Cheapest return flights from Seattle to Florence in May from $687

Best time to book flights for Seattle (SEA) to Florence (FLR) flights at AirHint

AirHint found the following cheapest return flights from Seattle (SEA) to Florence (FLR) in May 2025 (see full year).

Return flights

16 May - 21 May Icelandair
06 May - 13 May SWISS
07 May - 14 May Condor
05 May - 12 May Lufthansa
09 May - 16 May British Airways
01 May - 08 May British Airways
08 May - 15 May Icelandair
04 May - 11 May British Airways
20 May - 27 May Icelandair
15 May - 22 May Lufthansa
28 May - 04 Jun Icelandair
05 May - 14 Jun Icelandair
27 May - 03 Jun Icelandair
26 May - 02 Jun Icelandair
25 May - 01 Jun Icelandair

Also check the deals for one-way flights from Seattle to Florence in May.

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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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