel package?
You can save money by securing a BFI to PSC flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one place. After selecting your ideal flights and accommodations, consider adding extras including activities, car rentals and tours.
Can I cancel or change the date of my flight from Boeing Field Airport (BFI) to Tri-Cities Airport (PSC)?
If you booked your BFI to PSC flight within the last 24 hours, you may be able to cancel or modify it without any 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 further details.

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*Available to One Key members.