AirHint found the following cheapest return flights from Seattle (SEA) to Lima (LIM) in March 2026 (see full year).

Return flights

23 Mar - 02 Apr	Frontier Airlines
02 Mar - 23 Mar	Frontier Airlines
14 Mar - 20 Mar	Frontier Airlines
26 Mar - 07 Apr	Frontier Airlines
13 Mar - 20 Mar	Hawaiian Airlines
19 Mar - 31 Mar	Frontier Airlines
21 Mar - 31 Mar	Frontier Airlines
18 Mar - 30 Mar	Frontier Airlines
18 Mar - 29 Mar	Hawaiian Airlines
19 Mar - 30 Mar	Frontier Airlines
14 Mar - 21 Mar	Frontier Airlines
20 Mar - 31 Mar	Frontier Airlines

Also check the deals for one-way flights from Seattle to Lima in March.

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 Seattle to Lima in March from 422€

Return flights