AirHint found the following cheapest return flights from Everett (PAE) to Kathmandu (KTM) in September 2025 (see full year).

Return flights

05 Sep - 12 Sep	Alaska Airlines
30 Sep - 21 Oct	Alaska Airlines
16 Sep - 01 Oct	Alaska Airlines
23 Sep - 30 Sep	Alaska Airlines
24 Sep - 27 Oct	Alaska Airlines
08 Sep - 16 Sep	Qatar Airways
24 Sep - 29 Oct	Alaska Airlines
12 Sep - 20 Sep	Alaska Airlines
26 Sep - 10 Oct	Alaska Airlines

Also check the deals for one-way flights from Everett to Kathmandu in September.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from Everett to Kathmandu in September from $1182

Return flights