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Flights to San Diego

£268 Cheap flights to San Diego

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight to San Diego departing on 13/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from the United Kingdom to San Diego

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
12:05 - 20:49LHR-SAN
40h 44m2 stops
Multiple Airlines Logo
18:10 - 11:50SAN-LHR
33h 40m1 stop
£471Multiple Airlines
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So, 1 Feb - So, 15 Feb
United Airlines Logo
06:35 - 15:45LHR-SAN
17h 10m1 stop
United Airlines Logo
07:00 - 05:55SAN-LHR
14h 55m1 stop
£472United Airlines
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Di, 25 Nov - Do, 11 Dez
Multiple Airlines Logo
14:00 - 09:39LGW-SAN
27h 39m1 stop
Multiple Airlines Logo
10:35 - 10:00SAN-LGW
15h 25m1 stop
£476Multiple Airlines
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Do, 15 Jan - Do, 22 Jan
Lufthansa Logo
19:15 - 15:45LHR-SAN
28h 30m1 stop
Lufthansa Logo
17:35 - 15:50SAN-LHR
14h 15m1 stop
£478Lufthansa
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Mo, 24 Nov - Di, 9 Dez
Lufthansa Logo
07:40 - 15:45LHR-SAN
16h 05m1 stop
Lufthansa Logo
10:23 - 07:25SAN-LHR
13h 02m1 stop
£491Lufthansa
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Mi, 4 Mrz - Mi, 1 Apr
British Airways Logo
12:50 - 16:10LHR-SAN
11h 20mdirect
British Airways Logo
14:39 - 11:40SAN-LHR
13h 01m1 stop
£512British Airways
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Mo, 17 Nov - Mo, 1 Dez
British Airways Logo
12:50 - 16:10LHR-SAN
11h 20mdirect
British Airways Logo
09:37 - 06:50SAN-LHR
13h 13m1 stop
£517British Airways
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Mo, 24 Nov - Di, 9 Dez
Virgin Atlantic Logo
10:00 - 20:13LCY-SAN
18h 13m2 stops
Virgin Atlantic Logo
07:06 - 08:10SAN-LCY
17h 04m2 stops
£578Virgin Atlantic
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Mo, 24 Nov - Di, 9 Dez
Virgin Atlantic Logo
10:00 - 22:00LCY-SAN
20h 00m2 stops
Virgin Atlantic Logo
13:55 - 17:20SAN-LCY
19h 25m1 stop
£584Virgin Atlantic
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Mo, 16 Feb - Di, 31 Mrz
Iberia Logo
08:50 - 16:10NCL-SAN
15h 20m1 stop
Iberia Logo
18:00 - 19:40SAN-NCL
17h 40m1 stop
£1,482Iberia
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Fr, 28 Nov - Fr, 5 Dez

momondo Fare Finder

 
Locate flights to San Diego that fit your budget, with regularly updated fares and availability. In the last 7 days, momondo users made a total of 279,928 searches and data was last updated on 15 Oktober 2025.
Use the filters below to find and compare flights to San Diego that are best for you.

Fly from

Route

Depart

Return

Price

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

So 1/2

12:05-20:49

2 stops40h 44m

San Diego

So 15/2

18:10-11:50

1 stop33h 40m

£471

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Di 25/11

06:35-15:45

1 stop17h 10m

San Diego

Do 11/12

07:00-05:55

1 stop14h 55m

£472

LondonSan Diego

LGW - SAN

LGWSAN

London Gatwick

Do 15/1

14:00-09:39

1 stop27h 39m

San Diego

Do 22/1

10:35-10:00

1 stop15h 25m

£476

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Mo 24/11

19:15-15:45

1 stop28h 30m

San Diego

Di 9/12

17:35-15:50

1 stop14h 15m

£478

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Mi 4/3

07:40-15:45

1 stop16h 05m

San Diego

Mi 1/4

10:23-07:25

1 stop13h 02m

£491

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Mo 17/11

12:50-16:10

Nonstop11h 20m

San Diego

Mo 1/12

14:39-11:40

1 stop13h 01m

£512

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Mo 24/11

12:50-16:10

Nonstop11h 20m

San Diego

Di 9/12

09:37-06:50

1 stop13h 13m

£517

LondonSan Diego

LCY - SAN

LCYSAN

London City

Mo 24/11

10:00-20:13

2 stops18h 13m

San Diego

Di 9/12

07:06-08:10

2 stops17h 04m

£578

LondonSan Diego

LCY - SAN

LCYSAN

London City

Mo 16/2

10:00-22:00

2 stops20h 00m

San Diego

Di 31/3

13:55-17:20

1 stop19h 25m

£584

Newcastle upon TyneSan Diego

NCL - SAN

NCLSAN

Newcastle upon Tyne

Fr 28/11

08:50-16:10

1 stop15h 20m

San Diego

Fr 5/12

18:00-19:40

1 stop17h 40m

£1,482

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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San Diego flights insights and trends

Explore insights for your San Diego flight to craft the best travel plan

What is the cheapest month to fly to San Diego?

