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Cheap flights from Seattle to Port of Spain from $275

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Port of Spain departing on 3/6. 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 Seattle to Port of Spain

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
11:52 pm - 11:23 pm
SEA
-
POS
20h 31m
1 stop
United Airlines Logo
12:30 am - 10:32 am
POS
-
SEA
13h 02m
1 stop
$604United Airlines
Tue, Jun 9 - Mon, Jun 15
United Airlines Logo
5:00 am - 11:23 pm
SEA
-
POS
15h 23m
2 stops
United Airlines Logo
12:30 am - 3:55 pm
POS
-
SEA
18h 25m
2 stops
$608United Airlines
Tue, Jun 9 - Mon, Jun 15
Air Canada Logo
8:00 am - 1:20 am
SEA
-
POS
13h 20m
1 stop
Air Canada Logo
1:20 am - 9:53 pm
POS
-
SEA
23h 33m
1 stop
$638Air Canada
Fri, Feb 20 - Thu, Apr 2
Air Canada Logo
8:00 pm - 12:20 am
SEA
-
POS
24h 20m
2 stops
Air Canada Logo
1:20 am - 10:16 pm
POS
-
SEA
23h 56m
1 stop
$648Air Canada
Sat, Mar 7 - Tue, Mar 10
Air Canada Logo
8:00 pm - 12:20 am
SEA
-
POS
24h 20m
2 stops
Air Canada Logo
1:20 am - 3:01 pm
POS
-
SEA
16h 41m
2 stops
$690Air Canada
Sat, Mar 7 - Tue, Mar 10
Air Canada Logo
10:05 am - 12:20 am
SEA
-
POS
34h 15m
2 stops
Air Canada Logo
1:20 am - 3:01 pm
POS
-
SEA
16h 41m
2 stops
$692Air Canada
Sat, Mar 7 - Tue, Mar 10
Air Canada Logo
8:00 pm - 12:20 am
SEA
-
POS
24h 20m
2 stops
Air Canada Logo
1:20 am - 3:01 pm
POS
-
SEA
16h 41m
2 stops
$698Air Canada
Sat, Mar 7 - Tue, Mar 10
United Airlines Logo
6:45 am - 12:23 am
SEA
-
POS
13h 38m
1 stop
United Airlines Logo
12:30 am - 7:25 pm
POS
-
SEA
21h 55m
1 stop
$714United Airlines
Sat, Mar 7 - Tue, Mar 10
United Airlines Logo
6:45 am - 11:23 pm
SEA
-
POS
13h 38m
1 stop
United Airlines Logo
12:30 am - 11:28 pm
POS
-
SEA
25h 58m
2 stops
$718United Airlines
Wed, Mar 18 - Tue, Mar 24
United Airlines Logo
5:00 am - 11:23 pm
SEA
-
POS
39h 23m
2 stops
United Airlines Logo
12:30 am - 10:59 pm
POS
-
SEA
25h 29m
2 stops
$793United Airlines
Fri, Mar 20 - Thu, Mar 26

Air Canada flights from Seattle to Port of Spain

Our best Air Canada deals on Seattle to Port of Spain flight tickets
Air Canada
Feb 20
SEA8:00 amSeattle/Tacoma Intl
13h 20m
1 stop
POS1:20 amPort of Spain Piarco Intl
Apr 2
POS1:20 amPort of Spain Piarco Intl
23h 33m
1 stop
SEA9:53 pmSeattle/Tacoma Intl
$638
Air Canada
Mar 7
SEA8:00 pmSeattle/Tacoma Intl
24h 20m
2 stops
POS12:20 amPort of Spain Piarco Intl
Mar 10
POS1:20 amPort of Spain Piarco Intl
23h 56m
1 stop
SEA10:16 pmSeattle/Tacoma Intl
$648
Air Canada
Mar 7
SEA8:00 pmSeattle/Tacoma Intl
24h 20m
2 stops
POS12:20 amPort of Spain Piarco Intl
Mar 10
POS1:20 amPort of Spain Piarco Intl
16h 41m
2 stops
SEA3:01 pmSeattle/Tacoma Intl
$690

United Airlines flights from Seattle to Port of Spain

Our best United Airlines deals on Seattle to Port of Spain flight tickets
United Airlines
Mar 7
SEA6:45 amSeattle/Tacoma Intl
13h 38m
1 stop
POS12:23 amPort of Spain Piarco Intl
Mar 10
POS12:30 amPort of Spain Piarco Intl
21h 55m
1 stop
SEA7:25 pmSeattle/Tacoma Intl
$714
United Airlines
Mar 18
SEA6:45 amSeattle/Tacoma Intl
13h 38m
1 stop
POS11:23 pmPort of Spain Piarco Intl
Mar 24
POS12:30 amPort of Spain Piarco Intl
25h 58m
2 stops
SEA11:28 pmSeattle/Tacoma Intl
$718
United Airlines
Mar 20
SEA5:00 amSeattle/Tacoma Intl
39h 23m
2 stops
POS11:23 pmPort of Spain Piarco Intl
Mar 26
POS12:30 amPort of Spain Piarco Intl
25h 29m
2 stops
SEA10:59 pmSeattle/Tacoma Intl
$793

momondo Fare Finder

 
Customize your flight search to find flights from Seattle to Port of Spain 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 February 4, 2026.
Use the filters below to find and compare flights from Seattle to Port of Spain that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattlePort of Spain

