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Cheap flights from Seattle to Port of Spain from $399

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 2/4. 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 Seattle to Port of Spain

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
5:41 pm - 2:08 pmSEA  Seattle/Tacoma Intl-POS Port of Spain Piarco Intl
17h 27m2 stops Dallas/Fort Worth Miami
American Airlines Logo
4:42 pm - 1:51 pmPOS  Port of Spain Piarco Intl-SEA Seattle/Tacoma Intl
25h 09m2 stops Miami Phoenix Sky Harbor Intl
$510American Airlines
Fri, Oct 30 - Wed, Nov 4
American Airlines Logo
2:12 pm - 2:06 pmSEA  Seattle/Tacoma Intl-POS Port of Spain Piarco Intl
20h 54m2 stops Dallas/Fort Worth Miami
American Airlines Logo
3:06 pm - 12:50 pmPOS  Port of Spain Piarco Intl-SEA Seattle/Tacoma Intl
24h 44m2 stops Miami Chicago O'Hare Intl
$510American Airlines
Tue, Sep 22 - Wed, Sep 30
American Airlines Logo
2:12 pm - 2:06 pmSEA  Seattle/Tacoma Intl-POS Port of Spain Piarco Intl
20h 54m2 stops Dallas/Fort Worth Miami
American Airlines Logo
3:06 pm - 11:11 amPOS  Port of Spain Piarco Intl-SEA Seattle/Tacoma Intl
23h 05m2 stops Miami Dallas/Fort Worth
$515American Airlines
Tue, Sep 22 - Sun, Sep 27
United Airlines Logo
5:00 am - 11:23 pmSEA  Seattle/Tacoma Intl-POS Port of Spain Piarco Intl
15h 23m2 stops Denver Intl Houston George Bush Intcntl
United Airlines Logo
12:30 am - 12:48 pmPOS  Port of Spain Piarco Intl-SEA Seattle/Tacoma Intl
15h 18m1 stop Houston George Bush Intcntl
$526United Airlines
Tue, Sep 22 - Sat, Sep 26
United Airlines Logo
7:00 am - 11:23 pmSEA  Seattle/Tacoma Intl-POS Port of Spain Piarco Intl
13h 23m1 stop Houston George Bush Intcntl
United Airlines Logo
12:30 am - 7:03 pmPOS  Port of Spain Piarco Intl-SEA Seattle/Tacoma Intl
21h 33m1 stop Houston George Bush Intcntl
$526United Airlines
Tue, Sep 22 - Sat, Sep 26
American Airlines Logo
2:12 pm - 2:06 pmSEA  Seattle/Tacoma Intl-POS Port of Spain Piarco Intl
20h 54m2 stops Dallas/Fort Worth Miami
American Airlines Logo
3:06 pm - 12:50 pmPOS  Port of Spain Piarco Intl-SEA Seattle/Tacoma Intl
24h 44m2 stops Miami Chicago O'Hare Intl
$530American Airlines
Tue, Sep 22 - Wed, Sep 30
United Airlines Logo
7:05 am - 11:18 pmSEA  Seattle/Tacoma Intl-POS Port of Spain Piarco Intl
13h 13m1 stop Houston George Bush Intcntl
United Airlines Logo
1:25 am - 1:25 pmPOS  Port of Spain Piarco Intl-SEA Seattle/Tacoma Intl
16h 00m1 stop Houston George Bush Intcntl
$549United Airlines
Fri, Oct 30 - Tue, Nov 3
United Airlines Logo
5:00 am - 11:23 pmSEA  Seattle/Tacoma Intl-POS Port of Spain Piarco Intl
15h 23m2 stops Denver Intl Houston George Bush Intcntl
United Airlines Logo
12:30 am - 12:48 pmPOS  Port of Spain Piarco Intl-SEA Seattle/Tacoma Intl
15h 18m1 stop Houston George Bush Intcntl
$549United Airlines
Thu, Sep 3 - Mon, Sep 7
United Airlines Logo
7:05 am - 11:18 pmSEA  Seattle/Tacoma Intl-POS Port of Spain Piarco Intl
13h 13m1 stop Houston George Bush Intcntl
United Airlines Logo
1:25 am - 2:39 pmPOS  Port of Spain Piarco Intl-SEA Seattle/Tacoma Intl
17h 14m2 stops Houston George Bush Intcntl San Francisco
$549United Airlines
Fri, Oct 30 - Tue, Nov 3
United Airlines Logo
7:00 am - 11:23 pmSEA  Seattle/Tacoma Intl-POS Port of Spain Piarco Intl
13h 23m1 stop Houston George Bush Intcntl
United Airlines Logo
12:30 am - 12:48 pmPOS  Port of Spain Piarco Intl-SEA Seattle/Tacoma Intl
15h 18m1 stop Houston George Bush Intcntl
$549United Airlines
Thu, Sep 3 - Mon, Sep 7

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United Airlines flights from Seattle to Port of Spain

Our best United Airlines deals on Seattle to Port of Spain flight tickets
United Airlines
Sep 22
SEA5:00 amSeattle/Tacoma Intl
15h 23m
2 stops
POS11:23 pmPort of Spain Piarco Intl
Sep 26
POS12:30 amPort of Spain Piarco Intl
15h 18m
1 stop
SEA12:48 pmSeattle/Tacoma Intl
$526
United Airlines
Sep 3
SEA7:00 amSeattle/Tacoma Intl
13h 23m
1 stop
POS11:23 pmPort of Spain Piarco Intl
Sep 7
POS12:30 amPort of Spain Piarco Intl
15h 18m
1 stop
SEA12:48 pmSeattle/Tacoma Intl
$549
United Airlines
Sep 3
SEA6:30 amSeattle/Tacoma Intl
13h 53m
2 stops
POS11:23 pmPort of Spain Piarco Intl
Sep 7
POS12:30 amPort of Spain Piarco Intl
18h 09m
2 stops
SEA3:39 pmSeattle/Tacoma Intl
$596

