BKK - KTM

$222 Find Cheap Flights from Bangkok to Kathmandu - Compare and Save

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Everything you should know

Cheapest round-trip
$367
Typical prices: $435-$545
Thai Airways
Tue 5/8Tue 5/15
BKK - KTM • Non-stop
Cheapest one-way
$222
Typical prices: $233-$301
Nepal Airlines
Fri 11/23
BKK - KTM • Non-stop
Nonstop flights
You can fly direct with Thai Airways, Nepal Airlines and Himalaya Airlines. Average duration is 3h 26m
Direct flights
+1
Direct flights
+1
Avoid delays
Most punctual • 81% on-time
Best time • Fewest delays
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 10 weeks in advance save around 15% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 8% price drop
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Cheapest • Avg $573 (round-trip)
Shortest trip • 22h 45m (one-way)
Insights
Insights
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We hope you love your trip to Kathmandu!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Bangkok to Kathmandu (BKK-KTM)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Bangkok to Kathmandu

Sat, May 8 - Sat, May 15
Thai Airways Logo
10:15 am - 12:25 pmBKK  Bangkok Suvarnabhumi-KTM Kathmandu Tribhuvan
3h 25mnonstop
Thai Airways Logo
1:30 pm - 6:15 pmKTM  Kathmandu Tribhuvan-BKK Bangkok Suvarnabhumi
3h 30mnonstop
$367Thai Airways
Mon, Dec 21 - Mon, Dec 28
Nepal Airlines Logo
4:45 pm - 7:00 pmBKK  Bangkok Suvarnabhumi-KTM Kathmandu Tribhuvan
3h 30mnonstop
Nepal Airlines Logo
11:10 am - 3:45 pmKTM  Kathmandu Tribhuvan-BKK Bangkok Suvarnabhumi
3h 20mnonstop
$400Nepal Airlines
Mon, Jan 11 - Fri, Jan 15
China Southern Logo
3:05 pm - 11:30 amBKK  Bangkok Suvarnabhumi-KTM Kathmandu Tribhuvan
21h 40m1 stop Guangzhou Baiyun
China Southern Logo
12:30 pm - 10:30 pmKTM  Kathmandu Tribhuvan-BKK Bangkok Suvarnabhumi
8h 45m1 stop Guangzhou Baiyun
$421China Southern
Sun, Feb 14 - Wed, Feb 17
Multiple Airlines Logo
11:25 am - 11:30 pmBKK  Bangkok Suvarnabhumi-KTM Kathmandu Tribhuvan
13h 20m1 stop Guangzhou Baiyun
Multiple Airlines Logo
1:40 pm - 12:35 pmKTM  Kathmandu Tribhuvan-BKK Bangkok Suvarnabhumi
21h 40m1 stop Colombo Bandaranaike Intl
$423Multiple Airlines
Sun, Feb 14 - Wed, Feb 17
Multiple Airlines Logo
11:25 am - 11:30 pmBKK  Bangkok Suvarnabhumi-KTM Kathmandu Tribhuvan
13h 20m1 stop Guangzhou Baiyun
Multiple Airlines Logo
1:40 pm - 12:35 pmKTM  Kathmandu Tribhuvan-BKK Bangkok Suvarnabhumi
21h 40m1 stop Colombo Bandaranaike Intl
$424Multiple Airlines
Sat, Dec 12 - Fri, Dec 18
Thai Airways Logo
10:15 am - 12:25 pmBKK  Bangkok Suvarnabhumi-KTM Kathmandu Tribhuvan
3h 25mnonstop
Thai Airways Logo
12:25 am - 5:10 amKTM  Kathmandu Tribhuvan-BKK Bangkok Suvarnabhumi
3h 30mnonstop
$434Thai Airways
Mon, Dec 7 - Mon, Dec 14
Nepal Airlines Logo
4:45 pm - 7:00 pmBKK  Bangkok Suvarnabhumi-KTM Kathmandu Tribhuvan
3h 30mnonstop
Nepal Airlines Logo
11:10 am - 3:45 pmKTM  Kathmandu Tribhuvan-BKK Bangkok Suvarnabhumi
3h 20mnonstop
$436Nepal Airlines
Mon, Jan 11 - Fri, Jan 15
Nepal Airlines Logo
4:45 pm - 7:00 pmBKK  Bangkok Suvarnabhumi-KTM Kathmandu Tribhuvan
3h 30mnonstop
Nepal Airlines Logo
11:10 am - 3:45 pmKTM  Kathmandu Tribhuvan-BKK Bangkok Suvarnabhumi
3h 20mnonstop
$441Nepal Airlines
Mon, Dec 14 - Thu, Dec 17
Thai Airways Logo
9:15 pm - 11:25 pmBKK  Bangkok Suvarnabhumi-KTM Kathmandu Tribhuvan
3h 25mnonstop
Thai Airways Logo
1:30 pm - 6:15 pmKTM  Kathmandu Tribhuvan-BKK Bangkok Suvarnabhumi
3h 30mnonstop
$442Thai Airways
Sun, Feb 14 - Wed, Feb 17
Thai Airways Logo
10:15 am - 12:25 pmBKK  Bangkok Suvarnabhumi-KTM Kathmandu Tribhuvan
3h 25mnonstop
Thai Airways Logo
1:30 pm - 6:15 pmKTM  Kathmandu Tribhuvan-BKK Bangkok Suvarnabhumi
3h 30mnonstop
$445Thai Airways
Booking Insights

