$627 Cheap Cathay Pacific flights St. Louis (STL) to Kathmandu (KTM)

Set the "Price (lowest to highest)" filter on Expedia to find cheap Cathay Pacific return flights from $1,217 from STL to KTM. Affordable one-way tickets from $627 are available as well.**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.

Landing the best Cathay Pacific deals from STL to KTM often comes down to booking at the right time. You can save 17% on international flights when you book 18 to 29 days before takeoff instead of four to five months ahead. Better still, you can pocket 17% on average by buying your tickets on a Sunday rather than a Friday, which is often the most expensive day to book.* It's smart to kick off your flight search about one month before your departure date.*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.

Browse Cathay Pacific's earliest flights from STL to KTM by using our "Early Morning" and "Morning" filters. Not only will you arrive sooner, early departures also have a 20% less chance of being 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.

Jetting off from STL to KTM with Cathay Pacific means enjoying a host of perks, such as a 5-star airline rating and top-tier customer service. Plus, when booking through Expedia, One Key™ members can earn OneKeyCash™* to redeem on select future travel purchases. That's in addition to the Marco Polo Club points you can earn with Cathay Pacific.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.