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Cheap flights from Oakland, California to Porto from $544

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 9/15. 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

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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.
Multiple Airlines Logo
5:55 am - 10:00 pm
OAK
-
OPO
32h 05m
2 stops
Multiple Airlines Logo
11:30 am - 4:25 pm
OPO
-
OAK
36h 55m
2 stops
$784Multiple Airlines
Mon, May 4 - Tue, May 12
KLM Logo
5:05 pm - 10:15 pm
OAK
-
OPO
21h 10m
2 stops
KLM Logo
7:00 pm - 11:57 pm
OPO
-
OAK
36h 57m
2 stops
$949KLM
Fri, May 8 - Sat, May 16
British Airways Logo
1:01 pm - 8:20 pm
OAK
-
OPO
47h 19m
2 stops
British Airways Logo
9:25 pm - 11:59 pm
OPO
-
OAK
34h 34m
2 stops
$1,334British Airways
Sat, May 30 - Sun, Jun 7
British Airways Logo
1:01 pm - 8:20 pm
OAK
-
OPO
47h 19m
2 stops
British Airways Logo
9:25 pm - 11:59 pm
OPO
-
OAK
34h 34m
2 stops
$1,389British Airways
Sat, May 30 - Sun, Jun 7
British Airways Logo
1:01 pm - 8:35 pm
OAK
-
OPO
47h 34m
2 stops
British Airways Logo
9:25 pm - 11:59 pm
OPO
-
OAK
34h 34m
2 stops
$1,436British Airways
Sat, May 16 - Sun, May 31
Multiple Airlines Logo
11:15 pm - 3:15 pm
OAK
-
OPO
32h 00m
3 stops
Multiple Airlines Logo
10:25 pm - 11:59 pm
OPO
-
OAK
33h 34m
3 stops
$1,830Multiple Airlines
Mon, May 4 - Tue, May 12
Multiple Airlines Logo
8:22 pm - 6:50 am
OAK
-
OPO
26h 28m
2 stops
Multiple Airlines Logo
10:25 pm - 11:59 pm
OPO
-
OAK
33h 34m
3 stops
$2,487Multiple Airlines
Mon, May 4 - Tue, May 12
Delta Logo
6:00 am - 10:30 am
OAK
-
OPO
20h 30m
2 stops
Delta Logo
12:15 pm - 11:49 pm
OPO
-
OAK
19h 34m
2 stops
$3,759Delta
Fri, Jul 31 - Mon, Aug 10
Delta Logo
6:00 am - 10:30 am
OAK
-
OPO
20h 30m
2 stops
Delta Logo
12:40 pm - 11:51 pm
OPO
-
OAK
19h 11m
2 stops
$5,422Delta
Tue, Jul 21 - Wed, Jul 29
Delta Logo
6:00 am - 10:30 am
OAK
-
OPO
20h 30m
2 stops
Delta Logo
12:40 pm - 11:51 pm
OPO
-
OAK
19h 11m
2 stops
$6,283Delta
Mon, Jul 20 - Wed, Jul 29

British Airways flights from Oakland, California to Porto

Our best British Airways deals on Oakland, California to Porto flight tickets
British Airways
May 30
OAK1:01 pmOakland
47h 19m
2 stops
OPO8:20 pmPorto
Jun 7
OPO9:25 pmPorto
34h 34m
2 stops
OAK11:59 pmOakland
$1,334
British Airways
May 30
OAK1:01 pmOakland
47h 19m
2 stops
OPO8:20 pmPorto
Jun 7
OPO9:25 pmPorto
34h 34m
2 stops
OAK11:59 pmOakland
$1,389
British Airways
May 16
OAK1:01 pmOakland
47h 34m
2 stops
OPO8:35 pmPorto
May 31
OPO9:25 pmPorto
34h 34m
2 stops
OAK11:59 pmOakland
$1,436

Delta flights from Oakland, California to Porto

Our best Delta deals on Oakland, California to Porto flight tickets
Delta
Mar 29
OAK5:55 amOakland
44h 45m
2 stops
OPO10:40 amPorto
Apr 5
OPO5:00 amPorto
19h 00m
2 stops
OAK4:00 pmOakland
$1,012
Delta
Mar 30
OAK4:49 pmOakland
45h 26m
2 stops
OPO10:15 pmPorto
Apr 5
OPO5:00 amPorto
19h 00m
2 stops
OAK4:00 pmOakland
$1,017
Delta
Mar 28
OAK5:55 pmOakland
56h 45m
2 stops
OPO9:40 amPorto
Apr 5
OPO11:45 amPorto
44h 01m
2 stops
OAK11:46 pmOakland
$1,018

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 March 26, 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

Mon 5/4

5:55 am-10:00 pm

2 stops32h 05m

Porto

Tue 5/12

11:30 am-4:25 pm

2 stops36h 55m

$784

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Fri 5/8

5:05 pm-10:15 pm

2 stops21h 10m

Porto

Sat 5/16

7:00 pm-11:57 pm

2 stops36h 57m

$949

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Sat 5/30

1:01 pm-8:20 pm

2 stops47h 19m

Porto

Sun 6/7

9:25 pm-11:59 pm

2 stops34h 34m

$1,334

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Sat 5/30

1:01 pm-8:20 pm

2 stops47h 19m

Porto

Sun 6/7

9:25 pm-11:59 pm

2 stops34h 34m

$1,389

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Sat 5/16

1:01 pm-8:35 pm

2 stops47h 34m

Porto

Sun 5/31

9:25 pm-11:59 pm

2 stops34h 34m

$1,436

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Mon 5/4

11:15 pm-3:15 pm

3 stops32h 00m

Porto

Tue 5/12

10:25 pm-11:59 pm

3 stops33h 34m

$1,830

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Mon 5/4

8:22 pm-6:50 am

2 stops26h 28m

Porto

Tue 5/12

10:25 pm-11:59 pm

3 stops33h 34m

$2,487

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Fri 7/31

6:00 am-10:30 am

2 stops20h 30m

Porto

Mon 8/10

12:15 pm-11:49 pm

2 stops19h 34m

$3,759
Quickest round-trip

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Tue 7/21

6:00 am-10:30 am

2 stops20h 30m

Porto

Wed 7/29

12:40 pm-11:51 pm

2 stops19h 11m

$5,422

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Mon 7/20

6:00 am-10:30 am

2 stops20h 30m

Porto

Wed 7/29

12:40 pm-11:51 pm

2 stops19h 11m

$6,283

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 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?

British Airways is the most popular carrier operating from Oakland to Porto

What airlines fly to Porto?

TAP AIR PORTUGAL, United Airlines and SWISS 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 40% 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

17h 07m

Direct flights

None
The fastest flight from Oakland, California to Porto takes 17h 07m
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 17h 07m.

  • 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
Braga
Matosinhos
Lamego
Esposende
Chaves
Pinhao
Guimarães
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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