Cheap flights from San Juan to London from £251

Cheap flights from San Juan to London from £251

Trusted by millions

Kiwi.com Guarantee for stress-free travel

One search, all the best deals

Explore flight deals to London

1 stop
Thu, Aug 20
San Juan SJULondon LGW

£251
Search
1 stop
Tue, Aug 18
San Juan SJULondon LHR

£278
Search
1 stop
Wed, Aug 19
San Juan SJULondon LHR

£278
Search
1 stop
Mon, Aug 17
San Juan SJULondon LHR

£278
Search
1 stop
Sat, Aug 22
San Juan SJULondon LHR

£279
Search
1 stop
Fri, Aug 21
San Juan SJULondon LHR

£279
Search
1 stop
Thu, Aug 20 – Wed, Aug 26
San Juan SJULondon LGW

£589
Search
1 stop
Sun, Aug 16 – Thu, Aug 20
San Juan SJULondon LHR

£592
Search
1 stop
Thu, Aug 20 – Wed, Aug 26
San Juan SJULondon LGW

£598
Search
1 stop
Thu, Aug 20 – Tue, Aug 25
San Juan SJULondon LGW

£606
Search
1 stop
Sat, Aug 22 – Fri, Aug 28
San Juan SJULondon LHR

£629
Search
1 stop
Sat, Aug 22 – Fri, Aug 28
San Juan SJULondon LHR

£629
Search

How much do flights to London cost?

Getting from London airports to the city center

London is served by six airports, each offering a variety of airport transfers to city center destinations. Heathrow Airport (LHR) lies 24 km west of central London, Gatwick Airport (LGW) is 45 km to the south, Stansted Airport (STN) sits 64 km northeast, Luton Airport (LTN) is 46 km north, London City Airport (LCY) is just 11 km east, and Southend Airport (SEN) is 64 km to the east. Transport options include express trains, the Underground, DLR, coaches, taxis, ride-hailing services, and private transfers. Journey times and costs vary depending on the airport, time of day, and traffic conditions.

How to get from London Heathrow Airport (LHR) to London?

How to get from London Gatwick Airport (LGW) to London?

How to get from London Stansted Airport (STN) to London?

How to get from London Luton Airport (LTN) to London?

How to get from London City Airport (LCY) to London?

How to get from London Southend Airport (SEN) to London?

Notes:

  • Prices in GBP; table created in 2025 and subject to change.
  • Contactless and Oyster are valid on the Underground, DLR, Elizabeth line, and most National Rail services within London zones.
  • Black cabs are metered; ride-hailing prices vary with demand. Road traffic can significantly affect journey times (traffic dependent).
  • We recommend checking official transport websites for your travel planning.

Updated: December 2025

Key info about flying to London

Depart from
Luis Muñoz Marín International
Arrive to
Gatwick
Average flights per week
400
Flight distance
Worth visiting
Avebury - British Museum - Canterbury Cathedral - Isle of Wight - Natural History Museum - Portsea Island - Roman Baths, Bath - Stonehenge - St. Paul's Cathedral - Tate Modern - Tower of London

Check-in for a flight from San Juan to London

NameCarrier codeIATA CodePassport needed during booking
Iberia AirlinesIBEIBYes
JetBlue AirwaysJBUB6No
RyanairRYRFRNo
easyJetEZYU2Yes
KLM Royal Dutch AirlinesKLMKLNo

Weather in London

Average Weather

MonthAverage monthly max temperatureAverage monthly min temperature
January7°C2°C
February8°C3°C
March11°C4°C
April14°C5°C
May17°C8°C
June20°C11°C
July23°C14°C
August22°C14°C
September19°C12°C
October15°C9°C
November10°C6°C
December8°C4°C
Hottest Month
23°C
July
Coldest month
2°C
January
Sunny days
282
days per year
Snow days
2
days per year

14 day forecast

Saturday
8 Aug
29°C15°C
15 Aug
27°C18°C
Sunday
9 Aug
32°C19°C
16 Aug
30°C18°C
Monday
10 Aug
28°C18°C
17 Aug
33°C20°C
Tuesday
11 Aug
24°C17°C
18 Aug
29°C20°C
Wednesday
12 Aug
27°C17°C
19 Aug
24°C17°C
Thursday
13 Aug
36°C19°C
20 Aug
24°C15°C
Friday
14 Aug
30°C21°C
21 Aug
26°C16°C
Travelers usually depart from Luis Muñoz Marín International, or Fernando Luis Ribas Dominicci when they travel from San Juan to London. Book your trip to arrive at Gatwick, Heathrow, London Stansted, Luton, or London City. The most popular airlines for this route are Iberia Airlines, JetBlue Airways, Ryanair, easyJet, and KLM Royal Dutch Airlines. San Juan and London have 400 direct flights per week. When you arrive at London, consider visiting Avebury, British Museum, Canterbury Cathedral, Isle of Wight, Natural History Museum, Portsea Island, Roman Baths, Bath, Stonehenge, St. Paul's Cathedral, Tate Modern, and Tower of London.

Frequently asked questions

What are the most popular routes to and from San Juan?

What are the most popular routes to and from London?

Which airports are there in San Juan?

What airports are near San Juan?

What airports are near London?

Which airlines fly between San Juan and London?

When’s the best time to travel between San Juan and London?

What flights operate between San Juan and London?

How many airports are there near San Juan?

How many airports are there near London?

What time do nonstop (direct) flights between San Juan and London depart?

What time do nonstop (direct) flights between San Juan and London arrive?

What time do flights between San Juan and London depart?

What time do flights between San Juan and London arrive?

Explore alternative trips

Flights from San Juan

Flights to London

Popular routes

The nearest countries with flights to London

Here is a list of countries people are flying from

Other destination countries from San Juan

Here is a list of countries people are flying to

Download our app

Start your next adventure now. Download our app and explore cheap flights effortlessly!

Find the best connection from San Juan to London
Search flights