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Heathrow

Cheap flights from San Juan to Heathrow (LHR)

SJU — LHR
Oct 24 — Oct 311
Sat 10/24
Sat 10/31
1 adult, Economy
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Find flight deals from San Juan to Heathrow

Popular in

June

Cheapest in

April

Average price

$927
Highest demand for flights based on searches. 11% potential increase in price ($124 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($20 potential savings vs. average RT price).
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Average for round-trip flights in September 2026
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Best time to book a flight from San Juan to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from San Juan with our price prediction graph.
Estimated round-trip price

Cheapflights Insights

Everything you need to know about your flight from San Juan to London Heathrow Airport

How far ahead should I book a flight from San Juan to London Heathrow Airport?

To ensure you get the cheapest price possible for a flight from San Juan to London Heathrow Airport, you should look to book at least 29 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from San Juan to London Heathrow Airport?

Currently, April is the cheapest month in which you can book a flight from San Juan to London Heathrow Airport (average of $721). Flying from San Juan to London Heathrow Airport in June is currently the most expensive (average of $1,131). 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 Heathrow

Peruse reviews from past customers who have flown with Delta,United Airlines, andJetBlue from San Juan to London Heathrow Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.8
Good
8,593 reviews

Food

7.2

Comfort

7.8

Overall

7.8

Entertainment

7.8

Crew

8.5

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
7.8
Good
8,593 reviews
Delta
7.8
Good
8,593 reviews

Food

7.2

Comfort

7.8

Overall

7.8

Entertainment

7.8

Crew

8.5

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
10,233 reviews
Delta
7.8
Good
8,593 reviews

Food

7.2

Comfort

7.8

Overall

7.8

Entertainment

7.8

Crew

8.5

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
JetBlue
7.1
Good
3,039 reviews
Delta
7.8
Good
8,593 reviews

Food

7.2

Comfort

7.8

Overall

7.8

Entertainment

7.8

Crew

8.5

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
American Airlines
7.0
Good
12,073 reviews
Delta
7.8
Good
8,593 reviews

Food

7.2

Comfort

7.8

Overall

7.8

Entertainment

7.8

Crew

8.5

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Iberia
7.0
Good
3,249 reviews
Delta
7.8
Good
8,593 reviews

Food

7.2

Comfort

7.8

Overall

7.8

Entertainment

7.8

Crew

8.5

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

  • What are the cheapest airlines flying from San Juan to London Heathrow Airport round-trip?

    According to our current data, United Airlines ($600), American Airlines ($670), and Delta ($676) offers the cheapest pricing from San Juan to London Heathrow Airport. You may be able to fly from San Juan to London Heathrow Airport for 34% less than the average price by searching for these airlines.

  • Can I find deals for flights from San Juan to Heathrow that include hotel bookings?

    Yes. In addition to deals on San Juan to Heathrow flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Juan to Heathrow?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Juan to Heathrow.

  • Can I find deals for business class flights from San Juan to Heathrow?

    Yes. Cheapflights offers flight deals from San Juan to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from San Juan to London Heathrow Airport?

    Currently, April is the cheapest month in which you can book a flight from San Juan to London Heathrow Airport (average of $721). Flying from San Juan to London Heathrow Airport in June is currently the most expensive (average of $1,131). 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.

See more FAQs

Traveling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Ilford
Dorking
Gatwick
Hounslow
Harrow
Wembley
Southend-on-Sea
Basingstoke
Watford
Northampton
Dartford
Winchester
Croydon
Chipping Norton
Kingston upon Thames
Eastbourne
Slough
Stansted
Sutton
Luton

Browse thousands of different options on Cheapflights for your next trip

Top 5 airlines flying from San Juan to Heathrow

AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$600Average$962FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$670Average$1,050FlexibilityNo cancel feeOn-time71%
DeltaCheapest$676Average$881FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$745Average$1,001FlexibilityNo cancel feeOn-time62%
IberiaCheapest$767Average$1,015FlexibilityNo cancel feeOn-time77%

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