Istanbul (IST) to Porto (OPO) flights from USD323

*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. 

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 Istanbul and Porto

cmp-daily-histogram-bars-legend-min-price-aria-label USD327
cmp-daily-histogram-bars-legend-max-price-aria-label USD1.4K
Displaying fares for October-2026
  • IST–OPO, 20/10/2026 – 17/11/2026: From USD1,357
    20

    Tu

    OCT

  • IST–OPO, 21/10/2026 – 11/11/2026: From USD1,159
    21

    We

  • IST–OPO, 22/10/2026 – 05/11/2026: From USD1,159
    22

    Th

  • IST–OPO, 23/10/2026 – 20/11/2026: From USD978
    23

    Fr

  • IST–OPO, 24/10/2026 – 21/11/2026: From USD1,140
    24

    Sa

  • IST–OPO, 25/10/2026 – 15/11/2026: From USD888
    25

    Su

  • IST–OPO, 26/10/2026 – 23/11/2026: From USD577
    26

    Mo

  • IST–OPO, 27/10/2026 – 24/11/2026: From USD436
    27

    Tu

  • IST–OPO, 28/10/2026 – 25/11/2026: From USD401
    28

    We

  • IST–OPO, 29/10/2026 – 26/11/2026: From USD401
    29

    Th

  • IST–OPO, 30/10/2026 – 20/11/2026: From USD614
    30

    Fr

  • IST–OPO, 31/10/2026 – 21/11/2026: From USD404
    31

    Sa

  • IST–OPO, 01/11/2026 – 29/11/2026: From USD576
    01

    Su

    NOV

  • IST–OPO, 02/11/2026 – 05/11/2026: From USD451
    02

    Mo

  • IST–OPO, 03/11/2026 – 17/11/2026: From USD327
    03

    Tu

  • IST–OPO, 04/11/2026 – 11/11/2026: From USD456
    04

    We

  • IST–OPO, 05/11/2026 – 12/11/2026: From USD486
    05

    Th

  • IST–OPO, 06/11/2026 – 20/11/2026: From USD451
    06

    Fr

  • IST–OPO, 07/11/2026 – 05/12/2026: From USD363
    07

    Sa

  • IST–OPO, 08/11/2026 – 11/11/2026: From USD385
    08

    Su

  • IST–OPO, 09/11/2026 – 12/11/2026: From USD344
    09

    Mo

  • IST–OPO, 10/11/2026 – 17/11/2026: From USD327
    10

    Tu

  • IST–OPO, 11/11/2026 – 09/12/2026: From USD353
    11

    We

  • IST–OPO, 12/11/2026 – 10/12/2026: From USD492
    12

    Th

  • IST–OPO, 13/11/2026 – 20/11/2026: From USD385
    13

    Fr

  • IST–OPO, 14/11/2026 – 17/11/2026: From USD394
    14

    Sa

  • IST–OPO, 15/11/2026 – 13/12/2026: From USD363
    15

    Su

  • IST–OPO, 16/11/2026 – 07/12/2026: From USD327
    16

    Mo

  • IST–OPO, 17/11/2026 – 20/11/2026: From USD327
    17

    Tu

  • IST–OPO, 18/11/2026 – 21/11/2026: From USD353
    18

    We

  • IST–OPO, 19/11/2026 – 10/12/2026: From USD334
    19

    Th

  • RangeUSD327-USD1,357