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Cheap flights from Port of Spain to Seattle from $491

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Port of Spain to Seattle departing on 12/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Port of Spain to Seattle

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
1:30 am - 12:59 am
POS
-
SEA
27h 29m2 stops
United Airlines Logo
5:00 am - 12:23 am
SEA
-
POS
15h 23m2 stops
$638United Airlines
Sat, Jan 24 - Sun, Feb 1
United Airlines Logo
12:30 am - 7:25 pm
POS
-
SEA
21h 55m1 stop
United Airlines Logo
6:45 am - 11:23 pm
SEA
-
POS
13h 38m1 stop
$640United Airlines
Mon, Mar 16 - Tue, Mar 24
American Airlines Logo
3:18 pm - 9:41 am
POS
-
SEA
21h 23m2 stops
American Airlines Logo
10:16 pm - 2:18 pm
SEA
-
POS
13h 02m1 stop
$644American Airlines
Tue, Mar 17 - Tue, Mar 24
Air Canada Logo
2:20 am - 7:16 pm
POS
-
SEA
20h 56m2 stops
Air Canada Logo
5:50 am - 1:20 am
SEA
-
POS
15h 30m2 stops
$798Air Canada
Tue, Jan 20 - Sun, Jan 25
Multiple Airlines Logo
9:10 am - 12:30 pm
POS
-
SEA
31h 20m2 stops
Multiple Airlines Logo
8:44 am - 6:55 pm
SEA
-
POS
30h 11m1 stop
$809Multiple Airlines
Mon, Dec 29 - Tue, Jan 13
United Airlines Logo
1:30 am - 12:59 am
POS
-
SEA
27h 29m2 stops
United Airlines Logo
12:35 pm - 12:23 am
SEA
-
POS
55h 48m3 stops
$818United Airlines
Sun, Dec 28 - Tue, Jan 13
Multiple Airlines Logo
1:20 am - 7:18 pm
POS
-
SEA
20h 58m2 stops
Multiple Airlines Logo
7:05 am - 4:40 am
SEA
-
POS
18h 35m3 stops
$866Multiple Airlines
Tue, Mar 31 - Thu, Apr 30
American Airlines Logo
4:46 pm - 11:30 am
POS
-
SEA
22h 44m1 stop
American Airlines Logo
11:11 pm - 10:48 pm
SEA
-
POS
19h 37m1 stop
$935American Airlines
Mon, Dec 29 - Tue, Jan 13
Multiple Airlines Logo
7:05 am - 2:20 pm
POS
-
SEA
35h 15m3 stops
Multiple Airlines Logo
5:50 am - 1:20 am
SEA
-
POS
15h 30m2 stops
$1,031Multiple Airlines
Sun, Jan 25 - Sun, Feb 1
United Airlines Logo
1:30 am - 6:06 pm
POS
-
SEA
20h 36m2 stops
United Airlines Logo
11:59 pm - 12:23 am
SEA
-
POS
20h 24m1 stop
$1,119United Airlines
Mon, Dec 22 - Fri, Jan 2

United Airlines flights from Port of Spain to Seattle

Our best United Airlines deals on Port of Spain to Seattle flight tickets
United Airlines
Jan 24
POS1:30 amPort of Spain Piarco Intl
27h 29m
2 stops
SEA12:59 amSeattle/Tacoma Intl
Feb 1
SEA5:00 amSeattle/Tacoma Intl
15h 23m
2 stops
POS12:23 amPort of Spain Piarco Intl
$638
Find similar
United Airlines
Mar 16
POS12:30 amPort of Spain Piarco Intl
21h 55m
1 stop
SEA7:25 pmSeattle/Tacoma Intl
Mar 24
SEA6:45 amSeattle/Tacoma Intl
13h 38m
1 stop
POS11:23 pmPort of Spain Piarco Intl
$640
Find similar
United Airlines
Dec 28
POS1:30 amPort of Spain Piarco Intl
27h 29m
2 stops
SEA12:59 amSeattle/Tacoma Intl
Jan 13
SEA12:35 pmSeattle/Tacoma Intl
55h 48m
3 stops
POS12:23 amPort of Spain Piarco Intl
$818
Find similar

American Airlines flights from Port of Spain to Seattle

Our best American Airlines deals on Port of Spain to Seattle flight tickets
American Airlines
Mar 17
POS3:18 pmPort of Spain Piarco Intl
21h 23m
2 stops
SEA9:41 amSeattle/Tacoma Intl
Mar 24
SEA10:16 pmSeattle/Tacoma Intl
13h 02m
1 stop
POS2:18 pmPort of Spain Piarco Intl
$644
Find similar
American Airlines
Dec 29
POS4:46 pmPort of Spain Piarco Intl
22h 44m
1 stop
SEA11:30 amSeattle/Tacoma Intl
Jan 13
SEA11:11 pmSeattle/Tacoma Intl
19h 37m
1 stop
POS10:48 pmPort of Spain Piarco Intl
$935
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Port of Spain 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 December 11, 2025.
Use the filters below to find and compare flights from Port of Spain to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Port of SpainSeattle

