HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Seattle

$122+ Cheap flights from Pasco to Seattle (PSC - SEA)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/31. Fares are subject to change and may not be available on all flights or dates of travel.
PSC — SEA
Jul 31 — Aug 71
Fri 7/31
Fri 8/7
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Pasco to Seattle with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Pasco to Seattle

Cheapest flights from Pasco to Seattle
Explore the most affordable flight options available from Pasco to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 1, 2026.

This Alaska Airlines deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/265:29 pm
PSC
-
SEA
Nonstop1h 15m
Alaska Airlines
Wed 9/3012:15 pm
SEA
-
PSC
Nonstop1h 12m
Alaska Airlines
Deal found 6/30$227
This CheapOair deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/202:04 pm
PSC
-
SEA
Nonstop1h 07m
Alaska Airlines
Sat 9/269:06 am
SEA
-
PSC
Nonstop1h 13m
Alaska Airlines
Deal found 6/30$242
This Priceline deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/68:04 am
PSC
-
SEA
Nonstop1h 04m
Alaska Airlines
Thu 9/248:00 pm
SEA
-
PSC
Nonstop1h 01m
Alaska Airlines
Deal found 6/30$257
This Alaska Airlines deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/84:00 pm
PSC
-
SEA
1 stop2h 51m
Alaska Airlines
Sat 9/1210:23 am
SEA
-
PSC
1 stop5h 00m
Alaska Airlines
Deal found 6/28$277
This SmartFares deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/146:04 pm
PSC
-
SEA
Nonstop1h 06m
Alaska Airlines
Fri 8/218:00 pm
SEA
-
PSC
Nonstop1h 01m
Alaska Airlines
Deal found 6/30$279
This Priceline deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/186:04 pm
PSC
-
SEA
Nonstop1h 06m
Alaska Airlines
Tue 8/259:06 am
SEA
-
PSC
Nonstop1h 06m
Alaska Airlines
Deal found 6/29$287
This Orbitz deal was found by Cheapflights users on 6/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/54:01 pm
PSC
-
SEA
1 stop4h 32m
Alaska Airlines
Sun 10/1812:14 pm
SEA
-
PSC
Nonstop1h 04m
Alaska Airlines
Deal found 6/27$288

Find flight deals from Pasco to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Pasco (PSC) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 1, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$227
(Alaska Airlines)

One-way from

$122
(Kiwi.com)

Popular in

July

Cheapest in

January

Average price

$366

Good round-trip deal

$430 or less

Good one-way deal

$219 or less
Provider with most accurate pricing for Pasco Tri Cities-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Pasco Tri Cities-Seattle/Tacoma Intl flights.
Search Deals
From Pasco Tri Cities to Seattle/Tacoma Intl
Search Deals
One-way flight from Pasco Tri Cities to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($64 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($13 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals
Price to beat on a round-trip flight from Pasco Tri Cities to Seattle/Tacoma Intl.
Search Deals
Price to beat on a one-way flight from Pasco Tri Cities to Seattle/Tacoma Intl.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Pasco to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 1, 2026.
Use the filters below to find and compare flights from Pasco to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PascoSeattle

PSC - SEA

PSCSEA

Pasco Tri Cities

Tue 9/8

12:30 pm-1:45 pm

Nonstop1h 15m

Seattle/Tacoma Intl

Sat 9/12

10:35 am-11:50 am

Nonstop1h 15m

$227

PascoSeattle

PSC - SEA

PSCSEA

Pasco Tri Cities

Sat 9/26

4:00 pm-6:51 pm

1 stop2h 51m

Seattle/Tacoma Intl

Wed 9/30

12:15 pm-1:27 pm

Nonstop1h 12m

$237

PascoSeattle

PSC - SEA

PSCSEA

Pasco Tri Cities

Tue 9/8

4:00 pm-6:51 pm

1 stop2h 51m

Seattle/Tacoma Intl

Sat 9/12

10:23 am-3:23 pm

1 stop5h 00m

$277

PascoSeattle

PSC - SEA

PSCSEA

Pasco Tri Cities

Sun 9/20

5:20 am-9:10 am

1 stop3h 50m

Seattle/Tacoma Intl

Sat 9/26

12:30 pm-3:23 pm

1 stop2h 53m

$307

PascoSeattle

PSC - SEA

PSCSEA

Pasco Tri Cities

Tue 7/21

6:07 pm-7:13 pm

Nonstop1h 06m

Seattle/Tacoma Intl

Tue 7/21

10:40 pm-3:22 pm

1 stop16h 42m

$327
Quickest round-trip

PascoSeattle

PSC - SEA

PSCSEA

Pasco Tri Cities

Fri 7/17

6:15 am-7:20 am

Nonstop1h 05m

Seattle/Tacoma Intl

Sun 7/19

11:20 am-12:19 pm

Nonstop0h 59m

$347

PascoSeattle

PSC - SEA

PSCSEA

Pasco Tri Cities

Sat 7/25

12:56 pm-2:02 pm

Nonstop1h 06m

Seattle/Tacoma Intl

Sat 8/1

8:52 am-9:53 am

Nonstop1h 01m

$347
Cheapest one-way

PascoSeattle

PSC - SEA

PSCSEA

Pasco Tri Cities

Mon 8/24

4:00 pm-6:51 pm

1 stop2h 51m

$139

PascoSeattle

PSC - SEA

PSCSEA

Pasco Tri Cities

Wed 8/26

12:30 pm-1:50 pm

Nonstop1h 20m

$144
Quickest one-way

PascoSeattle

PSC - SEA

PSCSEA

Pasco Tri Cities

Fri 9/25

8:04 am-9:08 am

Nonstop1h 04m

$159

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/29

Showing 1-10 of 17 resultsSorted by cheapest first
1
2

Compare providers for flights from Pasco to Seattle

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Pasco to Seattle in July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
CheapOairPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Pasco-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Pasco-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Pasco-Seattle flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Pasco-Seattle flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Pasco-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Pasco to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Pasco with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Pasco to Seattle

What is the cheapest month to book a flight from Pasco to Seattle?

