Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from Oakland, California to Porto from $552

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 12/3. 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

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

Find the cheapest flights from Oakland, California to Porto

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
4:50 pm - 3:25 pmOAK-OPO
38h 35m2 stops
Delta Logo
11:15 am - 4:04 pmOPO-OAK
36h 49m2 stops
$552Delta
Find Deal
Wed, Dec 3 - Sun, Dec 7
Multiple Airlines Logo
7:00 am - 9:40 amOAK-OPO
42h 40m2 stops
Multiple Airlines Logo
4:40 pm - 11:39 pmOPO-OAK
38h 59m2 stops
$1,612Multiple Airlines
Find Deal
Sun, Apr 12 - Fri, Apr 17
Multiple Airlines Logo
11:00 am - 8:30 pmOAK-OPO
25h 30m3 stops
Multiple Airlines Logo
6:35 am - 8:43 pmOPO-OAK
22h 08m2 stops
$2,077Multiple Airlines
Find Deal
Sun, Apr 12 - Fri, Apr 17
Multiple Airlines Logo
11:00 am - 9:20 pmOAK-OPO
26h 20m3 stops
Multiple Airlines Logo
8:10 pm - 11:45 amOPO-OAK
23h 35m3 stops
$2,391Multiple Airlines
Find Deal
Sun, Apr 12 - Fri, Apr 17

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 October 23, 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

Wed 12/3

4:50 pm-3:25 pm

2 stops38h 35m

Porto

Sun 12/7

11:15 am-4:04 pm

2 stops36h 49m

$552

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Sun 4/12

7:00 am-9:40 am

2 stops42h 40m

Porto

Fri 4/17

4:40 pm-11:39 pm

2 stops38h 59m

$1,612

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Sun 4/12

11:00 am-8:30 pm

3 stops25h 30m

Porto

Fri 4/17

6:35 am-8:43 pm

2 stops22h 08m

$2,077

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Sun 4/12

11:00 am-9:20 pm

3 stops26h 20m

Porto

Fri 4/17

8:10 pm-11:45 am

3 stops23h 35m

$2,391

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Wed 11/12

11:05 am-1:15 pm

2 stops18h 10m

$587

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.

What is the cheapest time of day to depart on your flight to Porto?

In the afternoon is the cheapest time of day to fly from Oakland, California to Porto when you can find flight prices for as low as $896. Flying to Porto in the afternoon is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $1,138 on average. Flights to Porto from Oakland, California in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

Direct flights

None
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 25h 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
Aveiro
Braga
Matosinhos
Esposende
Lamego
Guimarães
Chaves
Espinho
Viseu
Ponte de Lima
Arcos de Valdevez
Pinhao
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.

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
Sat 11/22
Sat 11/29
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Portugal