What’s the fastest stopover option from London Heathrow Airport to San Diego?

Flights via Amsterdam (AMS) have the shortest average one-way travel time for one-stop routes: 13h 31m.

What’s the top stopover airport for flights from London Heathrow Airport to San Diego?

Denver (DEN) – chosen by Cheapflights users on 30% of one-stop itineraries from London Heathrow Airport to San Diego on Cheapflights.

Which airport typically offers the quickest stopover for flights from London Heathrow Airport to San Diego?

Flights via Amsterdam (AMS) offer the fastest connection on this route, with an average stopover time of 1h 01m.

What’s the cheapest stopover airport for flights from London Heathrow Airport to San Diego?

Washington, D.C. (IAD) is the most affordable one-stop option, with an average return flight price of £396.

How long is the flight from London Heathrow Airport to San Diego?

United Airlines, Lufthansa, and Finnair can get you from London Heathrow Airport to San Diego in just under 16h. Your travel time can differ by up to 30m. London Heathrow Airport and San Diego are separated by a distance of 5469 mi. This flight may include one or multiple stops.

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

Flying on Air France is currently your cheapest option to San Diego, with prices starting at £367. Additional return tickets that might be worth considering are offered by Air Canada and Virgin Atlantic, with the lowest prices starting at £382 and £395, respectively. You may be able to fly from London Heathrow Airport to San Diego for 34% less than the average price by searching for these airlines.

What is the cheapest day to fly from London Heathrow Airport to San Diego?

Travellers seeking maximum savings on their London Heathrow Airport to San Diego flight should consider departing on Wednesday evenings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from London Heathrow Airport to San Diego

The most flights from LHR to SAN are scheduled on a Monday (9 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (3 on average).

In terms of precipitation, rainfall in San Diego ranges from 0.0 - 58.0 inches per month. February is typically the wettest month, when rainfall can reach 58.0 mm. July is typically the driest time to visit San Diego when rainfall is around 0.0 mm.

If weather is an important factor for your trip to San Diego, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 22.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 14.0 C).

What are the cheapest flights from London Heathrow Airport to San Diego?

Looking at all options, your cheapest flight can be booked for £466. While the most popular route (London Heathrow - San Diego) can be booked for £425 on average, our data indicates £2,053 when flying from London Heathrow Airport to San Diego.

What are the most reliable airlines from London Heathrow Airport to San Diego?

No one likes to see their flight delayed. When booking a flight from London Heathrow Airport to San Diego consider choosing American Airlines (73%), Alaska Airlines (73%) or British Airways (73%) as they are the most reliable in getting you off to your destination on time.

What are the most popular airlines that fly from London Heathrow Airport to San Diego?

American Airlines, Air Canada and Air France are the most popular airlines when flying from London Heathrow Airport to San Diego.

What is the cheapest day to fly round-trip from London Heathrow Airport to San Diego?

It’s generally more expensive to depart on a Friday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.

How far in advance should I book a flight from London Heathrow Airport to San Diego?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 43 days in advance, which can save you up to 27% on flights from London Heathrow Airport to San Diego compared to booking the week you need them. Waiting 43 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at £506. For sooner than that we have options available in the next 3 days from £561.

What is the cheapest month to fly from London Heathrow Airport to San Diego?

February can be a great time to fly to San Diego from London Heathrow Airport with a flight ticket averaging about £569. Cheapflights users have found deals in the month of February for as cheap as £383. The most expensive prices can be found in the month of July.

What airport do you fly into for flights to San Diego from London Heathrow?

San Diego (SAN) is the airport you will fly into if you book a flight from London Heathrow to San Diego. You should not have trouble finding flights to San Diego from London Heathrow; the airport handles an average of 7 inbound flights from London Heathrow per day. You should also have plenty of airline options to choose from since 11 airlines have flights to the San Diego airport from London Heathrow. It is only a 2.6 mi journey from San Diego (SAN) to San Diego’s city center.

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

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

How can I find direct flights from Heathrow to San Diego?

