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 $281 and $437, respectively. Spirit Airlines is priced at 69% lower than the current average price of a flight leaving 3 months from now.

What is the cheapest day to fly from Portland to Saint Thomas Island?

Travelers seeking maximum savings on their Portland to Saint Thomas Island flight should consider departing on Tuesday mornings when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

What are the most popular airlines that fly from Portland to Saint Thomas Island?

Consider American Airlines, Delta or Spirit Airlines when booking your flight. These represent the most popular airlines when flying from Portland to Saint Thomas Island.

What is the cheapest day to fly round-trip from Portland to Saint Thomas Island?

Users have found that leaving on a Monday can be a cost-effective option. It’s possible to save up to 42% on your flight compared to booking on days when demand is much higher.

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

Find a great deal and save up to 147% by booking at least 33 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Portland to Saint Thomas Island within the next two weeks, with the cheapest ticket starting at $305.

What is the cheapest month to fly from Portland to Saint Thomas Island?

Our data shows that January tends to be the cheapest month to fly to Saint Thomas Island from Portland. Users have commonly found prices around $706 for the month, but tickets can be as low as $427. Due to multiple factors, prepare for potentially higher prices in June.

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.

$246+ Flights from Portland to Saint Thomas Island

Q: How much does it cost to fly round-trip from Portland to Saint Thomas Island?

Airfare is typical for this route at the moment. Portland to Saint Thomas Island flights typically cost between $374 and $717 in November. The cheapest round-trip price found within the last 3 days was $417 on Spirit Airlines (Nov 3-Nov 10).

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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 32 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

Cheap flight deals from Portland to Saint Thomas Island

Round-trip from	$417 (Orbitz)
One-way from	$246 (Kiwi.com)
Popular in	June
Cheapest in	January
Average price	$558

From Portland to Saint Thomas Island Cyril E King

Search Deals

One-way flight from Portland to Saint Thomas Island Cyril E King

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Highest demand for flights based on searches. 18% potential increase in price ($162 potential increase over avg. RT price).

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Cheapest flight prices on average. 5% potential price decrease ($35 potential savings vs. average RT price).

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Average for round-trip flights in August 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 August 16, 2025.

Mon 11/312:37 pmPDX - STT

2 stops18h 14mSpirit Airlines

Mon 11/101:33 pmSTT - PDX

2 stops25h 16mSpirit Airlines

Deal found 8/15

$417

Fri 9/2612:07 pmPDX - STT

2 stops18h 37mSpirit Airlines

Mon 9/2910:49 amSTT - PDX

2 stops27h 22mSpirit Airlines

Deal found 8/13

$498

Sat 10/48:18 pmPDX - STT

3 stops34h 38mSpirit Airlines

Fri 10/1011:01 amSTT - PDX

3 stops35h 35mSpirit Airlines

Deal found 8/13

$534

Fri 10/312:07 pmPDX - STT

2 stops45h 52mSpirit Airlines

Tue 10/711:01 amSTT - PDX

2 stops35h 35mSpirit Airlines

Deal found 8/13

$543

Wed 8/277:52 pmPDX - STT

2 stops38h 56mSpirit Airlines

Mon 9/810:49 amSTT - PDX

2 stops27h 22mSpirit Airlines

Deal found 8/13

$544

Mon 11/1711:59 pmPDX - STT

2 stops12h 56mAmerican Airlines

Mon 11/246:17 pmSTT - PDX

2 stops20h 53mAmerican Airlines

Deal found 8/15

$559

Fri 10/32:06 pmPDX - STT

2 stops19h 44mAmerican Airlines

Tue 10/712:40 pmSTT - PDX

1 stop10h 37mAmerican Airlines

Deal found 8/13

$599

Thu 10/95:52 pmPDX - STT

3 stops37h 04mMultiple Airlines

Wed 10/1511:01 amSTT - PDX

3 stops33h 33mMultiple Airlines

Deal found 8/13

$605

Thu 10/93:19 pmPDX - STT

2 stops16h 31mAmerican Airlines

Wed 10/155:20 pmSTT - PDX

2 stops22h 41mAmerican Airlines

Deal found 8/13

$639

Best flights from Portland to Saint Thomas Island
Discover carefully curated flight deals from Portland to Saint Thomas Island that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 16, 2025.

