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Cheap flights from Pasco to Seattle from $129

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Pasco to Seattle departing on 11/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Pasco to Seattle

Cheap round-trip flights

Enter your travel dates to find the best prices.
Alaska Airlines Logo
8:04 am - 9:08 amPSC  Pasco Tri Cities-SEA Seattle/Tacoma Intl
1h 04mnonstop
Alaska Airlines Logo
10:50 pm - 11:53 pmSEA  Seattle/Tacoma Intl-PSC Pasco Tri Cities
1h 03mnonstop
$247Alaska Airlines
Sat, Sep 19 - Sat, Sep 26
Alaska Airlines Logo
10:47 am - 11:58 amPSC  Pasco Tri Cities-SEA Seattle/Tacoma Intl
1h 11mnonstop
Alaska Airlines Logo
9:05 am - 10:10 amSEA  Seattle/Tacoma Intl-PSC Pasco Tri Cities
1h 05mnonstop
$247Alaska Airlines
Sat, Oct 10 - Wed, Oct 14
Delta Logo
3:25 pm - 4:41 pmPSC  Pasco Tri Cities-SEA Seattle/Tacoma Intl
1h 16mnonstop
Delta Logo
1:30 pm - 2:44 pmSEA  Seattle/Tacoma Intl-PSC Pasco Tri Cities
1h 14mnonstop
$247Delta
Tue, Sep 29 - Tue, Oct 6
Delta Logo
5:25 am - 6:38 amPSC  Pasco Tri Cities-SEA Seattle/Tacoma Intl
1h 13mnonstop
Delta Logo
1:30 pm - 2:47 pmSEA  Seattle/Tacoma Intl-PSC Pasco Tri Cities
1h 17mnonstop
$247Delta
Sat, Sep 19 - Sat, Sep 26
Alaska Airlines Logo
5:29 pm - 6:44 pmPSC  Pasco Tri Cities-SEA Seattle/Tacoma Intl
1h 15mnonstop
Alaska Airlines Logo
10:53 pm - 11:52 pmSEA  Seattle/Tacoma Intl-PSC Pasco Tri Cities
0h 59mnonstop
$247Alaska Airlines
Tue, Sep 29 - Tue, Oct 6
Delta Logo
3:25 pm - 4:41 pmPSC  Pasco Tri Cities-SEA Seattle/Tacoma Intl
1h 16mnonstop
Delta Logo
10:40 am - 11:56 amSEA  Seattle/Tacoma Intl-PSC Pasco Tri Cities
1h 16mnonstop
$247Delta
Wed, Sep 16 - Wed, Sep 23
Alaska Airlines Logo
10:56 am - 12:10 pmPSC  Pasco Tri Cities-SEA Seattle/Tacoma Intl
1h 14mnonstop
Alaska Airlines Logo
9:06 am - 10:19 amSEA  Seattle/Tacoma Intl-PSC Pasco Tri Cities
1h 13mnonstop
$247Alaska Airlines
Wed, Sep 23 - Tue, Sep 29
Multiple Airlines Logo
1:51 pm - 10:39 amPSC  Pasco Tri Cities-SEA Seattle/Tacoma Intl
20h 48m2 stops Santa Ana J. Wayne/Orange Cnty Las Vegas Harry Reid Intl
Multiple Airlines Logo
9:29 pm - 8:36 pmSEA  Seattle/Tacoma Intl-PSC Pasco Tri Cities
23h 07m1 stop Las Vegas Harry Reid Intl
$360Multiple Airlines
Thu, Aug 27 - Thu, Sep 3
Multiple Airlines Logo
7:13 pm - 10:39 amPSC  Pasco Tri Cities-SEA Seattle/Tacoma Intl
15h 26m1 stop Las Vegas Harry Reid Intl
Multiple Airlines Logo
9:29 pm - 5:14 pmSEA  Seattle/Tacoma Intl-PSC Pasco Tri Cities
19h 45m1 stop Las Vegas Harry Reid Intl
$378Multiple Airlines
Mon, Aug 24 - Thu, Aug 27
American Airlines Logo
8:04 am - 9:08 amPSC  Pasco Tri Cities-SEA Seattle/Tacoma Intl
1h 04mnonstop
American Airlines Logo
12:14 pm - 1:18 pmSEA  Seattle/Tacoma Intl-PSC Pasco Tri Cities
1h 04mnonstop
$412American Airlines
Thu, Sep 24 - Wed, Oct 21

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Alaska Airlines flights from Pasco to Seattle

