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Saint Thomas Island

$217+ Cheap flights from Portland, ME (PWM) to Saint Thomas Island (STT)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/9. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — STT
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
1 adult, Economy
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Cheap flight deals from Portland to Saint Thomas Island

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PWM) to Saint Thomas Island (STT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 29, 2025.

Round-trip from

$459
(American Airlines)

One-way from

$217
(Trip.com)

Popular in

August

Cheapest in

September

Average price

$563
From Portland to Saint Thomas Island Cyril E King
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One-way flight from Portland to Saint Thomas Island Cyril E King
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Highest demand for flights based on searches. 1% potential increase in price ($6 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($32 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Portland to Saint Thomas Island

Cheapest flights from Portland to Saint Thomas Island
Explore the most affordable flight options available from Portland to Saint Thomas Island. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

This American Airlines deal was found by Cheapflights users on 7/29. 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.
Wed 10/154:14 pmPWM - STT
2 stops18h 36mAmerican Airlines
Wed 10/225:20 pmSTT - PWM
2 stops18h 34mAmerican Airlines
Deal found 7/29$459
This United Airlines deal was found by Cheapflights users on 7/27. 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.
Sun 10/196:00 amPWM - STT
1 stop7h 08mUnited Airlines
Sat 10/252:10 pmSTT - PWM
1 stop9h 10mUnited Airlines
Deal found 7/27$499
This Delta deal was found by Cheapflights users on 7/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/96:00 amPWM - STT
1 stop8h 10mDelta
Tue 9/162:43 pmSTT - PWM
1 stop9h 28mDelta
Deal found 7/27$567
This Mytrip deal was found by Cheapflights users on 7/27. 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.
Fri 8/2912:29 pmPWM - STT
3 stops25h 19mMultiple Airlines
Sun 9/710:49 amSTT - PWM
2 stops22h 17mMultiple Airlines
Deal found 7/27$592

Cheapflights Fare Finder

 
Customize your flight search to find flights from Portland to Saint Thomas Island 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 29, 2025.
Use the filters below to find and compare flights from Portland to Saint Thomas Island that are best for you.

Fly from

Portland

Fly to

Saint Thomas Island

Route

Depart

Return

Price

PortlandSaint Thomas Island

PWM - STT

PWMSTT

Portland

Wed 10/15

4:14 pm-10:50 am

2 stops18h 36m

Saint Thomas Island Cyril E King

Wed 10/22

5:20 pm-11:54 am

2 stops18h 34m

$459

PortlandSaint Thomas Island

PWM - STT

PWMSTT

Portland

Sun 10/19

6:00 am-1:08 pm

1 stop7h 08m

Saint Thomas Island Cyril E King

Sat 10/25

2:10 pm-11:20 pm

1 stop9h 10m

$499

PortlandSaint Thomas Island

PWM - STT

PWMSTT

Portland

Tue 9/9

6:00 am-2:10 pm

1 stop8h 10m

Saint Thomas Island Cyril E King

Tue 9/16

2:43 pm-12:11 am

1 stop9h 28m

$567

PortlandSaint Thomas Island

PWM - STT

PWMSTT

Portland

Fri 8/29

12:29 pm-1:48 pm

3 stops25h 19m

Saint Thomas Island Cyril E King

Sun 9/7

10:49 am-9:06 am

2 stops22h 17m

$592

PortlandSaint Thomas Island

PWM - STT

PWMSTT

Portland

Sat 8/9

6:58 pm-3:10 pm

1 stop20h 12m

$217

PortlandSaint Thomas Island

PWM - STT

PWMSTT

Portland

Wed 10/15

1:05 pm-10:50 am

2 stops21h 45m

$267

PortlandSaint Thomas Island

PWM - STT

PWMSTT

Portland

Fri 8/29

6:00 am-2:10 pm

1 stop8h 10m

$428

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

Best time to book a flight from Portland to Saint Thomas Island

Have a flexible travel schedule? Discover the best time to fly to Saint Thomas Island from Portland 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 Portland to Saint Thomas Island

How far ahead should I book a flight from Portland, Maine to Saint Thomas Island?

Use this chart to determine the optimal time to book a round-trip flight from Portland to Saint Thomas Island. Price data was last updated on July 25, 2025.

To ensure you get the cheapest price possible for a flight from Portland, Maine to Saint Thomas Island, you should look to book at least 61 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Portland, Maine to Saint Thomas Island?

Currently, September is the cheapest month in which you can book a flight from Portland, Maine to Saint Thomas Island (average of $433). Flying from Portland, Maine to Saint Thomas Island in June is currently the most expensive (average of $649). 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.

What is the cheapest time of day to fly from PWM to STT?

Find hourly flight availability from Portland to Saint Thomas Island. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 29, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 16% on flights from Portland, Maine to Saint Thomas Island by exploring options for tickets at noon.

Reviews of airlines servicing Saint Thomas Island

Get insights into the airlines that provide service to Saint Thomas Island. 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 Saint Thomas Island. Reviews last updated July 29, 2025.
Read reviews from past customers who have flown Delta, United Airlines, and American Airlines from Portland to Saint Thomas Island. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,979 reviews

Food

7.3

Comfort

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,979 reviews
Delta
8.0
Very good
7,979 reviews

Food

7.3

Comfort

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,896 reviews
Delta
8.0
Very good
7,979 reviews

Food

7.3

Comfort

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,979 reviews

Food

7.3

Comfort

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Portland to Saint Thomas Island. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Portland, Maine to Saint Thomas Island round-trip?

    According to our current data, American Airlines ($459), United Airlines ($499), and Delta ($567) offers the cheapest pricing from Portland, Maine to Saint Thomas Island. You may be able to fly from Portland, Maine to Saint Thomas Island for 32% less than the average price by searching for these airlines.

  • Can I find deals for flights from Portland to Saint Thomas Island that include hotel bookings?

    Yes. In addition to deals on Portland to Saint Thomas Island flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Portland to Saint Thomas Island?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to Saint Thomas Island.

  • Can I find deals for business class flights from Portland to Saint Thomas Island?

    Yes. Cheapflights offers flight deals from Portland to Saint Thomas Island 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 Portland, Maine to Saint Thomas Island?

    Currently, September is the cheapest month in which you can book a flight from Portland, Maine to Saint Thomas Island (average of $433). Flying from Portland, Maine to Saint Thomas Island in June is currently the most expensive (average of $649). 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.

See more FAQs

Traveling to a place near Saint Thomas Island?

Book flights to Saint Thomas Island if you plan to visit one of these locations
St. John

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Alternative routes for Portland to Saint Thomas Island

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Portland to Saint Thomas Island

Discover the top 3 airlines that operate flights from Portland to Saint Thomas Island. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$418Average$619FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$439Average$725FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$459Average$722FlexibilityNo cancel feeOn-time69%

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