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

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

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

£404+ Cheap Flights from London Heathrow Airport to San Diego

Q: How much does it cost for a return flight from London Heathrow Airport to San Diego?

Airfare is typical for this route at the moment. London Heathrow Airport to San Diego flights typically cost between £449 and £547 in October. The cheapest return flight price found within the last 3 days was £465 on Air Canada (28 Oct-4 Nov).

Cheapflights Tip: The best prices from London Heathrow to San Diego are usually found in January or February, booked 85 days in advance, depart on a Saturday or Monday and return on a Monday

Cheap flight deals from Heathrow to San Diego

Round-trip from	£465
One-way from	£404
Popular in	July
Cheapest in	January
Average price	£488
Good round-trip deal	£543 or less
Good one-way deal	£672 or less

Air Canada
28/10-4/11
4 total stops
59h 24m total
London to San Diego

Search Deals

5/11
3 total stops
30h 40m total
London to San Diego

Search Deals

Highest demand for flights based on searches. 15% potential increase in price (£79 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (£15 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2025

Search Deals

Price to beat on a round-trip flight from London Heathrow to San Diego.

Search Deals

Price to beat on a one-way flight from London Heathrow to San Diego.

Search Deals

Find flight deals from Heathrow to San Diego

Cheapest flights from Heathrow to San Diego
Explore the most affordable flight options available from Heathrow to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 16 September 2025.

Mon 6/1008:15LHR - SAN

1 stop32h 41mJetBlue

Sat 11/1020:40SAN - LHR

1 stop16h 05mJetBlue

Deal found 16/9£462

Fri 19/908:25LHR - SAN

2 stops32h 36mIcelandair

Mon 29/920:55SAN - LHR

2 stops28h 35mIcelandair

Deal found 16/9£463

Mon 22/915:50LHR - SAN

2 stops29h 30mAir Canada

Mon 6/1008:10SAN - LHR

1 stop17h 25mAir Canada

Deal found 15/9£464

Wed 10/1206:35LHR - SAN

1 stop17h 10mUnited Airlines

Mon 12/118:00SAN - LHR

2 stops18h 35mUnited Airlines

Deal found 15/9£464

Sat 15/1112:20LHR - SAN

2 stops30h 19mIcelandair

Sat 22/1121:15SAN - LHR

2 stops25h 40mIcelandair

Deal found 15/9£465

Wed 24/906:30LHR - SAN

2 stops16h 55mDelta

Thu 2/1019:46SAN - LHR

1 stop13h 29mDelta

Deal found 15/9£466

Thu 2/1008:30LHR - SAN

2 stops19h 05mAir Canada

Sun 5/1008:10SAN - LHR

2 stops19h 40mAir Canada

Deal found 14/9£467

Wed 1/1014:05LHR - SAN

2 stops29h 26mMultiple Airlines

Wed 8/1011:08SAN - LHR

2 stops16h 42mMultiple Airlines

Deal found 14/9£467

Tue 9/1206:30LHR - SAN

2 stops25h 45mUnited Airlines

Mon 12/118:00SAN - LHR

2 stops19h 20mUnited Airlines

Deal found 15/9£469

Best flights from Heathrow to San Diego
Discover carefully curated flight deals from Heathrow to San Diego that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 16 September 2025.

