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Cheap flights from the United Kingdom to San Jose, California from £367

LHR — SJC
23 Oct — 30 Oct1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from United Kingdom to San Jose

Enter your travel dates to find the best prices.

Cheapest flights from United Kingdom to San Jose

Mon 19/1017:00 -
1 stop35h 00m
Mon 2/1119:43 -
1 stop32h 37m
Deal found 21/9£423
Mon 19/1017:00 -
1 stop30h 52m
Mon 26/1013:31 -
1 stop15h 49m
Deal found 21/9£424
Sat 3/1017:00 -
1 stop13h 59m
Sat 10/1013:31 -
1 stop17h 34m
Deal found 19/9£425
Thu 19/1114:45 -
1 stop13h 59m
Mon 23/1113:28 -
1 stop14h 52m
Deal found 22/9£426
Thu 22/1017:00 -
1 stop13h 59m
Wed 4/1113:26 -
1 stop14h 54m
Deal found 20/9£427
Sat 3/1017:00 -
1 stop24h 41m
Sat 17/1010:37 -
1 stop20h 28m
Deal found 20/9£430
Thu 15/1017:00 -
1 stop24h 41m
Mon 19/1006:17 -
1 stop24h 48m
Deal found 22/9£431
Mon 28/917:00 -
1 stop28h 17m
Tue 13/1008:02 -
1 stop23h 03m
Deal found 20/9£432
Sun 4/1017:00 -
1 stop33h 01m
Thu 15/1013:31 -
1 stop17h 34m
Deal found 22/9£434
Fri 6/1108:40 -
2 stops40h 35m
Fri 13/1111:30 -
1 stop15h 10m
Deal found 22/9£437
Wed 4/1114:45 -
1 stop13h 59m
Thu 21/114:35 -
1 stop13h 45m
Deal found 21/9£438
Tue 3/1105:50 -
2 stops24h 18m
Tue 10/1111:30 -
2 stops20h 35m
Deal found 19/9£505

Find flight deals from United Kingdom to San Jose

Round-trip from

£423

One-way from

£367

Popular in

December

Cheapest in

January

Average price

£528
Alaska Airlines
  • Alaska Airlines
  • 19/10-2/11
  • 2 total stops
  • 67h 37m total
  • United Kingdom to San Jose
Search Deals
20/11-31/12
  • 20/11-31/12
  • 2 total stops
  • 38h 45m total
  • United Kingdom to San Jose
Search Deals
High demand for flights, 2% potential price rise
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£5 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2026
Search Deals

Cheapflights Fare Finder

 
Use the filters below to find and compare flights from the United Kingdom to San Jose that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonSan Jose

