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Cheap flights from Porto to San Francisco from $799

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Porto to San Francisco departing on 10/13. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Porto to San Francisco

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
7:10 am - 11:50 pm
OPO
-
OAK
24h 40m
3 stops
Multiple Airlines Logo
12:30 pm - 11:50 pm
OAK
-
OPO
27h 20m
3 stops
$1,010Multiple Airlines
Wed, Jul 15 - Sun, Jul 19
Delta Logo
11:25 am - 11:52 am
OPO
-
OAK
56h 27m
2 stops
Delta Logo
6:00 am - 9:50 pm
OAK
-
OPO
31h 50m
2 stops
$1,079Delta
Thu, Aug 6 - Thu, Aug 13
Delta Logo
11:25 am - 11:52 am
OPO
-
OAK
56h 27m
2 stops
Delta Logo
5:00 pm - 3:30 pm
OAK
-
OPO
38h 30m
2 stops
$1,090Delta
Thu, Aug 6 - Sat, Aug 15
Delta Logo
11:25 am - 11:52 am
OPO
-
OAK
56h 27m
2 stops
Delta Logo
5:00 pm - 8:30 am
OAK
-
OPO
55h 30m
2 stops
$1,092Delta
Thu, Aug 6 - Fri, Aug 14
KLM Logo
5:00 am - 11:50 pm
OPO
-
OAK
26h 50m
2 stops
KLM Logo
12:30 pm - 10:15 pm
OAK
-
OPO
25h 45m
2 stops
$1,144KLM
Wed, Jul 15 - Sun, Jul 19
Delta Logo
5:00 am - 4:21 pm
OPO
-
OAK
19h 21m
2 stops
Delta Logo
6:00 am - 3:25 pm
OAK
-
OPO
25h 25m
2 stops
$1,162Delta
Fri, Jul 31 - Thu, Aug 13
Delta Logo
5:55 am - 11:56 pm
OPO
-
OAK
26h 01m
2 stops
Delta Logo
5:00 pm - 10:15 pm
OAK
-
OPO
21h 15m
2 stops
$1,164Delta
Fri, Aug 14 - Fri, Aug 21
Delta Logo
5:00 am - 4:21 pm
OPO
-
OAK
19h 21m
2 stops
Delta Logo
5:00 pm - 3:30 pm
OAK
-
OPO
38h 30m
2 stops
$1,173Delta
Fri, Jul 31 - Sat, Aug 15
Delta Logo
5:00 am - 4:21 pm
OPO
-
OAK
19h 21m
2 stops
Delta Logo
5:00 pm - 8:30 am
OAK
-
OPO
55h 30m
2 stops
$1,175Delta
Fri, Jul 31 - Fri, Aug 14
Delta Logo
5:00 am - 4:14 pm
OPO
-
OAK
19h 14m
2 stops
Delta Logo
6:00 am - 3:25 pm
OAK
-
OPO
25h 25m
2 stops
$1,203Delta
Wed, Aug 5 - Thu, Aug 13

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Delta flights from Porto to Oakland, California

Our best Delta deals on Porto to Oakland, California flight tickets
Delta
Aug 6
OPO11:25 amPorto
56h 27m
2 stops
OAK11:52 amOakland
Aug 13
OAK6:00 amOakland
31h 50m
2 stops
OPO9:50 pmPorto
$1,079
Delta
Aug 6
OPO11:25 amPorto
56h 27m
2 stops
OAK11:52 amOakland
Aug 15
OAK5:00 pmOakland
38h 30m
2 stops
OPO3:30 pmPorto
$1,090
Delta
Aug 6
OPO11:25 amPorto
56h 27m
2 stops
OAK11:52 amOakland
Aug 14
OAK5:00 pmOakland
55h 30m
2 stops
OPO8:30 amPorto
$1,092

British Airways flights from Porto to Oakland, California

Our best British Airways deals on Porto to Oakland, California flight tickets
British Airways
Aug 1
OPO7:55 pmPorto
33h 46m
2 stops
OAK9:41 pmOakland
Aug 15
OAK2:55 pmOakland
45h 40m
2 stops
OPO8:35 pmPorto
$1,411
British Airways
Aug 1
OPO7:55 pmPorto
33h 46m
2 stops
OAK9:41 pmOakland
Aug 13
OAK2:55 pmOakland
44h 10m
2 stops
OPO7:05 pmPorto
$1,518

momondo Fare Finder

 
Customize your flight search to find flights from Porto to Oakland, California that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated June 30, 2026.
Use the filters below to find and compare flights from Porto to Oakland, California that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortoOakland

OPO - OAK

OPOOAK

Porto

Wed 7/15

7:10 am-11:50 pm

3 stops24h 40m

Oakland

Sun 7/19

12:30 pm-11:50 pm

3 stops27h 20m

$1,010

PortoOakland

OPO - OAK

OPOOAK

Porto

Thu 8/6

11:25 am-11:52 am

2 stops56h 27m

Oakland

Thu 8/13

6:00 am-9:50 pm

2 stops31h 50m

$1,079

PortoOakland

OPO - OAK

OPOOAK

Porto

Thu 8/6

11:25 am-11:52 am

2 stops56h 27m

Oakland

Sat 8/15

5:00 pm-3:30 pm

2 stops38h 30m

$1,090

PortoOakland

OPO - OAK

OPOOAK

Porto

Thu 8/6

11:25 am-11:52 am

2 stops56h 27m

Oakland

Fri 8/14

5:00 pm-8:30 am

2 stops55h 30m

$1,092

PortoOakland

OPO - OAK

OPOOAK

Porto

Wed 7/15

5:00 am-11:50 pm

2 stops26h 50m

Oakland

Sun 7/19

12:30 pm-10:15 pm

2 stops25h 45m

$1,144

PortoOakland

OPO - OAK

OPOOAK

Porto

Fri 7/31

5:00 am-4:21 pm

2 stops19h 21m

Oakland

Thu 8/13

6:00 am-3:25 pm

2 stops25h 25m

$1,162

PortoOakland

OPO - OAK

OPOOAK

Porto

Fri 8/14

5:55 am-11:56 pm

2 stops26h 01m

Oakland

Fri 8/21

5:00 pm-10:15 pm

2 stops21h 15m

$1,164

PortoOakland

OPO - OAK

OPOOAK

Porto

Fri 7/31

5:00 am-4:21 pm

2 stops19h 21m

Oakland

Sat 8/15

5:00 pm-3:30 pm

2 stops38h 30m

$1,173

PortoOakland

OPO - OAK

OPOOAK

Porto

Fri 7/31

5:00 am-4:21 pm

2 stops19h 21m

Oakland

Fri 8/14

5:00 pm-8:30 am

2 stops55h 30m

$1,175
Quickest round-trip

PortoOakland

OPO - OAK

OPOOAK

Porto

Wed 8/5

5:00 am-4:14 pm

2 stops19h 14m

Oakland

Thu 8/13

6:00 am-3:25 pm

2 stops25h 25m

$1,203

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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2

See travel insights to San Francisco from

How to get the cheapest flight ticket from Porto to Oakland, California

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Porto to Oakland?

KLM and British Airways are the most popular carriers operating from Porto to Oakland

When to book flights from Porto to Oakland, California

Are you open to changing your travel dates? Check out the ideal times to fly from Porto to Oakland, California according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Porto to Oakland, California (OPO to OAK) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Porto to Oakland, California

Fastest flight time

24h 40m

Direct flights

None
The fastest flight from Porto to Oakland, California takes 24h 40m
There are no direct flights from Porto to Oakland, California. There are no popular flight routes from Porto to Oakland, California.
Search flight deals

Frequently asked questions about flying from Porto to Oakland, California

  • How far is Porto to Oakland by plane?

    Oakland is 5558.9 mi away from Porto. Typically, this will take 24h 40m by plane in normal conditions.

  • When did momondo last update prices for flights from Porto Airport to Oakland Airport?

    Prices for flights from Porto Airport to Oakland Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Porto Airport to Oakland Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Porto Airport to Oakland Airport.

  • What documentation or ID do you need to fly to Oakland Airport?

    The necessary travel and health documents for your Oakland Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Porto to Oakland?

It is quick and easy to find Porto to Oakland flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Oakland that suits you.

Can I find flights from Porto to Oakland with flexible booking policies on momondo?

Yes. All flights to Oakland from Porto on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Porto to Oakland?

Once all potential Porto to Oakland flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Porto to Oakland right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Porto to Oakland flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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