Tue 21/1006:55LHR - SAN

1 stop16h 30mUnited Airlines

Fri 7/1112:07SAN - LHR

1 stop14h 08mUnited Airlines

Deal found 14/9£472

Mon 20/1007:25LHR - SAN

1 stop16h 00mLufthansa

Wed 12/1112:07SAN - LHR

1 stop14h 08mLufthansa

Deal found 13/9£472

Mon 3/1110:05LHR - SAN

1 stop16h 00mFinnair

Mon 17/1110:47SAN - LHR

1 stop13h 48mFinnair

Deal found 14/9£479

Mon 3/1109:00LHR - SAN

2 stops19h 48mSWISS

Mon 17/1116:01SAN - LHR

2 stops17h 49mSWISS

Deal found 13/9£516

Sat 1/1111:55LHR - SAN

1 stop15h 18mBritish Airways

Fri 7/1118:00SAN - LHR

Nonstop10h 35mBritish Airways

Deal found 15/9£521

Tue 14/1006:30LHR - SAN

2 stops17h 21mUnited Airlines

Tue 21/1016:05SAN - LHR

1 stop12h 15mUnited Airlines

Deal found 14/9£475

Fri 10/1009:30LHR - SAN

1 stop18h 05mUnited Airlines

Fri 12/1211:02SAN - LHR

1 stop18h 28mUnited Airlines

Deal found 14/9£497

Sat 4/1013:40LHR - SAN

1 stop16h 05mUnited Airlines

Fri 31/1013:47SAN - LHR

1 stop13h 28mUnited Airlines

Deal found 15/9£500

Sat 11/1011:25LHR - SAN

2 stops16h 21mUnited Airlines

Sat 18/1008:10SAN - LHR

1 stop14h 20mUnited Airlines

Deal found 14/9£500

Direct flights from Heathrow to San Diego
Explore direct flight options from Heathrow to San Diego based on user searches, and compare prices and availability for your desired travel dates. Data last updated 16 September 2025.

Mon 26/112:50LHR - SAN

Nonstop11h 20mBritish Airways

Sun 8/218:00SAN - LHR

Nonstop10h 35mBritish Airways

Deal found 14/9£469

Sat 22/1112:50LHR - SAN

Nonstop11h 20mBritish Airways

Tue 2/1218:00SAN - LHR

Nonstop10h 35mBritish Airways

Deal found 15/9£472

Mon 3/1112:50LHR - SAN

Nonstop11h 20mAmerican Airlines

Mon 17/1118:00SAN - LHR

Nonstop10h 35mAmerican Airlines

Deal found 15/9£475

Mon 6/1011:30LHR - SAN

Nonstop11h 20mBritish Airways

Tue 14/1016:40SAN - LHR

Nonstop10h 45mBritish Airways

Deal found 16/9£489

Fri 31/1012:50LHR - SAN

Nonstop11h 20mBritish Airways

Sat 15/1118:00SAN - LHR

Nonstop10h 35mBritish Airways

Deal found 14/9£500

Sat 14/212:50LHR - SAN

Nonstop11h 20mBritish Airways

Sat 28/218:00SAN - LHR

Nonstop10h 35mBritish Airways

Deal found 14/9£500

Sat 7/312:50LHR - SAN

Nonstop11h 20mBritish Airways

Sat 14/319:00SAN - LHR

Nonstop10h 35mBritish Airways

Deal found 15/9£502

Fri 20/212:50LHR - SAN

Nonstop11h 20mBritish Airways

Tue 24/218:00SAN - LHR

Nonstop10h 35mBritish Airways

Deal found 14/9£505

Thu 9/1011:30LHR - SAN

Nonstop11h 20mAmerican Airlines

Wed 15/1019:50SAN - LHR

Nonstop10h 30mAmerican Airlines

Deal found 16/9£506

Tue 21/1011:30LHR - SAN

Nonstop11h 20mBritish Airways

Fri 7/1118:00SAN - LHR

Nonstop10h 35mBritish Airways

Deal found 15/9£506

Sun 15/312:45LHR - SAN

Nonstop11h 20mBritish Airways

Sun 22/319:00SAN - LHR

Nonstop10h 35mBritish Airways

Deal found 14/9£515

Tue 28/1012:50LHR - SAN

Nonstop11h 20mBritish Airways

Fri 14/1118:00SAN - LHR

Nonstop10h 35mBritish Airways

Deal found 14/9£517

Last-minute flights from Heathrow to San Diego
Discover last-minute flight deals from Heathrow to San Diego. Data last updated 16 September 2025 and is based on user searches.

