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Cheap flights from San José to London from £304

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San José to London departing on 4/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Cheap return flights

Enter your travel dates to find the best prices.
Iberia Logo
16:30 - 19:45
SJO
-
LHR
20h 15m
1 stop
Iberia Logo
18:45 - 15:05
LHR
-
SJO
27h 20m
1 stop
£552Iberia
Thu, 14 May - Thu, 21 May
Air France Logo
19:15 - 18:35
SJO
-
LHR
16h 20m
1 stop
Air France Logo
08:55 - 17:10
LHR
-
SJO
15h 15m
1 stop
£565Air France
Mon, 18 May - Fri, 29 May
Air France Logo
19:15 - 18:35
SJO
-
LHR
16h 20m
1 stop
Air France Logo
06:15 - 17:10
LHR
-
SJO
17h 55m
1 stop
£566Air France
Mon, 18 May - Fri, 29 May
Air France Logo
19:05 - 18:35
SJO
-
LHR
16h 30m
1 stop
Air France Logo
08:55 - 17:00
LHR
-
SJO
15h 05m
1 stop
£569Air France
Sun, 7 Jun - Sat, 13 Jun
Air France Logo
19:05 - 18:35
SJO
-
LHR
16h 30m
1 stop
Air France Logo
08:55 - 17:00
LHR
-
SJO
15h 05m
1 stop
£570Air France
Sun, 7 Jun - Sat, 13 Jun
KLM Logo
13:21 - 06:25
SJO
-
LHR
34h 04m
1 stop
KLM Logo
08:40 - 16:20
LHR
-
SJO
14h 40m
1 stop
£570KLM
Thu, 30 Apr - Thu, 7 May
KLM Logo
13:21 - 13:15
SJO
-
LHR
16h 54m
1 stop
KLM Logo
20:55 - 16:20
LHR
-
SJO
26h 25m
1 stop
£574KLM
Sat, 25 Apr - Wed, 6 May
KLM Logo
14:31 - 13:15
SJO
-
LHR
15h 44m
1 stop
KLM Logo
20:55 - 16:20
LHR
-
SJO
26h 25m
1 stop
£575KLM
Sat, 25 Apr - Wed, 6 May
Multiple Airlines Logo
14:31 - 13:15
SJO
-
LHR
15h 44m
1 stop
Multiple Airlines Logo
06:15 - 17:10
LHR
-
SJO
17h 55m
1 stop
£576Multiple Airlines
Sat, 25 Apr - Sat, 16 May
Multiple Airlines Logo
13:21 - 06:25
SJO
-
LHR
34h 04m
1 stop
Multiple Airlines Logo
08:55 - 17:10
LHR
-
SJO
15h 15m
1 stop
£576Multiple Airlines
Fri, 1 May - Sat, 16 May

KLM flights from San José to London Heathrow Airport

Our best KLM deals on San José to London Heathrow Airport flight tickets
KLM
30 Apr
SJO13:21San José Juan Santamaria Intl
34h 04m
1 stop
LHR06:25London Heathrow
7 May
LHR08:40London Heathrow
14h 40m
1 stop
SJO16:20San José Juan Santamaria Intl
£570
KLM
25 Apr
SJO13:21San José Juan Santamaria Intl
16h 54m
1 stop
LHR13:15London Heathrow
6 May
LHR20:55London Heathrow
26h 25m
1 stop
SJO16:20San José Juan Santamaria Intl
£574
KLM
25 Apr
SJO14:31San José Juan Santamaria Intl
15h 44m
1 stop
LHR13:15London Heathrow
6 May
LHR20:55London Heathrow
26h 25m
1 stop
SJO16:20San José Juan Santamaria Intl
£575

Iberia flights from San José to London Heathrow Airport

Our best Iberia deals on San José to London Heathrow Airport flight tickets
Iberia
14 May
SJO16:30San José Juan Santamaria Intl
20h 15m
1 stop
LHR19:45London Heathrow
21 May
LHR18:45London Heathrow
27h 20m
1 stop
SJO15:05San José Juan Santamaria Intl
£552
Iberia
22 Mar
SJO07:00San José Juan Santamaria Intl
23h 05m
1 stop
LHR12:05London Heathrow
29 Mar
LHR19:10London Heathrow
26h 55m
1 stop
SJO15:05San José Juan Santamaria Intl
£581
Iberia
29 Apr
SJO06:30San José Juan Santamaria Intl
19h 30m
1 stop
LHR09:00London Heathrow
13 May
LHR06:15London Heathrow
15h 50m
1 stop
SJO15:05San José Juan Santamaria Intl
£582

momondo Fare Finder

 
Customise your flight search to find flights from San José to London Heathrow Airport 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, momondo users made 279,928 searches. Data last updated 21 March 2026.
Use the filters below to find and compare flights from San José to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

