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Cheap flights from Oakland, California to Porto from $590

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Oakland, California to Porto departing on 12/9. 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

Delta Logo
5:45 am - 10:30 amOAK-OPO
20h 45m2 stops
Delta Logo
11:10 am - 4:34 pmOPO-OAK
37h 24m2 stops
$590Delta
Find Deal
Tue, Dec 9 - Tue, Jan 13
Delta Logo
5:45 am - 10:30 amOAK-OPO
20h 45m2 stops
Delta Logo
11:15 am - 4:34 pmOPO-OAK
37h 19m2 stops
$591Delta
Find Deal
Tue, Dec 9 - Wed, Jan 14
Delta Logo
5:45 am - 10:30 amOAK-OPO
20h 45m2 stops
Delta Logo
11:15 am - 4:34 pmOPO-OAK
37h 19m2 stops
$641Delta
Find Deal
Sun, Dec 7 - Mon, Jan 19
Delta Logo
12:30 pm - 10:30 amOAK-OPO
38h 00m2 stops
Delta Logo
11:15 am - 11:53 pmOPO-OAK
44h 38m2 stops
$647Delta
Find Deal
Sat, Dec 6 - Thu, Jan 22
Delta Logo
5:45 am - 10:30 amOAK-OPO
44h 45m2 stops
Delta Logo
11:15 am - 4:14 pmOPO-OAK
36h 59m2 stops
$667Delta
Find Deal
Wed, Dec 3 - Sun, Dec 7
Delta Logo
5:45 am - 10:30 amOAK-OPO
20h 45m2 stops
Delta Logo
6:30 am - 4:14 pmOPO-OAK
41h 44m2 stops
$681Delta
Find Deal
Wed, Dec 3 - Sun, Dec 7
Delta Logo
12:30 pm - 10:30 amOAK-OPO
38h 00m2 stops
Delta Logo
6:05 am - 11:53 pmOPO-OAK
49h 48m2 stops
$687Delta
Find Deal
Fri, Dec 5 - Tue, Jan 20
Delta Logo
5:45 am - 10:30 amOAK-OPO
44h 45m2 stops
Delta Logo
6:35 am - 4:34 pmOPO-OAK
41h 59m2 stops
$707Delta
Find Deal
Thu, Dec 4 - Thu, Jan 22
British Airways Logo
6:40 am - 5:35 pmOAK-OPO
26h 55m2 stops
British Airways Logo
4:55 pm - 5:43 pmOPO-OAK
32h 48m2 stops
$916British Airways
Find Deal
Tue, Dec 9 - Thu, Jan 8
British Airways Logo
6:40 am - 7:00 pmOAK-OPO
28h 20m2 stops
British Airways Logo
5:30 pm - 11:38 pmOPO-OAK
38h 08m2 stops
$951British Airways
Find Deal
Fri, Dec 12 - Mon, Jan 12

Delta flights from Oakland, California to Porto

Our best Delta deals on Oakland, California to Porto flight tickets
Delta
Dec 9
OAK5:45 amOakland
20h 45m
2 stops
OPO10:30 amPorto
Jan 13
OPO11:10 amPorto
37h 24m
2 stops
OAK4:34 pmOakland
$590
Find similar
Delta
Dec 9
OAK5:45 amOakland
20h 45m
2 stops
OPO10:30 amPorto
Jan 14
OPO11:15 amPorto
37h 19m
2 stops
OAK4:34 pmOakland
$591
Find similar
Delta
Dec 7
OAK5:45 amOakland
20h 45m
2 stops
OPO10:30 amPorto
Jan 19
OPO11:15 amPorto
37h 19m
2 stops
OAK4:34 pmOakland
$641
Find similar

British Airways flights from Oakland, California to Porto

Our best British Airways deals on Oakland, California to Porto flight tickets
British Airways
Dec 9
OAK6:40 amOakland
26h 55m
2 stops
OPO5:35 pmPorto
Jan 8
OPO4:55 pmPorto
32h 48m
2 stops
OAK5:43 pmOakland
$916
Find similar
British Airways
Dec 12
OAK6:40 amOakland
28h 20m
2 stops
OPO7:00 pmPorto
Jan 12
OPO5:30 pmPorto
38h 08m
2 stops
OAK11:38 pmOakland
$951
Find similar
British Airways
Dec 15
OAK2:31 pmOakland
43h 04m
2 stops
OPO5:35 pmPorto
Jan 12
OPO5:30 pmPorto
38h 08m
2 stops
OAK11:38 pmOakland
$986
Find similar

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 September 17, 2025.
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

Tue 12/9

5:45 am-10:30 am

2 stops20h 45m

Porto

Tue 1/13

11:10 am-4:34 pm

2 stops37h 24m

$590

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Tue 12/9

5:45 am-10:30 am

2 stops20h 45m

Porto

Wed 1/14

11:15 am-4:34 pm

2 stops37h 19m

$591

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Sun 12/7

5:45 am-10:30 am

2 stops20h 45m

Porto

Mon 1/19

11:15 am-4:34 pm

2 stops37h 19m

$641

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Sat 12/6

12:30 pm-10:30 am

2 stops38h 00m

Porto

Thu 1/22

11:15 am-11:53 pm

2 stops44h 38m

$647

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Wed 12/3

5:45 am-10:30 am

2 stops44h 45m

Porto

Sun 12/7

11:15 am-4:14 pm

2 stops36h 59m

$667

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Wed 12/3

5:45 am-10:30 am

2 stops20h 45m

Porto

Sun 12/7

6:30 am-4:14 pm

2 stops41h 44m

$681

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Fri 12/5

12:30 pm-10:30 am

2 stops38h 00m

Porto

Tue 1/20

6:05 am-11:53 pm

2 stops49h 48m

$687

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Thu 12/4

5:45 am-10:30 am

2 stops44h 45m

Porto

Thu 1/22

6:35 am-4:34 pm

2 stops41h 59m

$707

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Tue 12/9

6:40 am-5:35 pm

2 stops26h 55m

Porto

Thu 1/8

4:55 pm-5:43 pm

2 stops32h 48m

$916

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Fri 12/12

6:40 am-7:00 pm

2 stops28h 20m

Porto

Mon 1/12

5:30 pm-11:38 pm

2 stops38h 08m

$951

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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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 day to depart on your flight to Porto?

The cheapest day to depart on your flight to Porto is on a Thursday when prices can be found for as low as $981. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Wednesday because tickets tend to average around $1,148. These prices are subject to change though, so be sure to set up a Price Alert for flights to Porto.

What is the cheapest time of day to depart on your flight to Porto?

In the afternoon is the cheapest time of day to fly from Oakland, California to Porto when you can find flight prices for as low as $896. Flying to Porto in the afternoon is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $1,138 on average. Flights to Porto from Oakland, California in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

Direct flights

None
There are no direct flights from Oakland, California to Porto. There are no popular flight routes from Oakland, California to Porto.
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  • 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 18h 55m.

  • 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
Aveiro
Coimbra
Braga
Matosinhos
Caminha
Guimarães
Esposende
Lamego
Chaves
Espinho
Arcos de Valdevez
Viseu
Ponte de Lima
Pinhao
Santa Maria da Feira
Curia
Penafiel
Mesao Frio
Mira

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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