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Cheap flights from Oakland, California to Porto from $400

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 5/27. 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.
British Airways Logo
2:14 pm - 8:30 pm
OAK
-
OPO
22h 16m
2 stops
British Airways Logo
7:55 pm - 9:26 pm
OPO
-
OAK
33h 31m
2 stops
$1,486British Airways
Thu, Sep 17 - Sat, Sep 26
British Airways Logo
1:01 pm - 10:25 am
OAK
-
OPO
37h 24m
2 stops
British Airways Logo
11:15 am - 7:46 pm
OPO
-
OAK
40h 31m
2 stops
$1,573British Airways
Wed, Jun 3 - Fri, Jun 12
Multiple Airlines Logo
6:22 am - 7:05 pm
OAK
-
OPO
28h 43m
2 stops
Multiple Airlines Logo
7:55 pm - 9:26 am
OPO
-
OAK
45h 31m
2 stops
$1,628Multiple Airlines
Fri, Jun 12 - Sat, Jun 27
British Airways Logo
10:05 am - 8:40 pm
OAK
-
OPO
26h 35m
2 stops
British Airways Logo
9:30 pm - 10:54 pm
OPO
-
OAK
33h 24m
2 stops
$1,663British Airways
Sat, Sep 5 - Sun, Sep 20
Multiple Airlines Logo
6:22 am - 7:05 pm
OAK
-
OPO
28h 43m
2 stops
Multiple Airlines Logo
9:30 pm - 9:26 am
OPO
-
OAK
43h 56m
2 stops
$1,683Multiple Airlines
Fri, Jun 12 - Sun, Jun 21
Multiple Airlines Logo
6:22 am - 11:25 pm
OAK
-
OPO
33h 03m
2 stops
Multiple Airlines Logo
12:10 pm - 9:26 am
OPO
-
OAK
53h 16m
2 stops
$1,720Multiple Airlines
Sun, Jun 14 - Sun, Jun 21
British Airways Logo
10:05 am - 7:05 pm
OAK
-
OPO
25h 00m
2 stops
British Airways Logo
7:55 pm - 6:55 pm
OPO
-
OAK
31h 00m
2 stops
$1,754British Airways
Fri, Sep 4 - Sat, Sep 19
Multiple Airlines Logo
6:22 am - 9:45 am
OAK
-
OPO
43h 23m
2 stops
Multiple Airlines Logo
6:30 am - 9:26 am
OPO
-
OAK
34h 56m
2 stops
$1,795Multiple Airlines
Mon, Jun 15 - Mon, Jun 22
Multiple Airlines Logo
6:22 am - 9:45 am
OAK
-
OPO
43h 23m
2 stops
Multiple Airlines Logo
4:40 pm - 9:26 am
OPO
-
OAK
48h 46m
2 stops
$1,951Multiple Airlines
Thu, Jul 2 - Sun, Jul 19
Multiple Airlines Logo
11:30 pm - 7:20 pm
OAK
-
OPO
35h 50m
3 stops
Multiple Airlines Logo
8:10 pm - 9:44 pm
OPO
-
OAK
33h 34m
2 stops
$2,097Multiple Airlines
Mon, Jun 15 - Mon, Jun 22

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British Airways flights from Oakland, California to Porto

Our best British Airways deals on Oakland, California to Porto flight tickets
British Airways
Sep 17
OAK2:14 pmOakland
22h 16m
2 stops
OPO8:30 pmPorto
Sep 26
OPO7:55 pmPorto
33h 31m
2 stops
OAK9:26 pmOakland
$1,486
British Airways
Jun 3
OAK1:01 pmOakland
37h 24m
2 stops
OPO10:25 amPorto
Jun 12
OPO11:15 amPorto
40h 31m
2 stops
OAK7:46 pmOakland
$1,573
British Airways
Sep 5
OAK10:05 amOakland
26h 35m
2 stops
OPO8:40 pmPorto
Sep 20
OPO9:30 pmPorto
33h 24m
2 stops
OAK10:54 pmOakland
$1,663

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 3, 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

Thu 9/17

2:14 pm-8:30 pm

2 stops22h 16m

Porto

Sat 9/26

7:55 pm-9:26 pm

2 stops33h 31m

$1,486

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Wed 6/3

1:01 pm-10:25 am

2 stops37h 24m

Porto

Fri 6/12

11:15 am-7:46 pm

2 stops40h 31m

$1,573

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Fri 6/12

6:22 am-7:05 pm

2 stops28h 43m

Porto

Sat 6/27

7:55 pm-9:26 am

2 stops45h 31m

$1,628

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Sat 9/5

10:05 am-8:40 pm

2 stops26h 35m

Porto

Sun 9/20

9:30 pm-10:54 pm

2 stops33h 24m

$1,663

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Fri 6/12

6:22 am-7:05 pm

2 stops28h 43m

Porto

Sun 6/21

9:30 pm-9:26 am

2 stops43h 56m

$1,683

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Sun 6/14

6:22 am-11:25 pm

2 stops33h 03m

Porto

Sun 6/21

12:10 pm-9:26 am

2 stops53h 16m

$1,720

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Fri 9/4

10:05 am-7:05 pm

2 stops25h 00m

Porto

Sat 9/19

7:55 pm-6:55 pm

2 stops31h 00m

$1,754

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Mon 6/15

6:22 am-9:45 am

2 stops43h 23m

Porto

Mon 6/22

6:30 am-9:26 am

2 stops34h 56m

$1,795

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Thu 7/2

6:22 am-9:45 am

2 stops43h 23m

Porto

Sun 7/19

4:40 pm-9:26 am

2 stops48h 46m

$1,951

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Mon 6/15

11:30 pm-7:20 pm

3 stops35h 50m

Porto

Mon 6/22

8:10 pm-9:44 pm

2 stops33h 34m

$2,097

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 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 45% 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

22h 16m

Direct flights

None
The fastest flight from Oakland, California to Porto takes 22h 16m
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 22h 16m.

  • 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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