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Cheap flights from Portland, Maine to Saint Thomas Island from $267

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 10/18. 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
0 bags

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

Cheap round-trip flights

American Airlines Logo
6:36 pm - 4:57 pmPWM-STT
21h 21m2 stops
American Airlines Logo
6:17 pm - 11:50 amSTT-PWM
18h 33m2 stops
$459American Airlines
Find Deal
mié., nov. 12 - lun., nov. 17
American Airlines Logo
1:22 pm - 11:50 amPWM-STT
21h 28m2 stops
American Airlines Logo
3:30 pm - 12:00 pmSTT-PWM
20h 30m2 stops
$484American Airlines
Find Deal
dom., ene. 18 - mar., mar. 17
American Airlines Logo
6:36 pm - 4:57 pmPWM-STT
21h 21m2 stops
American Airlines Logo
4:17 pm - 12:08 pmSTT-PWM
20h 51m2 stops
$492American Airlines
Find Deal
sáb., nov. 8 - dom., nov. 16
American Airlines Logo
4:50 pm - 11:50 amPWM-STT
18h 00m2 stops
American Airlines Logo
4:35 pm - 11:39 amSTT-PWM
20h 04m2 stops
$499American Airlines
Find Deal
lun., feb. 9 - vie., feb. 13
Delta Logo
5:30 am - 3:54 pmPWM-STT
9h 24m1 stop
Delta Logo
4:59 pm - 11:49 pmSTT-PWM
7h 50m1 stop
$524Delta
Find Deal
lun., feb. 9 - vie., feb. 13
Delta Logo
5:30 am - 3:54 pmPWM-STT
9h 24m1 stop
Delta Logo
3:56 pm - 11:49 pmSTT-PWM
7h 53m1 stop
$660Delta
Find Deal
dom., ene. 18 - mar., mar. 17
United Airlines Logo
6:00 am - 1:08 pmPWM-STT
7h 08m1 stop
United Airlines Logo
2:10 pm - 11:20 pmSTT-PWM
9h 10m1 stop
$664United Airlines
Find Deal
dom., oct. 12 - sáb., oct. 18
United Airlines Logo
6:00 am - 1:08 pmPWM-STT
7h 08m1 stop
United Airlines Logo
2:10 pm - 11:59 pmSTT-PWM
9h 49m2 stops
$689United Airlines
Find Deal
dom., oct. 12 - sáb., oct. 18
Logo
6:00 am - 1:08 pmPWM-STT
7h 08m1 stop
Logo
5:45 pm - 9:11 amSTT-PWM
15h 26m2 stops
$762
Find Deal
dom., oct. 12 - sáb., oct. 18
JetBlue Logo
7:09 am - 5:20 pmPWM-STT
10h 11m2 stops
JetBlue Logo
7:49 am - 11:04 pmSTT-PWM
15h 15m2 stops
$768JetBlue
Find Deal
dom., oct. 12 - sáb., oct. 18

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
Nov 12
PWM6:36 pmPortland
21h 21m
2 stops
STT4:57 pmSaint Thomas Island Cyril E King
Nov 17
STT6:17 pmSaint Thomas Island Cyril E King
18h 33m
2 stops
PWM11:50 amPortland
$459
Find similar
American Airlines
Jan 18
PWM1:22 pmPortland
21h 28m
2 stops
STT11:50 amSaint Thomas Island Cyril E King
Mar 17
STT3:30 pmSaint Thomas Island Cyril E King
20h 30m
2 stops
PWM12:00 pmPortland
$484
Find similar
American Airlines
Nov 8
PWM6:36 pmPortland
21h 21m
2 stops
STT4:57 pmSaint Thomas Island Cyril E King
Nov 16
STT4:17 pmSaint Thomas Island Cyril E King
20h 51m
2 stops
PWM12:08 pmPortland
$492
Find similar

Delta flights from Portland, Maine to Saint Thomas Island

Our best Delta deals on Portland, Maine to Saint Thomas Island flight tickets
Delta
Feb 9
PWM5:30 amPortland
9h 24m
1 stop
STT3:54 pmSaint Thomas Island Cyril E King
Feb 13
STT4:59 pmSaint Thomas Island Cyril E King
7h 50m
1 stop
PWM11:49 pmPortland
$524
Find similar
Delta
Jan 18
PWM5:30 amPortland
9h 24m
1 stop
STT3:54 pmSaint Thomas Island Cyril E King
Mar 17
STT3:56 pmSaint Thomas Island Cyril E King
7h 53m
1 stop
PWM11:49 pmPortland
$660
Find similar
Delta
Jan 18
PWM5:30 amPortland
9h 24m
1 stop
STT3:54 pmSaint Thomas Island Cyril E King
Mar 17
STT1:00 pmSaint Thomas Island Cyril E King
8h 59m
1 stop
PWM9:59 pmPortland
$669
Find similar

