Cheapest€31.41
- Cape Air CA403906:4738m07:25Saint Croix STXSan Juan SJU
Door to door 3h 48mCO2 41.8 kgChanges 0Fixed, no changes
St Croix to San Juan flight
Flights from St Croix to San Juan start at €31.41 and take 3h 48m at their fastest.
Check dates and fares
Fares and seats move by the day. Price St Croix to San Juan on the date you actually want, rather than on the date this page was built.
The Flights from St Croix to San Juan starts at €31.41 and takes 3h 48m door to door, run by 2 operators over 170 km, with around 2 departures a day. Fares bottom out about 90 days before departure.
- 3h 48mDoor to door
- 38mMoving
- €31.41 to €46.75From
- 06:28 to 06:47First and last departure
- 2Per day
- 41.8 kgCO2
First and last are taken from the services we sell on 21 September 2026. The return direction keeps its own timetable and is not these times reversed.
€31.41 to €46.75 for one passenger across the 14 departure dates priced here. The low end is one day, not every day. Worked out from this corridor rather than held for anybody. The operator sets the price on the day.
Fares by date
What this journey usually costs, by departure date. It shows which days run dearer.
Typical fares
- about €46.75Fri18
- about €46.75Sat19
- about €43.21Sun20
- about €31.41Mon21
- about €35.54Tue22
- about €31.41Wed23
- about €36.13Thu24
- about €31.41Fri25
- about €36.13Sat26
- about €31.41Sun27
- about €31.41Mon28
- about €31.41Tue29
- about €31.41Wed30
- about €35.54Thu1
Based on what this route has cost recently. The operator sets the price on the day, and the live fare is confirmed when you book.
The cheapest and the fastest on 21 September 2026
Airlines
The flight gets you into San Juan. It does not get you a bed, and neither do we.
A room in San Juan for the night the flight gets in
Sort by distance from San Juan Railroad Terminal and you can see which places are ten minutes on foot and which are not.
Search San Juan on Booking.com
Partner links. We do not sell accommodation. We earn a commission when a booking completes, and it never changes what you pay.
When to book St Croix to San Juan
The same search run across the whole booking window, so the shape of the curve is visible rather than described.
- €31.4190 days
- €31.4160 days
- €31.4145 days
- €31.4130 days
- €31.4121 days
- €35.5414 days
- €36.137 days
- €43.213 days
- €46.751 days
- Cheapest lead time
- Fares bottom out around 90 days ahead, at €31.41.
- How much it moves
- The gap between the cheapest and dearest lead time is 49 percent. The dearest point is €46.75, 1 days out.
- What that means
- Today sits inside the cheap window, which closes about 90 days before departure. Waiting from here has usually cost money on this corridor rather than saved it.
Which departure day costs least
Median cheapest fare for each weekday, taken across the next three weeks of real prices.
- €31.41Sun
- €31.41Mon
- €31.41Tue
- €31.41Wed
- €35.54Thu
- €31.41Fri
- €36.13Sat
Where you leave from and where you arrive
Saint Croix
Air
- STX
San Juan
Air
- SJU
What the journey looks like
- How far it really runs
- The route covers 170 km against 165 km in a straight line, a detour of 3 percent. Track and road geometry account for the difference.
- First and last departure
- The first service of the day leaves St Croix at 06:28 and the last at 06:47, across 2 departures The return direction keeps its own timetable, so the times back are not these times reversed.
Questions about St Croix to San Juan
The questions people actually ask about this journey, answered from the same prices and times the page above is built on rather than written once and left to go stale.
How long does the Flight from St Croix to San Juan take?
The Flight from St Croix to San Juan takes 3h 48m door to door, of which 38m is spent moving. The route runs 170 km. The difference between the two times is reaching the terminal and leaving it at the far end, which every time on this page includes.
How much does the Flight from St Croix to San Juan cost?
The Flight from St Croix to San Juan starts at €31.41 for one passenger, as of 17 September 2026. A typical fare is €32.59. Both are the total including taxes, supplier fees and our service fee, so the price here is the price at checkout.
Who runs the Flight from St Croix to San Juan?
2 operators run the Flight from St Croix to San Juan: Cape Air, American Eagle Airlines. Between them they file around 2 departures a day. The operator table on this page compares them on fare, journey time, cruising speed, fare conditions and what is provided on board.
Which terminal does the Flight from St Croix to San Juan use?
The Flight from St Croix to San Juan leaves from Saint Croix STX and arrives at San Juan SJU. Allow about 3h 10m for reaching the departure terminal and leaving the arrival one. That time is already inside every door to door figure quoted on this page.
When should I book the Flight from St Croix to San Juan?
Fares for the Flight from St Croix to San Juan bottom out around 90 days ahead, at €31.41. The gap between the cheapest and dearest lead time across the window is 49 percent, measured on 17 September 2026. Booking inside the final week has consistently cost more.
How much CO2 does the Flight from St Croix to San Juan produce?
The Flight from St Croix to San Juan produces about 41.8 kg of CO2 per passenger over 170 km, which works out at roughly 246 grams per passenger kilometre. That figure is for the whole journey and for one traveller, not for the vehicle.
Where these numbers come from
Places, coordinates, operators, which operator serves which pair, and every distance on this page are real and come from open data. Where a corridor has a filed timetable the departure times are real too, and ferry fares are the prices the operators publish themselves.
Derived from service area No carrier record names this exact pair. The operators listed publish a service area covering both places at a distance their mode plausibly carries people, which is evidence that the corridor is served and not evidence of a specific service. Pages state which, because presenting the two as the same thing would be dishonest.
Where no operator publishes a fare for a corridor, the price here is our own estimate, worked out from the real distance and the real operator through a fare curve that follows lead time, day of the week and season. It tells you roughly what the journey costs. It is not a seat anyone has agreed to sell, and the payment step will not take it.
Defined in full at Door to door, Fares, The booking window, Carbon
- On this page
- Every figure above was computed for St Croix to San Juan on 17 September 2026: 170 km of route against 165 km in a straight line, 2 services a day, 2 operators a cheapest fare of €31.41, and 3h 48m door to door on the fastest mode. The return direction is computed separately and its numbers are not these numbers.
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The fare from SJU into San Juan is the one price on this journey we cannot show you, because it is not ours.
A car waiting when you land in San Juan
Settled in advance, so the ride into San Juan costs what it said it would rather than what the rank says.
Book a transfer from SJU with Daytrip
Partner links. We do not operate transfers. We earn a commission on a booking, and the fare is the same as going direct.