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$144 Cheap Flights from Seattle (SEA) to Pasco (PSC)

View $144 flight on Wed, Sep 16, 2026Opens in a new window

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

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Cheap Flights from Seattle to Pasco (SEA-PSC)

Prices were available within the past 7 days and start at $144 for one-way flights and $227 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sat, Sep 19 - Wed, Sep 23
SEA
Seattle
PSC
Pasco
$227 Roundtrip, found 4 hours ago
$227
Roundtrip
found 4 hours ago
Select Delta flight, departing Sat, Sep 19 from Seattle to Pasco, returning Wed, Sep 23, priced at $227 found 4 hours ago
Alaska Airlines
Tue, Aug 25 - Sat, Aug 29
SEA
Seattle
PSC
Pasco
$231 Roundtrip, found 5 days ago
$231
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Tue, Aug 25 from Seattle to Pasco, returning Sat, Aug 29, priced at $231 found 5 days ago
Alaska Airlines
Sat, Sep 19 - Wed, Sep 23
SEA
Seattle
PSC
Pasco
$237 Roundtrip, found 4 hours ago
$237
Roundtrip
found 4 hours ago
Select Alaska Airlines flight, departing Sat, Sep 19 from Seattle to Pasco, returning Wed, Sep 23, priced at $237 found 4 hours ago
Alaska Airlines
Tue, Aug 25 - Sat, Aug 29
SEA
Seattle
PSC
Pasco
$241 Roundtrip, found 5 days ago
$241
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Tue, Aug 25 from Seattle to Pasco, returning Sat, Aug 29, priced at $241 found 5 days ago
Alaska Airlines
Wed, Aug 19 - Sun, Aug 30
SEA
Seattle
PSC
Pasco
$242 Roundtrip, found 1 hour ago
$242
Roundtrip
found 1 hour ago
Select Alaska Airlines flight, departing Wed, Aug 19 from Seattle to Pasco, returning Sun, Aug 30, priced at $242 found 1 hour ago
Alaska Airlines
Fri, Sep 4 - Sat, Sep 5
SEA
Seattle
PSC
Pasco
$244 Roundtrip, found 5 days ago
$244
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Fri, Sep 4 from Seattle to Pasco, returning Sat, Sep 5, priced at $244 found 5 days ago
Alaska Airlines
Fri, Sep 4 - Sat, Sep 5
SEA
Seattle
PSC
Pasco
$245 Roundtrip, found 5 days ago
$245
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Fri, Sep 4 from Seattle to Pasco, returning Sat, Sep 5, priced at $245 found 5 days ago
Alaska Airlines
Sat, Nov 14 - Sun, Nov 15
SEA
Seattle
PSC
Pasco
$247 Roundtrip, found 6 days ago
$247
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Sat, Nov 14 from Seattle to Pasco, returning Sun, Nov 15, priced at $247 found 6 days ago
American Airlines
Sat, Sep 19 - Wed, Sep 23
SEA
Seattle
PSC
Pasco
$297 Roundtrip, found 4 hours ago
$297
Roundtrip
found 4 hours ago
Select American Airlines flight, departing Sat, Sep 19 from Seattle to Pasco, returning Wed, Sep 23, priced at $297 found 4 hours ago
United
Thu, Aug 6 - Mon, Aug 10
SEA
Seattle
PSC
Pasco
$681 Roundtrip, found 11 hours ago
$681
Roundtrip
found 11 hours ago
Select United flight, departing Thu, Aug 6 from Seattle to Pasco, returning Mon, Aug 10, priced at $681 found 11 hours ago

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

January is typically the cheapest month to fly

From $98 - $477 per traveler.

What you need to know for your flight from Seattle - Tacoma Intl. to Tri-Cities

Seattle (SEA) to Pasco (PSC) at a glance

Travel from Seattle (SEA) to Pasco (PSC) with a range of airlines on this convenient domestic route. Evaluate various options for Seattle to Pasco flights, ensuring you find the itinerary that aligns with your budget and schedule as you visit Pasco's notable attractions. Discover essential information about flight time and fare flights from Seattle - Tacoma International Airport to Tri-Cities Airport for a smooth journey.

  • Fastest flight duration: around 1 hour non-stop
  • Route distance: roughly 150 miles (240 km)
  • Flights per week: around 15+ flights with multiple daily departures on average
  • Typical fares (one-way): economy tickets often range from $60–$295, depending on seasonality and how far ahead you book

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

According to recent traveler bookings, here are the top airlines preferred for non-stop flights from Seattle to Pasco. These selections allow you to easily compare prices, total travel times, and cabin classes to create the ideal itinerary tailored to your needs.

