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$423+ Cheap flights from San José (SJO) to London (LON)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/21. Fares are subject to change and may not be available on all flights or dates of travel.
SJO — LON
Apr 1 — Apr 81
Wed 4/1
Wed 4/8
1 adult, Economy
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Find cheap flights from San José to London with Cheapflights

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Cheapflights Tip: The best prices from San José Juan Santamaria Intl to London are usually found in February or October, booked 77 days in advance, depart on a Tuesday or Wednesday and return on a Monday

Cheap flight deals from San José to London

Cheapest flights from San José to London
Explore the most affordable flight options available from San José to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 2, 2026.

This KLM deal was found by Cheapflights users on 2/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/46:25 pm
SJO
-
LHR
1 stop30h 15m
Multiple Airlines
Wed 6/106:15 am
LHR
-
SJO
1 stop17h 45m
Multiple Airlines
Deal found 2/28$738
This British Airways deal was found by Cheapflights users on 2/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/16:15 pm
SJO
-
LHR
1 stop13h 15m
Multiple Airlines
Tue 3/316:15 am
LHR
-
SJO
1 stop15h 50m
Multiple Airlines
Deal found 2/27$739
This KLM deal was found by Cheapflights users on 2/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/32:25 pm
SJO
-
LHR
1 stop15h 15m
KLM
Mon 3/2310:00 am
LHR
-
SJO
1 stop14h 25m
KLM
Deal found 2/28$740
This KLM deal was found by Cheapflights users on 3/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/48:30 pm
SJO
-
LHR
1 stop16h 45m
KLM
Wed 4/151:25 pm
LHR
-
SJO
1 stop29h 31m
KLM
Deal found 3/1$741
This KLM deal was found by Cheapflights users on 2/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/177:00 am
SJO
-
LHR
1 stop18h 50m
KLM
Wed 3/253:50 pm
LHR
-
SJO
1 stop26h 05m
KLM
Deal found 2/26$745
This KLM deal was found by Cheapflights users on 2/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/26:25 pm
SJO
-
LHR
1 stop33h 20m
Multiple Airlines
Thu 6/117:45 pm
LHR
-
SJO
1 stop28h 15m
Multiple Airlines
Deal found 2/28$748
This KLM deal was found by Cheapflights users on 2/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/141:25 pm
SJO
-
LHR
1 stop16h 50m
Multiple Airlines
Fri 9/186:15 am
LHR
-
SJO
1 stop17h 45m
Multiple Airlines
Deal found 2/26$750
This KLM deal was found by Cheapflights users on 2/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/141:25 pm
SJO
-
LHR
1 stop34h 50m
Multiple Airlines
Fri 10/306:20 am
LHR
-
SJO
1 stop17h 30m
Multiple Airlines
Deal found 2/27$751
This British Airways deal was found by Cheapflights users on 3/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/66:15 pm
SJO
-
LHR
1 stop14h 05m
Multiple Airlines
Sun 4/196:15 am
LHR
-
SJO
1 stop15h 50m
Multiple Airlines
Deal found 3/1$754
This Expedia deal was found by Cheapflights users on 2/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/134:40 pm
SJO
-
LGW
1 stop35h 10m
Iberia
Mon 4/208:40 pm
LGW
-
SJO
1 stop25h 25m
Iberia
Deal found 2/27$755
This KLM deal was found by Cheapflights users on 3/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/211:21 pm
SJO
-
LHR
1 stop16h 54m
KLM
Thu 5/216:30 am
LHR
-
SJO
1 stop16h 50m
KLM
Deal found 3/1$758
This Expedia deal was found by Cheapflights users on 2/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/74:30 pm
SJO
-
LGW
1 stop20h 30m
Iberia
Tue 4/148:40 pm
LGW
-
SJO
1 stop25h 25m
Iberia
Deal found 2/26$760

Find flight deals from San José to London

Discover tips and strategies to find the most affordable flight options for your journey from San José (SJO) to London (LON). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated March 2, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$738
(KLM)

One-way from

$423
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$840
Provider with most accurate pricing for San José Juan Santamaria Intl-London (LON) flight deals.
Search Deals
Provider most trusted by Cheapflights users for San José Juan Santamaria Intl-London (LON) flights.
Search Deals
From San José Juan Santamaria Intl to London (LON)
Search Deals
One-way flight from San José Juan Santamaria Intl to London (LON)
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($117 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($20 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from San José to London that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 2, 2026.
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