San JoséLondon

SJO - LHR

SJOLHR

San José Juan Santamaria Intl

Thu 14/5

16:30-19:45

1 stop20h 15m

London Heathrow

Thu 21/5

18:45-15:05

1 stop27h 20m

£552
Fastest return journey

San JoséLondon

SJO - LHR

SJOLHR

San José Juan Santamaria Intl

Mon 18/5

19:15-18:35

1 stop16h 20m

London Heathrow

Fri 29/5

08:55-17:10

1 stop15h 15m

£565

San JoséLondon

SJO - LHR

SJOLHR

San José Juan Santamaria Intl

Mon 18/5

19:15-18:35

1 stop16h 20m

London Heathrow

Fri 29/5

06:15-17:10

1 stop17h 55m

£566

San JoséLondon

SJO - LHR

SJOLHR

San José Juan Santamaria Intl

Sun 7/6

19:05-18:35

1 stop16h 30m

London Heathrow

Sat 13/6

08:55-17:00

1 stop15h 05m

£569

San JoséLondon

SJO - LHR

SJOLHR

San José Juan Santamaria Intl

Sun 7/6

19:05-18:35

1 stop16h 30m

London Heathrow

Sat 13/6

08:55-17:00

1 stop15h 05m

£570

San JoséLondon

SJO - LHR

SJOLHR

San José Juan Santamaria Intl

Thu 30/4

13:21-06:25

1 stop34h 04m

London Heathrow

Thu 7/5

08:40-16:20

1 stop14h 40m

£570

San JoséLondon

SJO - LHR

SJOLHR

San José Juan Santamaria Intl

Sat 25/4

13:21-13:15

1 stop16h 54m

London Heathrow

Wed 6/5

20:55-16:20

1 stop26h 25m

£574

San JoséLondon

SJO - LHR

SJOLHR

San José Juan Santamaria Intl

Sat 25/4

14:31-13:15

1 stop15h 44m

London Heathrow

Wed 6/5

20:55-16:20

1 stop26h 25m

£575

San JoséLondon

SJO - LHR

SJOLHR

San José Juan Santamaria Intl

Sat 25/4

14:31-13:15

1 stop15h 44m

London Heathrow

Sat 16/5

06:15-17:10

1 stop17h 55m

£576

San JoséLondon

SJO - LHR

SJOLHR

San José Juan Santamaria Intl

Fri 1/5

13:21-06:25

1 stop34h 04m

London Heathrow

Sat 16/5

08:55-17:10

1 stop15h 15m

£576

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to London from

How to get the cheapest flight ticket from San José to London Heathrow Airport

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 London Heathrow Airport?

In general, October is the cheapest month to fly from San José to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £585. The month of November is another great option to travel to London Heathrow Airport, with average flight prices from San José averaging around £590.

How far in advance should I book a flight to London Heathrow Airport?

You are more likely to see cheaper flights to London Heathrow Airport from San José when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around £672 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from San José for as low as £600 on momondo.

How have San José to London Heathrow Airport flight prices changed over time?

As of March 2026, prices for San José to London Heathrow Airport flights are approximately 15% more expensive when compared to flights at the same time last year.

When to book flights from San José to London Heathrow Airport

Are you open to changing your travel dates? Check out the ideal times to fly from San José to London Heathrow Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap San José to London Heathrow Airport (SJO to LHR) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San José to London Heathrow Airport

Fastest flight time

14h 30m

Direct flights

None
The fastest flight from San José to London Heathrow Airport takes 14h 30m
There are no direct flights from San José to London Heathrow Airport. There are no popular flight routes from San José to London Heathrow Airport.
Search flight deals

  • How far is San José Juan Santamaria Intl to London Heathrow by plane?

    There are 5405.7 mi between San José Juan Santamaria Intl and London Heathrow. A reasonable flight in good conditions will take 14h 30m.

  • When did momondo last update prices for flights from San José Juan Santamaria Intl Airport to London Heathrow Airport?

    Prices for flights from San José Juan Santamaria Intl Airport to London Heathrow Airport were last updated today.

  • How many operators does momondo search for flights from San José Juan Santamaria Intl Airport to London Heathrow Airport?

  • How old do you have to be to fly from San José Juan Santamaria Intl Airport to London Heathrow Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from San José Juan Santamaria Intl Airport to London Heathrow Airport.

  • What documentation or ID do you need to fly to London Heathrow Airport?

    The travel and health documents you'll need for your trip to London Heathrow Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at London Heathrow Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from San José to London Heathrow Airport?

Best airlines flying from San José to London Heathrow Airport

Compare and see reviews for airlines that fly from San José to London Heathrow Airport with momondo
Airline
Rating
Free Cancellation
Price
KLMPriceFrom £526Free CancellationRating
7.8
1,475 reviews
Search KLM flights
IberiaPriceFrom £538Free CancellationRating
7.0
3,146 reviews
Search Iberia flights
Air FrancePriceFrom £571Free CancellationRating
7.4
1,547 reviews
Search Air France flights

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Why use momondo?

Why should I use momondo to find a flight deal from San José to London?

It is quick and easy to find San José to London flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to London that suits you.

Can I find flights from San José to London with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to London from San José with this policy.

How can momondo help me find flights from San José to London?

momondo provides multiple filters to help you find the best flight to London from San José. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from San José to London right now. Can momondo alert me if prices change?

If you are not ready to book a flight from San José to London now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to London and let you know when they change.

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