SEA - POS

SEAPOS

Seattle/Tacoma Intl

Tue 6/9

11:52 pm-11:23 pm

1 stop20h 31m

Port of Spain Piarco Intl

Mon 6/15

12:30 am-10:32 am

1 stop13h 02m

$604

SeattlePort of Spain

SEA - POS

SEAPOS

Seattle/Tacoma Intl

Tue 6/9

5:00 am-11:23 pm

2 stops15h 23m

Port of Spain Piarco Intl

Mon 6/15

12:30 am-3:55 pm

2 stops18h 25m

$608

SeattlePort of Spain

SEA - POS

SEAPOS

Seattle/Tacoma Intl

Fri 2/20

8:00 am-1:20 am

1 stop13h 20m

Port of Spain Piarco Intl

Thu 4/2

1:20 am-9:53 pm

1 stop23h 33m

$638

SeattlePort of Spain

SEA - POS

SEAPOS

Seattle/Tacoma Intl

Sat 3/7

8:00 pm-12:20 am

2 stops24h 20m

Port of Spain Piarco Intl

Tue 3/10

1:20 am-10:16 pm

1 stop23h 56m

$648

SeattlePort of Spain

SEA - POS

SEAPOS

Seattle/Tacoma Intl

Sat 3/7

8:00 pm-12:20 am

2 stops24h 20m

Port of Spain Piarco Intl

Tue 3/10

1:20 am-3:01 pm

2 stops16h 41m

$690

SeattlePort of Spain

SEA - POS

SEAPOS

Seattle/Tacoma Intl

Sat 3/7

10:05 am-12:20 am

2 stops34h 15m

Port of Spain Piarco Intl

Tue 3/10

1:20 am-3:01 pm

2 stops16h 41m

$692

SeattlePort of Spain

SEA - POS

SEAPOS

Seattle/Tacoma Intl

Sat 3/7

8:00 pm-12:20 am

2 stops24h 20m

Port of Spain Piarco Intl

Tue 3/10

1:20 am-3:01 pm

2 stops16h 41m

$698

SeattlePort of Spain

SEA - POS

SEAPOS

Seattle/Tacoma Intl

Sat 3/7

6:45 am-12:23 am

1 stop13h 38m

Port of Spain Piarco Intl

Tue 3/10

12:30 am-7:25 pm

1 stop21h 55m

$714

SeattlePort of Spain

SEA - POS

SEAPOS

Seattle/Tacoma Intl

Wed 3/18

6:45 am-11:23 pm

1 stop13h 38m

Port of Spain Piarco Intl

Tue 3/24

12:30 am-11:28 pm

2 stops25h 58m

$718

SeattlePort of Spain

SEA - POS

SEAPOS

Seattle/Tacoma Intl

Fri 3/20

5:00 am-11:23 pm

2 stops39h 23m

Port of Spain Piarco Intl

Thu 3/26

12:30 am-10:59 pm

2 stops25h 29m

$793

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 resultsSorted by cheapest first
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See travel insights to Port of Spain from

How to get the cheapest flight ticket from Seattle to Port of Spain

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 Port of Spain?

The month of September is, on average, the cheapest month to fly to Port of Spain from Seattle, with most prices found around $541. If you’re not able to fly to Port of Spain in September, then October is your next best option. Flight prices from Seattle to Port of Spain during October average around $608.

Can stopping save me money on Seattle to Port of Spain flights?

You could potentially save up to 72% on your flight if you consider stops on a Seattle to Port of Spain flight.

When to book flights from Seattle to Port of Spain

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

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

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

Fastest flight time

29h 40m

Direct flights

None
The fastest flight from Seattle to Port of Spain takes 29h 40m
There are no direct flights from Seattle to Port of Spain. There are no popular flight routes from Seattle to Port of Spain.
Search flight deals

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

    A flight from Seattle/Tacoma Intl to Port of Spain Piarco Intl will travel around 4325.1 mi. Typically, this will take 29h 40m by plane in normal conditions.

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

    Prices for flights from Seattle/Tacoma Intl Airport to Port of Spain Piarco Intl Airport were last updated today.

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Port of Spain Piarco Intl Airport.

  • What documentation or ID do you need to fly to Port of Spain Piarco Intl Airport?

    The travel and health documents you'll need for your trip to Port of Spain Piarco 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 Port of Spain Piarco 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 airline from Seattle to Port of Spain?

Best airlines flying from Seattle to Port of Spain

Compare and see reviews for airlines that fly from Seattle to Port of Spain with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $524Free CancellationRating
7.4
9,236 reviews
Search United Airlines flights

Traveling to a place near Port of Spain?

Book flights to Port of Spain if you plan to visit one of these locations
Piarco

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Seattle to Port of Spain for you.

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

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

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

momondo provides multiple filters to help you find the best flight to Port of Spain from Seattle. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes momondo offers price alerts on flights to Port of Spain from Seattle. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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