Price, demand and travel trends for Bangkok Suvarnabhumi Airport to Kathmandu flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

How much is a round-trip flight from Bangkok Suvarnabhumi Airport to Kathmandu?

Round-trip flights from Bangkok Suvarnabhumi Airport to Kathmandu typically range from $435 to $545. The lowest price found in the past 5 days was $367, on Thai Airways.

What's the cheapest day of the week to fly from Bangkok Suvarnabhumi Airport to Kathmandu?

Based on deals KAYAK users found in the last 12 months, Friday is the cheapest day of the week to fly from Bangkok Suvarnabhumi Airport to Kathmandu. It’s 3% cheaper than the average day, while Sunday is the most expensive, with prices 3% higher.

What’s the cheapest month to fly from Bangkok Suvarnabhumi Airport to Kathmandu?

•June is the cheapest month to fly from Bangkok Suvarnabhumi Airport to Kathmandu at $430 round-trip.
•November ($554) and October ($552) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 28% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from Bangkok Suvarnabhumi Airport to Kathmandu the cheapest?

Flights from Bangkok Suvarnabhumi Airport to Kathmandu are cheapest 10 weeks before departure. Booking in this window typically costs about 15% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Expert advice

Expert advice for your flight from Bangkok to Kathmandu

 
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Duncan Madden

Duncan Madden

Expert on BKK

Duncan is a freelance travel writer, copywriter and book author in constant search of travel stories and the perpetual sensation of being on holiday. He’s never happier than when on a dusty trail in search of empty waves or ducking under the piste tape in search of snowbound solitude. British born, living in Germany, but happiest heading for the horizon. His first book, Found in Translation, explores the etymologies and stories of country names around the world and is out now.

Daniel Scheffler

Daniel Scheffler

Expert on KTM

Daniel Scheffler is a travel writer, podcaster, and producer. Born in Africa, bred in Europe and now living in America he has traveled to 140 countries (and all 50 U.S. states). Plus he has stayed at over 2500 hotels across the globe. His original shows Everywhere and Without Maps (available on Spotify) showcase his beliefs, travel is about humanity and sharing that beauty. And thus it reminds you that you shouldn’t believe everything you think.

Key details for Bangkok Suvarnabhumi Airport to Kathmandu flights

Low season

July

Cheapest flight

$222
Beat the crowds with an average 35% drop in travelers.
The most popular month to fly with an average 36% increase in travelers.
One-way flight from Bangkok Suvarnabhumi Airport to Kathmandu

When to book flights from Bangkok to Kathmandu

Are your dates flexible? Find out the best times to travel from Bangkok to Kathmandu based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Bangkok Suvarnabhumi Airport to Kathmandu flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What are the earliest and latest flights from Bangkok Suvarnabhumi Airport to Kathmandu?

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

    • Earliest: departs at 10:15 am and lands at 1:41 pm
    • Latest: departs at 9:15 pm and lands at 12:41 am.

    The flight takes about 3h 26m.

  • What cabin classes can I book on flights from Bangkok Suvarnabhumi Airport to Kathmandu?

    Three cabin classes are available on flights from Bangkok Suvarnabhumi Airport to Kathmandu:

    • Economy Class
    • Premium Economy Class
    • Business Class

  • How long is a flight from Bangkok Suvarnabhumi Airport to Kathmandu?

    A nonstop flight from Bangkok Suvarnabhumi Airport to Kathmandu takes 3h 26m, covering 1,384 miles.

  • Do I need a passport to fly from Bangkok Suvarnabhumi Airport to Kathmandu?

