HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Saint Thomas Island

$98+ 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 4/22. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — STT
Apr 9 — Apr 161
Thu 4/9
Thu 4/16
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Portland to Saint Thomas Island with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 March 10, 2026.

This American Airlines deal was found by Cheapflights users on 3/5. 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 4/306:00 am
PWM
-
STT
1 stop6h 35m
American Airlines
Fri 5/82:05 pm
STT
-
PWM
2 stops20h 18m
American Airlines
Deal found 3/5$200
This American Airlines deal was found by Cheapflights users on 3/9. 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 11/256:39 pm
PWM
-
STT
2 stops21h 16m
American Airlines
Wed 12/24:22 pm
STT
-
PWM
2 stops20h 49m
American Airlines
Deal found 3/9$249
This United Airlines deal was found by Cheapflights users on 3/6. 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.
Mon 4/276:04 am
PWM
-
STT
1 stop9h 27m
United Airlines
Thu 4/304:45 pm
STT
-
PWM
1 stop7h 14m
United Airlines
Deal found 3/6$263
This American Airlines deal was found by Cheapflights users on 3/9. 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.
Tue 3/176:29 pm
PWM
-
STT
2 stops20h 17m
American Airlines
Tue 3/242:03 pm
STT
-
PWM
2 stops9h 52m
American Airlines
Deal found 3/9$275
This American Airlines deal was found by Cheapflights users on 3/8. 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 3/187:10 am
PWM
-
STT
1 stop7h 44m
American Airlines
Wed 3/252:03 pm
STT
-
PWM
2 stops9h 52m
American Airlines
Deal found 3/8$280
This United Airlines deal was found by Cheapflights users on 3/7. 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.
Thu 4/306:00 am
PWM
-
STT
1 stop7h 08m
United Airlines
Fri 5/82:10 pm
STT
-
PWM
1 stop9h 13m
United Airlines
Deal found 3/7$301
This Delta deal was found by Cheapflights users on 3/9. 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.
Tue 3/175:23 am
PWM
-
STT
1 stop8h 24m
Delta
Tue 3/243:00 pm
STT
-
PWM
1 stop8h 22m
Delta
Deal found 3/9$334

Find 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 March 10, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$200
(American Airlines)

One-way from

$98
(United Airlines)

Popular in

April

Cheapest in

June

Average price

$618
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. 18% potential increase in price ($140 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($21 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

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 March 10, 2026.
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

Cheapest round-trip

PortlandSaint Thomas Island

PWM - STT

PWMSTT

Portland

Tue 4/14

7:23 pm-2:49 pm

2 stops19h 26m

Saint Thomas Island Cyril E King

Mon 4/20

2:05 pm-9:54 am

2 stops19h 49m

$200

PortlandSaint Thomas Island

PWM - STT

PWMSTT

Portland

Thu 4/30

6:00 am-1:08 pm

1 stop7h 08m

Saint Thomas Island Cyril E King

Fri 5/8

2:10 pm-11:23 pm

1 stop9h 13m

$332

PortlandSaint Thomas Island

PWM - STT

PWMSTT

Portland

Tue 4/28

5:21 am-1:51 pm

1 stop8h 30m

Saint Thomas Island Cyril E King

Mon 5/4

3:59 pm-12:46 am

1 stop8h 47m

$355

PortlandSaint Thomas Island

PWM - STT

PWMSTT

Portland

Thu 4/30

3:39 pm-10:47 am

2 stops19h 08m

Saint Thomas Island Cyril E King

Fri 5/8

2:05 pm-10:23 am

2 stops20h 18m

$360

PortlandSaint Thomas Island

PWM - STT

PWMSTT

Portland

Mon 4/27

5:21 am-2:48 pm

1 stop9h 27m

Saint Thomas Island Cyril E King

Mon 5/4

3:59 pm-12:46 am

1 stop8h 47m

$470
Quickest round-trip

PortlandSaint Thomas Island

PWM - STT

PWMSTT

Portland

Tue 4/28

6:00 am-12:35 pm

1 stop6h 35m

Saint Thomas Island Cyril E King

Mon 5/4

1:15 pm-10:46 pm

1 stop9h 31m

$487

PortlandSaint Thomas Island

PWM - STT

PWMSTT

Portland

Mon 3/23

5:45 am-3:18 pm

1 stop9h 33m

Saint Thomas Island Cyril E King

Wed 3/25

2:05 pm-3:14 pm

1 stop25h 09m

$502

PortlandSaint Thomas Island

PWM - STT

PWMSTT

Portland

Wed 3/25

5:23 am-2:45 pm

1 stop9h 22m

Saint Thomas Island Cyril E King

Mon 3/30

3:00 pm-11:22 pm

1 stop8h 22m

$526
Cheapest one-way
Quickest one-way

PortlandSaint Thomas Island

PWM - STT

PWMSTT

Portland

Wed 4/22

6:04 am-3:31 pm

1 stop9h 27m

$98

PortlandSaint Thomas Island

PWM - STT

PWMSTT

Portland

Tue 3/31

6:04 am-3:31 pm

1 stop9h 27m

$120

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/7

Showing 1-10 of 13 resultsSorted by cheapest first
1
2

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 March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Portland, Maine-Saint Thomas Island flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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

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 November is currently the most expensive (average of $296). 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.

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 March 10, 2026.
Read reviews from past customers who have flown Delta,United Airlines, andAmerican 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
8,276 reviews

Comfort

7.9

Boarding

8.1

Food

7.2

Crew

8.5

Entertainment

7.8

Overall

7.9

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
8,276 reviews
Delta
7.9
Good
8,276 reviews

Comfort

7.9

Boarding

8.1

Food

7.2

Crew

8.5

Entertainment

7.8

Overall

7.9

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.
United Airlines
7.4
Good
9,409 reviews
Delta
7.9
Good
8,276 reviews

Comfort

7.9

Boarding

8.1

Food

7.2

Crew

8.5

Entertainment

7.8

Overall

7.9

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.
American Airlines
7.1
Good
11,413 reviews
Delta
7.9
Good
8,276 reviews

Comfort

7.9

Boarding

8.1

Food

7.2

Crew

8.5

Entertainment

7.8

Overall

7.9

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.

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 7h 08m. American Airlines provides one of the quickest options available for as low as $332. 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 ($284), Delta ($378), and United Airlines ($499) 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 53% 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 November is currently the most expensive (average of $296). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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

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 March 10, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$284Average$658FlexibilityNo cancel feeOn-time71%
DeltaCheapest$378Average$618FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$499Average$677FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
©2026 Cheapflights