$425 Flights from Philadelphia (PHLA) to Kathmandu (KTM)

Your route at a glance

Cheapest deal$1,044
Cheapest monthFebruary
Most popular airlineQatar Airways

Compare Philadelphia to Kathmandu flight deals

Find the cheapest month or even day of the year to fly to Kathmandu

Book the best Kathmandu fare with no extra fees

Flight deals from Philadelphia to Kathmandu Airport

Looking for a cheap last-minute deal or the best round-trip flight from Philadelphia to Kathmandu? Find the lowest prices on one-way and round-trip tickets right here.

Find the cheapest month to fly from Philadelphia to Kathmandu

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

Philadelphia to Kathmandu: Alternative routes

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

Finding cheap flights from Philadelphia to Kathmandu: Frequently asked questions

The best price we found for a round-trip flight from Philadelphia to Kathmandu is $1,044. 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 Philadelphia to Kathmandu. But we found flights with one stop from $1,044.
There are no flights flying from Philadelphia to Kathmandu, as of December 2025.
The cheapest month to fly from Philadelphia to Kathmandu is usually February.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Philadelphia to Kathmandu Airport on Thursday, February 19, 2026.
No airlines currently offer direct flights between Philadelphia and Kathmandu 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 Kathmandu 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 Kathmandu is around 40 days in advance, so don’t leave your flight to the last minute.
The cheapest airline that flies to Kathmandu is Qatar Airways.

Traveling from Philadelphia to Tribhuvan International Airport (KTM): What you need to know

  • Planning your vacation begins with working out where you'll leave from in Philadelphia. Philadelphia International Airport (PHL) is the city's main base, so explore your options for booking a flight from Philadelphia to Tribhuvan International Airport (KTM) jetting off from here.

  • Kathmandu is nine hours 48 minutes ahead of Philadelphia. Tribhuvan International Airport is located in Kathmandu, which operates on the UTC+5:47 timezone.

  • To ensure you catch your flight from Philadelphia to KTM, allow plenty of time to navigate the airport and find your gate. Turning up two hours ahead of international departures and an hour before domestic flights is the standard rule.

  • With more travelers during high season, it's wise to get to your terminal even earlier. Two hours for domestic flights and up to four for international journeys will allow for extra wait times.

Airports in Philadelphia

Philadelphia International Airport (PHL)

  • Whether you're hoping to explore a new city along the way or just have a break, we make it easy to book a flight with a stopover. To compare your options taking off from Philadelphia International Airport (PHL), uncheck 'Direct flights only.' Hamad International Airport (DOH) is a stop you can make when searching for cheap flights from Philadelphia to KTM.

  • Traveling from central Philadelphia to PHL takes about 45 minutes by public transport. If you drive, ride-share or get a cab, you'll cover the 12 miles in 15 minutes or so, depending on traffic.

  • Booked an early flight from Philadelphia to Tribhuvan International Airport? Avoid the stress of rushing to the terminal (and sneak in some bonus sleep) by staying at one of these stays close to Philadelphia International Airport:

  • When it comes to Philadelphia International Airport's on-time performance, 78.93% of flights arrive within the expected time frame.

  • You'll find PHL at 8500 Essington Ave.

Trenton-Mercer Airport (TTN)

  • On public transport, you can travel from central Philadelphia to TTN in around 1 hour 45 minutes. The terminal is roughly 35 miles away, and getting there by car takes approximately 40 minutes.

  • Want to treat yourself to an extra night away before boarding your Philadelphia to KTM flight? Relax in a hotel near Trenton-Mercer Airport before your adventure officially starts. These stays are calling your name:

  • Trenton-Mercer Airport has a strong track record for reliability and timeliness. 82.45% of flights out of here meet their scheduled arrival times without fail.

  • TTN is located at Scotch Road, Terminal Building.

About Tribhuvan International Airport (KTM)

  • Have a late flight from Philadelphia to Tribhuvan International Airport? Don't let your travel day stretch into tomorrow. Check in to one of these hotels near KTM and turn out the lights sooner:

  • Drive into your next adventure with a Tribhuvan International Airport rental car. Pick up a set of wheels from Spark Car to explore parts of Kathmandu that most tourists miss.

  • Lock in the best deal by booking your vehicle around one week before your Philadelphia to Tribhuvan International Airport flight.

How to find the cheapest flights from Philadelphia to Tribhuvan International Airport (KTM)

  • $425 is the best price for a one-way ticket from Philadelphia to Tribhuvan International Airport. Return flights start from $1,044. These prices can change based on availability and demand.

  • Don't leave everything to the last moment. You're more likely to find cheap flights from Philadelphia to KTM if you book early. Airlines often have some great early bird deals.

  • Affordable Philadelphia to Tribhuvan International Airport tickets are easier to find when you have flexibility in your schedule. Try using the 'Whole month' search tool to compare fares across each month and then choose the cheapest day.

  • Locking in a cheap plane ticket from Philadelphia to KTM couldn't be easier with Price Alerts. All you need to do is create one of these automatic alerts and we'll get in touch as soon as there's a price drop.

  • Filters make it easier to find a bargain for your flight from Philadelphia to Tribhuvan International Airport. Choose the departure times, carriers and stops that match your plans. Then sort the results by 'Cheapest' to find the most affordable option fast.

The best time to fly from Philadelphia to Tribhuvan International Airport (KTM)

  • October is the busiest month for flights from Philadelphia to Tribhuvan International Airport (KTM). Visit Kathmandu in February if you'd rather be there when it's quieter.

  • Lock in a Philadelphia to KTM plane ticket departing in June if you want to visit the city during its warmest month. You can expect temperatures in Kathmandu to range from 63ºF to 82ºF.

  • If you'd rather travel in cooler conditions, search for a cheap ticket from Philadelphia to Tribhuvan International Airport in January when temperatures are between 37ºF and 64ºF.

More about Kathmandu

  • Once you've booked your flight from Philadelphia to Tribhuvan International Airport, find a hotel that keeps you close to what you want to see. Make one of these accommodation options your base for exploring Kathmandu:

  • Kathmandu Durbar Square and Annapurna Base Camp Trek are just a couple of the popular attractions to put on your Kathmandu itinerary. Keep the sightseeing going at Himalaya Discovery.

Explore more of Nepal

  • Pokhara is just one of the many cities in Nepal waiting to be discovered once you've taken in the sights of Kathmandu. Around 90 miles away to the north-west, popular attractions include Viewpoint, Pokhara Lakeside and Sarangkot sunrise pokhara.

  • Around 150 miles south-east of Kathmandu, Biratnagar is another favorite stop in Nepal. Experience major highlights starting with Haleshi Mahadev Mandir, Birateshwor Shiva Temple and Shiva Mandir.

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