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$635+ Cheap flights from Port of Spain (POS) to Missouri

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/28. Fares are subject to change and may not be available on all flights or dates of travel.
POS — STL
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
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Cheap flight deals from Port of Spain to Missouri

Keep the following information in mind while searching for Port of Spain to Missouri flight deals. Data was last updated July 31, 2025.

Round-trip from

$635
(American Airlines)
From Port of Spain Piarco Intl to Missouri
Search Deals

Find flight deals from Port of Spain to Missouri

Cheapest flights from Port of Spain to Missouri
Explore the most affordable flight options available from Port of Spain to Missouri. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2025.

This American Airlines deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/287:00 amPOS - STL
1 stop17h 59mAmerican Airlines
Sun 8/315:26 amSTL - POS
1 stop7h 59mAmerican Airlines
Deal found 7/30$635
This United Airlines deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2712:30 amPOS - STL
1 stop22h 38mUnited Airlines
Sun 8/315:30 pmSTL - POS
2 stops52h 53mUnited Airlines
Deal found 7/30$692
This Mytrip deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/286:25 pmPOS - STL
3 stops23h 20mMultiple Airlines
Sun 8/312:30 pmSTL - POS
3 stops33h 50mMultiple Airlines
Deal found 7/30$733

Cheapflights Fare Finder

 
Customize your flight search to find flights from Port of Spain to Missouri 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, Cheapflights users made 2,558,603 searches. Data last updated July 31, 2025.
Use the filters below to find and compare flights from Port of Spain to Missouri that are best for you.

Fly from

Port of Spain

Fly to

Missouri

Route

Depart

Return

Price

Port of SpainSt. Louis

POS - STL

POSSTL

Port of Spain Piarco Intl

Thu 8/28

7:00 am-11:59 pm

1 stop17h 59m

Lambert-St Louis

Sun 8/31

5:26 am-2:25 pm

1 stop7h 59m

$635

Port of SpainSt. Louis

POS - STL

POSSTL

Port of Spain Piarco Intl

Wed 8/27

12:30 am-10:08 pm

1 stop22h 38m

Lambert-St Louis

Sun 8/31

5:30 pm-11:23 pm

2 stops52h 53m

$692

Port of SpainSt. Louis

POS - STL

POSSTL

Port of Spain Piarco Intl

Thu 8/28

6:25 pm-4:45 pm

3 stops23h 20m

Lambert-St Louis

Sun 8/31

2:30 pm-1:20 am

3 stops33h 50m

$733

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Best time to book a flight from Port of Spain to Missouri

Have a flexible travel schedule? Discover the best time to fly to Missouri from Port of Spain with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Port of Spain to Missouri
No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Missouri

Get insights into the airlines that provide service to Missouri. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Missouri. Reviews last updated July 31, 2025.
Read reviews from past customers who have flown United Airlines and American Airlines from Port of Spain to Missouri. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,900 reviews

Comfort

7.3

Overall

7.4

Boarding

7.7

Crew

8.1

Entertainment

7.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.
United Airlines
7.4
Good
8,900 reviews
United Airlines
7.4
Good
8,900 reviews

Comfort

7.3

Overall

7.4

Boarding

7.7

Crew

8.1

Entertainment

7.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,900 reviews

Comfort

7.3

Overall

7.4

Boarding

7.7

Crew

8.1

Entertainment

7.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.

Related info for your journey

Find useful and relevant information for your journey from Port of Spain to Missouri. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Port of Spain to Missouri?

    If you book a flight to Missouri from Port of Spain, you will be flying from Piarco Intl, which is the city’s only airport. Port of Spain Piarco Intl (POS) is located 12.6 mi from the center of Port of Spain.

  • Can I find deals for flights from Port of Spain to Missouri that include hotel bookings?

    Yes. In addition to deals on Port of Spain to Missouri flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Port of Spain to Missouri?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Port of Spain to Missouri.

  • Can I find deals for business class flights from Port of Spain to Missouri?

    Yes. Cheapflights offers flight deals from Port of Spain to Missouri by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Port of Spain to Missouri?

    Currently, August is the cheapest month in which you can book a flight from Port of Spain to Missouri (average of $311). Flying from Port of Spain to Missouri in March is currently the most expensive (average of $356). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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