SEA - POS

$245 Find Cheap Flights from Seattle to Port of Spain

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 10/28. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Port of Spain

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Port of Spain, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Port of Spain, as well as popular online travel agencies
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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

Thu, Nov 20 - Mon, Nov 24
United Airlines Logo
7:10 am - 12:23 amSEA-POS
13h 13m1 stop
United Airlines Logo
1:30 am - 6:10 pmPOS-SEA
20h 40m2 stops
$473United Airlines
Find Deal
Thu, Nov 20 - Tue, Nov 25
American Airlines Logo
5:48 am - 11:38 pmSEA-POS
13h 50m2 stops
American Airlines Logo
7:19 am - 11:05 pmPOS-SEA
19h 46m2 stops
$477American Airlines
Find Deal
Thu, Nov 20 - Mon, Nov 24
United Airlines Logo
7:10 am - 12:23 amSEA-POS
13h 13m1 stop
United Airlines Logo
1:30 am - 7:25 pmPOS-SEA
21h 55m1 stop
$494United Airlines
Find Deal
Mon, Nov 10 - Sun, Nov 16
United Airlines Logo
7:10 am - 12:23 amSEA-POS
13h 13m1 stop
United Airlines Logo
1:30 am - 7:25 pmPOS-SEA
21h 55m1 stop
$499United Airlines
Find Deal
Thu, Nov 20 - Mon, Nov 24
United Airlines Logo
5:30 am - 12:23 amSEA-POS
14h 53m2 stops
United Airlines Logo
1:30 am - 6:10 pmPOS-SEA
20h 40m2 stops
$558United Airlines
Find Deal
Mon, Nov 10 - Sun, Nov 16
United Airlines Logo
7:10 am - 12:23 amSEA-POS
13h 13m1 stop
United Airlines Logo
1:30 am - 4:15 pmPOS-SEA
18h 45m2 stops
$562United Airlines
Find Deal
Mon, Nov 3 - Thu, Nov 6
United Airlines Logo
11:59 pm - 12:23 amSEA-POS
20h 24m1 stop
United Airlines Logo
1:30 am - 6:10 pmPOS-SEA
20h 40m2 stops
$583United Airlines
Find Deal
Mon, Nov 3 - Fri, Nov 7
American Airlines Logo
10:07 pm - 3:30 pmSEA-POS
13h 23m2 stops
American Airlines Logo
7:19 am - 11:26 pmPOS-SEA
20h 07m1 stop
$587American Airlines
Find Deal
Sun, Jan 11 - Sun, Jan 18
Air Canada Logo
8:10 am - 1:10 amSEA-POS
13h 00m1 stop
Air Canada Logo
2:15 am - 10:16 pmPOS-SEA
24h 01m1 stop
$700Air Canada
Find Deal
Sun, Feb 15 - Thu, Feb 19
Air Canada Logo
8:00 pm - 1:10 amSEA-POS
49h 10m2 stops
Air Canada Logo
2:15 am - 10:06 pmPOS-SEA
47h 51m2 stops
$1,301Air Canada
Find Deal

Everything you should know

Top airlines
United Airlines
Cheapest • from $473 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
October
Cheapest • 29% price drop
February
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$473
Overall average: $746
United Airlines
Thu 11/20Mon 11/24
SEA - POS • 1 stop
Cheapest one-way
$245
Typical prices: $281-$332
Multiple Airlines
Tue 10/28
SEA - POS • 3 stops
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Port of Spain!
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.

What’s the cheapest day of the week to fly from Seattle to Port of Spain?

The average price of all round-trip flights from Seattle to Port of Spain clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Port of Spain on a Sunday, as we generally find the cheapest rates on that day for this route. On the other hand, Thursday is the most expensive day to fly from Seattle to Port of Spain. For your return ticket, we recommend flying on a Tuesday and avoiding Mondays for the best deals.

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 $523 (return) on average. On the other hand, the most expensive months are December and April, where the average cost of round-trip tickets is $1,462 and $862 respectively.

Good to know

Low seasonMay
Cheapest flight$245
Best time to beat the crowds but there is an average 3% increase in price.
Most popular time to fly and prices are also 13% lower on average.
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 3 days, the lowest price for a flight from Seattle to Port of Spain was $245 for a one-way ticket and $473 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?

    oneworld, and Star Alliance are the airline alliances operating flights between Seattle and Port of Spain, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from Seattle to Port of Spain, United Airlines or American Airlines?

