KTM - BKK

C$ 310 Find Cheap Flights from Kathmandu to Bangkok – Compare and Save

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Everything you should know

Cheapest round-trip
C$ 551
Typical prices: C$ 479-C$ 610
Air India
Fri 9/2Fri 16/2
KTM - BKK • 1 stop
Cheapest direct flights
C$ 1,099
Typical prices: C$ 479-C$ 613
Thai Airways
Sat 27/10Sun 4/11
KTM - BKK • Direct
Direct flights
You can fly direct with Thai Airways, Nepal Airlines, and Himalaya Airlines. Average duration is 3h 29m
Direct flights
+1
Direct flights
+1
Avoid delays
Most punctual • 76% on-time
Best time • Fewest delays
Insights
Insights
When to book
in advance
Our data shows that travellers who book at least 21 weeks in advance save around 22% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 13% price drop
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Cheapest • Avg C$ 490 (round-trip)
Shortest trip • 10h 07m (one-way)
Insights
Insights
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you enjoy your trip to Bangkok Suvarnabhumi Airport!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Kathmandu to Bangkok (KTM-BKK)

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

Recent round-trip flight deals from Kathmandu to Bangkok

Tue, 9 Feb - Tue, 16 Feb
Air India Logo
7:35 a.m. - 8:45 p.m.KTM  Kathmandu Tribhuvan-BKK Bangkok Suvarnabhumi
11h 55m1 stop New Delhi Indira Gandhi Intl
Air India Logo
10:20 p.m. - 6:35 a.m.BKK  Bangkok Suvarnabhumi-KTM Kathmandu Tribhuvan
9h 30m1 stop New Delhi Indira Gandhi Intl
C$ 551Air India
Mon, 8 Feb - Mon, 15 Feb
Air India Logo
2:55 p.m. - 7:05 a.m.KTM  Kathmandu Tribhuvan-BKK Bangkok Suvarnabhumi
14h 55m1 stop New Delhi Indira Gandhi Intl
Air India Logo
3:10 p.m. - 6:35 a.m.BKK  Bangkok Suvarnabhumi-KTM Kathmandu Tribhuvan
16h 40m1 stop New Delhi Indira Gandhi Intl
C$ 555Air India
Mon, 8 Feb - Mon, 15 Feb
Multiple Airlines Logo
12:50 p.m. - 12:35 p.m.KTM  Kathmandu Tribhuvan-BKK Bangkok Suvarnabhumi
22h 30m1 stop Colombo Bandaranaike Intl
Multiple Airlines Logo
10:15 a.m. - 12:25 p.m.BKK  Bangkok Suvarnabhumi-KTM Kathmandu Tribhuvan
3h 25mdirect
C$ 614Multiple Airlines
Tue, 9 Feb - Tue, 16 Feb
Multiple Airlines Logo
1:30 p.m. - 6:15 p.m.KTM  Kathmandu Tribhuvan-BKK Bangkok Suvarnabhumi
3h 30mdirect
Multiple Airlines Logo
3:10 p.m. - 10:55 p.m.BKK  Bangkok Suvarnabhumi-KTM Kathmandu Tribhuvan
9h 00m1 stop New Delhi Indira Gandhi Intl
C$ 625Multiple Airlines
Wed, 28 Oct - Wed, 4 Nov
Air India Logo
7:35 a.m. - 6:25 p.m.KTM  Kathmandu Tribhuvan-BKK Bangkok Suvarnabhumi
9h 35m1 stop New Delhi Indira Gandhi Intl
Air India Logo
8:05 a.m. - 10:55 p.m.BKK  Bangkok Suvarnabhumi-KTM Kathmandu Tribhuvan
16h 05m1 stop New Delhi Indira Gandhi Intl
C$ 653Air India
Tue, 9 Feb - Tue, 16 Feb
Air India Logo
9:40 p.m. - 2:10 p.m.KTM  Kathmandu Tribhuvan-BKK Bangkok Suvarnabhumi
15h 15m1 stop New Delhi Indira Gandhi Intl
Air India Logo
2:45 p.m. - 1:45 p.m.BKK  Bangkok Suvarnabhumi-KTM Kathmandu Tribhuvan
24h 15m2 stops Mumbai Chhatrapati Shivaji Intl Bengaluru Intl
C$ 715Air India
Mon, 8 Feb - Mon, 15 Feb
Air India Logo
7:35 a.m. - 7:05 a.m.KTM  Kathmandu Tribhuvan-BKK Bangkok Suvarnabhumi
22h 15m1 stop New Delhi Indira Gandhi Intl
Air India Logo
1:50 p.m. - 1:55 p.m.BKK  Bangkok Suvarnabhumi-KTM Kathmandu Tribhuvan
25h 20m2 stops Pune Lohegaon New Delhi Indira Gandhi Intl
C$ 740Air India
Wed, 28 Oct - Wed, 4 Nov
Multiple Airlines Logo
7:35 a.m. - 8:45 p.m.KTM  Kathmandu Tribhuvan-BKK Bangkok Suvarnabhumi
11h 55m1 stop New Delhi Indira Gandhi Intl
Multiple Airlines Logo
5:30 p.m. - 9:05 a.m.BKK  Bangkok Suvarnabhumi-KTM Kathmandu Tribhuvan
16h 50m2 stops Phuket City New Delhi Indira Gandhi Intl
C$ 800Multiple Airlines
Wed, 28 Oct - Wed, 4 Nov
Multiple Airlines Logo
7:35 a.m. - 11:45 p.m.KTM  Kathmandu Tribhuvan-BKK Bangkok Suvarnabhumi
14h 55m2 stops New Delhi Indira Gandhi Intl Phuket City
Multiple Airlines Logo
8:10 p.m. - 6:35 a.m.BKK  Bangkok Suvarnabhumi-KTM Kathmandu Tribhuvan
35h 40m2 stops Phuket City New Delhi Indira Gandhi Intl
C$ 824Multiple Airlines
Tue, 27 Oct - Wed, 4 Nov
Thai Airways Logo
12:25 a.m. - 5:10 a.m.KTM  Kathmandu Tribhuvan-BKK Bangkok Suvarnabhumi
3h 30mdirect
Thai Airways Logo
9:15 p.m. - 11:25 p.m.BKK  Bangkok Suvarnabhumi-KTM Kathmandu Tribhuvan
3h 25mdirect
C$ 1,099Thai Airways
Booking Insights

