Cheap flights from Boston to Saint Thomas from $433 BOS → STT
Logan International Airport (BOS) → Cyril E. King Airport (STT)
The cheapest return found recently is $433 with American Airlines, 9 Jan 2027 – 13 Jan 2027, found 2 days ago.
- Cheapest return found recently
- $433, 9 Jan 2027 to 13 Jan 2027
- Usual return price
- $416 to $532
- Cheapest month to fly
- January 2027, return fares from $363 found in the last 7 days
Return
The cheapest return fare on each of 4 departure dates is usually $416 to $532.
Cheapest return found recently
$433
9 Jan 2027 – 13 Jan 2027 · American Airlines
Logan International Airport (BOS) → Cyril E. King Airport (STT)
Leaves 5:43 p.m. · Return leaves 3:30 p.m. · 26 h 3 min of travel, both ways together
out 1 stop, back 1 stop · via Miami International Airport (MIA), John F. Kennedy International Airport (JFK) · overnight connection · 11 h connection
found 2 days ago
Cheapest nonstop return
None seen yet.
Found recently, and the cheapest we hold
$433 9 Jan 2027 – 13 Jan 2027found 2 days agoSee prices for these dates
$363 2 Jan 2027 – 8 Jan 2027found 5 days agoSee prices for these dates
What have prices looked like?
Over 32 days, 24 Sept to 11 Nov, the cheapest return we saw each day was $319 to $585.
Those were the prices on those days, not today's.
Is this a good return price?
Compared with the cheapest return fare on each of 4 departure dates from 2 Jan 2027 to 10 Apr 2027, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.
Could nearby dates be cheaper?
We hold no other 4-night return fares leaving within 3 days of 9 Jan 2027 to compare.
Every date we hold
23 fares on 4 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 2 Jan 2027 – 8 Jan 2027 | $363 | American Airlines | Logan International Airport (BOS) → Cyril E. King Airport (STT) | out 1 stop, back 1 stop | found 5 days ago | See prices for these dates |
| 3 Jan 2027 – 9 Jan 2027 | $551 | American Airlines | Logan International Airport (BOS) → Cyril E. King Airport (STT) | out 1 stop, back 1 stop | found 5 days ago | See prices for these dates |
| 9 Jan 2027 – 13 Jan 2027 | $433 | American Airlines | Logan International Airport (BOS) → Cyril E. King Airport (STT) | out 1 stop, back 1 stop | found 2 days ago | See prices for these dates |
| 10 Apr 2027 – 18 Apr 2027 | $526 | American Airlines | Logan International Airport (BOS) → Cyril E. King Airport (STT) | out 1 stop, back 1 stop | found 2 days ago | See prices for these dates |
Which month looks cheapest?
January 2027 is the cheapest month — from $363.
Airlines on the cheapest dates: American Airlines.
Premium cabin fares from Boston to Saint Thomas
We hold no premium economy, business or first-class fares for this route: we collect them for the busiest routes, and this one is not among them yet.
Today's prices for 9 Jan 2027 – 13 Jan 2027 in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Boston to Saint Thomas?
Return
Not enough history yet: in 32 days of return prices, 24 Sept to 11 Nov, fewer than 3 booking ranges had prices on 7 days or more.
Could a nearby airport be cheaper?
A different airport at either end can change the fare — sometimes a lot.
Return
Boston → San Juan
125 km from Saint Thomas
$292
$141 less than flying to Saint Thomas
11 Dec – 16 Dec · BOS → SJU · out 1 stop, back 1 stop
found 2 days ago
Cheapest recent price on each route — round trip, per traveler in Economy. Distances are in a straight line.
One-way
Boston → San Juan
125 km from Saint Thomas
$98
10 Dec · BOS → SJU · stops unknown
found 2 days ago
Cheapest recent price on each route — one way, per traveler in Economy. Distances are in a straight line.
Live price for these dates
The cheapest return found recently is for 9 Jan 2027 – 13 Jan 2027. A live search on this page shows what those dates cost now, for one adult in economy.
Questions about this trip
How much is a return flight from Boston to Saint Thomas?
The cheapest return found recently is $433 with American Airlines, 9 Jan 2027 to 13 Jan 2027, found 2 days ago. The cheapest return we hold, of any age, is $363 with American Airlines, 2 Jan 2027 to 8 Jan 2027, found 5 days ago. The cheapest return fare on each of 4 departure dates is usually $416 to $532.
What is the cheapest month to fly from Boston to Saint Thomas?
January 2027 is the cheapest month for a return, from $363, 2 Jan 2027 to 8 Jan 2027, found 5 days ago.
Which airlines have the cheapest flights from Boston to Saint Thomas?
Between 2 Jan 2027 and 10 Apr 2027, American Airlines has the cheapest return on all 4 departure dates we hold.
Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work