S$89 Cheap Flights from Pasco to Seattle

View S$89 flight on Sat, 7 Feb, 2026Opens in a new window

Popular airlines from Tri-Cities Airport (PSC) to Seattle-Tacoma International Airport (SEA)

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Cheap Flights from Pasco to Seattle (PSC-SEA)

Prices were available within the past 7 days and start at S$89 for one-way flights and S$125 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sat, 7 Feb - Sat, 14 Feb
PSC
Pasco
SEA
Seattle
S$125 Return, found 3 days ago
S$125
Return
found 3 days ago
Select Delta flight, departing Sat, 7 Feb from Pasco to Seattle, returning Sat, 14 Feb, priced at S$125 found 3 days ago
Delta
Sat, 7 Feb - Sat, 14 Feb
PSC
Pasco
SEA
Seattle
S$177 Return, found 3 days ago
S$177
Return
found 3 days ago
Select Delta flight, departing Sat, 7 Feb from Pasco to Seattle, returning Sat, 14 Feb, priced at S$177 found 3 days ago
Delta
Sat, 7 Feb - Sat, 14 Feb
PSC
Pasco
SEA
Seattle
S$202 Return, found 3 days ago
S$202
Return
found 3 days ago
Select Delta flight, departing Sat, 7 Feb from Pasco to Seattle, returning Sat, 14 Feb, priced at S$202 found 3 days ago
American Airlines
Sat, 7 Feb - Sat, 14 Feb
PSC
Pasco
SEA
Seattle
S$229 Return, found 3 days ago
S$229
Return
found 3 days ago
Select American Airlines flight, departing Sat, 7 Feb from Pasco to Seattle, returning Sat, 14 Feb, priced at S$229 found 3 days ago
Delta
Sat, 7 Feb - Sat, 14 Feb
PSC
Pasco
SEA
Seattle
S$240 Return, found 3 days ago
S$240
Return
found 3 days ago
Select Delta flight, departing Sat, 7 Feb from Pasco to Seattle, returning Sat, 14 Feb, priced at S$240 found 3 days ago
Delta
Sat, 7 Feb - Sat, 14 Feb
PSC
Pasco
SEA
Seattle
S$253 Return, found 3 days ago
S$253
Return
found 3 days ago
Select Delta flight, departing Sat, 7 Feb from Pasco to Seattle, returning Sat, 14 Feb, priced at S$253 found 3 days ago
American Airlines
Sat, 7 Feb - Sat, 14 Feb
PSC
Pasco
SEA
Seattle
S$254 Return, found 3 days ago
S$254
Return
found 3 days ago
Select American Airlines flight, departing Sat, 7 Feb from Pasco to Seattle, returning Sat, 14 Feb, priced at S$254 found 3 days ago
American Airlines
Sat, 7 Feb - Sat, 14 Feb
PSC
Pasco
SEA
Seattle
S$267 Return, found 3 days ago
S$267
Return
found 3 days ago
Select American Airlines flight, departing Sat, 7 Feb from Pasco to Seattle, returning Sat, 14 Feb, priced at S$267 found 3 days ago
American Airlines
Sat, 7 Feb - Sat, 14 Feb
PSC
Pasco
SEA
Seattle
S$280 Return, found 3 days ago
S$280
Return
found 3 days ago
Select American Airlines flight, departing Sat, 7 Feb from Pasco to Seattle, returning Sat, 14 Feb, priced at S$280 found 3 days ago
United
Sat, 7 Feb - Sat, 14 Feb
PSC
Pasco
SEA
Seattle
S$489 Return, found 3 days ago
S$489
Return
found 3 days ago
Select United flight, departing Sat, 7 Feb from Pasco to Seattle, returning Sat, 14 Feb, priced at S$489 found 3 days ago

Find the cheapest month to fly from Pasco (PSC) to Seattle (SEA)

February is typically the cheapest month to fly

From S$102 - S$263 per traveller.
Pasco to Seattle route information
Origin airport
Tri-Cities
Destination airport
Seattle - Tacoma Intl.
Return price
S$125
Distance
274 km
Average flight time
1 hour 15 mins

Perfect flights from Pasco to Seattle

Your Journey from Pasco to Seattle

Start your unforgettable journey with Expedia. Our broad selection of flights from Pasco to Seattle caters to every travel need. Whether you're yearning for a romantic escape, a solo adventure, or a cultural immersion, we've got you covered.
 

