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Cheap flights from Oakland, California to Porto from $683

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Oakland, California to Porto departing on 6/13. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Oakland, California to Porto

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
5:55 am - 3:25 pm
OAK
-
OPO
25h 30m
2 stops
Delta Logo
5:00 am - 11:54 pm
OPO
-
OAK
26h 54m
2 stops
$957Delta
Wed, Apr 22 - Tue, Apr 28
Delta Logo
5:55 am - 7:15 pm
OAK
-
OPO
29h 20m
2 stops
Delta Logo
5:00 am - 11:54 pm
OPO
-
OAK
26h 54m
2 stops
$1,124Delta
Thu, Apr 23 - Tue, Apr 28
British Airways Logo
9:53 am - 7:50 pm
OAK
-
OPO
25h 57m
2 stops
British Airways Logo
9:25 pm - 10:32 pm
OPO
-
OAK
33h 07m
2 stops
$1,303British Airways
Mon, May 4 - Sun, May 10
British Airways Logo
9:53 am - 7:50 pm
OAK
-
OPO
25h 57m
2 stops
British Airways Logo
9:25 pm - 10:32 pm
OPO
-
OAK
33h 07m
2 stops
$1,304British Airways
Mon, May 4 - Sun, May 10
Multiple Airlines Logo
7:00 am - 9:40 am
OAK
-
OPO
42h 40m
2 stops
Multiple Airlines Logo
4:40 pm - 11:43 pm
OPO
-
OAK
39h 03m
2 stops
$1,363Multiple Airlines
Sun, Apr 5 - Sun, Apr 12
KLM Logo
12:35 pm - 6:10 pm
OAK
-
OPO
21h 35m
2 stops
KLM Logo
5:00 am - 4:00 pm
OPO
-
OAK
19h 00m
2 stops
$1,767KLM
Sat, Apr 4 - Fri, Apr 10
Delta Logo
5:55 am - 10:20 am
OAK
-
OPO
20h 25m
2 stops
Delta Logo
12:45 pm - 11:49 pm
OPO
-
OAK
19h 04m
2 stops
$5,250Delta
Sat, Jun 13 - Fri, Jun 19

Delta flights from Oakland, California to Porto

Our best Delta deals on Oakland, California to Porto flight tickets
Delta
Apr 22
OAK5:55 amOakland
25h 30m
2 stops
OPO3:25 pmPorto
Apr 28
OPO5:00 amPorto
26h 54m
2 stops
OAK11:54 pmOakland
$957
Delta
Apr 23
OAK5:55 amOakland
29h 20m
2 stops
OPO7:15 pmPorto
Apr 28
OPO5:00 amPorto
26h 54m
2 stops
OAK11:54 pmOakland
$1,124
Delta
Jun 13
OAK5:55 amOakland
20h 25m
2 stops
OPO10:20 amPorto
Jun 19
OPO12:45 pmPorto
19h 04m
2 stops
OAK11:49 pmOakland
$5,250

British Airways flights from Oakland, California to Porto

Our best British Airways deals on Oakland, California to Porto flight tickets
British Airways
May 4
OAK9:53 amOakland
25h 57m
2 stops
OPO7:50 pmPorto
May 10
OPO9:25 pmPorto
33h 07m
2 stops
OAK10:32 pmOakland
$1,303
British Airways
May 4
OAK9:53 amOakland
25h 57m
2 stops
OPO7:50 pmPorto
May 10
OPO9:25 pmPorto
33h 07m
2 stops
OAK10:32 pmOakland
$1,304

momondo Fare Finder

 
Customize your flight search to find flights from Oakland, California to Porto 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 February 23, 2026.
Use the filters below to find and compare flights from Oakland, California to Porto that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Wed 4/22

5:55 am-3:25 pm

2 stops25h 30m

Porto

Tue 4/28

5:00 am-11:54 pm

2 stops26h 54m

$957

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Thu 4/23

5:55 am-7:15 pm

2 stops29h 20m

Porto

Tue 4/28

5:00 am-11:54 pm

2 stops26h 54m

$1,124

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Mon 5/4

9:53 am-7:50 pm

2 stops25h 57m

Porto

Sun 5/10

9:25 pm-10:32 pm

2 stops33h 07m

$1,303

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Mon 5/4

9:53 am-7:50 pm

2 stops25h 57m

Porto

Sun 5/10

9:25 pm-10:32 pm

2 stops33h 07m

$1,304

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Sun 4/5

7:00 am-9:40 am

2 stops42h 40m

Porto

Sun 4/12

4:40 pm-11:43 pm

2 stops39h 03m

$1,363

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Sat 4/4

12:35 pm-6:10 pm

2 stops21h 35m

Porto

Fri 4/10

5:00 am-4:00 pm

2 stops19h 00m

$1,767

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Sat 6/13

5:55 am-10:20 am

2 stops20h 25m

Porto

Fri 6/19

12:45 pm-11:49 pm

2 stops19h 04m

$5,250

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Sat 6/13

5:05 pm-6:10 pm

2 stops41h 05m

$683

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Sun 4/12

7:00 am-8:20 pm

2 stops29h 20m

$781

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Tue 6/9

5:05 pm-6:20 pm

2 stops17h 15m

$790

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 14 resultsSorted by cheapest first
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See travel insights to Porto from

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

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 Oakland to Porto?

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

What airlines fly to Porto?

TAP AIR PORTUGAL, United Airlines and Lufthansa are the top three most popular airlines that fly to Porto from Oakland, California according to our data. TAP AIR PORTUGAL is the first choice among our users, with 39% of people opting to fly with this airline when traveling to Porto. Keep in mind that there are 10 different airlines that fly to Porto on a routine basis, so you have a few additional options to choose from.

When to book flights from Oakland, California to Porto

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

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

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

Fastest flight time

20h 35m

Direct flights

None
The fastest flight from Oakland, California to Porto takes 20h 35m
There are no direct flights from Oakland, California to Porto. There are no popular flight routes from Oakland, California to Porto.
Search flight deals

  • How far is Oakland to Porto by plane?

    Oakland and Porto are 5558.9 mi apart from one another. A reasonable flight in good conditions will take 20h 35m.

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

    Prices for flights from Oakland Airport to Porto Airport refresh daily.

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Oakland Airport to Porto Airport.

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

    The travel and health documents required for your trip to Porto Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Porto Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Traveling to a place near Porto?

Book flights to Porto if you plan to visit one of these locations
Vila Nova de Gaia
Coimbra
Matosinhos
Braga
Aveiro
Esposende
Lamego
Guimarães
Pinhao
Chaves
Espinho
Arcos de Valdevez
Viseu
Ponte de Lima
Curia
Penafiel
Mesao Frio
Mira
Baiao

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Oakland to Porto for you.

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

All flight searches from Oakland to Porto on momondo can be filtered to show those which offer flexible booking policies.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Oakland to Porto.

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

Yes. momondo can track prices for Oakland to Porto 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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