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SAN - OPO

$330 Find Cheap Flights from San Diego to Porto - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$717
Typical prices: $867-$1,196
Delta
Fri 3/16Fri 3/30
SAN - OPO • 1 stop
Cheapest one-way
$330
Typical prices: $421-$603
SWISS
Fri 1/5
SAN - OPO • 2 stops
Nonstop flights
Not available
There are currently no direct flights between San Diego and Porto. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to travel
January
Cheapest • 53% price drop
June
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Amsterdam Schiphol (AMS)
Cheapest • Avg $1,070 (round-trip)
Montreal Pierre Elliott Trudeau Intl (YUL)
Shortest trip • 16h 21m (one-way)
Insights
Insights
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Booking Insights
Flight Deals

Cheap Flights from San Diego to Porto (SAN-OPO)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from San Diego to Porto

Tue, Mar 16 - Tue, Mar 30
Delta Logo
7:00 am - 10:35 amSAN  San Diego-OPO Porto
20h 35m2 stops New York John F Kennedy Intl Paris Charles de Gaulle
Delta Logo
5:00 am - 11:45 amOPO  Porto-SAN San Diego
14h 45m1 stop Amsterdam Schiphol
$717Delta
Tue, Mar 16 - Tue, Mar 30
Delta Logo
3:05 pm - 3:25 pmSAN  San Diego-OPO Porto
17h 20m1 stop Amsterdam Schiphol
Delta Logo
5:00 am - 11:45 amOPO  Porto-SAN San Diego
14h 45m1 stop Amsterdam Schiphol
$717Delta
Tue, Mar 16 - Tue, Mar 30
United Airlines Logo
10:51 am - 9:30 amSAN  San Diego-OPO Porto
15h 39m2 stops Chicago O'Hare Intl Newark
United Airlines Logo
6:00 am - 9:57 pmOPO  Porto-SAN San Diego
23h 57m2 stops Frankfurt am Main Chicago O'Hare Intl
$726United Airlines
Sun, Mar 7 - Sat, Mar 13
Iberia Logo
7:00 am - 7:40 amSAN  San Diego-OPO Porto
16h 40m2 stops Dallas/Fort Worth Madrid Barajas
Iberia Logo
9:55 pm - 4:10 pmOPO  Porto-SAN San Diego
26h 15m2 stops Barcelona-El Prat London Heathrow
$775Iberia
Sun, Mar 7 - Sat, Mar 13
United Airlines Logo
7:41 pm - 9:30 amSAN  San Diego-OPO Porto
29h 49m3 stops San Francisco Chicago O'Hare Intl Newark
United Airlines Logo
6:00 am - 10:38 pmOPO  Porto-SAN San Diego
24h 38m2 stops Frankfurt am Main Newark
$776United Airlines
Mon, Mar 22 - Wed, Mar 24
Multiple Airlines Logo
7:00 am - 12:05 pmSAN  San Diego-OPO Porto
22h 05m2 stops Chicago O'Hare Intl Brussels Bruxelles-National
Multiple Airlines Logo
12:35 pm - 8:43 amOPO  Porto-SAN San Diego
27h 08m2 stops Frankfurt am Main San Francisco
$778Multiple Airlines
Sun, Mar 7 - Sat, Mar 13
Lufthansa Logo
10:30 pm - 9:30 amSAN  San Diego-OPO Porto
27h 00m1 stop Newark
Lufthansa Logo
6:10 am - 3:45 pmOPO  Porto-SAN San Diego
17h 35m1 stop Munich Franz Josef Strauss
$824Lufthansa
Sun, Nov 1 - Mon, Dec 14
Lufthansa Logo
6:35 am - 9:30 amSAN  San Diego-OPO Porto
18h 55m1 stop Newark
Lufthansa Logo
1:45 pm - 3:45 pmOPO  Porto-SAN San Diego
34h 00m1 stop Munich Franz Josef Strauss
$834Lufthansa
Sun, Nov 1 - Mon, Dec 14
KLM Logo
7:20 am - 8:15 amSAN  San Diego-OPO Porto
16h 55m1 stop New York John F Kennedy Intl
KLM Logo
5:00 am - 6:05 pmOPO  Porto-SAN San Diego
21h 05m2 stops Amsterdam Schiphol Salt Lake City
$881KLM
Thu, Dec 24 - Thu, Jan 7
KLM Logo
2:05 pm - 3:25 pmSAN  San Diego-OPO Porto
17h 20m1 stop Amsterdam Schiphol
KLM Logo
5:00 am - 12:10 pmOPO  Porto-SAN San Diego
15h 10m1 stop Amsterdam Schiphol
$1,121KLM
Booking Insights

Price, demand and travel trends for San Diego to Porto flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

How much is a round-trip flight from San Diego to Porto?

