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£42+ Cheap flights from 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 14/3. 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
22 Mar — 29 Mar1
1 adult
1 adult, Economy, 0 bags

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 20 February 2026.

Cheapest airline

Hawaiian Airlines

Good round-trip deal

£169 or less

Good one-way deal

£19 or less
On average, Hawaiian Airlines currently has the cheapest one-way flight from San Diego (avg. price of £302).
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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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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 20 February 2026.

Sat 14/306:15
SAN
-
SFO
Nonstop1h 50m
United Airlines
Sun 15/322:35
SFO
-
SAN
Nonstop1h 39m
United Airlines
Deal found 18/2£87
Wed 29/421:12
SAN
-
SFO
Nonstop1h 49m
Alaska Airlines
Sat 2/507:15
SFO
-
SAN
Nonstop1h 40m
Alaska Airlines
Deal found 19/2£88
Tue 5/513:00
SAN
-
SFO
2 stops6h 55m
Southwest
Tue 12/505:55
SFO
-
SAN
1 stop4h 55m
Southwest
Deal found 17/2£91
Sat 14/321:20
SAN
-
SFO
Nonstop1h 40m
Southwest
Tue 17/314:30
SFO
-
SAN
Nonstop1h 30m
Southwest
Deal found 20/2£94
Wed 1/419:00
SAN
-
SFO
1 stop5h 15m
Southwest
Wed 8/406:20
SFO
-
SAN
2 stops11h 25m
Southwest
Deal found 17/2£95
Fri 24/421:12
SAN
-
SFO
Nonstop1h 49m
Alaska Airlines
Tue 28/407:04
SFO
-
SAN
1 stop6h 58m
Alaska Airlines
Deal found 19/2£98
Fri 13/306:15
SAN
-
SFO
Nonstop1h 50m
United Airlines
Mon 16/307:00
SFO
-
SAN
Nonstop1h 40m
United Airlines
Deal found 20/2£102
Mon 16/309:54
SAN
-
SFO
Nonstop1h 50m
United Airlines
Tue 24/311:00
SFO
-
SAN
Nonstop1h 44m
United Airlines
Deal found 19/2£102
Fri 10/406:36
SAN
-
SFO
Nonstop1h 48m
United Airlines
Sat 18/420:45
SFO
-
SAN
Nonstop1h 53m
United Airlines
Deal found 17/2£105
Tue 28/419:40
SAN
-
GLA
1 stop15h 55m
British Airways
Fri 8/505:50
GLA
-
SAN
1 stop17h 05m
British Airways
Deal found 19/2£465
Mon 13/416:41
SAN
-
EDI
2 stops17h 54m
British Airways
Mon 27/415:10
EDI
-
SAN
1 stop31h 45m
British Airways
Deal found 17/2£465
Sat 11/422:30
SAN
-
EDI
2 stops28h 05m
United Airlines
Fri 24/409:40
EDI
-
SAN
2 stops22h 19m
United Airlines
Deal found 18/2£468

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 20 February 2026. In the last 7 days, Cheapflights users made a total of 858,174 searches

