Cheapest return flights from Seattle to Bucharest in April from $540

AirHint found the following cheapest return flights from Seattle (SEA) to Bucharest (OTP) in April 2026 (see full year).

Return flights

21 Apr - 28 Apr British Airways
14 Apr - 21 Apr British Airways
15 Apr - 22 Apr British Airways
07 Apr - 14 Apr British Airways
13 Apr - 20 Apr Air France
08 Apr - 15 Apr Lufthansa
30 Apr - 07 May Icelandair
16 Apr - 23 Apr British Airways
17 Apr - 24 Apr British Airways
20 Apr - 27 Apr British Airways
23 Apr - 30 Apr British Airways
24 Apr - 01 May British Airways
25 Apr - 02 May British Airways

Also check the deals for one-way flights from Seattle to Bucharest in April.

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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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