Navigating security at BKK can be a nightmare. Arrive 90 minutes early to clear security and immigration, especially if your gate is in the satellite concourse.

Most accurate provider | OneTravel 3 stars |
|---|---|
Most trusted provider | OneTravel 3 stars |
Round-trip from | $341 (CheapOair) |
One-way from | $144 (Kiwi.com) |
Popular in | April |
Cheapest in | January |
Average price | $296 |
Good round-trip deal | $440 or less |
Good one-way deal | $223 or less |
Fly from
Fly to
Route
Depart
Return
Price
BangkokKathmandu
BKK - KTM
BKKKTM
Bangkok Suvarnabhumi
Sat 3/7
7:55 pm-11:30 am
1 stop16h 50m
Kathmandu Tribhuvan
Tue 3/24
1:30 pm-6:15 pm
Nonstop3h 30m
BangkokKathmandu
BKK - KTM
BKKKTM
Bangkok Suvarnabhumi
Tue 2/17
7:55 pm-11:30 am
1 stop16h 50m
Kathmandu Tribhuvan
Tue 2/24
12:25 am-5:10 am
Nonstop3h 30m
BangkokKathmandu
BKK - KTM
BKKKTM
Bangkok Suvarnabhumi
Sun 3/1
8:20 am-11:30 am
1 stop28h 25m
Kathmandu Tribhuvan
Sat 3/7
1:45 pm-10:15 am
2 stops19h 15m
BangkokKathmandu
BKK - KTM
BKKKTM
Bangkok Suvarnabhumi
Mon 2/16
5:55 pm-6:35 am
1 stop13h 55m
Kathmandu Tribhuvan
Tue 2/24
12:25 am-5:10 am
Nonstop3h 30m
BangkokKathmandu
BKK - KTM
BKKKTM
Bangkok Suvarnabhumi
Tue 4/28
6:00 am-9:45 pm
1 stop17h 00m
Kathmandu Tribhuvan
Tue 5/12
10:45 pm-10:15 am
1 stop10h 15m
BangkokKathmandu
BKK - KTM
BKKKTM
Bangkok Suvarnabhumi
Mon 4/27
6:00 am-9:45 pm
1 stop17h 00m
Kathmandu Tribhuvan
Sun 5/17
10:45 pm-1:25 pm
1 stop13h 25m
BangkokKathmandu
BKK - KTM
BKKKTM
Bangkok Suvarnabhumi
Mon 1/19
5:55 pm-6:35 am
1 stop13h 55m
Kathmandu Tribhuvan
Sun 1/25
10:20 pm-7:50 am
1 stop8h 15m
BangkokKathmandu
BKK - KTM
BKKKTM
Bangkok Suvarnabhumi
Mon 12/1
10:20 pm-6:35 am
1 stop9h 30m
Kathmandu Tribhuvan
Mon 12/15
12:25 am-5:10 am
Nonstop3h 30m
BangkokKathmandu
BKK - KTM
BKKKTM
Bangkok Suvarnabhumi
Tue 2/17
1:50 pm-9:20 pm
2 stops32h 45m
Kathmandu Tribhuvan
Wed 2/25
10:20 pm-4:05 pm
2 stops16h 30m
BangkokKathmandu
BKK - KTM
BKKKTM
Bangkok Suvarnabhumi
Mon 12/15
10:15 am-12:25 pm
Nonstop3h 25m
Kathmandu Tribhuvan
Mon 2/2
12:25 am-5:10 am
Nonstop3h 30m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars |
The best time to book flights from Bangkok Suvarnabhumi Airport to Kathmandu is 74 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Currently, July is the cheapest month in which you can book a flight from Bangkok Suvarnabhumi Airport to Kathmandu (average of $122). Flying from Bangkok Suvarnabhumi Airport to Kathmandu in October is currently the most expensive (average of $238). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
When flying from Bangkok Suvarnabhumi Airport to Kathmandu, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 35% versus a flight in the morning.
About 36% of weekly flights between Bangkok and Kathmandu have experienced delays in the past year, with the average delay time being 98 minutes.
Historically, flights departing in the evening are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.
Thursday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.
Over the last year, Thai Airways have had the lowest number of delays on this route, with just 29% of flights being delayed.
Boarding
Overall
Entertainment
Comfort
Crew
Food
Reviews
Joe,Jun 2025
BKK - TPE
Boarding
Overall
Entertainment
Comfort
Crew
Food
Reviews
Joe,Jun 2025
BKK - TPE
Boarding
Overall
Entertainment
Comfort
Crew
Food
Reviews
Joe,Jun 2025
BKK - TPE
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$212 | Average$289 | FlexibilityNo cancel fee | On-time87% | |
| Cheapest$219 | Average$293 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$383 | Average$418 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$440 | Average$478 | FlexibilityNo cancel fee | On-time77% |