May is by far the best month, wherein you can get cheapest flights for Thimphu to Kolkata. Meanwhile, November is perceived as the expensive month due to the varying factors. That’s why it’s highly advised to make advanced online flight booking to save huge amounts of money.
Disclaimer - All the mentioned fares were found within last 48 hrs. The displayed fares are based on historical data and are subject to change. The fares cannot be guaranteed at the time of booking.

Kathmandu
12:25
Tribhuvan International Airport [KTM]
Fri , 03 Apr 2026

Delhi
13:40
Indira Gandhi International Airport [DEL]
Fri, 03 Apr 2026

Kolkata
11:55
Netaji Subhash Chandra Bose International Airport [CCU]
Fri , 03 Apr 2026

Bangkok
16:05
Suvarnabhumi Airport [BKK]
Fri, 03 Apr 2026

Kathmandu
09:35
Tribhuvan International Airport [KTM]
Fri , 03 Apr 2026

Thimphu
10:50
Paro Airport [PBH]
Fri, 03 Apr 2026

Delhi
04:30
Indira Gandhi International Airport [DEL]
Fri , 03 Apr 2026

Thimphu
07:10
Paro Airport [PBH]
Fri, 03 Apr 2026

Thimphu
10:50
Paro Airport [PBH]
Thu , 09 Apr 2026

Delhi
13:40
Indira Gandhi International Airport [DEL]
Thu, 09 Apr 2026

Thimphu
07:50
Paro Airport [PBH]
Fri , 03 Apr 2026

Kathmandu
08:55
Tribhuvan International Airport [KTM]
Fri, 03 Apr 2026

Thimphu
10:35
Paro Airport [PBH]
Fri , 03 Apr 2026

Kolkata
11:15
Netaji Subhash Chandra Bose International Airport [CCU]
Fri, 03 Apr 2026

Thimphu
11:30
Paro Airport [PBH]
Fri , 03 Apr 2026

Delhi
13:20
Indira Gandhi International Airport [DEL]
Fri, 03 Apr 2026