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Saint Thomas Island

$278+ Cheap flights from Portland (PDX) to Saint Thomas Island (STT)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/10. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — STT
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
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 August or September, booked 32 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 July 3, 2025.

Round-trip from

$443
(Mytrip)

One-way from

$278
(United Airlines)

Popular in

June

Cheapest in

August

Average price

$609
From Portland to Saint Thomas Island Cyril E King
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One-way flight from Portland to Saint Thomas Island Cyril E King
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Highest demand for flights based on searches. 17% potential increase in price ($142 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($32 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 3, 2025.

This Mytrip deal was found by Cheapflights users on 7/1. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/173:10 pmPDX - STT
2 stops18h 20mSpirit Airlines
Mon 7/2110:43 amSTT - PDX
2 stops25h 35mSpirit Airlines
Deal found 7/1$443
This Mytrip deal was found by Cheapflights users on 7/2. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/217:52 pmPDX - STT
3 stops36h 21mMultiple Airlines
Sat 9/610:49 amSTT - PDX
2 stops27h 23mMultiple Airlines
Deal found 7/2$498
This American Airlines deal was found by Cheapflights users on 7/3. 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 8/153:22 pmPDX - STT
2 stops17h 31mAmerican Airlines
Sat 8/2312:44 pmSTT - PDX
2 stops13h 42mAmerican Airlines
Deal found 7/3$559
This Delta deal was found by Cheapflights users on 7/2. 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.
Tue 10/149:45 pmPDX - STT
1 stop12h 47mDelta
Fri 10/172:42 pmSTT - PDX
1 stop10h 50mDelta
Deal found 7/2$674
This United Airlines deal was found by Cheapflights users on 7/3. 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 8/1511:20 pmPDX - STT
1 stop9h 59mUnited Airlines
Sat 8/2312:10 pmSTT - PDX
1 stop10h 53mUnited Airlines
Deal found 7/3$755

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 July 3, 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 7/17

3:10 pm-12:30 pm

2 stops18h 20m

Saint Thomas Island Cyril E King

Mon 7/21

10:43 am-9:18 am

2 stops25h 35m

$443

PortlandSaint Thomas Island

PDX - STT

PDXSTT

Portland

Thu 8/21

7:52 pm-11:13 am

3 stops36h 21m

Saint Thomas Island Cyril E King

Sat 9/6

10:49 am-11:12 am

2 stops27h 23m

$498

PortlandSaint Thomas Island

PDX - STT

PDXSTT

Portland

Fri 8/15

3:22 pm-11:53 am

2 stops17h 31m

Saint Thomas Island Cyril E King

Sat 8/23

12:44 pm-11:26 pm

2 stops13h 42m

$559

PortlandSaint Thomas Island

PDX - STT

PDXSTT

Portland

Tue 10/14

9:45 pm-1:32 pm

1 stop12h 47m

Saint Thomas Island Cyril E King

Fri 10/17

2:42 pm-10:32 pm

1 stop10h 50m

$674

PortlandSaint Thomas Island

PDX - STT

PDXSTT

Portland

Fri 8/15

11:20 pm-12:19 pm

1 stop9h 59m

Saint Thomas Island Cyril E King

Sat 8/23

12:10 pm-8:03 pm

1 stop10h 53m

$755

PortlandSaint Thomas Island

PDX - STT

PDXSTT

Portland

Wed 12/10

7:30 pm-1:12 pm

2 stops13h 42m

$278

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

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 June 27, 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 32 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 $650). 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 July 3, 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 July 3, 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
7,982 reviews

Overall

8.0

Comfort

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

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
7,982 reviews
Delta
8.0
Very good
7,982 reviews

Overall

8.0

Comfort

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

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
8,861 reviews
Delta
8.0
Very good
7,982 reviews

Overall

8.0

Comfort

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

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
7,982 reviews

Overall

8.0

Comfort

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

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
8,086 reviews
Delta
8.0
Very good
7,982 reviews

Overall

8.0

Comfort

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

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.

  • 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 $443. Additional round-trip tickets that might be worth considering are offered by American Airlines and Delta, with the lowest prices starting at $559 and $674, respectively. Spirit Airlines is priced at 34% 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 $650). 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 Portland?

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St. John

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Alternative routes for Portland to Saint Thomas Island

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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 July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$213Average$363FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$276Average$682FlexibilityNo cancel feeOn-time69%
DeltaCheapest$437Average$722FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$437Average$737FlexibilityNo cancel feeOn-time71%

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