£223 Cheap Flights from San Diego (SAN) to London (LHR)

You can find one-way and return flights from San Diego, CA (SAN) to London (LHR) with Expedia. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see our cheapest fares first, and use the Price Tracking tool to receive alerts when SAN to LHR ticket fares go up or down.

The cheapest months to fly from San Diego, CA (SAN) to London (LHR) are typically during off-peak season when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you are able to. Use the calendar view in your search to see which months have low fares on this route.

Only one airline offers direct flights from San Diego, CA (SAN-San Diego Intl.) to London (LHR-Heathrow). British Airways operates 14 direct flights from San Diego, CA (SAN-San Diego Intl.) to London (LHR-Heathrow) every week.

To find a cheap flight from San Diego, CA (SAN) to London (LHR), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.

The cheapest months to fly from San Diego, CA (SAN-San Diego Intl.) to London (LHR-Heathrow) are typically October and September, with average return flight prices around £516. However, the most popular months for this route are December and June, which means you'll find plenty of flight options during those times. If you're looking for the best balance between price and availability, you might consider flying in the shoulder seasons around these popular times to potentially find better deals while still having good flight choices.

The earliest flight from San Diego, CA (SAN-San Diego Intl.) to London (LHR-Heathrow) typically departs around 12:55 AM. This service is offered by American Airlines and British Airways. This is a seasonal service, active only in June. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.

When flying from San Diego, CA (SAN-San Diego Intl.) to London (LHR-Heathrow), you have a few options for flight duration. A nonstop flight typically takes around 10 hours 48 minutes. This route covers a distance of approximately 8,808 kilometers. If you opt for a flight with one stop, your journey will generally be longer, taking about 13 hours 48 minutes. Flights with two or more stops usually take even longer, around 17 hours. Keep in mind that actual flight times can vary due to factors like wind patterns and air traffic, so it's always a good idea to allow for some flexibility in your travel plans.

Select the "Business class" and "First class" filters when looking for San Diego, CA (SAN) to London (LHR) flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.

It's easy to earn miles on a San Diego, CA (SAN-San Diego Intl.) to London (LHR-Heathrow) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.

*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.

If you're planning to travel to London from San Diego Intl. (SAN), you can fly directly into Heathrow (LHR) which offers international flights and connections. Some flights may connect through major hubs like Sky Harbor Intl. (PHX), Los Angeles Intl. (LAX), or O'Hare Intl. (ORD) before reaching London. Compare routes and airports on Expedia to find the best flight options for your travel plans.

Typically, booking a last minute flight from San Diego, CA (SAN-San Diego Intl.) to London (LHR-Heathrow) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.

Securing a San Diego, CA (SAN-San Diego Intl.) to London (LHR-Heathrow) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.

If you booked your San Diego, CA (SAN) to London (LHR) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.