SEA - POS

$361 Find Cheap Flights from Seattle to Port of Spain - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Port of Spain departing on 8/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$688
Typical prices: $524-$559
United Airlines
Wed 9/9Tue 9/15
SEA - POS • 2 stops
Cheapest one-way
$361
Air Canada
Wed 8/5
SEA - POS • 2 stops
Top airlines
Cheapest • from $665 (round-trip)
Best reviews • 7.4 score
Airline reviews
Airline reviews
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Airline reviews
Airline reviews
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Nonstop flights
Not available
There are currently no direct flights between Seattle and Port of Spain. You'll need at least 1 connection.
Insights
Insights
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Insights
Top layover airports
Cheapest • Avg $717 (round-trip)
Shortest trip • 11h 22m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 28% price drop
Most popular
Good to know
Good to know
+1
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Good to know
Good to know
+1
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We hope you love your trip to Port of Spain!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Seattle to Port of Spain (SEA-POS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to Port of Spain that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Seattle to Port of Spain

Wed, Sep 9 - Tue, Sep 15
United Airlines Logo
5:00 am - 11:23 pm
SEA
-
POS
15h 23m
2 stops
United Airlines Logo
12:30 am - 2:24 pm
POS
-
SEA
16h 54m
2 stops
$688United Airlines
Thu, Aug 27 - Sun, Aug 30
Air Canada Logo
7:20 pm - 12:15 am
SEA
-
POS
25h 55m
2 stops
Air Canada Logo
1:25 am - 9:07 pm
POS
-
SEA
22h 42m
1 stop
$727Air Canada
Mon, Aug 10 - Sun, Aug 16
United Airlines Logo
6:00 am - 11:23 pm
SEA
-
POS
14h 23m
2 stops
United Airlines Logo
12:30 am - 2:24 pm
POS
-
SEA
16h 54m
2 stops
$730United Airlines
Sun, Aug 2 - Sun, Aug 9
Air Canada Logo
5:50 am - 12:15 am
SEA
-
POS
15h 25m
2 stops
Air Canada Logo
1:25 am - 6:32 pm
POS
-
SEA
44h 07m
2 stops
$744Air Canada
Fri, Aug 21 - Thu, Aug 27
United Airlines Logo
6:30 am - 11:23 pm
SEA
-
POS
13h 53m
2 stops
United Airlines Logo
12:30 am - 2:52 pm
POS
-
SEA
17h 22m
1 stop
$750United Airlines
Sun, Aug 2 - Sun, Aug 9
United Airlines Logo
5:00 am - 11:23 pm
SEA
-
POS
15h 23m
1 stop
United Airlines Logo
12:30 am - 12:47 pm
POS
-
SEA
15h 17m
1 stop
$754United Airlines
Mon, Aug 10 - Sun, Aug 16
United Airlines Logo
7:00 am - 11:23 pm
SEA
-
POS
13h 23m
1 stop
United Airlines Logo
12:30 am - 12:48 pm
POS
-
SEA
15h 18m
1 stop
$767United Airlines
Fri, Aug 21 - Fri, Aug 28
American Airlines Logo
8:21 pm - 11:18 pm
SEA
-
POS
23h 57m
1 stop
American Airlines Logo
7:00 am - 12:20 am
POS
-
SEA
20h 20m
1 stop
$770American Airlines
Wed, Sep 9 - Wed, Sep 16
JetBlue Logo
9:40 pm - 2:00 pm
SEA
-
POS
13h 20m
1 stop
JetBlue Logo
3:50 pm - 8:42 pm
POS
-
SEA
31h 52m
1 stop
$777JetBlue
Tue, Jul 28 - Tue, Aug 4
United Airlines Logo
5:00 am - 11:23 pm
SEA
-
POS
15h 23m
2 stops
United Airlines Logo
12:30 am - 10:47 am
POS
-
SEA
13h 17m
1 stop
$778United Airlines
Booking Insights

KAYAK's insights & trends for Seattle to Port of Spain flights

Get data-powered insights and trends into flights from Seattle to Port of Spain to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Seattle to Port of Spain?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Seattle to Port of Spain departing in September.

What is the cheapest month to fly from Seattle to Port of Spain?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seattle to Port of Spain, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Seattle to Port of Spain is October, where tickets cost $520 (return) on average. On the other hand, the most expensive months are May and December, where the average cost of round-trip tickets is $967 and $911 respectively.

