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Saint Thomas Island

$190+ 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 2/22. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — STT
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
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 September 11, 2025.

Round-trip from

$315
(American Airlines)

One-way from

$190
(Delta)

Popular in

April

Cheapest in

July

Average price

$677
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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High demand for flights, 0% potential price rise
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Cheapest flight prices on average. 1% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in September 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 September 11, 2025.

This American Airlines deal was found by Cheapflights users on 9/11. 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.
Mon 10/275:59 pmPWM - STT
1 stop18h 01mAmerican Airlines
Wed 11/56:17 pmSTT - PWM
2 stops23h 20mAmerican Airlines
Deal found 9/11$315
This American Airlines deal was found by Cheapflights users on 9/10. 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.
Mon 11/105:21 pmPWM - STT
2 stops22h 36mAmerican Airlines
Sat 11/156:17 pmSTT - PWM
2 stops18h 29mAmerican Airlines
Deal found 9/10$383
This American Airlines deal was found by Cheapflights users on 9/10. 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.
Mon 12/155:46 amPWM - STT
2 stops10h 12mAmerican Airlines
Mon 12/222:31 pmSTT - PWM
2 stops10h 14mAmerican Airlines
Deal found 9/10$422
This Delta deal was found by Cheapflights users on 9/10. 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.
Wed 9/176:00 amPWM - STT
1 stop7h 33mDelta
Tue 9/232:43 pmSTT - PWM
1 stop9h 28mDelta
Deal found 9/10$503
This American Airlines deal was found by Cheapflights users on 9/11. 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 10/155:21 pmPWM - STT
2 stops22h 44mAmerican Airlines
Wed 10/221:39 pmSTT - PWM
2 stops10h 12mAmerican Airlines
Deal found 9/11$507
This American Airlines deal was found by Cheapflights users on 9/9. 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 11/127:02 amPWM - STT
1 stop7h 47mAmerican Airlines
Sun 11/166:17 pmSTT - PWM
2 stops18h 51mAmerican Airlines
Deal found 9/9$549
This American Airlines deal was found by Cheapflights users on 9/11. 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.
Sat 11/86:37 pmPWM - STT
2 stops21h 20mAmerican Airlines
Sun 11/166:17 pmSTT - PWM
2 stops18h 51mAmerican Airlines
Deal found 9/11$574
This United Airlines deal was found by Cheapflights users on 9/9. 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 11/95:30 amPWM - STT
1 stop7h 26mUnited Airlines
Sat 11/155:25 pmSTT - PWM
1 stop6h 52mUnited Airlines
Deal found 9/9$599
This Delta deal was found by Cheapflights users on 9/9. 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.
Mon 11/106:00 amPWM - STT
1 stop7h 40mDelta
Sat 11/154:50 pmSTT - PWM
1 stop8h 04mDelta
Deal found 9/9$602

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 September 11, 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

Mon 11/10

5:21 pm-4:57 pm

2 stops22h 36m

Saint Thomas Island Cyril E King

Sat 11/15

6:17 pm-11:46 am

2 stops18h 29m

$315

PortlandSaint Thomas Island

PWM - STT

PWMSTT

Portland

Sat 1/24

2:24 pm-12:10 pm

2 stops20h 46m

Saint Thomas Island Cyril E King

Sat 2/7

4:35 pm-12:09 pm

2 stops20h 34m

$315

PortlandSaint Thomas Island

PWM - STT

PWMSTT

Portland

Sun 1/18

2:24 pm-12:10 pm

2 stops20h 46m

Saint Thomas Island Cyril E King

Tue 3/17

3:30 pm-12:00 pm

2 stops20h 30m

$340

PortlandSaint Thomas Island

PWM - STT

PWMSTT

Portland

Sun 1/18

5:30 am-3:54 pm

1 stop9h 24m

Saint Thomas Island Cyril E King

Tue 3/17

3:56 pm-11:49 pm

1 stop7h 53m

$378

PortlandSaint Thomas Island

PWM - STT

PWMSTT

Portland

Mon 12/15

5:46 am-4:58 pm

2 stops10h 12m

Saint Thomas Island Cyril E King

Mon 12/22

2:31 pm-11:45 pm

2 stops10h 14m

$422

PortlandSaint Thomas Island

PWM - STT

PWMSTT

Portland

Sun 11/9

5:21 pm-4:57 pm

2 stops22h 36m

Saint Thomas Island Cyril E King

Sat 11/15

6:17 pm-11:46 am

2 stops18h 29m

$432

PortlandSaint Thomas Island

PWM - STT

PWMSTT

Portland

Mon 10/27

6:00 am-4:05 pm

2 stops10h 05m

Saint Thomas Island Cyril E King

Wed 11/5

6:17 pm-11:46 am

2 stops18h 29m

$432

PortlandSaint Thomas Island

PWM - STT

PWMSTT

Portland

Sun 2/22

5:30 am-3:54 pm

1 stop9h 24m

$190

PortlandSaint Thomas Island

PWM - STT

PWMSTT

Portland

Sun 11/2

3:15 pm-10:51 am

2 stops42h 36m

$210

PortlandSaint Thomas Island

PWM - STT

PWMSTT

Portland

Wed 10/15

7:37 pm-9:56 am

2 stops38h 19m

$239

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

Showing 1-10 of 15 results
1
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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 August 29, 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 $645). 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 September 11, 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.

How much does it cost to fly round-trip from Portland, Maine to Saint Thomas Island?

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 September 11, 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
7,960 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

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
7,960 reviews
Delta
8.0
Very good
7,960 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

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
8,937 reviews
Delta
8.0
Very good
7,960 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

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
7,960 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

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.

  • How long is the flight from Portland, Maine to Saint Thomas Island?

    A quick flight from Portland, Maine to Saint Thomas Island can take about 22h 36m. American Airlines provides one of the quickest options available for as low as $315. The distance from Portland, Maine to Saint Thomas Island is about 1775 mi.

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

    According to our current data, Delta ($427), American Airlines ($439), and United Airlines ($459) 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 36% 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 $645). 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.
Boston to Saint Thomas Island flights
Boston to Christiansted flights
Rockland to Saint Thomas Island flights

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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$427Average$627FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$439Average$747FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$459Average$720FlexibilityNo cancel feeOn-time69%

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