$70 Cheap Flights from Seattle (SEA) to Pasco (PSC)

View $70 flight on Sat, Apr 18, 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 $70 for one-way flights and $99 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sat, Apr 18 - Mon, Apr 20
SEA
Seattle
PSC
Pasco
$99 Roundtrip, just found
$99
Roundtrip
just found
Select Delta flight, departing Sat, Apr 18 from Seattle to Pasco, returning Mon, Apr 20, priced at $99 just found
Alaska Airlines
Sat, May 2 - Wed, May 6
SEA
Seattle
PSC
Pasco
$109 Roundtrip, found 1 day ago
$109
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Sat, May 2 from Seattle to Pasco, returning Wed, May 6, priced at $109 found 1 day ago
Delta
Mon, May 11 - Fri, May 15
SEA
Seattle
PSC
Pasco
$119 Roundtrip, found 1 day ago
$119
Roundtrip
found 1 day ago
Select Delta flight, departing Mon, May 11 from Seattle to Pasco, returning Fri, May 15, priced at $119 found 1 day ago
Alaska Airlines
Sat, May 9 - Wed, May 13
SEA
Seattle
PSC
Pasco
$120 Roundtrip, found 4 days ago
$120
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Sat, May 9 from Seattle to Pasco, returning Wed, May 13, priced at $120 found 4 days ago
Delta
Wed, Apr 22 - Sat, Apr 25
SEA
Seattle
PSC
Pasco
$128 Roundtrip, found 1 day ago
$128
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Apr 22 from Seattle to Pasco, returning Sat, Apr 25, priced at $128 found 1 day ago
Alaska Airlines
Thu, Apr 30 - Mon, May 4
SEA
Seattle
PSC
Pasco
$129 Roundtrip, found 4 days ago
$129
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Thu, Apr 30 from Seattle to Pasco, returning Mon, May 4, priced at $129 found 4 days ago
Alaska Airlines
Fri, Apr 24 - Sun, Apr 26
SEA
Seattle
PSC
Pasco
$138 Roundtrip, found 1 day ago
$138
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Fri, Apr 24 from Seattle to Pasco, returning Sun, Apr 26, priced at $138 found 1 day ago
American Airlines
Tue, May 12 - Sat, May 16
SEA
Seattle
PSC
Pasco
$237 Roundtrip, found 5 hours ago
$237
Roundtrip
found 5 hours ago
Select American Airlines flight, departing Tue, May 12 from Seattle to Pasco, returning Sat, May 16, priced at $237 found 5 hours ago
Hawaiian Airlines
Sun, Mar 15 - Wed, Mar 18
SEA
Seattle
PSC
Pasco
$422 Roundtrip, found 5 days ago
$422
Roundtrip
found 5 days ago
Select Hawaiian Airlines flight, departing Sun, Mar 15 from Seattle to Pasco, returning Wed, Mar 18, priced at $422 found 5 days ago
United
Tue, Jun 9 - Sat, Jun 13
SEA
Seattle
PSC
Pasco
$575 Roundtrip, found 1 hour ago
$575
Roundtrip
found 1 hour ago
Select United flight, departing Tue, Jun 9 from Seattle to Pasco, returning Sat, Jun 13, priced at $575 found 1 hour ago

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Alternative airports near Pasco

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

Select flight to Tri-Cities PSC. Cheapest and Closest option available. Average driving time to city center is 4 minutes. Flights from $382
PSC
Tri-Cities
CheapestClosest
Average driving time to city center4 min
Flights from $382

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 $70 and cheap return flights from $99 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
$99
Distance
171 mi
Average flight time
1 hour 2 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 April. 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 $70 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.