Find cheap airlines flights from London to San Diego

You can choose from 4 airlines that fly from London to San Diego, including Air Canada, Ryanair, and Jetblue Airways. American Airlines has lowest fares on this route.
Air Canada logo Air Canada
Ryanair logo Ryanair
Jetblue Airways logo Jetblue Airways
British Airways logo British Airways
Airlines are determined based on actual purchased flight tickets from London to San Diego according to previous 12 months data from Trip.com.

Book direct flights from London to San Diego: One way flights from $815, round trip flights from $1,139. Find flight deals for the next 3 months below.

Displayed flight fares from London to San Diego are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Flight Info | London to San Diego

The distance between London and San Diego is approximately 8,822.25 km. It takes around 11 hours 20 minutes on average to fly from London to San Diego. Based on Trip.com's data travel demand peaks in July. The off-season for travel is September.

Cheapest one-way flight price$572
Cheapest round-trip ticket price$851
Off-season for travelSeptember
Peak season for travelJuly
Flight distance8,822.25 km
Average flight time11 hours 20 minutes
Popular airlineAir Canada
Flight statistics for the London–San Diego route are based on aggregated booking data from Trip.com over the past 12 months.

Trip.com price insights on flights from London to San Diego

What is the cheapest month for round-trip flights from London to San Diego?

Average price of round-trip flights from London to San Diego purchased by Trip.com users by month over the past 12 months

According to historical data from Trip.com, the lowest prices for flights from London to San Diego are found during January, with an average price of $799. Conversely, the highest prices are found during September, with an average price of up to $5,535.

$5,535
$3,167
$799
0
    Cheapest
  • $893
    Jun
  • $920
    Jul
  • $1,131
    Aug
  • $5,535
    Sep
  • $910
    Oct
  • $982
    Nov
  • $981
    Dec
  • $799
    Jan
  • $839
    Feb
  • $1,051
    Mar
  • $1,479
    Apr
  • $1,478
    May

When is the cheapest day to fly from London to San Diego during Juneteenth National Independence Day?

Data is based on the lowest one-way price from London to San Diego during Juneteenth National Independence Day on Trip.com in the past 3 days.

Juneteenth National Independence Day is scheduled for Jun 19. The cheapest flights from London to San Diego are available on Jun 15, with fares starting at $675.

$2,012
$1,344
$675
$7
  • $675
    15
    Jun
  • $1,888
    16
  • $2,012
    17
  • $726
    18
  • $1,093
    19
  • $1,352
    20
  • $879
    21

Frequently Asked Questions

  • What are the cheapest flights from London to San Diego (LON-SAN)?

    Based on Trip.com data, Jetblue Airways offers one-way fares as low as $572 on Cheapest nonstop routes (e.g. LGW to SAN on Thu, Jun 25), while Air Canada offers Cheapest nonstop round-trips from $851 departing on Fri, Jun 26 and returning on Fri, Jul 3.
  • At the moment, you can catch a nonstop flight from London to San Diego with the following airlines, including: Ryanair British Airways Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.
  • It takes around 11 hours 20 minutes to fly from London (LON) to San Diego (SAN).
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from London to San Diego is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • Based on Trip.com data in the past 4 weeks, there is 14 flight per week flying from London to San Diego. You can check the weekly schedule for popular airlines on this route below: British Airways: S/M/T/W/T/F/S -- BA273 (15:15)
  • To find best deals on flights from London to San Diego, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Thu, Jun 25, with one-way flights priced at just $572.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is American Airlines.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for San Diego travel is around July.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from London to San Diego is September, when demand for travel is lower.
  • After crunching the numbers on our June flight calendar, it's currently cheapest to fly from London to San Diego on June 25, 2026 with Jetblue Airways, with prices starting at $552.
  • You can land at any one of the following hubs in San Diego, with Heathrow Airport to San Diego International Airport (LHR-SAN) is by far the most common option on this route: San Diego International Airport (SAN) McClellan-Palomar Airport (CLD) Marine Corps Air Station Miramar (NKX).
  • The time difference between San Diego and London is 8h.
  • Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.

Note: Prices shown on this page are estimated lowest price and include all taxes and fees found in the last 24 hours.

Book with no extra fees

Prices displayed in this page are all-inclusive prices (incl. taxes, fuel surcharge, civil aviation development fund, etc) with all fees confirmed before payment. Fees for luggage, meals, WLAN, or other additional services are also included as shown in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page were updated within last 24 hours—even in real-time. The more popular the route, the more precise the data.

Change & Cancellation Policy

Trip.com displays flight cancellation and change policies for each flight ticket during the booking process, including fees and applicable conditions. Please check the following scenarios:
Voluntary cancellation/change:
To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy.
Cancellation/change due to a flight schedule change:
If the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.