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Saint Thomas Island

$559+ Cheap flights from Portland (PDX) to Saint Thomas Island (STT)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/11. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — STT
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheapflights Tip: The best prices from Portland to Saint Thomas Island Cyril E King are usually found in January or September, booked 58 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

Cheap flight deals from Portland to Saint Thomas Island

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) 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 September 17, 2025.

Round-trip from

$559
(American Airlines)

Popular in

June

Cheapest in

January

Average price

$527
From Portland to Saint Thomas Island Cyril E King
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($153 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($34 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find 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 September 17, 2025.

This American Airlines deal was found by Cheapflights users on 9/15. 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.
Mon 11/1710:45 pmPDX - STT
1 stop14h 12mAmerican Airlines
Mon 11/246:17 pmSTT - PDX
2 stops20h 53mAmerican Airlines
Deal found 9/15$559
This CheapTickets deal was found by Cheapflights users on 9/16. 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 CheapTickets is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/317:29 pmPDX - STT
2 stops14h 30mMultiple Airlines
Fri 11/74:06 pmSTT - PDX
2 stops23h 50mMultiple Airlines
Deal found 9/16$623
This Delta deal was found by Cheapflights users on 9/16. 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.
Fri 10/177:15 pmPDX - STT
2 stops16h 35mDelta
Thu 10/232:49 pmSTT - PDX
1 stop10h 19mDelta
Deal found 9/16$631
This United Airlines deal was found by Cheapflights users on 9/16. 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.
Fri 10/1711:55 pmPDX - STT
1 stop12h 48mUnited Airlines
Sun 10/262:35 pmSTT - PDX
1 stop11h 10mUnited Airlines
Deal found 9/16$649
This United Airlines deal was found by Cheapflights users on 9/15. 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 11/33:54 pmPDX - STT
2 stops17h 18mUnited Airlines
Sat 11/81:02 pmSTT - PDX
1 stop11h 27mUnited Airlines
Deal found 9/15$690
This United Airlines deal was found by Cheapflights users on 9/16. 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.
Fri 10/177:35 pmPDX - STT
2 stops17h 08mUnited Airlines
Sat 10/2512:40 pmSTT - PDX
1 stop12h 47mUnited Airlines
Deal found 9/16$694
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Sun 11/237:10 pmPDX - STT
2 stops14h 02mUnited Airlines
Thu 11/271:02 pmSTT - PDX
1 stop11h 27mUnited Airlines
Deal found 9/15$735
This Delta deal was found by Cheapflights users on 9/16. 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.
Fri 10/177:15 pmPDX - STT
2 stops15h 24mDelta
Tue 10/212:49 pmSTT - PDX
1 stop10h 19mDelta
Deal found 9/16$746

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 September 17, 2025.
Use the filters below to find and compare flights from Portland to Saint Thomas Island that are best for you.

