Cheap Flights from Islamabad to London Heathrow

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Compare Islamabad to London Heathrow flight deals

Find the cheapest month or even day of the year to fly to London Heathrow

Book the best London Heathrow fare with no extra fees

Flight deals from Islamabad to London Heathrow

Looking for a cheap last-minute deal or the best return flight from Islamabad to London Heathrow? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Islamabad to London Heathrow

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Islamabad to London Heathrow flights are currently cheapest in September.

Islamabad to London Heathrow: Alternative routes

Compare routes from Islamabad to London below. You may find an airport to fly into that's cheaper, faster, or easier than London Heathrow.

Islamabad to London: Flight information

The things to know before you go.
Cheapest flight foundRs74,836
Cheapest month to flySeptember

Finding cheap flights from Islamabad to London Heathrow: Frequently asked questions

The best price we found for a return flight from Islamabad to London Heathrow is Rs151,586. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Islamabad to London Heathrow. But we found flights with one or more stops from Rs151,586.
As of June 2025, there are no flights flying from Islamabad to London Heathrow.
The cheapest month to fly from Islamabad to London Heathrow is usually June 2025.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Islamabad Airport to London Heathrow Airport on Thursday, 25 September 2025.
No airlines currently offer direct flights between Islamabad Airport and London Heathrow Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to London Heathrow but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to London is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Etihad Airways offers the cheapest flight tickets to London Heathrow.

Flying from Islamabad International Airport (ISB) to London Heathrow Airport (LHR): what you need to know

  • The average length of a direct flight from Islamabad International Airport to London Heathrow Airport is 8 hours 50 minutes.

  • London's timezone is UTC+0, which makes London five hours behind Islamabad.

  • Give yourself enough time to catch your ISB to LHR flight. As a rule of thumb, arrive two hours before international departures and an hour ahead for domestic flights.

  • Flying during a peak time like July? Major public holidays and other high seasons can result in longer queues and delays at airport checkpoints. Play things extra safe and arrive up to four hours before international flights and two hours before domestic departures.

  • British Airways is your ticket to exploring London (and perhaps some other great corners of United Kingdom!). Browse the direct flights from Islamabad International Airport to London Heathrow Airport offered by this popular airline.

  • The airline most travellers fly with on this route is British Airways.

  • We make it simple to book a flight with a stopover. To see your options for tickets from Islamabad International Airport to London Heathrow Airport, deselect 'Direct flights only.' Then, choose a flight that has a stop long enough to visit your chosen city. Popular stopovers between ISB and LHR include:

    • Abu Dhabi International Airport

    • Hamad International Airport

    • Bahrain International Airport

How to find the cheapest flights from Islamabad International Airport (ISB) to London Heathrow Airport (LHR)

  • The cheapest price we've found for a one-way Islamabad International Airport to London Heathrow Airport flight is Rs74,836. A return ticket right now is Rs151,586. Depending on the availability and when you book, these fares could change.

  • Book 11 months before travelling. After looking at the numbers on our calendar, this is how far you should book ahead to secure cheap tickets from ISB to LHR.

  • October is the cheapest month for flights from Islamabad International Airport to London Heathrow Airport. If you want to fly at a different time of year, the 'Whole month' tool will show you the lowest airfares for every month.

  • Cut down on the time spent looking for cheap flights from ISB to LHR by setting up a Price Alert. You'll get an email or notification through the app when a special offer becomes available.

  • Secure the perfect flight for you with the help of the filters. To see the 'Best,' 'Cheapest' or 'Fastest' flights from Islamabad International Airport to London Heathrow Airport, use the 'Sort by' tool. You can also filter by departure and arrival times, airline, and journey duration.

Handy information about Islamabad International Airport (ISB)

  • When it comes to Islamabad International Airport's on-time performance, 71.38% of flights complete their journey on time.

  • Islamabad International Airport is about 31 kilometres from central Islamabad. If you're driving, catching a cab or ride-sharing from the centre, it'll take 35 minutes or so to arrive, depending on the traffic.

  • The journey on public transport typically takes 1 hour 25 minutes.

  • Get your journey off to a relaxed start by staying near ISB. Whether you're catching an early flight from Islamabad International Airport to London Heathrow Airport or just don't like being rushed, these hotels are the answer:

Arriving at London Heathrow Airport (LHR)

Getting from London Heathrow Airport (LHR) to central London

  • From London Heathrow Airport, London is approximately 31 kilometres away. It takes around 55 minutes to drive to the centre.

  • It'll take around 1 hour if you're travelling by public transport.

When to fly to London Heathrow Airport (LHR)

  • It's time to choose your travel dates for your flight from Islamabad International Airport to London Heathrow Airport. July is the busiest month to visit London. If you want a more low-key vibe, go in February.

  • When booking your flight from Islamabad International Airport to London Heathrow Airport, think about the type of weather you like. July is the warmest month in London, with the temperature ranging from 11ºC to 26ºC.

  • If you want to travel in cooler conditions, search for a cheap ticket from ISB to LHR in January. Temperatures average between 0ºC and 9ºC then.

Explore more of United Kingdom

  • London has its own special appeal, but there are so many other parts of United Kingdom waiting to be explored. About 161 kilometres north-west of London, a trip to Birmingham will fill your itinerary to the brim. Start with popular sights like Cadbury World, The Library of Birmingham and National Sea Life Centre.

  • If you're eager to discover another major stop in United Kingdom, consider Bristol, about 177 kilometres west of London. Clifton Suspension Bridge, Cabot Tower and Brandon Hill Nature Park are among its highlights.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.