LHR London Heathrow - SJC San Jose

LHRSJC

London Heathrow

Tue 15/12

14:45-22:00

1 stop15h 15m

San Jose

Wed 31/12

00:00-09:00

Nonstop0h 00m

£373

LondonSan Jose

LHR London Heathrow - SJC San Jose

LHRSJC

London Heathrow

Thu 15/10

17:00-09:41

1 stop24h 41m

San Jose

Mon 19/10

06:17-15:05

1 stop24h 48m

£431

LondonSan Jose

LHR London Heathrow - SJC San Jose

LHRSJC

London Heathrow

Tue 20/10

17:00-22:59

1 stop13h 59m

San Jose

Mon 26/10

10:37-12:20

1 stop18h 43m

£438

LondonSan Jose

LHR London Heathrow - SJC San Jose

LHRSJC

London Heathrow

Tue 15/12

07:40-20:53

2 stops21h 13m

San Jose

Wed 31/12

00:00-09:00

Nonstop0h 00m

£441

LondonSan Jose

LHR London Heathrow - SJC San Jose

LHRSJC

London Heathrow

Sat 31/10

14:45-10:43

1 stop26h 58m

San Jose

Sun 17/1

11:39-12:20

1 stop16h 41m

£446

LondonSan Jose

LHR London Heathrow - SJC San Jose

LHRSJC

London Heathrow

Fri 6/11

14:45-09:43

1 stop26h 58m

San Jose

Sun 17/1

14:35-12:20

1 stop13h 45m

£446

LondonSan Jose

LHR London Heathrow - SJC San Jose

LHRSJC

London Heathrow

Sat 31/10

14:45-10:43

1 stop26h 58m

San Jose

Wed 20/1

18:04-12:20

1 stop34h 16m

£446

LondonSan Jose

LHR London Heathrow - SJC San Jose

LHRSJC

London Heathrow

Sat 7/11

14:45-20:44

1 stop13h 59m

San Jose

Sat 14/11

19:43-12:20

1 stop32h 37m

£446

LondonSan Jose

LHR London Heathrow - SJC San Jose

LHRSJC

London Heathrow

Mon 15/2

14:45-09:16

1 stop26h 31m

San Jose

Sun 28/2

10:03-12:20

1 stop18h 17m

£448

LondonSan Jose

LHR London Heathrow - SJC San Jose

LHRSJC

London Heathrow

Mon 15/2

06:30-16:57

2 stops18h 27m

San Jose

Sun 28/2

17:05-16:30

1 stop15h 25m

£456

Flights are sorted by cheapest return flights first.

Deals found on 19/9

Showing 1-10 of 40 resultsSorted by cheapest first
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Best time to book a flight from United Kingdom to San Jose

Have a flexible travel schedule? Discover the best time to fly to San Jose from United Kingdom with our price prediction graph.
Estimated return price

Cheapflights Insights

Everything you need to know about your flight from the United Kingdom to San Jose

What is the cheapest month to book a flight from United Kingdom to San Jose, California?

Currently, January is the cheapest month in which you can book a flight from United Kingdom to San Jose, California (average of £477). Flying from United Kingdom to San Jose, California in April is currently the most expensive (average of £656). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How far ahead should I book a flight from United Kingdom to San Jose, California?

The price you pay for your flight from United Kingdom to San Jose, California may vary depending on when you book. For the best chance of a lower fare, look to book 81 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Reviews of airlines servicing San Jose

Get a feel of what it's like to fly with Alaska Airlines,KLM, andUnited Airlines from the United Kingdom to San Jose by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
7.9
Good
12,960 reviews
Check prices

Food

7.0

Overall

7.9

Crew

8.5

Comfort

7.8

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Chris,Aug 2026

GEG - SFO

Our flight was delayed multiple times over the course of the day for a total of almost ten hours. It was supposed to be a two-hour flight from San Francisco to Spokane. It turned into a nightmare of waiting all day in the airport, not knowing whether we would fly or not, whether we would miss my son's wedding and lose the expenses already incurred for car rental and accommodations. The Alaska staff seemed clueless and never gave us any convincing or definitive information. The airline offered food vouchers and discounts on future flights to make up for the trouble. However, the information about these concessions was not timely, nor were the vouchers themselves very useful. We were a family group of four people. The airline decided to give us one food voucher for $96, which is barely enough for four to get a sandwich and a drink each. Only by persistently addressing the airport food retailers were we able to get anything at all. Then, taking the exact opposite approach, the airline sent me, the original purchaser of all four tickets and the only email account they had, four vouchers for $150 each in the names of each of the four passengers. So, any one of us could get a discount on a future flight with Alaska in that amount. But I originally paid for all the tickets. It makes no sense, except to suggest that Alaska chooses the way to distribute vouchers that seems most likely to minimize the probability that they will be utilized. In my opinion, I should be offered a total refund for the ordeal we were forced to endure or at least a discount voucher for the entire $600.
Alaska Airlines
7.9
Good
12,960 reviews
Alaska Airlines
7.9
Good
12,960 reviews
Check prices

