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 6h 19m. 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. This flight may include one or multiple stops.

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

According to our current data, American Airlines ($439), Delta ($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 34% less than the average price by searching for these airlines.

What are the most popular airlines that fly from Portland, Maine to Saint Thomas Island?

Delta, American Airlines and United Airlines are the most popular airlines when flying from Portland, Maine to Saint Thomas Island.

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

When flying from Portland, Maine to Saint Thomas Island, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Most accurate provider : When it comes to deals on Portland, Maine-Saint Thomas Island flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Portland, Maine-Saint Thomas Island flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Portland, Maine-Saint Thomas Island flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Portland, Maine-Saint Thomas Island flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Portland, Maine-Saint Thomas Island flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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.

$234+ Flights from Portland, ME to Saint Thomas Island

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Cheap 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 December 12, 2025.

Tue 12/235:39 amPWM - STT

1 stop7h 13mAmerican Airlines

Thu 1/16:36 pmSTT - PWM

2 stops18h 35mAmerican Airlines

Deal found 12/10

$711

Tue 12/235:45 amPWM - STT

1 stop9h 40mDelta

Thu 1/14:15 pmSTT - PWM

1 stop7h 28mDelta

Deal found 12/10

$918

Best flights from Portland to Saint Thomas Island
Discover carefully curated flight deals from Portland to Saint Thomas Island that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 12, 2025.

Fri 1/307:00 amPWM - STT

1 stop7h 06mAmerican Airlines

Wed 2/46:39 pmSTT - PWM

2 stops18h 26mAmerican Airlines

Deal found 12/11

$315

Tue 2/246:30 amPWM - STT

1 stop6h 19mDelta

Tue 3/35:32 pmSTT - PWM

1 stop7h 46mDelta

Deal found 12/10

$315

Fri 1/235:07 pmPWM - STT

2 stops20h 16mAmerican Airlines

Mon 1/262:26 pmSTT - PWM

1 stop9h 28mAmerican Airlines

Deal found 12/10

$315

Tue 1/275:07 pmPWM - STT

2 stops22h 58mAmerican Airlines

Tue 2/34:47 pmSTT - PWM

2 stops20h 19mAmerican Airlines

Deal found 12/11

$315

Sat 1/243:58 pmPWM - STT

2 stops20h 12mAmerican Airlines

Sat 2/76:39 pmSTT - PWM

2 stops18h 26mAmerican Airlines

Deal found 12/10

$315

Sun 2/13:58 pmPWM - STT

2 stops22h 08mAmerican Airlines

Mon 2/94:47 pmSTT - PWM

2 stops20h 18mAmerican Airlines

Deal found 12/10

$315

Tue 2/247:00 amPWM - STT

1 stop8h 31mAmerican Airlines

Tue 3/32:45 pmSTT - PWM

2 stops10h 06mAmerican Airlines

Deal found 12/11

$315

Sun 2/225:30 amPWM - STT

2 stops11h 01mAmerican Airlines

Thu 2/262:45 pmSTT - PWM

2 stops10h 06mAmerican Airlines

Deal found 12/11

$315

Sun 1/183:58 pmPWM - STT

2 stops21h 04mAmerican Airlines

Tue 3/1712:02 pmSTT - PWM

2 stops11h 48mAmerican Airlines

Deal found 12/11

$340

Last-minute flights from Portland to Saint Thomas Island
Discover last-minute flight deals from Portland to Saint Thomas Island. Data last updated December 12, 2025 and is based on user searches.

Tue 12/235:39 amPWM - STT

1 stop7h 13mAmerican Airlines

Thu 1/16:36 pmSTT - PWM

2 stops18h 35mAmerican Airlines

Deal found 12/10

$711

Sun 1/185:07 pmPWM - STT

2 stops19h 55mAmerican Airlines

Tue 3/172:03 pmSTT - PWM

1 stop8h 56mAmerican Airlines

Deal found 12/11

$340

Sun 1/185:30 amPWM - STT

1 stop9h 40mDelta

Tue 3/173:56 pmSTT - PWM

1 stop8h 14mDelta

Deal found 12/11

$435

Fri 1/235:30 amPWM - STT

1 stop9h 40mDelta

Mon 1/265:30 pmSTT - PWM

1 stop7h 50mDelta

Deal found 12/10

$447

Sat 1/245:30 amPWM - STT

2 stops9h 26mAmerican Airlines

Sat 2/74:12 pmSTT - PWM

1 stop6h 55mAmerican Airlines

Deal found 12/11

$662

Sat 1/242:31 pmPWM - STT

1 stop22h 25mUnited Airlines

Sat 2/75:25 pmSTT - PWM

2 stops22h 06mUnited Airlines

Deal found 12/10

$707

Tue 1/275:30 amPWM - STT

1 stop8h 35mDelta

Tue 2/35:30 pmSTT - PWM

1 stop7h 50mDelta

Deal found 12/11

$315

Fri 1/303:12 pmPWM - STT

3 stops24h 06mUnited Airlines

Wed 2/45:25 pmSTT - PWM

2 stops22h 06mUnited Airlines

Deal found 12/11

$604

One-way flights from Portland to Saint Thomas Island
Search for one-way flight options from Portland to Saint Thomas Island. Find affordable one-way fares based on user searches. Data last updated December 12, 2025.

Fri 1/95:06 pmPWM - STT

2 stops46h 31mMultiple Airlines

Deal found 12/10

$234

Find flight deals from Portland to Saint Thomas Island

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$315 (Delta)
One-way from	$234 (Kiwi.com)
Popular in	February
Cheapest in	July
Average price	$651

Provider with most accurate pricing for Portland-Saint Thomas Island Cyril E King flight deals.

