£250+ Cheap flights to San Diego

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 14/1. Fares are subject to change and may not be available on all flights or dates of travel.
— SAN
27 Dec — 3 Jan1
1 adult
1 adult, Economy, 0 bags

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Cheapest flights to San Diego
Explore the most affordable flight options available to San Diego. Find the lowest fares based on data from user searches, with prices last updated on 27 November 2025.

Tue 2/1211:55LHR - SAN
1 stop18h 40mBritish Airways
Tue 9/1207:21SAN - LHR
1 stop15h 29mBritish Airways
Deal found 25/11£530
Tue 2/1217:00LHR - SAN
2 stops35h 16mFinnair
Fri 12/1222:45SAN - LHR
1 stop25h 05mFinnair
Deal found 25/11£546
Thu 11/1217:00LHR - SAN
2 stops35h 16mFinnair
Wed 14/113:19SAN - LHR
1 stop14h 21mFinnair
Deal found 24/11£547
Wed 3/1211:55LHR - SAN
1 stop16h 21mIberia
Sun 14/1209:23SAN - LHR
1 stop14h 27mIberia
Deal found 26/11£548
Thu 4/1212:50LHR - SAN
Nonstop11h 20mAmerican Airlines
Thu 11/1210:47SAN - LHR
1 stop15h 13mAmerican Airlines
Deal found 25/11£549
Wed 3/1219:40LHR - SAN
2 stops20h 48mIberia
Thu 11/1210:47SAN - LHR
1 stop15h 13mIberia
Deal found 26/11£551
Tue 9/1212:50LHR - SAN
Nonstop11h 20mAmerican Airlines
Mon 15/1209:23SAN - LHR
1 stop14h 27mAmerican Airlines
Deal found 26/11£552
Wed 10/1209:00LHR - SAN
2 stops34h 53mAir Canada
Wed 24/1218:10SAN - LHR
1 stop33h 40mAir Canada
Deal found 24/11£555
Thu 4/1219:05LHR - SAN
2 stops35h 16mIberia
Mon 15/1206:15SAN - LHR
1 stop18h 00mIberia
Deal found 26/11£558
Tue 2/1211:55LHR - SAN
1 stop18h 40mBritish Airways
Sun 7/1213:22SAN - LHR
1 stop13h 03mBritish Airways
Deal found 25/11£559
Wed 10/1208:45LHR - SAN
1 stop15h 00mMultiple Airlines
Tue 23/1218:10SAN - LHR
1 stop33h 40mMultiple Airlines
Deal found 24/11£560
Thu 11/1207:15LCY - SAN
2 stops22h 29mBritish Airways
Wed 14/109:24SAN - LCY
2 stops20h 41mBritish Airways
Deal found 24/11£578

Flights to San Diego in 2025

Find the latest flights to San Diego in 2025, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data was last updated on 27 November 2025.

Return from

£521

One-way from

£250

Popular in

July

Cheapest in

February

Average price

£563

Good round-trip deal

£586 or less

Good one-way deal

£619 or less
United Airlines
  • United Airlines
  • 28/1-1/2
  • 2 total stops
  • 31h 05m total
  • London to San Diego
14/1
  • 14/1
  • 2 total stops
  • 55h 05m total
  • London to San Diego
Highest demand for flights based on searches. 13% potential increase in price (£93 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£17 potential savings vs. average return price).
Average for return flights in November 2025
Price to beat on a round-trip flight from London to San Diego.
Price to beat on a one-way flight from London to San Diego.

Cheapflights Fare Finder

 
Locate flights to San Diego that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data was last updated on 27 November 2025.
Use the filters below to find and compare flights to San Diego that are best for you.

Fly from

London

Route

Depart

Return

Price

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Thu 12/2

10:15-18:50

1 stop16h 35m

San Diego

Thu 19/2

09:25-06:35

1 stop13h 10m

£537

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Fri 13/3

06:35-16:45

1 stop17h 10m

San Diego

Mon 16/3

13:53-10:15

1 stop13h 22m

£542

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Wed 28/1

12:50-16:10

Nonstop11h 20m

San Diego

Sun 1/2

07:10-06:50

1 stop15h 40m

£545

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Thu 15/1

09:30-21:56

2 stops20h 26m

San Diego

Mon 19/1

06:30-07:10

2 stops16h 40m

£547

LondonSan Diego

LCY - SAN

LCYSAN

London City

Thu 15/1

09:15-22:33

2 stops21h 18m

San Diego

Wed 28/1

10:52-12:55

2 stops42h 03m

£548

LondonSan Diego

STN - SAN

STNSAN

London Stansted

Thu 15/1

18:25-15:45

2 stops29h 20m

San Diego

Wed 28/1

17:35-22:10

2 stops20h 35m

£552

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Thu 15/1

12:50-16:10

Nonstop11h 20m

San Diego

Wed 28/1

10:09-13:15

1 stop19h 06m

£554

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Thu 16/4

06:55-15:25

1 stop16h 30m

San Diego

Wed 22/4

06:20-07:25

2 stops17h 05m

£554

LondonSan Diego

LGW - SAN

LGWSAN

London Gatwick

Tue 3/2

18:40-20:49

2 stops34h 09m

San Diego

Wed 25/3

16:00-17:50

2 stops18h 50m

£556

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Wed 18/3

09:30-20:53

2 stops18h 23m

San Diego

Wed 15/4

06:20-06:30

2 stops16h 10m

£557

Flights are sorted by cheapest return flights first.

Deals found on 26/11

Showing 1-10 of 60 results
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Best time to book a flight to San Diego

Have a flexible travel schedule? Discover the best time to fly to San Diego 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 to San Diego

When is the best time to book a flight to San Diego?