Food

7.0

Overall

7.9

Crew

8.5

Comfort

7.8

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Chris,Aug 2026

GEG - SFO

Our flight was delayed multiple times over the course of the day for a total of almost ten hours. It was supposed to be a two-hour flight from San Francisco to Spokane. It turned into a nightmare of waiting all day in the airport, not knowing whether we would fly or not, whether we would miss my son's wedding and lose the expenses already incurred for car rental and accommodations. The Alaska staff seemed clueless and never gave us any convincing or definitive information. The airline offered food vouchers and discounts on future flights to make up for the trouble. However, the information about these concessions was not timely, nor were the vouchers themselves very useful. We were a family group of four people. The airline decided to give us one food voucher for $96, which is barely enough for four to get a sandwich and a drink each. Only by persistently addressing the airport food retailers were we able to get anything at all. Then, taking the exact opposite approach, the airline sent me, the original purchaser of all four tickets and the only email account they had, four vouchers for $150 each in the names of each of the four passengers. So, any one of us could get a discount on a future flight with Alaska in that amount. But I originally paid for all the tickets. It makes no sense, except to suggest that Alaska chooses the way to distribute vouchers that seems most likely to minimize the probability that they will be utilized. In my opinion, I should be offered a total refund for the ordeal we were forced to endure or at least a discount voucher for the entire $600.
KLM
7.8
Good
1,575 reviews
Alaska Airlines
7.9
Good
12,960 reviews
Check prices

Food

7.0

Overall

7.9

Crew

8.5

Comfort

7.8

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Chris,Aug 2026

GEG - SFO

Our flight was delayed multiple times over the course of the day for a total of almost ten hours. It was supposed to be a two-hour flight from San Francisco to Spokane. It turned into a nightmare of waiting all day in the airport, not knowing whether we would fly or not, whether we would miss my son's wedding and lose the expenses already incurred for car rental and accommodations. The Alaska staff seemed clueless and never gave us any convincing or definitive information. The airline offered food vouchers and discounts on future flights to make up for the trouble. However, the information about these concessions was not timely, nor were the vouchers themselves very useful. We were a family group of four people. The airline decided to give us one food voucher for $96, which is barely enough for four to get a sandwich and a drink each. Only by persistently addressing the airport food retailers were we able to get anything at all. Then, taking the exact opposite approach, the airline sent me, the original purchaser of all four tickets and the only email account they had, four vouchers for $150 each in the names of each of the four passengers. So, any one of us could get a discount on a future flight with Alaska in that amount. But I originally paid for all the tickets. It makes no sense, except to suggest that Alaska chooses the way to distribute vouchers that seems most likely to minimize the probability that they will be utilized. In my opinion, I should be offered a total refund for the ordeal we were forced to endure or at least a discount voucher for the entire $600.
United Airlines
7.4
Good
10,226 reviews
Alaska Airlines
7.9
Good
12,960 reviews
Check prices

Food

7.0

Overall

7.9

Crew

8.5

Comfort

7.8

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Chris,Aug 2026

GEG - SFO

Our flight was delayed multiple times over the course of the day for a total of almost ten hours. It was supposed to be a two-hour flight from San Francisco to Spokane. It turned into a nightmare of waiting all day in the airport, not knowing whether we would fly or not, whether we would miss my son's wedding and lose the expenses already incurred for car rental and accommodations. The Alaska staff seemed clueless and never gave us any convincing or definitive information. The airline offered food vouchers and discounts on future flights to make up for the trouble. However, the information about these concessions was not timely, nor were the vouchers themselves very useful. We were a family group of four people. The airline decided to give us one food voucher for $96, which is barely enough for four to get a sandwich and a drink each. Only by persistently addressing the airport food retailers were we able to get anything at all. Then, taking the exact opposite approach, the airline sent me, the original purchaser of all four tickets and the only email account they had, four vouchers for $150 each in the names of each of the four passengers. So, any one of us could get a discount on a future flight with Alaska in that amount. But I originally paid for all the tickets. It makes no sense, except to suggest that Alaska chooses the way to distribute vouchers that seems most likely to minimize the probability that they will be utilized. In my opinion, I should be offered a total refund for the ordeal we were forced to endure or at least a discount voucher for the entire $600.
Virgin Atlantic
7.4
Good
694 reviews
Alaska Airlines
7.9
Good
12,960 reviews
Check prices

