Seattle (SEA) to Bucharest (OTP) flights from USD769

*Modifying this information may result in a different fare

*All amounts are in USD. Taxes and surcharges are included. No booking fee is applicable. Fares displayed have been collected within the last 48hrs and may no longer be available at time of booking. Additional baggage fees may apply.

Why book directly on the KLM website?

Explore the benefits of booking through our website.

No hidden costs icon

No hidden costs

Book with confidence. Our rates hide no unpleasant surprises.

24/7 customer service icon

24/7 customer service

Count on direct, personal support whenever you need it, day or night.

Seamless travel icon

Seamless travel

Enjoy a smooth journey with timely updates and automatic rebooking.

Lowest fares between Seattle and Bucharest

cmp-daily-histogram-bars-legend-min-price-aria-label USD800
cmp-daily-histogram-bars-legend-max-price-aria-label USD1.4K
Displaying fares for October-2026
  • SEA–OTP, 10/06/2026 – 10/13/2026: From USD938
    06

    Tu

    OCT

  • SEA–OTP, 10/07/2026 – 10/14/2026: From USD952
    07

    We

  • SEA–OTP, 10/08/2026 – 10/15/2026: From USD1,397
    08

    Th

  • SEA–OTP, 10/09/2026 – 10/16/2026: From USD998
    09

    Fr

  • SEA–OTP, 10/10/2026 – 11/07/2026: From USD1,058
    10

    Sa

  • SEA–OTP, 10/11/2026 – 11/08/2026: From USD1,008
    11

    Su

  • SEA–OTP, 10/12/2026 – 10/19/2026: From USD1,008
    12

    Mo

  • SEA–OTP, 10/13/2026 – 10/20/2026: From USD948
    13

    Tu

  • SEA–OTP, 10/14/2026 – 10/21/2026: From USD948
    14

    We

  • SEA–OTP, 10/15/2026 – 10/22/2026: From USD1,002
    15

    Th

  • SEA–OTP, 10/16/2026 – 10/23/2026: From USD998
    16

    Fr

  • SEA–OTP, 10/17/2026 – 11/07/2026: From USD1,062
    17

    Sa

  • SEA–OTP, 10/18/2026 – 11/08/2026: From USD1,008
    18

    Su

  • SEA–OTP, 10/19/2026 – 11/09/2026: From USD1,008
    19

    Mo

  • SEA–OTP, 10/20/2026 – 11/17/2026: From USD958
    20

    Tu

  • SEA–OTP, 10/21/2026 – 11/04/2026: From USD958
    21

    We

  • SEA–OTP, 10/22/2026 – 10/29/2026: From USD1,005
    22

    Th

  • SEA–OTP, 10/23/2026 – 10/30/2026: From USD1,005
    23

    Fr

  • SEA–OTP, 10/24/2026 – 11/14/2026: From USD1,058
    24

    Sa

  • SEA–OTP, 10/25/2026 – 11/08/2026: From USD1,008
    25

    Su

  • SEA–OTP, 10/26/2026 – 11/09/2026: From USD1,008
    26

    Mo

  • SEA–OTP, 10/27/2026 – 11/10/2026: From USD958
    27

    Tu

  • SEA–OTP, 10/28/2026 – 11/25/2026: From USD958
    28

    We

  • SEA–OTP, 10/29/2026 – 11/19/2026: From USD1,008
    29

    Th

  • SEA–OTP, 10/30/2026 – 11/06/2026: From USD1,134
    30

    Fr

  • SEA–OTP, 10/31/2026 – 11/07/2026: From USD1,141
    31

    Sa

  • SEA–OTP, 11/01/2026 – 11/15/2026: From USD1,012
    01

    Su

    NOV

  • SEA–OTP, 11/02/2026 – 11/09/2026: From USD850
    02

    Mo

  • SEA–OTP, 11/03/2026 – 11/10/2026: From USD800
    03

    Tu

  • SEA–OTP, 11/04/2026 – 11/11/2026: From USD800
    04

    We

  • SEA–OTP, 11/05/2026 – 11/19/2026: From USD850
    05

    Th

  • RangeUSD800-USD1,397