Our best Alaska Airlines deals on Pasco to Seattle flight tickets
Alaska Airlines
Sep 29
PSC4:00 pmPasco Tri Cities
2h 51m
1 stop
SEA6:51 pmSeattle/Tacoma Intl
Oct 6
SEA10:53 pmSeattle/Tacoma Intl
0h 59m
PSC11:52 pmPasco Tri Cities
$257
Alaska Airlines
Sep 5
PSC5:20 amPasco Tri Cities
15h 12m
2 stops
SEA8:32 pmSeattle/Tacoma Intl
Sep 5
SEA10:50 pmSeattle/Tacoma Intl
1h 03m
PSC11:53 pmPasco Tri Cities
$259
Alaska Airlines
Sep 26
PSC5:29 pmPasco Tri Cities
1h 15m
SEA6:44 pmSeattle/Tacoma Intl
Sep 27
SEA9:06 amSeattle/Tacoma Intl
1h 13m
PSC10:19 amPasco Tri Cities
$261

Delta flights from Pasco to Seattle

Our best Delta deals on Pasco to Seattle flight tickets
Delta
Sep 19
PSC5:25 amPasco Tri Cities
1h 13m
SEA6:38 amSeattle/Tacoma Intl
Sep 26
SEA1:30 pmSeattle/Tacoma Intl
1h 17m
PSC2:47 pmPasco Tri Cities
$247
Delta
Sep 10
PSC12:36 pmPasco Tri Cities
1h 15m
SEA1:51 pmSeattle/Tacoma Intl
Sep 12
SEA10:40 amSeattle/Tacoma Intl
1h 16m
PSC11:56 amPasco Tri Cities
$262
Delta
Sep 18
PSC12:36 pmPasco Tri Cities
1h 15m
SEA1:51 pmSeattle/Tacoma Intl
Sep 20
SEA10:45 pmSeattle/Tacoma Intl
1h 09m
PSC11:54 pmPasco Tri Cities
$277

momondo 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, momondo users made 832,500 searches. Data last updated August 10, 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
Quickest round-trip

PascoSeattle

PSC Pasco Tri Cities - SEA Seattle/Tacoma Intl

PSCSEA

Pasco Tri Cities

Sat 9/19

8:04 am-9:08 am

Nonstop1h 04m

Seattle/Tacoma Intl

Sat 9/26

10:50 pm-11:53 pm

Nonstop1h 03m

$247

PascoSeattle

PSC Pasco Tri Cities - SEA Seattle/Tacoma Intl

PSCSEA

Pasco Tri Cities

Sat 10/10

10:47 am-11:58 am

Nonstop1h 11m

Seattle/Tacoma Intl

Wed 10/14

9:05 am-10:10 am

Nonstop1h 05m

$247

PascoSeattle

PSC Pasco Tri Cities - SEA Seattle/Tacoma Intl

PSCSEA

Pasco Tri Cities

Tue 9/29

3:25 pm-4:41 pm

Nonstop1h 16m

Seattle/Tacoma Intl

Tue 10/6

1:30 pm-2:44 pm

Nonstop1h 14m

$247

PascoSeattle

PSC Pasco Tri Cities - SEA Seattle/Tacoma Intl

PSCSEA

Pasco Tri Cities

Sat 9/19

5:25 am-6:38 am

Nonstop1h 13m

Seattle/Tacoma Intl

Sat 9/26

1:30 pm-2:47 pm

Nonstop1h 17m

$247

PascoSeattle

PSC Pasco Tri Cities - SEA Seattle/Tacoma Intl

PSCSEA

Pasco Tri Cities

Tue 9/29

5:29 pm-6:44 pm

Nonstop1h 15m

Seattle/Tacoma Intl

Tue 10/6

10:53 pm-11:52 pm

Nonstop0h 59m

$247

PascoSeattle

PSC Pasco Tri Cities - SEA Seattle/Tacoma Intl

PSCSEA

Pasco Tri Cities

Wed 9/16

3:25 pm-4:41 pm

Nonstop1h 16m

Seattle/Tacoma Intl

Wed 9/23

10:40 am-11:56 am

Nonstop1h 16m

$247

PascoSeattle

PSC Pasco Tri Cities - SEA Seattle/Tacoma Intl

PSCSEA

Pasco Tri Cities

Wed 9/23

10:56 am-12:10 pm

Nonstop1h 14m

Seattle/Tacoma Intl

Tue 9/29

9:06 am-10:19 am

Nonstop1h 13m

$247

PascoSeattle

PSC Pasco Tri Cities - SEA Seattle/Tacoma Intl

PSCSEA

Pasco Tri Cities

Thu 8/27

1:51 pm-10:39 am

2 stops20h 48m

Seattle/Tacoma Intl

Thu 9/3

9:29 pm-8:36 pm

1 stop23h 07m

$360

PascoSeattle

PSC Pasco Tri Cities - SEA Seattle/Tacoma Intl

PSCSEA

Pasco Tri Cities

Mon 8/24

7:13 pm-10:39 am

1 stop15h 26m

Seattle/Tacoma Intl

Thu 8/27

9:29 pm-5:14 pm

1 stop19h 45m

$378

PascoSeattle

PSC Pasco Tri Cities - SEA Seattle/Tacoma Intl

PSCSEA

Pasco Tri Cities

Thu 9/24

8:04 am-9:08 am

Nonstop1h 04m

Seattle/Tacoma Intl

Wed 10/21

12:14 pm-1:18 pm

Nonstop1h 04m

$412

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Pasco to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Seattle?

