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

Return flights

23 Mar - 28 Mar	Icelandair
18 Mar - 24 Mar	Icelandair
09 Mar - 18 Mar	Icelandair
05 Mar - 12 Mar	Icelandair
18 Mar - 29 Mar	Icelandair
05 Mar - 13 Mar	Delta
08 Mar - 16 Mar	Air France
09 Mar - 18 Mar	Delta	direct
02 Mar - 24 Mar	Delta	direct
02 Mar - 31 Mar	Delta
31 Mar - 17 Apr	Air France
30 Mar - 06 Apr	Condor
30 Mar - 13 Apr	British Airways
31 Mar - 17 Apr	Virgin Atlantic	direct
30 Mar - 06 Apr	Virgin Atlantic	direct

Also check the deals for one-way flights from Seattle to Paris 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 Paris in March from 377€

Return flights