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Cheap flights from Portland, Maine to Saint Thomas Island from $138

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland, Maine to Saint Thomas Island departing on 1/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Portland, Maine to Saint Thomas Island

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
7:26 pm - 2:55 pmPWM  Portland-STT Saint Thomas Island Cyril E King
19h 29m2 stops Philadelphia Miami
American Airlines Logo
3:46 pm - 11:03 amSTT  Saint Thomas Island Cyril E King-PWM Portland
19h 17m2 stops Miami Philadelphia
$280American Airlines
Sat, Oct 24 - Thu, Oct 29
American Airlines Logo
7:26 pm - 2:55 pmPWM  Portland-STT Saint Thomas Island Cyril E King
19h 29m2 stops Philadelphia Miami
American Airlines Logo
3:46 pm - 11:03 amSTT  Saint Thomas Island Cyril E King-PWM Portland
19h 17m2 stops Miami Philadelphia
$280American Airlines
Sat, Oct 24 - Thu, Oct 29
American Airlines Logo
4:40 pm - 12:58 pmPWM  Portland-STT Saint Thomas Island Cyril E King
20h 18m2 stops Philadelphia Miami
American Airlines Logo
3:15 pm - 10:37 amSTT  Saint Thomas Island Cyril E King-PWM Portland
20h 22m2 stops Miami Philadelphia
$280American Airlines
Thu, Oct 29 - Mon, Nov 2
United Airlines Logo
5:30 am - 12:56 pmPWM  Portland-STT Saint Thomas Island Cyril E King
7h 26m1 stop Washington, D.C. Dulles Intl
United Airlines Logo
3:00 pm - 11:21 pmSTT  Saint Thomas Island Cyril E King-PWM Portland
9h 21m1 stop Newark
$367United Airlines
Sat, Oct 31 - Wed, Nov 4
United Airlines Logo
5:15 am - 12:58 pmPWM  Portland-STT Saint Thomas Island Cyril E King
7h 43m1 stop Washington, D.C. Dulles Intl
United Airlines Logo
2:00 pm - 11:21 pmSTT  Saint Thomas Island Cyril E King-PWM Portland
9h 21m1 stop Newark
$422United Airlines
Sat, Oct 24 - Thu, Oct 29
United Airlines Logo
5:15 am - 12:58 pmPWM  Portland-STT Saint Thomas Island Cyril E King
7h 43m1 stop Washington, D.C. Dulles Intl
United Airlines Logo
4:45 pm - 10:04 amSTT  Saint Thomas Island Cyril E King-PWM Portland
17h 19m1 stop Washington, D.C. Dulles Intl
$520United Airlines
Sat, Aug 22 - Sat, Aug 29
JetBlue Logo
6:30 am - 3:45 pmPWM  Portland-STT Saint Thomas Island Cyril E King
33h 15m2 stops New York John F Kennedy Intl San Juan Luis Munoz Marin Intl
JetBlue Logo
5:40 pm - 11:43 pmSTT  Saint Thomas Island Cyril E King-PWM Portland
31h 03m2 stops San Juan Luis Munoz Marin Intl New York John F Kennedy Intl
$601JetBlue
Wed, Oct 28 - Mon, Nov 2
Delta Logo
6:00 am - 1:42 pmPWM  Portland-STT Saint Thomas Island Cyril E King
7h 42m1 stop Atlanta Hartsfield-Jackson
Delta Logo
2:47 pm - 11:35 pmSTT  Saint Thomas Island Cyril E King-PWM Portland
8h 48m1 stop Atlanta Hartsfield-Jackson
$648Delta
Wed, Sep 30 - Tue, Oct 6
Multiple Airlines Logo
6:00 am - 5:20 pmPWM  Portland-STT Saint Thomas Island Cyril E King
11h 20m2 stops New York John F Kennedy Intl San Juan Luis Munoz Marin Intl
Multiple Airlines Logo
4:40 pm - 11:43 pmSTT  Saint Thomas Island Cyril E King-PWM Portland
31h 03m2 stops San Juan Luis Munoz Marin Intl New York John F Kennedy Intl
$710Multiple Airlines
Wed, Oct 21 - Tue, Oct 27
Delta Logo
6:00 am - 1:42 pmPWM  Portland-STT Saint Thomas Island Cyril E King
7h 42m1 stop Atlanta Hartsfield-Jackson
Delta Logo
2:52 pm - 11:28 pmSTT  Saint Thomas Island Cyril E King-PWM Portland
8h 36m1 stop Atlanta Hartsfield-Jackson
$775Delta
Fri, Sep 25 - Tue, Sep 29

