Earn point on your loyalty program!arrow arc left

Cheap flights from Seattle (BFI) to Kathmandu (KTM)

Know your dates, get live prices in seconds
airplane logo

pin logo

calendar
Departure
calendar backward
Return
airplane logo
1 Adults (11+)
0 Children (2~11)
0 Infants (0~2)
Save up to 31%
Book Flight + Hotel at the same time

How to find the cheapest flight from Seattle (BFI) to Kathmandu (KTM)

How to find the cheapest flight from Seattle (BFI) to Kathmandu (KTM)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Seattle (BFI) to Kathmandu (KTM)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Seattle (BFI) to Kathmandu (KTM)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.

Cheap flights from Seattle to Kathmandu in December 2025 , January 2026

31 Dec - 27 Jan $ 2,242.00
BFI
Seattle
Air Excursions
3 STOPS
KTM
Kathmandu
KTM
Kathmandu
Air Excursions
3 STOPS
BFI
Seattle
Pick dates
30 Dec - 27 Jan $ 2,305.00
BFI
Seattle
Air Excursions
3 STOPS
KTM
Kathmandu
KTM
Kathmandu
Air Excursions
3 STOPS
BFI
Seattle
Pick dates
30 Dec - 27 Jan $ 2,437.00
BFI
Seattle
Air Excursions
3 STOPS
KTM
Kathmandu
KTM
Kathmandu
Air Excursions
3 STOPS
BFI
Seattle
Pick dates

Last minute flights from Seattle to Kathmandu

27 Dec - 02 Jan $ 3,316.00
BFI
Seattle
Air Excursions
3 STOPS
KTM
Kathmandu
KTM
Kathmandu
Air Excursions
3 STOPS
BFI
Seattle
Pick dates
27 Dec - 02 Jan $ 3,334.00
BFI
Seattle
Air Excursions
3 STOPS
KTM
Kathmandu
KTM
Kathmandu
Air Excursions
3 STOPS
BFI
Seattle
Pick dates
26 Dec - 02 Jan $ 3,563.00
BFI
Seattle
Air Excursions
3 STOPS
KTM
Kathmandu
KTM
Kathmandu
Air Excursions
3 STOPS
BFI
Seattle
Pick dates

One-way flights to Kathmandu from Seattle

7:45 PM - 6:20 PM
Cathay Pacific
3 Stops
60h
BFI - KTM
$ 1,251
Kiwi
Pick dates
7:45 PM - 1:20 AM
Turkish Airlines
3 Stops
49h 40m
BFI - KTM
$ 1,307
Kiwi
Pick dates
2:45 PM - 6:20 PM
Cathay Pacific
3 Stops
41h
BFI - KTM
$ 1,387
Kiwi
Pick dates

How to find the cheapest flight from Seattle (BFI) to Kathmandu (KTM)

Related info for your journey
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Seattle (BFI) to Kathmandu (KTM)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Seattle (BFI) to Kathmandu (KTM)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.