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Cheap flights from Oakland, California to Porto from $850

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 8/16. 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 Oakland, California to Porto

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
6:00 am - 3:30 pm
OAK
-
OPO
25h 30m
2 stops
Delta Logo
11:25 am - 11:56 pm
OPO
-
OAK
44h 31m
2 stops
$850Delta
Sun, Aug 16 - Mon, Aug 24
Delta Logo
5:00 pm - 3:30 pm
OAK
-
OPO
38h 30m
2 stops
Delta Logo
11:25 am - 4:14 pm
OPO
-
OAK
36h 49m
2 stops
$856Delta
Sat, Aug 15 - Mon, Aug 24
Delta Logo
12:39 pm - 10:40 am
OAK
-
OPO
38h 01m
2 stops
Delta Logo
5:00 am - 11:59 pm
OPO
-
OAK
26h 59m
2 stops
$920Delta
Sun, Sep 13 - Fri, Sep 25
Delta Logo
6:00 am - 3:25 pm
OAK
-
OPO
25h 25m
2 stops
Delta Logo
12:25 pm - 11:56 pm
OPO
-
OAK
43h 31m
2 stops
$939Delta
Mon, Aug 10 - Tue, Aug 18
Delta Logo
6:00 am - 10:20 am
OAK
-
OPO
20h 20m
2 stops
Delta Logo
5:00 am - 11:59 pm
OPO
-
OAK
26h 59m
2 stops
$986Delta
Sat, Sep 12 - Thu, Sep 24
Delta Logo
6:00 am - 10:00 pm
OAK
-
OPO
32h 00m
2 stops
Delta Logo
4:25 pm - 10:38 pm
OPO
-
OAK
38h 13m
2 stops
$990Delta
Sat, Aug 15 - Fri, Aug 21
Delta Logo
6:00 am - 10:00 pm
OAK
-
OPO
32h 00m
2 stops
Delta Logo
11:45 am - 4:14 pm
OPO
-
OAK
36h 29m
2 stops
$1,029Delta
Sun, Aug 16 - Sun, Aug 23
Delta Logo
5:00 pm - 10:00 pm
OAK
-
OPO
45h 00m
2 stops
Delta Logo
11:45 am - 4:14 pm
OPO
-
OAK
36h 29m
2 stops
$1,035Delta
Sat, Aug 15 - Sun, Aug 23
Delta Logo
6:00 am - 10:00 pm
OAK
-
OPO
32h 00m
2 stops
Delta Logo
5:55 am - 4:14 pm
OPO
-
OAK
18h 19m
2 stops
$1,064Delta
Sun, Jul 19 - Wed, Aug 5
Delta Logo
6:00 am - 10:15 pm
OAK
-
OPO
32h 15m
2 stops
Delta Logo
5:55 am - 4:14 pm
OPO
-
OAK
18h 19m
2 stops
$1,069Delta
Wed, Jul 22 - Wed, Aug 5

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KLM flights from Oakland, California to Porto

Our best KLM deals on Oakland, California to Porto flight tickets
KLM
Sep 2
OAK5:00 pmOakland
21h 15m
2 stops
OPO10:15 pmPorto
Sep 8
OPO5:00 amPorto
19h 20m
2 stops
OAK4:20 pmOakland
$1,203
KLM
Jul 20
OAK6:00 amOakland
32h 15m
2 stops
OPO10:15 pmPorto
Aug 8
OPO5:00 amPorto
19h 14m
2 stops
OAK4:14 pmOakland
$2,333

British Airways flights from Oakland, California to Porto

Our best British Airways deals on Oakland, California to Porto flight tickets
British Airways
Aug 11
OAK10:22 amOakland
25h 08m
2 stops
OPO7:30 pmPorto
Aug 17
OPO11:45 amPorto
39h 48m
2 stops
OAK7:33 pmOakland
$1,244
British Airways
Aug 9
OAK10:20 amOakland
38h 30m
2 stops
OPO8:50 amPorto
Aug 18
OPO8:55 pmPorto
30h 00m
2 stops
OAK6:55 pmOakland
$1,347

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 July 7, 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

Sun 8/16

6:00 am-3:30 pm

2 stops25h 30m

Porto

Mon 8/24

11:25 am-11:56 pm

2 stops44h 31m

$850

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Sat 8/15

5:00 pm-3:30 pm

2 stops38h 30m

Porto

Mon 8/24

11:25 am-4:14 pm

2 stops36h 49m

$856

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Sun 9/13

12:39 pm-10:40 am

2 stops38h 01m

Porto

Fri 9/25

5:00 am-11:59 pm

2 stops26h 59m

$920

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Mon 8/10

6:00 am-3:25 pm

2 stops25h 25m

Porto

Tue 8/18

12:25 pm-11:56 pm

2 stops43h 31m

$939
Quickest round-trip

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Sat 9/12

6:00 am-10:20 am

2 stops20h 20m

Porto

Thu 9/24

5:00 am-11:59 pm

2 stops26h 59m

$986

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Sat 8/15

6:00 am-10:00 pm

2 stops32h 00m

Porto

Fri 8/21

4:25 pm-10:38 pm

2 stops38h 13m

$990

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Sun 8/16

6:00 am-10:00 pm

2 stops32h 00m

Porto

Sun 8/23

11:45 am-4:14 pm

2 stops36h 29m

$1,029

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Sat 8/15

5:00 pm-10:00 pm

2 stops45h 00m

Porto

Sun 8/23

11:45 am-4:14 pm

2 stops36h 29m

$1,035

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Sun 7/19

6:00 am-10:00 pm

2 stops32h 00m

Porto

Wed 8/5

5:55 am-4:14 pm

2 stops18h 19m

$1,064

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Wed 7/22

6:00 am-10:15 pm

2 stops32h 15m

Porto

Wed 8/5

5:55 am-4:14 pm

2 stops18h 19m

$1,069

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 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 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 43% of people opting to fly with this airline when traveling to Porto. Keep in mind that there are 9 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

18h 51m

Direct flights

None
The fastest flight from Oakland, California to Porto takes 18h 51m
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 18h 51m.

  • 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
Esposende
Lamego
Chaves
Pinhao
Arcos de Valdevez
Guimarães
Espinho
Ponte de Lima
Viseu
Curia
Mesao Frio
Penafiel
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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