If you don’t want to visit San Diego in February, then you should wait until March to fly from United Kingdom, when ticket prices are also cheap, with an average price of £509.

What is the absolute cheapest flight to San Diego?

See prices from:

What is the cheapest day to depart on your flight to San Diego?

The cheapest day to depart from United Kingdom to San Diego is on a Monday when prices can be found for as low as £570. Flights from United Kingdom to San Diego on a Sunday will generally be more expensive and average around £599. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to San Diego?

In the evening is the cheapest time of day to fly from United Kingdom to San Diego when you can find flight prices for as low as £560. Flying to San Diego in the evening is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the afternoon because they tend to be around £633. Of course, these prices can vary depending on the time of year and what airport you fly to.

How far in advance should I book a flight to San Diego?

You are more likely to see cheaper flights to San Diego from United Kingdom when booking weeks ahead of your departure date. In general, you can expect to find flights to San Diego for around £578 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Diego from United Kingdom for as low as £529 on momondo.

Cheapest flights to San Diego

Find the cheapest flights to San Diego from your nearest city or airport
Find flights from London Heathrow Airport to San Diego
CHEAPEST MONTH TO FLY TO SAN DIEGO FROM LONDON HEATHROW AIRPORTJanuary17% cheaperFlying from London Heathrow Airport to San Diego costs on average just £484 in January
MOST EXPENSIVE MONTH TO FLY TO SAN DIEGO FROM LONDON HEATHROW AIRPORTJuly34% more expensiveIt costs about £778 for flights to San Diego from London Heathrow Airport in July
MOST POPULAR MONTH TO FLY TO SAN DIEGO FROM LONDON HEATHROW AIRPORTOctober164% more users visitedMore momondo users searched in flights to San Diego from London Heathrow Airport in October than any other month

Cheap San Diego flight deals and tips

Summary info about San Diego flight prices, duration and airlines

Best One-Way Price

£268

Best Round-Trip Price

£471

Fastest flight time

28h 49m

Popular in

August
The best one-way flight price to San Diego from United Kingdom in the last 72 hours is £268 (London Gatwick to San Diego).
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The best round-trip flight price to San Diego from United Kingdom in the last 72 hours is £471 (London Heathrow to San Diego).
Search Deals
The fastest flight to San Diego from United Kingdom takes 28h 49m (London Gatwick to San Diego).
Search Deals
August has the highest demand for flights to San Diego, with a 13% price increase on average.
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Frequently asked questions about flying to San Diego

When is the best time to plan a beach trip to San Diego?

If your plan is to spend time at Mission Beach while visiting San Diego, momondo recommends you plan your trip for August when the temperatures are typically higher and the chance of rain is low. For those looking to visit another beach nearby, La Jolla Cove is a great option in the San Diego area.

How far in advance should I book a flight to San Diego?

We recommend purchasing flights from United Kingdom to San Diego 45 days ahead of your departure date because this is when momondo users tend to see the best flight rates. On average, our users have found flights to San Diego for £587. Keep in mind that you might also find cheap flights to San Diego outside of this time window. In fact, momondo users recently found flights from United Kingdom to San Diego for £406.

Is there an alternative airport near San Diego?

Finding an alternative and possibly cheaper destination airport near San Diego is possible. If you are planning a flight to San Diego, consider booking flights to San Diego Carlsbad-Palomar Airport (29 mi from San Diego city centre), Santa Ana J. Wayne/Orange Cnty Airport (78 mi from San Diego city centre), Palm Springs Airport (86 mi from San Diego city centre), Long Beach Municipal Airport (95 mi from San Diego city centre) or Ontario Airport (96 mi from San Diego city centre).

Is there a cheaper alternative to flying into San Diego?

The cheapest airport near San Diego is typically Palm Springs Airport, with an average price of £114/person. These prices vary based on where travellers are coming from. It is suggested that travellers looking to save money try momondo’s Airport-to-Airport Pricing Tool.

When did momondo last update prices for flights to San Diego Airport?

Prices for flights to San Diego Airport are refreshed on a daily basis.

How many operators does momondo search for flights to San Diego Airport?

As of October 2025, there are 17 operators available to choose from for flights to San Diego Airport.

How old do you have to be to fly to San Diego Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel to San Diego Airport.

What documentation or ID do you need to fly to San Diego Airport?

The necessary travel and health documents for your San Diego Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Travelling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
Coronado
Chula Vista

Why use momondo?

Why should I use momondo to find a flight deal to San Diego?

We help find the flight that best suits your needs; momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight for you.

Can I find flights to San Diego with flexible booking policies on momondo?

Flights to San Diego with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights to San Diego?

Once all potential San Diego flight options are in front of you momondo lets you sort and filter flights based on preferences such as airline, price and flight times, amongst many other options.

I’m not ready to book a flight to San Diego right now. Can momondo alert me if prices change?

If you are not ready to book a flight to San Diego now, use our insights above to find helpful tips or alternatively set up a price alert; this is where momondo will track prices on flights to San Diego and let you know when they change.

An easier way to manage your San Diego trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
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