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Cheap flights from Oakland, California to Porto from $1,108

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 2/10. 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.
KLM Logo
5:55 am - 10:30 am
OAK
-
OPO
44h 35m2 stops
KLM Logo
11:15 am - 4:12 pm
OPO
-
OAK
36h 57m2 stops
$1,108KLM
Tue, Feb 10 - Tue, Feb 17
Delta Logo
1:15 pm - 10:15 pm
OAK
-
OPO
25h 00m2 stops
Delta Logo
5:00 am - 11:49 pm
OPO
-
OAK
26h 49m2 stops
$1,846Delta
Fri, Jun 5 - Mon, Jun 15
Delta Logo
1:15 pm - 10:15 pm
OAK
-
OPO
25h 00m2 stops
Delta Logo
11:45 am - 11:49 pm
OPO
-
OAK
44h 04m2 stops
$1,966Delta
Fri, Jun 5 - Sun, Jun 14
Delta Logo
5:55 am - 10:30 am
OAK
-
OPO
20h 35m2 stops
Delta Logo
5:00 am - 11:49 pm
OPO
-
OAK
26h 49m2 stops
$2,641Delta
Thu, Jun 4 - Mon, Jun 15
Delta Logo
5:55 am - 10:30 am
OAK
-
OPO
20h 35m2 stops
Delta Logo
5:00 am - 11:49 pm
OPO
-
OAK
26h 49m2 stops
$2,762Delta
Thu, Jun 4 - Sun, Jun 14
Delta Logo
1:15 pm - 6:10 pm
OAK
-
OPO
20h 55m2 stops
Delta Logo
5:00 am - 11:49 pm
OPO
-
OAK
26h 49m2 stops
$2,799Delta
Fri, Jun 26 - Wed, Jul 15
Delta Logo
1:15 pm - 6:10 pm
OAK
-
OPO
20h 55m2 stops
Delta Logo
6:15 am - 4:31 pm
OPO
-
OAK
18h 16m2 stops
$2,805Delta
Fri, Jun 26 - Tue, Jul 14
Delta Logo
5:05 pm - 6:10 pm
OAK
-
OPO
17h 05m2 stops
Delta Logo
12:25 pm - 11:49 pm
OPO
-
OAK
19h 24m2 stops
$2,810Delta
Fri, Jun 26 - Thu, Jul 9
Delta Logo
1:15 pm - 6:10 pm
OAK
-
OPO
20h 55m2 stops
Delta Logo
4:20 pm - 11:49 pm
OPO
-
OAK
39h 29m2 stops
$2,818Delta
Fri, Jun 26 - Mon, Jul 13
Delta Logo
1:15 pm - 6:10 pm
OAK
-
OPO
20h 55m2 stops
Delta Logo
11:45 am - 4:31 pm
OPO
-
OAK
36h 46m2 stops
$2,868Delta
Fri, Jun 26 - Sat, Jul 11

Delta flights from Oakland, California to Porto

Our best Delta deals on Oakland, California to Porto flight tickets
Delta
Jun 5
OAK1:15 pmOakland
25h 00m
2 stops
OPO10:15 pmPorto
Jun 15
OPO5:00 amPorto
26h 49m
2 stops
OAK11:49 pmOakland
$1,846
Find similar
Delta
Jun 5
OAK1:15 pmOakland
25h 00m
2 stops
OPO10:15 pmPorto
Jun 14
OPO11:45 amPorto
44h 04m
2 stops
OAK11:49 pmOakland
$1,966
Find similar
Delta
Jun 4
OAK5:55 amOakland
20h 35m
2 stops
OPO10:30 amPorto
Jun 15
OPO5:00 amPorto
26h 49m
2 stops
OAK11:49 pmOakland
$2,641
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 December 28, 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 2/10

5:55 am-10:30 am

2 stops44h 35m

Porto

Tue 2/17

11:15 am-4:12 pm

2 stops36h 57m

$1,108

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Fri 6/5

1:15 pm-10:15 pm

2 stops25h 00m

Porto

Mon 6/15

5:00 am-11:49 pm

2 stops26h 49m

$1,846

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Fri 6/5

1:15 pm-10:15 pm

2 stops25h 00m

Porto

Sun 6/14

11:45 am-11:49 pm

2 stops44h 04m

$1,966

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Thu 6/4

5:55 am-10:30 am

2 stops20h 35m

Porto

Mon 6/15

5:00 am-11:49 pm

2 stops26h 49m

$2,641

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Thu 6/4

5:55 am-10:30 am

2 stops20h 35m

Porto

Sun 6/14

5:00 am-11:49 pm

2 stops26h 49m

$2,762

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Fri 6/26

1:15 pm-6:10 pm

2 stops20h 55m

Porto

Wed 7/15

5:00 am-11:49 pm

2 stops26h 49m

$2,799

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Fri 6/26

1:15 pm-6:10 pm

2 stops20h 55m

Porto

Tue 7/14

6:15 am-4:31 pm

2 stops18h 16m

$2,805

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Fri 6/26

5:05 pm-6:10 pm

2 stops17h 05m

Porto

Thu 7/9

12:25 pm-11:49 pm

2 stops19h 24m

$2,810

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Fri 6/26

1:15 pm-6:10 pm

2 stops20h 55m

Porto

Mon 7/13

4:20 pm-11:49 pm

2 stops39h 29m

$2,818

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Fri 6/26

1:15 pm-6:10 pm

2 stops20h 55m

Porto

Sat 7/11

11:45 am-4:31 pm

2 stops36h 46m

$2,868

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.

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

32h 25m

Direct flights

None
The fastest flight from Oakland, California to Porto takes 32h 25m
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 32h 25m.

  • 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
Guimarães
Esposende
Lamego
Chaves
Viseu
Espinho
Arcos de Valdevez
Pinhao
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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