Mon 22/915:50LHR - SAN

2 stops29h 30mAir Canada

Mon 6/1008:10SAN - LHR

1 stop17h 25mAir Canada

Deal found 15/9£464

Mon 22/911:55LHR - SAN

1 stop29h 06mIcelandair

Sat 27/920:55SAN - LHR

1 stop25h 35mIcelandair

Deal found 14/9£469

Mon 22/914:10LHR - SAN

2 stops37h 17mFinnair

Sat 27/914:55SAN - LHR

1 stop35h 35mFinnair

Deal found 13/9£477

Mon 22/915:10LHR - SAN

1 stop15h 26mAmerican Airlines

Mon 6/1019:50SAN - LHR

Nonstop10h 30mAmerican Airlines

Deal found 15/9£481

Mon 22/908:40LHR - SAN

2 stops18h 26mMultiple Airlines

Mon 6/1019:48SAN - LHR

1 stop13h 27mMultiple Airlines

Deal found 15/9£486

Tue 23/911:15LHR - SAN

1 stop16h 09mBritish Airways

Tue 2/1218:00SAN - LHR

Nonstop10h 35mBritish Airways

Deal found 14/9£481

Wed 24/906:30LHR - SAN

2 stops16h 55mDelta

Thu 2/1019:46SAN - LHR

1 stop13h 29mDelta

Deal found 15/9£466

Wed 24/914:05LHR - SAN

2 stops31h 15mMultiple Airlines

Wed 1/1006:53SAN - LHR

2 stops15h 37mMultiple Airlines

Deal found 14/9£483

Wed 24/911:30LHR - SAN

Nonstop11h 20mBritish Airways

Wed 22/1019:50SAN - LHR

Nonstop10h 30mBritish Airways

Deal found 13/9£487

Wed 24/911:30LHR - SAN

Nonstop11h 20mBritish Airways

Thu 2/1016:42SAN - LHR

1 stop13h 43mBritish Airways

Deal found 13/9£489

One-way flights from Heathrow to San Diego
Search for one-way flight options from Heathrow to San Diego. Find affordable one-way fares based on user searches. Data last updated 16 September 2025.

Wed 5/1110:00LHR - SAN

3 stops30h 40mMultiple Airlines

Deal found 16/9£404

Fri 27/212:50LHR - SAN

Nonstop11h 20mBritish Airways

Deal found 15/9£408

Fri 31/1019:55LHR - SAN

3 stops52h 57mMultiple Airlines

Deal found 15/9£413

Thu 9/1007:25LHR - SAN

1 stop16h 00mLufthansa

Deal found 15/9£416

Fri 9/107:00LHR - SAN

2 stops22h 39mBritish Airways

Deal found 15/9£429

Mon 15/1220:05LHR - SAN

3 stops34h 22mMultiple Airlines

Deal found 14/9£430

Sun 14/1216:15LHR - SAN

2 stops38h 45mFinnair

Deal found 14/9£432

Tue 7/1014:10LHR - SAN

2 stops39h 10mMultiple Airlines

Deal found 15/9£434

Fri 24/1007:05LHR - SAN

3 stops44h 23mMultiple Airlines

Deal found 15/9£435

Sun 19/1022:00LHR - SAN

3 stops53h 33mMultiple Airlines

Deal found 15/9£436

Mon 29/911:25LHR - SAN

1 stop13h 53mLufthansa

Deal found 14/9£438

Cheapflights Fare Finder

Use the filters below to find and compare flights from London Heathrow Airport to San Diego that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Tue 21/10

