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Cheap flights from Islamabad to London Heathrow Airport from C$ 618

ISB — LHR
11 Dec — 18 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Islamabad to Heathrow

Enter your travel dates to find the best prices.

Cheapest flights from Islamabad to Heathrow

Sat 5/124:35 a.m. -
1 stop12h 30m
Fri 25/121:55 p.m. -
1 stop23h 15m
Deal found 8/11C$ 1,247
Mon 7/124:35 a.m. -
1 stop12h 30m
Sun 3/18:40 a.m. -
1 stop13h 35m
Deal found 8/11C$ 1,248
Fri 4/123:10 p.m. -
1 stop20h 25m
Thu 7/19:30 a.m. -
1 stop23h 50m
Deal found 8/11C$ 1,262
Thu 10/124:35 a.m. -
1 stop12h 30m
Fri 25/127:20 p.m. -
1 stop17h 50m
Deal found 8/11C$ 1,268
Mon 21/1210:10 a.m. -
1 stop33h 45m
Tue 29/125:55 p.m. -
1 stop33h 45m
Deal found 7/11C$ 1,271
Tue 24/113:10 p.m. -
1 stop20h 25m
Mon 7/129:40 p.m. -
1 stop11h 40m
Deal found 10/11C$ 1,283
Thu 3/123:10 p.m. -
1 stop20h 25m
Thu 7/19:30 a.m. -
1 stop23h 50m
Deal found 8/11C$ 1,286
Sun 22/114:35 a.m. -
1 stop18h 25m
Tue 8/128:55 p.m. -
1 stop16h 15m
Deal found 10/11C$ 1,289
Thu 26/1111:15 a.m. -
Nonstop8h 50m
Wed 24/37:55 p.m. -
Nonstop8h 05m
Deal found 6/11C$ 1,292
Tue 8/124:35 a.m. -
1 stop12h 30m
Tue 5/11:55 p.m. -
1 stop23h 15m
Deal found 8/11C$ 1,296
Tue 8/121:05 p.m. -
Nonstop8h 50m
Mon 21/126:00 p.m. -
Nonstop8h 05m
Deal found 6/11C$ 1,299
Sat 14/114:05 a.m. -
1 stop30h 50m
Tue 24/118:05 p.m. -
1 stop26h 15m
Deal found 11/11C$ 1,303

Find flight deals from Islamabad to Heathrow

Round-trip from

C$ 1,244

One-way from

C$ 618

Popular in

November

Cheapest in

March

Average price

C$ 1,530
Gulf Air
  • Gulf Air
  • 29/3-14/5
  • 2 total stops
  • 40h 15m total
  • Islamabad to London
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SAUDIA
  • SAUDIA
  • 24/1-31/12
  • 1 total stop
  • 17h 40m total
  • Islamabad to London
Search Deals
Highest demand for flights based on searches. 0% potential increase in price (C$ 5 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease (C$ 26 potential savings vs. average RT price).
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Average for round-trip flights in November 2026
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Islamabad to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

IslamabadLondon

ISB Islamabad Intl - LHR London Heathrow

ISBLHR

Islamabad Intl

Tue 26/1

5:45 p.m.-12:15 p.m.

1 stop23h 30m

London Heathrow

Wed 31/12

12:00 a.m.-4:00 a.m.

Nonstop0h 00m

C$ 618

IslamabadLondon

ISB Islamabad Intl - LHR London Heathrow

ISBLHR

Islamabad Intl

Wed 27/1

2:30 a.m.-12:15 p.m.

1 stop14h 45m

London Heathrow

Wed 31/12

12:00 a.m.-4:00 a.m.

Nonstop0h 00m

C$ 618

IslamabadLondon

ISB Islamabad Intl - LHR London Heathrow

ISBLHR

Islamabad Intl

Wed 25/11

7:00 p.m.-2:45 p.m.

2 stops48h 45m

London Heathrow

Wed 31/12

12:00 a.m.-4:00 a.m.

Nonstop0h 00m

C$ 651

IslamabadLondon

ISB Islamabad Intl - LHR London Heathrow

ISBLHR

Islamabad Intl

Fri 4/12

4:35 a.m.-6:10 p.m.

1 stop18h 35m

London Heathrow

Wed 31/12

12:00 a.m.-4:00 a.m.

Nonstop0h 00m

C$ 651

IslamabadLondon

ISB Islamabad Intl - LHR London Heathrow

ISBLHR

Islamabad Intl

Fri 18/12

4:05 a.m.-6:25 p.m.