Round-trip flights from San Diego to Porto typically range from $867 to $1,196. The lowest price found in the past 5 days was $717, on Delta.

What's the cheapest day of the week to fly from San Diego to Porto?

Based on deals KAYAK users found in the last 12 months, Monday is the cheapest day of the week to fly from San Diego to Porto. It’s 15% cheaper than the average day, while Thursday is the most expensive, with prices 14% higher.

What’s the cheapest month to fly from San Diego to Porto?

•January is the cheapest month to fly from San Diego to Porto at $493 round-trip.
•May ($1,196) and June ($1,160) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 142% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

Find deals

Key details for San Diego to Porto flights

Low season

February

Cheapest flight

$330
Beat the crowds with an average 91% drop in travelers.
The most popular month to fly with an average 23% increase in travelers.
One-way flight from San Diego to Porto

When to book flights from San Diego to Porto

Are your dates flexible? Find out the best times to travel from San Diego to Porto based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your San Diego to Porto flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What cabin classes can I book on flights from San Diego to Porto?

    Three cabin classes are available on flights from San Diego to Porto:

    • Economy Class
    • Premium Economy Class
    • Business Class

  • How long is a flight from San Diego to Porto?

    A nonstop flight from San Diego to Porto takes 00m, covering 5,596 miles.

  • Do I need a passport to fly from San Diego to Porto?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a San Diego to Porto flight?

    Round-trip flights from San Diego to Porto range from $867 to $1,196, with an average of $1,055 over the past 12 months. Anything below $867 counts as a good deal.

  • How are flight prices from San Diego to Porto looking right now?

    One-way fares from San Diego to Porto are currently lower than usual. Average one-way flight prices are about $400, which is 15% below the typical average for this route.

  • What car rental options are available at Porto Airport (OPO)?

    Porto Airport (OPO) hosts 5 major car rental companies, with daily rates starting from around $2 for economy cars. Top options include:

    • GREEN MOTION
    • Drive on Holiday
    • Klass Wagen
    • Goldcar Rental SP
    • Sixt

  • Which airports can I use when flying from San Diego to Porto?

    Flights from San Diego to Porto usually depart from San Diego (SAN) and arrive at Porto (OPO).

  • Which airports do connecting flights from San Diego to Porto pass through?

    One-stop flights from San Diego to Porto most commonly connect through:

    • Amsterdam Schiphol (AMS) - 35% of one-stop connections
    • Munich Franz Josef Strauss (MUC) - 24% of one-stop connections
    • New York John F Kennedy Intl (JFK) - 15% of one-stop connections
    • Newark (EWR) - 13% of one-stop connections

  • Can I save money by using flexible dates for flights from San Diego to Porto?

    Yes. Flexible dates can save you up to 26% on flights from San Diego to Porto. Monday is the cheapest departure day at $900 round-trip on average, while Thursday is the most expensive at $1,212, a difference of $312.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • How much time can I save by choosing a different layover airport from San Diego to Porto?

    Flying via Montreal Pierre Elliott Trudeau Intl (YUL) gives the shortest average 1-stop total travel time at 16h 21m, compared with 16h 34m via Amsterdam Schiphol (AMS) and 17h 52m via Newark (EWR).

  • What is the time difference between San Diego and Porto?

    Porto is 8 hours ahead of San Diego (Western European Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Porto?

    Some of the most popular sights in Porto are Ribeira Square, Avenida dos Aliados and Boavista Square. These are among the most viewed places in Porto on KAYAK.

Your guide to booking San Diego to Porto flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Monday departure and avoid flying on Thursday. On this route, Monday flights average $900, about $312 less than Thursday fares (26% savings) based on the last 12 months.
  • If you can choose when to travel, plan your San Diego to Porto trip for January. Fares historically average $493 round-trip in that month - typically $703 less than the most expensive month, which is May (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Porto Airport.

    • Opo Hotel Porto Aeroporto

More options for your flight from San Diego to Porto

Complete your trip to Porto with a hotel stay or car rental

Car rentals in Porto
Hotels in Porto
Vacations in Porto