This page does one job: keep an eye on return fares from London to San Juan. You get the cheapest price we have on record, the exact dates it was available on, and how that sits against what the route normally costs.
Prices are re-checked against Skyscanner automatically, and every one shows when it was last confirmed, so nothing here is older than it looks. Not flying from London? We track 13 other departure cities for San Juan, listed at the foot of this page.
London → San Juan
for 13 Nov – 23 Nov 2026
✓ live-checked 4 hours ago
Check live price on Skyscanner →Price history 9 checks recorded for this route
lowest seen £573 · typical £576 · highest £581 · now £581
The cheapest London to San Juan return flight on the radar right now is £581, flying with jetBlue via one or more connections. It covers departures in November 2026, and every dated link below opens that exact LHR–SJU search on Skyscanner. Across 9 recorded checks it has ranged between £573 and £581. Our sampling points to November 2026 as the cheapest month to fly London to San Juan.
London to San Juan flights: common questions
How much is a flight from London to San Juan?
The lowest return fare we currently track from London (LHR) to San Juan (SJU) is £581. The typical price on this route is £576, so anything near £581 is worth booking quickly. Over 9 recorded checks we have seen it as low as £573 and as high as £581.
Which airline flies from London to San Juan at this price?
This £581 fare is with jetBlue, with at least one connection. The live search lists every carrier serving the route, so you can compare schedules before booking.
Is there a direct flight from London to San Juan?
This £581 fare includes at least one connection. If you need a non-stop London to San Juan flight, open the live search and apply the direct filter there.
When is the cheapest time to fly from London to San Juan?
Our price sampling points to November 2026 as the cheapest departure month on this route. The dated links on this page cover November 2026.
Is the £581 London to San Juan fare still available?
We last confirmed this £581 fare against live Skyscanner availability 4 hours ago. Deal fares move within days, so the Check live price button re-runs the exact search and shows today's number rather than a cached one.
How do I book this London to San Juan deal?
Pick a date pair above or press Check live price. That opens the exact LHR–SJU search on Skyscanner, where you book directly with the airline or agent. TravelFree does not sell tickets, adds no booking fee and does not mark the price up.
Every London to San Juan price on this page comes from a real bookable quote and is re-checked automatically. TravelFree takes no commission from you and never marks a fare up.
Prices like this tend to vanish fast. If it has gone when you look, try the days either side of the dates above, since London to San Juan is often still worth booking within a day or two of the fare we found.