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

Round-trip flights from Kathmandu to Bangkok Suvarnabhumi Airport typically range from C$ 479 to C$ 610. The lowest price found in the past 5 days was C$ 551, on Air India.

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

Based on deals KAYAK users found in the last 12 months, Monday is the cheapest day of the week to fly from Kathmandu to Bangkok Suvarnabhumi Airport. It’s 3% cheaper than the average day, while Tuesday is the most expensive, with prices 7% higher.

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

•February is the cheapest month to fly from Kathmandu to Bangkok Suvarnabhumi Airport at C$ 456 round-trip.
•May (C$ 618) and April (C$ 612) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 35% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

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

Flights from Kathmandu to Bangkok Suvarnabhumi Airport are cheapest 21 weeks before departure. Booking in this window typically costs about 22% 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 Kathmandu to Bangkok

 
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 Kathmandu to Bangkok Suvarnabhumi Airport flights

Low season

October

Cheapest flight

C$ 325
Beat the crowds with an average 10% drop in traveller numbers.
The most popular month to fly with an average 1% increase in traveller numbers.
One-way flight from Kathmandu to Bangkok Suvarnabhumi Airport

When to book flights from Kathmandu to Bangkok

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

Your Kathmandu to Bangkok Suvarnabhumi Airport 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 Kathmandu to Bangkok Suvarnabhumi Airport?

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

    • Earliest: departs at 12:25 am and lands at 3:54 am
    • Latest: departs at 1:30 pm and lands at 4:59 pm.

    The flight takes about 3h 29m.

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

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

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

    A direct flight from Kathmandu to Bangkok Suvarnabhumi Airport takes 3h 29m, covering 3,585 km.

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

    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 Kathmandu to Bangkok Suvarnabhumi Airport flight?

    Round-trip flights from Kathmandu to Bangkok Suvarnabhumi Airport range from C$ 479 to C$ 610, with an average of C$ 522 over the past 12 months. Anything below C$ 479 counts as a good deal.

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

    Last-minute fares on this route (booked within two weeks of departure) run 13% above the C$ 522 route average. Book 21 weeks before departure for the lowest fares.

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

    On this route, layover flights are cheaper than direct options on average. Layover fares average C$ 490 round-trip via Colombo Bandaranaike Intl (CMB), compared to C$ 523 for direct.

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

    There is no standard. Checked bag policies vary by airline on this route. Most carriers charge C$ 30–C$ 142 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 Kathmandu to Bangkok Suvarnabhumi Airport?