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American Airlines flights from Portland, Maine to Saint Thomas Island

Our best American Airlines deals on Portland, Maine to Saint Thomas Island flight tickets
American Airlines
Oct 24
PWM7:26 pmPortland
19h 29m
2 stops
STT2:55 pmSaint Thomas Island Cyril E King
Oct 29
STT3:46 pmSaint Thomas Island Cyril E King
19h 17m
2 stops
PWM11:03 amPortland
$280
American Airlines
Oct 28
PWM5:09 pmPortland
19h 49m
2 stops
STT12:58 pmSaint Thomas Island Cyril E King
Nov 1
STT3:15 pmSaint Thomas Island Cyril E King
20h 22m
2 stops
PWM10:37 amPortland
$285
American Airlines
Oct 24
PWM7:26 pmPortland
19h 29m
2 stops
STT2:55 pmSaint Thomas Island Cyril E King
Oct 29
STT1:19 pmSaint Thomas Island Cyril E King
9h 17m
1 stop
PWM10:36 pmPortland
$359

United Airlines flights from Portland, Maine to Saint Thomas Island

Our best United Airlines deals on Portland, Maine to Saint Thomas Island flight tickets
United Airlines
Oct 31
PWM5:30 amPortland
7h 26m
1 stop
STT12:56 pmSaint Thomas Island Cyril E King
Nov 4
STT3:00 pmSaint Thomas Island Cyril E King
9h 21m
1 stop
PWM11:21 pmPortland
$367
United Airlines
Oct 24
PWM5:15 amPortland
7h 43m
1 stop
STT12:58 pmSaint Thomas Island Cyril E King
Oct 29
STT2:00 pmSaint Thomas Island Cyril E King
9h 21m
1 stop
PWM11:21 pmPortland
$422
United Airlines
Aug 22
PWM5:15 amPortland
7h 43m
1 stop
STT12:58 pmSaint Thomas Island Cyril E King
Aug 29
STT4:45 pmSaint Thomas Island Cyril E King
21h 49m
2 stops
PWM2:34 pmPortland
$520

momondo Fare Finder

 
Customize your flight search to find flights from Portland, Maine 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, momondo users made 832,500 searches. Data last updated August 5, 2026.
Use the filters below to find and compare flights from Portland, Maine to Saint Thomas Island that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandSaint Thomas Island