    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.

  • How much should I expect to pay for a Bangkok Suvarnabhumi Airport to Kathmandu flight?

    Round-trip flights from Bangkok Suvarnabhumi Airport to Kathmandu range from $435 to $545, with an average of $465 over the past 12 months. Anything below $435 counts as a good deal.

  • How expensive are last-minute Bangkok Suvarnabhumi Airport to Kathmandu flights?

    Last-minute fares on this route (booked within two weeks of departure) run 5% above the $465 route average. Book 10 weeks before departure for the lowest fares.

  • How much can I save by taking a layover when flying from Bangkok Suvarnabhumi Airport to Kathmandu?

    On this route, nonstop flights are cheaper than layover options on average. Nonstop fares average $465 round-trip, compared to $573 via a layover through New Delhi Indira Gandhi Intl (DEL).

  • What is the standard checked-bag allowance on flights from Bangkok Suvarnabhumi Airport to Kathmandu?

    There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $38–$58 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

  • Which aircraft model is used most often on flights from Bangkok Suvarnabhumi Airport to Kathmandu?

    The Airbus A330-300 family is used most often on this route, operated mainly by Thai Airways. Other aircraft seen on the route include Airbus A320-100/200 variants.

  • How are flight departures from Bangkok Suvarnabhumi Airport to Kathmandu spread across the day?

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

  • Have flight prices from Bangkok Suvarnabhumi Airport to Kathmandu changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $367 to $2,210. That means the highest observed fare was about 6x higher than the lowest one.

  • How are flight prices from Bangkok Suvarnabhumi Airport to Kathmandu looking right now?

    One-way fares from Bangkok Suvarnabhumi Airport to Kathmandu are currently lower than usual. Average one-way flight prices are about $228, which is 8% below the typical average for this route.

  • Which airports can I use when flying from Bangkok Suvarnabhumi Airport to Kathmandu?

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

  • What time of day has the fewest delays on flights from Bangkok Suvarnabhumi Airport to Kathmandu?

    Evening flights have the fewest delays on this route, while afternoon departures tend to have the most.

  • At what point is a flight considered delayed from Bangkok Suvarnabhumi Airport to Kathmandu?

    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, 26% of flights were delayed in the past 3 months, with delays averaging 1h 49m.

  • Which airports do connecting flights from Bangkok Suvarnabhumi Airport to Kathmandu pass through?

    Connecting flights from Bangkok Suvarnabhumi Airport to Kathmandu most commonly pass through:

    • New Delhi Indira Gandhi Intl (DEL) - 86% of one-stop connections
    • Dhaka Hazrat Shahjalal Intl (DAC) - 14% of one-stop connections

  • Can I save money by using flexible dates for flights from Bangkok Suvarnabhumi Airport to Kathmandu?

    Yes. Flexible dates can save you up to 6% on flights from Bangkok Suvarnabhumi Airport to Kathmandu. Friday is the cheapest departure day at $455 round-trip on average, while Sunday is the most expensive at $483, a difference of $28.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What airlines fly from Bangkok Suvarnabhumi Airport to Kathmandu?

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

    • Thai Airways
    • Nepal Airlines
    • Himalaya Airlines

  • How much time can I save by choosing a different layover airport from Bangkok Suvarnabhumi Airport to Kathmandu?

    Flying via New Delhi Indira Gandhi Intl (DEL) gives the shortest average 1-stop total travel time at 11h 25m, compared with 22h 45m via Dhaka Hazrat Shahjalal Intl (DAC).

  • What is the time difference between Bangkok Suvarnabhumi Airport and Kathmandu?

    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.

  • What popular places can I visit in Kathmandu?

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

  • Which airlines offer extra legroom and free seat selection on Bangkok Suvarnabhumi Airport to Kathmandu flights?

    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.

  • Which airlines include bags at no extra cost on Bangkok Suvarnabhumi Airport to Kathmandu flights?

    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 always check the fare details before booking.

  • Will I need a visa to go to Kathmandu (KTM)?

    Yes, a visa is mandatory for US citizens to be allowed into the country. You can either get your visa by applying via the Nepalese Consulate or Embassy beforehand and getting approval before embarking on your journey or purchase a tourist visa upon arrival at Tribhuvan International Airport in Kathmandu. Other legal documents required for travel include your passport which must have six months or more validity remaining at the time of entry.

  • What are the transfer options from Tribhuvan International Airport to the city center?

