Perth (PER) to Colombo (CMB): 3,600 miles (5,793 km) great-circle, about 7h 40m nonstop by our estimate. Cheapest fare observed: $457 round-trip on AirAsia, with 1 stop, departing May 14, 2026.
$457 round-trip, AirAsia AK605, departing 2026-05-14 at 04:45, returning 2026-05-24. The recorded itinerary left on a Thursday, returning on a Sunday 10 nights later; the fare was observed 19 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $457, it ranked 10th of the 30 round-trip fares we recorded from PER (median $1,061). That is 12.7 cents per great-circle mile (round-trip price over one-way distance), below the PER median of 18.3 cents across 30 round-trip routes.
Routes from PER of similar length: Guangzhou (3,827 mi) at $444 and Da Nang (3,355 mi) at $417.
AirAsia had the cheapest fare on 5 of 30 PER routes. It is the 21st longest of the 30 routes we track from PER.
Of 15 departure airports with a fare to Colombo, Perth (PER) ranked 8th at $457. Lowest: $210 from Chennai (MAA); highest: $1494 from Edmonton (YEG); 5 nonstop. Cheapest-fare airlines (routes): IndiGo (3), SriLankan Airlines (2), Air Arabia Abu Dhabi (1), AirAsia (1), airline 01 (1) and Batik Air Malaysia (1), plus 6 more.
Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones Australia/Perth, Asia/Colombo; flight time is our estimate.