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Cheap flights from Oakland, California to Porto from $858

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 8/22. 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

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
6:01 am - 8:05 pmOAK  Oakland-OPO Porto
30h 04m2 stops Seattle/Tacoma Intl London Heathrow
British Airways Logo
9:25 pm - 6:55 pmOPO  Porto-OAK Oakland
29h 30m2 stops London Gatwick Seattle/Tacoma Intl
$1,223British Airways
Mon, Sep 21 - Mon, Sep 28
Multiple Airlines Logo
7:51 pm - 3:45 pmOAK  Oakland-OPO Porto
35h 54m2 stops Seattle/Tacoma Intl Frankfurt am Main
Multiple Airlines Logo
4:35 pm - 10:54 pmOPO  Porto-OAK Oakland
38h 19m2 stops Frankfurt am Main Seattle/Tacoma Intl
$1,603Multiple Airlines
Wed, Sep 16 - Sat, Sep 26
Delta Logo
12:41 pm - 3:30 pmOAK  Oakland-OPO Porto
18h 49m2 stops Salt Lake City Amsterdam Schiphol
Delta Logo
5:55 am - 4:22 pmOPO  Porto-OAK Oakland
18h 27m2 stops Paris Charles de Gaulle Salt Lake City
$1,843Delta
Thu, Oct 15 - Thu, Oct 22
Delta Logo
12:39 pm - 3:30 pmOAK  Oakland-OPO Porto
18h 51m2 stops Salt Lake City Amsterdam Schiphol
Delta Logo
5:55 am - 4:20 pmOPO  Porto-OAK Oakland
18h 25m2 stops Paris Charles de Gaulle Salt Lake City
$2,624Delta
Sat, Sep 12 - Wed, Sep 16
Delta Logo
12:39 pm - 3:30 pmOAK  Oakland-OPO Porto
18h 51m2 stops Salt Lake City Amsterdam Schiphol
Delta Logo
5:00 am - 4:20 pmOPO  Porto-OAK Oakland
19h 20m2 stops Amsterdam Schiphol Salt Lake City
$3,219Delta
Wed, Sep 23 - Tue, Sep 29
Multiple Airlines Logo
2:15 pm - 10:55 pmOAK  Oakland-OPO Porto
24h 40m3 stops Seattle/Tacoma Intl Reykjavik Keflavik Intl Frankfurt am Main
Multiple Airlines Logo
4:40 pm - 6:34 pmOPO  Porto-OAK Oakland
33h 54m3 stops Istanbul Mexico City Benito Juarez Guadalajara Miguel Hidal
$3,725Multiple Airlines
Wed, Sep 16 - Sat, Sep 26
Delta Logo
6:00 am - 10:30 amOAK  Oakland-OPO Porto
20h 30m2 stops Salt Lake City New York John F Kennedy Intl
Delta Logo
9:15 am - 11:56 pmOPO  Porto-OAK Oakland
21h 41m2 stops New York John F Kennedy Intl Salt Lake City
$11,904Delta
Fri, Oct 23 - Thu, Oct 29

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Delta flights from Oakland, California to Porto

Our best Delta deals on Oakland, California to Porto flight tickets
Delta
Oct 15
OAK12:41 pmOakland
18h 49m
2 stops
OPO3:30 pmPorto
Oct 22
OPO5:55 amPorto
18h 27m
2 stops
OAK4:22 pmOakland
$1,843
Delta
Sep 12
OAK12:39 pmOakland
18h 51m
2 stops
OPO3:30 pmPorto
Sep 16
OPO5:55 amPorto
18h 25m
2 stops
OAK4:20 pmOakland
$2,624
Delta
Sep 23
OAK12:39 pmOakland
18h 51m
2 stops
OPO3:30 pmPorto
Sep 29
OPO5:00 amPorto
19h 20m
2 stops
OAK4:20 pmOakland
$3,219

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 August 18, 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 Oakland - OPO Porto

OAKOPO

Oakland

Mon 9/21

6:01 am-8:05 pm

2 stops30h 04m

Porto

Mon 9/28

9:25 pm-6:55 pm

2 stops29h 30m

$1,223

OaklandPorto

OAK Oakland - OPO Porto

OAKOPO

Oakland

Wed 9/16

7:51 pm-3:45 pm

2 stops35h 54m

Porto

Sat 9/26

4:35 pm-10:54 pm

2 stops38h 19m

$1,603
Quickest round-trip

OaklandPorto

OAK Oakland - OPO Porto

OAKOPO

Oakland

Thu 10/15

12:41 pm-3:30 pm

2 stops18h 49m

Porto

Thu 10/22

5:55 am-4:22 pm

2 stops18h 27m

$1,843

OaklandPorto

OAK Oakland - OPO Porto

OAKOPO

Oakland

Sat 9/12

12:39 pm-3:30 pm

2 stops18h 51m

Porto

Wed 9/16

5:55 am-4:20 pm

2 stops18h 25m

$2,624

OaklandPorto

OAK Oakland - OPO Porto

OAKOPO

Oakland

Wed 9/23

12:39 pm-3:30 pm

2 stops18h 51m

Porto

Tue 9/29

5:00 am-4:20 pm

2 stops19h 20m

$3,219

OaklandPorto

OAK Oakland - OPO Porto

OAKOPO

Oakland

Wed 9/16

2:15 pm-10:55 pm

3 stops24h 40m

Porto

Sat 9/26

4:40 pm-6:34 pm

3 stops33h 54m

$3,725

OaklandPorto

OAK Oakland - OPO Porto

OAKOPO

Oakland

Fri 10/23

6:00 am-10:30 am

2 stops20h 30m

Porto

Thu 10/29

9:15 am-11:56 pm

2 stops21h 41m

$11,904
Cheapest one-way

OaklandPorto

OAK Oakland - OPO Porto

OAKOPO

Oakland

Sat 8/22

2:11 pm-10:45 pm

2 stops24h 34m

$858

OaklandPorto

OAK Oakland - OPO Porto

OAKOPO

Oakland

Thu 8/27

10:07 am-8:30 pm

2 stops26h 23m

$922

OaklandPorto

OAK Oakland - OPO Porto

OAKOPO

Oakland

Thu 8/27

11:30 pm-7:20 pm

3 stops35h 50m

$1,337

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 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 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 42% 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

Best Price Found

$858

Fastest flight time

25h 25m

Direct flights

None
The best one-way flight to Porto from Oakland, California in the past 72 hours is $858. The best round-trip flight deal from Oakland, California to Porto found on momondo in the last 72 hours is $1,223.
The fastest flight from Oakland, California to Porto takes 25h 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

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 25h 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
Pinhao
Matosinhos
Esposende
Chaves
Arcos de Valdevez
Viseu
Espinho
Guimarães
Lamego
Ponte de Lima
Mesao Frio
Penafiel
Caminha
Baiao
Mira

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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