Currently, January is the cheapest month in which you can book a flight from Pasco to Seattle (average of $177). Flying from Pasco to Seattle in July is currently the most expensive (average of $366). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from PSC to SEA?

Find hourly flight availability from Pasco to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 1, 2026.

Unlike in the morning, when flights are generally more expensive, you can save up to 20% on flights from Pasco to Seattle by exploring options for tickets at noon.

What is the cheapest day to fly from Pasco to Seattle?

Use this chart to determine the cheapest time to fly round-trip from Pasco to Seattle. Price data was last updated on June 27, 2026.

Travelers seeking maximum savings on their Pasco to Seattle flight should consider departing on Tuesday at noon when fares are most often at their lowest. Tuesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost to fly round-trip from Pasco to Seattle?

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated July 1, 2026.
Read reviews from past customers who have flown Alaska Airlines and Delta from Pasco to Seattle. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
7.9
Good
12,603 reviews

Comfort

7.8

Boarding

8.1

Entertainment

7.0

Food

7.1

Crew

8.5

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2026

RDU - SEA

There was almost a 2 hour delay after arriving before our next flight. Also my husband needed a wheelchair and it seemed hard to get help.
Alaska Airlines
7.9
Good
12,603 reviews
Alaska Airlines
7.9
Good
12,603 reviews

Comfort

7.8

Boarding

8.1

Entertainment

7.0

Food

7.1

Crew

8.5

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2026

RDU - SEA

There was almost a 2 hour delay after arriving before our next flight. Also my husband needed a wheelchair and it seemed hard to get help.
Delta
7.8
Good
8,452 reviews
Alaska Airlines
7.9
Good
12,603 reviews

Comfort

7.8

Boarding

8.1

Entertainment

7.0

Food

7.1

Crew

8.5

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2026

RDU - SEA

There was almost a 2 hour delay after arriving before our next flight. Also my husband needed a wheelchair and it seemed hard to get help.

Related info for your journey

Find useful and relevant information for your journey from Pasco to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from Pasco to Seattle?

    Booking a flight from Pasco Tri Cities (PSC) to Seattle/Tacoma Intl (SEA) is your only option if you wish to fly from Pasco to Seattle. On a typical day, there are 23 flights from Tri Cities to Seattle/Tacoma Intl, all of which are around 1h 05m for a nonstop flight. You can also purchase a plane ticket from 2 airlines when you book a flight from Tri Cities to Seattle.

  • How popular is this Pasco to Seattle flight route?

    This flight path from Pasco Tri Cities to Seattle/Tacoma Intl was viewed by 55 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Pasco to Seattle?

    A quick flight from Pasco to Seattle can take about 1h 15m. Delta provides one of the quickest options available for as low as $227. Pasco and Seattle are separated by a distance of 171 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Pasco to Seattle round-trip?

    Flying on Delta is currently your cheapest option to Seattle, with prices starting at $92. Another option worth looking into is Alaska Airlines, starting at $107 round trip. Delta is currently priced 59% below the average price you’ll pay for this route.

  • What are the most reliable airlines from Pasco to Seattle?

    Consider Korean Air (96%), Hawaiian Airlines (96%) or American Airlines (92%) when booking your flight. These represent the most reliable airlines when flying from Pasco to Seattle.

  • What are the cheapest flights from Pasco to Seattle?

    Looking at all options, your cheapest flight can be booked for $199. While the most popular route (Pasco Tri Cities - Seattle/Tacoma Intl) can be booked for $282 on average, our data indicates $1,076 when flying from Pasco to Seattle.

  • Can I find deals for flights from Pasco to Seattle that include hotel bookings?

    Yes. In addition to deals on Pasco to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Pasco to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Pasco to Seattle.

  • Can I find deals for business class flights from Pasco to Seattle?

    Yes. Cheapflights offers flight deals from Pasco to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Pasco to Seattle?

    Currently, January is the cheapest month in which you can book a flight from Pasco to Seattle (average of $177). Flying from Pasco to Seattle in July is currently the most expensive (average of $366). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
SeaTac
Tacoma
Lacey
Leavenworth
Olympia
Ocean Shores
Edmonds
Snoqualmie
Tumwater
Tukwila
Renton
Kent
Lynnwood
Ellensburg
Fife
Marysville
Lakewood
Issaquah
Shoreline
Centralia

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 2 airlines flying from Pasco to Seattle

Discover the top 2 airlines that operate flights from Pasco to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 1, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$92Average$203FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$107Average$250FlexibilityNo cancel feeOn-time75%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
©2026 Cheapflights