•  Booking on your LHR-THR sector as well as your domestic flights within Iran must take place simultaneously.
• Time limit  for ticket purchase must be fully observed to prevent ticket cancellation.
• Both LHR-THR and THR-LHR must be REconfirmed 72 hours  prior to departure to avoid reservation cancellation.
• Be Careful not to lose your tickets or boarding passes. A boring and inconvenient formality must be followed in the event of ticket/boarding pass loss, as well as a re-issue fee of 35GBP per passenger, so please look after them carefully.
• All Iran Air flights operate out of Heathrow airport terminal 3. From central London, the Piccadilly line underground train takes about an hour to reach Heathrow, plus a further 10-15 minute walk through the walkway to terminal 3. Further information on access, and facilities at Heathrow airport can be found at the BAA website.
• Iran Air has 6 check-in desks  at Terminal 3 Heathrow, located towards the end of the departures hall in section F. There is a separate desks for Homa class (1st class)  ticket holders, ticket sales, and freight/excess luggage. You may purchase tickets from the sales desk on the day of the flight, if seats are available. However, you must ensure that you arrive at the desk at least 2 hours prior to departure. Due to the large number of passengers (over 400) checking in per flight, and the pre-boarding security checks at Heathrow, it is recommended that you arrive at Heathrow at least 3 hours prior to your flight. Check-in desks close 45 minutes prior to take-off. You will not be able to check in after the desk closes.
• Passengers with special needs, e.g. requiring wheelchairs, should request during booking, and contact Iran Air airport staff as early as possible to make arrangements.
• Transit passengers arriving in Heathrow, either from trans-Atlantic flights, or from Tehran, must present their tickets and baggage tags at the transfer desk of their next connecting carrier ( e.g. Virgin Atlantic, Air Canada, Iran Air, etc.). 
• Please ensure that all your baggage comply with the following requirements, both for safety reasons, and to avoid later problems with baggage handling services.
  • Only  one item of hand luggage is allowed on board, weight not exceeding 5KG, and no larger than 50x35x20cm in dimension. Also, a camera, a coat, an umbrella, a book or newspaper, may be carried on board.
  • Animals may not be carried in the passenger cabin of Iran Air flights. Please contact Iran Air staff  to make arrangements.
  • The baggage allowance is 30KG for adults, economy class; and 40KG for Homa class, of luggage per passenger.
  • Gross weight of each piece of luggage must not exceed 30KG.
  • The charge for excess luggage is 10GBP per KG, payable at check-in points, as well as boarding gate, in the event of over weight or over sized hand luggage .
  • Clearly label all items of luggage with your name and contact details, on an appropriately visible location.
  • Avoid packing cash, important documents, and other valuable items in your checked in luggage.
  • You are not carrying any unknown or suspicious articles on behalf of anyone, or accepted to check-in or carry luggage on  board on behalf of anyone, or left your baggage unattended at any time prior to check-in. Neither is anyone else carrying or checking in  baggage on your behalf.
  • Airport security will not allow any sharp objects, or anything that may be used as a weapon to be carried onboard a flight. 
  • Carrying liquids, foodstuff, perishable material and all other similar materials is forbidden.
  • Carrying alcoholic drinks, narcotics, hazardous chemicals, explosives/pyrotechnics and firearms are strictly forbidden. 
  • No dangerous goods or restricted articles as listed below have been left in your luggage:
    • Explosive, munitions, fireworks, flares, etc.
    • Compressed gas containers, either flammable, non-flammable, toxic, refrigerated, e.g. camping gas, lighter fuel, aerosols etc.
    • Flammable solids, such as matches, or other material which are easily ignited, or may spontaneously combust, or emit harmful or flammable gases on contact with water.
    • Oxidizing substances, e.g. bleaches, peroxides, etc.
    • Toxic and infectious substances.
    • Radioactive material.
    • Corrosives, e.g. acids, wet-cell and alkaline batteries, etc.
    • Magnetized materials, and other goods listed in the IATA dangerous goods regulations.
  • For safety reasons, use of the following electronic devices is not permitted on board Iran Air flights:
    • Mobile/satellite/portable phones or walkie-talkies.
    • Radio remote control toys or devices.
    • Cathode ray tube screens.
    • Any other device that emits EM radiation that may interfere with aircraft equipment.

Baggage Loss and Liability Limitation:

• In the event of loss of luggage, on the outbound trip to Tehran, please go to the luggage help desk, in the baggage lounge in Mehrabad airport, Tehran. On return to Heathrow, contact Iran Air staff at Heathrow, on (020) 8564 9806, or the following address: Terminal 3 Arrivals building, opposite belt #4, Tel. (020) 8757 0564.
• Baggage will only be delivered to the bearer of the baggage check-in receipt, so please ensure that the names on the baggage tags, match your receipts at the check-in desk. 
• Iran Air assumes no liability for fragile, valuable or perishable items. Liability for loss or damage to baggage is limited unless a higher value is declared in advance, and additional charges are paid. Iran Air liability limit is approximately 20USD per KG  of checked baggage.
• Any instance of baggage loss, damage, tampering or theft must be reported immediately to the appropriate carrier, or the airport authorities in the final destination, e.g. the lost & found  desk in Heathrow.