Cheap flights from Porto to San Francisco from $0
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Discover deals on Porto to San Francisco flights
Typical range $0–$0•Cheapest found $0
Checking latest prices...Find cheap flights from Porto to San Francisco
Best
1 stop
9 Feb
DEP
06:55
OPO
1×
14:35
SFO
15h 40m
9 Feb
DEPARTURE
06:55 - 14:35
15h 40m
OPO
1 stop
SFO
1 stop
9 Feb
DEP
10:55
OPO
1×
16:45
SFO
--
9 Feb
DEPARTURE
10:55 - 16:45
--
OPO
1 stop
SFO
Iberia flights from Porto to San Francisco
Our best Iberia deals on Porto to San Francisco tickets
Best
2 stops
9 Feb
DEP
08:20
OPO
2×
21:37
SFO
21h 17m
9 Feb
DEPARTURE
08:20 - 21:37
21h 17m
OPO
2 stops
SFO
2 stops
9 Feb
DEP
08:20
OPO
2×
23:12
SFO
22h 52m
9 Feb
DEPARTURE
08:20 - 23:12
22h 52m
OPO
2 stops
SFO
American Airlines flights from Porto to San Francisco
Our best American Airlines deals on Porto to San Francisco tickets
Best
2 stops
9 Feb
DEP
08:20
OPO
2×
20:48
SFO
20h 28m
9 Feb
DEPARTURE
08:20 - 20:48
20h 28m
OPO
2 stops
SFO
2 stops
9 Feb
DEP
08:20
OPO
2×
20:25
SFO
20h 5m
9 Feb
DEPARTURE
08:20 - 20:25
20h 5m
OPO
2 stops
SFO
TAP Air Portugal flights from Porto to San Francisco
Our best TAP Air Portugal deals on Porto to San Francisco tickets
Best
1 stop
9 Feb
DEP
06:55
OPO
1×
14:35
SFO
15h 40m
9 Feb
DEPARTURE
06:55 - 14:35
15h 40m
OPO
1 stop
SFO
1 stop
9 Feb
DEP
06:55
OPO
1×
14:35
SFO
15h 40m
9 Feb
DEPARTURE
06:55 - 14:35
15h 40m
OPO
1 stop
SFO
Turkish Airlines flights from Porto to San Francisco
Our best Turkish Airlines deals on Porto to San Francisco tickets
Best
1 stop
9 Feb
DEP
10:55
OPO
1×
16:45
SFO
--
9 Feb
DEPARTURE
10:55 - 16:45
--
OPO
1 stop
SFO
1 stop
9 Feb
DEP
16:10
OPO
1×
16:45
SFO
--
9 Feb
DEPARTURE
16:10 - 16:45
--
OPO
1 stop
SFO
What's the cheapest day of the week to fly from Porto to San Francisco?
If your flying dates are flexible, you should consider flying to San Francisco on a Tue, as we generally find the cheapest rates on that day. On the other hand, Thu is the most expensive day to fly.
What is the cheapest month to fly from Porto to San Francisco?
The cheapest month for flights from Porto to San Francisco is Sep, where tickets cost $910 on average. The most expensive months are Jul.
JanFebMarAprMayJunJulAugSepOctNovDec
$1314$1112$910
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Everything you should know
Cheapest one-way flight
$1001
Typical prices: $1001–$1301
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 Porto to San Francisco currently costs AUD $1001. Prices typically range from $1001 to $1301. Prices change frequently, so we recommend booking early and being flexible with your travel dates.