Cheap flights from San Francisco (SFO) to Porto (OPO)
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The best prices from San Francisco to Porto are usually found in October or April, booked 40 days in advance, depart on a Monday or Tuesday and return on a Thursday
How to find the cheapest flight from
San Francisco (SFO) to Porto (OPO)
All the information you need to plan the best SFO to OPO flight in 2021: compare San Francisco to Porto flight prices with the expected peak season, weather and rainfall in Porto.
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SFO - OPO Price
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$691 - $1,490
|
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OPO Temperature
|
48.2 - 68 °F
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OPO Precipitation
|
0.7 - 7.7 inches
|
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Popular in December High demand for flights, 38% potential price rise |
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Cheapest in October Best time to find cheap flights, 25% potential price drop |
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Round-trip from $691 From San Francisco to Porto |
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One-way from $507 One-way flight from San Francisco to Porto |
What is the cheapest month to fly from San Francisco to Porto?
Due to multiple factors, expect to potentially pay more when booking in December. For low rates, October can be a great choice for travel to Porto. Flights to Porto from San Francisco in October are about $917 on average during October, but can be found for as low as $507.
How far in advance should I book a flight from San Francisco to Porto?
To save on the cost of your flight from San Francisco to Porto, book at least 41 days before your planned departure. Booking around this time can save you about 46% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $1,083 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $1,125.
When is the cheapest time to fly from San Francisco to Porto (SFO - OPO)?
Unlike in the morning, when flights are generally more expensive, you can save up to 32% on flights from San Francisco to Porto by exploring options for tickets in the evening.
What is the cheapest day to fly round-trip from San Francisco to Porto?
Leaving on a Sunday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 50% on the overall cost on flights from San Francisco to Porto.
Cheap flights from San Francisco to Porto in December, January 2022
The best prices found for SFO to OPO flights for December, January
17 Jan - 9 Feb
$566pp
SFO
San Francisco
Multiple Airlines
2 STOPS
OPO
Porto
OPO
Porto
Multiple Airlines
2 STOPS
SFO
San Francisco
25 Jan - 9 Feb
$567pp
SFO
San Francisco
Delta
2 STOPS
OPO
Porto
OPO
Porto
Delta
1 STOP
SFO
San Francisco
17 Jan - 9 Feb
$568pp
SFO
San Francisco
Multiple Airlines
2 STOPS
OPO
Porto
OPO
Porto
KLM
1 STOP
SFO
San Francisco
San Francisco to Porto 2022 flight deals
Cheap flights to Porto from San Francisco found for this year
24 Dec - 9 Jan
$973pp
SFO
San Francisco
Lufthansa
1 STOP
OPO
Porto
OPO
Porto
Lufthansa
1 STOP
SFO
San Francisco
21 Dec - 30 Dec
$1,012pp
SFO
San Francisco
Multiple Airlines
2 STOPS
OPO
Porto
OPO
Porto
Multiple Airlines
3 STOPS
SFO
San Francisco
21 Dec - 30 Dec
$1,037pp
SFO
San Francisco
Multiple Airlines
3 STOPS
OPO
Porto
OPO
Porto
Multiple Airlines
3 STOPS
SFO
San Francisco
Last minute flights from San Francisco to Porto
Late deals on round-trip flights to Porto from San Francisco, departing today and this week
18 Dec - 30 Dec
$1,952pp
SFO
San Francisco
United Airlines
2 STOPS
OPO
Porto
OPO
Porto
United Airlines
1 STOP
SFO
San Francisco
16 Dec - 3 Jan
$1,972pp
SFO
San Francisco
Turkish Airlines
1 STOP
OPO
Porto
OPO
Porto
Turkish Airlines
1 STOP
SFO
San Francisco
16 Dec - 3 Jan
$2,070pp
SFO
San Francisco
Multiple Airlines
1 STOP
OPO
Porto
OPO
Porto
Multiple Airlines
3 STOPS
SFO
San Francisco
One-way flights to Porto from San Francisco
The cheapest one-way flights from San Francisco to Porto
1:15 pm - 4:45 am
Turkish Airlines
1 Stop
31h 30m
SFO - OPO
$507
11:40 am - 2:00 pm
TAP AIR PORTUGAL
1 Stop
18h 20m
SFO - OPO
$534
2:30 am - 4:20 am
Multiple Airlines
2 Stops
17h 50m
SFO - OPO
$582
FlightHub
Related info for your journey
Useful info, stats and facts about <span class="emphasized">San Francisco</span> to <span class="emphasized">Porto</span> flights.
COVID Restrictions
View COVID Travel Restrictions for Porto, Portugal
Hide COVID Travel Restrictions for Porto, Portugal
Alternative routes for San Francisco to Porto
See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Faro
from $596 pp
Fresno Airterminal to Lisbon Humberto Delgado
from $762 pp
Burbank Bob Hope to Faro
from $968 pp
Long Beach Municipal to Faro
from $1,008 pp
Destination information for Porto
Things to know before you go - useful duration and weather info for your trip from San Francisco to Porto.
Today's exchange rate
$1 = €0.89
Average temperature for December in Porto
59.0 °F
Avg rainfall for December in Porto
6.1 ″
Airports servicing Porto
Top 6 airlines flying from San Francisco to Porto
The chart below displays the airlines Cheapflights users traveling from San Francisco to Porto choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
| Airline | Cheapest | Average | Flexibility | On-time | COVID-19 safety | |
|---|---|---|---|---|---|---|
|
$432 | $995 | No cancel fee | N/A | ||
|
$532 | $1,509 | No cancel fee | 76% | ||
|
$555 | $1,031 | No cancel fee | 77% | ||
|
$774 | $1,557 | No cancel fee | 79% | ||
|
$775 | $1,187 | No cancel fee | 67% | ||
|
$947 | $2,005 | No cancel fee | 69% |