Choosing Your Ideal Flight

With Expedia, you have access to a wide range of airlines, including Delta, American Airlines, United. Our selection of flights from Tri-Cities to Seattle - Tacoma Intl. caters to every traveler's requirements, ensuring your journey aligns with your schedule. With options from 20 airlines, you're bound to find the perfect flight.
 

Maximizing Value with Pasco to Seattle Flights

Experience the joy of finding cheap flights from Tri-Cities to Seattle - Tacoma Intl. that fit your budget. Keep an eye out for our special deals and discounts, and check our flexible one-way fares from S$89 and roundtrip prices from S$125*.
 

Pre-Flight Essentials

Ensure a smooth journey from Pasco to Seattle with Expedia. From information about check-in times and in-flight amenities to guidance on baggage policies, we provide all the essentials to prepare you for your flight.
 

Experience the Vibrant Seattle

Picture yourself stepping off the plane in Seattle and immersing yourself in the unique atmosphere of . From local markets to cultural festivals, each city offers its distinct charm. Make the most of your trip by exploring local attractions and indulging in the local cuisine. With Expedia, explore all this and more, tailored to your budget.
 

Added Convenience on Your Pasco to Seattle Flight

Traveling with Expedia is more than just a flight. We offer details about in-flight amenities, baggage policies, and more to ensure a smooth and hassle-free journey. Choose from our variety of airlines and embark on a memorable journey from Pasco to Seattle.
 

Beyond the Flight – Exploring Seattle

With Expedia, your adventure extends beyond the flight. Explore Seattle at your own pace by renting a car or booking a hotel. Discover hidden gems off the beaten path and create unforgettable memories.
 

Book Your Flight from Pasco to Seattle with Confidence

Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support make your travel experience seamless and stress-free. Embark on your journey from Pasco to Seattle with confidence. Book your travel arrangements with Expedia today.
 
*Note: Prices may vary based on availability and are subject to change.

Frequently asked questions

How much is a flight from PSC to Seattle - Tacoma Intl. Airport (SEA)?
If you're planning on travelling from PSC to Seattle - Tacoma Intl. Airport (SEA), round-trip journeys start from S$125. This figure is based on airfares advertised within the last 7 days on Expedia for flights departing within the next year, so don't wait around. Book now and save yourself money and time. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Tri-Cities Airport to Sea-Tac Airport?
We get that things come up unexpectedly, so we've made it as hassle-free as possible for you to cancel your trip online. Just visit the Customer Service Portal and follow the instructions.
How do I find cheap flights from PSC to Sea-Tac Airport that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for PSC to Seattle - Tacoma Intl. Airport (SEA) flights, you'll see a "no change fees" filter for you to select.
How far is the flight from PSC to Sea-Tac Airport?
Forget about a movie marathon on this flight — it's just 280 kilometres from Pasco to SeaTac. Find your seat, buckle up and you'll be touching down in next to no time.
Which airlines fly direct from Tri-Cities Airport to SEA?
A popular airline that flies from Tri-Cities Airport (PSC) to SEA is Alaska Airlines (AS). It offers 147 flights a month. Delta Air Lines (DL) is also worth a look. It offers 91 flights every month. Between these two airlines, you'll be able to find a good deal from Pasco to SeaTac.
Are Tri-Cities Airport to Sea-Tac Airport flight tickets cheaper when they're purchased at the last minute?
Booking last minute from PSC to SEA can be hit-or-miss. You may be able to score a great bargain, but then again, you could miss out altogether! If you'd rather start your trip planning early on, Expedia compares flight deals up to 12 months in advance. Just bear in mind that not all airlines issue their prices that far in advance. Our advice? Check back often as updates are made frequently.

Explore a world of travel with Expedia

*Available to Expedia members.