$562 Cheap Flights from London (LHR) to San Diego (SAN)

View $562 flight on Tue, Nov 4, 2025Opens in a new window

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

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

Prices were available within the past 7 days and start at $562 for one-way flights and $535 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Lufthansa
Mon, Nov 17 - Mon, Dec 1
LHR
London
SAN
San Diego
$535 Roundtrip, found 19 hours ago
$535
Roundtrip
found 19 hours ago
Select Lufthansa flight, departing Mon, Nov 17 from London to San Diego, returning Mon, Dec 1, priced at $535 found 19 hours ago
Lufthansa
Mon, Nov 17 - Mon, Dec 1
LHR
London
SAN
San Diego
$536 Roundtrip, found 19 hours ago
$536
Roundtrip
found 19 hours ago
Select Lufthansa flight, departing Mon, Nov 17 from London to San Diego, returning Mon, Dec 1, priced at $536 found 19 hours ago
Air Canada
Mon, Nov 17 - Mon, Dec 1
LHR
London
SAN
San Diego
$545 Roundtrip, found 19 hours ago
$545
Roundtrip
found 19 hours ago
Select Air Canada flight, departing Mon, Nov 17 from London to San Diego, returning Mon, Dec 1, priced at $545 found 19 hours ago
British Airways
Mon, Nov 17 - Mon, Dec 1
LHR
London
SAN
San Diego
$562 Roundtrip, found 19 hours ago
$562
Roundtrip
found 19 hours ago
Select British Airways flight, departing Mon, Nov 17 from London to San Diego, returning Mon, Dec 1, priced at $562 found 19 hours ago
American Airlines
Mon, Nov 17 - Mon, Dec 1
LHR
London
SAN
San Diego
$562 Roundtrip, found 19 hours ago
$562
Roundtrip
found 19 hours ago
Select American Airlines flight, departing Mon, Nov 17 from London to San Diego, returning Mon, Dec 1, priced at $562 found 19 hours ago
Brussels Airlines
Mon, Nov 17 - Mon, Dec 1
LHR
London
SAN
San Diego
$569 Roundtrip, found 19 hours ago
$569
Roundtrip
found 19 hours ago
Select Brussels Airlines flight, departing Mon, Nov 17 from London to San Diego, returning Mon, Dec 1, priced at $569 found 19 hours ago
Austrian Airlines
Mon, Nov 17 - Mon, Dec 1
LHR
London
SAN
San Diego
$569 Roundtrip, found 19 hours ago
$569
Roundtrip
found 19 hours ago
Select Austrian Airlines flight, departing Mon, Nov 17 from London to San Diego, returning Mon, Dec 1, priced at $569 found 19 hours ago
Iberia
Mon, Nov 17 - Mon, Dec 1
LHR
London
SAN
San Diego
$572 Roundtrip, found 19 hours ago
$572
Roundtrip
found 19 hours ago
Select Iberia flight, departing Mon, Nov 17 from London to San Diego, returning Mon, Dec 1, priced at $572 found 19 hours ago
Virgin Atlantic
Mon, Nov 17 - Mon, Dec 1
LHR
London
SAN
San Diego
$572 Roundtrip, found 19 hours ago
$572
Roundtrip
found 19 hours ago
Select Virgin Atlantic flight, departing Mon, Nov 17 from London to San Diego, returning Mon, Dec 1, priced at $572 found 19 hours ago
Delta
Mon, Nov 17 - Mon, Dec 1
LHR
London
SAN
San Diego
$572 Roundtrip, found 19 hours ago
$572
Roundtrip
found 19 hours ago
Select Delta flight, departing Mon, Nov 17 from London to San Diego, returning Mon, Dec 1, priced at $572 found 19 hours ago

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

November is typically the cheapest month to fly

From $532 - $1,100 per traveler.

Graph displaying average flight prices per month

Alternative airports near San Diego

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

Select flight to San Diego Intl. SAN. Cheapest and Closest option available. Average driving time to city center is 5 minutes. Flights from $986
SAN
San Diego Intl.
CheapestClosest
Average driving time to city center5 min
Flights from $986
Flights from London (LHR) to San Diego (SAN)
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, Scandinavian Airlines, United, Virgin Atlantic, WestJet
Roundtrip price
$534
Distance
5472 mi
Average flight time
3 hours 12 mins

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 November. 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 $562 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.

 

Frequently asked questions

How much does a flight from Heathrow Airport (LHR) to San Diego Intl. Airport (SAN) cost?
You can find affordable return tickets from Heathrow Airport (LHR) to San Diego Intl. Airport (SAN) starting from $701. Snag a seat and set off on your next adventure. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a British Airways flight leaving LHR on July 10 2025 and touching down at SAN. The price was last updated on July 2 2025 and has not changed since.
What is the cheapest month to fly from LHR to SAN?
The cheapest flights from LHR to SAN are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
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 LHR to SAN?
Currently, the cheapest airline operating one-way flights from LHR to SAN is American Airlines. You can book a seat on this route from $1930. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from LHR on September 16 2025. Prices were last updated on July 2 2025 and have not changed since.
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.

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*Available to One Key members.