September is by far the best month, wherein you can get cheapest flights for Houston to Kathmandu. Meanwhile, 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.
IAH
18:25
Houston George Bush Intercontinental Houston Airport
Tue , 09 Sep 2025
KTM
08:50
Kathmandu Tribhuvan International Airport
Thu, 11 Sep 2025
IAH
21:00
Houston George Bush Intercontinental Houston Airport
Tue , 09 Sep 2025
KTM
06:15
Kathmandu Tribhuvan International Airport
Thu, 11 Sep 2025
IAH
21:00
Houston George Bush Intercontinental Houston Airport
Fri , 19 Sep 2025
KTM
06:15
Kathmandu Tribhuvan International Airport
Sun, 21 Sep 2025
IAH
18:25
Houston George Bush Intercontinental Houston Airport
Mon , 15 Sep 2025
KTM
08:50
Kathmandu Tribhuvan International Airport
Wed, 17 Sep 2025
IAH
18:25
Houston George Bush Intercontinental Houston Airport
Wed , 03 Sep 2025
KTM
08:50
Kathmandu Tribhuvan International Airport
Fri, 05 Sep 2025
IAH
21:00
Houston George Bush Intercontinental Houston Airport
Wed , 03 Sep 2025
KTM
06:15
Kathmandu Tribhuvan International Airport
Fri, 05 Sep 2025
IAH
19:55
Houston George Bush Intercontinental Houston Airport
Sat , 20 Sep 2025
KTM
09:45
Kathmandu Tribhuvan International Airport
Mon, 22 Sep 2025
IAH
18:25
Houston George Bush Intercontinental Houston Airport
Tue , 23 Sep 2025
KTM
12:15
Kathmandu Tribhuvan International Airport
Thu, 25 Sep 2025
IAH
18:25
Houston George Bush Intercontinental Houston Airport
Tue , 23 Sep 2025
KTM
08:00
Kathmandu Tribhuvan International Airport
Fri, 26 Sep 2025
IAH
18:25
Houston George Bush Intercontinental Houston Airport
Tue , 23 Sep 2025
KTM
21:45
Kathmandu Tribhuvan International Airport
Thu, 25 Sep 2025