A dinosaur skeleton in an airport terminal.

£299 Cheap Flights from Islamabad (ISB) to London (LHR)

View £299 flight on Thu, 24 Sept 2026Opens in a new window

Popular airlines from Benazir Bhutto Intl. Airport (ISB) to Heathrow Airport (LHR)

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 25% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap Flights from Islamabad (ISB) to London (LHR)

Prices were available within the past 7 days and start at £299 for one-way flights and £582 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Kuwait Airways
Wed, 11 Nov - Fri, 27 Nov
ISB
Islamabad
LHR
London
£582 Return, found 1 day ago
£582
Return
found 1 day ago
Select Kuwait Airways flight, departing Wed, 11 Nov from Islamabad to London, returning Fri, 27 Nov, priced at £582 found 1 day ago
Kuwait Airways
Fri, 5 Mar - Fri, 12 Mar
ISB
Islamabad
LHR
London
£584 Return, found 3 hours ago
£584
Return
found 3 hours ago
Select Kuwait Airways flight, departing Fri, 5 Mar from Islamabad to London, returning Fri, 12 Mar, priced at £584 found 3 hours ago
Kuwait Airways
Wed, 24 Mar - Wed, 28 Apr
ISB
Islamabad
LHR
London
£585 Return, found 4 days ago
£585
Return
found 4 days ago
Select Kuwait Airways flight, departing Wed, 24 Mar from Islamabad to London, returning Wed, 28 Apr, priced at £585 found 4 days ago
Kuwait Airways
Wed, 18 Nov - Fri, 9 Apr
ISB
Islamabad
LHR
London
£587 Return, found 1 day ago
£587
Return
found 1 day ago
Select Kuwait Airways flight, departing Wed, 18 Nov from Islamabad to London, returning Fri, 9 Apr, priced at £587 found 1 day ago
Kuwait Airways
Fri, 20 Nov - Fri, 27 Nov
ISB
Islamabad
LHR
London
£606 Return, found 2 days ago
£606
Return
found 2 days ago
Select Kuwait Airways flight, departing Fri, 20 Nov from Islamabad to London, returning Fri, 27 Nov, priced at £606 found 2 days ago
Kuwait Airways
Thu, 24 Sept - Wed, 7 Oct
ISB
Islamabad
LHR
London
£617 Return, found 3 days ago
£617
Return
found 3 days ago
Select Kuwait Airways flight, departing Thu, 24 Sept from Islamabad to London, returning Wed, 7 Oct, priced at £617 found 3 days ago
Gulf Air
Mon, 28 Sept - Fri, 30 Oct
ISB
Islamabad
LHR
London
£633 Return, found 2 days ago
£633
Return
found 2 days ago
Select Gulf Air flight, departing Mon, 28 Sept from Islamabad to London, returning Fri, 30 Oct, priced at £633 found 2 days ago
Saudia
Tue, 13 Oct - Tue, 27 Oct
ISB
Islamabad
LHR
London
£676 Return, found 4 hours ago
£676
Return
found 4 hours ago
Select Saudia flight, departing Tue, 13 Oct from Islamabad to London, returning Tue, 27 Oct, priced at £676 found 4 hours ago
Etihad Airways
Tue, 4 Aug - Tue, 15 Sept
ISB
Islamabad
LHR
London
£677 Return, found 2 days ago
£677
Return
found 2 days ago
Select Etihad Airways flight, departing Tue, 4 Aug from Islamabad to London, returning Tue, 15 Sept, priced at £677 found 2 days ago
Pakistan International Airlines
Wed, 5 Aug - Mon, 7 Sept
ISB
Islamabad
LHR
London
£703 Return, found 1 hour ago
£703
Return
found 1 hour ago
Select Pakistan International Airlines flight, departing Wed, 5 Aug from Islamabad to London, returning Mon, 7 Sept, priced at £703 found 1 hour ago

Alternative airports near London

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Gatwick LGW. Cheapest option available. Average driving time to city centre is 52 minutes. Flights from £714
LGW
Gatwick
Cheapest
Average driving time to city centre52 min
Flights from £714

Find the cheapest month to fly from Islamabad (ISB) to London (LHR)

February is typically the cheapest month to fly

From £476 - £655 per traveller.