American Airlines flights from Seattle to Port of Spain

Our best American Airlines deals on Seattle to Port of Spain flight tickets
American Airlines
Oct 30
SEA5:41 pmSeattle/Tacoma Intl
17h 27m
2 stops
POS2:08 pmPort of Spain Piarco Intl
Nov 4
POS4:42 pmPort of Spain Piarco Intl
25h 09m
2 stops
SEA1:51 pmSeattle/Tacoma Intl
$510
American Airlines
Sep 22
SEA2:12 pmSeattle/Tacoma Intl
20h 54m
2 stops
POS2:06 pmPort of Spain Piarco Intl
Sep 27
POS3:06 pmPort of Spain Piarco Intl
23h 05m
2 stops
SEA11:11 amSeattle/Tacoma Intl
$515
American Airlines
Sep 22
SEA2:12 pmSeattle/Tacoma Intl
20h 54m
2 stops
POS2:06 pmPort of Spain Piarco Intl
Sep 30
POS3:06 pmPort of Spain Piarco Intl
24h 44m
2 stops
SEA12:50 pmSeattle/Tacoma Intl
$530

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 August 13, 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

Cheapest round-trip

SeattlePort of Spain

SEA Seattle/Tacoma Intl - POS Port of Spain Piarco Intl

SEAPOS

Seattle/Tacoma Intl

Fri 10/30

5:41 pm-2:08 pm

2 stops17h 27m

Port of Spain Piarco Intl

Wed 11/4

4:42 pm-1:51 pm

2 stops25h 09m

$510

SeattlePort of Spain

SEA Seattle/Tacoma Intl - POS Port of Spain Piarco Intl

SEAPOS

Seattle/Tacoma Intl

Tue 9/22

2:12 pm-2:06 pm

2 stops20h 54m

Port of Spain Piarco Intl

Wed 9/30

3:06 pm-12:50 pm

2 stops24h 44m

$510

SeattlePort of Spain

SEA Seattle/Tacoma Intl - POS Port of Spain Piarco Intl

SEAPOS

Seattle/Tacoma Intl

Tue 9/22

2:12 pm-2:06 pm

2 stops20h 54m

Port of Spain Piarco Intl

Sun 9/27

3:06 pm-11:11 am

2 stops23h 05m

$515

SeattlePort of Spain

SEA Seattle/Tacoma Intl - POS Port of Spain Piarco Intl

SEAPOS

Seattle/Tacoma Intl

Tue 9/22

5:00 am-11:23 pm

2 stops15h 23m

Port of Spain Piarco Intl

Sat 9/26

12:30 am-12:48 pm

1 stop15h 18m

$526

SeattlePort of Spain

SEA Seattle/Tacoma Intl - POS Port of Spain Piarco Intl

SEAPOS

Seattle/Tacoma Intl

Tue 9/22

7:00 am-11:23 pm

1 stop13h 23m

Port of Spain Piarco Intl

Sat 9/26

12:30 am-7:03 pm

1 stop21h 33m

$526

SeattlePort of Spain

SEA Seattle/Tacoma Intl - POS Port of Spain Piarco Intl

SEAPOS

Seattle/Tacoma Intl

Tue 9/22

2:12 pm-2:06 pm

2 stops20h 54m

Port of Spain Piarco Intl

Wed 9/30

3:06 pm-12:50 pm

2 stops24h 44m

$530

SeattlePort of Spain

SEA Seattle/Tacoma Intl - POS Port of Spain Piarco Intl

SEAPOS

Seattle/Tacoma Intl

Fri 10/30

7:05 am-11:18 pm

1 stop13h 13m

Port of Spain Piarco Intl

Tue 11/3

1:25 am-1:25 pm

1 stop16h 00m

$549

SeattlePort of Spain

SEA Seattle/Tacoma Intl - POS Port of Spain Piarco Intl

SEAPOS

Seattle/Tacoma Intl

Thu 9/3

5:00 am-11:23 pm

2 stops15h 23m

Port of Spain Piarco Intl

Mon 9/7

12:30 am-12:48 pm

1 stop15h 18m

$549

SeattlePort of Spain

SEA Seattle/Tacoma Intl - POS Port of Spain Piarco Intl

SEAPOS

Seattle/Tacoma Intl

Fri 10/30

7:05 am-11:18 pm

1 stop13h 13m

Port of Spain Piarco Intl

Tue 11/3

1:25 am-2:39 pm

2 stops17h 14m

$549
Quickest round-trip

SeattlePort of Spain

SEA Seattle/Tacoma Intl - POS Port of Spain Piarco Intl

SEAPOS

Seattle/Tacoma Intl

Thu 9/3

7:00 am-11:23 pm

1 stop13h 23m

Port of Spain Piarco Intl

Mon 9/7

12:30 am-12:48 pm

1 stop15h 18m

$549

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 resultsSorted by cheapest first
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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 October is, on average, the cheapest month to fly to Port of Spain from Seattle, with most prices found around $520. If you’re not able to fly to Port of Spain in October, then September is your next best option. Flight prices from Seattle to Port of Spain during September average around $559.

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

You could potentially save up to 2% 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

13h 15m

Direct flights

None
The fastest flight from Seattle to Port of Spain takes 13h 15m
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

Frequently asked questions about flying from Seattle to Port of Spain

  • 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 13h 15m 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 $413Free CancellationRating
7.4
10,114 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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