Cheap flights from London to San Juan from £329

How far is London to San Juan by plane?

A flight from London to San Juan will travel around 4196.4 mi. Flights usually cover this in 13h 50m, depending on flying conditions and air traffic around both airports.

When did momondo last update prices for flights from London to San Juan?

Prices for flights from London to San Juan are refreshed on a daily basis.

How many operators does momondo search for flights from London to San Juan?

As of May 2026, there are 7 operators available to choose from for flights from London to San Juan.

How old do you have to be to fly from London to San Juan?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from London to San Juan.

What documentation or ID do you need to fly to San Juan?

The necessary travel and health documents for your San Juan trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.