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Cheap flights from Portland to Saint Thomas Island from $459

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to Saint Thomas Island departing on 9/10. 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 to Saint Thomas Island

Cheap round-trip flights

Spirit Airlines Logo
12:07 pm - 9:44 amPDX-STT
18h 37m2 stops
Spirit Airlines Logo
10:49 am - 7:04 pmSTT-PDX
35h 15m2 stops
$459Spirit Airlines
Find Deal
Wed, Sep 10 - Tue, Oct 7
Spirit Airlines Logo
7:52 pm - 3:19 pmPDX-STT
40h 27m2 stops
Spirit Airlines Logo
10:49 am - 11:12 amSTT-PDX
27h 23m2 stops
$471Spirit Airlines
Find Deal
Wed, Aug 27 - Mon, Sep 8
Logo
6:30 pm - 3:19 pmPDX-STT
17h 49m2 stops
Logo
10:49 am - 11:12 amSTT-PDX
27h 23m3 stops
$553
Find Deal
Thu, Aug 28 - Thu, Sep 4
American Airlines Logo
11:59 pm - 4:55 pmPDX-STT
12h 56m2 stops
American Airlines Logo
6:17 pm - 11:10 amSTT-PDX
20h 53m2 stops
$559American Airlines
Find Deal
Mon, Nov 17 - Mon, Nov 24
Logo
7:52 pm - 11:13 amPDX-STT
36h 21m3 stops
Logo
10:49 am - 11:12 amSTT-PDX
27h 23m3 stops
$565
Find Deal
Thu, Aug 28 - Thu, Sep 4
American Airlines Logo
10:45 pm - 4:55 pmPDX-STT
14h 10m1 stop
American Airlines Logo
12:28 pm - 9:15 pmSTT-PDX
12h 47m1 stop
$599American Airlines
Find Deal
Mon, Nov 17 - Mon, Nov 24
Delta Logo
12:46 am - 3:10 pmPDX-STT
11h 24m2 stops
Delta Logo
3:23 pm - 10:12 pmSTT-PDX
9h 49m1 stop
$604Delta
Find Deal
Fri, Aug 22 - Sat, Aug 30
United Airlines Logo
11:59 pm - 4:18 pmPDX-STT
12h 19m1 stop
United Airlines Logo
1:02 pm - 12:44 amSTT-PDX
15h 42m2 stops
$649United Airlines
Find Deal
Sat, Dec 6 - Wed, Dec 10
Delta Logo
9:45 pm - 2:22 pmPDX-STT
12h 37m1 stop
Delta Logo
3:32 pm - 10:32 pmSTT-PDX
11h 00m1 stop
$670Delta
Find Deal
Tue, Dec 2 - Wed, Dec 10
United Airlines Logo
6:59 pm - 12:00 pmPDX-STT
13h 01m2 stops
United Airlines Logo
3:05 pm - 12:19 amSTT-PDX
37h 14m3 stops
$742United Airlines
Find Deal
Mon, Jan 12 - Fri, Jan 23

Spirit Airlines flights from Portland to Saint Thomas Island

Our best Spirit Airlines deals on Portland to Saint Thomas Island flight tickets
Spirit Airlines
Sep 10
PDX12:07 pmPortland
18h 37m
2 stops
STT9:44 amSaint Thomas Island Cyril E King
Oct 7
STT10:49 amSaint Thomas Island Cyril E King
35h 15m
2 stops
PDX7:04 pmPortland
$459
Find similar
Spirit Airlines
Aug 27
PDX7:52 pmPortland
40h 27m
2 stops
STT3:19 pmSaint Thomas Island Cyril E King
Sep 8
STT10:49 amSaint Thomas Island Cyril E King
27h 23m
2 stops
PDX11:12 amPortland
$471
Find similar
Spirit Airlines
Sep 10
PDX12:07 pmPortland
18h 37m
2 stops
STT9:44 amSaint Thomas Island Cyril E King
Oct 7
STT10:49 amSaint Thomas Island Cyril E King
35h 15m
3 stops
PDX7:04 pmPortland
$472
Find similar

American Airlines flights from Portland to Saint Thomas Island

Our best American Airlines deals on Portland to Saint Thomas Island flight tickets
American Airlines
Nov 17
PDX11:59 pmPortland
12h 56m
2 stops
STT4:55 pmSaint Thomas Island Cyril E King
Nov 24
STT6:17 pmSaint Thomas Island Cyril E King
20h 53m
2 stops
PDX11:10 amPortland
$559
Find similar
American Airlines
Nov 17
PDX10:45 pmPortland
14h 10m
1 stop
STT4:55 pmSaint Thomas Island Cyril E King
Nov 24
STT12:28 pmSaint Thomas Island Cyril E King
12h 47m
1 stop
PDX9:15 pmPortland
$599
Find similar
American Airlines
Aug 28
PDX5:42 pmPortland
16h 08m
2 stops
STT12:50 pmSaint Thomas Island Cyril E King
Sep 4
STT1:40 pmSaint Thomas Island Cyril E King
24h 12m
2 stops
PDX10:52 amPortland
$639
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated July 31, 2025.
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