  • Alaska Airlines: This full-service airline provides non-stop flights, with one-way ticket prices generally between $60 and $300. It represents about 58% of all departures on this route, offering a total travel time of 1 hour.
  • Delta: Another full-service airline, Delta also offers non-stop flights, with one-way fares typically ranging from $60 to $305. It accounts for around 40% of the departures on this route, with a journey duration of 1 hour.
  • Hawaiian Airlines: As a full-service carrier, Hawaiian Airlines provides non-stop service, with one-way prices usually falling between $80 and $270. This airline makes up about 1% of departures on this route, featuring a total travel time of 1 hour.

Travelers flying from Seattle to Pasco can enhance their journey by upgrading their flight. Delta provides first class and premium economy options, while Alaska Airlines features first class and business class for a more luxurious experience.

Best time to fly from Seattle (SEA) to Pasco (PSC)

The most popular months for travelers flying from Seattle to Pasco are January, February, and December, when peak temperatures in Pasco reach up to 37.8°F in February. If you prefer quieter travel, consider August, the least busy and relatively cheaper time to visit with fewer crowds and temperatures around 78.8°F. For better deals, May usually offers the lowest average one-way fare around $145. Flight availability peaks in December, with approximately 19 flights per week, making it easier to find convenient departure times.

  • Cheapest time to fly: May usually offers good deals with average one-way fare around $145, roughly 12% cheaper than the yearly average.
  • More budget-friendly months to fly: November, January, and February typically offer average one-way fares roughly ranging from $146 to $158.
  • Most flight options: December has the highest number of flights from Seattle to Pasco, with approximately 19 flights per week, giving you more flexibility in scheduling your trip.
calendar iconMonthtemperature iconTemperaturecrowd level iconDemandflights iconWeekly Flightsprice iconAverage one-way Fare
January34.3°F (1.3°C)High17$151
February37.8°F (3.2°C)High16$158
March45.9°F (7.7°C)Average13$168
April53.8°F (12.1°C)Average12$177
May63.7°F (17.6°C)Average14$145
June71.4°F (21.9°C)Average16$169
July80.1°F (26.7°C)Average13$191
August78.8°F (26.0°C)Low12$162
September68.7°F (20.4°C)Low12$177
October55.2°F (12.9°C)Low12$174
November41.9°F (5.5°C)Average17$146
December33.4°F (0.8°C)High19$166

*Average one-way fare is based on Expedia flight booking data from January 2025 to April 2026 for the specified route and travel class and may change depending on availability, dates, and demand.

Alternative route from Seattle (SEA) to Pasco (PSC)

  • Seattle to Pasco (BFI-PSC): Boeing Field Airport (BFI) is located approximately 6 miles from Seattle-Tacoma International Airport (SEA), providing a convenient alternative for travelers heading to Pasco.

How to find the best prices for flights from Seattle (SEA) to Pasco (PSC)

Getting some of the best deals on flights from Seattle to Pasco is all about timing and flexibility. Here are some key tips to help you save:

  1. Best times to book and fly: cheaper fares are typically available when booking at least two months in advance, although most travelers tend to book between two to eight weeks ahead. Morning departures (5 am to 12 pm) usually offer lower prices, while evening flights (6 pm to 12 am) are more popular. Additionally, flying on Fridays provides both cheaper rates and increased demand.
  2. Set up price alerts: stay updated on price changes by using Expedia's Price Tracker. Receive alerts when fares drop for your selected route.
  3. Bundle and save: bundle your flight and hotel to save on Expedia, or unlock a hotel deal after booking your flight.* Find Pasco hotel and flight deals.
  4. Compare flight options: use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
  5. Stay flexible with dates: being open to different travel days can sometimes help you find better prices on flights and hotels.
  6. Think about luggage: nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your allowance before confirming your booking to avoid excess baggage fees at the airport.

*Members only. Savings vary and are not available on all bundles. Select hotels.

Arriving at Tri-Cities Airport from Seattle - Tacoma International Airport

Pasco welcomes travelers from Seattle with a range of transport options based on price, convenience, and proximity. For departures, Seattle - Tacoma International Airport is roughly a 20-minute drive (covering about 14 miles) from central Seattle. Here's how to reach Pasco efficiently:

  • Hotel transfer: Transfers offer a convenient way to reach your hotel in Pasco, with options including free hotel shuttles and private rides, which can be arranged in advance with your hotel.
  • Car rental: Renting a car from Tri-Cities Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at Tri-Cities Airport on Expedia.
  • Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.
  • Public transportation: From Tri-Cities Airport, Pasco Station, a train station, is located about 3.5 miles away by car, while Burbank Seaport, a seaport, is situated approximately 8.3 miles away, also reachable by car.

