Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from Oakland, California to Porto from $788

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 3/4. 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.
KLM Logo
5:55 am - 7:20 pm
OAK
-
OPO
29h 25m
2 stops
KLM Logo
4:10 pm - 4:00 pm
OPO
-
OAK
30h 50m
2 stops
$788KLM
Wed, Mar 4 - Wed, Mar 11
KLM Logo
5:55 am - 10:30 am
OAK
-
OPO
44h 35m
2 stops
KLM Logo
9:55 am - 4:00 pm
OPO
-
OAK
37h 05m
2 stops
$798KLM
Tue, Mar 3 - Tue, Mar 10
Multiple Airlines Logo
10:04 am - 10:25 pm
OAK
-
OPO
28h 21m
3 stops
Multiple Airlines Logo
5:00 am - 9:14 am
OPO
-
OAK
35h 14m
3 stops
$1,205Multiple Airlines
Wed, Mar 4 - Wed, Mar 11
Delta Logo
5:55 am - 3:25 pm
OAK
-
OPO
25h 30m
2 stops
Delta Logo
11:45 am - 11:49 pm
OPO
-
OAK
44h 04m
2 stops
$1,301Delta
Sat, Apr 4 - Mon, Apr 13
Delta Logo
4:49 pm - 3:25 pm
OAK
-
OPO
38h 36m
2 stops
Delta Logo
11:45 am - 11:49 pm
OPO
-
OAK
44h 04m
2 stops
$1,309Delta
Fri, Apr 3 - Mon, Apr 13
Delta Logo
4:49 pm - 10:30 pm
OAK
-
OPO
45h 41m
2 stops
Delta Logo
11:45 am - 11:49 pm
OPO
-
OAK
44h 04m
2 stops
$1,347Delta
Sun, Apr 5 - Sun, Apr 12
Delta Logo
12:35 pm - 10:15 pm
OAK
-
OPO
25h 40m
2 stops
Delta Logo
11:45 am - 11:49 pm
OPO
-
OAK
44h 04m
2 stops
$1,376Delta
Wed, Apr 1 - Sun, Apr 12
Delta Logo
5:55 pm - 6:10 pm
OAK
-
OPO
40h 15m
2 stops
Delta Logo
11:45 am - 11:49 pm
OPO
-
OAK
44h 04m
2 stops
$1,384Delta
Sat, Apr 4 - Sun, Apr 12
Multiple Airlines Logo
7:00 am - 8:45 am
OAK
-
OPO
42h 45m
2 stops
Multiple Airlines Logo
4:40 pm - 11:43 pm
OPO
-
OAK
39h 03m
2 stops
$1,395Multiple Airlines
Fri, Mar 27 - Sun, Apr 5
Delta Logo
5:55 am - 10:40 am
OAK
-
OPO
44h 45m
2 stops
Delta Logo
11:45 am - 11:49 pm
OPO
-
OAK
44h 04m
2 stops
$1,427Delta
Thu, Apr 2 - Mon, Apr 13

KLM flights from Oakland, California to Porto

Our best KLM deals on Oakland, California to Porto flight tickets
KLM
Mar 4
OAK5:55 amOakland
29h 25m
2 stops
OPO7:20 pmPorto
Mar 11
OPO4:10 pmPorto
30h 50m
2 stops
OAK4:00 pmOakland
$788
KLM
Mar 3
OAK5:55 amOakland
44h 35m
2 stops
OPO10:30 amPorto
Mar 10
OPO9:55 amPorto
37h 05m
2 stops
OAK4:00 pmOakland
$798

Delta flights from Oakland, California to Porto

Our best Delta deals on Oakland, California to Porto flight tickets
Delta
Apr 4
OAK5:55 amOakland
25h 30m
2 stops
OPO3:25 pmPorto
Apr 13
OPO11:45 amPorto
44h 04m
2 stops
OAK11:49 pmOakland
$1,301
Delta
Apr 3
OAK4:49 pmOakland
38h 36m
2 stops
OPO3:25 pmPorto
Apr 13
OPO11:45 amPorto
44h 04m
2 stops
OAK11:49 pmOakland
$1,309
Delta
Apr 5
OAK4:49 pmOakland
45h 41m
2 stops
OPO10:30 pmPorto
Apr 12
OPO11:45 amPorto
44h 04m
2 stops
OAK11:49 pmOakland
$1,347

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 January 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

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Wed 3/4

5:55 am-7:20 pm

2 stops29h 25m

Porto

Wed 3/11

4:10 pm-4:00 pm

2 stops30h 50m

$788

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Tue 3/3

5:55 am-10:30 am

2 stops44h 35m

Porto

Tue 3/10

9:55 am-4:00 pm

2 stops37h 05m

$798

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Wed 3/4

10:04 am-10:25 pm

3 stops28h 21m

Porto

Wed 3/11

5:00 am-9:14 am

3 stops35h 14m

$1,205

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Sat 4/4

5:55 am-3:25 pm

2 stops25h 30m

Porto

Mon 4/13

11:45 am-11:49 pm

2 stops44h 04m

$1,301

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Fri 4/3

4:49 pm-3:25 pm

2 stops38h 36m

Porto

Mon 4/13

11:45 am-11:49 pm

2 stops44h 04m

$1,309

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Sun 4/5

4:49 pm-10:30 pm

2 stops45h 41m

Porto

Sun 4/12

11:45 am-11:49 pm

2 stops44h 04m

$1,347

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Wed 4/1

12:35 pm-10:15 pm

2 stops25h 40m

Porto

Sun 4/12

11:45 am-11:49 pm

2 stops44h 04m

$1,376

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Sat 4/4

5:55 pm-6:10 pm

2 stops40h 15m

Porto

Sun 4/12

11:45 am-11:49 pm

2 stops44h 04m

$1,384

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Fri 3/27

7:00 am-8:45 am

2 stops42h 45m

Porto

Sun 4/5

4:40 pm-11:43 pm

2 stops39h 03m

$1,395

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Thu 4/2

5:55 am-10:40 am

2 stops44h 45m

Porto

Mon 4/13

11:45 am-11:49 pm

2 stops44h 04m

$1,427

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 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 37% of people opting to fly with this airline when traveling to Porto. Keep in mind that there are 12 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 35m

Direct flights

None
The fastest flight from Oakland, California to Porto takes 20h 35m
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 20h 35m.

  • 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
Matosinhos
Aveiro
Esposende
Lamego
Guimarães
Chaves
Espinho
Pinhao
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.

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 2/17
Tue 2/24
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Portugal