PWM Portland - STT Saint Thomas Island Cyril E King

PWMSTT

Portland

Sat 10/24

7:26 pm-2:55 pm

2 stops19h 29m

Saint Thomas Island Cyril E King

Thu 10/29

3:46 pm-11:03 am

2 stops19h 17m

$280

PortlandSaint Thomas Island

PWM Portland - STT Saint Thomas Island Cyril E King

PWMSTT

Portland

Sat 10/24

7:26 pm-2:55 pm

2 stops19h 29m

Saint Thomas Island Cyril E King

Thu 10/29

3:46 pm-11:03 am

2 stops19h 17m

$280

PortlandSaint Thomas Island

PWM Portland - STT Saint Thomas Island Cyril E King

PWMSTT

Portland

Thu 10/29

4:40 pm-12:58 pm

2 stops20h 18m

Saint Thomas Island Cyril E King

Mon 11/2

3:15 pm-10:37 am

2 stops20h 22m

$280

PortlandSaint Thomas Island

PWM Portland - STT Saint Thomas Island Cyril E King

PWMSTT

Portland

Sat 10/31

5:30 am-12:56 pm

1 stop7h 26m

Saint Thomas Island Cyril E King

Wed 11/4

3:00 pm-11:21 pm

1 stop9h 21m

$367

PortlandSaint Thomas Island

PWM Portland - STT Saint Thomas Island Cyril E King

PWMSTT

Portland

Sat 10/24

5:15 am-12:58 pm

1 stop7h 43m

Saint Thomas Island Cyril E King

Thu 10/29

2:00 pm-11:21 pm

1 stop9h 21m

$422

PortlandSaint Thomas Island

PWM Portland - STT Saint Thomas Island Cyril E King

PWMSTT

Portland

Sat 8/22

5:15 am-12:58 pm

1 stop7h 43m

Saint Thomas Island Cyril E King

Sat 8/29

4:45 pm-10:04 am

1 stop17h 19m

$520

PortlandSaint Thomas Island

PWM Portland - STT Saint Thomas Island Cyril E King

PWMSTT

Portland

Wed 10/28

6:30 am-3:45 pm

2 stops33h 15m

Saint Thomas Island Cyril E King

Mon 11/2

5:40 pm-11:43 pm

2 stops31h 03m

$601

PortlandSaint Thomas Island

PWM Portland - STT Saint Thomas Island Cyril E King

PWMSTT

Portland

Wed 9/30

6:00 am-1:42 pm

1 stop7h 42m

Saint Thomas Island Cyril E King

Tue 10/6

2:47 pm-11:35 pm

1 stop8h 48m

$648

PortlandSaint Thomas Island

PWM Portland - STT Saint Thomas Island Cyril E King

PWMSTT

Portland

Wed 10/21

6:00 am-5:20 pm

2 stops11h 20m

Saint Thomas Island Cyril E King

Tue 10/27

4:40 pm-11:43 pm

2 stops31h 03m

$710
Quickest round-trip

PortlandSaint Thomas Island

PWM Portland - STT Saint Thomas Island Cyril E King

PWMSTT

Portland

Fri 9/25

6:00 am-1:42 pm

1 stop7h 42m

Saint Thomas Island Cyril E King

Tue 9/29

2:52 pm-11:28 pm

1 stop8h 36m

$775

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Saint Thomas Island from

How to get the cheapest flight ticket from Portland, Maine to Saint Thomas Island

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Saint Thomas Island?

The month of December is another great option to travel to Saint Thomas Island, with average flight prices from Portland, Maine averaging around $433.

How have Portland, Maine to Saint Thomas Island flight prices changed over time?

When to book flights from Portland, Maine to Saint Thomas Island

Are you open to changing your travel dates? Check out the ideal times to fly from Portland, Maine to Saint Thomas Island according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Portland, Maine to Saint Thomas Island (PWM to STT) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland, Maine to Saint Thomas Island

Fastest flight time

7h 26m

Direct flights

None
The fastest flight from Portland, Maine to Saint Thomas Island takes 7h 26m
There are no direct flights from Portland, Maine to Saint Thomas Island. There are no popular flight routes from Portland, Maine to Saint Thomas Island.
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Frequently asked questions about flying from Portland, Maine to Saint Thomas Island

  • How far is Portland to Saint Thomas Island Cyril E King by plane?

    Saint Thomas Island Cyril E King is 1775.4 mi away from Portland. By plane, this route typically takes 7h 26m.

  • When did momondo last update prices for flights from Portland Airport to Saint Thomas Island Cyril E King Airport?

    Prices for flights from Portland Airport to Saint Thomas Island Cyril E King Airport refresh daily.

  • How many operators does momondo search for flights from Portland Airport to Saint Thomas Island Cyril E King Airport?

  • How old do you have to be to fly from Portland Airport to Saint Thomas Island Cyril E King Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portland Airport to Saint Thomas Island Cyril E King Airport.

  • What documentation or ID do you need to fly to Saint Thomas Island Cyril E King Airport?

    The travel and health documents you'll need for your trip to Saint Thomas Island Cyril E King Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Saint Thomas Island Cyril E King Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Portland, Maine to Saint Thomas Island?

Best airlines flying from Portland, Maine to Saint Thomas Island

Compare and see reviews for airlines that fly from Portland, Maine to Saint Thomas Island with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $185Free CancellationRating
7.4
10,058 reviews
Search United Airlines flights
American AirlinesPriceFrom $260Free CancellationRating
7.1
11,848 reviews
Search American Airlines flights
DeltaPriceFrom $336Free CancellationRating
7.8
8,490 reviews
Search Delta flights

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

Why use momondo?

Why should I use momondo to find a flight deal from Portland to Saint Thomas Island?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Saint Thomas Island from Portland.

Can I find flights from Portland to Saint Thomas Island with flexible booking policies on momondo?

All flight searches from Portland to Saint Thomas Island on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Portland to Saint Thomas Island?

momondo provides multiple filters to help you find the best flight to Saint Thomas Island from Portland. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Portland to Saint Thomas Island right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Portland to Saint Thomas Island flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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