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Cheap flights from Oakland, California to Porto from $462

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 10/13. 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
5:03 pm - 10:15 pm
OAK
-
OPO
21h 12m
2 stops
Delta Logo
12:25 pm - 11:50 pm
OPO
-
OAK
19h 25m
2 stops
$1,054Delta
Tue, Jun 30 - Tue, Jul 7
Delta Logo
6:00 am - 9:50 pm
OAK
-
OPO
31h 50m
2 stops
Delta Logo
6:30 am - 11:51 pm
OPO
-
OAK
25h 21m
2 stops
$1,081Delta
Thu, Aug 13 - Sun, Aug 16
Delta Logo
6:00 am - 6:15 pm
OAK
-
OPO
28h 15m
2 stops
Delta Logo
4:20 pm - 11:51 pm
OPO
-
OAK
39h 31m
2 stops
$1,090Delta
Thu, Aug 13 - Mon, Aug 17
Multiple Airlines Logo
6:00 am - 3:30 pm
OAK
-
OPO
25h 30m
2 stops
Multiple Airlines Logo
4:20 pm - 4:14 pm
OPO
-
OAK
31h 54m
2 stops
$1,095Multiple Airlines
Fri, Aug 14 - Mon, Aug 17
Delta Logo
6:00 am - 3:25 pm
OAK
-
OPO
25h 25m
2 stops
Delta Logo
9:25 am - 4:14 pm
OPO
-
OAK
38h 49m
2 stops
$1,138Delta
Fri, Aug 14 - Mon, Aug 17
Delta Logo
5:03 pm - 6:10 pm
OAK
-
OPO
17h 07m
2 stops
Delta Logo
12:15 pm - 11:51 pm
OPO
-
OAK
43h 36m
2 stops
$1,139Delta
Mon, Jun 29 - Mon, Aug 3
Delta Logo
6:00 am - 10:15 pm
OAK
-
OPO
32h 15m
2 stops
Delta Logo
12:15 pm - 11:51 pm
OPO
-
OAK
43h 36m
2 stops
$1,145Delta
Sun, Jun 28 - Mon, Aug 3
Delta Logo
5:03 pm - 10:15 pm
OAK
-
OPO
21h 12m
2 stops
Delta Logo
5:00 am - 11:54 pm
OPO
-
OAK
26h 54m
2 stops
$1,174Delta
Mon, Jun 8 - Wed, Jun 17
Delta Logo
6:00 am - 10:00 pm
OAK
-
OPO
32h 00m
2 stops
Delta Logo
5:55 am - 4:23 pm
OPO
-
OAK
18h 28m
2 stops
$1,177Delta
Sun, May 31 - Thu, Jun 11
Delta Logo
5:55 pm - 10:00 pm
OAK
-
OPO
44h 05m
2 stops
Delta Logo
5:55 am - 4:23 pm
OPO
-
OAK
18h 28m
2 stops
$1,183Delta
Sat, May 30 - Thu, Jun 11

Delta flights from Oakland, California to Porto

Our best Delta deals on Oakland, California to Porto flight tickets
Delta
Jun 30
OAK5:03 pmOakland
21h 12m
2 stops
OPO10:15 pmPorto
Jul 7
OPO12:25 pmPorto
19h 25m
2 stops
OAK11:50 pmOakland
$1,054
Delta
Aug 13
OAK6:00 amOakland
31h 50m
2 stops
OPO9:50 pmPorto
Aug 16
OPO6:30 amPorto
25h 21m
2 stops
OAK11:51 pmOakland
$1,081
Delta
Aug 13
OAK6:00 amOakland
28h 15m
2 stops
OPO6:15 pmPorto
Aug 17
OPO4:20 pmPorto
39h 31m
2 stops
OAK11:51 pmOakland
$1,090

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 May 20, 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
Quickest round-trip

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Tue 6/30

5:03 pm-10:15 pm

2 stops21h 12m

Porto

Tue 7/7

12:25 pm-11:50 pm

2 stops19h 25m

$1,054

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Thu 8/13

6:00 am-9:50 pm

2 stops31h 50m

Porto

Sun 8/16

6:30 am-11:51 pm

2 stops25h 21m

$1,081

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Thu 8/13

6:00 am-6:15 pm

2 stops28h 15m

Porto

Mon 8/17

4:20 pm-11:51 pm

2 stops39h 31m

$1,090

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Fri 8/14

6:00 am-3:30 pm

2 stops25h 30m

Porto

Mon 8/17

4:20 pm-4:14 pm

2 stops31h 54m

$1,095

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Fri 8/14

6:00 am-3:25 pm

2 stops25h 25m

Porto

Mon 8/17

9:25 am-4:14 pm

2 stops38h 49m

$1,138

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Mon 6/29

5:03 pm-6:10 pm

2 stops17h 07m

Porto

Mon 8/3

12:15 pm-11:51 pm

2 stops43h 36m

$1,139

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Sun 6/28

6:00 am-10:15 pm

2 stops32h 15m

Porto

Mon 8/3

12:15 pm-11:51 pm

2 stops43h 36m

$1,145

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Mon 6/8

5:03 pm-10:15 pm

2 stops21h 12m

Porto

Wed 6/17

5:00 am-11:54 pm

2 stops26h 54m

$1,174

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Sun 5/31

6:00 am-10:00 pm

2 stops32h 00m

Porto

Thu 6/11

5:55 am-4:23 pm

2 stops18h 28m

$1,177

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Sat 5/30

5:55 pm-10:00 pm

2 stops44h 05m

Porto

Thu 6/11

5:55 am-4:23 pm

2 stops18h 28m

$1,183

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 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 and KLM are the most popular carriers 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 44% 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

20h 30m

Direct flights

None
The fastest flight from Oakland, California to Porto takes 20h 30m
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 20h 30m.

  • 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
Espinho
Guimarães
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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