Cheap flights from San Juan to London from £386

Cheap flights from San Juan to London from £386

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1 stop
Sun, May 24
San Juan SJULondon LGW
£386
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2 stops
Tue, May 26
San Juan SJULondon LGW
£409
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2 stops
Tue, May 26
San Juan SJULondon LGW
£411
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1 stop
Mon, May 25
San Juan SJULondon LTN
£428
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1 stop
Mon, May 25
San Juan SJULondon STN
£428
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1 stop
Mon, May 25
San Juan SJULondon STN
£443
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2 stops
Tue, May 26 – Fri, May 29
San Juan SJULondon LGW
£820
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1 stop
Mon, May 25 – Thu, May 28
San Juan SJULondon STN
£824
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1 stop
Mon, May 25 – Fri, May 29
San Juan SJULondon STN
£837
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1 stop
Mon, May 25 – Thu, May 28
San Juan SJULondon STN
£840
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1 stop
Mon, May 25 – Thu, May 28
San Juan SJULondon LTN
£841
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1 stop
Mon, May 25 – Fri, May 29
San Juan SJULondon LTN
£855
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How much do flights to London cost?

Cheapest one-way trip

£386

Cheapest round-trip

£820

Includes rare itinerary

Travel hack

Most popular airline

JetBlue Airways

Getting from London airports to the city center

Fastest options: Heathrow Express (LHR), Gatwick Express (LGW), Stansted Express (STN). Best value: Underground, DLR, Elizabeth line and commuter trains.

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.

From London Heathrow Airport (LHR)

Transport Option

Typical time

Typical cost

Frequency

Best for

15 min

£15-£25 (advance vs on-the-day fares)

every 15 min

fastest to Paddington

28-38 min

£12-£13 (Oyster/contactless fare)

every 5–10 min

central London with stops

35-75 min

£60-£100 (metered; varies by traffic)

on-demand 24/7 (traffic dependent)

door-to-door with luggage

From London Gatwick Airport (LGW)

Transport Option

Typical time

Typical cost

Frequency

Best for

30 min

£18-£23 (advance vs on-the-day fares)

every 15 min

fastest to Victoria

From London Stansted Airport (STN)

Transport Option

Typical time

Typical cost

Frequency

Best for

45-50 min

£20-£26 (advance vs on-the-day fares)

every 15–30 min

fastest to the City

From London Luton Airport (LTN)

Transport Option

Typical time

Typical cost

Frequency

Best for

35-55 min

£12-£20 (includes DART transfer)

every 10–20 min

direct to St Pancras

From London City Airport (LCY)

Transport Option

Typical time

Typical cost

Frequency

Best for

15-25 min

£3-£5 (Oyster/contactless fare)

every 4–10 min

Canary Wharf and City

From London Southend Airport (SEN)

Transport Option

Typical time

Typical cost

Frequency

Best for

50-60 min

£18-£25 (advance vs on-the-day fares)

every 20–30 min

direct to Liverpool Street

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
JetBlue AirwaysJBUB6No
RyanairRYRFRNo
Frontier AirlinesFFTF9No
Iberia AirlinesIBEIBYes
Air FranceAFRAFNo

Online check-in is not available for these airlines.

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
July22°C14°C
August22°C14°C
September19°C12°C
October15°C9°C
November10°C6°C
December8°C4°C
Hottest Month
22°C
July
Coldest month
2°C
January
Sunny days
281
days per year
Snow days
2
days per year

14 day forecast

Saturday
9 May
19°C9°C
16 May
82%
16°C10°C
Sunday
10 May
14°C7°C
17 May
17°C7°C
Monday
11 May
87%
12°C4°C
18 May
82%
12°C8°C
Tuesday
12 May
83%
15°C5°C
19 May
85%
14°C6°C
Wednesday
13 May
70%
14°C7°C
20 May
18°C7°C
Thursday
14 May
88%
13°C5°C
21 May
19°C11°C
Friday
15 May
16°C5°C
22 May
17°C9°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, London Stansted, Heathrow, Luton, or London City. The most popular airlines for this route are JetBlue Airways, Ryanair, Frontier Airlines, Iberia Airlines, and Air France. 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?
Travelers frequently search for route combinations, such as San Juan and New York, Tortola, Orlando, Santo Domingo, Saint Thomas, Miami, Fort Lauderdale, Boston, Philadelphia, Tampa, Medellín, Saint Croix, Atlanta, Washington, D.C., Vieques, Culebra, Punta Cana, Chicago, Dallas, San José.
What are the most popular routes to and from London?
Travelers frequently search for route combinations, such as London and Istanbul, Tel Aviv, Tirana, Bucharest, Barcelona, Chișinău, Athens, Paris, Madrid, Prague, Edinburgh, Rome, Málaga, Jeddah, Sofia, Bangkok, Larnaca, Bacău, Warsaw, Budapest.
Which airports are there in San Juan?
San Juan is mainly served by Luis Muñoz Marín International. But there are other airports nearby, including Fernando Luis Ribas Dominicci.
What airports are near San Juan?
The main airport in San Juan is Luis Muñoz Marín International. It is also served by Aguadilla Rafael Hernandez, Mercedita, Eugenio María de Hostos.
What airports are near London?
The main airport in London is London Stansted. It is also served by Birmingham, Bristol, East Midlands, Bournemouth, Cardiff, Southampton, Exeter, Norwich, Humberside.
Which airlines fly between San Juan and London?
Currently, you can fly between San Juan and London with JetBlue Airways, Ryanair, Frontier Airlines, Iberia Airlines, Air France.
When’s the best time to travel between San Juan and London?
If you don’t have specific dates for your trip between San Juan and London, you can enter a date range into the departure and return fields. Most carriers on the Kiwi.com website allow you to search and book up to six months from the day of your search. Order the search results by the best, cheapest, or fastest route, or find the cheapest outbound and return combination in the pricing table.
What flights operate between San Juan and London?
Traveling between San Juan and London, you can choose between direct (nonstop) flights or flights with one or more stops. You can select the number of stops on your journey, including an overnight stopover, and the duration of the stopover. What’s more, you can also select where you want to have your stopover. Want to say "Hi" to a friend in another city en route to your destination? Or fancy a quick round of shopping? Go Multi-City or Nomad and add places to your search that you wish to visit.
How many airports are there near San Juan?
There are a number of airports in and around San Juan. The main one is Luis Muñoz Marín International and other nearby airports include Aguadilla Rafael Hernandez, Mercedita, Eugenio María de Hostos
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?

Planning a trip? Thanks to our Virtual Interlining algorithm, we offer billions of route combinations between any origin and destination in the world by plane. Find the cheapest routes and best deals, as well as the best dates to travel.

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