San JoséLondon

SJO - LHR

SJOLHR

San José Juan Santamaria Intl

Tue 3/31

7:00 am-6:25 am

1 stop16h 25m

London Heathrow

Mon 4/20

3:15 pm-11:56 am

1 stop27h 41m

$813

San JoséLondon

SJO - LHR

SJOLHR

San José Juan Santamaria Intl

Mon 3/30

1:20 pm-1:15 pm

1 stop16h 55m

London Heathrow

Mon 4/20

3:15 pm-11:56 am

1 stop27h 41m

$813

San JoséLondon

SJO - LHR

SJOLHR

San José Juan Santamaria Intl

Wed 4/8

1:20 pm-1:15 pm

1 stop16h 55m

London Heathrow

Wed 4/15

3:15 pm-11:56 am

1 stop27h 41m

$860

San JoséLondon

SJO - LHR

SJOLHR

San José Juan Santamaria Intl

Wed 3/25

1:20 pm-11:40 am

1 stop16h 20m

London Heathrow

Tue 5/26

6:30 am-4:20 pm

1 stop16h 50m

$902

San JoséLondon

SJO - LHR

SJOLHR

San José Juan Santamaria Intl

Sat 5/16

2:40 pm-1:15 pm

1 stop15h 35m

London Heathrow

Sat 5/23

7:45 pm-5:20 pm

1 stop28h 35m

$905

San JoséLondon

SJO - LHR

SJOLHR

San José Juan Santamaria Intl

Mon 3/30

4:30 pm-6:55 pm

1 stop19h 25m

London Heathrow

Fri 4/17

6:15 am-3:05 pm

1 stop15h 50m

$952

San JoséLondon

SJO - LHR

SJOLHR

San José Juan Santamaria Intl

Sat 3/28

7:00 am-6:25 am

1 stop17h 25m

London Heathrow

Fri 4/3

11:15 am-9:15 pm

1 stop17h 00m

$1,001

San JoséLondon

SJO - LHR

SJOLHR

San José Juan Santamaria Intl

Thu 8/27

7:55 am-11:35 am

1 stop20h 40m

London Heathrow

Fri 9/11

4:40 pm-12:21 pm

2 stops26h 41m

$1,073

San JoséLondon

SJO - LHR

SJOLHR

San José Juan Santamaria Intl

Sat 8/29

8:45 am-2:10 pm

1 stop22h 25m

London Heathrow

Sat 9/12

10:00 am-7:37 pm

1 stop16h 37m

$1,073

San JoséLondon

SJO - LHR

SJOLHR

San José Juan Santamaria Intl

Fri 8/28

7:55 am-10:40 am

2 stops19h 45m

London Heathrow

Wed 9/9

1:40 pm-12:21 pm

1 stop29h 41m

$1,073

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/26

Showing 1-10 of 43 resultsSorted by cheapest first
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Compare providers for flights from San José to London

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San José to London in March.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
Trip.comPrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on San José-London flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San José-London flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San José-London flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San José-London flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San José-London flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

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

Use this chart to determine the optimal time to book a round-trip flight from San José to London. Price data was last updated on February 27, 2026.

The best time to book flights from San José to London is 77 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.

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

Currently, March is the cheapest month in which you can book a flight from San José to London (average of $551). Flying from San José to London in August is currently the most expensive (average of $777). 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?

Find hourly flight availability from San José to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 2, 2026.

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 often are flights from San José to London delayed?

About 23% of weekly flights between San José and London have experienced delays in the past year, with the average delay time being 211 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 last year, British Airways have had the lowest number of delays on this route, with just 23% of flights being delayed.

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to London. Reviews last updated March 2, 2026.
Read reviews from past customers who have flown KLM, Air France, and Air Canada from San José to London. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.7
Good
1,461 reviews

Food

7.3

Entertainment

7.1

Crew

8.4

Overall

7.7

Boarding

7.8

Comfort

7.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
KLM
7.7
Good
1,461 reviews
KLM
7.7
Good
1,461 reviews

Food

7.3

Entertainment

7.1

Crew

8.4

Overall

7.7

Boarding

7.8

Comfort

7.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
Air France
7.4
Good
1,541 reviews
KLM
7.7
Good
1,461 reviews

Food

7.3

Entertainment

7.1

Crew

8.4

Overall

7.7

Boarding

7.8

Comfort

7.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
Air Canada
7.1
Good
10,769 reviews
KLM
7.7
Good
1,461 reviews

Food

7.3

Entertainment

7.1

Crew

8.4

Overall

7.7

Boarding

7.8

Comfort

7.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
Iberia
7.0
Good
3,127 reviews
KLM
7.7
Good
1,461 reviews

Food

7.3

Entertainment

7.1

Crew

8.4

Overall

7.7

Boarding

7.8

Comfort

7.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
British Airways
6.7
Okay
7,775 reviews
KLM
7.7
Good
1,461 reviews

Food

7.3

Entertainment

7.1

Crew

8.4

Overall

7.7

Boarding

7.8

Comfort

7.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas

Related info for your journey

Find useful and relevant information for your journey from San José to London. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    Most people fly from San José Juan Santamaria Intl (SJO) if they book a flight from San José to London. On average, Juan Santamaria Intl has 0 outbound flights to London per day from 5 airlines. San José Juan Santamaria Intl is conveniently located just 8.8 mi from San José’s city center.

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

    Departing from San José to London will take you 16h 25m. The distance from San José to London is about 5407 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    According to our current data, British Airways ($592), Air France ($702), and Iberia ($726) offers the cheapest pricing from San José to London. British Airways is 31% cheaper than the average price of flights available within the next 90 days to this destination.

  • 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 vacation 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, March is the cheapest month in which you can book a flight from San José to London (average of $551). Flying from San José to London in August is currently the most expensive (average of $777). 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

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
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Alternative routes for San José to London

See prices for flight routes from nearby airports that may be better suited for you.
San José to Heathrow flights
San José to Gatwick flights

Top 5 airlines flying from San José to London

Discover the top 5 airlines that operate flights from San José to London. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 2, 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$592Average$741FlexibilityNo cancel feeOn-time70%
Air FranceCheapest$702Average$1,141FlexibilityNo cancel feeOn-time77%
IberiaCheapest$726Average$1,021FlexibilityNo cancel feeOn-time77%
KLMCheapest$732Average$867FlexibilityNo cancel feeOn-time75%
Air CanadaCheapest$935Average$991FlexibilityNo cancel feeOn-time67%

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