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Saint Thomas Island

$498+ 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 9/12. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — STT
Jun 26 — Jul 31
Fri 6/26
Fri 7/3
1 adult, Economy
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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 May 27, 2026.

This American Airlines deal was found by Cheapflights users on 5/25. 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.
Sat 9/122:07 pm
PDX
-
STT
2 stops19h 44m
American Airlines
Sat 9/191:41 pm
STT
-
PDX
2 stops24h 18m
American Airlines
Deal found 5/25$498
This American Airlines deal was found by Cheapflights users on 5/25. 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 12/110:45 pm
PDX
-
STT
1 stop14h 13m
American Airlines
Tue 12/82:49 pm
STT
-
PDX
1 stop13h 03m
American Airlines
Deal found 5/25$532
This American Airlines deal was found by Cheapflights users on 5/26. 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.
Fri 9/182:07 pm
PDX
-
STT
2 stops19h 44m
American Airlines
Fri 9/251:41 pm
STT
-
PDX
2 stops24h 14m
American Airlines
Deal found 5/26$574
This American Airlines deal was found by Cheapflights users on 5/24. 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.
Sat 10/3111:58 pm
PDX
-
STT
2 stops13h 57m
American Airlines
Sun 11/86:17 pm
STT
-
PDX
2 stops20h 41m
American Airlines
Deal found 5/24$576
This American Airlines deal was found by Cheapflights users on 5/24. 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.
Sun 8/911:34 pm
PDX
-
STT
2 stops13h 18m
American Airlines
Fri 8/144:42 pm
STT
-
PDX
2 stops21h 52m
American Airlines
Deal found 5/24$595
This American Airlines deal was found by Cheapflights users on 5/23. 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.
Sat 10/243:49 pm
PDX
-
STT
2 stops15h 51m
American Airlines
Sat 10/315:40 pm
STT
-
PDX
2 stops21h 30m
American Airlines
Deal found 5/23$610
This United Airlines deal was found by Cheapflights users on 5/23. 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.
Sat 10/2411:55 pm
PDX
-
STT
1 stop10h 35m
United Airlines
Sat 10/314:25 pm
STT
-
PDX
1 stop20h 56m
United Airlines
Deal found 5/23$661
This American Airlines deal was found by Cheapflights users on 5/25. 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 7/1411:15 pm
PDX
-
STT
2 stops13h 45m
American Airlines
Tue 7/214:50 pm
STT
-
PDX
2 stops21h 11m
American Airlines
Deal found 5/25$693

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 (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 May 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$498
(American Airlines)

Popular in

June

Cheapest in

January

Average price

$684
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
Highest demand for flights based on searches. 16% potential increase in price ($145 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($39 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 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 May 27, 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

PDX - STT

PDXSTT

Portland

Sat 10/24

7:15 pm-1:30 pm

2 stops15h 15m

Saint Thomas Island Cyril E King

Sat 10/31

4:25 pm-10:21 am

1 stop20h 56m

$661

PortlandSaint Thomas Island

PDX - STT

PDXSTT

Portland

Mon 7/6

11:15 pm-4:00 pm

2 stops13h 45m

Saint Thomas Island Cyril E King

Sat 7/11

11:43 am-11:55 pm

1 stop15h 12m

$854

PortlandSaint Thomas Island

PDX - STT

PDXSTT

Portland

Fri 7/17

11:40 pm-5:00 pm

2 stops14h 20m

Saint Thomas Island Cyril E King

Tue 7/28

4:45 pm-12:07 pm

3 stops22h 22m

$908
Quickest round-trip

PortlandSaint Thomas Island

PDX - STT

PDXSTT

Portland

Tue 7/14

10:40 pm-12:11 pm

1 stop10h 31m

Saint Thomas Island Cyril E King

Tue 7/21

1:21 pm-9:44 pm

1 stop11h 23m

$924

PortlandSaint Thomas Island

PDX - STT

PDXSTT

Portland

Fri 6/19

11:59 pm-3:43 pm

1 stop12h 44m

Saint Thomas Island Cyril E King

Wed 7/1

1:22 pm-11:13 pm

2 stops12h 51m

$978

PortlandSaint Thomas Island

PDX - STT

PDXSTT

Portland

Sat 9/12

9:45 pm-1:44 pm

1 stop12h 59m

Saint Thomas Island Cyril E King

Sat 9/19

2:54 pm-9:45 pm

1 stop9h 51m

$1,204

PortlandSaint Thomas Island

PDX - STT

PDXSTT

Portland

Thu 6/25

5:15 am-3:43 pm

3 stops31h 28m

Saint Thomas Island Cyril E King

Thu 7/2

4:45 pm-9:47 am

2 stops20h 02m

$1,219

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/24

Sorted by cheapest first

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 May.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 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-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-Saint Thomas Island flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Portland-Saint Thomas Island flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Portland-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-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 to Saint Thomas Island?

Currently, January is the cheapest month in which you can book a flight from Portland to Saint Thomas Island (average of $559). Flying from Portland to Saint Thomas Island in June is currently the most expensive (average of $1,154). 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 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 May 27, 2026.
Read through reviews of airlines operating flights from Portland to Saint Thomas Island, such as Delta,United Airlines, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,423 reviews

Entertainment

7.8

Comfort

7.8

Boarding

8.1

Food

7.2

Crew

8.5

Overall

7.9

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
Delta
7.9
Good
8,423 reviews
Delta
7.9
Good
8,423 reviews

Entertainment

7.8

Comfort

7.8

Boarding

8.1

Food

7.2

Crew

8.5

Overall

7.9

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
United Airlines
7.4
Good
9,751 reviews
Delta
7.9
Good
8,423 reviews

Entertainment

7.8

Comfort

7.8

Boarding

8.1

Food

7.2

Crew

8.5

Overall

7.9

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
American Airlines
7.1
Good
11,640 reviews
Delta
7.9
Good
8,423 reviews

Entertainment

7.8

Comfort

7.8

Boarding

8.1

Food

7.2

Crew

8.5

Overall

7.9

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

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 United Airlines fly from Portland to Saint Thomas Island in about 15h 15m. The time it takes to get you to your destination can typically vary by up to . There are 3764 mi between Portland and Saint Thomas Island.

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

    Flying on Delta is currently your cheapest option to Saint Thomas Island, with prices starting at $282. Additional round-trip tickets that might be worth considering are offered by United Airlines and American Airlines, with the lowest prices starting at $508 and $520, respectively. Delta is priced at 61% 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, January is the cheapest month in which you can book a flight from Portland to Saint Thomas Island (average of $559). Flying from Portland to Saint Thomas Island in June is currently the most expensive (average of $1,154). 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.
Boise 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 May 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$282Average$960FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$508Average$1,058FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$520Average$717FlexibilityNo cancel feeOn-time71%

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