Cheap flights from St. Louis to Kathmandu from $640
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Kathmandu departing on 8/26. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from St. Louis to Kathmandu
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
Air India flights from St. Louis to Kathmandu
Our best Air India deals on St. Louis to Kathmandu flight tickets
Qatar Airways flights from St. Louis to Kathmandu
Our best Qatar Airways deals on St. Louis to Kathmandu flight tickets
See travel insights to Kathmandu from
How to get the cheapest flight ticket from St. Louis to Kathmandu
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Kathmandu?
The month of February is another great option to travel to Kathmandu, with average flight prices from St. Louis averaging around $1,212.
What is the cheapest day to depart on your flight to Kathmandu?
According to our data, Saturday is the cheapest day to fly to Kathmandu from St. Louis. The lowest ticket price found for a Saturday departure recently was $1,415. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Flights from St. Louis to Kathmandu on a Thursday will generally be more expensive and average around $1,655. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.
What is the cheapest time of day to depart on your flight to Kathmandu?
In the afternoon is the cheapest time of day to fly from St. Louis to Kathmandu when you can find flight prices for as low as $1,515. Flying to Kathmandu in the afternoon is an ideal time because this is during off-peak travel hours. Flights at noon are often more expensive with an average ticket price of $1,593.
How far in advance should I book a flight to Kathmandu?
You are more likely to see cheaper flights to Kathmandu from St. Louis when booking 26 weeks ahead of your departure date. In general, you can expect to find flights to Kathmandu for around $1,628 when searching 26 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Kathmandu from St. Louis for as low as $1,211 on momondo.
When to book flights from St. Louis to Kathmandu
Cheap St. Louis to Kathmandu (STL to KTM) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from St. Louis to Kathmandu
How far is Lambert-St Louis to Kathmandu Tribhuvan by plane?
Kathmandu Tribhuvan is 7838.3 mi away from Lambert-St Louis. Typically, this will take 25h 20m by plane in normal conditions.
When did momondo last update prices for flights from Lambert-St Louis Airport to Kathmandu Tribhuvan Airport?
Prices for flights from Lambert-St Louis Airport to Kathmandu Tribhuvan Airport were last updated today.
How many operators does momondo search for flights from Lambert-St Louis Airport to Kathmandu Tribhuvan Airport?
There are 2 operators available for flights from Lambert-St Louis Airport to Kathmandu Tribhuvan Airport as of June 2025.
How old do you have to be to fly from Lambert-St Louis Airport to Kathmandu Tribhuvan Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Lambert-St Louis Airport to Kathmandu Tribhuvan Airport.
What documentation or ID do you need to fly to Kathmandu Tribhuvan Airport?
The necessary travel and health documents for your Kathmandu Tribhuvan Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from St. Louis to Kathmandu?
momondo data reveals that the most frequently booked airline on the route from St. Louis to Kathmandu is Qatar Airways, representing 91% of all bookings. The subsequent popular airline is Cathay Pacific at 9%.
Best airlines flying from St. Louis to Kathmandu
Compare and see reviews for airlines that fly from St. Louis to Kathmandu with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $1,076 | Free Cancellation | Rating 7.4 3,584 reviews | |||
| PriceFrom $1,739 | Free Cancellation | Rating 7.5 892 reviews |
Traveling to a place near Kathmandu?
Book flights to Kathmandu if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from St. Louis to Kathmandu?
To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Kathmandu from St. Louis.
Can I find flights from St. Louis to Kathmandu with flexible booking policies on momondo?
momondo does allow users to show only those flights to Kathmandu from St. Louis which offer a flexible booking policy as well as other useful filters and features.
How can momondo help me find flights from St. Louis to Kathmandu?
Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Kathmandu from St. Louis.
I’m not ready to book a flight from St. Louis to Kathmandu right now. Can momondo alert me if prices change?
If you are not ready to book a flight from St. Louis to Kathmandu now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Kathmandu and let you know when they change.