06:55-15:25

1 stop16h 30m

San Diego

Fri 7/11

12:07-10:15

1 stop14h 08m

£472

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Mon 20/10

07:25-15:25

1 stop16h 00m

San Diego

Wed 12/11

12:07-10:15

1 stop14h 08m

£472

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Tue 14/10

06:30-15:51

2 stops17h 21m

San Diego

Tue 21/10

16:05-12:20

1 stop12h 15m

£475

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Mon 3/11

10:05-18:05

1 stop16h 00m

San Diego

Mon 17/11

10:47-08:35

1 stop13h 48m

£479

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Fri 10/10

09:30-19:35

1 stop18h 05m

San Diego

Fri 12/12

11:02-13:30

1 stop18h 28m

£497

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Sat 4/10

13:40-21:45

1 stop16h 05m

San Diego

Fri 31/10

13:47-10:15

1 stop13h 28m

£500

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Sat 11/10

11:25-19:46

2 stops16h 21m

San Diego

Sat 18/10

08:10-06:30

1 stop14h 20m

£500

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Mon 3/11

09:00-20:48

2 stops19h 48m

San Diego

Mon 17/11

16:01-17:50

2 stops17h 49m

£516

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Sat 1/11

11:55-20:13

1 stop15h 18m

San Diego

Fri 7/11

18:00-12:35

Nonstop10h 35m

£521

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Wed 5/11

10:00-08:40

3 stops30h 40m

£404

Flights are sorted by cheapest return flights first.

Deals found on 16/9

Showing 1-10 of 21 results

Best time to book a flight from Heathrow to San Diego

Have a flexible travel schedule? Discover the best time to fly to San Diego from Heathrow with our price prediction graph.

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

Prices

Airlines

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

The best time to book flights from London Heathrow Airport to San Diego is 85 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to San Diego (average of £585). Flying from London Heathrow Airport to San Diego in July is currently the most expensive (average of £920). 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.

What is the cheapest time of day to fly from LHR to SAN?

When flying from London Heathrow Airport to San Diego, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 15% versus a flight in the afternoon.

How much does it cost for a return flight from London Heathrow Airport to San Diego?

Reviews of airlines servicing San Diego

Read reviews from past customers who have flown with United Airlines, Virgin Atlantic, andIberia from London Heathrow Airport to San Diego. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.4

Good

8,929 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Sept 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

United Airlines

7.4

Good

8,929 reviews

United Airlines

7.4

Good

8,929 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Sept 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

Virgin Atlantic

7.4

Good

664 reviews

United Airlines

7.4

Good

8,929 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Sept 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

Iberia

7.0

Good

2,924 reviews

United Airlines

7.4

Good

8,929 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Sept 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

Lufthansa

6.8

Okay

7,407 reviews

United Airlines

7.4

Good

8,929 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Sept 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

British Airways

6.7

Okay

7,361 reviews

United Airlines

7.4

Good

8,929 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Sept 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

Related info for your journey

What airport do you fly into for flights to San Diego from London Heathrow?
San Diego (SAN) is the airport you will fly into if you book a flight from London Heathrow to San Diego. You should not have trouble finding flights to San Diego from London Heathrow; the airport handles an average of 7 inbound flights from London Heathrow per day. You should also have plenty of airline options to choose from since 11 airlines have flights to the San Diego airport from London Heathrow. It is only a 2.6 mi journey from San Diego (SAN) to San Diego’s city center.
How long is the flight from London Heathrow Airport to San Diego?
United Airlines, Lufthansa, and Finnair can get you from London Heathrow Airport to San Diego in just under 16h. Your travel time can differ by up to 30m. London Heathrow Airport and San Diego are separated by a distance of 5469 mi. This flight may include one or multiple stops.
What are the cheapest airlines flying from London Heathrow Airport to San Diego round-trip?
Flying on Air France is currently your cheapest option to San Diego, with prices starting at £367. Additional return tickets that might be worth considering are offered by Air Canada and Virgin Atlantic, with the lowest prices starting at £382 and £395, respectively. You may be able to fly from London Heathrow Airport to San Diego for 34% less than the average price by searching for these airlines.
What are the most reliable airlines from London Heathrow Airport to San Diego?
No one likes to see their flight delayed. When booking a flight from London Heathrow Airport to San Diego consider choosing American Airlines (73%), Alaska Airlines (73%) or British Airways (73%) as they are the most reliable in getting you off to your destination on time.
What are the cheapest flights from London Heathrow Airport to San Diego?
Looking at all options, your cheapest flight can be booked for £466. While the most popular route (London Heathrow - San Diego) can be booked for £425 on average, our data indicates £2,053 when flying from London Heathrow Airport to San Diego.
Can I find deals for flights from Heathrow to San Diego that include hotel bookings?
Yes. In addition to deals on Heathrow to San Diego flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Heathrow to San Diego?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to San Diego.
Can I find deals for business class flights from Heathrow to San Diego?
Yes. Cheapflights offers flight deals from Heathrow to San Diego 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 London Heathrow Airport to San Diego?
Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to San Diego (average of £585). Flying from London Heathrow Airport to San Diego in July is currently the most expensive (average of £920). 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