Fly from

Portland

Fly to

Saint Thomas Island

Route

Depart

Return

Price

PortlandSaint Thomas Island

PDX - STT

PDXSTT

Portland

Thu 12/11

10:45 pm-4:58 pm

1 stop14h 13m

Saint Thomas Island Cyril E King

Fri 12/19

2:31 pm-10:18 pm

1 stop11h 47m

$559

PortlandSaint Thomas Island

PDX - STT

PDXSTT

Portland

Mon 11/17

5:42 pm-3:49 pm

2 stops18h 07m

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 1/15

10:55 pm-5:25 pm

1 stop14h 30m

Saint Thomas Island Cyril E King

Sun 1/25

6:35 pm-10:28 am

2 stops19h 53m

$559

PortlandSaint Thomas Island

PDX - STT

PDXSTT

Portland

Fri 10/17

7:15 pm-2:50 pm

2 stops16h 35m

Saint Thomas Island Cyril E King

Thu 10/23

2:49 pm-10:08 pm

1 stop10h 19m

$631

PortlandSaint Thomas Island

PDX - STT

PDXSTT

Portland

Sat 1/17

11:59 pm-4:18 pm

1 stop12h 19m

Saint Thomas Island Cyril E King

Mon 2/2

3:05 pm-10:32 pm

1 stop11h 27m

$649

PortlandSaint Thomas Island

PDX - STT

PDXSTT

Portland

Fri 10/17

11:55 pm-3:43 pm

1 stop12h 48m

Saint Thomas Island Cyril E King

Sun 10/26

2:35 pm-10:45 pm

1 stop11h 10m

$649

PortlandSaint Thomas Island

PDX - STT

PDXSTT

Portland

Sat 10/18

3:50 pm-1:08 pm

2 stops18h 18m

Saint Thomas Island Cyril E King

Sun 10/26

2:35 pm-10:45 pm

1 stop11h 10m

$649

PortlandSaint Thomas Island

PDX - STT

PDXSTT

Portland

Tue 3/10

6:42 pm-2:50 pm

2 stops17h 08m

Saint Thomas Island Cyril E King

Wed 3/11

5:30 pm-9:00 pm

2 stops30h 30m

$669

PortlandSaint Thomas Island

PDX - STT

PDXSTT

Portland

Sun 12/21

10:35 pm-3:35 pm

1 stop13h 00m

$598

PortlandSaint Thomas Island

PDX - STT

PDXSTT

Portland

Sun 12/21

11:55 pm-1:56 pm

2 stops34h 01m

$637

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 11 results
1
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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 to Saint Thomas Island?

Use this chart to determine the optimal time to book a round-trip flight from Portland to Saint Thomas Island. Price data was last updated on September 12, 2025.

The price you pay for your flight from Portland to Saint Thomas Island may vary depending on when you book. For the best chance of a lower fare, look to book 57 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, September is the cheapest month in which you can book a flight from Portland to Saint Thomas Island (average of $433). Flying from Portland to Saint Thomas Island in June is currently the most expensive (average of $643). 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.

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

Find hourly flight availability from Portland to Saint Thomas Island. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 17, 2025.

When flying from Portland to Saint Thomas Island, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 45% versus a flight in the evening.

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 September 17, 2025.
Read through reviews of airlines operating flights from Portland to Saint Thomas Island, such as Delta, United Airlines, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,961 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,961 reviews
Delta
8.0
Very good
7,961 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,926 reviews
Delta
8.0
Very good
7,961 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,961 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Spirit Airlines
6.3
Okay
8,023 reviews
Delta
8.0
Very good
7,961 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 to Saint Thomas Island?

    Airlines like American Airlines, Delta, and United Airlines fly from Portland to Saint Thomas Island in about 12h 19m. The time it takes to get you to your destination can typically vary by up to 4h 16m. There are 3764 mi between Portland and Saint Thomas Island. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    Flying on Spirit Airlines is currently your cheapest option to Saint Thomas Island, with prices starting at $213. Additional round-trip tickets that might be worth considering are offered by United Airlines and American Airlines, with the lowest prices starting at $371 and $437, respectively. Spirit Airlines is priced at 70% lower than the current average price of a flight leaving 3 months from now.

  • 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 to Saint Thomas Island?

    Currently, September is the cheapest month in which you can book a flight from Portland to Saint Thomas Island (average of $433). Flying from Portland to Saint Thomas Island in June is currently the most expensive (average of $643). 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

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Alternative routes for Portland to Saint Thomas Island

See prices for flight routes from nearby airports that may be better suited for you.
Portland to Christiansted flights
Boise to Saint Thomas Island flights
Redmond to Saint Thomas Island flights

Top 4 airlines flying from Portland to Saint Thomas Island

Discover the top 4 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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$213Average$374FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$371Average$731FlexibilityNo cancel feeOn-time69%
DeltaCheapest$437Average$735FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$437Average$756FlexibilityNo cancel feeOn-time71%

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