C$1,161 Cheap Flights from Kathmandu (KTM) to St Louis (STL)

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Flight deals from Kathmandu to St Louis

Looking for a cheap last-minute deal or the best return flight from Kathmandu Airport to St Louis Airport? If you want to travel next month, return fares start from C$2,588. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Kathmandu to St Louis

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Kathmandu to St Louis flights are currently cheapest in December.

Kathmandu to St Louis: Alternative routes

Compare routes from Kathmandu to St Louis below. You may find an airport to fly into that's cheaper, faster, or easier than St Louis.

Kathmandu to St Louis: Flight information

The things to know before you go.
Cheapest flight foundC$1,164
Cheapest month to flyDecember

Finding cheap flights from Kathmandu to St Louis: Frequently asked questions

The best price we found for a return flight from Kathmandu to St Louis is C$2,588. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Kathmandu to St Louis. But we found flights with one or more stops from C$2,588.
As of May 2026, there are no flights flying from Kathmandu to St Louis.
The cheapest month to fly from Kathmandu to St Louis is usually June.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Kathmandu Airport to St Louis Airport on Monday, June 15, 2026.
No airlines currently offer direct flights between Kathmandu Airport and St Louis Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to St Louis but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to St Louis is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Qatar Airways offers the cheapest flight tickets to St Louis.

Traveling from Tribhuvan International Airport (KTM) to Lambert-St. Louis International Airport (STL): what you need to know

  • Peak months like October or high seasons such as Christmas and New Year will mean bigger queues at check-in and security. If you're traveling then, play it safe and get to the terminal even earlier. Arriving two hours before a domestic flight and up four hours ahead of an international flight is a wise move.

  • Before reserving your cheap ticket from KTM to STL, check if you need a visa to enter United States. Visa and travel document requirements may differ and are updated often. To get the latest information, contact the nearest embassy or consulate of your destination.

How to find the cheapest flights from Tribhuvan International Airport (KTM) to Lambert-St. Louis International Airport (STL)

  • C$1,161 is the best price for a one-way ticket from Tribhuvan International Airport to Lambert-St. Louis International Airport. A return flight starts at C$2,588. These prices may change based on demand and availability.

  • To get your hands on cheap flight tickets from KTM to STL, book as early as possible. Airlines generally offer lower prices when flights are first released.

  • Getting cheap flight tickets from Tribhuvan International Airport to Lambert-St. Louis International Airport is easier if you're flexible with your dates. Try using the 'Whole month' tool to see the lowest fares across the month and land a great deal.

  • Sign into your online account or use the app to set up a Price Alert. You'll get notified straight away if there's a better deal on this route. It's simple to do, and it'll save you from searching for cheap flight tickets from KTM to STL every day.

  • Play around with filters to find the ideal journey for you. To see the 'Best,' 'Cheapest' or 'Fastest' flights from Tribhuvan International Airport to Lambert-St. Louis International Airport, use the 'Sort by' function. You can also filter results by airline, arrival and departure times, and journey duration.

Handy information about Tribhuvan International Airport (KTM)

  • Tribhuvan International Airport is approximately 5 kilometres from central Kathmandu. If you're ride-sharing, catching a cab or driving from the center, it'll take you 16 minutes or so to get there, depending on the traffic.

  • Got an early flight from Tribhuvan International Airport to Lambert-St. Louis International Airport? Avoid rushing to the terminal (and catch some extra z's) by picking one of these stays close to KTM:

Arriving at Lambert-St. Louis International Airport (STL)

Getting from Lambert-St. Louis International Airport (STL) to central St Louis

  • From Lambert-St. Louis International Airport, St Louis is approximately 26 kilometres away. It takes around 21 minutes to reach the center driving.

  • Traveling on public transport typically takes 36 minutes.

When to fly to Lambert-St. Louis International Airport (STL)

  • It's time to pick your trip dates for your flight from Tribhuvan International Airport to Lambert-St. Louis International Airport. July is the busiest month to visit St Louis. If you want a more relaxed vibe, go in April.

  • The warmest month in St Louis is July, with temperatures ranging between 17ºC and 33ºC. Book your flights from Tribhuvan International Airport to Lambert-St. Louis International Airport in this month if you enjoy this type of weather.

  • Search for cheap flight tickets from KTM to STL in January if you want to travel in cooler conditions. Temperatures are at their lowest then, ranging between -8ºC and 7ºC on average.

More about St Louis

  • When it comes to looking for somewhere to rest your head, you can find the best stays in St Louis right here. Check out these hotels after you've booked your flight from KTM to STL:

  • The Gateway Arch and Forest Park are just a couple of the popular attractions to put on your St Louis travel itinerary. Keep the adventure rolling by checking out St. Louis Zoo.

Complete your St Louis trip with hotels and a car rental

  • We've got more party tricks up our sleeve than just comparing flights. After booking your cheap ticket to Lambert-St. Louis International Airport, browse our car rental offers that'll give you the freedom and flexibility to travel around at your own pace. Next, take a look at our exclusive rates for hotels to find the ideal St Louis stay.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.