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Cheap flights from Oakland, California to Porto from $890

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 12/3. 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 - 10:30 amOAK-OPO
20h 35m2 stops
Delta Logo
11:15 am - 12:08 amOPO-OAK
44h 53m2 stops
$890Delta
Find Deal
Wed, Dec 3 - Sun, Dec 7
Delta Logo
5:55 am - 10:30 amOAK-OPO
20h 35m2 stops
Delta Logo
11:15 am - 12:08 amOPO-OAK
44h 53m2 stops
$950Delta
Find Deal
Wed, Dec 3 - Sun, Dec 7
Delta Logo
12:30 pm - 10:30 amOAK-OPO
38h 00m2 stops
Delta Logo
11:15 am - 12:08 amOPO-OAK
44h 53m2 stops
$956Delta
Find Deal
Wed, Dec 3 - Sun, Dec 7
Multiple Airlines Logo
11:59 pm - 3:15 pmOAK-OPO
31h 16m3 stops
Multiple Airlines Logo
6:15 am - 7:57 pmOPO-OAK
45h 42m3 stops
$2,333Multiple Airlines
Find Deal
Sat, Dec 20 - Sun, Dec 28
Multiple Airlines Logo
6:10 am - 3:10 pmOAK-OPO
49h 00m2 stops
Multiple Airlines Logo
4:30 pm - 11:59 pmOPO-OAK
39h 29m2 stops
$3,092Multiple Airlines
Find Deal
Sat, Dec 20 - Sun, Dec 28
British Airways Logo
3:01 pm - 7:15 pmOAK-OPO
20h 14m2 stops
British Airways Logo
8:05 pm - 11:59 pmOPO-OAK
35h 54m2 stops
$4,089British Airways
Find Deal
Sat, Dec 20 - Sun, Dec 28

Delta flights from Oakland, California to Porto

Our best Delta deals on Oakland, California to Porto flight tickets
Delta
Dec 3
OAK5:55 amOakland
20h 35m
2 stops
OPO10:30 amPorto
Dec 7
OPO11:15 amPorto
44h 53m
2 stops
OAK12:08 amOakland
$890
Find similar
Delta
Dec 3
OAK5:55 amOakland
20h 35m
2 stops
OPO10:30 amPorto
Dec 7
OPO11:15 amPorto
44h 53m
2 stops
OAK12:08 amOakland
$950
Find similar
Delta
Dec 3
OAK12:30 pmOakland
38h 00m
2 stops
OPO10:30 amPorto
Dec 7
OPO11:15 amPorto
44h 53m
2 stops
OAK12:08 amOakland
$956
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 November 8, 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

Wed 12/3

5:55 am-10:30 am

2 stops20h 35m

Porto

Sun 12/7

11:15 am-12:08 am

2 stops44h 53m

$890

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Wed 12/3

5:55 am-10:30 am

2 stops20h 35m

Porto

Sun 12/7

11:15 am-12:08 am

2 stops44h 53m

$950

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Wed 12/3

12:30 pm-10:30 am

2 stops38h 00m

Porto

Sun 12/7

11:15 am-12:08 am

2 stops44h 53m

$956

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Sat 12/20

11:59 pm-3:15 pm

3 stops31h 16m

Porto

Sun 12/28

6:15 am-7:57 pm

3 stops45h 42m

$2,333

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Sat 12/20

6:10 am-3:10 pm

2 stops49h 00m

Porto

Sun 12/28

4:30 pm-11:59 pm

2 stops39h 29m

$3,092

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Sat 12/20

3:01 pm-7:15 pm

2 stops20h 14m

Porto

Sun 12/28

8:05 pm-11:59 pm

2 stops35h 54m

$4,089

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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 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 20h 14m.

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