$328 Find Cheap Flights from San Diego to the United Kingdom

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Diego to the United Kingdom departing on 10/12. 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.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to the United Kingdom

Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 24% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Booking Insights
Flight Deals

Cheap Flights from San Diego to the United Kingdom

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
London
London3 stops$1,011
Edinburgh
Edinburgh1 stop$879
Manchester
Manchester2 stops$801
Birmingham
Birmingham2 stops$840
Inverness
Inverness1 stop$754
Bristol
Bristol1 stop$1,244
Leeds
Leeds2 stops$918
Liverpool
Liverpool2 stops$1,348
Cardiff
Cardiff1 stop$1,041
London
London3 stops$1,011
Edinburgh
Edinburgh1 stop$879
Manchester
Manchester2 stops$801
Birmingham
Birmingham2 stops$840
Inverness
Inverness1 stop$754
Bristol
Bristol1 stop$1,244
Leeds
Leeds2 stops$918
Liverpool
Liverpool2 stops$1,348
Cardiff
Cardiff1 stop$1,041

Book Cheap San Diego to the United Kingdom Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Diego to the United Kingdom that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from San Diego to the United Kingdom

Wed, Oct 14 - Wed, Oct 21
British Airways Logo
7:40 pm - 9:30 pm
SAN
-
INV
17h 50m
1 stop
British Airways Logo
7:35 am - 2:55 pm
INV
-
SAN
15h 20m
1 stop
$754British Airways
Wed, Oct 14 - Wed, Oct 21
British Airways Logo
7:40 pm - 9:30 pm
SAN
-
INV
17h 50m
1 stop
British Airways Logo
7:35 am - 5:50 pm
INV
-
SAN
18h 15m
1 stop
$755British Airways
Sun, Sep 20 - Wed, Sep 30
Delta Logo
10:10 pm - 12:45 pm
SAN
-
INV
30h 35m
2 stops
Delta Logo
1:15 pm - 11:50 am
INV
-
SAN
30h 35m
1 stop
$770Delta
Sun, Aug 23 - Wed, Aug 26
United Airlines Logo
4:24 pm - 10:25 am
SAN
-
MAN
34h 01m
2 stops
United Airlines Logo
9:00 am - 11:15 am
MAN
-
SAN
34h 15m
2 stops
$801United Airlines
Mon, Sep 21 - Fri, Oct 2
Iberia Logo
7:40 pm - 5:35 pm
SAN
-
EDI
13h 55m
1 stop
Iberia Logo
11:25 am - 10:34 pm
EDI
-
SAN
19h 09m
1 stop
$885Iberia
Sun, Sep 20 - Thu, Oct 1
United Airlines Logo
6:30 am - 10:10 am
SAN
-
GLA
19h 40m
2 stops
United Airlines Logo
2:00 pm - 12:22 pm
GLA
-
SAN
30h 22m
1 stop
$886United Airlines
Mon, Sep 21 - Fri, Oct 2
Iberia Logo
7:40 pm - 8:30 pm
SAN
-
EDI
16h 50m
1 stop
Iberia Logo
11:25 am - 10:34 pm
EDI
-
SAN
19h 09m
1 stop
$886Iberia
Wed, Sep 23 - Tue, Sep 29
Delta Logo
2:00 pm - 11:50 am
SAN
-
EDI
13h 50m
1 stop
Delta Logo
11:20 am - 8:41 pm
EDI
-
SAN
17h 21m
1 stop
$893Delta
Wed, Sep 23 - Mon, Dec 14
Lufthansa Logo
2:24 pm - 6:40 pm
SAN
-
LHR
20h 16m
2 stops
Lufthansa Logo
7:30 pm - 3:45 pm
LHR
-
SAN
28h 15m
2 stops
$1,017Lufthansa
Wed, Sep 23 - Wed, Oct 14
Lufthansa Logo
2:24 pm - 5:55 pm
SAN
-
LCY
19h 31m
2 stops
Lufthansa Logo
6:30 pm - 3:25 pm
LCY
-
SAN
28h 55m
2 stops
$1,033Lufthansa
Booking Insights

KAYAK's insights & trends for San Diego to the United Kingdom flights

Get data-powered insights and trends into flights from San Diego to the United Kingdom to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest San Diego to the United Kingdom flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to the United Kingdom from San Diego found in the last 7 days was to London, at $853 round-trip. The most popular route is from San Diego (SAN) to London Heathrow Airport (LHR), and the cheapest round-trip airline ticket found on this route in the last 7 days was $853.

What is the cheapest time of day to fly to the United Kingdom?

The average price for all round-trip flights from San Diego to the United Kingdom depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to the United Kingdom is generally in the evening, when round-trip flights cost $860 on average. Morning departures are around 100% cheaper than evening flights, on average. The most expensive time of day to fly to the United Kingdom is generally at night, which is peak travel time and where the average cost of a ticket is $914.

