$390 Cheap United flights Port of Spain (POS) to Houston (IAH)

View $390 flight on Tue, Dec 16, 2025Opens in a new window

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$390 Cheap United flights Port of Spain (POS) to Houston (IAH)

Prices were available within the past 7 days and start at $390 for one-way flights and $598 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Tue, Aug 12 - Tue, Aug 19
POS
Trinidad
IAH
Houston
$598 Roundtrip, found 3 hours ago
$598
Roundtrip
found 3 hours ago
Select United flight, departing Tue, Aug 12 from Trinidad to Houston, returning Tue, Aug 19, priced at $598 found 3 hours ago
United
Tue, Aug 12 - Fri, Aug 22
POS
Trinidad
IAH
Houston
$620 Roundtrip, found 3 hours ago
$620
Roundtrip
found 3 hours ago
Select United flight, departing Tue, Aug 12 from Trinidad to Houston, returning Fri, Aug 22, priced at $620 found 3 hours ago
United
Tue, Jan 27 - Sat, Feb 21
POS
Trinidad
IAH
Houston
$642 Roundtrip, found 19 hours ago
$642
Roundtrip
found 19 hours ago
Select United flight, departing Tue, Jan 27 from Trinidad to Houston, returning Sat, Feb 21, priced at $642 found 19 hours ago
United
Mon, Jul 21 - Tue, Aug 5
POS
Trinidad
IAH
Houston
$648 Roundtrip, found 8 hours ago
$648
Roundtrip
found 8 hours ago
Select United flight, departing Mon, Jul 21 from Trinidad to Houston, returning Tue, Aug 5, priced at $648 found 8 hours ago
United
Mon, Aug 4 - Mon, Aug 11
POS
Trinidad
IAH
Houston
$649 Roundtrip, found 3 hours ago
$649
Roundtrip
found 3 hours ago
Select United flight, departing Mon, Aug 4 from Trinidad to Houston, returning Mon, Aug 11, priced at $649 found 3 hours ago
United
Sun, Jul 20 - Tue, Aug 5
POS
Trinidad
IAH
Houston
$671 Roundtrip, found 8 hours ago
$671
Roundtrip
found 8 hours ago
Select United flight, departing Sun, Jul 20 from Trinidad to Houston, returning Tue, Aug 5, priced at $671 found 8 hours ago
United
Fri, Aug 15 - Fri, Aug 22
POS
Trinidad
IAH
Houston
$672 Roundtrip, found 3 hours ago
$672
Roundtrip
found 3 hours ago
Select United flight, departing Fri, Aug 15 from Trinidad to Houston, returning Fri, Aug 22, priced at $672 found 3 hours ago
Flights from Port of Spain (POS) to Houston (IAH)
Origin airport
Piarco Intl.
Destination airport
George Bush Intercontinental
Airlines serving
Air Canada, American Airlines, Copa, JetBlue Airways, United
Popular airline
United
Distance
2562 mi
Average flight time
6 hours 48 mins

Frequently asked questions

How much is a United Airlines flight from Piarco Intl. Airport (POS) to George Bush Intercontinental Airport (IAH)?
Finding cheap one-way United Airlines flights from POS to IAH from $390 on Expedia couldn't be simpler --- just filter by "Price (lowest to highest)." Alternatively, check out our budget-friendly round-trip fares from $598 for your next exciting adventure.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from POS to IAH with United Airlines?
United Airlines flights to Houston are typically more affordable in the quieter months of November and February. Whether you're searching for a one-way or a return ticket, you could find a better deal then.
What is the cheapest time to book flights from Piarco Intl. Airport (POS) to George Bush Intercontinental Airport (IAH) with United Airlines?
To grab cheap flights from POS to IAH with United Airlines, begin your search about one month before your intended departure. You can save 17% when you lock in your international tickets 18 to 29 days ahead instead of booking four to five months in advance. Another helpful tip? Booking on Sunday offers average savings of 17% compared to Friday (the most expensive day).**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does United Airlines fly nonstop from Piarco Intl. Airport (POS) to George Bush Intercontinental Airport (IAH)?
Hop on one of United Airlines's 7 direct weekly flights from Piarco Intl. Airport (POS) to George Bush Intercontinental Airport (IAH). To view available options, enter your origin, destination and dates and hit search. Then use the "Nonstop" and "Airline" filters.
How long does it take to fly from POS to IAH with United Airlines?
It takes approximately 6h 3m to fly nonstop from Piarco Intl. Airport (POS) to George Bush Intercontinental Airport (IAH) with United Airlines.
What is the earliest United Airlines flight from POS to IAH?
Setting off from POS at 1:30AM UTC-4, the earliest United Airlines flight to IAH lands at 5:33AM UTC-6. Traveling earlier in the day means you'll be less likely to encounter cancellations or delays.* After something later? The last United Airlines flight from POS to IAH departs at 1:30AM UTC-4 and touches down at 5:33AM UTC-6.*Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does United Airlines fly into in Houston?
United Airlines flights from Piarco Intl. Airport (POS) to Houston come in to George Bush Intercontinental Airport (IAH). This is the main entry point to this city.
Why fly with United Airlines from POS to IAH?
Journey from POS to IAH with United Airlines and you'll enjoy a range of perks starting with a rewarding loyalty program. When you book through Expedia as a United Mileage Plus and One Key™ member, you can also earn OneKeyCash™* to redeem on select future travel purchases.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
What type of plane does United Airlines fly from Piarco Intl. Airport (POS) to George Bush Intercontinental Airport (IAH)?
United Airlines generally uses Boeing 737 MAX 8 planes for flights from Piarco Intl. Airport (POS) to George Bush Intercontinental Airport (IAH). Bear in mind that aircraft type can vary depending on operational needs, so the plane you board might be different on your travel date.
Can I change or cancel my United Airlines flight from Piarco Intl. Airport (POS) to George Bush Intercontinental Airport (IAH)?
Depending on your fare type, a fee is typically charged if you change or cancel your flight more than 24 hours after it's confirmed. To secure flexible plane tickets, select our "Changes included" and "No cancel fee" boxes while searching for flights. For more information on canceling or modifying your reservation, visit "Trips," select your flight and tick "Manage Booking."

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*Available to One Key members.