Fly to

Heathrow

Route

Depart

Return

Price

San DiegoSan Francisco

SAN - SFO

SANSFO

San Diego

Sat 14/3

17:55-19:42

Nonstop1h 47m

San Francisco

Sun 22/3

07:00-08:40

Nonstop1h 40m

£87

San DiegoSan Francisco

SAN - SFO

SANSFO

San Diego

Tue 31/3

19:00-00:15

1 stop5h 15m

San Francisco

Wed 1/4

05:05-09:30

1 stop4h 25m

£87

San DiegoSan Francisco

SAN - SFO

SANSFO

San Diego

Tue 24/3

19:00-00:15

1 stop5h 15m

San Francisco

Wed 25/3

05:05-09:30

1 stop4h 25m

£87

San DiegoSan Francisco

SAN - SFO

SANSFO

San Diego

Wed 25/3

11:57-13:44

Nonstop1h 47m

San Francisco

Mon 30/3

22:40-00:29

Nonstop1h 49m

£102

San DiegoSan Francisco

SAN - SFO

SANSFO

San Diego

Sun 5/4

06:30-08:20

Nonstop1h 50m

San Francisco

Sun 12/4

06:00-07:35

Nonstop1h 35m

£102

San DiegoSan Francisco

SAN - SFO

SANSFO

San Diego

Fri 10/4

06:36-08:24

Nonstop1h 48m

San Francisco

Sat 18/4

20:45-22:38

Nonstop1h 53m

£105

San DiegoSan Francisco

SAN - SFO

SANSFO

San Diego

Thu 19/3

09:54-11:44

Nonstop1h 50m

San Francisco

Mon 30/3

19:11-23:59

1 stop4h 48m

£109

San DiegoSan Francisco

SAN - SFO

SANSFO

San Diego

Thu 12/3

11:03-14:50

1 stop3h 47m

San Francisco

Mon 16/3

07:00-08:40

Nonstop1h 40m

£109

San DiegoSan Francisco

SAN - SFO

SANSFO

San Diego

Mon 23/3

19:35-23:00

1 stop3h 25m

San Francisco

Wed 25/3

13:05-18:50

1 stop5h 45m

£117

San DiegoSan Francisco

SAN - SFO

SANSFO

San Diego

Tue 17/3

06:20-10:01

1 stop3h 41m

San Francisco

Thu 19/3

06:00-09:07

1 stop3h 07m

£117

Flights are sorted by cheapest return flights first.

Deals found on 20/2

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 20 February 2026.

Booking 34 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 £348). Flying from San Diego in June will prove the most costly (average of £676). 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 £451
Hawaiian Airlines
Hawaiian Airlines
From £221
Alaska Airlines
Alaska Airlines
From £188
American Airlines
American Airlines
From £435

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 (423 flights per day), San Francisco (372 flights per day) and Los Angeles (292 flights per day).

London
London
From £470
Phoenix Sky Harbor Intl
Phoenix Sky Harbor Intl
From £19
San Francisco
San Francisco
From £25

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

The cheapest city to fly to from San Diego is Phoenix Sky Harbor Intl, with prices starting at £19. Explore other affordable destinations below.

Phoenix Sky Harbor Intl
Phoenix Sky Harbor Intl
From £19
San Francisco
San Francisco
From £25
Oakland
Oakland
From £95
Fresno Airterminal
Fresno Airterminal
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 British Airways 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.
British Airways
6.7
Okay
7,756 reviews
Check prices

Boarding

6.9

Entertainment

6.4

Overall

6.7

Comfort

6.8

Food

6.4

Crew

7.6

Reviews

1 / 20
8.0
Excellent

Lakshmi,Dec 2025

SFO - LHR

I had a great time on the flight with good entertainment and food. The staff was awesome. The only thing was there was a delay in boarding and takeoff from London. However, I was pleasantly surprised when the airline sent an apology for the few later landing in Mumbai. They did not have WiFi on board on the leg from London to Mumbai but that was okay for me. On the first leg from SF to London, a couple of seats ahead of me had issues with their display so they could not watch anything on their screens although the stewardess gas be them an option to use the WiFi on their devices. This did not affect me, however, so that was cool. I would recommend British Airways. This was my first time flying with them and I had a lovely flight.
British Airways
6.7
Okay
7,756 reviews
British Airways
6.7
Okay
7,756 reviews
Check prices

Boarding

6.9

Entertainment

6.4

Overall

6.7

Comfort

6.8

Food

6.4

Crew

7.6

Reviews

1 / 20
8.0
Excellent

Lakshmi,Dec 2025

SFO - LHR

I had a great time on the flight with good entertainment and food. The staff was awesome. The only thing was there was a delay in boarding and takeoff from London. However, I was pleasantly surprised when the airline sent an apology for the few later landing in Mumbai. They did not have WiFi on board on the leg from London to Mumbai but that was okay for me. On the first leg from SF to London, a couple of seats ahead of me had issues with their display so they could not watch anything on their screens although the stewardess gas be them an option to use the WiFi on their devices. This did not affect me, however, so that was cool. I would recommend British Airways. This was my first time flying with them and I had a lovely flight.

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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 20 February 2026.

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

    This month, the top selected destinations from San Diego are Austin, Boston, Chicago. 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 £19 to Phoenix Sky Harbor Intl Airport (prices may vary depending on the airline and departure time). On average, users have booked flights for £259 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 Alaska Airlines, Hawaiian Airlines, and American Airlines have the cheapest prices from San Diego. Alaska Airlines flights from San Diego to Kahului (£188), Hawaiian Airlines flights from San Diego to Honolulu (£221), and American Airlines flights from San Diego to London (£435).

  • 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 £202
    San Diego to Denver from £391
    San Diego to Boston from £1,136
    San Diego to London Heathrow Airport from £1,308

  • 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 £192 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 £466 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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