PDX - STT

PDXSTT

Portland

Wed 9/10

12:07 pm-9:44 am

2 stops18h 37m

Saint Thomas Island Cyril E King

Tue 10/7

10:49 am-7:04 pm

2 stops35h 15m

$459

PortlandSaint Thomas Island

PDX - STT

PDXSTT

Portland

Wed 8/27

7:52 pm-3:19 pm

2 stops40h 27m

Saint Thomas Island Cyril E King

Mon 9/8

10:49 am-11:12 am

2 stops27h 23m

$471

PortlandSaint Thomas Island

PDX - STT

PDXSTT

Portland

Thu 8/28

6:30 pm-3:19 pm

2 stops17h 49m

Saint Thomas Island Cyril E King

Thu 9/4

10:49 am-11:12 am

3 stops27h 23m

$553

PortlandSaint Thomas Island

PDX - STT

PDXSTT

Portland

Mon 11/17

11:59 pm-4:55 pm

2 stops12h 56m

Saint Thomas Island Cyril E King

Mon 11/24

6:17 pm-11:10 am

2 stops20h 53m

$559

PortlandSaint Thomas Island

PDX - STT

PDXSTT

Portland

Thu 8/28

7:52 pm-11:13 am

3 stops36h 21m

Saint Thomas Island Cyril E King

Thu 9/4

10:49 am-11:12 am

3 stops27h 23m

$565

PortlandSaint Thomas Island

PDX - STT

PDXSTT

Portland

Mon 11/17

10:45 pm-4:55 pm

1 stop14h 10m

Saint Thomas Island Cyril E King

Mon 11/24

12:28 pm-9:15 pm

1 stop12h 47m

$599

PortlandSaint Thomas Island

PDX - STT

PDXSTT

Portland

Fri 8/22

12:46 am-3:10 pm

2 stops11h 24m

Saint Thomas Island Cyril E King

Sat 8/30

3:23 pm-10:12 pm

1 stop9h 49m

$604

PortlandSaint Thomas Island

PDX - STT

PDXSTT

Portland

Sat 12/6

11:59 pm-4:18 pm

1 stop12h 19m

Saint Thomas Island Cyril E King

Wed 12/10

1:02 pm-12:44 am

2 stops15h 42m

$649

PortlandSaint Thomas Island

PDX - STT

PDXSTT

Portland

Tue 12/2

9:45 pm-2:22 pm

1 stop12h 37m

Saint Thomas Island Cyril E King

Wed 12/10

3:32 pm-10:32 pm

1 stop11h 00m

$670

PortlandSaint Thomas Island

PDX - STT

PDXSTT

Portland

Mon 1/12

6:59 pm-12:00 pm

2 stops13h 01m

Saint Thomas Island Cyril E King

Fri 1/23

3:05 pm-12:19 am

3 stops37h 14m

$742

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Saint Thomas Island from

How to get the cheapest flight ticket from Portland 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 September is another great option to travel to Saint Thomas Island, with average flight prices from Portland averaging around $497.

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 is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $566. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from Portland to Saint Thomas Island for around $804.

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 morning when flights can be purchased for as low as $385. Flights to Saint Thomas Island are more costly in the evening, with an average ticket price of $691. Departure times in the evening 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 when booking weeks ahead of your departure date. In general, you can expect to find flights to Saint Thomas Island for around $689 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 for as low as $485 on momondo.

Can stopping save me money on Portland to Saint Thomas Island flights?

You could potentially save up to 6% on your flight if you consider stops on a Portland to Saint Thomas Island flight.

When to book flights from Portland to Saint Thomas Island

Are you open to changing your travel dates? Check out the ideal times to fly from Portland 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 to Saint Thomas Island (PDX to STT) flight deals and tips

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

Best Price Found

$459

Fastest flight time

10h 09m

Direct flights

None

Airports in Saint Thomas Island

1 airport
The best flight deal from Portland to Saint Thomas Island found on momondo in the last 72 hours is $459
The fastest flight from Portland to Saint Thomas Island takes 10h 09m
There are no direct flights from Portland to Saint Thomas Island. Popular non-direct route for this connection is Portland Airport - Saint Thomas Island Cyril E King Airport.
There is 1 airport near Saint Thomas Island: Saint Thomas Island Cyril E King (STT)
Search flight deals

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

    The distance between Portland and Saint Thomas Island Cyril E King is about 3769.0 mi. In terms of flight time, this usually takes a little over 10h 09m.

  • 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 are updated 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?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check 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 required for your trip to Saint Thomas Island Cyril E King Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Saint Thomas Island Cyril E King Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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

Best airlines flying from Portland to Saint Thomas Island

Compare and see reviews for airlines that fly from Portland to Saint Thomas Island with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $213Free CancellationRating
6.3
8,049 reviews
Search Spirit Airlines flights
United AirlinesPriceFrom $281Free CancellationRating
7.4
8,900 reviews
Search United Airlines flights
DeltaPriceFrom $437Free CancellationRating
8.0
7,981 reviews
Search Delta flights
American AirlinesPriceFrom $437Free CancellationRating
7.2
10,000 reviews
Search American 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?

Yes. momondo allows you to filter the results for Portland to Saint Thomas Island flights to just show those with flexible booking policies.

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

Once all potential Portland to Saint Thomas Island flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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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