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£49+ Cheap flights from San Diego

This is the cheapest return flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 19/9. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
SAN — LHR
4 Aug — 11 Aug1
1 adult

What to know about flights from San Diego

Discover essential information about flights departing from San Diego, including flight schedules, destinations, airlines operating at the San Diego airport, and any specific guidelines or requirements for travellers. Please note that the information is based on the most recent updates available. Data last updated 30 July 2025.

Cheapest round-trip flight

£544

Cheapest airline

British Airways

Good round-trip deal

£75 or less

Good one-way deal

£51 or less
The cheapest round-trip flight from San Diego is currently to London Heathrow.
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On average, British Airways currently has the cheapest one-way flight from San Diego (avg. price of £688).
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Price to beat on a round-trip flight from San Diego.
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Price to beat on a one-way flight from San Diego.
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Find flights from San Diego

Cheapest flights from San Diego
Explore the most affordable flight options available from San Diego. Find the lowest fares based on data from user searches, with prices last updated on 30 July 2025.

Wed 15/1018:00SAN - LHR
2 stops17h 40mLufthansa
Thu 23/1006:55LHR - SAN
1 stop16h 30mLufthansa
Deal found 29/7£456
Sat 11/1020:08SAN - LHR
1 stop27h 17mUnited Airlines
Fri 24/1016:15LHR - SAN
1 stop14h 12mUnited Airlines
Deal found 29/7£457
Mon 6/1007:20SAN - LCY
2 stops16h 50mVirgin Atlantic
Mon 20/1017:10LCY - SAN
1 stop26h 50mVirgin Atlantic
Deal found 29/7£457
Sat 13/922:30SAN - LHR
2 stops24h 00mAir Canada
Sun 5/1009:30LHR - SAN
1 stop18h 05mAir Canada
Deal found 28/7£458
Sun 17/819:34SAN - LHR
1 stop13h 41mDelta
Sat 27/911:30LHR - SAN
2 stops19h 29mDelta
Deal found 29/7£459
Wed 27/806:20SAN - LCY
2 stops21h 50mBritish Airways
Mon 1/915:30LCY - SAN
2 stops34h 44mBritish Airways
Deal found 28/7£459
Mon 11/806:15SAN - LGW
2 stops20h 40mMultiple Airlines
Wed 27/810:55LGW - SAN
2 stops20h 42mMultiple Airlines
Deal found 28/7£460
Thu 18/919:32SAN - LHR
1 stop33h 18mBritish Airways
Wed 8/1014:55LHR - SAN
Nonstop11h 05mBritish Airways
Deal found 28/7£461
Fri 7/1113:10SAN - LGW
2 stops20h 40mSWISS
Mon 10/1118:40LGW - SAN
2 stops35h 40mSWISS
Deal found 29/7£462
Tue 4/1111:44SAN - LCY
2 stops20h 51mDelta
Wed 26/1110:00LCY - SAN
2 stops19h 35mDelta
Deal found 29/7£465
Mon 18/808:10SAN - LHR
2 stops17h 30mMultiple Airlines
Wed 3/914:05LHR - SAN
2 stops29h 26mMultiple Airlines
Deal found 29/7£471
Tue 14/1016:07SAN - LCY
2 stops18h 38mSWISS
Fri 24/1009:25LCY - SAN
2 stops21h 02mSWISS
Deal found 29/7£477

Find flights from San Diego within your budget

 
Find flights departing from San Diego that match your specified budget. Filter results by price range, allowing you to narrow down options and find flights that fit within your financial constraints. Please note that the search results are based on data from user searches, with fares last updated on 30 July 2025. In the last 7 days, Cheapflights users made a total of 858,174 searches

Fly to

Heathrow

Route

Depart

Return

Price

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Wed 15/10

18:00-19:40

2 stops17h 40m

London Heathrow

Thu 23/10

06:55-15:25

1 stop16h 30m

£456

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Sat 11/10

20:08-07:25

1 stop27h 17m

London Heathrow

Fri 24/10

16:15-22:27

1 stop14h 12m

£457

San DiegoLondon

SAN - LCY

SANLCY

San Diego

Mon 6/10

07:20-08:10

2 stops16h 50m

London City

Mon 20/10

17:10-12:00

1 stop26h 50m

£457

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Sat 13/9

22:30-06:30

2 stops24h 00m

London Heathrow

Sun 5/10

09:30-19:35

1 stop18h 05m

£458

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Sun 17/8

19:34-17:15

1 stop13h 41m

London Heathrow

Sat 27/9

11:30-22:59

2 stops19h 29m

£459

San DiegoLondon

SAN - LCY

SANLCY

San Diego

Wed 27/8

06:20-12:10

2 stops21h 50m

London City

Mon 1/9

15:30-18:14

2 stops34h 44m

£459

San DiegoLondon

SAN - LGW

SANLGW

San Diego

Mon 11/8

06:15-10:55

2 stops20h 40m

London Gatwick

Wed 27/8

10:55-23:37

2 stops20h 42m

£460

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Thu 18/9

19:32-12:50

1 stop33h 18m

London Heathrow

Wed 8/10

14:55-18:00

Nonstop11h 05m

£461

San DiegoLondon

SAN - LGW

SANLGW

San Diego

Fri 7/11

13:10-17:50

2 stops20h 40m

London Gatwick

Mon 10/11

18:40-22:20

2 stops35h 40m

£462

San DiegoLondon

SAN - LCY

SANLCY

San Diego

Tue 4/11

11:44-16:35

2 stops20h 51m

London City

Wed 26/11

10:00-21:35

2 stops19h 35m

£465

Flights are sorted by cheapest return flights first.