    When transferring from KTM Airport, you can either take a taxi or use the bus service. A taxi is arguably the best option for foreigners since the drivers are very polite and will drop you off at your preferred location in the city. However, taxis are relatively costly and not ideal if you’re traveling on a budget. The cost-effective option would be using the bus service which can be accessed directly outside the airport terminal. It is worth noting that the bus service runs infrequently so be sure to check the schedule to avoid long wait times.

  • Which airlines have a good sustainability record?

    Of the airlines serving this route, Malaysia Airlines has the best sustainability record. While they haven’t yet started the use of sustainable aviation fuel, the airline is in the process of ordering new aircraft which are supposed to be more lightweight and fuel-efficient helping reduce the carbon emissions produced during every flight. As a passenger, you can also play your part by packing light to reduce weight and opting for nonstop flights to reduce your carbon footprint.

  • What are the advantages of upgrading to first class for this route?

    Upgrading to first class comes with plenty of advantages although the specific details depend on each individual airline. For instance, with Malaysia Airlines, First Class passengers get a recliner seat and extra legroom for added comfort as well as a better selection of meals and drinks to be enjoyed onboard. You also get an extra baggage allowance and access to the airline lounges during layovers.

Your guide to booking Bangkok Suvarnabhumi Airport to Kathmandu flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Friday departure and avoid flying on Sunday. On this route, Friday flights average $455, about $28 less than Sunday fares (6% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 10 weeks before you fly. On this route, that window historically saves about 15% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Bangkok Suvarnabhumi Airport to Kathmandu trip for June. Fares historically average $430 round-trip in that month - typically $124 less than the most expensive month, which is November (based on the last 12 months).
  • For the best chance of arriving on time, fly with Thai Airways. Over the past three months, 81% of Thai Airways flights from Bangkok Suvarnabhumi Airport to Kathmandu arrived on time, slightly above the route average of 74%. When flights on this route arrive late, they're delayed by an average of 1h 49m, so choosing an airline with strong on-time performance can make a difference if you're on a tight schedule.
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Kathmandu Tribhuvan Airport.

    • The Dwarika's
    • Vannasut Hotel and Spa
    • The Everest Hotel Kathmandu
  • Thai Lion Air has the best baggage allowance for economy-class passengers so keep that in mind when booking your flight. They allow a carry-on and one checked bag for free unlike most other airlines serving this route which only have an allowance for the carry-on bag.
  • Bangkok is served by two major airports Suvarnabhumi Airport (BKK) and Don Mueang International Airport (DMK), both of which offer connections to Kathmandu. BKK is the main international airport in the city offering more connections to a range of different destinations compared to DMK. It is also worth pointing out that DMK doesn’t have nonstop flights and therefore not a good choice if you’re looking to avoid layovers.
  • When flying out of Don Mueang International Airport, Thai Lion Air is a good option to take since they have their main hub at this airport and therefore have more flight options compared to any other airline.
  • Air Asia is the only airline on this route that has onboard Wi-Fi. Although it is behind a paywall, it makes them a good option for business travelers.
  • When booking a solo ticket for your child, Malaysian Airlines is the best option. They have an unaccompanied minor service which is available for children between ages 5 and 15 ensuring that your child is taken care of for the entire trip.

Prefer to fly direct from Bangkok to Kathmandu?

 
Find which airlines fly direct from Bangkok Suvarnabhumi Airport to Kathmandu Tribhuvan Airport, which days they fly and book direct flights.

Direct departures

Bangkok Suvarnabhumi to Kathmandu Tribhuvan

Monday

Nepal Airlines,Thai Airways

Nepal Airlines,Thai Airways

Tuesday

Thai Airways

Thai Airways

Wednesday

Thai Airways

Thai Airways

Thursday

Thai Airways

Thai Airways

Friday

Nepal Airlines,Thai Airways

Nepal Airlines,Thai Airways

Saturday

Thai Airways

Thai Airways

Sunday

Thai Airways

Thai Airways

See more direct flights

Direct returns

Kathmandu Tribhuvan to Bangkok Suvarnabhumi

Monday

Nepal Airlines,Thai Airways

Nepal Airlines,Thai Airways

Tuesday

Thai Airways

Thai Airways

Wednesday

Thai Airways

Thai Airways

Thursday

Thai Airways

Thai Airways

Friday

Nepal Airlines,Thai Airways

Nepal Airlines,Thai Airways

Saturday

Thai Airways

Thai Airways

Sunday

Thai Airways

Thai Airways

See more direct flights

More options for your flight from Bangkok to Kathmandu

Complete your trip to Kathmandu with a hotel stay or car rental