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£40+ 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 9/7. 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
18 juin — 25 juin1
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 13 juin 2025.

Cheapest airline

Frontier

Good round-trip deal

£187 or less

Good one-way deal

£36 or less
On average, Frontier currently has the cheapest one-way flight from San Diego (avg. price of £42).
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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 13 juin 2025.

jeu. 31/706:15SAN - EWR
1 stop7h 38mSpirit Airlines
mer. 6/807:20EWR - SAN
1 stop13h 35mSpirit Airlines
Deal found 12/6£154
sam. 12/708:10SAN - EWR
Nonstop5h 33mHawaiian Airlines
mer. 16/716:34EWR - SAN
Nonstop5h 52mHawaiian Airlines
Deal found 10/6£166
mer. 1/1013:05SAN - JFK
Nonstop5h 41mDelta
mer. 8/1008:00JFK - SAN
Nonstop6h 21mDelta
Deal found 12/6£167
sam. 12/706:15SAN - EWR
1 stop7h 38mMultiple Airlines
mer. 16/716:34EWR - SAN
Nonstop5h 52mMultiple Airlines
Deal found 10/6£168
mer. 1/1008:33SAN - EWR
Nonstop5h 40mAlaska Airlines
mer. 8/1016:29EWR - SAN
1 stop9h 33mAlaska Airlines
Deal found 12/6£174
sam. 25/1007:07SAN - JFK
Nonstop5h 39mAlaska Airlines
mar. 28/1020:29JFK - SAN
1 stop15h 09mAlaska Airlines
Deal found 12/6£174
sam. 12/721:56SAN - JFK
Nonstop5h 33mMultiple Airlines
mer. 16/706:59JFK - SAN
1 stop13h 56mMultiple Airlines
Deal found 11/6£185
sam. 16/822:30SAN - EWR
1 stop8h 04mDelta
mar. 26/813:00EWR - SAN
1 stop8h 01mDelta
Deal found 10/6£189
mer. 20/820:30SAN - JFK
Nonstop5h 30mJetBlue
jeu. 21/807:30JFK - SAN
Nonstop5h 56mJetBlue
Deal found 10/6£189
sam. 12/721:56SAN - JFK
Nonstop5h 33mHawaiian Airlines
mer. 16/710:00JFK - SAN
Nonstop5h 52mHawaiian Airlines
Deal found 11/6£199
mar. 15/722:30SAN - EWR
Nonstop5h 30mUnited Airlines
mer. 6/818:00EWR - SAN
Nonstop5h 52mUnited Airlines
Deal found 11/6£204
sam. 12/712:50SAN - JFK
1 stop7h 52mAmerican Airlines
mer. 16/707:20JFK - SAN
1 stop7h 28mAmerican Airlines
Deal found 10/6£214

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 13 juin 2025. In the last 7 days, Cheapflights users made a total of 858,174 searches

Fly to

Heathrow

Route

Depart

Return

Price

San DiegoNewark

SAN - EWR

SANEWR

San Diego

jeu. 31/7

06:15-16:53

1 stop7h 38m

Newark

mer. 6/8

07:20-17:55

1 stop13h 35m

£154

San DiegoNewark

SAN - EWR

SANEWR

San Diego

sam. 12/7

08:10-16:43

Nonstop5h 33m

Newark

mer. 16/7

16:34-19:26

Nonstop5h 52m

£166

San DiegoNew York

SAN - JFK

SANJFK

San Diego

mer. 1/10

13:05-21:46

Nonstop5h 41m

New York John F Kennedy Intl

sam. 4/10

08:00-11:21

Nonstop6h 21m

£167

San DiegoNewark

SAN - EWR

SANEWR

San Diego

sam. 12/7

06:15-16:53

1 stop7h 38m

Newark

mer. 16/7

16:34-19:26

Nonstop5h 52m

£168

San DiegoNewark

SAN - EWR

SANEWR

San Diego

mer. 1/10

08:33-17:13

Nonstop5h 40m

Newark

mer. 8/10

16:29-23:02

1 stop9h 33m

£174

San DiegoNew York

SAN - JFK

SANJFK

San Diego

sam. 25/10

07:07-15:46

Nonstop5h 39m

New York John F Kennedy Intl

mar. 28/10

20:29-08:38

1 stop15h 09m

£174

San DiegoNew York

SAN - JFK

SANJFK

San Diego

sam. 12/7

21:56-06:29

Nonstop5h 33m

New York John F Kennedy Intl

mer. 16/7

06:59-17:55

1 stop13h 56m

£185

San DiegoNew York

SAN - JFK

SANJFK

San Diego

mer. 20/8

20:30-05:00

Nonstop5h 30m

New York John F Kennedy Intl

jeu. 21/8

07:30-10:26

Nonstop5h 56m

£189

San DiegoNewark

SAN - EWR

SANEWR

San Diego

sam. 16/8

22:30-09:34

1 stop8h 04m

Newark

mar. 26/8

13:00-18:01

1 stop8h 01m

£189

San DiegoNew York

SAN - JFK

SANJFK

San Diego

sam. 12/7

21:56-06:29

Nonstop5h 33m

New York John F Kennedy Intl

mer. 16/7

10:00-12:52

Nonstop5h 52m

£199

Flights are sorted by cheapest return flights first.

Deals found on 11/6

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 9 June 2025.

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 £315). Flying from San Diego in June will prove the most costly (average of £610). 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 £617
Alaska Airlines
Alaska Airlines
From £154
Frontier
Frontier
From £38
Spirit Airlines
Spirit Airlines
From £35

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 (638 flights per day), San Francisco (350 flights per day) and Dallas (346 flights per day).

London
London
From £376
Vancouver Intl
Vancouver Intl
From £85
Washington, D.C.
Washington, D.C.
From £892
Las Vegas Harry Reid Intl
Las Vegas Harry Reid Intl
From £48

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 £36. Explore other affordable destinations below.

Las Vegas Harry Reid Intl
Las Vegas Harry Reid Intl
From £48
Vancouver Intl
Vancouver Intl
From £85
Dallas/Fort Worth
Dallas/Fort Worth
From £109
New York
New York
From £128

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.
Delta
8.0
Very Good
7,946 reviews
Check prices

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

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
7,946 reviews
Delta
8.0
Very Good
7,946 reviews
Check prices

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

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.
Alaska Airlines
8.0
Very Good
10,000 reviews
Delta
8.0
Very Good
7,946 reviews
Check prices

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

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.
KLM
7.8
Good
1,358 reviews
Delta
8.0
Very Good
7,946 reviews
Check prices

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

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.
Finnair
7.6
Good
1,290 reviews
Delta
8.0
Very Good
7,946 reviews
Check prices

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

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.
SWISS
7.5
Good
1,624 reviews
Delta
8.0
Very Good
7,946 reviews
Check prices

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

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 13 juin 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, Atlanta, Chicago 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 £36 to Las Vegas (prices may vary depending on the airline and departure time). On average, users have booked flights for £325 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 Denver Intl (£28), and Alaska Airlines flights from San Diego to Atlanta Hartsfield-Jackson (£113).

  • 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 £146
    San Diego to Denver from £420
    San Diego to Boston from £1,126
    San Diego to Miami from £1,537

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

    If you’re looking for a cheap first-class flight from San Diego, consider San Francisco. Prices start at £405 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 £436 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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