Frequently asked questions

How much does a flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Pasco, WA (PSC-Tri-Cities) cost?
You can find cheap one-way flights from $144 and cheap return flights from $227 Seattle, WA (SEA-Seattle - Tacoma Intl.) to Pasco, WA (PSC-Tri-Cities) with Expedia. One-way flights usually range from $100 to $903, and return flights typically cost between $173 and $914. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Seattle, WA (SEA-Seattle - Tacoma Intl.) to Pasco, WA (PSC-Tri-Cities) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Pasco, WA (PSC-Tri-Cities)?
April is the cheapest month to fly from Seattle (SEA) to Pasco (PSC), with average round-trip fares around $157. This price is about 22% lower than the average throughout the year, as April often sees reduced travel demand. Other economical months to fly from Seattle to Pasco include January and August.*Averages based on flights available on Expedia in the last year.
Which airlines fly direct from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Pasco, WA (PSC-Tri-Cities)?
2 airlines operate nonstop service from SEA to PSC:

  • Delta operates around 22 direct flights from SEA to PSC every week
  • Hawaiian Airlines operates around 28 direct flights from SEA to PSC every week

What is the cheapest airline that flies from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Pasco, WA (PSC-Tri-Cities)?
American Airlines is one of the cheapest airlines offering nonstop flights from Seattle - Tacoma Intl. (SEA) to Tri-Cities (PSC), with round-trip tickets starting from around $250. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Pasco, WA (PSC-Tri-Cities)?
To find a cheap flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Pasco, WA (PSC-Tri-Cities), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Pasco, WA (PSC-Tri-Cities)?
The best airline to fly with from Seattle, WA (SEA) to Pasco, WA (PSC) will differ from traveler to traveler. If you like to fly early, Alaska Airlines offers early morning flights. If price is the most important factor, Delta typically offers the lowest fares. Hawaiian Airlines offers the most daily flights from SEA to PSC, which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Pasco, WA (PSC-Tri-Cities)?
The best time to fly from Seattle, WA (SEA) to Pasco, WA (PSC) is typically in January or April, with average return flight prices around $157. These months are often less crowded, providing a more enjoyable travel experience at a lower cost.*Prices based on flights available on Expedia in the last year.
How many flights per day from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Pasco, WA (PSC-Tri-Cities)?
On average, there are around 3 nonstop flights per day from Seattle - Tacoma Intl. (SEA) to Tri-Cities (PSC). For more options, look at flights that include layovers.
What is the earliest flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Pasco, WA (PSC-Tri-Cities)?
The earliest flight from Seattle - Tacoma International Airport (SEA) to Pasco (PSC) typically departs at around 5:00 AM, operated by United Airlines. This service is seasonal, active in January and December, allowing you to start your day early and maximize your time in Pasco. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Pasco, WA (PSC-Tri-Cities)?
The most popular departure times for flights from Seattle - Tacoma International Airport (SEA) to Pasco (PSC) are in the late morning, from 9am to 12pm. About 21% of passengers choose to fly during this time. Airlines like Delta and Alaska Airlines frequently operate flights in this window. This timing is favored because it allows travelers to arrive in Pasco with plenty of time to enjoy the afternoon.
How long does it take to fly from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Pasco, WA (PSC-Tri-Cities)?
Flying nonstop from SEA to PSC takes around 1 hour 20 minutes, with the route covering approximately 171 miles. Flights with a layover typically take 6 hours 40 minutes longer than direct options. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Pasco, WA (PSC-Tri-Cities)?
You can fly first class between SEA and PSC. First class cabins are available on:

  • United Airlines
  • Delta Air Lines
  • American Airlines

How do I earn miles on a Seattle, WA (SEA-Seattle - Tacoma Intl.) to Pasco, WA (PSC-Tri-Cities) flight with Expedia?
It's easy to earn miles on a Seattle, WA (SEA-Seattle - Tacoma Intl.) to Pasco, WA (PSC-Tri-Cities) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Pasco from Seattle - Tacoma Intl. (SEA)?
If you're planning to travel to Pasco from Seattle - Tacoma Intl. (SEA), you can fly into Tri-Cities (PSC) Some flights may connect through major hubs like Rogue Valley Intl. (MFR), San Francisco Intl. (SFO), Portland Intl. (PDX) before reaching Pasco. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Pasco, WA (PSC-Tri-Cities) at the last minute?
Typically, booking a last minute flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Pasco, WA (PSC-Tri-Cities) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Seattle, WA (SEA-Seattle - Tacoma Intl.) to Pasco, WA (PSC-Tri-Cities) flight and hotel package?
Securing a Seattle, WA (SEA-Seattle - Tacoma Intl.) to Pasco, WA (PSC-Tri-Cities) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Pasco, WA (PSC-Tri-Cities)?
If you booked your Seattle, WA (SEA-Seattle - Tacoma Intl.) to Pasco, WA (PSC-Tri-Cities) flight within the last 24 hours, you may be able to modify or cancel 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, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Seattle - Tacoma Intl.
Destination airport
Tri-Cities
Airlines serving
Alaska Airlines, American Airlines, Delta, United
Roundtrip price
$225
Distance
171 mi
Average flight time
1 hour 3 mins

Book with confidence

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 September. 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 2026. You can also book with separate airlines for your outbound and return journeys, from $144 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.

 

Seattle to Pasco Flights

*Flight schedules are subject to change.

*Available to One Key members.

 

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