$550 Cheap Thai Airways International flights Perth (PER) to Kathmandu (KTM)

Apply the "Price (lowest to highest)" filter on Expedia to search for cheap Thai Airways International round-trip flights from $884 from PER to KTM. Affordable one-way fares from $550 are also on offer.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

To get cheap flights from PER to KTM with Thai Airways International, start searching about one month before your intended departure. You can save 17% when you lock in your international tickets 18 to 29 days ahead instead of booking four to five months in advance. Another tip? Booking on Sunday offers average savings of 17% compared to Friday (the most expensive day).**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.

Find Thai Airways International's earliest flights from PER to KTM by selecting our "Early Morning" and "Morning" filters. Not only will you get to your destination sooner, early departures are also 20% less likely to be canceled.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.

With top-tier customer service, Thai Airways International is a favorite of many travelers heading from PER to KTM. Plus, as a Thai Royal Orchid Plus and One Key™ member booking through Expedia, you can earn OneKeyCash™* on eligible flights along with your airline miles.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.