Frequently asked questions

How much does a flight from Islamabad (ISB) to London (LHR) cost?
You can find one-way and return flights from Islamabad (ISB) to London (LHR) with Expedia. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see our cheapest fares first, and use the Price Tracking tool to receive alerts when ISB to LHR ticket fares go up or down.
What is the cheapest month to fly from Islamabad (ISB-Islamabad Intl.) to London (LHR-Heathrow)?
The cheapest months to fly from ISB to LHR are typically during off-peak season when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you are able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Islamabad (ISB) to London (LHR)?
Enter ISB to LHR and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Islamabad (ISB-Islamabad Intl.) to London (LHR-Heathrow)?
Uzbekistan Airways is one of the cheapest airlines offering connecting return flights from Islamabad (ISB-Islamabad Intl.) to London (LHR-Heathrow), with tickets starting from around £851 for flights that can be booked for departure within the next year. These prices are per adult, for economy/coach class. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.
How do I find cheap flights from Islamabad (ISB-Islamabad Intl.) to London (LHR-Heathrow)?
To find a cheap flight from Islamabad (ISB-Islamabad Intl.) to London (LHR-Heathrow), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Islamabad (ISB-Islamabad Intl.) to London (LHR-Heathrow)?
The best airline to fly with from Islamabad (ISB-Islamabad Intl.) to London (LHR-Heathrow) will differ from traveler to traveler. If you like to fly early, Pakistan International Airlines offers early morning flights. If price is the most important factor, Pakistan International Airlines typically offers the lowest fares. Qatar Airways offers the most daily flights from Islamabad (ISB-Islamabad Intl.) to London (LHR-Heathrow), which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Islamabad (ISB-Islamabad Intl.) to London (LHR-Heathrow)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Islamabad (ISB-Islamabad Intl.) to London (LHR-Heathrow)?
There are approximately 18 connecting flights per day from Islamabad (ISB) to London Heathrow (LHR). Some common connection points include Hamad Intl. (DOH), Dubai Intl. (DXB), and Abu Dhabi Intl. (AUH).
What is the earliest flight from Islamabad (ISB) to London (LHR)?
Sort flights by "Departure (earliest)" on Expedia to find the earliest flight from Islamabad (ISB) to London (LHR). To compare more early flights, use the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Islamabad (ISB-Islamabad Intl.) to London (LHR-Heathrow)?
You'll typically find the most flights from Islamabad (ISB) to London Heathrow (LHR) on a Tuesday, with around 18 flights available. This gives you a good selection of options for your travel plans. Major airlines on this route include Qatar Airways, Saudi Arabian Airlines, and Turkish Airlines. Flight schedules are fairly consistent throughout the week, so you'll have plenty of options regardless of the day you choose to fly.
What are the most popular departure times for flights from Islamabad (ISB-Islamabad Intl.) to London (LHR-Heathrow)?
The most popular departure times for flights from Islamabad (ISB-Islamabad Intl.) to London (LHR-Heathrow) are in the early morning, from 3am to 6am. Many major carriers, including Qatar Airways, Etihad Airways and Emirates, offer flights during this window. Many travellers prefer these times because they allow for an early arrival in London, giving you more of the day to settle in or start your activities.
How long does it take to fly from Islamabad (ISB-Islamabad Intl.) to London (LHR-Heathrow)?
Flights from ISB to LHR with one stop typically take around 14 hours, covering approximately 6,067 kilometers. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Islamabad (ISB-Islamabad Intl.) to London (LHR-Heathrow)?
You can fly business class between Islamabad (ISB) and London (LHR). Airlines that offer business class service on this route include:
  • Qatar Airways
  • Saudi Arabian Airlines
  • Turkish Airlines
  • Emirates
  • Thai Airways International
  • Etihad Airways
  • Azerbaijan Airlines
  • Gulf Air
  • flydubai
  • China Southern Airlines
  • Air China
How do I earn miles on a Islamabad (ISB) to London (LHR) flight with Expedia?
It's easy to earn miles on a Islamabad (ISB) to London (LHR) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
Is it cheaper to buy a plane ticket from Islamabad (ISB) to London (LHR) at the last minute?
Typically, booking a last minute flight from Islamabad (ISB) to London (LHR) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Islamabad (ISB) to London (LHR) flight and hotel package?
Securing a Islamabad (ISB) to London (LHR) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Islamabad (ISB-Islamabad Intl.) to London (LHR-Heathrow)?
If you booked your Islamabad (ISB-Islamabad Intl.) to London (LHR-Heathrow) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Islamabad Intl.
Destination airport
Heathrow
Airlines serving
Air China, Azerbaijan Airlines, British Airways, China Southern Airlines, Emirates, Etihad Airways, Gulf Air, Kuwait Airways, Oman Air, Pakistan International Airlines, Qatar Airways, Saudia, Thai Airways International, Turkish Airlines, Uzbekistan Airways
Return price
£582
Distance
6016 km
Average flight time
9 hours 40 mins

Book with confidence

Compare flights from Islamabad to London easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Islamabad to London. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Heathrow in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Islamabad Intl. to Heathrow.  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Islamabad Intl. (ISB) to Heathrow (LHR)

The easiest way to view the best deals on flights from Islamabad to London today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Islamabad Intl. to Heathrow start at just £582 and range up to £703.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Islamabad and London
  • booking your flight during November, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Islamabad to London flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Islamabad Intl. to Heathrow for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Compare flights from Islamabad to London easily and book with confidence

Explore a world of travel with Expedia

*Available to Expedia members.