Coronado

El Cajon

Browse thousands of different options on Cheapflights for your next trip

Top 10 airlines flying from Heathrow to San Diego

Airline	Cheapest	Average	Flexibility	On-time
Air France	Cheapest£367	Average£420	FlexibilityNo cancel fee	On-time77%	Search Air France flights
Air Canada	Cheapest£382	Average£484	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
Virgin Atlantic	Cheapest£395	Average£512	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
British Airways	Cheapest£398	Average£550	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Lufthansa	Cheapest£410	Average£489	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
Finnair	Cheapest£414	Average£555	FlexibilityNo cancel fee	On-time76%	Search Finnair flights
United Airlines	Cheapest£417	Average£557	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
KLM	Cheapest£420	Average£551	FlexibilityNo cancel fee	On-time75%	Search KLM flights
American Airlines	Cheapest£434	Average£644	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights
Iberia	Cheapest£473	Average£603	FlexibilityNo cancel fee	On-time77%	Search Iberia flights

Fly with Cheapflights

How does Cheapflights help users find flights from Heathrow to San Diego?

When you search for this flight from Heathrow to San Diego, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Heathrow to San Diego?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Heathrow to San Diego.

Can Cheapflights find flights from Heathrow to San Diego with no change fees?

Need flexible booking options for your flight to San Diego from Heathrow? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Heathrow to San Diego become cheaper?

Not ready to book yet? You can track prices for flights from Heathrow to San Diego on Cheapflights with our Price Alert feature and get notified when better prices are available.

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Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Cheap flights from London Heathrow Airport to San Diego from £404

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheapflights Tip: The best prices from London Heathrow to San Diego are usually found in January or February, booked 85 days in advance, depart on a Saturday or Monday and return on a Monday

Cheap flight deals from Heathrow to San Diego

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

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Find flight deals from Heathrow to San Diego

Cheapest flights from Heathrow to San DiegoExplore the most affordable flight options available from Heathrow to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 16 September 2025.

Explore the most affordable flight options available from Heathrow to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 16 September 2025.

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Best time to book a flight from Heathrow to San Diego

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

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What is the cheapest time of day to fly from LHR to SAN?

How much does it cost for a return flight from London Heathrow Airport to San Diego?

Weekly flight availability from London Heathrow Airport to San Diego

What’s the top stopover airport for flights from London Heathrow Airport to San Diego?

What’s the fastest stopover option from London Heathrow Airport to San Diego?

What’s the fastest stopover option from London Heathrow Airport to San Diego?

Which airport typically offers the quickest stopover for flights from London Heathrow Airport to San Diego?

Reviews of airlines servicing San Diego

Related info for your journey

Find useful and relevant information for your journey from Heathrow to San Diego. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly into for flights to San Diego from London Heathrow?

How long is the flight from London Heathrow Airport to San Diego?

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

What are the most reliable airlines from London Heathrow Airport to San Diego?

What are the cheapest flights from London Heathrow Airport to San Diego?

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

How can I find direct flights from Heathrow to San Diego?

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

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

Travelling to a place near San Diego?

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Fly from Heathrow to San Diego on these airlines

Choose from the following airlines for your flight from Heathrow to San Diego. Flights are based on user searches made on Cheapflights and were last updated on 16 September 2025.

Top 10 airlines flying from Heathrow to San Diego

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Cheapest flights from Heathrow to San Diego
Explore the most affordable flight options available from Heathrow to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 16 September 2025.