Food

7.0

Overall

7.9

Crew

8.5

Comfort

7.8

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Chris,Aug 2026

GEG - SFO

Our flight was delayed multiple times over the course of the day for a total of almost ten hours. It was supposed to be a two-hour flight from San Francisco to Spokane. It turned into a nightmare of waiting all day in the airport, not knowing whether we would fly or not, whether we would miss my son's wedding and lose the expenses already incurred for car rental and accommodations. The Alaska staff seemed clueless and never gave us any convincing or definitive information. The airline offered food vouchers and discounts on future flights to make up for the trouble. However, the information about these concessions was not timely, nor were the vouchers themselves very useful. We were a family group of four people. The airline decided to give us one food voucher for $96, which is barely enough for four to get a sandwich and a drink each. Only by persistently addressing the airport food retailers were we able to get anything at all. Then, taking the exact opposite approach, the airline sent me, the original purchaser of all four tickets and the only email account they had, four vouchers for $150 each in the names of each of the four passengers. So, any one of us could get a discount on a future flight with Alaska in that amount. But I originally paid for all the tickets. It makes no sense, except to suggest that Alaska chooses the way to distribute vouchers that seems most likely to minimize the probability that they will be utilized. In my opinion, I should be offered a total refund for the ordeal we were forced to endure or at least a discount voucher for the entire $600.
British Airways
6.7
Okay
8,226 reviews
Alaska Airlines
7.9
Good
12,960 reviews
Check prices

Food

7.0

Overall

7.9

Crew

8.5

Comfort

7.8

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Chris,Aug 2026

GEG - SFO

Our flight was delayed multiple times over the course of the day for a total of almost ten hours. It was supposed to be a two-hour flight from San Francisco to Spokane. It turned into a nightmare of waiting all day in the airport, not knowing whether we would fly or not, whether we would miss my son's wedding and lose the expenses already incurred for car rental and accommodations. The Alaska staff seemed clueless and never gave us any convincing or definitive information. The airline offered food vouchers and discounts on future flights to make up for the trouble. However, the information about these concessions was not timely, nor were the vouchers themselves very useful. We were a family group of four people. The airline decided to give us one food voucher for $96, which is barely enough for four to get a sandwich and a drink each. Only by persistently addressing the airport food retailers were we able to get anything at all. Then, taking the exact opposite approach, the airline sent me, the original purchaser of all four tickets and the only email account they had, four vouchers for $150 each in the names of each of the four passengers. So, any one of us could get a discount on a future flight with Alaska in that amount. But I originally paid for all the tickets. It makes no sense, except to suggest that Alaska chooses the way to distribute vouchers that seems most likely to minimize the probability that they will be utilized. In my opinion, I should be offered a total refund for the ordeal we were forced to endure or at least a discount voucher for the entire $600.

Related info for your journey

  • What airport do you fly into for flights to San Jose from United Kingdom?

    San Jose (SJC) is the airport you will fly into if you book a flight from United Kingdom to San Jose. It is only a 2.9 mi journey from San Jose (SJC) to San Jose’s city center.

  • How long is the flight from United Kingdom to San Jose, California?

    Departing from United Kingdom to San Jose, California will take you 24h 18m. The distance between United Kingdom and San Jose, California is about 5206 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the most popular routes from United Kingdom to San Jose, California?

    The most popular route from United Kingdom to San Jose, California is London Heathrow - San Jose. You may also consider London Gatwick - San Jose or London Stansted - San Jose.

  • Can I find deals for flights from United Kingdom to San Jose that include hotel bookings?

    Yes. In addition to deals on United Kingdom to San Jose flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from United Kingdom to San Jose?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from United Kingdom to San Jose.

  • Can I find deals for business class flights from United Kingdom to San Jose?

    Yes. Cheapflights offers flight deals from United Kingdom to San Jose by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from United Kingdom to San Jose, California?

    Currently, January is the cheapest month in which you can book a flight from United Kingdom to San Jose, California (average of £477). Flying from United Kingdom to San Jose, California in April is currently the most expensive (average of £656). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top 3 airlines flying from United Kingdom to San Jose

AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£428Average£596FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Virgin AtlanticCheapest£433Average£666FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
KLMCheapest£606Average£708FlexibilityNo cancel feeOn-time75%
Search KLM flights

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Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from United Kingdom to San Jose. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to San Jose from United Kingdom.

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Need flexible booking options for your flight to San Jose from United Kingdom? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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