Cheap flights from the United Kingdom to San Diego from $318
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from the United Kingdom to San Diego departing on 9/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from the United Kingdom to San Diego
Recent round-trip flight deals from the United Kingdom to San Diego
Recent one-way flight deals from the United Kingdom to San Diego
Recent last minute flight deals from the United Kingdom to San Diego
Recent direct flight deals from the United Kingdom to San Diego
Lufthansa flights from United Kingdom to San Diego
Our best Lufthansa deals on United Kingdom to San Diego flight tickets
Air Canada flights from United Kingdom to San Diego
Our best Air Canada deals on United Kingdom to San Diego flight tickets
See travel insights to San Diego from
How to get the cheapest flight ticket from United Kingdom to San Diego
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to San Diego?
If you are unable to visit San Diego during the month of March, then departing from United Kingdom during the month February is also very affordable. Most momondo users find prices during this month for around $652.
What is the cheapest day to depart on your flight to San Diego?
The cheapest day to depart from United Kingdom to San Diego is on a Wednesday. Travelers who choose to depart for San Diego on a Wednesday will often find tickets for as low as $699. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $844. These prices are subject to change though, so be sure to set up a Price Alert for flights to San Diego.
What is the cheapest time of day to depart on your flight to San Diego?
The cheapest time of day to fly to San Diego is in the afternoon when flights can be purchased for as low as $727. Flights at noon are often more expensive with an average ticket price of $800.
What is the cheapest United Kingdom to San Diego flight route?
Fly from London Heathrow to San Diego for the best United Kingdom - San Diego flight prices
How far in advance should I book a flight to San Diego?
You are more likely to see cheaper flights to San Diego from United Kingdom when booking 13 weeks ahead of your departure date. In general, you can expect to find flights to San Diego for around $766 when searching 13 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Diego from United Kingdom for as low as $665 on momondo.
What cabin class options are available on United Kingdom to San Diego flights?
There are 3 cabin classes available to choose from on United Kingdom to San Diego flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from United Kingdom to San Diego?
WestJet, Aer Lingus, and British Airways are the most popular carriers operating from United Kingdom to San Diego
What airlines fly to San Diego?
British Airways, American Airlines and United Airlines are the top three most popular airlines that fly to San Diego from United Kingdom according to our data. British Airways is the first choice among our users, with 58% of people opting to fly with this airline when traveling to San Diego. Keep in mind that there are 4 different airlines that fly to San Diego on a routine basis, so you have a few additional options to choose from.
How many flights depart from United Kingdom to San Diego on average per day?
As of June 2025, 6 flights take off from United Kingdom and land in San Diego each day. The most common flight departure time for this route is 2:00PM, with 61% of daily flights taking off in the afternoon.
How many flights depart from United Kingdom to San Diego on average per week?
As of June 2025, 45 flights take off from United Kingdom and land in San Diego each week. The most common flight departure day for this route is Mon, with 18% of weekly flights taking off on this day.
Cheap United Kingdom to San Diego flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from United Kingdom to San Diego
Best Price Found | $318 |
|---|---|
Fastest flight time | 11h 05m |
Direct flights | Mon, Tue, Thu, Fri, Sat and Sun |
Airports in San Diego | 1 airport |
When did momondo last update prices for flights from United Kingdom to San Diego Airport?
Prices for flights from United Kingdom to San Diego Airport were last updated today.
How many operators does momondo search for flights from United Kingdom to San Diego Airport?
There are 4 operators available for flights from United Kingdom to San Diego Airport as of June 2025.
How old do you have to be to fly from United Kingdom to San Diego Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from United Kingdom to San Diego Airport.
What documentation or ID do you need to fly to San Diego Airport?
The required travel and health documents for your San Diego Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at San Diego Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from United Kingdom to San Diego?
Based on momondo bookings for flights between United Kingdom and San Diego, the leading plane model is Boeing 787-8 Dreamliner, making up 51.66% of the total bookings. Other popular models include Boeing 777-300ER with 23.21%, Airbus A350-1000 with 11.79%, and Boeing 777-300 with 6.84%.
Best airlines flying from United Kingdom to San Diego
Compare and see reviews for airlines that fly from United Kingdom to San Diego with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $523 | Free Cancellation | Rating 7.4 8,801 reviews | |||
| PriceFrom $539 | Free Cancellation | Rating 6.6 7,019 reviews | |||
| PriceFrom $563 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $576 | Free Cancellation | Rating 7.0 2,778 reviews |
Traveling to a place near San Diego?
Book flights to San Diego if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from United Kingdom to San Diego?
To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to San Diego from United Kingdom.
Can I find flights from United Kingdom to San Diego with flexible booking policies on momondo?
momondo does allow users to show only those flights to San Diego from United Kingdom which offer a flexible booking policy as well as other useful filters and features.
How can momondo help me find flights from United Kingdom to San Diego?
Once you have performed a search for United Kingdom to San Diego flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.
I’m not ready to book a flight from United Kingdom to San Diego right now. Can momondo alert me if prices change?
Yes momondo offers price alerts on flights to San Diego from United Kingdom. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.