$342 Cheap Flights from Billings (BIL) to St. Thomas (STT)

View $342 flight on Tue, Jan 6, 2026Opens in a new window

Popular airlines from Billings Logan Intl. Airport (BIL) to Cyril E. King Airport (STT)

Cheap Flights from Billings to St. Thomas (BIL-STT)

Prices were available within the past 7 days and start at $342 for one-way flights and $698 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Mon, Apr 20 - Thu, May 7
BIL
Billings
STT
St. Thomas
$698 Roundtrip, found 9 hours ago
$698
Roundtrip
found 9 hours ago
Select United flight, departing Mon, Apr 20 from Billings to St. Thomas, returning Thu, May 7, priced at $698 found 9 hours ago
United
Tue, Jan 20 - Fri, Feb 6
BIL
Billings
STT
St. Thomas
$698 Roundtrip, found 2 days ago
$698
Roundtrip
found 2 days ago
Select United flight, departing Tue, Jan 20 from Billings to St. Thomas, returning Fri, Feb 6, priced at $698 found 2 days ago
United
Tue, Jan 6 - Wed, Jan 21
BIL
Billings
STT
St. Thomas
$702 Roundtrip, found 2 days ago
$702
Roundtrip
found 2 days ago
Select United flight, departing Tue, Jan 6 from Billings to St. Thomas, returning Wed, Jan 21, priced at $702 found 2 days ago
United
Tue, Jan 20 - Thu, Feb 5
BIL
Billings
STT
St. Thomas
$704 Roundtrip, found 2 days ago
$704
Roundtrip
found 2 days ago
Select United flight, departing Tue, Jan 20 from Billings to St. Thomas, returning Thu, Feb 5, priced at $704 found 2 days ago
United
Tue, Jan 20 - Wed, Feb 4
BIL
Billings
STT
St. Thomas
$705 Roundtrip, found 2 days ago
$705
Roundtrip
found 2 days ago
Select United flight, departing Tue, Jan 20 from Billings to St. Thomas, returning Wed, Feb 4, priced at $705 found 2 days ago
United
Tue, Apr 21 - Thu, May 7
BIL
Billings
STT
St. Thomas
$705 Roundtrip, found 9 hours ago
$705
Roundtrip
found 9 hours ago
Select United flight, departing Tue, Apr 21 from Billings to St. Thomas, returning Thu, May 7, priced at $705 found 9 hours ago
United
Tue, Jan 6 - Fri, Jan 16
BIL
Billings
STT
St. Thomas
$708 Roundtrip, found 2 days ago
$708
Roundtrip
found 2 days ago
Select United flight, departing Tue, Jan 6 from Billings to St. Thomas, returning Fri, Jan 16, priced at $708 found 2 days ago
American Airlines
Sat, Aug 1 - Tue, Aug 11
BIL
Billings
STT
St. Thomas
$709 Roundtrip, found 4 hours ago
$709
Roundtrip
found 4 hours ago
Select American Airlines flight, departing Sat, Aug 1 from Billings to St. Thomas, returning Tue, Aug 11, priced at $709 found 4 hours ago
United
Sat, Jan 17 - Wed, Jan 21
BIL
Billings
STT
St. Thomas
$710 Roundtrip, found 2 days ago
$710
Roundtrip
found 2 days ago
Select United flight, departing Sat, Jan 17 from Billings to St. Thomas, returning Wed, Jan 21, priced at $710 found 2 days ago
United
Sun, Jan 11 - Wed, Jan 21
BIL
Billings
STT
St. Thomas
$712 Roundtrip, found 2 days ago
$712
Roundtrip
found 2 days ago
Select United flight, departing Sun, Jan 11 from Billings to St. Thomas, returning Wed, Jan 21, priced at $712 found 2 days ago

Alternative airports near St. Thomas

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Cyril E. King STT. Cheapest option available. Flights from $880
STT
Cyril E. King
Cheapest
Flights from $880
Flights from Billings (BIL) to St. Thomas (STT)
Origin airport
Logan Intl.
Destination airport
Cyril E. King
Airlines serving
American Airlines, United
Roundtrip price
$697
Distance
3120 mi

Billings to St. Thomas Flights

The cheapest times to fly from Billings 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 Billings to St. Thomas are during the month of April. You can find some of the cheapest flights from Billings to St. Thomas with Expedia's search tool and vast selection of airlines.

 

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

Sunday is one of the best days to book for cheap flights from Billings 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 Billings 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 Billings to St. Thomas in 2026. You can also book with separate airlines for your outbound and return journeys, from $342 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 Billings 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 Billings 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.

 

Frequently asked questions

How much does a flight from Logan Intl. Airport (BIL) to Cyril E. King Airport (STT) cost?
Grab a cheap one-way flight from $342 or cheap return flight from $698 from Logan Intl. Airport (BIL) 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 Logan Intl. Airport (BIL) to Cyril E. King Airport (STT)?
Traveling in April is a great way to save, as it's the cheapest month for flights between BIL and STT. You'll often find the lowest prices during off-peak months.
What is the cheapest airline that flies from Logan Intl. Airport (BIL) to Cyril E. King Airport (STT)?
Expedia's filter tool lets you easily compare different airlines, flight durations and fares all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest BIL to STT flight.
How many flights per day from Logan Intl. Airport (BIL) to Cyril E. King Airport (STT)?
You'll need to take a flight with a layover when traveling from Logan Intl. Airport (BIL) to Cyril E. King Airport (STT). There are no daily direct flights on this route. However, just filter your search to include one or two stops to discover the best option for your trip.
What day of the week has the most flights from BIL to STT?
Friday is usually the busiest day for flights, while Tuesday tends to be the quietest.* Keep in mind that flight schedules can vary based on a range of factors, such as the carrier and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Logan Intl. Airport (BIL) to Cyril E. King Airport (STT)?
To reach Cyril E. King Airport (STT) on schedule, pick a flight that leaves Logan Intl. Airport (BIL) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**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 Logan Intl. Airport (BIL) to Cyril E. King Airport (STT) last-minute?
Waiting until just before your departure to book a ticket from BIL to STT often results in higher prices. While you might find some last-minute discounts, there's no guarantee. Keep your travel schedule open for a better chance of landing a bargain.
Is it cheaper to book a BIL to STT flight and hotel package?
Compared with arranging flights and hotels separately, booking a BIL to STT flight and hotel package with Expedia could result in significant savings. What's more, having everything in one place takes the hassle out of planning your trip. Just secure your flights and select from our extensive range of stays, then personalize your trip with extras like tours, activities and car rentals.
Can I cancel or change the date of my flight from Logan Intl. Airport (BIL) to Cyril E. King Airport (STT)?
If you booked your BIL to STT flight within the last 24 hours, you may be able to modify or cancel it without fees. Depending on the airline and the ticket type you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal for more details.

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*Available to One Key members.