Use this chart to determine the optimal time to book a return flight from London to San Diego. Price data was last updated on 21 November 2025.

To ensure you get the cheapest price possible for a flight to San Diego, you should look to book at least 45 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

How long is the flight to San Diego?

On average, a flight from London to San Diego takes 24 hours 41 minutes. Flights to San Diego from other popular cities in United Kingdom will vary in length. Below are a few examples of popular routes and their flight times.

What are the cheapest airlines that fly to San Diego?

The cheapest airlines flying from London to San Diego are Air Canada, Virgin Atlantic and Lufthansa.

Rainfall in San Diego by month

Plan your trip to San Diego by taking into account the average rainfall totals by month.

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.

Temperature in San Diego by month

Plan your trip to San Diego by taking into account the average temperature totals by month.

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).

Reviews of airlines servicing San Diego

Get insights into the airlines that provide service to San Diego. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Diego. Reviews last updated 27 November 2025.
Get a feel of what it's like to fly with Finnair, Virgin Atlantic, andIberia to the United States by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Comfort

7.4

Crew

8.1

Overall

7.6

Entertainment

6.9

Food

6.7

Boarding

7.6

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.

Comfort

7.4

Crew

8.1

Overall

7.6

Entertainment

6.9

Food

6.7

Boarding

7.6

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.

Comfort

7.4

Crew

8.1

Overall

7.6

Entertainment

6.9

Food

6.7

Boarding

7.6

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.

Comfort

7.4

Crew

8.1

Overall

7.6

Entertainment

6.9

Food

6.7

Boarding

7.6

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.

Comfort

7.4

Crew

8.1

Overall

7.6

Entertainment

6.9

Food

6.7

Boarding

7.6

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.

Comfort

7.4

Crew

8.1

Overall

7.6

Entertainment

6.9

Food

6.7

Boarding

7.6

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.

FAQs about flying to San Diego

San Diego climate

The average daily temperature in San Diego is 21 degrees Celsius. During the summer months and into October temperatures of 29 degrees are not unusual. The city averages a mere 10 inches (25 cm) of rain and even during the coldest months of December and January, temperatures still average a mild 20 C.

Getting around San Diego

Like much of Southern California, the easiest way to get around San Diego is by car. You can find several rental car companies at the airport. Bus tickets are cheap and the trolley system is a great way to get around the city or to nearby Tijuana. The Blue Line can take you through Old Town before crossing the border into Mexico. Tickets cost a few dollars and last around two hours.

Getting downtown from the airport

The main airport for travellers on flights to San Diego is San Diego International Airport(SAN). Public transportation options from the airport include buses, light rail and trains. Car rental and taxis are also available.

What is good to know if travelling to San Diego?

  • The Hotel del Coronado on Coronado Island is the largest wooden structure in the United States.
  • The zoo is home to a family of giant pandas, and when Hua Mei was born here, she was the first baby panda born in the Western Hemisphere since 1990.
  • Each July, Mission Bay is home to a San Diego original, the Over-the-Line Tournament. This beach softball event dates from 1953 and is renowned for boisterous, anything-goes behaviour.
  • And for the holidays, kids of all ages gather in the lobby of Loews Coronado Bay Resort, where the Cat in the Hat gives regular readings of How the Grinch Stole Christmas. Theodor Geisel (Dr. Seuss) is one of San Diego’s most treasured native sons.

San Diego airport overview

Sometimes referred to as Lindbergh Field, San Diego International Airport  is located 4.8km (3 miles) northwest of the centre of the city of San Diego, at the southern tip of California.

It is the United States’ busiest single runway commercial airport, handling around 18 million passengers per year. As it’s situated within a highly populated suburban area, departures are only permitted between 6:30am and 11:30pm.

San Diego International has three terminals: Terminals 1 and 2 and the Commuter Terminal. All international arrivals are handled by Terminal 2, while the Commuter Terminal services flights between San Diego and Los Angeles International Airport. The airport is relatively easy to navigate and flights are generally punctual during most of the year, however delays are common in autumn and winter when visibility is low (thanks to the mighty Santa Ana winds that sweep through the region).

Despite having only one runway, San Diego International manages to keep up with the number of passengers frequenting its terminals each year. It’s a small and clean airport with helpful staff and sufficient amenities.

  • What airport do you fly into for flights to San Diego?

    Booking a flight to San Diego (SAN) is your only option if you intend on flying to San Diego. It is only a 2.6 mi journey from San Diego to San Diego’s city center. San Diego is the only San Diego airport and it handles 4 daily flights from London. 12 airlines have flights from London to San Diego on a regular basis.

  • Can I find cheaper flights to San Diego if I am willing to have stopovers?

    Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to San Diego on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to San Diego?

    Based on reviews from Cheapflights users, Air Canada is rated the highest out of the airlines that fly to San Diego.

  • What is the cheapest airport to fly to in San Diego?

    San Diego is currently the cheapest airport to fly to in San Diego. One-way flights to San Diego typically cost £37, while return flights cost around £21.

  • How much is a return flight to San Diego?

    A return flight to San Diego will typically cost around £138, however they can be found for as little as £21.

  • Where does the fastest flight to San Diego depart from?

    For those looking to save time traveling to San Diego, London offers the quickest one-way flight (11 hours 20 minutes).

  • Does San Diego have car hire?

    Yes. Those touching down at San Diego can take advantage of the car hire services offered upon their arrival.

  • Are there hotels close to San Diego?

    Yes. San Diego has hotels nearby for those requiring accommodations. Sheraton San Diego Resort is the closest property to San Diego (0.0 mi away from San Diego).

See more FAQs

Travelling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
Coronado
El Cajon

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