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

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

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

  • Have flight prices from Kathmandu to Bangkok Suvarnabhumi Airport 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 C$ 551 to C$ 4,218. That means the highest observed fare was about 8x higher than the lowest one.

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

    One-way fares from Kathmandu to Bangkok Suvarnabhumi Airport are currently higher than usual. Average one-way flight prices are about C$ 379, which is 12% above the typical average for this route.

  • What car rental options are available at Bangkok Suvarnabhumi Airport (BKK)?

    Bangkok Suvarnabhumi Airport (BKK) hosts 5 major car rental companies, with daily rates starting from around C$ 19 for economy cars. Top options include:

    • Drive Car Rental
    • Alamo
    • Sixt
    • Yesaway
    • Hertz

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

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

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

    Night flights have the fewest delays on this route, while morning departures tend to have the most.

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

    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 Kathmandu to Bangkok Suvarnabhumi Airport route, 30% of flights were delayed in the past three months, with delays averaging 2h 07m.

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

    One-stop flights from Kathmandu to Bangkok Suvarnabhumi Airport most commonly connect through:

    • New Delhi Indira Gandhi Intl (DEL) – 58% of one-stop connections
    • Colombo Bandaranaike Intl (CMB) – 32% of one-stop connections
    • Dhaka Hazrat Shahjalal Intl (DAC) – 6% of one-stop connections
    • Singapore Changi (SIN) – 4% of one-stop connections

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

    Yes. Flexible dates can save you up to 10% on flights from Kathmandu to Bangkok Suvarnabhumi Airport. Monday is the cheapest departure day at C$ 508 round-trip on average, while Tuesday is the most expensive at C$ 564, a difference of C$ 56.

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

  • Which airlines fly from Kathmandu to Bangkok Suvarnabhumi Airport?

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

    • Thai Airways
    • Nepal Airlines
    • Himalaya Airlines

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

    Flying via Singapore Changi (SIN) gives the shortest average 1-stop total travel time at 10h 07m, compared with 10h 23m via New Delhi Indira Gandhi Intl (DEL) and 21h 59m via Dhaka Hazrat Shahjalal Intl (DAC).

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

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

  • Which popular places can I visit in Bangkok Suvarnabhumi Airport?

    Some of the most popular sights in Bangkok Suvarnabhumi Airport are Pratunam and Thailand Cultural Center. These are among the most viewed places in Bangkok Suvarnabhumi Airport on KAYAK.

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

    Among airlines operating Kathmandu to Bangkok Suvarnabhumi Airport flights:

    • Thai Airways: 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 Kathmandu to Bangkok Suvarnabhumi Airport flights?

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

    • Thai Airways: a carry-on bag and a checked bag in Economy Class
    • Nepal Airlines: a carry-on bag and a checked bag in Economy Class

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

Your guide to booking Kathmandu to Bangkok Suvarnabhumi Airport 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 Monday departure and avoid flying on Tuesday. On this route, Monday flights average C$ 508, about C$ 56 less than Tuesday fares (10% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 21 weeks before you fly. On this route, that window historically saves about 22% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Kathmandu to Bangkok Suvarnabhumi Airport trip for February. Fares historically average C$ 456 round-trip in that month – typically C$ 162 less than the most expensive month, which is May (based on the last 12 months).
  • For the best chance of arriving on time, fly with Thai Airways. Over the past three months, 76% of Thai Airways flights from Kathmandu to Bangkok Suvarnabhumi Airport arrived on time, slightly above the route average of 70%. When flights on this route arrive late, they're delayed by an average of 2h 07m, so choosing an airline with strong on-time performance can make a difference if you're on a tight schedule.
  • If you have the time, taking a 1-stop flight through Colombo Bandaranaike Intl Airport (CMB) can be cheaper than flying direct. The cheapest layover option averages C$ 490 round-trip on this route – about C$ 32 less than direct flights (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Bangkok Suvarnabhumi Airport.

    • Regency Bangkok Suvarnabhumi Airpor
    • Siam Mandarina Bangkok Suvarnabhumi Airport Hotel (Free Shuttle)
    • Suvarnabhumi Ville Airport Hotel

Prefer to fly direct from Kathmandu to Bangkok?

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

Direct departures

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,Himalaya Airlines

Thai Airways,Himalaya Airlines

Sunday

Thai Airways

Thai Airways

See more nonstop flights

Direct returns

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,Himalaya Airlines

Thai Airways,Himalaya Airlines

Sunday

Thai Airways

Thai Airways

See more nonstop flights

More options for your flight from Kathmandu to Bangkok

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