Return fares to London by month, based on the cheapest return airfares found for each month.
The cheapest month to fly to London is November 2026, with return fares from $1,224 — 61% cheaper than the most expensive month (December 2026, from $3,163).
Based on the fares we've tracked, November is typically the cheapest month to fly to London, with return fares from $1,224. December is the most expensive month, with the cheapest return fares around $3,163 as school holidays and the Christmas peak push prices up.
Across the year, return fares to London average around $1,644. If you can travel in the off-peak months of November, March and February, you'll generally pay up to 26% less than the yearly average.
These are the cheapest prices for return airfares to London
These are the average prices for return airfares to London
When is the cheapest time to travel to London? The cheapest month to travel is typically November.
How much do return flights to London cost?The best price we found for a return flight to London is $1192.
What is the cheapest date to fly to London?Currently, the cheapest date for a return flight to London is 19 October 2026.
What is the cheapest airline that flys to London?Currently, the cheapest airline that flys to London is China Southern.
Which airlines fly direct to London? British Airways and Qantas fly direct.
How long does a direct flight to London take? The shortest direct flight usually takes 17 hours and 30 minutes.
What is the IATA airport code for London?The IATA code for London is LON.
When should you book flights to London?From our data, you should book flights to London 60 days out.
Heathrow Airport is about 25 km west of central London and is the main arrival point for flights from Australia. It has four terminals (2, 3, 4 and 5) that are not all within walking distance, so check which one your airline uses.
- Elizabeth line is the best option for most travellers. Modern trains with luggage space run to Paddington in about 30 minutes and continue through to the City and Canary Wharf. Works with Oyster or any contactless bank card.- Piccadilly line (Underground) is the cheapest rail option, taking 50 to 60 minutes to central London. Serves all terminals including Terminal 4. Runs frequently and has a Night Tube service on Fridays and Saturdays.
- Heathrow Express is a non-stop premium train to Paddington in 15 minutes. Substantially more expensive, but advance online fares can reduce the cost.
- National Express coaches run to Victoria Coach Station in 45 to 75 minutes.
An Oyster card or contactless bank card works on the Elizabeth line and Piccadilly line with automatic daily fare capping. Black cabs are available but expensive for the distance.
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