Cheap flights from London to San Juan
Find flight deals from London to San Juan
Discover tips and strategies to find the most affordable flight options for your journey from London (LON) to San Juan (PR1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 5 October 2026.
Popular in | December |
|---|---|
Cheapest in | February |
Average price | £620 |
Best time to book a flight from London to San Juan
Have a flexible travel schedule? Discover the best time to fly to San Juan from London with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from London to San Juan
How far ahead should I book a flight from London to San Juan?
Booking 39 days in advance of your planned departure date is, on average, the best time to get cheap flights from London to San Juan. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from London to San Juan?
Currently, February is the cheapest month in which you can book a flight from London to San Juan (average of £537). Flying from London to San Juan in December is currently the most expensive (average of £967). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Reviews of airlines servicing San Juan
Get insights into the airlines that provide service to San Juan. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Juan. Reviews last updated 5 October 2026.
Read through reviews of airlines operating flights from London to San Juan, such as TAP AIR PORTUGAL,JetBlue, andIberia. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
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Bhairav,Jun 2026
LHR - LIS
Boarding
Crew
Overall
Comfort
Entertainment
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Reviews
Bhairav,Jun 2026
LHR - LIS
Boarding
Crew
Overall
Comfort
Entertainment
Food
Reviews
Bhairav,Jun 2026
LHR - LIS
Boarding
Crew
Overall
Comfort
Entertainment
Food
Reviews
Bhairav,Jun 2026
LHR - LIS
Boarding
Crew
Overall
Comfort
Entertainment
Food
Reviews
Bhairav,Jun 2026
LHR - LIS
Boarding
Crew
Overall
Comfort
Entertainment
Food
Reviews
Bhairav,Jun 2026
LHR - LIS
Related info for your journey
Find useful and relevant information for your journey from London to San Juan. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for London to San Juan
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to San Juan by adding a car hire and/or hotel booking to your travel itinerary.
Search flights from London to San Juan by cabin class
Find flights from London to San Juan, based on your preferred cabin class, be it economy, premium economy, business, or first class.
London and San Juan flights
Browse other London and San Juan flight options. Last updated on 5 October 2026.
Other flights from London
Browse through other flights departing from London. Flights are based on user searches made on Cheapflights and were last updated on 5 October 2026.
Popular flight searches
Check out other popular destinations found by fellow travellers in 2026
Top 4 airlines flying from London to San Juan
Discover the top 4 airlines that operate flights from London to San Juan. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated 5 October 2026.
Fly with Cheapflights
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How does Cheapflights help users find flights from London to San Juan?
Cheapflights helps you search for flights from London to San Juan via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.
Why should you use Cheapflights to find cheap flight tickets from London to San Juan?
It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from London to San Juan.
Can Cheapflights find flights from London to San Juan with no change fees?
Yes, we can. To see specific flights from London to San Juan with no change fees, users can toggle flexible booking options after using the search form above to find flights.
Can Cheapflights notify me if prices for flights from London to San Juan become cheaper?
Not ready to book yet? You can track prices for flights from London to San Juan on Cheapflights with our Price Alert feature and get notified when better prices are available.