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Cheap flights from Oakland, California to Porto from $733

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 6/27. 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
0 bags

Find the cheapest flights from Oakland, California to Porto

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
6:00 am - 8:30 am
OAK
-
OPO
42h 30m
2 stops
Delta Logo
5:00 am - 4:25 pm
OPO
-
OAK
19h 25m
2 stops
$1,060Delta
Wed, May 13 - Tue, May 26
Delta Logo
5:05 pm - 8:30 am
OAK
-
OPO
55h 25m
2 stops
Delta Logo
5:00 am - 11:57 pm
OPO
-
OAK
26h 57m
2 stops
$1,066Delta
Tue, May 12 - Tue, May 26
British Airways Logo
10:22 am - 7:30 pm
OAK
-
OPO
25h 08m
2 stops
British Airways Logo
9:25 pm - 7:33 pm
OPO
-
OAK
30h 08m
2 stops
$1,410British Airways
Tue, Jun 23 - Mon, Jun 29
British Airways Logo
10:22 am - 8:05 pm
OAK
-
OPO
25h 43m
2 stops
British Airways Logo
8:55 pm - 7:33 pm
OPO
-
OAK
30h 38m
2 stops
$1,477British Airways
Mon, Jun 22 - Tue, Jun 30
British Airways Logo
10:22 am - 8:05 pm
OAK
-
OPO
25h 43m
2 stops
British Airways Logo
7:55 pm - 7:33 pm
OPO
-
OAK
31h 38m
2 stops
$1,544British Airways
Mon, Jun 22 - Thu, Jul 2
British Airways Logo
10:22 am - 8:40 pm
OAK
-
OPO
26h 18m
2 stops
British Airways Logo
8:55 pm - 7:33 pm
OPO
-
OAK
30h 38m
2 stops
$1,547British Airways
Sat, Jun 20 - Tue, Jun 30
British Airways Logo
10:20 am - 8:35 pm
OAK
-
OPO
26h 15m
2 stops
British Airways Logo
8:55 pm - 7:33 pm
OPO
-
OAK
30h 38m
2 stops
$1,555British Airways
Sun, Jun 21 - Tue, Jun 30
British Airways Logo
1:01 pm - 10:25 am
OAK
-
OPO
37h 24m
2 stops
British Airways Logo
11:15 am - 7:46 pm
OPO
-
OAK
40h 31m
2 stops
$1,573British Airways
Wed, Jun 3 - Fri, Jun 12
British Airways Logo
10:22 am - 8:40 pm
OAK
-
OPO
26h 18m
2 stops
British Airways Logo
7:55 pm - 7:33 pm
OPO
-
OAK
31h 38m
2 stops
$1,614British Airways
Sat, Jun 20 - Thu, Jul 2
British Airways Logo
10:20 am - 8:35 pm
OAK
-
OPO
26h 15m
2 stops
British Airways Logo
7:55 pm - 7:33 pm
OPO
-
OAK
31h 38m
2 stops
$1,622British Airways
Sun, Jun 21 - Thu, Jul 2

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Delta flights from Oakland, California to Porto

Our best Delta deals on Oakland, California to Porto flight tickets
Delta
May 13
OAK6:00 amOakland
42h 30m
2 stops
OPO8:30 amPorto
May 26
OPO5:00 amPorto
19h 25m
2 stops
OAK4:25 pmOakland
$1,060
Delta
May 12
OAK5:05 pmOakland
55h 25m
2 stops
OPO8:30 amPorto
May 26
OPO5:00 amPorto
26h 57m
2 stops
OAK11:57 pmOakland
$1,066
Delta
May 11
OAK6:00 amOakland
25h 25m
2 stops
OPO3:25 pmPorto
May 26
OPO5:00 amPorto
19h 25m
2 stops
OAK4:25 pmOakland
$1,640

British Airways flights from Oakland, California to Porto

Our best British Airways deals on Oakland, California to Porto flight tickets
British Airways
Jun 23
OAK10:22 amOakland
25h 08m
2 stops
OPO7:30 pmPorto
Jun 29
OPO9:25 pmPorto
30h 08m
2 stops
OAK7:33 pmOakland
$1,410
British Airways
Jun 22
OAK10:22 amOakland
25h 43m
2 stops
OPO8:05 pmPorto
Jun 30
OPO8:55 pmPorto
30h 38m
2 stops
OAK7:33 pmOakland
$1,477
British Airways
Jun 22
OAK10:22 amOakland
25h 43m
2 stops
OPO8:05 pmPorto
Jul 2
OPO7:55 pmPorto
31h 38m
2 stops
OAK7:33 pmOakland
$1,544

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 April 28, 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

Cheapest round-trip

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Wed 5/13

6:00 am-8:30 am

2 stops42h 30m

Porto

Tue 5/26

5:00 am-4:25 pm

2 stops19h 25m

$1,060

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Tue 5/12

5:05 pm-8:30 am

2 stops55h 25m

Porto

Tue 5/26

5:00 am-11:57 pm

2 stops26h 57m

$1,066
Quickest round-trip

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Tue 6/23

10:22 am-7:30 pm

2 stops25h 08m

Porto

Mon 6/29

9:25 pm-7:33 pm

2 stops30h 08m

$1,410

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Mon 6/22

10:22 am-8:05 pm

2 stops25h 43m

Porto

Tue 6/30

8:55 pm-7:33 pm

2 stops30h 38m

$1,477

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Mon 6/22

10:22 am-8:05 pm

2 stops25h 43m

Porto

Thu 7/2

7:55 pm-7:33 pm

2 stops31h 38m

$1,544

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Sat 6/20

10:22 am-8:40 pm

2 stops26h 18m

Porto

Tue 6/30

8:55 pm-7:33 pm

2 stops30h 38m

$1,547

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Sun 6/21

10:20 am-8:35 pm

2 stops26h 15m

Porto

Tue 6/30

8:55 pm-7:33 pm

2 stops30h 38m

$1,555

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Wed 6/3

1:01 pm-10:25 am

2 stops37h 24m

Porto

Fri 6/12

11:15 am-7:46 pm

2 stops40h 31m

$1,573

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Sat 6/20

10:22 am-8:40 pm

2 stops26h 18m

Porto

Thu 7/2

7:55 pm-7:33 pm

2 stops31h 38m

$1,614

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Sun 6/21

10:20 am-8:35 pm

2 stops26h 15m

Porto

Thu 7/2

7:55 pm-7:33 pm

2 stops31h 38m

$1,622

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 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 and British Airways 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 44% 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

33h 03m

Direct flights

None
The fastest flight from Oakland, California to Porto takes 33h 03m
There are no direct flights from Oakland, California to Porto. There are no popular flight routes from Oakland, California to Porto.
Search flight deals

Frequently asked questions about flying from Oakland, California to Porto

  • 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 33h 03m.

  • 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
Braga
Aveiro
Matosinhos
Lamego
Esposende
Chaves
Pinhao
Guimarães
Espinho
Arcos de Valdevez
Ponte de Lima
Viseu
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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