Flights San Francisco – Porto (SFO-OPO) from $743*

*Modifying this information may result in a different fare

Book flights from San Francisco to Porto

Aug 2026
From$933*
Seen: 17 hrs ago
Round-trip/Economy
Sep 2026
From$837*
Seen: 17 hrs ago
Round-trip/Economy
Oct 2026
From$803*
Seen: 57 minutes ago
Round-trip/Economy
cmp-daily-histogram-bars-legend-min-price-aria-label $902
cmp-daily-histogram-bars-legend-max-price-aria-label $1.4K
Displaying fares for August-2026
  • SFO–OPO, 08/18/2026 – 08/25/2026: From $933
    18

    Tu

    aug

  • SFO–OPO, 08/19/2026 – 08/26/2026: From $933
    19

    We

  • SFO–OPO, 08/20/2026 – 09/17/2026: From $997
    20

    Th

  • SFO–OPO, 08/21/2026 – 08/28/2026: From $1,002
    21

    Fr

  • SFO–OPO, 08/22/2026 – 08/29/2026: From $1,174
    22

    Sa

  • SFO–OPO, 08/23/2026 – 09/06/2026: From $1,104
    23

    Su

  • SFO–OPO, 08/24/2026 – 08/31/2026: From $1,104
    24

    Mo

  • SFO–OPO, 08/25/2026 – 09/08/2026: From $1,044
    25

    Tu

  • SFO–OPO, 08/26/2026 – 09/02/2026: From $1,044
    26

    We

  • SFO–OPO, 08/27/2026 – 09/10/2026: From $1,114
    27

    Th

  • SFO–OPO, 08/28/2026 – 09/18/2026: From $1,114
    28

    Fr

  • SFO–OPO, 08/29/2026 – 09/05/2026: From $1,174
    29

    Sa

  • SFO–OPO, 08/30/2026 – 09/06/2026: From $1,104
    30

    Su

  • SFO–OPO, 08/31/2026 – 09/28/2026: From $1,104
    31

    Mo

  • SFO–OPO, 09/01/2026 – 09/15/2026: From $1,044
    01

    Tu

    sep

  • SFO–OPO, 09/02/2026 – 09/16/2026: From $1,128
    02

    We

  • SFO–OPO, 09/03/2026 – 09/17/2026: From $1,194
    03

    Th

  • SFO–OPO, 09/04/2026 – 09/11/2026: From $1,194
    04

    Fr

  • SFO–OPO, 09/05/2026 – 10/03/2026: From $1,193
    05

    Sa

  • SFO–OPO, 09/06/2026 – 10/04/2026: From $1,260
    06

    Su

  • SFO–OPO, 09/07/2026 – 09/28/2026: From $1,104
    07

    Mo

  • SFO–OPO, 09/08/2026 – 10/06/2026: From $1,044
    08

    Tu

  • SFO–OPO, 09/09/2026 – 09/16/2026: From $1,053
    09

    We

  • SFO–OPO, 09/10/2026 – 09/24/2026: From $1,114
    10

    Th

  • SFO–OPO, 09/11/2026 – 09/18/2026: From $1,194
    11

    Fr

  • SFO–OPO, 09/12/2026 – 10/03/2026: From $1,184
    12

    Sa

  • SFO–OPO, 09/13/2026 – 10/04/2026: From $1,260
    13

    Su

  • SFO–OPO, 09/14/2026 – 09/28/2026: From $962
    14

    Mo

  • SFO–OPO, 09/15/2026 – 10/06/2026: From $902
    15

    Tu

  • SFO–OPO, 09/16/2026 – 10/07/2026: From $1,003
    16

    We

  • SFO–OPO, 09/17/2026 – 09/24/2026: From $1,426
    17

    Th

    • Range$902-$1,426

    *Fares displayed have been collected within the last 48hrs and may no longer be available at time of booking. Additional fees and charges for optional products and services may apply.

    The best deals on flights from San Francisco to Porto for the upcoming months

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    The best deals on flights from San Francisco to Porto for the upcoming months
    From
    To
    Fare Type
    Dates
    Price
    San Francisco (SFO)Porto (OPO)Round-trip
    /
    Economy    		10/27/2026 - 11/03/2026

    From

    $803

    Seen: 57 minutes ago

    San Francisco (SFO)Porto (OPO)Round-trip
    /
    Economy    		10/28/2026 - 11/18/2026

    From

    $803

    Seen: 57 minutes ago

    San Francisco (SFO)Porto (OPO)Round-trip
    /
    Economy    		11/15/2026 - 11/18/2026

    From

    $743

    Seen: 19 hrs ago

    San Francisco (SFO)Porto (OPO)Round-trip
    /
    Economy    		11/15/2026 - 11/22/2026

    From

    $793

    Seen: 19 hrs ago

    San Francisco (SFO)Porto (OPO)Round-trip
    /
    Economy    		11/15/2026 - 12/06/2026

    From

    $793

    Seen: 19 hrs ago

    *Fares displayed have been collected within the last 48hrs and may no longer be available at time of booking. Additional fees and charges for optional products and services may apply.
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    Travel from San Francisco to Porto with Air France

    Whether you're looking for a last-minute San Francisco - Porto (Portugal) flight or planning a flight at a later date, take advantage of our lowest prices for your travel dates on this site. Take a look at the next 6 months and find the best price to fly whit Air France from San Francisco (SFO) to Porto (OPO) or directly pick your departure date if your trip to Porto (Portugal) is already scheduled.

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