Search Deals

Provider most trusted by Cheapflights users for Portland-Saint Thomas Island Cyril E King flights.

Search Deals

From Portland to Saint Thomas Island Cyril E King

Search Deals

One-way flight from Portland to Saint Thomas Island Cyril E King

Search Deals

Highest demand for flights based on searches. 2% potential increase in price ($13 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease ($11 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Portland to Saint Thomas Island that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortlandSaint Thomas Island

PWM - STT

PWMSTT

Portland

Fri 1/30

7:00 am-3:06 pm

1 stop7h 06m

Saint Thomas Island Cyril E King

Wed 2/4

6:39 pm-12:05 pm

2 stops18h 26m

$315

PortlandSaint Thomas Island

PWM - STT

PWMSTT

Portland

Tue 2/24

6:30 am-1:49 pm

1 stop6h 19m

Saint Thomas Island Cyril E King

Tue 3/3

5:32 pm-12:18 am

1 stop7h 46m

$315

PortlandSaint Thomas Island

PWM - STT

PWMSTT

Portland

Fri 1/23

5:07 pm-2:23 pm

2 stops20h 16m

Saint Thomas Island Cyril E King

Mon 1/26

2:26 pm-10:54 pm

1 stop9h 28m

$315

PortlandSaint Thomas Island

PWM - STT

PWMSTT

Portland

Tue 1/27

5:07 pm-5:05 pm

2 stops22h 58m

Saint Thomas Island Cyril E King

Tue 2/3

4:47 pm-12:06 pm

2 stops20h 19m

$315

PortlandSaint Thomas Island

PWM - STT

PWMSTT

Portland

Sat 1/24

3:58 pm-1:10 pm

2 stops20h 12m

Saint Thomas Island Cyril E King

Sat 2/7

6:39 pm-12:05 pm

2 stops18h 26m

$315

PortlandSaint Thomas Island

PWM - STT

PWMSTT

Portland

Sun 2/1

3:58 pm-3:06 pm

2 stops22h 08m

Saint Thomas Island Cyril E King

Mon 2/9

4:47 pm-12:05 pm

2 stops20h 18m

$315

PortlandSaint Thomas Island

PWM - STT

PWMSTT

Portland

Tue 2/24

7:00 am-4:31 pm

1 stop8h 31m

Saint Thomas Island Cyril E King

Tue 3/3

2:45 pm-11:51 pm

2 stops10h 06m

$315

PortlandSaint Thomas Island

PWM - STT

PWMSTT

Portland

Sun 2/22

5:30 am-5:31 pm

2 stops11h 01m

Saint Thomas Island Cyril E King

Thu 2/26

2:45 pm-11:51 pm

2 stops10h 06m

$315

PortlandSaint Thomas Island

PWM - STT

PWMSTT

Portland

Sun 1/18

3:58 pm-2:02 pm

2 stops21h 04m

Saint Thomas Island Cyril E King

Tue 3/17

12:02 pm-11:50 pm

2 stops11h 48m

$340

PortlandSaint Thomas Island

PWM - STT

PWMSTT

Portland

Fri 1/9

5:06 pm-4:37 pm

2 stops46h 31m

$234

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

Showing 1-10 of 14 results

Compare providers for flights from Portland to Saint Thomas Island

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Portland to Saint Thomas Island in December.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*1 star
AranGrant	Price Accuracy2 stars	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Portland, Maine-Saint Thomas Island flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Portland, Maine-Saint Thomas Island flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Portland, Maine-Saint Thomas Island flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Portland, Maine-Saint Thomas Island flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Portland, Maine-Saint Thomas Island flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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?

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 51 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, August is the cheapest month in which you can book a flight from Portland, Maine to Saint Thomas Island (average of $123). Flying from Portland, Maine to Saint Thomas Island in April is currently the most expensive (average of $249). 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.

Reviews of airlines servicing Saint Thomas Island

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

7.9

Good

8,008 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Delta

7.9

Good

8,008 reviews

Delta

7.9

Good

8,008 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

United Airlines

7.4

Good

9,095 reviews

Delta

7.9

Good

8,008 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

American Airlines

7.2

Good

11,050 reviews

Delta

7.9

Good

8,008 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

Related info for your journey

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 6h 19m. 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. This flight may include one or multiple stops.
What are the cheapest airlines flying from Portland, Maine to Saint Thomas Island round-trip?
According to our current data, American Airlines ($439), Delta ($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 34% 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, August is the cheapest month in which you can book a flight from Portland, Maine to Saint Thomas Island (average of $123). Flying from Portland, Maine to Saint Thomas Island in April is currently the most expensive (average of $249). 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

St. John

Browse thousands of different options on Cheapflights for your next trip

Top 3 airlines flying from Portland to Saint Thomas Island

Airline	Cheapest	Average	Flexibility	On-time
American Airlines	Cheapest$439	Average$744	FlexibilityNo cancel fee	On-time71%
Delta	Cheapest$439	Average$645	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$459	Average$677	FlexibilityNo cancel fee	On-time69%

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$234+ 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 1/9. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Portland to Saint Thomas Island with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Portland to Saint Thomas Island

Cheapest flights from Portland to Saint Thomas IslandExplore 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 December 12, 2025.

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 December 12, 2025.

Find flight deals from Portland to Saint Thomas Island

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from Portland to Saint Thomas Island that are best for you.

Compare providers for flights from Portland to Saint Thomas Island

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Portland to Saint Thomas Island in December.

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.

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?

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

Reviews of airlines servicing Saint Thomas Island

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.

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?

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

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

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

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

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

Traveling to a place near Saint Thomas Island?

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Alternative routes for Portland to Saint Thomas Island

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Top 3 airlines flying from Portland to Saint Thomas Island

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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 December 12, 2025.