September is by far the best month, wherein you can get cheapest flights for Kathmandu to Washington. 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.
KTM
18:00
Kathmandu Tribhuvan International Airport
Mon , 01 Sep 2025
IAD
15:40
Washington Washington Dulles International Airport
Tue, 02 Sep 2025
KTM
18:00
Kathmandu Tribhuvan International Airport
Thu , 04 Sep 2025
IAD
08:40
Washington Washington Dulles International Airport
Fri, 05 Sep 2025
KTM
15:00
Kathmandu Tribhuvan International Airport
Thu , 04 Sep 2025
IAD
08:40
Washington Washington Dulles International Airport
Fri, 05 Sep 2025
KTM
16:20
Kathmandu Tribhuvan International Airport
Mon , 01 Sep 2025
IAD
16:10
Washington Washington Dulles International Airport
Tue, 02 Sep 2025
KTM
16:20
Kathmandu Tribhuvan International Airport
Thu , 04 Sep 2025
IAD
16:10
Washington Washington Dulles International Airport
Fri, 05 Sep 2025
KTM
19:20
Kathmandu Tribhuvan International Airport
Mon , 01 Sep 2025
IAD
10:55
Washington Washington Dulles International Airport
Tue, 02 Sep 2025
KTM
10:05
Kathmandu Tribhuvan International Airport
Mon , 01 Sep 2025
IAD
16:10
Washington Washington Dulles International Airport
Tue, 02 Sep 2025
KTM
21:00
Kathmandu Tribhuvan International Airport
Thu , 04 Sep 2025
IAD
16:10
Washington Washington Dulles International Airport
Fri, 05 Sep 2025
KTM
18:45
Kathmandu Tribhuvan International Airport
Mon , 01 Sep 2025
IAD
08:40
Washington Washington Dulles International Airport
Wed, 03 Sep 2025
KTM
18:45
Kathmandu Tribhuvan International Airport
Mon , 01 Sep 2025
IAD
15:40
Washington Washington Dulles International Airport
Tue, 02 Sep 2025
KTM
07:40
Kathmandu Tribhuvan International Airport
Mon , 01 Sep 2025
IAD
19:45
Washington Washington Dulles International Airport
Mon, 01 Sep 2025