Cheapest return SEA–PRG flights, September

AirHint found the following cheapest return flights from Seattle (SEA) to Prague (PRG) in September 2026 (see full year).

Return flights

10 Sep - 24 Sep Turkish Airlines
13 Sep - 27 Sep Scandinavian Airlines
09 Sep - 16 Sep British Airways
01 Sep - 08 Sep British Airways
02 Sep - 09 Sep British Airways
14 Sep - 21 Sep British Airways
23 Sep - 30 Sep British Airways
16 Sep - 23 Sep British Airways
07 Sep - 14 Sep British Airways
28 Sep - 05 Oct British Airways
21 Sep - 28 Sep British Airways
24 Sep - 01 Oct British Airways
27 Sep - 04 Oct British Airways

Also check the deals for one-way flights from Seattle to Prague in September.

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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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