    The two airlines most popular with KAYAK users for flights from Seattle to Port of Spain are United Airlines and American Airlines. With an average price for the route of $646 and an overall rating of 7.4, United Airlines is the most popular choice. American Airlines is also a great choice for the route, with an average price of $659 and an overall rating of 7.2.

  • 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 airlines 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 8970 reviews
8.1Crew
6.6Food
7.1Entertainment
7.3Comfort
7.7Boarding
Airline reviews

Crew seemed a bit cranky. No seatback screens. But boarding was efficient and on time and we arrived early.

8.0 ExcellentJessica, Oct 2025DEN - TUS
Read more United Airlines reviews

Crew seemed a bit cranky. No seatback screens. But boarding was efficient and on time and we arrived early.

The worst landing I have ever had on a domestic flight. Thought we would lose the landing gear on landing in Newark. Then we spent 40 minutes trying to position the plane in the right place to be able to get the jet way to the plane. The plane arrived stopped. The announcer was that we were there. Everybody got up, then we were told to sit back down because they had to have us towed to a different position. We got towed and then everyone stood up and they told us we were in the wrong position to sit back down again, and then we got towed to a different position This did not happen immediately. It was 30 minutes while we wandered around a small section of the tarmac in Newark close to the gate, but apparently not close enough. Horrifying experience The CAB should be investigating that flight

Food was poorly timed and not good.. Hand held snacks, really. I kept asking for water and never got any. Service was rushed for a 7-hour flight.

Boarding was organized. Old plane. Seat fairly comfortable. Business Class much too large so you don’t receive as much attention as you should considering what you pay for the seat.

Boarding was organized. Plane seats comfortable and service was attentive. Food options were good.

This was a very average flight. The seat was out of alignment so more uncomfortable than usual. The cabin felt not well maintained. But I safely got where I needed to go.

Trip was great. A wild landing in Ottawa with the wind and rain, but the pilot did a great job. Always love flying United.👍

I will never book a flight through Cheap fare. They booked me from Portland Main . And would not give me a refund, so I bought 2 tickets one for 299. From Portland Main to ORD. Then I had to buy a ticket from Oregon PDX to ORD that was another 440. So Just so you know they even told me it was there fault but no refund. Bad bussniess. I did inform United but they said they couldn't help me due to the fact I booked through Cheap Tickets. Never again. And I'm spreding the word. I let everyone know at my 50th class reunion

We were in business class. the angled seats in that class do not have a real window view & the placement of the controls are bad. But we knew that. But the food options were mediocre. The taste was fine, but the size was for a child. It’s just really feels like United is skimping on everything. Even when we were in the Polaris lounge they did not have diet sodas. They said they were out no Coke zero no Diet Coke, etc. I do not think the portion of nuts they serve on the plane could get any smaller. Really a minimal service and offer for what you’re paying for in business.

The internet service I paid for didn’t work at all and the flight crew was not very friendly.

Mostly good. Flight was crowded but Airline personnel were very friendly & accommodating. It would be good to have savory snacks rather than just sweet Biscoff cookies.

It was a typical flight. We had a delay which seems to be the normality now. And we had no in flight service due to conditions.

Flight attendants on this flight were very attentive and friendly

After we landed we sat on the tarmac for 1.5 hours waiting to get to our gate. Ridiculous.

Food should be better quality. Video screens have poor resolution and the library of movies is poor. The other airlines are much better.

the trip to madrid was uncomfortable with my legs touching the seat in front of me

The plane was late, when we did board the plane was as cold as a freezer. I was freezing the entire flight, no blankets. Lost miserable flight I’ve ever had.

My flight was delayed for 17hs because the pilot forgot his passport!!! What a joke. AA used to be a great airline, now I have to think twice before flying with them again.

Terrible. Flight delayed for more than 8 hours with only a $12 meal voucher provided for the inconvenience. The airplane did not have breaks on arrival yet they still made us go through the motions and board on time knowing we could not take off then sit for 40+ minutes before having to get of the time. A complete waste of my time. I cannot believe they can stay business with these shenanigans. I’ll avoid this company like the plague moving forward as the lack of accountability is disgraceful.

This was the best 2 flights I have had with American out of SGF. Great crew both flights.

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

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