Cheap Flights from Perth to London
Prices are from searches made in the last 24 hours and current prices may differ.
Do you need to catch a flight to Perth? Check out our domestic flights to Perth. If Perth is not your closest airport, then here are all our flights to London from Australia and flights to United Kingdom. Maybe a different destination? Here are all the flights from Perth
Cheapest Time of Year to Fly from Perth to London
Return fares from Perth to London by month, based on the cheapest return airfares found for each month.
The cheapest month to fly to London is September 2026, with return fares from $1,203 — 44% cheaper than the most expensive month (April 2027, from $2,152).
When Should You Fly to London?
Based on the fares we've tracked, September is typically the cheapest month to fly to London, with return fares from $1,203. April is the most expensive month, with the cheapest return fares around $2,152.
Across the year, return fares to London average around $1,558. If you can travel in the off-peak months of September, November and October, you'll generally pay up to 23% less than the yearly average.
Cheapest Perth to London Return Prices
These are the cheapest prices for Perth to London return airfares.
Average Perth to London Return Prices
These are the average prices for Perth to London return airfares.
Frequently Asked Questions about flying from Perth to London
When is the cheapest time to travel from Perth to London?The cheapest month to travel is typically September.
How much do return flights from Perth to London cost?The best price we found for a return flight from Perth to London is $946.
What is the cheapest date to fly from Perth to London?Currently, the cheapest date for a return flight from Perth to London is 15 October 2026.
What is the cheapest airline that flys from Perth to London?Currently, the cheapest airline that flys from Perth to London is AirAsia.
Which airlines fly direct from Perth to London?Qantas flies direct.
How long does a direct flight from Perth 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.
How I Want That Flight can help you
What's the benefit of using I Want That Flight for my Perth to London flight?Think of us as your personal shortcut to a great deal. Instead of you opening fifty different tabs, we instantly cross-check rates across heaps of airlines and booking sites to score you the sweet spot on pricing. Millions of holidaymakers count on us every year to get them airborne, so you're running with a pretty savvy crowd.
Can you sort me out with direct flights from Perth to London?100%. As soon as the page finishes loading your options, hit the "Direct" filter. The layovers will vanish, leaving you with only the non-stop routes.
How does I Want That Flight find me the best Perth to London flights?Once you punch your details into our search tool, we unlock all kinds of handy tricks to map out your journey. We’ll map out the most budget-friendly calendar dates and takeoff slots, and let you slice and dice the data until you pinpoint the exact itinerary that works for you.
I'm still in the planning phase. Can you ping me if Perth to London fares drop?No worries at all. Just kick off a quick search, drop your email into our price tracker, and we’ll send a heads-up straight to your inbox the moment the price drops.
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