Deals found on 28/7

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

Have a flexible travel schedule? Discover the best time to fly from 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.

Travel insights for flights from San Diego

Get recent, data-driven insights about flights from San Diego including ideal travel times, pricing trends, and more.

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

Use this chart to determine the optimal time to book a return flight from San Diego to Heathrow. Price data was last updated on 25 July 2025.

Booking 46 days in advance of your planned departure date is, on average, the best time to get cheap flights from San Diego. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, December is the cheapest month in which you can book a flight from San Diego (average of £321). Flying from San Diego in June will prove the most costly (average of £622). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

Which airlines fly from San Diego?

Only one airline operates round-trip flights from San Diego: British Airways. This airline flies to the following popular destinations: London.

British Airways
British Airways
From £638
Alaska Airlines
Alaska Airlines
From £257
Frontier
Frontier
From £43
Iberia
Iberia
From £676

What are popular destinations to fly to from San Diego?

If you’re flying from San Diego, these routes are more frequently taken by airlines Chicago (538 flights per day), San Francisco (469 flights per day) and New York (433 flights per day).

London
London
From £404
New York
New York
From £148
Las Vegas Harry Reid Intl
Las Vegas Harry Reid Intl
From £30
San Francisco
San Francisco
From £110

What is the cheapest place to fly to from San Diego?

The cheapest city to fly to from San Diego is Las Vegas Harry Reid Intl, with prices starting at £22. Explore other affordable destinations below.

Las Vegas Harry Reid Intl
Las Vegas Harry Reid Intl
From £30
San Francisco
San Francisco
From £110
Denver Intl
Denver Intl
From £129
New York
New York
From £148

Airline reviews for flights from San Diego

Get insights into the airlines that provide service from 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 airline for your flight from San Diego. In the last 7 days, Cheapflights users made a total of 858,174 searches.
Get a feel of what it's like to fly with Delta, United Airlines, andJetBlue from San Diego 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.
Delta
8.0
Very Good
7,979 reviews
Check prices

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very Good
7,979 reviews
Delta
8.0
Very Good
7,979 reviews
Check prices

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,896 reviews
Delta
8.0
Very Good
7,979 reviews
Check prices

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
JetBlue
7.3
Good
2,913 reviews
Delta
8.0
Very Good
7,979 reviews
Check prices

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Air Canada
7.1
Good
9,826 reviews
Delta
8.0
Very Good
7,979 reviews
Check prices

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Iberia
7.0
Good
2,859 reviews
Delta
8.0
Very Good
7,979 reviews
Check prices

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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Related info for your journey

Access useful and relevant information related to your journey from San Diego. This can include details such as airport transportation, visa requirements, travel insurance, luggage regulations, and any other information that can ensure a smooth and hassle-free travel experience. Please note that the information is based on general guidance and may need to be verified with official sources. Data last updated 30 July 2025.

  • What are the most popular destinations to fly to from San Diego?

    This month, the top selected destinations from San Diego are Boston, Chicago, Atlanta. Throughout the year, Boston, Chicago, Atlanta are some of the top choices made by users flying from San Diego.

  • What is the cheapest flight from San Diego to anywhere?

    Users have flown out of San Diego for as low as £22 to Las Vegas (prices may vary depending on the airline and departure time). On average, users have booked flights for £340 to fly from San Diego.

  • What are the cheapest airlines flying from San Diego to anywhere?

    Over the past few days, we've found that Spirit Airlines, Frontier, and Alaska Airlines have the cheapest prices from San Diego. Spirit Airlines flights from San Diego to Las Vegas Harry Reid Intl (£26), Frontier flights from San Diego to San Francisco (£32), and Alaska Airlines flights from San Diego to Kahului (£193).

  • What is the cheapest premium economy flight from San Diego?

    Here are some of the cheapest offers we have found for the cheapest premium economy flights from San Diego.
    San Diego to Las Vegas from £149
    San Diego to Denver from £428
    San Diego to Boston from £1,146
    San Diego to London Heathrow Airport from £1,340

  • What is the cheapest first class flight from San Diego?

    If you’re looking for a cheap first-class flight from San Diego, consider Las Vegas. Prices start at £194 so you can fly first-class even on a budget.

  • What is the cheapest month to fly from San Diego?

    At the present moment the cheapest month to fly from San Diego is currently December; with June being the most expensive. Prices will vary depending on multiple factors such as booking in advance, airline and departure airports and times.

  • Where are the cheapest places to fly to from San Diego?

    Check out the cheapest flights from San Diego to embark to:
    Travel from San Diego to London from £386 round trip

  • How does Cheapflights help users find flights from San Diego?

    900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight from San Diego today with Cheapflights!

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

    Cheapflights simply makes it quick and affordable to book flights from San Diego by bringing together all flight options from hundreds of airlines and agencies online — and we put them in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

    Yes, we can. To see specific flights from San Diego with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

    Yes! Start tracking prices for flights from San Diego today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive the alerts.

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How does Cheapflights help users find flights from San Diego?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight from San Diego today with Cheapflights!

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

Cheapflights simply makes it quick and affordable to book flights from San Diego by bringing together all flight options from hundreds of airlines and agencies online — and we put them in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Yes, we can. To see specific flights from San Diego with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Yes! Start tracking prices for flights from San Diego today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive the alerts.

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