Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from Oakland, California to Porto from $443

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 9/1. 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.
Delta Logo
6:00 am - 10:05 pm
OAK
-
OPO
32h 05m
2 stops
Delta Logo
1:05 pm - 11:56 pm
OPO
-
OAK
42h 51m
2 stops
$874Delta
Tue, Sep 22 - Tue, Oct 6
Delta Logo
5:55 am - 10:00 pm
OAK
-
OPO
32h 05m
2 stops
Delta Logo
5:00 am - 11:56 pm
OPO
-
OAK
26h 56m
2 stops
$898Delta
Thu, Dec 24 - Thu, Jan 7
Delta Logo
1:15 pm - 10:00 pm
OAK
-
OPO
48h 45m
2 stops
Delta Logo
5:00 am - 11:56 pm
OPO
-
OAK
26h 56m
2 stops
$905Delta
Wed, Dec 23 - Thu, Jan 7
Delta Logo
5:00 pm - 10:00 pm
OAK
-
OPO
45h 00m
2 stops
Delta Logo
1:05 pm - 11:56 pm
OPO
-
OAK
42h 51m
2 stops
$940Delta
Wed, Sep 23 - Tue, Oct 6
Delta Logo
6:00 am - 10:05 pm
OAK
-
OPO
32h 05m
2 stops
Delta Logo
4:25 pm - 4:23 pm
OPO
-
OAK
31h 58m
2 stops
$995Delta
Tue, Sep 22 - Thu, Oct 8
Delta Logo
6:00 am - 3:25 pm
OAK
-
OPO
25h 25m
2 stops
Delta Logo
5:00 am - 11:56 pm
OPO
-
OAK
26h 56m
2 stops
$1,170Delta
Tue, Sep 22 - Wed, Oct 7
Delta Logo
5:00 pm - 10:15 pm
OAK
-
OPO
21h 15m
2 stops
Delta Logo
5:55 am - 11:56 pm
OPO
-
OAK
26h 01m
2 stops
$1,380Delta
Fri, Aug 7 - Thu, Aug 13
Multiple Airlines Logo
2:55 pm - 3:40 pm
OAK
-
OPO
40h 45m
2 stops
Multiple Airlines Logo
4:35 pm - 10:54 pm
OPO
-
OAK
38h 19m
2 stops
$1,381Multiple Airlines
Sat, Aug 15 - Sat, Aug 22
Delta Logo
6:00 am - 3:25 pm
OAK
-
OPO
25h 25m
2 stops
Delta Logo
5:00 am - 11:56 pm
OPO
-
OAK
26h 56m
2 stops
$1,438Delta
Wed, Sep 23 - Wed, Oct 7
Delta Logo
6:00 am - 3:25 pm
OAK
-
OPO
25h 25m
2 stops
Delta Logo
5:00 am - 11:56 pm
OPO
-
OAK
26h 56m
2 stops
$1,537Delta
Thu, Sep 24 - Tue, Oct 6

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Delta flights from Oakland, California to Porto

Our best Delta deals on Oakland, California to Porto flight tickets
Delta
Sep 22
OAK6:00 amOakland
32h 05m
2 stops
OPO10:05 pmPorto
Oct 6
OPO1:05 pmPorto
42h 51m
2 stops
OAK11:56 pmOakland
$874
Delta
Dec 24
OAK5:55 amOakland
32h 05m
2 stops
OPO10:00 pmPorto
Jan 7
OPO5:00 amPorto
26h 56m
2 stops
OAK11:56 pmOakland
$898
Delta
Dec 23
OAK1:15 pmOakland
48h 45m
2 stops
OPO10:00 pmPorto
Jan 7
OPO5:00 amPorto
26h 56m
2 stops
OAK11:56 pmOakland
$905

British Airways flights from Oakland, California to Porto

Our best British Airways deals on Oakland, California to Porto flight tickets
British Airways
Aug 2
OAK10:20 amOakland
38h 30m
2 stops
OPO8:50 amPorto
Aug 9
OPO9:30 pmPorto
30h 03m
2 stops
OAK7:33 pmOakland
$1,697
British Airways
Aug 4
OAK2:55 pmOakland
44h 10m
2 stops
OPO7:05 pmPorto
Aug 9
OPO9:30 pmPorto
30h 03m
2 stops
OAK7:33 pmOakland
$1,705
British Airways
Jul 31
OAK2:55 pmOakland
45h 45m
2 stops
OPO8:40 pmPorto
Aug 9
OPO9:30 pmPorto
30h 03m
2 stops
OAK7:33 pmOakland
$1,848

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 July 12, 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

Tue 9/22

6:00 am-10:05 pm

2 stops32h 05m

Porto

Tue 10/6

1:05 pm-11:56 pm

2 stops42h 51m

$874

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Thu 12/24

5:55 am-10:00 pm

2 stops32h 05m

Porto

Thu 1/7

5:00 am-11:56 pm

2 stops26h 56m

$898

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Wed 12/23

1:15 pm-10:00 pm

2 stops48h 45m

Porto

Thu 1/7

5:00 am-11:56 pm

2 stops26h 56m

$905

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Wed 9/23

5:00 pm-10:00 pm

2 stops45h 00m

Porto

Tue 10/6

1:05 pm-11:56 pm

2 stops42h 51m

$940

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Tue 9/22

6:00 am-10:05 pm

2 stops32h 05m

Porto

Thu 10/8

4:25 pm-4:23 pm

2 stops31h 58m

$995

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Tue 9/22

6:00 am-3:25 pm

2 stops25h 25m

Porto

Wed 10/7

5:00 am-11:56 pm

2 stops26h 56m

$1,170
Quickest round-trip

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Fri 8/7

5:00 pm-10:15 pm

2 stops21h 15m

Porto

Thu 8/13

5:55 am-11:56 pm

2 stops26h 01m

$1,380

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Sat 8/15

2:55 pm-3:40 pm

2 stops40h 45m

Porto

Sat 8/22

4:35 pm-10:54 pm

2 stops38h 19m

$1,381

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Wed 9/23

6:00 am-3:25 pm

2 stops25h 25m

Porto

Wed 10/7

5:00 am-11:56 pm

2 stops26h 56m

$1,438

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Thu 9/24

6:00 am-3:25 pm

2 stops25h 25m

Porto

Tue 10/6

5:00 am-11:56 pm

2 stops26h 56m

$1,537

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first
1
2

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 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

Fastest flight time

20h 20m

Direct flights

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

  • 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
Arcos de Valdevez
Guimarães
Viseu
Espinho
Ponte de Lima
Mesao Frio
Penafiel
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.

An easier way to manage your Porto trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Tue 8/11
Tue 8/18
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Portugal