$305 Find Cheap Flights from Bangkok to Kathmandu – Compare and Save

Among airlines operating Bangkok Suvarnabhumi Airport to Kathmandu flights:

• Thai Airways: offers free seat selection
• Nepal Airlines: offers free seat selection

Extra legroom and free seat selection availability depends on fare class and route.

3 airlines operate flights between Bangkok Suvarnabhumi Airport and Kathmandu. The airlines offering direct flights on this route include:

• Thai Airways
• Nepal Airlines
• Himalaya Airlines

Flights from Bangkok Suvarnabhumi Airport to Kathmandu usually depart from Bangkok Suvarnabhumi (BKK) and arrive at Kathmandu Tribhuvan (KTM).

Here are some options for this route, based on selected ticket types and cabin classes:

• Thai Airways: a cabin bag and a checked bag in Economy class
• Nepal Airlines: a cabin bag and a checked bag in Economy class

Bag allowance can vary by ticket type, cabin class, route, and airline, so travellers should check the fare details before booking.

Only Economy class is available on flights from Bangkok Suvarnabhumi Airport to Kathmandu.

On this route, direct flights are cheaper than stopover options on average. Direct fares average $636 return, compared with $707 via a stopover through New Delhi Indira Gandhi Intl (DEL).

There is no standard. Checked bag policies vary by airline on this route. Most carriers charge $38–$81 for the first checked bag in Economy. Premium fares and elite status bookings typically include a free checked bag.

The Airbus A320-100/200 family is used most often on this route, operated mainly by Thai Airways and Nepal Airlines. Other aircraft seen on the route include Boeing 737-800 variants.

Most connecting flights from Bangkok Suvarnabhumi Airport to Kathmandu pass through New Delhi Indira Gandhi Intl (DEL), which handles 100% of one-stop traffic on this route. Other stopover airports each see under 5%.

Yes. Being flexible with your travel dates can save you up to 8% on the Bangkok Suvarnabhumi Airport to Kathmandu route. Monday is the cheapest departure day at $609 return on average, while Sunday is the most expensive at $659, a difference of $50. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the Bangkok Suvarnabhumi Airport to Kathmandu route, 27% of flights were delayed in the past 3 months, with delays averaging 1 hour 53 minutes.

Morning is the busiest departure period on Bangkok Suvarnabhumi Airport to Kathmandu flights, with 50% leaving in that window. Night departures account for 50%, Afternoon flights for 0%, and Evening flights for 0%.

Garden of Dreams is one of the most viewed places in Kathmandu on KAYAK.

These are the earliest and latest flight times available from Bangkok Suvarnabhumi Airport to Kathmandu:

• Earliest: departs at 10:15 and lands at 13:41
• Latest: departs at 21:15 and lands at 00:41.

The flight takes about 3h 26m.

Last-minute fares on this route (booked within 2 weeks of departure) run 4% above the route average of $633. Book 10 weeks before departure for the lowest fares.

A direct flight from Bangkok Suvarnabhumi Airport to Kathmandu takes 3h 26m, covering 3,585 km.

Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

Yes. Based on fares seen in the past 5 days, return flight prices on this route showed a wide range, from about $555 to $3,958. That means the highest observed fare was about 7x higher than the lowest one.

One-way fares from Bangkok Suvarnabhumi Airport to Kathmandu are currently higher than usual. Average one-way flight prices are about $378, which is 12% above the typical average for this route.

Evening flights have the fewest delays on this route. Delays tend to pile up throughout the day as one late flight pushes the next, so earlier departures are usually more reliable.

Kathmandu is 1 hour behind Bangkok Suvarnabhumi Airport (Nepal Time vs Indochina Time). Plan for the time shift when scheduling connections or first-day activities.

Return flights from Bangkok Suvarnabhumi Airport to Kathmandu range from $580 to $710, with an average of $633 over the past 12 months. Anything below $580 counts as a good deal.