Cheap flights from San José to London from £276

SJO — LON
9 Dec — 16 Dec1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from San José Juan Santamaria Intl to London are usually found in February or April, booked 79 days in advance, depart on a Wednesday or Thursday and return on a Monday

Cheap flight deals from San José to London

Enter your travel dates to find the best prices.

Cheapest flights from San José to London

Sun 8/1119:30 -
1 stop15h 05m
Tue 17/1108:40 -
1 stop14h 50m
Deal found 4/11£588
Sun 8/1118:20 -
2 stops16h 40m
Mon 23/1120:25 -
1 stop27h 05m
Deal found 6/11£589
Sun 8/1119:30 -
1 stop19h 20m
Thu 26/1110:00 -
2 stops18h 15m
Deal found 8/11£593
Mon 9/1114:46 -
2 stops19h 19m
Thu 26/1110:00 -
2 stops18h 15m
Deal found 8/11£594
Sun 8/1117:55 -
2 stops16h 40m
Thu 26/1110:00 -
2 stops18h 15m
Deal found 8/11£594
Wed 11/1119:30 -
1 stop17h 45m
Mon 23/1110:50 -
1 stop17h 25m
Deal found 5/11£597
Thu 12/1118:20 -
1 stop16h 15m
Mon 23/1108:55 -
1 stop19h 20m
Deal found 5/11£598
Mon 9/1114:46 -
2 stops19h 19m
Wed 25/1110:50 -
1 stop17h 25m
Deal found 8/11£599
Sun 8/1117:55 -
2 stops16h 40m
Wed 25/1112:40 -
1 stop15h 35m
Deal found 8/11£600
Sat 14/1118:20 -
1 stop21h 05m
Wed 2/1206:30 -
1 stop17h 00m
Deal found 7/11£603
Thu 26/1118:20 -
1 stop15h 25m
Sat 5/1210:00 -
2 stops18h 17m
Deal found 5/11£608
Fri 6/1118:20 -
1 stop15h 25m
Sun 15/1110:00 -
2 stops18h 15m
Deal found 6/11£609

Find flight deals from San José to London

Round-trip from

£585

One-way from

£276

Popular in

July

Cheapest in

February

Average price

£648

Good round-trip deal

£899 or less

Good one-way deal

£484 or less
KLM
  • KLM
  • 30/1-9/2
  • 2 total stops
  • 30h 07m total
  • San José to London
JetBlue
  • JetBlue
  • 23/1-31/12
  • 1 total stop
  • 27h 31m total
  • San José to London
Highest demand for flights based on searches. 14% potential increase in price (£86 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£12 potential savings vs. average return price).
Average for round-trip flights in November 2026
Price to beat on a round-trip flight from San José Juan Santamaria Intl to London (LON).
Price to beat on a one-way flight from San José Juan Santamaria Intl to London (LON).

Cheapflights Fare Finder

 
Use the filters below to find and compare flights from San José to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

San JoséLondon

SJO San José Juan Santamaria Intl - LHR London Heathrow

SJOLHR

San José Juan Santamaria Intl

Mon 1/2

23:59-21:40

1 stop15h 41m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£287

San JoséLondon

SJO San José Juan Santamaria Intl - LHR London Heathrow

SJOLHR

San José Juan Santamaria Intl

Tue 23/2

23:59-21:40

1 stop15h 41m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£287

San JoséLondon

SJO San José Juan Santamaria Intl - LHR London Heathrow

SJOLHR

San José Juan Santamaria Intl

Wed 17/3

22:59-21:40

1 stop16h 41m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£341

San JoséLondon

SJO San José Juan Santamaria Intl - LHR London Heathrow

SJOLHR

San José Juan Santamaria Intl

Fri 5/3

06:00-10:50

2 stops22h 50m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£375

San JoséLondon

SJO San José Juan Santamaria Intl - LHR London Heathrow

SJOLHR

San José Juan Santamaria Intl

Wed 7/4

23:50-20:45

1 stop13h 55m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£400

San JoséLondon

SJO San José Juan Santamaria Intl - LCY London City

SJOLCY

San José Juan Santamaria Intl

Tue 6/4

14:42-17:20

2 stops19h 38m

London City

Wed 31/12

00:00-17:00

Nonstop0h 00m

£419

San JoséLondon

SJO San José Juan Santamaria Intl - LHR London Heathrow

SJOLHR

San José Juan Santamaria Intl

Sat 17/4

13:20-13:15

1 stop16h 55m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£420

San JoséLondon

SJO San José Juan Santamaria Intl - LCY London City

SJOLCY

San José Juan Santamaria Intl

Tue 26/1

19:30-17:20

1 stop15h 50m

London City

Wed 31/12

00:00-17:00

Nonstop0h 00m

£425

San JoséLondon

SJO San José Juan Santamaria Intl - LCY London City

SJOLCY

San José Juan Santamaria Intl

Tue 8/12

19:30-18:25

1 stop16h 55m

London City

Wed 31/12

00:00-17:00

Nonstop0h 00m

£427

San JoséLondon

SJO San José Juan Santamaria Intl - LHR London Heathrow

SJOLHR

San José Juan Santamaria Intl

Sun 2/5

13:20-13:15

1 stop16h 55m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£427

Flights are sorted by cheapest return flights first.

Deals found on 8/11

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from San José to London

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

Cheapflights Insights

Everything you need to know about your flight from San José to London

What is the cheapest month to book a flight from San José to London?

