$454 Cheap Flights from London (LHR) to San Diego (SAN)

View $454 flight on Tue, Feb 3, 2026Opens in a new window

Popular airlines from Heathrow Airport (LHR) to San Diego Intl. Airport (SAN)

Cheap Flights from London to San Diego (LHR-SAN)

Prices were available within the past 7 days and start at $454 for one-way flights and $572 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Lufthansa
Wed, Sep 2 - Mon, Sep 14
LHR
London
SAN
San Diego
$572 Roundtrip, found 5 days ago
$572
Roundtrip
found 5 days ago
Select Lufthansa flight, departing Wed, Sep 2 from London to San Diego, returning Mon, Sep 14, priced at $572 found 5 days ago
Lufthansa
Wed, Sep 2 - Mon, Sep 14
LHR
London
SAN
San Diego
$597 Roundtrip, found 5 days ago
$597
Roundtrip
found 5 days ago
Select Lufthansa flight, departing Wed, Sep 2 from London to San Diego, returning Mon, Sep 14, priced at $597 found 5 days ago
Air Canada
Wed, Sep 2 - Mon, Sep 14
LHR
London
SAN
San Diego
$607 Roundtrip, found 5 days ago
$607
Roundtrip
found 5 days ago
Select Air Canada flight, departing Wed, Sep 2 from London to San Diego, returning Mon, Sep 14, priced at $607 found 5 days ago
Lufthansa
Wed, Sep 2 - Mon, Sep 14
LHR
London
SAN
San Diego
$611 Roundtrip, found 5 days ago
$611
Roundtrip
found 5 days ago
Select Lufthansa flight, departing Wed, Sep 2 from London to San Diego, returning Mon, Sep 14, priced at $611 found 5 days ago
Austrian Airlines
Wed, Sep 2 - Mon, Sep 14
LHR
London
SAN
San Diego
$615 Roundtrip, found 5 days ago
$615
Roundtrip
found 5 days ago
Select Austrian Airlines flight, departing Wed, Sep 2 from London to San Diego, returning Mon, Sep 14, priced at $615 found 5 days ago
Iberia
Wed, Sep 2 - Mon, Sep 14
LHR
London
SAN
San Diego
$624 Roundtrip, found 5 days ago
$624
Roundtrip
found 5 days ago
Select Iberia flight, departing Wed, Sep 2 from London to San Diego, returning Mon, Sep 14, priced at $624 found 5 days ago
Iberia
Wed, Sep 2 - Mon, Sep 14
LHR
London
SAN
San Diego
$628 Roundtrip, found 5 days ago
$628
Roundtrip
found 5 days ago
Select Iberia flight, departing Wed, Sep 2 from London to San Diego, returning Mon, Sep 14, priced at $628 found 5 days ago
Brussels Airlines
Wed, Sep 2 - Mon, Sep 14
LHR
London
SAN
San Diego
$654 Roundtrip, found 5 days ago
$654
Roundtrip
found 5 days ago
Select Brussels Airlines flight, departing Wed, Sep 2 from London to San Diego, returning Mon, Sep 14, priced at $654 found 5 days ago
Finnair
Wed, Sep 2 - Mon, Sep 14
LHR
London
SAN
San Diego
$658 Roundtrip, found 5 days ago
$658
Roundtrip
found 5 days ago
Select Finnair flight, departing Wed, Sep 2 from London to San Diego, returning Mon, Sep 14, priced at $658 found 5 days ago
British Airways
Wed, Sep 2 - Mon, Sep 14
LHR
London
SAN
San Diego
$663 Roundtrip, found 5 days ago
$663
Roundtrip
found 5 days ago
Select British Airways flight, departing Wed, Sep 2 from London to San Diego, returning Mon, Sep 14, priced at $663 found 5 days ago

Find the cheapest month to fly from London (LHR) to San Diego (SAN)

February is typically the cheapest month to fly

From $539 - $1,060 per traveler.

