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Cheap flights from Oakland, California to Porto from $873

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 5/11. 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 - 10:00 pm
OAK
-
OPO
32h 00m
2 stops
Delta Logo
11:30 am - 4:25 pm
OPO
-
OAK
36h 55m
2 stops
$1,124Delta
Sun, May 17 - Tue, May 26
Delta Logo
5:55 pm - 10:00 pm
OAK
-
OPO
44h 05m
2 stops
Delta Logo
11:45 am - 4:25 pm
OPO
-
OAK
36h 40m
2 stops
$1,131Delta
Sat, May 16 - Wed, May 27
Delta Logo
6:00 am - 10:00 pm
OAK
-
OPO
32h 00m
2 stops
Delta Logo
4:20 pm - 11:57 pm
OPO
-
OAK
39h 37m
2 stops
$1,144Delta
Sun, May 17 - Mon, Jun 1
Delta Logo
5:55 pm - 10:00 pm
OAK
-
OPO
44h 05m
2 stops
Delta Logo
4:20 pm - 11:57 pm
OPO
-
OAK
39h 37m
2 stops
$1,151Delta
Sat, May 16 - Mon, Jun 1
Delta Logo
6:00 am - 10:00 pm
OAK
-
OPO
32h 00m
2 stops
Delta Logo
11:45 am - 11:57 pm
OPO
-
OAK
44h 12m
2 stops
$1,194Delta
Sun, May 17 - Sun, May 31
Delta Logo
5:55 pm - 10:00 pm
OAK
-
OPO
44h 05m
2 stops
Delta Logo
11:45 am - 11:57 pm
OPO
-
OAK
44h 12m
2 stops
$1,201Delta
Sat, May 16 - Sun, May 31
Delta Logo
6:00 am - 10:05 pm
OAK
-
OPO
32h 05m
2 stops
Delta Logo
5:00 am - 4:25 pm
OPO
-
OAK
19h 25m
2 stops
$1,226Delta
Tue, May 19 - Tue, May 26
Delta Logo
6:00 am - 10:05 pm
OAK
-
OPO
32h 05m
2 stops
Delta Logo
4:20 pm - 11:57 pm
OPO
-
OAK
39h 37m
2 stops
$1,246Delta
Tue, May 19 - Mon, Jun 1
Delta Logo
6:00 am - 10:05 pm
OAK
-
OPO
32h 05m
2 stops
Delta Logo
11:45 am - 11:57 pm
OPO
-
OAK
44h 12m
2 stops
$1,296Delta
Tue, May 19 - Sun, May 31
British Airways Logo
7:00 am - 8:05 pm
OAK
-
OPO
29h 05m
2 stops
British Airways Logo
9:25 pm - 11:59 pm
OPO
-
OAK
34h 34m
2 stops
$1,308British Airways
Mon, May 18 - Mon, Jun 1

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Delta flights from Oakland, California to Porto

Our best Delta deals on Oakland, California to Porto flight tickets
Delta
May 17
OAK6:00 amOakland
32h 00m
2 stops
OPO10:00 pmPorto
May 26
OPO11:30 amPorto
36h 55m
2 stops
OAK4:25 pmOakland
$1,124
Delta
May 16
OAK5:55 pmOakland
44h 05m
2 stops
OPO10:00 pmPorto
May 27
OPO11:45 amPorto
36h 40m
2 stops
OAK4:25 pmOakland
$1,131
Delta
May 17
OAK6:00 amOakland
32h 00m
2 stops
OPO10:00 pmPorto
Jun 1
OPO4:20 pmPorto
39h 37m
2 stops
OAK11:57 pmOakland
$1,144

British Airways flights from Oakland, California to Porto

Our best British Airways deals on Oakland, California to Porto flight tickets
British Airways
May 18
OAK7:00 amOakland
29h 05m
2 stops
OPO8:05 pmPorto
Jun 1
OPO9:25 pmPorto
34h 34m
2 stops
OAK11:59 pmOakland
$1,308
British Airways
May 20
OAK7:00 amOakland
43h 25m
2 stops
OPO10:25 amPorto
Jun 1
OPO9:25 pmPorto
34h 34m
2 stops
OAK11:59 pmOakland
$1,458
British Airways
May 18
OAK7:00 amOakland
29h 05m
2 stops
OPO8:05 pmPorto
May 29
OPO11:15 amPorto
44h 44m
2 stops
OAK11:59 pmOakland
$1,580

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 16, 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 5/17

6:00 am-10:00 pm

2 stops32h 00m

Porto

Tue 5/26

11:30 am-4:25 pm

2 stops36h 55m

$1,124

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Sat 5/16

5:55 pm-10:00 pm

2 stops44h 05m

Porto

Wed 5/27

11:45 am-4:25 pm

2 stops36h 40m

$1,131

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Sun 5/17

6:00 am-10:00 pm

2 stops32h 00m

Porto

Mon 6/1

4:20 pm-11:57 pm

2 stops39h 37m

$1,144

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Sat 5/16

5:55 pm-10:00 pm

2 stops44h 05m

Porto

Mon 6/1

4:20 pm-11:57 pm

2 stops39h 37m

$1,151

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Sun 5/17

6:00 am-10:00 pm

2 stops32h 00m

Porto

Sun 5/31

11:45 am-11:57 pm

2 stops44h 12m

$1,194

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Sat 5/16

5:55 pm-10:00 pm

2 stops44h 05m

Porto

Sun 5/31

11:45 am-11:57 pm

2 stops44h 12m

$1,201
Quickest round-trip

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Tue 5/19

6:00 am-10:05 pm

2 stops32h 05m

Porto

Tue 5/26

5:00 am-4:25 pm

2 stops19h 25m

$1,226

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Tue 5/19

6:00 am-10:05 pm

2 stops32h 05m

Porto

Mon 6/1

4:20 pm-11:57 pm

2 stops39h 37m

$1,246

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Tue 5/19

6:00 am-10:05 pm

2 stops32h 05m

Porto

Sun 5/31

11:45 am-11:57 pm

2 stops44h 12m

$1,296

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Mon 5/18

7:00 am-8:05 pm

2 stops29h 05m

Porto

Mon 6/1

9:25 pm-11:59 pm

2 stops34h 34m

$1,308

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?

Delta is the most popular carrier 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 43% 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

21h 47m

Direct flights

None
The fastest flight from Oakland, California to Porto takes 21h 47m
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 21h 47m.

  • 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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