Currently, February is the cheapest month in which you can book a flight from San José to London (average of £601). Flying from San José to London in July is currently the most expensive (average of £878). 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.

What is the cheapest time of day to fly from SJO to LON?

When flying from San José to London, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost for a return flight from San José to London?

Airfare is typical for this route at the moment.
San José to London flights typically cost between £584 and £765 in January.
The cheapest return price found within the last 5 days was £585 on KLM (30 Jan–8 Feb).

What’s the top stopover airport for flights from San José to London?

Paris (CDG) – chosen by Cheapflights users on 38% of one-stop itineraries from San José to London on Cheapflights.

What’s the cheapest stopover airport for flights from San José to London?

Amsterdam (AMS) is the most affordable one-stop option, with an average return flight price of £645.

What’s the fastest stopover option from San José to London?

Flights via Paris (CDG) have the shortest average one-way travel time for one-stop routes: 13h 55m.

Which airport typically offers the quickest stopover for flights from San José to London?

Flights via Paris (CDG) offer the fastest connection on this route, with an average stopover time of 1h 35m.

How often are flights from San José to London delayed?

About 17% of weekly flights between San José and London have experienced delays in the past year, with the average delay time being 189 minutes.

What is the most punctual flight time for San José to London flights?

Historically, flights departing in the evening are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Tuesday tends to have the lowest number of delays on this route, whereas Saturday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on San José to London flights?

Over the past year, British Airways have had the lowest number of delays on this route, with just 17% of flights being delayed.

How far ahead should I book a flight from San José to London?

The best time to book flights from San José to London is 34 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Reviews of airlines servicing London

Read through reviews of airlines operating flights from San José to London, such as KLM,Air France, andIberia. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Comfort

7.7

Entertainment

7.2

Boarding

7.8

Crew

8.4

Overall

7.8

Food

7.4

Reviews

1 / 20
8.0
Excellent

Meghana,Aug 2026

QRO - ATL

It was a good one. They were very friendly and helpful

Comfort

7.7

Entertainment

7.2

Boarding

7.8

Crew

8.4

Overall

7.8

Food

7.4

Reviews

1 / 20
8.0
Excellent

Meghana,Aug 2026

QRO - ATL

It was a good one. They were very friendly and helpful

Comfort

7.7

Entertainment

7.2

Boarding

7.8

Crew

8.4

Overall

7.8

Food

7.4

Reviews

1 / 20
8.0
Excellent

Meghana,Aug 2026

QRO - ATL

It was a good one. They were very friendly and helpful

Comfort

7.7

Entertainment

7.2

Boarding

7.8

Crew

8.4

Overall

7.8

Food

7.4

Reviews

1 / 20
8.0
Excellent

Meghana,Aug 2026

QRO - ATL

It was a good one. They were very friendly and helpful

Comfort

7.7

Entertainment

7.2

Boarding

7.8

Crew

8.4

Overall

7.8

Food

7.4

Reviews

1 / 20
8.0
Excellent

Meghana,Aug 2026

QRO - ATL

It was a good one. They were very friendly and helpful

Related info for your journey

  • What airport do you fly from for flights from San José to London?

    For a flight from San José to London, you will be flying from Juan Santamaria Intl. San José Juan Santamaria Intl (SJO) is just 8.8 mi from the center of the city. Juan Santamaria Intl is the only San José airport and it handles 1 outbound flight to London per day. 2 airlines have flights to London from San José Juan Santamaria Intl on a regular basis.

  • How long is the flight from San José to London?

    Airlines like KLM, JetBlue, and Air Europa fly from San José to London in about 14h 56m. The time it takes to get you to your destination can typically vary by up to 3h 52m. San José and London are separated by a distance of 5407 mi. Both multi-stop and direct flights can be found to your destination and back.

  • What are the cheapest airlines flying from San José to London round-trip?

    Our cheapest airline available from San José to London is KLM. Our recent data shows that you can find tickets from as low as £567 on this airline. An additional option worth looking into is Air France, starting at £572. KLM is priced at 20% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from San José to London one-way?

    To fly one-way, consider booking your trip with KLM, which is currently one of the cheapest options available, starting at £396. American Airlines flights start at £420 while deals on Air Canada start at £453 one-way.

  • What are the most popular routes from San José to London?

  • What are the cheapest flights from San José to London?

    While on average a flight from San José to London is generally £824, our data shows the cheapest flight currently is £482. When looking at the most popular route, (San José Juan Santamaria Intl - London Heathrow), you can expect to pay £549 for that flight.

  • Can I find deals for flights from San José to London that include hotel bookings?

    Yes. In addition to deals on San José to London flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from San José to London?

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

  • Can I find deals for business class flights from San José to London?

    Yes. Cheapflights offers flight deals from San José to London 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 San José to London?

    Currently, February is the cheapest month in which you can book a flight from San José to London (average of £601). Flying from San José to London in July is currently the most expensive (average of £878). 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

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Top 2 airlines flying from San José to London

AirlineCheapestAverageFlexibilityOn-time
KLMCheapest£567Average£759FlexibilityNo cancel feeOn-time75%
Search KLM flights
Air FranceCheapest£572Average£683FlexibilityNo cancel feeOn-time77%
Search Air France flights

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When you search for this flight from San José to London, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from San José to London?

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Can Cheapflights find flights from San José to London with no change fees?

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

Can Cheapflights notify me if prices for flights from San José to London become cheaper?

Yes, Cheapflights offers price alerts on San José to London flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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