POS - SEA

POSSEA

Port of Spain Piarco Intl

Sat 1/24

1:30 am-12:59 am

2 stops27h 29m

Seattle/Tacoma Intl

Sun 2/1

5:00 am-12:23 am

2 stops15h 23m

$638

Port of SpainSeattle

POS - SEA

POSSEA

Port of Spain Piarco Intl

Mon 3/16

12:30 am-7:25 pm

1 stop21h 55m

Seattle/Tacoma Intl

Tue 3/24

6:45 am-11:23 pm

1 stop13h 38m

$640

Port of SpainSeattle

POS - SEA

POSSEA

Port of Spain Piarco Intl

Tue 3/17

3:18 pm-9:41 am

2 stops21h 23m

Seattle/Tacoma Intl

Tue 3/24

10:16 pm-2:18 pm

1 stop13h 02m

$644

Port of SpainSeattle

POS - SEA

POSSEA

Port of Spain Piarco Intl

Tue 1/20

2:20 am-7:16 pm

2 stops20h 56m

Seattle/Tacoma Intl

Sun 1/25

5:50 am-1:20 am

2 stops15h 30m

$798

Port of SpainSeattle

POS - SEA

POSSEA

Port of Spain Piarco Intl

Mon 12/29

9:10 am-12:30 pm

2 stops31h 20m

Seattle/Tacoma Intl

Tue 1/13

8:44 am-6:55 pm

1 stop30h 11m

$809

Port of SpainSeattle

POS - SEA

POSSEA

Port of Spain Piarco Intl

Sun 12/28

1:30 am-12:59 am

2 stops27h 29m

Seattle/Tacoma Intl

Tue 1/13

12:35 pm-12:23 am

3 stops55h 48m

$818

Port of SpainSeattle

POS - SEA

POSSEA

Port of Spain Piarco Intl

Tue 3/31

1:20 am-7:18 pm

2 stops20h 58m

Seattle/Tacoma Intl

Thu 4/30

7:05 am-4:40 am

3 stops18h 35m

$866

Port of SpainSeattle

POS - SEA

POSSEA

Port of Spain Piarco Intl

Mon 12/29

4:46 pm-11:30 am

1 stop22h 44m

Seattle/Tacoma Intl

Tue 1/13

11:11 pm-10:48 pm

1 stop19h 37m

$935

Port of SpainSeattle

POS - SEA

POSSEA

Port of Spain Piarco Intl

Sun 1/25

7:05 am-2:20 pm

3 stops35h 15m

Seattle/Tacoma Intl

Sun 2/1

5:50 am-1:20 am

2 stops15h 30m

$1,031

Port of SpainSeattle

POS - SEA

POSSEA

Port of Spain Piarco Intl

Mon 12/22

1:30 am-6:06 pm

2 stops20h 36m

Seattle/Tacoma Intl

Fri 1/2

11:59 pm-12:23 am

1 stop20h 24m

$1,119

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Port of Spain 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 typical price of a round-trip flight between Port of Spain and Seattle?

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

On average, the least expensive day to fly to Seattle from Port of Spain is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $622. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Monday is the most expensive day to depart from Port of Spain because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $973.

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

Flying to Seattle from Port of Spain in the evening is the least expensive time of day to depart. momondo users have found prices as low as $718 when looking at flights departing in the evening. Flights to Seattle are more costly in the morning, with an average ticket price of $981. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

When to book flights from Port of Spain to Seattle

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

Cheap Port of Spain to Seattle (POS to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Port of Spain to Seattle

Fastest flight time

21h 40m

Direct flights

None
The fastest flight from Port of Spain to Seattle takes 21h 40m
There are no direct flights from Port of Spain to Seattle. There are no popular flight routes from Port of Spain to Seattle.
Search flight deals

  • How far is Port of Spain Piarco Intl to Seattle/Tacoma Intl by plane?

    A flight from Port of Spain Piarco Intl to Seattle/Tacoma Intl will travel around 4325.1 mi. By plane, this route typically takes 21h 40m.

  • When did momondo last update prices for flights from Port of Spain Piarco Intl Airport to Seattle/Tacoma Intl Airport?

    Prices for flights from Port of Spain Piarco Intl Airport to Seattle/Tacoma Intl Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Port of Spain Piarco Intl Airport to Seattle/Tacoma Intl Airport?

  • How old do you have to be to fly from Port of Spain Piarco Intl Airport to Seattle/Tacoma Intl Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Port of Spain Piarco Intl Airport to Seattle/Tacoma Intl Airport.

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

    The required travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Port of Spain to Seattle?

Best airlines flying from Port of Spain to Seattle

Compare and see reviews for airlines that fly from Port of Spain to Seattle with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $631Free CancellationRating
7.4
9,095 reviews
Search United Airlines flights

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
Lynnwood
Kent
Puyallup
Marysville
Redmond
Tukwila
Cle Elum
Federal Way
Lakewood
Fife
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Kirkland
Centralia
Shoreline

Why use momondo?

Why should I use momondo to find a flight deal from Port of Spain to Seattle?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Seattle from Port of Spain.

Can I find flights from Port of Spain to Seattle with flexible booking policies on momondo?

momondo does allow users to show only those flights to Seattle from Port of Spain which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Port of Spain to Seattle?

momondo helps you find the best flight between Port of Spain and Seattle by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Yes. momondo can track prices for Port of Spain to Seattle flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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