Flights San Francisco – Porto (SFO-OPO) from $737*

*Modifying this information may result in a different fare

Book flights from San Francisco to Porto

Sep 2026
From$1,046*
Seen: 1 hour ago
Round-trip/Economy
Oct 2026
From$737*
Seen: 11 hrs ago
Round-trip/Economy
Nov 2026
From$737*
Seen: 9 minutes ago
Round-trip/Economy
cmp-daily-histogram-bars-legend-min-price-aria-label $787
cmp-daily-histogram-bars-legend-max-price-aria-label $1.2K
Displaying fares for September-2026
  • SFO–OPO, 09/26/2026 – 10/10/2026: From $1,183
    26

    Sa

    sep

  • SFO–OPO, 09/27/2026 – 10/11/2026: From $1,113
    27

    Su

  • SFO–OPO, 09/28/2026 – 10/12/2026: From $1,046
    28

    Mo

  • SFO–OPO, 09/29/2026 – 10/06/2026: From $1,046
    29

    Tu

  • SFO–OPO, 09/30/2026 – 10/07/2026: From $1,046
    30

    We

  • SFO–OPO, 10/01/2026 – 10/15/2026: From $1,183
    01

    Th

    oct

  • SFO–OPO, 10/02/2026 – 10/09/2026: From $1,190
    02

    Fr

  • SFO–OPO, 10/03/2026 – 10/31/2026: From $1,176
    03

    Sa

  • SFO–OPO, 10/04/2026 – 11/01/2026: From $1,121
    04

    Su

  • SFO–OPO, 10/05/2026 – 11/02/2026: From $999
    05

    Mo

  • SFO–OPO, 10/06/2026 – 11/03/2026: From $999
    06

    Tu

  • SFO–OPO, 10/07/2026 – 11/04/2026: From $999
    07

    We

  • SFO–OPO, 10/08/2026 – 11/05/2026: From $1,136
    08

    Th

  • SFO–OPO, 10/09/2026 – 11/06/2026: From $1,059
    09

    Fr

  • SFO–OPO, 10/10/2026 – 11/07/2026: From $1,109
    10

    Sa

  • SFO–OPO, 10/11/2026 – 11/08/2026: From $1,049
    11

    Su

  • SFO–OPO, 10/12/2026 – 11/02/2026: From $999
    12

    Mo

  • SFO–OPO, 10/13/2026 – 11/10/2026: From $953
    13

    Tu

  • SFO–OPO, 10/14/2026 – 11/04/2026: From $952
    14

    We

  • SFO–OPO, 10/15/2026 – 11/12/2026: From $1,078
    15

    Th

  • SFO–OPO, 10/16/2026 – 11/06/2026: From $1,132
    16

    Fr

  • SFO–OPO, 10/17/2026 – 11/07/2026: From $1,056
    17

    Sa

  • SFO–OPO, 10/18/2026 – 11/08/2026: From $1,003
    18

    Su

  • SFO–OPO, 10/19/2026 – 11/16/2026: From $952
    19

    Mo

  • SFO–OPO, 10/20/2026 – 11/10/2026: From $953
    20

    Tu

  • SFO–OPO, 10/21/2026 – 11/04/2026: From $956
    21

    We

  • SFO–OPO, 10/22/2026 – 11/05/2026: From $1,003
    22

    Th

  • SFO–OPO, 10/23/2026 – 11/20/2026: From $1,011
    23

    Fr

  • SFO–OPO, 10/24/2026 – 11/21/2026: From $841
    24

    Sa

  • SFO–OPO, 10/25/2026 – 11/08/2026: From $787
    25

    Su

    • Range$787-$1,190

    *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    		10/26/2026 - 11/02/2026

    From

    $737

    Seen: 11 hrs ago

    San Francisco (SFO)Porto (OPO)Round-trip
    /
    Economy    		10/26/2026 - 11/23/2026

    From

    $737

    Seen: 11 hrs ago

    San Francisco (SFO)Porto (OPO)Round-trip
    /
    Economy    		10/27/2026 - 11/03/2026

    From

    $737

    Seen: 11 hrs ago

    San Francisco (SFO)Porto (OPO)Round-trip
    /
    Economy    		10/27/2026 - 11/17/2026

    From

    $737

    Seen: 11 hrs ago

    San Francisco (SFO)Porto (OPO)Round-trip
    /
    Economy    		10/27/2026 - 11/24/2026

    From

    $737

    Seen: 11 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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