Cheap Flights from Southampton (SOU) to Kathmandu (KTM)

Compare Southampton 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 Southampton Airport to Kathmandu Airport

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

Southampton to Kathmandu: Alternative routes

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

Southampton to Kathmandu: Flight information

The things to know before you go.
Cheapest flight found£1,138
Cheapest month to flyMarch

Finding cheap flights from Southampton to Kathmandu: Frequently asked questions

The best price we found for a return flight from Southampton to Kathmandu is £1,138. 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 Southampton to Kathmandu. But we found flights with one or more stops from £1,138.
As of March 2026, there are no flights flying from Southampton to Kathmandu.
The cheapest month to fly from Southampton to Kathmandu is usually March.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Southampton Airport to Kathmandu Airport on Sunday, 22 March 2026.
No airlines currently offer direct flights between Southampton Airport 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.
Currently, KLM offers the cheapest flight tickets to Kathmandu.

Travelling from Southampton Airport (SOU) to Tribhuvan International Airport (KTM): what you need to know

  • The timezone in Kathmandu is UTC+5:47, which is five hours 47 minutes ahead of Southampton.

  • Give yourself enough time to make your SOU to KTM flight. As a rule of thumb, arrive at least two hours before international departures and an hour ahead for domestic flights.

  • You'll likely experience longer queues during popular months like August. Arriving up to four hours in advance for international flights and two hours for a domestic departure is a good idea.

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

  • £453 is the lowest price for a one-way Southampton Airport to Tribhuvan International Airport flight. A return flight starts at £1,138. These prices may change depending on demand and availability.

  • It's a good idea to book early if you're looking for cheap tickets from SOU to KTM. That's because flight prices are based on demand, which tends to increase closer to departure.

  • Getting cheap flights from Southampton Airport to Tribhuvan International Airport is more likely if you can be flexible with your trip dates. Use the 'Whole month' search function to see the best prices across the month and land a great deal.

  • Getting your hands on cheap flights from SOU to KTM is a piece of cake with Price Alerts. All you need to do is create one of these automatic alerts and we'll get in touch as soon as a new deal comes up.

  • Tailor your flights using filters. Pick your ideal departure and arrival times, total journey duration and airlines. You can also sort results by 'Cheapest,' 'Fastest' or 'Best' flights from Southampton Airport to Tribhuvan International Airport.

Handy information about Southampton Airport (SOU)

  • 55.7% of flights taking off from Southampton Airport arrive at their destination on schedule.

  • Central Southampton to Southampton Airport is approximately 5 miles. Depending on traffic, it'll take about 20 minutes to get there if you're ride-sharing, catching a cab or driving.

  • You can expect a trip time of around 25 minutes on public transport.

  • Need a handy hotel near SOU? If you're catching an early flight from Southampton Airport to Tribhuvan International Airport, these stays will have you moments from check-in:

Arriving at Tribhuvan International Airport (KTM)

  • If you have a late Southampton Airport to Tribhuvan International Airport flight, few things beat the convenience of being near the terminal. Grab your bags from the carousel and then be showered and relaxing not long after at one of these options near KTM:

  • Grab a Tribhuvan International Airport rental car and explore parts of Kathmandu that aren't in every guidebook. Find your perfect set of wheels with Spark Car.

  • For the lowest price, reserve your ride from Tribhuvan International Airport around one week before your trip.

Getting from Tribhuvan International Airport (KTM) to central Kathmandu

  • Tribhuvan International Airport to the centre of Kathmandu has a drive time of around 15 minutes. It's approximately 3 miles away.

When to fly to Tribhuvan International Airport (KTM)

  • It's time to pick your trip dates for your flight from Southampton Airport to Tribhuvan International Airport. September is the busiest month to head to Kathmandu. If you'd like a more laid-back vibe, go in February.

  • The warmest month in Kathmandu is June, with temperatures ranging between 17ºC (63ºF) and 28ºC (82ºF). Lock in your flights from Southampton Airport to Tribhuvan International Airport in this month if you enjoy this type of weather.

  • January sees average temperatures of between 3ºC (37ºF) and 18ºC (64ºF). Search for cheap tickets from SOU to KTM sometime then if you like travelling in cooler conditions.

Explore more of Nepal

  • You've seen Kathmandu, now it's time to discover other corners of Nepal. Travel around 90 miles north-west to Pokhara to check off its leading attractions. From Phewa Lake to Sarangkot and Gupteshwor Mahadev Cave, there's plenty to keep you busy.

  • Around 4 miles south of Kathmandu, Patan is another essential stop in Nepal. Experience the best of this destination with a visit to Aspur Agro Farm, Pimbahaa Pukhoo and Rajib Handicraft.

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