Flights San Juan → London
As of October 2026, economy flights from San Juan to London have a typical range EUR 3481–9424, median EUR 4058. Full range across all 102 offers: EUR 2279–9661. We found 59% of 102 offers from budget carriers (around EUR 3927) and 41% from full-service carriers (around EUR 4223).
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: San Juan → London
Based on 102 offers · October 2026. Prices and availability change — run a live search to confirm.
Bag & seat fees: San Juan → London
Add-on pricing from the cheapest available offer per airline · October 2026 · EUR
| Airline | Carry-on | Checked bag | Seat selection |
|---|---|---|---|
| JetBlue | — | EUR 31 | — |
| Avianca | — | EUR 27 | — |
| Delta Air Lines | Included | EUR 31 | — |
| Virgin Atlantic | Included | Included | — |
| United Airlines | — | EUR 31 | — |
| KLM | — | EUR 31 | — |
| Air France | — | — | — |
| Lufthansa | — | — | — |
| American Airlines | Included | Included | — |
| British Airways | — | EUR 58 | — |
| Iberia | — | — | — |
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 San Juan to London cost?
Based on 102 offers · October 2026
San Juan to London flights ranged from EUR 2279 to EUR 9661 across 102 offers analyzed in October 2026. Two fare clusters detected: budget fares around 5601 and premium fares around 9292 The chart below shows how prices distributed across all 102 offers.
These 102 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 3482 and EUR 5846
What hidden fees do San Juan to London flights charge?
Ancillary fees — bags, seat selection, and payment surcharges — can add 10–25% to the base fare on San Juan to London routes. The breakdown below is based on 102 offers analyzed in October 2026.
| Carrier | Avg fee (EUR) | % of base fare |
|---|---|---|
| B6 | 40 | 1% |
| AV | 18 | 1% |
| DL | 19 | 0% |
| VS | 19 | 0% |
| UA | 30 | 1% |
| KL | 30 | 1% |
| AF | 12 | 0% |
| LH | 10 | 0% |
| AA | 10 | 0% |
| BA | 33 | 1% |
| IB | 12 | 0% |
B6: base ~EUR 2792 + fees EUR 40 = ~EUR 2832 total. American Airlines: base ~EUR 5824 + fees EUR 10 = ~EUR 5834 total.
B6's EUR 40 ancillary fees narrow the gap with American Airlines's lower-fee model — the EUR 3032 base difference shrinks to EUR 3002 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.Fee levels vary significantly across carriers on this route — some carriers charge 50%+ above the base fare in ancillary fees.
Run your search to see itemized fees for your itineraryWhich airline is cheapest from San Juan to London?
14 airlines flew San Juan to London 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.
Even on the cheapest airline (B6), fares ranged EUR 2542–3250 in this snapshot. Your exact price depends on your dates and how far ahead you book — run a live search to see your number →
| Airline | Offers | Typical range (EUR) | Median (EUR) | Fees (EUR) |
|---|---|---|---|---|
 B6 | 6 | 2542–3250 | 2832 | 40 (1%) |
 Avianca | 3 | 2994–3008 | 2994 | 18 (1%) |
 United Airlines | 14 | 3482–6981 | 3482 | 30 (1%) |
 Delta Air Lines | 19 | 3481–5851 | 3483 | 19 (1%) |
 Lufthansa | 2 | — | 3486 | 10 (0%) |
 British Airways | 6 | 3749–9433 | 3749 | 33 (1%) |
 KLM | 10 | 3482–5610 | 3927 | 30 (1%) |
 Air France | 2 | 3631–4814 | 4223 | 12 (0%) |
 Virgin Atlantic | 15 | 3481–5853 | 4960 | 19 (0%) |
 Delta | 3 | 4960–5672 | 4960 | n/a |
 Iberia | 9 | 5813–9478 | 5821 | n/a |
 American Airlines | 7 | 3606–9481 | 5834 | 10 (0%) |
 American | 1 | — | 9416 | n/a |
 Iberia | 5 | 7259–9467 | 9436 | 12 (0%) |
Where do the best San Juan → London 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: San Juan to London flights
- Full-service carriers on San Juan–London cost 1.8x more than budget airlines (EUR 5059 vs EUR 2832 median; overall median EUR 4058).
- B6 charges 4.2x more in ancillary fees than AA — EUR 40 vs EUR 10 avg per booking.
- The same route priced EUR 2353 apart depending on where it was booked — the lowest median was EUR 3481. 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 San Juan to London cost?
- Based on 102 offers analyzed, San Juan to London flights range from EUR 2279 to EUR 9661, with a median price of EUR 4058. Search for your specific dates →
- What hidden fees should I expect on San Juan to London flights?
- On average, ancillary fees (bags, seat selection) add EUR 23 to the base fare on San Juan to London flights. See itemized fees for your itinerary →
- Which airline is cheapest on San Juan to London including all fees?
- B6 has the lowest median fare on San Juan to London at EUR 2832 (median across 6 offers in our snapshot). Check which airline wins on your dates →
- Which booking site has the cheapest San Juan–London 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 3481. Run a live search and we'll find the cheapest for you →
- Why do prices vary so much on San Juan to London routes?
- San Juan to London has 14 airlines competing, creating a price range from EUR 2279 to EUR 9661 across 102 offers. There are two distinct fare clusters on this route: budget options and premium fares. Find where your trip lands in the distribution →
14 airlines, two price clusters — find which fits your budget
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