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Flights to San Diego

£283 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 10/2. 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.
British Airways Logo
12:50 - 16:10LHR-SAN
11h 20mdirect
British Airways Logo
18:00 - 12:35SAN-LHR
10h 35mdirect
£498British Airways
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Wed, 11 Feb - Wed, 18 Feb
British Airways Logo
12:50 - 16:10LHR-SAN
11h 20mdirect
British Airways Logo
16:40 - 13:15SAN-LHR
12h 35m1 stop
£500British Airways
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Wed, 11 Feb - Wed, 18 Feb
United Airlines Logo
07:40 - 19:52LHR-SAN
20h 12m2 stops
United Airlines Logo
07:00 - 06:40SAN-LHR
15h 40m2 stops
£516United Airlines
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Mon, 8 Dec - Mon, 15 Dec
Lufthansa Logo
13:45 - 20:48LHR-SAN
15h 03m1 stop
Lufthansa Logo
12:50 - 09:40SAN-LHR
12h 50m1 stop
£516Lufthansa
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Mon, 8 Dec - Mon, 15 Dec
Finnair Logo
06:35 - 13:08GLA-SAN
38h 33m2 stops
Finnair Logo
18:00 - 18:15SAN-GLA
16h 15m1 stop
£585Finnair
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Mon, 12 Jan - Wed, 21 Jan
United Airlines Logo
06:00 - 23:40BHX-SAN
24h 40m3 stops
United Airlines Logo
16:26 - 17:20SAN-BHX
16h 54m2 stops
£589United Airlines
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Tue, 17 Mar - Tue, 31 Mar
Finnair Logo
09:45 - 16:10GLA-SAN
14h 25m1 stop
Finnair Logo
18:00 - 18:15SAN-GLA
16h 15m1 stop
£608Finnair
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Mon, 12 Jan - Wed, 21 Jan
Lufthansa Logo
06:25 - 15:45MAN-SAN
17h 20m1 stop
Lufthansa Logo
18:35 - 23:20SAN-MAN
21h 45m1 stop
£614Lufthansa
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Wed, 4 Mar - Sun, 8 Mar
Virgin Atlantic Logo
13:30 - 22:47MAN-SAN
17h 17m1 stop
Virgin Atlantic Logo
08:00 - 10:30SAN-MAN
18h 30m1 stop
£643Virgin Atlantic
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Thu, 8 Jan - Thu, 22 Jan
Virgin Atlantic Logo
05:45 - 20:53EDI-SAN
23h 08m2 stops
Virgin Atlantic Logo
07:00 - 10:10SAN-EDI
19h 10m2 stops
£653Virgin Atlantic
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Sat, 10 Jan - Sat, 17 Jan

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 13 November 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

Wed 11/2

12:50-16:10

Nonstop11h 20m

San Diego

Wed 18/2

18:00-12:35

Nonstop10h 35m

£498

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Wed 11/2

12:50-16:10

Nonstop11h 20m

San Diego

Wed 18/2

16:40-13:15

1 stop12h 35m

£500

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Mon 8/12

07:40-19:52

2 stops20h 12m

San Diego

Mon 15/12

07:00-06:40

2 stops15h 40m

£516

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Mon 8/12

13:45-20:48

1 stop15h 03m

San Diego

Mon 15/12

12:50-09:40

1 stop12h 50m

£516

GlasgowSan Diego

GLA - SAN

GLASAN

Glasgow Intl

Mon 12/1

06:35-13:08

2 stops38h 33m

San Diego

Wed 21/1

18:00-18:15

1 stop16h 15m

£585

BirminghamSan Diego

BHX - SAN

BHXSAN

Birmingham

Tue 17/3

06:00-23:40

3 stops24h 40m

San Diego

Tue 31/3

16:26-17:20

2 stops16h 54m

£589

GlasgowSan Diego

GLA - SAN

GLASAN

Glasgow Intl

Mon 12/1

09:45-16:10

1 stop14h 25m

San Diego

Wed 21/1

18:00-18:15

1 stop16h 15m

£608

ManchesterSan Diego

MAN - SAN

MANSAN

Manchester

Wed 4/3

06:25-15:45

1 stop17h 20m

San Diego

Sun 8/3

18:35-23:20

1 stop21h 45m

£614

ManchesterSan Diego

MAN - SAN

MANSAN

Manchester

Thu 8/1

13:30-22:47

1 stop17h 17m

San Diego

Thu 22/1

08:00-10:30

1 stop18h 30m

£643

EdinburghSan Diego

EDI - SAN

EDISAN

Edinburgh Turnhouse

Sat 10/1

05:45-20:53

2 stops23h 08m

San Diego

Sat 17/1

07:00-10:10

2 stops19h 10m

£653

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to San Diego from

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 £519.

What is the absolute cheapest flight to San Diego?

In the past two weeks, users have booked deals to San Diego for £113/person, which is 41% cheaper than the average flight to San Diego. To find the cheapest price to San Diego from your area, use momondo’s Airport-to-Airport Pricing Tool.
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 Tuesday when prices can be found for as low as £575. Flights from United Kingdom to San Diego on a Thursday will generally be more expensive and average around £592. 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 £567. 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 £630. 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 £588 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 £541 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 £490 in January
MOST EXPENSIVE MONTH TO FLY TO SAN DIEGO FROM LONDON HEATHROW AIRPORTJuly34% more expensiveIt costs about £790 for flights to San Diego from London Heathrow Airport in July
MOST POPULAR MONTH TO FLY TO SAN DIEGO FROM LONDON HEATHROW AIRPORTJuly242% more users visitedMore momondo users searched in flights to San Diego from London Heathrow Airport in July 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

£283

Best Round-Trip Price

£502

Fastest flight time

11h 20m

Popular in

August
The best one-way flight price to San Diego from United Kingdom in the last 72 hours is £283 (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 £502 (London Heathrow to San Diego).
Search Deals
The fastest flight to San Diego from United Kingdom takes 11h 20m (London Heathrow to San Diego).
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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 £598. 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 £412.

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 £164/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 November 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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