Mon 11/312:37 pmPDX - STT

2 stops18h 14mSpirit Airlines

Mon 11/101:33 pmSTT - PDX

2 stops25h 16mSpirit Airlines

Deal found 8/15

$417

Tue 1/207:30 pmPDX - STT

2 stops16h 48mUnited Airlines

Mon 1/261:05 pmSTT - PDX

2 stops13h 30mUnited Airlines

Deal found 8/14

$559

Mon 1/123:36 pmPDX - STT

2 stops16h 34mAmerican Airlines

Fri 1/236:35 pmSTT - PDX

2 stops21h 45mAmerican Airlines

Deal found 8/13

$559

Tue 1/205:45 pmPDX - STT

2 stops16h 00mDelta

Tue 1/274:00 pmSTT - PDX

1 stop10h 39mDelta

Deal found 8/14

$559

Fri 9/2612:07 pmPDX - STT

2 stops18h 37mSpirit Airlines

Mon 9/2910:49 amSTT - PDX

2 stops27h 22mSpirit Airlines

Deal found 8/13

$498

Sat 10/48:18 pmPDX - STT

3 stops34h 38mSpirit Airlines

Fri 10/1011:01 amSTT - PDX

3 stops35h 35mSpirit Airlines

Deal found 8/13

$534

Fri 10/312:07 pmPDX - STT

2 stops45h 52mSpirit Airlines

Tue 10/711:01 amSTT - PDX

2 stops35h 35mSpirit Airlines

Deal found 8/13

$543

Wed 8/277:52 pmPDX - STT

2 stops38h 56mSpirit Airlines

Mon 9/810:49 amSTT - PDX

2 stops27h 22mSpirit Airlines

Deal found 8/13

$544

Last-minute flights from Portland to Saint Thomas Island
Discover last-minute flight deals from Portland to Saint Thomas Island. Data last updated August 16, 2025 and is based on user searches.

Wed 8/277:52 pmPDX - STT

2 stops38h 56mSpirit Airlines

Mon 9/810:49 amSTT - PDX

2 stops27h 22mSpirit Airlines

Deal found 8/13

$544

Thu 8/287:52 pmPDX - STT

3 stops36h 21mSpirit Airlines

Mon 9/112:18 pmSTT - PDX

3 stops33h 39mSpirit Airlines

Deal found 8/13

$744

Thu 8/286:30 pmPDX - STT

2 stops17h 49mMultiple Airlines

Mon 9/112:18 pmSTT - PDX

3 stops33h 39mMultiple Airlines

Deal found 8/13

$752

Fri 8/2911:12 pmPDX - STT

1 stop11h 28mAmerican Airlines

Tue 9/21:50 pmSTT - PDX

2 stops24h 02mAmerican Airlines

Deal found 8/14

$781

Sat 8/3011:59 pmPDX - STT

1 stop9h 41mAmerican Airlines

Wed 9/31:40 pmSTT - PDX

2 stops24h 14mAmerican Airlines

Deal found 8/15

$770

Fri 9/2612:07 pmPDX - STT

2 stops18h 37mSpirit Airlines

Mon 9/2910:49 amSTT - PDX

2 stops27h 22mSpirit Airlines

Deal found 8/13

$498

Fri 9/269:56 pmPDX - STT

1 stop14h 22mAmerican Airlines

Mon 9/295:10 pmSTT - PDX

2 stops22h 40mAmerican Airlines

Deal found 8/13

$559

One-way flights from Portland to Saint Thomas Island
Search for one-way flight options from Portland to Saint Thomas Island. Find affordable one-way fares based on user searches. Data last updated August 16, 2025.