Can I save money by flying with a layover from San Diego to the United Kingdom?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $1,072 on average.

What is the cheapest month to fly from San Diego to the United Kingdom?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Diego to the United Kingdom, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from San Diego to the United Kingdom is May, when tickets cost $102 (return) on average. On the other hand, the most expensive months are August and September, when the average cost of round-trip tickets is $1,489 and $1,185 respectively.

What’s the cheapest day of the week to fly from San Diego to United Kingdom?

The average price of all round-trip flights from San Diego to the United Kingdom clicked on KAYAK for each day over the last 12 months.

When flying from San Diego to United Kingdom, you should consider leaving on a Wednesday and avoid Thursdays if you are looking for the best rates. For your return to San Diego, you’ll find the best rates on Tuesdays and the most expensive ones on Saturdays.

How far in advance should I book a flight from San Diego to the United Kingdom?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from San Diego to the United Kingdom, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from San Diego to the United Kingdom, you should book around 2 weeks before departure, which saves you about 23% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 15 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$328
Best time to beat the crowds but there is an average 3% increase in price.
Most popular time to fly and prices are also 16% lower on average.
Flight from San Diego to Edinburgh

FAQs - booking United Kingdom flights

  • How does KAYAK find such low prices on flights from San Diego to the United Kingdom?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from San Diego to the United Kingdom.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from San Diego to the United Kingdom?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from San Diego to the United Kingdom is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from San Diego to the United Kingdom?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from San Diego to the United Kingdom with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from San Diego to the United Kingdom?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from San Diego to the United Kingdom up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights to the United Kingdom

  • Looking for a cheap flight? 25% of our users found tickets from San Diego to the following destinations at these prices or less: London $450 one-way - $994 round-trip

Reviews of the top 5 airlines serving from San Diego to the United Kingdom

 
Need help choosing which airline to fly with from San Diego to the United Kingdom? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8452 reviews
7.8Entertainment
8.5Crew
7.2Food
8.1Boarding
7.8Comfort
Airline reviews

While they turned off most cabin lights to allow people to sleep, I was bothered by how bright the side lights still were. It was still quite bright for me in a window seat, when I wish I could have slept!

10.0 ExcellentTeresa, Apr 2026
SMF - LAX
Read more Delta reviews

While they turned off most cabin lights to allow people to sleep, I was bothered by how bright the side lights still were. It was still quite bright for me in a window seat, when I wish I could have slept!

Generally on time departures and arrivals, clean planes, sky miles membership provides great benefits (complimentary upgrades, etc).

N Everything was perfect from boarding to assistance to baggage in Tampa

Loved the crew! Sucks that we went from 1 hour and 8 minute layover to a 3 hour layover. But weather sucks like that.

Fast, lovely scenery, great info on the Delta flight screen about landmarks we were flying over. Great landing!

Long flight but comfortable and not freezing as I have experienced on Hawaiian flights to the islands. They gave us blankets just in case. Nice touch.

I took seat 15A in anticipation of window seat, there is no window.

Flight late, the waited for a long time for “personal” to arrive at gate to dock the plane in Rochester. So annoying. This flight was expected, why aren’t personel available for the jet bridge?

My recent experience was excellent on Delta! I flew with Delta Comfort and I was really comfortable in my seat. I enjoyed the in-flight service. The flight attendants were so friendly and hospitable. I love the snack on the flight as well. This was my first time flying on Delta and I will definitely consider flying with them again.

My flight was canceled on Sunday. Rebooking took three hours. Had to pay for accommodations another night. New flight was delayed for 5 hours, all that was sent was a 12 dollar food voucher, which doesn’t tell you how to use it. Then when we landed we had to sit on the plane for an hour before we could get off.

My service dog and I were asked to deplane just before they closed the door - clearly very last minute they couldn’t find the documentation that I have filled out many many times before that is for flying service animals. I purposely purchase 3seats (a whole row) since he is large and not all passengers want to sit next to a dog on a cross country flight. The plane departed with my husband on it!!! They made me fill out a hard copy of the same form and had to reschedule me on a later flight where they could find 3 seats together!! I’ve done this so many times before - clearly the error was on their part in a technology glitch - but really people - do better!! Very traumatic - and my husband had to wait for us when he landed ….so bad. Poor pup was confused and tired.

Late plane. Only one crew on the ground so we b had to wait for Denver flight to come in, board, and depart. At 78 yrs of age I was not pleased trying to get my connection. What really made me angry was the notification you sent me to hurry up or I would miss my connection. Why tell me to hurry up when you got me in late. It was not a good way of treating customers.

