฿30,615 Cheap Flights from St. Louis (STL) to Kathmandu (KTM)

View ฿30,615 flight on Wed, 13 May 2026Opens in a new window

Popular airlines from Lambert-St. Louis International Airport (STL) to Tribhuvan Intl. Airport (KTM)

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Cheap Flights from St. Louis (STL) to Kathmandu (KTM)

Prices were available within the past 7 days and start at ฿30,615 for one-way flights and ฿52,400 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Sun, 31 May - Mon, 15 Jun
STL
St. Louis
KTM
Kathmandu
฿52,400 Return, found 8 hours ago
฿52,400
Return
found 8 hours ago
Select Alaska Airlines flight, departing Sun, 31 May from St. Louis to Kathmandu, returning Mon, 15 Jun, priced at ฿52,400 found 8 hours ago
Alaska Airlines
Sun, 31 May - Mon, 15 Jun
STL
St. Louis
KTM
Kathmandu
฿52,490 Return, found 8 hours ago
฿52,490
Return
found 8 hours ago
Select Alaska Airlines flight, departing Sun, 31 May from St. Louis to Kathmandu, returning Mon, 15 Jun, priced at ฿52,490 found 8 hours ago
American Airlines
Sun, 31 May - Mon, 15 Jun
STL
St. Louis
KTM
Kathmandu
฿60,035 Return, found 8 hours ago
฿60,035
Return
found 8 hours ago
Select American Airlines flight, departing Sun, 31 May from St. Louis to Kathmandu, returning Mon, 15 Jun, priced at ฿60,035 found 8 hours ago
Qatar Airways
Sun, 31 May - Mon, 15 Jun
STL
St. Louis
KTM
Kathmandu
฿60,395 Return, found 8 hours ago
฿60,395
Return
found 8 hours ago
Select Qatar Airways flight, departing Sun, 31 May from St. Louis to Kathmandu, returning Mon, 15 Jun, priced at ฿60,395 found 8 hours ago
Qatar Airways
Sun, 31 May - Mon, 15 Jun
STL
St. Louis
KTM
Kathmandu
฿60,485 Return, found 8 hours ago
฿60,485
Return
found 8 hours ago
Select Qatar Airways flight, departing Sun, 31 May from St. Louis to Kathmandu, returning Mon, 15 Jun, priced at ฿60,485 found 8 hours ago
Air Canada
Sun, 31 May - Mon, 15 Jun
STL
St. Louis
KTM
Kathmandu
฿61,710 Return, found 8 hours ago
฿61,710
Return
found 8 hours ago
Select Air Canada flight, departing Sun, 31 May from St. Louis to Kathmandu, returning Mon, 15 Jun, priced at ฿61,710 found 8 hours ago
Qatar Airways
Sun, 31 May - Mon, 15 Jun
STL
St. Louis
KTM
Kathmandu
฿75,615 Return, found 8 hours ago
฿75,615
Return
found 8 hours ago
Select Qatar Airways flight, departing Sun, 31 May from St. Louis to Kathmandu, returning Mon, 15 Jun, priced at ฿75,615 found 8 hours ago
American Airlines
Sun, 31 May - Mon, 15 Jun
STL
St. Louis
KTM
Kathmandu
฿80,960 Return, found 8 hours ago
฿80,960
Return
found 8 hours ago
Select American Airlines flight, departing Sun, 31 May from St. Louis to Kathmandu, returning Mon, 15 Jun, priced at ฿80,960 found 8 hours ago
Air Canada
Sun, 31 May - Mon, 15 Jun
STL
St. Louis
KTM
Kathmandu
฿85,140 Return, found 8 hours ago
฿85,140
Return
found 8 hours ago
Select Air Canada flight, departing Sun, 31 May from St. Louis to Kathmandu, returning Mon, 15 Jun, priced at ฿85,140 found 8 hours ago
United
Sun, 31 May - Mon, 15 Jun
STL
St. Louis
KTM
Kathmandu
฿104,235 Return, found 8 hours ago
฿104,235
Return
found 8 hours ago
Select United flight, departing Sun, 31 May from St. Louis to Kathmandu, returning Mon, 15 Jun, priced at ฿104,235 found 8 hours ago

Frequently asked questions

How much is a flight from St. Louis Lambert International Airport to KTM?
The lowest price advertised for a round-trip flight between STL and KTM is ฿52,400. But you better act soon. This price is based on fares offered within the last 7 days on Expedia for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from St. Louis Lambert International Airport to Tribhuvan Intl. Airport (KTM)?
The majority of flights can be cancelled online, but every air carrier has its own set of terms and conditions. If you do need to cancel your flight, go to our Customer Service Portal and follow the instructions.
How do I find cheap flights from STL to KTM that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for St. Louis Lambert International Airport to Tribhuvan Intl. Airport (KTM) flights, you'll see a "no change fees" filter for you to select.
How far is the flight from St. Louis Lambert International Airport to Tribhuvan Intl. Airport (KTM)?
With around 12,600 kilometres separating St. Louis and Kathmandu, your flight will be a long one. Pack wisely to make your trip comfortable. Simple things like an eye mask and a good neck pillow can make a massive difference.
Which airlines fly direct from Lambert Field to Tribhuvan Intl. Airport?
If you want to travel straight from Lambert-St. Louis Intl. Airport (STL) to Tribhuvan Intl. Airport, you'll have to book a flight with at least one stop. Unfortunately, there aren't any airlines that fly directly on this route.
Are Lambert Field to Tribhuvan Intl. Airport (KTM) flight tickets cheaper when they're purchased at the last minute?
Fares from Lambert-St. Louis Intl. Airport (STL) to Tribhuvan Intl. Airport are available up to a year before departure on Expedia. And although you may pick up a great last-minute deal, it's not something you should count on. Also, booking your flights well in advance means you'll have more choices — and you can avoid ending up with the dreaded middle seat! We regularly update our fares to bring you the biggest bargains, so keep checking in for all the latest specials.

Travel information

Origin airport
Lambert-St. Louis Intl.
Destination airport
Tribhuvan Intl.
Return price
฿52,400
Distance
12539 km

Book with confidence

Perfect flights from St. Louis to Kathmandu

Embark on an unforgettable journey without breaking the bank with Expedia's incredible deals on cheap flights from St. Louis to Kathmandu. Whether you're aching for a romantic escape with your partner, craving an adventurous solo expedition, or yearning to immerse yourself in the local history and culture, we've got you covered.
 
Picture yourself strolling through the streets of , surrounded by breathtaking architecture and absorbing the vibrant atmosphere of this captivating city. Indulge in the mouth-watering local specialties, from tantalizing street food to exquisite fine dining. With Expedia, you can experience all of this and more, without sacrificing your budget.
 
Our flexible Lambert-St. Louis Intl. to Tribhuvan Intl. ticket options cater to your travel preferences, with incredible one-way fares from ฿30,615 and roundtrip prices from ฿52,400. Whether you're planning a short city break or a longer adventure, our dynamic pricing ensures that you find the best deals for your journey.
 
But the magic doesn't stop there. Expedia offers a range of partner services to enhance your trip. Rent a car at Tribhuvan Intl. and explore and its surrounding areas at your own pace. Discover hidden gems off the beaten path, and create unforgettable memories. We also provide a handpicked selection of accommodations, from charming bed and breakfasts to luxury hotels, ensuring that you have a comfortable and memorable stay.
 
Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support are designed to make your travel experience seamless and stress-free. So, why wait? Book your to travel arrangements today and embark on the journey of a lifetime in Kathmandu.
Perfect flights from St. Louis to Kathmandu
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