1 stop19h 20m

London Heathrow

Wed 31/12

12:00 a.m.-4:00 a.m.

Nonstop0h 00m

C$ 657

IslamabadLondon

ISB Islamabad Intl - LHR London Heathrow

ISBLHR

Islamabad Intl

Thu 19/11

4:05 a.m.-6:25 p.m.

1 stop19h 20m

London Heathrow

Wed 31/12

12:00 a.m.-4:00 a.m.

Nonstop0h 00m

C$ 657

IslamabadLondon

ISB Islamabad Intl - LHR London Heathrow

ISBLHR

Islamabad Intl

Thu 17/12

4:05 a.m.-5:55 a.m.

1 stop30h 50m

London Heathrow

Wed 31/12

12:00 a.m.-4:00 a.m.

Nonstop0h 00m

C$ 662
Quickest round-trip

IslamabadLondon

ISB Islamabad Intl - LHR London Heathrow

ISBLHR

Islamabad Intl

Thu 26/11

11:15 a.m.-3:05 p.m.

Nonstop8h 50m

London Heathrow

Wed 31/12

12:00 a.m.-4:00 a.m.

Nonstop0h 00m

C$ 664

IslamabadLondon

ISB Islamabad Intl - LHR London Heathrow

ISBLHR

Islamabad Intl

Thu 24/12

3:10 p.m.-2:45 p.m.

1 stop28h 35m

London Heathrow

Wed 31/12

12:00 a.m.-4:00 a.m.

Nonstop0h 00m

C$ 668

IslamabadLondon

ISB Islamabad Intl - LHR London Heathrow

ISBLHR

Islamabad Intl

Sat 5/12

10:20 a.m.-2:10 p.m.

Nonstop8h 50m

London Heathrow

Wed 31/12

12:00 a.m.-4:00 a.m.

Nonstop0h 00m

C$ 668

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 21 resultsSorted by cheapest first
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Best time to book a flight from Islamabad to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Islamabad with our price prediction graph.
Estimated round-trip price

Cheapflights Insights

Everything you need to know about your flight from Islamabad to London Heathrow Airport

How far ahead should I book a flight from Islamabad to London Heathrow Airport?

The price you pay for your flight from Islamabad to London Heathrow Airport may vary depending on when you book. For the best chance of a lower fare, look to book 57 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Islamabad to London Heathrow Airport?

Currently, March is the cheapest month in which you can book a flight from Islamabad to London Heathrow Airport (average of C$ 1,138). Flying from Islamabad to London Heathrow Airport in November is currently the most expensive (average of C$ 1,530). 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 ISB to LHR?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Islamabad to London Heathrow Airport as you normally would.

How much does it cost to fly round-trip from Islamabad to London Heathrow Airport?

Airfare is below average for this route at the moment.

Islamabad to London Heathrow Airport flights typically cost between C$ 1,249 and C$ 1,578 in March.
The cheapest round-trip price found within the last 5 days was C$ 1,244 on Gulf Air (29 Mar-14 May).

Related info for your journey

  • What airport do you fly from for flights from Islamabad to London Heathrow?

    Most people fly from Islamabad Intl (ISB) if they book a flight from Islamabad to London Heathrow. On average, Islamabad Intl has 0 outbound flights to London Heathrow per day from 0 airlines. Islamabad Intl is conveniently located just 31.8 km from Islamabad’s city centre.

  • How long is the flight from Islamabad to London Heathrow Airport?

    A quick flight from Islamabad to London Heathrow Airport can take about 19h 20m. Gulf Air provides one of the quickest options available for as low as C$ 1,310. Airlines will cover a distance of 6048 km. This flight may include one or multiple stops.

  • Can I find deals for flights from Islamabad to Heathrow that include hotel bookings?

    Yes. In addition to deals on Islamabad to Heathrow flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Islamabad to Heathrow?

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

  • Can I find deals for business class flights from Islamabad to Heathrow?

    Yes. Cheapflights offers flight deals from Islamabad to Heathrow 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 Islamabad to London Heathrow Airport?

    Currently, March is the cheapest month in which you can book a flight from Islamabad to London Heathrow Airport (average of C$ 1,138). Flying from Islamabad to London Heathrow Airport in November is currently the most expensive (average of C$ 1,530). 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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Certainly. Search results for flights to Heathrow from Islamabad shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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