Cheap Flights from Seattle Paine Field Intl. Airport (PAE) to Tri-Cities (TRI)

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Find available prices by choosing your travel dates.

Cheap Flights from Seattle Paine Field Intl. Airport to Tri-Cities (PAE-TRI)

Prices were available within the past 7 days and start at for one-way flights and $1,430 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Mon, Apr 14 - Wed, Apr 16
PAE
Seattle
TRI
Tri-Cities
$1,430 Roundtrip, found 6 days ago
$1,430
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Mon, Apr 14 from Seattle to Tri-Cities, returning Wed, Apr 16, priced at $1,430 found 6 days ago
Alaska Airlines
Mon, Apr 14 - Sat, Apr 19
PAE
Seattle
TRI
Tri-Cities
$1,434 Roundtrip, found 6 days ago
$1,434
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Mon, Apr 14 from Seattle to Tri-Cities, returning Sat, Apr 19, priced at $1,434 found 6 days ago
Alaska Airlines
Mon, Apr 14 - Tue, Apr 15
PAE
Seattle
TRI
Tri-Cities
$1,444 Roundtrip, found 6 days ago
$1,444
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Mon, Apr 14 from Seattle to Tri-Cities, returning Tue, Apr 15, priced at $1,444 found 6 days ago
Flights from Seattle Paine Field Intl. Airport (PAE) to Tri-Cities (TRI)
Origin airport
Seattle Paine Field Intl. Airport
Destination airport
Tri-Cities Regional
Roundtrip price
$1,430
Distance
2159 mi

Seattle Paine Field Intl. Airport to Tri-Cities Flights

The cheapest times to fly from Seattle Paine Field Intl. Airport to Tri-Cities

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 Paine Field Intl. Airport to Tri-Cities are during the month of April. You can find some of the cheapest flights from Seattle Paine Field Intl. Airport to Tri-Cities with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Seattle Paine Field Intl. Airport to Tri-Cities

Sunday is one of the best days to book for cheap flights from Seattle Paine Field Intl. Airport to Tri-Cities: 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 Paine Field Intl. Airport to Tri-Cities

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 Paine Field Intl. Airport to Tri-Cities 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 Seattle Paine Field Intl. Airport to Tri-Cities 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 Paine Field Intl. Airport to Tri-Cities 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 Snohomish County - Paine Field Airport (PAE) to Tri-Cities Regional Airport (TRI) cost?
Discover the latest flight deals from PAE to TRI 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 PAE to TRI?
The cheapest flights from PAE to TRI are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from PAE to TRI?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that’ll take you from PAE to TRI. Sort your results by “Price (lowest to highest)” to snap up a great deal.
How many flights per day from Snohomish County - Paine Field Airport (PAE) to Tri-Cities Regional Airport (TRI)?
You’ll need to catch a flight with a layover if you’re traveling from Snohomish County - Paine Field Airport (PAE) to Tri-Cities Regional Airport (TRI). There are no daily direct flights on this route. However, just 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 PAE to TRI?
Typically you’ll find the widest variety of flight choices on a Friday. Tuesdays are often the quietest.* However, this can change depending on the time of year, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Snohomish County - Paine Field Airport (PAE) to Tri-Cities Regional Airport (TRI)?
Select a flight from Snohomish County - Paine Field Airport (PAE) to Tri-Cities Regional Airport (TRI) that leaves before 3 PM to reduce the likelihood of delays and cancellations. Departures later than this are on average 22% more likely to be 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.
Is it cheaper to buy a plane ticket from Snohomish County - Paine Field Airport (PAE) to Tri-Cities Regional Airport (TRI) last-minute?
Booking your ticket from PAE to TRI just before your journey is generally more expensive. But if there’s some wiggle room with your travel times and dates, you could snag a cheap last-minute fare.
Is it cheaper to book a PAE to TRI flight and hotel package?
You can save money by booking a PAE to TRI flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it’s simple to manage everything in one place. Once you’ve selected your ideal flights and accommodations, you can add extras such as car rentals, activities and tours.
Can I cancel or change the date of my flight from Snohomish County - Paine Field Airport (PAE) to Tri-Cities Regional Airport (TRI)?
If you booked your PAE to TRI flight within the last 24 hours, you may be able to modify or cancel it without fees. Depending on the airline and the fare type you purchased, 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 information.

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*Available to One Key members.