C$345 Cheap Flights from Tehran (THRA) to London Heathrow (LHR)

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Flight deals from Tehran to London Heathrow

Looking for a cheap last-minute deal or the best return flight from Tehran to London Heathrow Airport? If you want to travel next month, return fares start from C$1,070. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Tehran to London Heathrow from C$345 one-way

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

Tehran to London: Flight information

The things to know before you go.
Cheapest flight foundC$344
Cheapest month to flyDecember

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

The best price we found for a return flight from Tehran to London Heathrow is C$1,070. 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 Tehran to London Heathrow. But we found flights with one stop from C$1,070.
As of May 2026, there are no flights flying from Tehran to London Heathrow.
The cheapest month to fly from Tehran to London Heathrow is usually June.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Tehran to London Heathrow Airport on Friday, June 5, 2026.
No airlines currently offer direct flights between Tehran 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.
The cheapest airline that flies to London Heathrow is Azerbaijan Airlines .

Travelling from Tehran to London Heathrow Airport (LHR): what you need to know

  • Imam Khomeini International Airport (IKA) is Tehran's main airport. Explore your options for booking a flight from Tehran to London Heathrow Airport (LHR) taking off from here.

  • The average length of a direct flight from Tehran to London Heathrow Airport is 6 hours 40 minutes.

  • London is 3 hours 30 minutes behind Tehran. London Heathrow Airport is located in London, which operates on the UTC+0 timezone.

  • Imam Khomeini International Airport (IKA) to London Heathrow Airport (LHR) is the most popular route. There are 6 direct weekly flights to pick from. If you have things to do before leaving, take the last flight with IranAir at 11:20. Choose the first IKA to LHR departure operated by IranAir at 11:20 if you want to get going earlier.

  • Get to the airport on time so you don't miss your flight from Tehran to LHR. Be there at least two hours ahead for international flights and an hour early for domestic departures to avoid the stress of rushing.

  • During popular months like July, you'll want to get to the airport well in advance. Plan to arrive two hours before domestic departures and four hours ahead for an international flight when you fly during a peak period in general.

Airports in Tehran

Imam Khomeini International Airport (IKA)

  • Get there in one go from Imam Khomeini International Airport (IKA). Nonstop flights from Tehran to London Heathrow Airport (LHR) can be booked from here.

  • You can travel on a direct flight from Tehran to London Heathrow Airport with IranAir. This top airline operates services from IKA.

  • We make it simple to plan a flight from Tehran to LHR with a stopover. To see all your options departing from Imam Khomeini International Airport (IKA), uncheck 'Direct flights only.' Then, simply pick a flight offering a stop long enough to see the sights of your chosen city. Popular stopovers between IKA and LHR include:

    • Vienna International Airport (VIE)

    • Frankfurt Airport (FRA)

    • Istanbul Ataturk Airport (IST)

  • From central Tehran, IKA is around 56 kilometres away. Use navigation apps or check the official airport website to find the best way to arrive at the terminal.

  • Have an early flight from Tehran to London Heathrow Airport? Stay at a hotel close to Imam Khomeini International Airport, such as Remis Hotel. Rexan Hotel will also have you moments from the terminal.

About London Heathrow Airport (LHR)

Getting from London Heathrow Airport (LHR) to central London

  • London Heathrow Airport to the centre of London is around 57 minutes in a car. It's approximately 31 kilometres away. Find out what options are available, such as car rentals, cabs or ride-sharing services.

  • It takes around 1 hour and 1 minute to get there by public transport.

How to find the cheapest flights from Tehran to London Heathrow Airport (LHR)

  • C$345 is the cheapest price we've found for a one-way ticket from Tehran to London Heathrow Airport. Return flights start from C$1,070. Prices are subject to change based on availability and may vary at the time of booking.

  • It's best to book 8 months ahead. Flight price data suggests you're more likely to find flight tickets from Tehran to LHR within that timeframe.

  • To score the best price on your tickets from Tehran to London Heathrow Airport, schedule your trip for May (it has the cheapest flights). Travel dates flexible? Use the 'Whole month' function to browse the most affordable day to fly.

  • Set up a Price Alert for flight tickets from Tehran to LHR. You don't need to search every day to see whether fares have dropped. We'll update you when there's a change in price.

  • Make the most of the filters to find your ideal journey. To see the 'Cheapest,' 'Fastest' or 'Best' flights from Tehran to London Heathrow Airport, use the 'Sort by' function. You can also filter by airline, departure and arrival times, and number of stops.

The best time to fly from Tehran to London Heathrow Airport (LHR)

  • February is the quietest time to travel to London. Alternatively, follow the crowds and take off in July. This is the busiest month for flights from Tehran to London Heathrow Airport.

  • Think about the type of weather that'll work with your plans for London. The warmest month is July. Book your flights from Tehran to LHR during then and you can expect temperatures of between 11ºC and 26ºC.

  • January sees average temperatures of between 0ºC and 9ºC. Look for cheap flights from Tehran to London Heathrow Airport around that time if you want to travel in cooler conditions.

More about London

Complete your London trip with a car rental

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