Flights London → San Juan
As of October 2026, economy flights from London to San Juan have a typical range EUR 8764–9684, median EUR 8832. Full range across all 99 offers: EUR 2768–16014. We found 51% of 99 offers from budget carriers (around EUR 8832) and 49% from full-service carriers (around EUR 8844).
Preview snapshot — prices change. Search for live results.
Data collected by LetsFG's multi-source price checks — every airline and the major booking sites checked for this route. How we collect data →
Best offers by airline: London → San Juan
Based on 99 offers · October 2026. Prices and availability change — run a live search to confirm.
Bag & seat fees: London → San Juan
Add-on pricing from the cheapest available offer per airline · October 2026 · EUR
| Airline | Carry-on | Checked bag | Seat selection |
|---|---|---|---|
| JetBlue | Included | Included | — |
| TAP AIR PORTUGAL | Included | Included | — |
| Avianca | — | Included | — |
| Iberia | Included | EUR 27 | — |
| British Airways | Included | EUR 58 | — |
| British Airways | — | EUR 2 | — |
| American Airlines | Included | Included | — |
| Iberia | — | EUR 2 | — |
| Virgin Atlantic | — | EUR 2 | — |
| KLM | Included | EUR 35 | — |
| Virgin Atlantic | Included | Included | — |
| Air France | Included | EUR 35 | — |
| Delta | Included | EUR 35 | — |
| Air Canada | Included | EUR 30 | — |
| Lufthansa | Included | EUR 35 | — |
| United | Included | EUR 35 | — |
Fees are estimates from the prices we checked and may not reflect your specific itinerary, booking class, or payment method. Run a live search for exact pricing.
How much do flights from London to San Juan cost?
Based on 99 offers · October 2026
London to San Juan flights ranged from EUR 2768 to EUR 16014 across 99 offers analyzed in October 2026. Two fare clusters detected: budget fares around 3430 and premium fares around 8729 The chart below shows how prices distributed across all 99 offers.
These 99 offers (October 2026) span multiple departure dates and booking windows — your travel dates may fall anywhere in this distribution. Only a live search shows where your specific trip lands.
50% of offers priced between EUR 8803 and EUR 8847
What hidden fees do London to San Juan flights charge?
Ancillary fees — bags, seat selection, and payment surcharges — can add 10–25% to the base fare on London to San Juan routes. The breakdown below is based on 99 offers analyzed in October 2026.
| Carrier | Avg fee (EUR) | % of base fare |
|---|---|---|
| B6 | 12 | 0% |
| TP | 12 | 0% |
| AV | 12 | 0% |
| IB | 38 | 0% |
| BA | 34 | 0% |
| British Airways | 2 | 0% |
| AA | 38 | 0% |
| Iberia | 2 | 0% |
| Virgin Atlantic | 2 | 0% |
| KL | 47 | 1% |
| VS | 20 | 0% |
| AF | 47 | 1% |
| DL | 45 | 1% |
| AC | 42 | 0% |
| LH | 45 | 0% |
| UA | 45 | 0% |
KLM: base ~EUR 8800 + fees EUR 47 = ~EUR 8847 total. Virgin Atlantic: base ~EUR 8842 + fees EUR 2 = ~EUR 8844 total.
KLM's EUR 47 ancillary fees narrow the gap with Virgin Atlantic's lower-fee model — the EUR 42 base difference shrinks to EUR 3 after fees. Always compare total cost, not just the advertised base fare.
Estimates based on median total minus average ancillary fee. Actual base fares vary by itinerary.KL charges 26.4x more in ancillary fees than Virgin Atlantic on this route. Compare total-cost options when booking.
Run your search to see itemized fees for your itineraryWhich airline is cheapest from London to San Juan?
16 airlines flew London to San Juan in this dataset. The route shows a clear split between low-cost and full-service carriers. Knowing the airline isn't enough — the typical fare range below shows how far prices swing on each one. Median and range include all fees we recorded.
| Airline | Offers | Typical range (EUR) | Median (EUR) | Fees (EUR) |
|---|---|---|---|---|
 B6 | 6 | — | 2768 | 12 (0%) |
 TAP Air Portugal | 1 | — | 2880 | 12 (0%) |
 Avianca | 1 | — | 4283 | 12 (0%) |
 Iberia | 19 | 8764–8824 | 8787 | 38 (0%) |
 British Airways | 1 | — | 8815 | 2 (0%) |
 British Airways | 16 | 8776–8828 | 8817 | 34 (0%) |
 Iberia | 6 | 8831–8832 | 8832 | 2 (0%) |
 Virgin Atlantic | 1 | — | 8844 | 2 (0%) |
 American Airlines | 9 | 8824–9069 | 8847 | 38 (0%) |
 KLM | 5 | 8847–9587 | 8847 | 47 (1%) |
 Virgin Atlantic | 7 | 8847–9587 | 8847 | 20 (0%) |
 Air France | 5 | — | 8847 | 47 (1%) |
 Delta Air Lines | 7 | — | 8847 | 45 (1%) |
 Air Canada | 1 | — | 9678 | 42 (0%) |
 Lufthansa | 6 | — | 9684 | 45 (0%) |
 United Airlines | 8 | 9722–11610 | 9722 | 45 (0%) |
Where do the best London → San Juan prices come from?
We checked direct airlines, travel agencies, and meta-search for this route. On this route the lowest median came from meta-search sources, but the cheapest channel shifts by route and date — which is exactly why a live search across all of them wins.
We compare every airline and the major booking sites but never disclose which — that's our edge. Prices are the ones we observed and aren't official data from any platform. Run a live search and we bring you the cheapest, wherever it is.
Key facts: London to San Juan flights
- Full-service carriers on London–San Juan cost 3.0x more than budget airlines (EUR 8305 vs EUR 2768 median; overall median EUR 8832).
- KL charges 26.4x more in ancillary fees than Virgin Atlantic — EUR 47 vs EUR 2 avg per booking.
- The same route priced EUR 3008 apart depending on where it was booked — the lowest median was EUR 5839. We search every airline and the major booking sites at once so you always see that lowest price.
Frequently asked questions
- How much does a flight from London to San Juan cost?
- Based on 99 offers analyzed, London to San Juan flights range from EUR 2768 to EUR 16014, with a median price of EUR 8832. Search for your specific dates →
- What hidden fees should I expect on London to San Juan flights?
- On average, ancillary fees (bags, seat selection) add EUR 35 to the base fare on London to San Juan flights. See itemized fees for your itinerary →
- Which airline is cheapest on London to San Juan including all fees?
- B6 has the lowest median fare on London to San Juan at EUR 2768 (median across 6 offers in our snapshot). Check which airline wins on your dates →
- Which booking site has the cheapest London–San Juan flights?
- It depends on your dates — no single site is always cheapest. We search every airline and the major booking sites at once (travel agencies and meta-search included) and surface whichever is lowest; the best median in this snapshot was EUR 5839. Run a live search and we'll find the cheapest for you →
- Why do prices vary so much on London to San Juan routes?
- London to San Juan has 16 airlines competing, creating a price range from EUR 2768 to EUR 16014 across 99 offers. There are two distinct fare clusters on this route: budget options and premium fares. Find where your trip lands in the distribution →
16 airlines, two price clusters — find which fits your budget
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