Cheap flights from San Diego to London Heathrow

Q: What are the cheapest airlines?

JetBlue. These airlines usually offer the cheapest flights from San Diego to London Heathrow.

Q: What airlines fly indirectly?

Virgin Atlantic, Lufthansa, Air Canada, JetBlue, Aer Lingus. These airlines fly from San Diego to London Heathrow, but you’ll have at least one layover.

Q: How long is the flight?

10 hrs 25 mins. This is the shortest flight time from San Diego to London Heathrow.

from as little as £498

9 nights in London, departing San Diego on 19 / Feb / 2025 with JetBlue (price found 32 hours ago)

Subject to availability, prices correct of the last 24 hours

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Cheap return flights from San Diego to London Heathrow

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The San Diego / London Heathrow route

All 8814 km of it

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London Heathrow flight facts

What you need to know

What are the cheapest airlines?

JetBlue

These airlines usually offer the cheapest flights from San Diego to London Heathrow.

What airlines fly indirectly?

Virgin Atlantic
Lufthansa
Air Canada
JetBlue
Aer Lingus

These airlines fly from San Diego to London Heathrow, but you’ll have at least one layover.

How long is the flight?

10 hrs 25 mins

This is the shortest flight time from San Diego to London Heathrow.

Alternative flights from the UK to London Heathrow

Check out prices for other routes

San Diego to London City Airport

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San Diego to London Gatwick

from £1,123 pp

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Alternative flights from San Diego

You might find cheaper flights nearby

Athens from San Diego

from £1,517 pp

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19 / Feb / 2025 is currently the lowest priced day of the year to fly the San Diego/London Heathrow route. There are around 33 flights on any given week from the UK to London Heathrow and the cheapest month to fly right now is February.

Not suitable? Try running another search or viewing all cheap flight deals.

Min / Max Temperature (°C)

LOWEST

2 °C

AVG

11 °C

HIGHEST

24 °C

Rainfall (mm)

LOWEST

38.1 mm

AVG

52.5 mm

HIGHEST

66 mm

Key facts about London Heathrow

Currency

British pound

Language

English

Timezone

0 hrs behind GMT

How to get cheap flights from San Diego to London Heathrow

Tips and advice from our flight experts

If you want a cheap flight from San Diego to London, you've got nine airlines to choose from. You can use the search box to filter your preferences, but we've found that the cheapest day to fly is 19 / Feb / 2025.

You can use the filters on your search to see more flights and find cheaper rates – London has more than one airport. So if you don't need to fly into London Heathrow, it's worth checking your other options. The 8814 km flight usually takes about 12 hrs 50 mins.

There are about 33 flights to or via London every week, so you have plenty of options. Keep your eye out for flights with Virgin Atlantic, Lufthansa and Air Canada – these are the most popular airlines for flying to .

During this peak season, hotel and holiday prices often increase too, so it's best to book early. Or you could keep your fingers crossed and hold out for a last-minute deal.