In general, January is the cheapest month to fly from Pasco to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $177. If you don’t want to visit Seattle in January, then you should wait until April to fly from Pasco, when ticket prices are also cheap, with an average price of $179.

What is the cheapest day to depart on your flight to Seattle?

On average, the least expensive day to fly to Seattle from Pasco is on a Saturday. momondo users have found tickets for Saturday departures for as low as $502. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from Pasco because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $572.

What is the cheapest time of day to depart on your flight to Seattle?

Flying to Seattle from Pasco at noon is the least expensive time of day to depart. momondo users have found prices as low as $448 when looking at flights departing at noon. Flights to Seattle are more costly in the morning, with an average ticket price of $563. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Pasco Tri Cities to Seattle/Tacoma Intl flight route?

Fly from Pasco Tri Cities to Seattle/Tacoma Intl for the best Pasco Tri Cities - Seattle/Tacoma Intl flight prices

What cabin class options are available on Pasco to Seattle flights?

There are 4 cabin classes available to choose from on Pasco to Seattle flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Pasco to Seattle flight prices changed over time?

As of August 2026, prices for Pasco to Seattle flights are approximately 132% more expensive when compared to flights at the same time last year.

When to book flights from Pasco to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from Pasco to Seattle according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Pasco to Seattle (PSC to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Pasco to Seattle

Best Price Found

$208

Fastest flight time

1h 07m

Direct flights

Every day

Airports in Seattle

1 airport
The best one-way flight to Seattle from Pasco in the past 72 hours is $208. The best round-trip flight deal from Pasco to Seattle found on momondo in the last 72 hours is $430.
The fastest flight from Pasco to Seattle takes 1h 07m
Direct flights go from Pasco to Seattle every day.
There is 1 airport in Seattle. From Pasco there are direct flights to Seattle/Tacoma Intl (SEA).
Search flight deals

Frequently asked questions about flying from Pasco to Seattle

  • How far is Pasco Tri Cities to Seattle/Tacoma Intl by plane?

    There are 179.8 mi between Pasco Tri Cities and Seattle/Tacoma Intl. 1h 07m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Pasco Tri Cities Airport to Seattle/Tacoma Intl Airport?

    Prices for flights from Pasco Tri Cities Airport to Seattle/Tacoma Intl Airport refresh daily.

  • How many operators does momondo search for flights from Pasco Tri Cities Airport to Seattle/Tacoma Intl Airport?

  • How old do you have to be to fly from Pasco Tri Cities Airport to Seattle/Tacoma Intl Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Pasco Tri Cities Airport to Seattle/Tacoma Intl Airport.

  • What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

    The travel and health documents you'll need for your trip to Seattle/Tacoma Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Pasco to Seattle?

  • What is the most popular airline from Pasco to Seattle?

Best airlines flying from Pasco to Seattle

Compare and see reviews for airlines that fly from Pasco to Seattle with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $92Free CancellationRating
7.8
8,497 reviews
Search Delta flights
Alaska AirlinesPriceFrom $107Free CancellationRating
7.9
12,790 reviews
Search Alaska Airlines flights

  • Alaska Airlines Flights From Pasco to Seattle

    Alaska Airlines is one of the most popular airlines flying from Pasco to Seattle, operating 20 flights/week on average for this route. A good Alaska Airlines flight deal for Pasco to Seattle starts from $107 round-trip, up to an average price of $261. Our users have rated Alaska Airlines at 7.9/10.

  • Delta Flights From Pasco to Seattle

    The best Delta deal for Pasco to Seattle flight tickets found on momondo in the last 72 hours was $92, round-trip. It should be noted that an average Delta flight deal for this route in this time was higher, at $207 round-trip. Delta operates 11 flights out of Pasco into Seattle in an average week, so prices vary by time and availability. 8,497 Delta reviews by users on momondo have scored the airline at 7.8/10.

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
Leavenworth
SeaTac
Ocean Shores
Renton
Olympia
Kent
Lynnwood
Redmond
Lakewood
Federal Way
Puyallup
Tukwila
Fife
Cle Elum
Marysville
Kirkland
Centralia
Shoreline
Lacey

Why use momondo?

Why should I use momondo to find a flight deal from Pasco to Seattle?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Pasco to Seattle. momondo saves you time and could save you money on your trip.

Can I find flights from Pasco to Seattle with flexible booking policies on momondo?

Yes. All flights to Seattle from Pasco on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Pasco to Seattle?

Once all potential Pasco to Seattle flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Pasco to Seattle right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Pasco to Seattle now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Seattle and let you know when they change.

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