$293 Cheap Flights from Harlingen (HRL) to St. Thomas (STT)

View $293 flight on Fri, Mar 6, 2026Opens in a new window

Popular airlines from Valley Intl. Airport (HRL) to Cyril E. King Airport (STT)

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Cheap Flights from Harlingen to St. Thomas (HRL-STT)

Prices were available within the past 7 days and start at $293 for one-way flights and $509 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Fri, Mar 6 - Wed, Mar 11
HRL
Harlingen
STT
St. Thomas
$509 Roundtrip, found 1 hour ago
$509
Roundtrip
found 1 hour ago
Select American Airlines flight, departing Fri, Mar 6 from Harlingen to St. Thomas, returning Wed, Mar 11, priced at $509 found 1 hour ago
United
Tue, Mar 10 - Mon, Mar 16
HRL
Harlingen
STT
St. Thomas
$584 Roundtrip, found 22 hours ago
$584
Roundtrip
found 22 hours ago
Select United flight, departing Tue, Mar 10 from Harlingen to St. Thomas, returning Mon, Mar 16, priced at $584 found 22 hours ago
United
Tue, Mar 3 - Mon, Mar 16
HRL
Harlingen
STT
St. Thomas
$589 Roundtrip, found 6 days ago
$589
Roundtrip
found 6 days ago
Select United flight, departing Tue, Mar 3 from Harlingen to St. Thomas, returning Mon, Mar 16, priced at $589 found 6 days ago
United
Sat, Apr 25 - Wed, May 6
HRL
Harlingen
STT
St. Thomas
$599 Roundtrip, found 6 days ago
$599
Roundtrip
found 6 days ago
Select United flight, departing Sat, Apr 25 from Harlingen to St. Thomas, returning Wed, May 6, priced at $599 found 6 days ago
United
Wed, Mar 4 - Mon, Mar 16
HRL
Harlingen
STT
St. Thomas
$610 Roundtrip, found 6 days ago
$610
Roundtrip
found 6 days ago
Select United flight, departing Wed, Mar 4 from Harlingen to St. Thomas, returning Mon, Mar 16, priced at $610 found 6 days ago
United
Mon, Apr 20 - Wed, May 6
HRL
Harlingen
STT
St. Thomas
$611 Roundtrip, found 6 days ago
$611
Roundtrip
found 6 days ago
Select United flight, departing Mon, Apr 20 from Harlingen to St. Thomas, returning Wed, May 6, priced at $611 found 6 days ago
United
Tue, Mar 10 - Tue, Mar 24
HRL
Harlingen
STT
St. Thomas
$616 Roundtrip, found 6 days ago
$616
Roundtrip
found 6 days ago
Select United flight, departing Tue, Mar 10 from Harlingen to St. Thomas, returning Tue, Mar 24, priced at $616 found 6 days ago
American Airlines
Fri, Mar 6 - Wed, Mar 11
HRL
Harlingen
STT
St. Thomas
$619 Roundtrip, found 1 hour ago
$619
Roundtrip
found 1 hour ago
Select American Airlines flight, departing Fri, Mar 6 from Harlingen to St. Thomas, returning Wed, Mar 11, priced at $619 found 1 hour ago
American Airlines
Mon, Mar 9 - Sat, Mar 14
HRL
Harlingen
STT
St. Thomas
$644 Roundtrip, found 22 hours ago
$644
Roundtrip
found 22 hours ago
Select American Airlines flight, departing Mon, Mar 9 from Harlingen to St. Thomas, returning Sat, Mar 14, priced at $644 found 22 hours ago
Southwest Airlines
Fri, Mar 6 - Wed, Mar 11
HRL
Harlingen
STT
St. Thomas
$1,099 Roundtrip, found 1 hour ago
$1,099
Roundtrip
found 1 hour ago
Select Southwest Airlines flight, departing Fri, Mar 6 from Harlingen to St. Thomas, returning Wed, Mar 11, priced at $1,099 found 1 hour ago

Frequently asked questions

How much does a flight from Valley Intl. Airport (HRL) to Cyril E. King Airport (STT) cost?
Secure a cheap one-way flight from $293 or cheap return flight from $509 from Valley Intl. Airport (HRL) to Cyril E. King Airport (STT) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Valley Intl. Airport (HRL) to Cyril E. King Airport (STT)?
Planning your getaway for March can help you save, as it's the cheapest month for flights between HRL and STT. You'll often find the lowest fares during the off-season.
What is the cheapest airline that flies from Valley Intl. Airport (HRL) to Cyril E. King Airport (STT)?
Expedia's filter tool lets you easily compare different airlines, travel time and fares all in one place. Customize the search to your preferences, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest HRL to STT flight.
How many flights per day from Valley Intl. Airport (HRL) to Cyril E. King Airport (STT)?
There aren't any daily direct flights available from Valley Intl. Airport (HRL) to Cyril E. King Airport (STT). But you can opt for flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be cruising above the clouds in no time at all.
What day of the week has the most flights from HRL to STT?
Generally you'll find the most flight options available on a Friday. Tuesdays are often the quietest.* However, this can vary depending on the time of year, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Valley Intl. Airport (HRL) to Cyril E. King Airport (STT)?
To avoid potential delays on the Valley Intl. Airport (HRL) to Cyril E. King Airport (STT) route, travel before 3 PM. Departures after this hour have a 22% higher chance of cancellation.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Valley Intl. Airport (HRL) to Cyril E. King Airport (STT) last-minute?
Waiting until just before your departure to book a ticket from HRL to STT often results in higher prices. While you may find some last-minute deals, there's no guarantee. Be flexible with your travel plans to maximize your chances of snagging a bargain.
Is it cheaper to book a HRL to STT flight and hotel package?
Compared with arranging hotels and flights separately, booking a HRL to STT flight and hotel package with Expedia could result in significant savings. What's more, managing everything in one place will take the hassle out of travel planning. Just secure your flights and select from our wide range of hotels, then tailor your trip with other add-ons like tours and car rentals.
Can I cancel or change the date of my flight from Valley Intl. Airport (HRL) to Cyril E. King Airport (STT)?
Typically, you can modify or cancel your HRL to STT flight. However, additional fees may apply, especially if you booked more than 24 hours ago. Check your itinerary for the airline's fees and rules on flight changes, or if you want more information, go to our Customer Service portal.

Travel information

Origin airport
Valley Intl.
Destination airport
Cyril E. King
Airlines serving
American Airlines, Southwest Airlines, United
Roundtrip price
$509
Distance
2153 mi

Book with confidence

Harlingen to St. Thomas Flights

The cheapest times to fly from Harlingen to St. Thomas

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Harlingen to St. Thomas are during the month of March. You can find some of the cheapest flights from Harlingen to St. Thomas with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Harlingen to St. Thomas

Sunday is one of the best days to book for cheap flights from Harlingen to St. Thomas: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Harlingen to St. Thomas

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Harlingen to St. Thomas in 2026. You can also book with separate airlines for your outbound and return journeys, from $293 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Harlingen to St. Thomas flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Harlingen to St. Thomas airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Harlingen to St. Thomas Flights

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*Available to One Key members.