Mon 11/173:26 pmPDX - STT

3 stops41h 02mMultiple Airlines

Deal found 8/15

$246

Mon 11/179:45 pmPDX - STT

1 stop12h 37mDelta

Deal found 8/15

$278

Mon 9/110:05 pmPDX - STT

1 stop13h 05mDelta

Deal found 8/12

$594

Mon 9/111:35 amPDX - STT

2 stops22h 15mAmerican Airlines

Deal found 8/12

$608

Mon 9/11:45 pmPDX - STT

3 stops25h 15mMultiple Airlines

Deal found 8/12

$1,448

Cheapflights Fare Finder

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

Mon 11/3

12:37 pm-10:51 am

2 stops18h 14m

Saint Thomas Island Cyril E King

Mon 11/10

1:33 pm-10:49 am

2 stops25h 16m

$417

PortlandSaint Thomas Island

PDX - STT

PDXSTT

Portland

Fri 9/26

12:07 pm-9:44 am

2 stops18h 37m

Saint Thomas Island Cyril E King

Mon 9/29

10:49 am-11:11 am

2 stops27h 22m

$498

PortlandSaint Thomas Island

PDX - STT

PDXSTT

Portland

Sat 10/4

8:18 pm-9:56 am

3 stops34h 38m

Saint Thomas Island Cyril E King

Fri 10/10

11:01 am-7:36 pm

3 stops35h 35m

$534

PortlandSaint Thomas Island

PDX - STT

PDXSTT

Portland

Fri 10/3

12:07 pm-12:59 pm

2 stops45h 52m

Saint Thomas Island Cyril E King

Tue 10/7

11:01 am-7:36 pm

2 stops35h 35m

$543

PortlandSaint Thomas Island

PDX - STT

PDXSTT

Portland

Wed 8/27

7:52 pm-1:48 pm

2 stops38h 56m

Saint Thomas Island Cyril E King

Mon 9/8

10:49 am-11:11 am

2 stops27h 22m

$544

PortlandSaint Thomas Island

PDX - STT

PDXSTT

Portland

Tue 1/20

7:30 pm-4:18 pm

2 stops16h 48m

Saint Thomas Island Cyril E King

Mon 1/26

1:05 pm-10:35 pm

2 stops13h 30m

$559

PortlandSaint Thomas Island

PDX - STT

PDXSTT

Portland

Mon 1/12

3:36 pm-12:10 pm

2 stops16h 34m

Saint Thomas Island Cyril E King

Fri 1/23

6:35 pm-12:20 pm

2 stops21h 45m

$559

PortlandSaint Thomas Island

PDX - STT

PDXSTT

Portland

Tue 1/20

5:45 pm-1:45 pm

2 stops16h 00m

Saint Thomas Island Cyril E King

Tue 1/27

4:00 pm-10:39 pm

1 stop10h 39m

$559

PortlandSaint Thomas Island

PDX - STT

PDXSTT

Portland

Mon 11/17

3:26 pm-12:28 pm

3 stops41h 02m

$246

PortlandSaint Thomas Island

PDX - STT

PDXSTT

Portland

Mon 11/17

9:45 pm-2:22 pm

1 stop12h 37m

$278

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/15

Showing 1-10 of 13 results

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?

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 $648). 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?

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.

How much does it cost to fly round-trip from Portland to Saint Thomas Island?

Reviews of airlines servicing Saint Thomas Island

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

7,985 reviews

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

7,985 reviews

Delta

8.0

Very good

7,985 reviews

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

8,916 reviews

Delta

8.0

Very good

7,985 reviews

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

7,985 reviews

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

8,042 reviews

Delta

8.0

Very good

7,985 reviews

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

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 $281 and $437, respectively. Spirit Airlines is priced at 69% 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 $648). 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

St. John

Browse thousands of different options on Cheapflights for your next trip

Top 4 airlines flying from Portland to Saint Thomas Island

Airline	Cheapest	Average	Flexibility	On-time
Spirit Airlines	Cheapest$213	Average$325	FlexibilityNo cancel fee	On-time65%
United Airlines	Cheapest$281	Average$731	FlexibilityNo cancel fee	On-time69%
Delta	Cheapest$437	Average$735	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$437	Average$697	FlexibilityNo cancel fee	On-time71%

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$246+ 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 11/17. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Portland to Saint Thomas Island with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Portland to Saint Thomas Island Cyril E King are usually found in January 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

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Portland to Saint Thomas Island

Cheapest flights from Portland to Saint Thomas IslandExplore 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 August 16, 2025.

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 August 16, 2025.

Cheapflights Fare Finder

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

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.

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 August 8, 2025.

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

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 August 16, 2025.

How much does it cost to fly round-trip from Portland to Saint Thomas Island?

Reviews of airlines servicing Saint Thomas Island

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.

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?

Can I find deals for flights from Portland to Saint Thomas Island that include hotel bookings?

How can I find direct flights from Portland to Saint Thomas Island?

Can I find deals for business class flights from Portland to Saint Thomas Island?

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

Traveling to a place near Saint Thomas Island?

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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

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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 August 16, 2025.