Trivandrum to Kathmandu flight guide — 1-stop routes, airlines, fares, baggage, terminals and Nepal entry for Indians.
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Quick answer: Trivandrum to Kathmandu flights take about ≈ 4–6h total, 1-stop via Bangalore (BLR) or Chennai (MAA); some seasonal non-stops, operated by IndiGo (via BLR/MAA), Air India, Nepal Airlines, No consistent non-stop — 1-stop via Bangalore or Chennai; seasonal charters possible. Indian passport holders should check the visa requirement summarised below. Use the live search above to compare today's cheapest TRV–KTM fare across every airline, OTA and travel agent in one place.
Last reviewed June 2026 by the FlightGPT flights desk · route facts cross-checked against DGCA and the Airports Authority of India (AAI) · fares are live — verify the final price in search before booking.
Looking for cheap flights from Trivandrum to Kathmandu? FlightGPT compares live TRV to KTM fares across every connected source — Indian carriers, Gulf hubs, OTAs and trusted travel agents — and shows the cheapest options side by side. Whether you want a Trivandrum to Kathmandu non-stop tomorrow, a last-minute weekend deal or the lowest price three months out, every active Trivandrum-Kathmandu fare is one search away.
IndiGo is the most practical carrier for this route, with multiple daily TRV–BLR flights and a reliable BLR–KTM service. Air India connects via Bangalore or Delhi, while Nepal Airlines operates KTM-hub flights that can be combined with Indian feeder carriers. Occasionally, charter and seasonal services have operated from Trivandrum directly to Kathmandu for pilgrimage groups — check with local Kerala travel agents around Pashupatinath festival periods. The Bangalore routing offers the shortest layover windows and lowest overall fares in most seasons.
Trekking season (October–November and March–April) is the most popular time to visit Nepal, which pushes both airfares and Kathmandu hotel rates upward. The monsoon months (June–September) see very low fares but cloudy mountain views. As of June 2026, all-in return fares from Trivandrum (with one stop) ranged from ₹12,000–₹26,000 depending on season and lead time. Booking 6–8 weeks before travel during the off-season (December–February or June–August) offers the best deals. November's Tihar and Dashain festival periods see prices spike.
Trivandrum to Bangalore takes approximately 1h 20m, and Bangalore to Kathmandu is roughly 2h 40m, making via-BLR the total best-case flight time around 4 hours plus layover. The Chennai routing is marginally longer in the air but can sometimes offer a better layover schedule. Kathmandu airport sits at 1,338 m elevation in the Bagmati Valley, surrounded by mountains — landings at Tribhuvan International are renowned for their dramatic visual approach; weather-related delays are more common here than at Indian plains airports, especially in monsoon or winter fog.
IndiGo connecting itineraries on international routes to Kathmandu generally include 15 kg checked baggage in base economy. If trekking, you may want to add a bag allowance upfront — the 5 kg increments online (as of June 2026) were significantly cheaper than airport excess charges. Trekking gear (poles, crampons in checked bags, sleeping bags) is fine to pack; oxygen canisters are prohibited in hold or cabin. Nepal Airlines and Buddha Air domestic connections within Nepal have stricter 15 kg limits on their own services.
Thiruvananthapuram International (TRV) has two terminal buildings; international departures use the new integrated passenger terminal. Tribhuvan International Airport (KTM) is Nepal's only international airport, with a single terminal building that can feel cramped during peak trekking season. Arrivals at KTM include a straightforward immigration hall; the visa-on-arrival queue can be long in October — arriving early in the day helps. Pre-paid taxi booths inside arrivals set fixed fares to Thamel (city centre) and other neighbourhoods.
Indian nationals do NOT need a visa to enter Nepal. Entry is permitted on a valid Indian passport, Voter ID card, or Aadhaar card — no prior application required. This makes Nepal one of the simplest international destinations for Indians. There is no limit on length of stay for Indian citizens. While technically no visa is required, carrying your passport is still recommended for smoother check-in with airlines. For other nationalities travelling with you, standard tourist visas are available on arrival. More at /visas.
October and November are Nepal's golden months — post-monsoon skies are crystal clear, the Himalayas shine, and trails on the Annapurna and Everest circuits are in prime condition. March and April offer a second peak with rhododendrons in bloom and good high-altitude visibility. December–February is cold in Kathmandu but manageable, with fewer tourists and low prices. The June–September monsoon wets the hills but keeps them lush; cultural sights in the Kathmandu Valley (Swayambhunath, Boudhanath, Patan) remain wonderful regardless of season.
There is no regular non-stop service. Most flights connect via Bangalore (BLR) on IndiGo, or via Chennai (MAA), making total journey time approximately 4–6 hours.
Via Bangalore, combined flight time is about 4 hours (1h 20m + 2h 40m). Add 1–2 hours for the layover, making total travel time roughly 5–7 hours.
No visa is required for Indian citizens. You can enter Nepal with a valid Indian passport, Voter ID card, or Aadhaar card. There is no limit on length of stay.
IndiGo is the most common choice (via Bangalore). Air India also operates connecting services via Bangalore or Delhi. Nepal Airlines operates from Kathmandu to several Indian cities.
June–August (monsoon) and December–February (cold but clear) offer the lowest fares. Avoid October–November (peak trekking season) and the Dashain/Tihar festival windows for budget travel.
Tribhuvan International (KTM) has a technically challenging approach due to surrounding mountains. All scheduled airlines operating there comply with safety certifications, but weather delays are common — build flexibility into your itinerary.
There is no single "cheapest day" to fly Trivandrum to Kathmandu — the lowest fare is the one you find by comparing live. Open the search above to line up Trivandrum–Kathmandu prices across IndiGo (via BLR/MAA), Air India, Nepal Airlines; booking ahead and avoiding peak weekends typically trims 25–40 percent off the walk-up fare.
Flying Trivandrum to Kathmandu at short notice doesn't always mean overpaying. Off-peak departures and unsold seats on IndiGo (via BLR/MAA), Air India, Nepal Airlines can surface real same-week deals. Put your date into the FlightGPT search above and we'll show every available TRV–KTM fare side by side in seconds.
There is currently no non-stop service between Trivandrum and Kathmandu — itineraries connect via a hub, with a typical journey of ≈ 4–6h total, 1-stop via Bangalore (BLR) or Chennai (MAA); some seasonal non-stops. Comparing hubs side by side often saves 15-30 percent. FlightGPT lets you filter by "Direct only" or compare both side by side — useful when you want the cheapest Trivandrum Kathmandu ticket but are open to a layover.
Trivandrum–Kathmandu pricing rewards comparison over loyalty: the best value rotates between low-cost and full-service carriers depending on the date. FlightGPT's grid surfaces every Trivandrum Kathmandu fare with baggage and meals counted in, so the genuinely cheapest all-in ticket is the one that rises to the top.