Good to know

Low seasonJanuary
Cheapest flight$361
Most popular time to fly with an average 26% increase in price.
Flight from Seattle to Port of Spain

When to book flights from Seattle to Port of Spain

Are your dates flexible? Find out the best times to travel from Seattle to Port of Spain based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Seattle to Port of Spain

  • What is the cheapest flight from Seattle to Port of Spain?

    In the last 5 days, the lowest price for a flight from Seattle to Port of Spain was $361 for a one-way ticket and $665 for a round-trip.

  • Do I need a passport to fly between Seattle and Port of Spain?

    Yes, you’ll need a passport to travel to Port of Spain from Seattle.

  • Which aircraft models fly most regularly from Seattle to Port of Spain?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Seattle to Port of Spain?

    Star Alliance is the only airline alliance operating flights between Seattle and Port of Spain.

  • How does KAYAK find such low prices on flights from Seattle to Port of Spain?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Seattle to Port of Spain.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Seattle to Port of Spain?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Port of Spain from Seattle is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Seattle to Port of Spain?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Port of Spain with an airline and back to Seattle with another airline. Booking your flights between Seattle and POS can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seattle to Port of Spain?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Port of Spain from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Seattle to Port of Spain

 
See real verified KAYAK customer reviews for airlines flying from Seattle to Port of Spain. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Seattle to Port of Spain? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9988 reviews
7.1Entertainment
8.1Crew
6.7Food
7.3Comfort
7.7Boarding
Airline reviews

Our flight was delayed several Times due to mechanical issues. Although I understand this may happen at times, it was very inconvenient and we had to book a hotel for an overnight stay. We were traveling with my 3-yo grandson and waiting at the airport from noon until 6:30pm with no reassurance that our next rescheduled flight would depart, we had to decide what’s best for him. A day later, I found out that I may be able to demand compensation if my flight is delayed more than 4 hours. I will hav to read the fine print next time.

4.0 OkayOlivia, Jun 2026
SEA - SFO
Read more United Airlines reviews

Our flight was delayed several Times due to mechanical issues. Although I understand this may happen at times, it was very inconvenient and we had to book a hotel for an overnight stay. We were traveling with my 3-yo grandson and waiting at the airport from noon until 6:30pm with no reassurance that our next rescheduled flight would depart, we had to decide what’s best for him. A day later, I found out that I may be able to demand compensation if my flight is delayed more than 4 hours. I will hav to read the fine print next time.

Very comfortable seating and the Flight staff were very attentive. The premium economy section that I was seated in was very clean, updated, and well appointed. I would highly recommend flying United Airlines as this experience was better than the Japan Airlines business class that I flew several months ago.

United needs to step up their game. Delayed flight leaving Seattle, San Francisco. Older aircraft, not very comfortable.

Had to cancel first flight because Airporter Bus took over 3 hrs to get to airport which resulted in an extra $378 dollar fare . Is there anyway I can be reimbursed for initial fare since it was not my fault? Sent from my iPhone EJ Ledet

Poor and identical to the first two legs, except for the crew who were patient, professional and of pleasant and jovial disposition!

Delayed by 2.5hrs any longer and they would’ve had to honour their own policy for breaking their own rules and regs. Not cool, especially when I have an infant child that needs to stay on a routine and they get schedules.

They had three choices for snacks - but you could only have one - and they ran out of the dark chocolate before they made it all the way down the aisle... Packed flight - limited service.

They opened my checked bag and even though my lock was tsa approved, they loose my lock and left my bag just like that. Incompetent people, very upset about it. I’ll try to avoid traveling with united

We fly to Ecuador frequently. Checking in is usually a hassle because most United agents take some time before they can verify that my passport doesn't require a visa to Ecuador. This time the process was even longer due to the cyber attack. But she was really nice to us. So glad we brought plenty of snacks to supplement the 3 flights from SEA to GYE.

We had selected seats in the app that were a 2x2 format in the middle of the plane. Our seats when we got on the plane had been moved to the back rows in a 3x1 format. What’s the point of paying up for tickets that allow seat selection if the airline will just change them?

Everything you need to know for your flight from Seattle to Port of Spain

Information on your arrival and departure airports