My flight time was changed without any notification to me which ruined my time sensitive plans so I ended up completely changing my travel plans and no reimbursement.

No screens or meal options. Freezing cold. Dirty seats. Left late.

I liked that my son and I were reseated next to each other (we had different bookings). I liked that it was a directg flight and mostly on time. I liked that you provided pillows and blankets. Flight attendants were generally courteous. The messaging through wifi did not work well. The food was not good. Seats are very narrow and I felt slightly claustraphobic in the window seat.

Some crew were unfriendly or in some cases just straight up rude.

Booked through Kayak Business, had a seat in middle and towards back due to booking rate, not comfortable.

Outstanding service, efficient & friendly crew, flight was safe, comfortable & on time

United Airline crews were very friendly and very attentive. 12 hours flight was gone like in a shorter one.

Food was surprisingly delicious. Space in the seat is horrible when the seating front is reclined. Movie offerings were terrible. Crew was friendly and helpful.

Premium Economy Good crew, good service, excellent food. Seat back screen just not bright enough.

The crew was very attentive through out the flight. Seats were comfortable, nice flight bag with pillow and blanket. Food was okay, since it was a overnight flight seemed to go by fast.

Left early arrived early..right amount of talking from pilots..of course had to love the biscuit and water!

Boarding gate at LAX was too crowded—two gates next to one another

On time departure and early arrival. Flight attendant very nice.

The business class layout of chairs was weired. You are sitting directly across stranger.,

The SFO Lounge crew were amazing. The bartender Faris was great. Thanks!

Friendly crew is the only nice thing. Seats uncomfortable. Food and snacks horrible. Movies were the same as the first 10 hour flight two weeks before

Was not able to do a online check-in because the American Airlines system doesn't store our visa or other passport information, allowing us to have a trouble-free check-in. We were forced to have to check-in at the counter which Changes are upgrade status given that we were not able to check in much earlier.

Good flight, seated and had a water within 5 minutes. Crew was hospitable.

Food choices limited & not enticing Seats quite uncomfortable & difficult to control

Definitely get premium economy on a flight this long if you can. Your legs and while body will thank you.

Boarding was disorganized. The door to one to the toilets wouldn’t lock. The plane was shockingly cramped, and clearly used for domestic flights due to the menus for items to sell domestic travelers. United should be ashamed of its small seats, tiny unclean toilets, and money grubbing stance toward services, compared to Lufthansa, Emirates, and most international carriers United is awful.

Terrible. Lost our luggage for 4 days. Did not advise passengers there was a strike in Barcelona Airport and had zero personnel on hand at airport to advise passengers on where to go to file claims. We had to fend for ourselves. No assistance at all other than an online claims submission process that we had to find out about on our own.

Lufthansa cancelled our flight from Los Angeles to Naples Italy on March 10 for scheduled flight on March 12 Very stressful experience trying to arrange alternatives. Will never fly again with Lufthansa

Service and food were excellent. Incredibly friendly and competent staff. Flight was delayed over and hour and I had to run between terminals to get my connecting flight.

Late flight Delays Poor service Poor staff Worst airline ever

Lufthansa still has a good level of quality compared to US airlines, especially with respect to (1) food quality - actually tasty, (2) good French red wine - free, (3) good movie selection. Also my ticket price includes 1 free check-in luggage, while some other budget airlines sneak in an extra $150 for a checkin.

The food could be better, more snacks. And have some plugs to chargue the phone.

Everything was really great just The aircraft was too old and sounded it will break during takeoff

Canceled flight late London to Florence. Help at airport very poor. Treated poorly. Had to sleep in the airport. Lost bags- still do not have them. Horrible. I should be reimbursed!

Boarding was orderly, pilot and flight attendants were nice, entertainment options were good, and low sodium meals were quite tasty.

Flight delayed, connection was not at gate listed and so missed, staff were rude at Heathrow, phone tree stupid and difficult, took me 21 actual hours to reach my destination. Almost lost my hotel reservation after walking in a strange city alone after midnight because they would not put me up in a hotel at sfo or heathrow. I will never fly BA again and will tell all people and Instagram followers never to fly BA.

Check-in in SAN was long. ORD was good. Flight delayed On board crew was ok. No warmth or personality. LHrR barely made connection

Wish the food and overall service was better. They treat Business class passengers same as economy

They had us seating down for one hour just waiting on the plane

Flying with BA is always a good experience—even in economy class. It is better if in business and first class. Timely, breeze through security and timely connections

The issue was not with BA it was with the link yoiu sent fopr booking the flight

Loved the boarding option from Business class lounge, experience on flight was excellent, plenty of good food choices

Awful it always is unfortunately is the only way to fly direct to london

Everything you need to know for your flight from San Diego to the United Kingdom

Information on your arrival and departure airports