The cheapest times to fly from RDU to KTM are

  • January 1st to February 4th
  • March 5th to March 25th
  • late April
  • August 13th to December 9th (except the week of October 8th)

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from RDU to KTM is early to mid September. Prices can be as high as $2830 for Friday flights during late June, or as low as $1009 for Tuesday flights around early to mid September.


When to Fly to Kathmandu

Flying from Raleigh/Durham, NC (RDU) to Kathmandu (KTM) will usually cost between $1053 to $1967 per person if booking more than four weeks in advance. On average the very cheapest time to fly is early to mid September with an average ticket price of $1051. Due to high demand the most expensive time to fly is late June, with an average price of $1820. Planning your trip to low-cost times can easily save you $770 on economy flights and even more on first-class flights. Generally, any price below $1333 can be considered a good price for a round-trip RDU to KTM flight.

See below for a graph of average weekly prices for the RDU to KTM route. All prices are for round-trip tickets in USD.

RDU to KTM Flight Prices

Compared to other flights, the RDU to KTM flight is slightly more expensive than the average and costs slightly more than the average flight leaving from Raleigh. The average price per mile (for a direct flight) is $0.1, which is far below average.


Flight Prices by Day of the Week

Tuesday is usually the cheapest day to fly to KTM, and Monday the cheapest day to fly back into RDU. Fridays are the most expensive days to fly to Kathmandu, and Saturdays are the most expensive days to return to Raleigh. Selecting flights on the least expensive days could save you up to $137 (9%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Tuesday and returning a week later will cost an average of $1336. Return trip prices are from the KTM to RDU flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

Departure Day Prices

Return Trip Prices by Day

Return Day Prices


Nonstop Flights and Layovers

Travelers looking to fly from RDU to KTM can generally find a 2-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 15 hour 15 minutes may not be realistic.


Flight Hacking RDU to KTM

Flight hacking is when you book two tickets instead of a layover, sometimes with different airlines. You will need to either bring only a carry-on bag (highly recommended) or leave yourself plenty of time to go through security again. Flight hacking is completely allowed, but airlines don’t always tell you the cheapest way to get from RDU to KTM — but Champion Traveler does!

Hack #1: New York, NY (RDU > JFK > KTM)

  • Price for both tickets: $1104
  • Average savings: $229 (17.19%)

See RDU to JFK flights

Hack #2: Washington, DC (RDU > IAD > KTM)

  • Price for both tickets: $1171
  • Average savings: $162 (12.16%)

See RDU to IAD flights

Hack #3: Delhi (RDU > DEL > KTM)

  • Price for both tickets: $1173
  • Average savings: $160 (11.97%)

See RDU to DEL flights


Flight Questions Answered

Still have questions about flying from RDU to KTM? We’ve got answers.

Which airlines fly this route?

You can find 28 major airlines flying this route most often: Air Canada, Air China, Air France, Air India, Alaska, American, Austrian, British Airways, Brussels Airlines, Cathay Dragon, Cathay Pacific, China Eastern, China Southern, Delta, Emirates, Etihad, Finnair, Iberia, JetBlue, KLM, Korean Air, Lufthansa, Nepal Airlines, Qatar Airways, SWISS, Tap Air Portugal, Turkish Airlines, United, and potentially more during busy seasons.

How far away is it from Tribhuvan International Airport to Raleigh-Durham International Airport?

The distance between the two airports is roughly 7923 miles or 12751 kilometers.

How long does it take to fly from RDU to KTM?

The real-world flight time for a nonstop RDU to KTM flight is about 15 hour 15 minutes.

How many flights go between Raleigh/Durham, NC and Kathmandu?

It depends on the day of the week and the date, but a typical day might have around 67 available flights from RDU to KTM.


Airport Location Info


Departing Airport

Origination codeRDU
Origination airport nameRaleigh-Durham International Airport
CityRaleigh/Durham, NC
Countrythe United States

Return Airport

Destination codeKTM
Destination airport nameTribhuvan International Airport


Other Resources

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.