Cheap flights from San Francisco to Porto from $0
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Discover deals on San Francisco to Porto flights
Typical range $0–$0•Cheapest found $0
Checking latest prices...Find cheap flights from San Francisco to Porto
Best
1 stop
9 Feb
DEP
16:35
SFO
1×
18:15
OPO
17h 40m
9 Feb
DEPARTURE
16:35 - 18:15
17h 40m
SFO
1 stop
OPO
1 stop
9 Feb
DEP
16:35
SFO
1×
17:00
OPO
16h 25m
9 Feb
DEPARTURE
16:35 - 17:00
16h 25m
SFO
1 stop
OPO
TAP Air Portugal flights from San Francisco to Porto
Our best TAP Air Portugal deals on San Francisco to Porto tickets
Best
1 stop
9 Feb
DEP
16:35
SFO
1×
18:15
OPO
17h 40m
9 Feb
DEPARTURE
16:35 - 18:15
17h 40m
SFO
1 stop
OPO
1 stop
9 Feb
DEP
16:35
SFO
1×
17:00
OPO
16h 25m
9 Feb
DEPARTURE
16:35 - 17:00
16h 25m
SFO
1 stop
OPO
American Airlines flights from San Francisco to Porto
Our best American Airlines deals on San Francisco to Porto tickets
Best
2 stops
9 Feb
DEP
06:00
SFO
2×
11:45
OPO
21h 45m
9 Feb
DEPARTURE
06:00 - 11:45
21h 45m
SFO
2 stops
OPO
2 stops
9 Feb
DEP
07:00
SFO
2×
11:45
OPO
20h 45m
9 Feb
DEPARTURE
07:00 - 11:45
20h 45m
SFO
2 stops
OPO
Turkish Airlines flights from San Francisco to Porto
Our best Turkish Airlines deals on San Francisco to Porto tickets
Best
1 stop
9 Feb
DEP
18:50
SFO
1×
15:10
OPO
--
9 Feb
DEPARTURE
18:50 - 15:10
--
SFO
1 stop
OPO
1 stop
9 Feb
DEP
18:50
SFO
1×
09:55
OPO
--
9 Feb
DEPARTURE
18:50 - 09:55
--
SFO
1 stop
OPO
British Airways flights from San Francisco to Porto
Our best British Airways deals on San Francisco to Porto tickets
Best
1 stop
9 Feb
DEP
17:30
SFO
1×
17:35
OPO
16h 5m
9 Feb
DEPARTURE
17:30 - 17:35
16h 5m
SFO
1 stop
OPO
2 stops
9 Feb
DEP
07:00
SFO
2×
11:45
OPO
20h 45m
9 Feb
DEPARTURE
07:00 - 11:45
20h 45m
SFO
2 stops
OPO
What's the cheapest day of the week to fly from San Francisco to Porto?
If your flying dates are flexible, you should consider flying to Porto on a Mon, as we generally find the cheapest rates on that day. On the other hand, Wed is the most expensive day to fly.
What is the cheapest month to fly from San Francisco to Porto?
The cheapest month for flights from San Francisco to Porto is Oct, where tickets cost $613 on average. The most expensive months are Dec.
JanFebMarAprMayJunJulAugSepOctNovDec
$889$751$613
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Everything you should know
Cheapest one-way flight
$645
Typical prices: $645–$945
When to book
6 weeks
in advance to save around 35%
Good to know
💰
Save money
Compare prices across airlines to find the best deal. Prices can vary significantly.
📅
Be flexible
Flying midweek or in off-peak seasons can save you up to 30% on airfare.
⏰
Book early
Booking 6+ weeks in advance typically offers the best prices.
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Frequently asked questions
The cheapest flight from San Francisco to Porto currently costs AUD $645. Prices typically range from $645 to $945. Prices change frequently, so we recommend booking early and being flexible with your travel dates.