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 agosto 28, 2025.
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

PortlandSaint Thomas Island

PWM - STT

PWMSTT

Portland

mié. 11/12

6:36 pm-4:57 pm

2 stops21h 21m

Saint Thomas Island Cyril E King

lun. 11/17

6:17 pm-11:50 am

2 stops18h 33m

$459

PortlandSaint Thomas Island

PWM - STT

PWMSTT

Portland

dom. 1/18

1:22 pm-11:50 am

2 stops21h 28m

Saint Thomas Island Cyril E King

mar. 3/17

3:30 pm-12:00 pm

2 stops20h 30m

$484

PortlandSaint Thomas Island

PWM - STT

PWMSTT

Portland

sáb. 11/8

6:36 pm-4:57 pm

2 stops21h 21m

Saint Thomas Island Cyril E King

dom. 11/16

4:17 pm-12:08 pm

2 stops20h 51m

$492

PortlandSaint Thomas Island

PWM - STT

PWMSTT

Portland

lun. 2/9

4:50 pm-11:50 am

2 stops18h 00m

Saint Thomas Island Cyril E King

vie. 2/13

4:35 pm-11:39 am

2 stops20h 04m

$499

PortlandSaint Thomas Island

PWM - STT

PWMSTT

Portland

lun. 2/9

5:30 am-3:54 pm

1 stop9h 24m

Saint Thomas Island Cyril E King

vie. 2/13

4:59 pm-11:49 pm

1 stop7h 50m

$524

PortlandSaint Thomas Island

PWM - STT

PWMSTT

Portland

dom. 1/18

5:30 am-3:54 pm

1 stop9h 24m

Saint Thomas Island Cyril E King

mar. 3/17

3:56 pm-11:49 pm

1 stop7h 53m

$660

PortlandSaint Thomas Island

PWM - STT

PWMSTT

Portland

dom. 10/12

6:00 am-1:08 pm

1 stop7h 08m

Saint Thomas Island Cyril E King

sáb. 10/18

2:10 pm-11:20 pm

1 stop9h 10m

$664

PortlandSaint Thomas Island

PWM - STT

PWMSTT

Portland

dom. 10/12

6:00 am-1:08 pm

1 stop7h 08m

Saint Thomas Island Cyril E King

sáb. 10/18

2:10 pm-11:59 pm

2 stops9h 49m

$689

PortlandSaint Thomas Island

PWM - STT

PWMSTT

Portland

dom. 10/12

6:00 am-1:08 pm

1 stop7h 08m

Saint Thomas Island Cyril E King

sáb. 10/18

5:45 pm-9:11 am

2 stops15h 26m

$762

PortlandSaint Thomas Island

PWM - STT

PWMSTT

Portland

dom. 10/12

7:09 am-5:20 pm

2 stops10h 11m

Saint Thomas Island Cyril E King

sáb. 10/18

7:49 am-11:04 pm

2 stops15h 15m

$768

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 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 day to depart on your flight to Saint Thomas Island?

On average, the least expensive day to fly to Saint Thomas Island from Portland, Maine is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $535. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from Portland, Maine to Saint Thomas Island for around $791.

What is the cheapest time of day to depart on your flight to Saint Thomas Island?

The cheapest time of day to fly to Saint Thomas Island is in the afternoon when flights can be purchased for as low as $555. Flights to Saint Thomas Island are more costly in the morning, with an average ticket price of $657. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

How far in advance should I book a flight to Saint Thomas Island?

You are more likely to see cheaper flights to Saint Thomas Island from Portland, Maine when booking weeks ahead of your departure date. In general, you can expect to find flights to Saint Thomas Island for around $676 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Saint Thomas Island from Portland, Maine for as low as $560 on momondo.

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

As of August 2025, prices for Portland, Maine to Saint Thomas Island flights are approximately 27% more expensive when compared to flights at the same time last year.

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

Direct flights

None
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.
Search flight deals

  • 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 6h 23m.

  • 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
DeltaPriceFrom $418Free CancellationRating
7.9
7,977 reviews
Search Delta flights
American AirlinesPriceFrom $439Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $459Free CancellationRating
7.4
8,944 reviews
Search United Airlines 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.

An easier way to manage your Saint Thomas Island trip

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