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Cheap flights from California to Porto from $259

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from California to Porto departing on 4/14. 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

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Find the cheapest flights from California to Porto

Cheap round-trip flights

Enter your travel dates to find the best prices.
Lufthansa Logo
5:30 pm - 11:25 pm
LAX
-
OPO
21h 55m
1 stop
Lufthansa Logo
6:20 am - 3:15 pm
OPO
-
LAX
16h 55m
1 stop
$439Lufthansa
Tue, Apr 7 - Fri, Apr 17
Lufthansa Logo
5:30 pm - 11:25 pm
LAX
-
OPO
21h 55m
1 stop
Lufthansa Logo
11:05 am - 3:15 pm
OPO
-
LAX
36h 10m
1 stop
$449Lufthansa
Tue, Apr 7 - Tue, Apr 14
SWISS Logo
8:10 pm - 6:35 pm
LAX
-
OPO
15h 25m
1 stop
SWISS Logo
7:20 pm - 5:35 pm
OPO
-
LAX
29h 15m
1 stop
$467SWISS
Mon, Mar 9 - Mon, Mar 23
SWISS Logo
7:35 pm - 7:55 am
LAX
-
OPO
28h 20m
1 stop
SWISS Logo
8:40 am - 4:30 pm
OPO
-
LAX
15h 50m
1 stop
$468SWISS
Wed, Apr 8 - Wed, Apr 15
Delta Logo
6:00 pm - 10:00 pm
LAX
-
OPO
20h 00m
1 stop
Delta Logo
5:00 am - 11:50 am
OPO
-
LAX
14h 50m
1 stop
$479Delta
Sun, Apr 12 - Tue, Apr 21
Multiple Airlines Logo
5:30 pm - 11:40 pm
LAX
-
OPO
22h 10m
1 stop
Multiple Airlines Logo
12:10 pm - 5:35 pm
OPO
-
LAX
36h 25m
1 stop
$483Multiple Airlines
Wed, Mar 4 - Wed, Mar 11
KLM Logo
3:00 pm - 3:25 pm
SAN
-
OPO
17h 25m
1 stop
KLM Logo
5:00 am - 1:05 pm
OPO
-
SAN
15h 05m
1 stop
$486KLM
Tue, Mar 10 - Tue, Mar 24
Multiple Airlines Logo
4:00 pm - 6:30 pm
SAN
-
OPO
19h 30m
2 stops
Multiple Airlines Logo
6:30 am - 12:14 am
OPO
-
SAN
24h 44m
2 stops
$525Multiple Airlines
Tue, Mar 10 - Fri, Mar 20
KLM Logo
7:00 am - 10:30 am
SAN
-
OPO
20h 30m
2 stops
KLM Logo
5:00 am - 1:05 pm
OPO
-
SAN
15h 05m
1 stop
$543KLM
Tue, Mar 10 - Tue, Mar 24
Delta Logo
6:00 am - 6:20 pm
SMF
-
OPO
28h 20m
2 stops
Delta Logo
5:00 am - 4:45 pm
OPO
-
SMF
43h 45m
2 stops
$548Delta
Tue, Apr 7 - Thu, Apr 16

Lufthansa flights from California to Porto

Our best Lufthansa deals on California to Porto flight tickets
Lufthansa
Apr 7
LAX5:30 pmLos Angeles
21h 55m
1 stop
OPO11:25 pmPorto
Apr 17
OPO6:20 amPorto
16h 55m
1 stop
LAX3:15 pmLos Angeles
$439
Lufthansa
Apr 7
LAX5:30 pmLos Angeles
21h 55m
1 stop
OPO11:25 pmPorto
Apr 14
OPO11:05 amPorto
36h 10m
1 stop
LAX3:15 pmLos Angeles
$449
Lufthansa
Apr 7
LAX5:30 pmLos Angeles
21h 55m
1 stop
OPO11:25 pmPorto
Apr 21
OPO6:20 amPorto
16h 55m
1 stop
LAX3:15 pmLos Angeles
$477

Iberia flights from California to Porto

Our best Iberia deals on California to Porto flight tickets
Iberia
Apr 8
LAX9:02 amLos Angeles
22h 58m
2 stops
OPO4:00 pmPorto
Apr 17
OPO8:20 amPorto
23h 55m
2 stops
LAX12:15 amLos Angeles
$500
Iberia
Apr 13
LAX5:50 pmLos Angeles
18h 10m
1 stop
OPO8:00 pmPorto
Apr 30
OPO8:40 pmPorto
27h 25m
1 stop
LAX4:05 pmLos Angeles
$545
Iberia
Apr 24
LAX7:00 amLos Angeles
16h 40m
2 stops
OPO7:40 amPorto
Apr 30
OPO8:20 amPorto
23h 55m
2 stops
LAX12:15 amLos Angeles
$550

momondo Fare Finder

 
Customize your flight search to find flights from 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 February 8, 2026.
Use the filters below to find and compare flights from California to Porto that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Los AngelesPorto

