Cheap flights from London Stansted Airport to San Juan from £338
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 23/6. Fares are subject to change and may not be available on all flights or dates of travel.
Cheap flight deals from Stansted to San Juan
Discover tips and strategies to find the most affordable flight options for your journey from Stansted (STN) 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 18 June 2025.
Find flight deals from Stansted to San Juan
Cheapest flights from Stansted to San JuanExplore the most affordable flight options available from Stansted to San Juan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 June 2025.
Explore the most affordable flight options available from Stansted to San Juan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 June 2025.
Cheapflights Fare Finder
Customise your flight search to find flights from Stansted to San Juan that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 18 June 2025.
Use the filters below to find and compare flights from London Stansted Airport to San Juan that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
LondonSan Juan
STN - SJU
STNSJU
London Stansted
Wed 17/9
06:30-18:30
1 stop17h 00m
San Juan Luis Munoz Marin Intl
Mon 29/9
20:20-21:20
1 stop20h 00m
LondonSan Juan
STN - SJU
STNSJU
London Stansted
Mon 28/7
16:10-02:08
3 stops38h 58m
Best time to book a flight from Stansted to San Juan
Have a flexible travel schedule? Discover the best time to fly to San Juan from Stansted with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from London Stansted Airport to San Juan
Rainfall in San Juan by month
Plan your trip to San Juan by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in San Juan ranges from 55.0 - 156.0 inches per month. November is typically the wettest month, when rainfall can reach 156.0 mm. March is typically the driest time to visit San Juan when rainfall is around 55.0 mm.
Temperature in San Juan by month
Plan your trip to San Juan by taking into account the average temperature totals by month.
If weather is an important factor for your trip to San Juan, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 28.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 25.0 C).
Related info for your journey
Find useful and relevant information for your journey from Stansted 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 Stansted to San Juan
See prices for flight routes from nearby airports that may be better suited for you.
Fly with Cheapflights
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How does Cheapflights help users find flights from Stansted to San Juan?
Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Stansted to San Juan. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.
Why should you use Cheapflights to find cheap flight tickets from Stansted 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 Stansted to San Juan.
Can Cheapflights find flights from Stansted to San Juan with no change fees?
Users can book flights with no change fees policies with our dedicated filters. Book flights from Stansted to San Juan flexibly with Cheapflights today.
Can Cheapflights notify me if prices for flights from Stansted to San Juan become cheaper?
Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to San Juan from Stansted today and book when prices fit your budget.