Alternative airports near San Diego

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to General Abelardo L. Rodriguez Intl. TIJ. Average driving time to city center is 26 minutes. Flights from $1,175
TIJ
General Abelardo L. Rodriguez Intl.
Average driving time to city center26 min
Flights from $1,175

Frequently asked questions

How much does a flight from Heathrow Airport (LHR) to San Diego Intl. Airport (SAN) cost?
Secure a cheap one-way flight from $454 or cheap return flight from $572 from Heathrow Airport (LHR) to San Diego Intl. Airport (SAN) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Heathrow Airport (LHR) to San Diego Intl. Airport (SAN)?
The cheapest month to fly from LHR to SAN is September, when there's less demand. Off-peak season is often when you'll find cheap fares for travel between these airports.
Which airlines fly direct from Heathrow Airport (LHR) to San Diego Intl. Airport (SAN)?
You can fly nonstop from Heathrow Airport (LHR) to San Diego Intl. Airport (SAN) on a British Airways flight.
What is the cheapest airline that flies from Heathrow Airport (LHR) to San Diego Intl. Airport (SAN)?
To find the cheapest airline flying from LHR to SAN, use Expedia's filter tool. Customize your search based on your travel style, such as preferred carriers and seat class. You can then sort your results by "Price (lowest to highest)" to discover the cheapest flight right away.
How many flights per day from Heathrow Airport (LHR) to San Diego Intl. Airport (SAN)?
On average, there's only 1 direct flight operating from Heathrow Airport (LHR) to San Diego Intl. Airport (SAN) each day. If this doesn't fit your travel plans, consider flights with layovers. Simply filter your search on Expedia to include one or two stops to find the next best option.
What are the most popular departure times for flights from Heathrow Airport (LHR) to San Diego Intl. Airport (SAN)?
More travelers fly between LHR and SAN at 12 PM than at any other time of day. Looking to skip the crowds? Travel outside of rush hours and there's a chance you'll save on your fare as well.
What day of the week has the most flights from LHR to SAN?
Thursday has the most flights from Heathrow Airport (LHR) to San Diego Intl. Airport (SAN). Consider jetting off on this day and you'll have a greater chance of finding a schedule that works for you.
What is the earliest flight from Heathrow Airport (LHR) to San Diego Intl. Airport (SAN)?
Heathrow Airport (LHR)'s earliest flight to San Diego Intl. Airport (SAN) departs at approximately 12:50PM UTC+0. With a travel duration of 11h 15m, you'll arrive at around 4:05PM UTC-8.
How long does it take to fly from Heathrow Airport (LHR) to San Diego Intl. Airport (SAN)?
Flights from LHR to SAN have an average travel time of 11 hours and 15 minutes. The total distance between the two is 5,500 mi.
What is the best time to fly from Heathrow Airport (LHR) to San Diego Intl. Airport (SAN)?
To avoid possible delays on the Heathrow Airport (LHR) to San Diego Intl. Airport (SAN) route, fly before 3 PM. Flights after this time have a 22% higher chance of cancellation.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for San Diego from Heathrow Airport (LHR)?
If you've booked a direct flight from Heathrow Airport (LHR) to San Diego, San Diego Intl. Airport (SAN) is the only airport you can touch down at.
Is it cheaper to buy a plane ticket from Heathrow Airport (LHR) to San Diego Intl. Airport (SAN) last-minute?
Waiting until just before your trip to book your flight from LHR to SAN often results in higher prices. While it's possible to find some last-minute offers, they aren't always guaranteed. Keep your travel schedule open for a better chance of landing a bargain.
Is it cheaper to book a LHR to SAN flight and hotel package?
You can save money by securing a LHR to SAN flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one place. Once you've selected your preferred accommodations and flights, you can add extras such as car rentals, tours and activities.
Can I cancel or change the date of my flight from Heathrow Airport (LHR) to San Diego Intl. Airport (SAN)?
Typically, you're able to reschedule or cancel your LHR to SAN flight. However, there may be additional charges, especially if you booked over 24 hours ago. Double-check your itinerary for the airline's fees and rules on flight changes, or if you need more details, go to our Customer Service portal.

Travel information

Origin airport
Heathrow
Destination airport
San Diego Intl.
Airlines serving
Aer Lingus, Air Canada, Air France, American Airlines, Austrian Airlines, British Airways, Brussels Airlines, Delta, Finnair, Iberia, Icelandair, JetBlue Airways, KLM, Lufthansa, United, Virgin Atlantic, WestJet
Roundtrip price
$572
Distance
5472 mi
Average flight time
12 hours 20 mins

Book with confidence

London to San Diego Flights

The cheapest times to fly from London to San Diego

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from London to San Diego are during the month of September. You can find some of the cheapest flights from London to San Diego with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from London to San Diego

Sunday is one of the best days to book for cheap flights from London to San Diego: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from London to San Diego

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from London to San Diego in 2025. You can also book with separate airlines for your outbound and return journeys, from $454 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap London to San Diego flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your London to San Diego airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

London to San Diego Flights

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*Available to One Key members.