LAX - OPO

LAXOPO

Los Angeles

Tue 4/7

5:30 pm-11:25 pm

1 stop21h 55m

Porto

Fri 4/17

6:20 am-3:15 pm

1 stop16h 55m

$439

Los AngelesPorto

LAX - OPO

LAXOPO

Los Angeles

Tue 4/7

5:30 pm-11:25 pm

1 stop21h 55m

Porto

Tue 4/14

11:05 am-3:15 pm

1 stop36h 10m

$449

Los AngelesPorto

LAX - OPO

LAXOPO

Los Angeles

Mon 3/9

8:10 pm-6:35 pm

1 stop15h 25m

Porto

Mon 3/23

7:20 pm-5:35 pm

1 stop29h 15m

$467

Los AngelesPorto

LAX - OPO

LAXOPO

Los Angeles

Wed 4/8

7:35 pm-7:55 am

1 stop28h 20m

Porto

Wed 4/15

8:40 am-4:30 pm

1 stop15h 50m

$468

Los AngelesPorto

LAX - OPO

LAXOPO

Los Angeles

Sun 4/12

6:00 pm-10:00 pm

1 stop20h 00m

Porto

Tue 4/21

5:00 am-11:50 am

1 stop14h 50m

$479

Los AngelesPorto

LAX - OPO

LAXOPO

Los Angeles

Wed 3/4

5:30 pm-11:40 pm

1 stop22h 10m

Porto

Wed 3/11

12:10 pm-5:35 pm

1 stop36h 25m

$483

San DiegoPorto

SAN - OPO

SANOPO

San Diego

Tue 3/10

3:00 pm-3:25 pm

1 stop17h 25m

Porto

Tue 3/24

5:00 am-1:05 pm

1 stop15h 05m

$486

San DiegoPorto

SAN - OPO

SANOPO

San Diego

Tue 3/10

4:00 pm-6:30 pm

2 stops19h 30m

Porto

Fri 3/20

6:30 am-12:14 am

2 stops24h 44m

$525

San DiegoPorto

SAN - OPO

SANOPO

San Diego

Tue 3/10

7:00 am-10:30 am

2 stops20h 30m

Porto

Tue 3/24

5:00 am-1:05 pm

1 stop15h 05m

$543

SacramentoPorto

SMF - OPO

SMFOPO

Sacramento Intl

Tue 4/7

6:00 am-6:20 pm

2 stops28h 20m

Porto

Thu 4/16

5:00 am-4:45 pm

2 stops43h 45m

$548

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Porto from

How to get the cheapest flight ticket from 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 month to fly to Porto?

The month of February is, on average, the cheapest month to fly to Porto from California, with most prices found around $625. If you aren’t able to travel during the month of February, then book flights to Porto from California during January instead. Flights to Porto in January, while not as cheap as those in February, still average around $671.

How far in advance should I book a flight to Porto?

You are more likely to see cheaper flights to Porto from California when booking weeks ahead of your departure date. In general, you can expect to find flights to Porto for around $874 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Porto from California for as low as $796 on momondo.

Can stopping save me money on California to Porto flights?

You could potentially save up to 3% on your flight if you consider stops on a California to Porto flight.

Cheap California to Porto flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from California to Porto

Fastest flight time

13h 55m

Direct flights

None
The fastest flight from California to Porto takes 13h 55m
There are no direct flights from California to Porto. There are no popular flight routes from California to Porto.
Search flight deals

  • When did momondo last update prices for flights from California to Porto Airport?

    Prices for flights from California to Porto Airport refresh daily.

  • How many operators does momondo search for flights from California to Porto Airport?

  • How old do you have to be to fly from California to Porto Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from California to Porto Airport.

  • What documentation or ID do you need to fly to Porto Airport?

    The necessary travel and health documents for your Porto Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from California to Porto

Compare and see reviews for airlines that fly from California to Porto with momondo
Airline
Rating
Free Cancellation
Price
LEVELPriceFrom $263Free CancellationRating
0.0
Search LEVEL flights
KLMPriceFrom $366Free CancellationRating
7.7
1,450 reviews
Search KLM flights
TAP AIR PORTUGALPriceFrom $431Free CancellationRating
7.1
2,135 reviews
Search TAP AIR PORTUGAL flights
IberiaPriceFrom $451Free CancellationRating
7.0
3,109 reviews
Search Iberia flights
Scandinavian AirlinesPriceFrom $480Free CancellationRating
7.3
1,678 reviews
Search Scandinavian Airlines flights
DeltaPriceFrom $484Free CancellationRating
7.9
8,173 reviews
Search Delta flights
Air TransatPriceFrom $487Free CancellationRating
7.7
504 reviews
Search Air Transat flights
British AirwaysPriceFrom $533Free CancellationRating
6.7
7,720 reviews
Search British Airways flights
LufthansaPriceFrom $544Free CancellationRating
6.8
7,775 reviews
Search Lufthansa flights
American AirlinesPriceFrom $574Free CancellationRating
7.2
11,252 reviews
Search American Airlines flights

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
Esposende
Lamego
Guimarães
Espinho
Chaves
Pinhao
Arcos de Valdevez
Viseu
Ponte de Lima
Curia
Penafiel
Mesao Frio
Mira
Baiao

Why use momondo?

Why should I use momondo to find a flight deal from California to Porto?

It is quick and easy to find California to Porto flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Porto that suits you.

Can I find flights from California to Porto with flexible booking policies on momondo?

momondo does allow users to show only those flights to Porto from California which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from California to Porto?

momondo helps you find the best flight between California and Porto by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from California to Porto right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Porto from California. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Porto trip

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