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Cheap flights from Portugal to San Diego from $380

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portugal to San Diego departing on 10/29. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Portugal to San Diego

Recent round-trip flight deals from Portugal to San Diego

KLM Logo
7:30 pm - 12:00 pmLIS-SAN
24h 30m1 stop
KLM Logo
7:10 am - 8:00 amSAN-LIS
16h 50m1 stop
$745KLM
Find Deal
Mon, Oct 6 - Mon, Oct 20
Delta Logo
5:00 am - 8:47 pmLIS-SAN
23h 47m2 stops
Delta Logo
6:15 am - 11:15 amSAN-LIS
21h 00m2 stops
$747Delta
Find Deal
Mon, Oct 6 - Mon, Oct 20
Air France Logo
5:30 am - 6:29 pmLIS-SAN
20h 59m2 stops
Air France Logo
4:04 pm - 5:30 pmSAN-LIS
17h 26m2 stops
$752Air France
Find Deal
Sun, Nov 23 - Mon, Dec 8
American Airlines Logo
11:05 am - 6:32 pmLIS-SAN
15h 27m1 stop
American Airlines Logo
6:00 pm - 5:40 pmSAN-LIS
15h 40m1 stop
$754American Airlines
Find Deal
Fri, Feb 20 - Tue, Feb 24
British Airways Logo
11:05 am - 6:53 pmLIS-SAN
15h 48m1 stop
British Airways Logo
8:13 am - 12:05 pmSAN-LIS
19h 52m2 stops
$755British Airways
Find Deal
Fri, Dec 19 - Mon, Jan 5
American Airlines Logo
11:15 am - 9:00 pmLIS-SAN
17h 45m2 stops
American Airlines Logo
2:15 pm - 5:40 pmSAN-LIS
19h 25m2 stops
$756American Airlines
Find Deal
Wed, Nov 26 - Tue, Dec 9
British Airways Logo
6:40 pm - 4:05 pmLIS-SAN
29h 25m1 stop
British Airways Logo
1:35 pm - 2:50 pmSAN-LIS
17h 15m2 stops
$761British Airways
Find Deal
Sat, Dec 20 - Fri, Jan 9
Air France Logo
5:30 am - 3:57 pmLIS-SAN
18h 27m2 stops
Air France Logo
3:59 pm - 5:30 pmSAN-LIS
17h 31m2 stops
$775Air France
Find Deal
Mon, Dec 22 - Wed, Jan 7
United Airlines Logo
6:10 am - 3:45 pmLIS-SAN
17h 35m1 stop
United Airlines Logo
12:50 pm - 10:15 amSAN-LIS
13h 25m1 stop
$884United Airlines
Find Deal
Thu, Nov 27 - Sat, Dec 6
United Airlines Logo
6:10 am - 3:45 pmLIS-SAN
17h 35m1 stop
United Airlines Logo
12:15 pm - 9:20 amSAN-LIS
13h 05m1 stop
$889United Airlines
Find Deal
Wed, Dec 24 - Wed, Jan 7

KLM flights from Portugal to San Diego

Our best KLM deals on Portugal to San Diego flight tickets
KLM
Oct 6
LIS7:30 pmLisbon Humberto Delgado
24h 30m
1 stop
SAN12:00 pmSan Diego
Oct 20
SAN7:10 amSan Diego
16h 50m
1 stop
LIS8:00 amLisbon Humberto Delgado
$745
Find similar
KLM
Oct 6
LIS7:30 pmLisbon Humberto Delgado
24h 30m
1 stop
SAN12:00 pmSan Diego
Oct 20
SAN7:10 amSan Diego
16h 50m
1 stop
LIS8:00 amLisbon Humberto Delgado
$748
Find similar

Delta flights from Portugal to San Diego

Our best Delta deals on Portugal to San Diego flight tickets
Delta
Oct 6
LIS5:00 amLisbon Humberto Delgado
23h 47m
2 stops
SAN8:47 pmSan Diego
Oct 20
SAN6:15 amSan Diego
21h 00m
2 stops
LIS11:15 amLisbon Humberto Delgado
$747
Find similar
Delta
Nov 24
LIS5:00 amLisbon Humberto Delgado
21h 20m
2 stops
SAN6:20 pmSan Diego
Dec 8
SAN8:00 amSan Diego
17h 00m
2 stops
LIS9:00 amLisbon Humberto Delgado
$750
Find similar
Delta
Sep 29
LIS9:50 amLisbon Humberto Delgado
21h 34m
2 stops
SAN11:24 pmSan Diego
Oct 12
SAN6:15 amSan Diego
21h 00m
2 stops
LIS11:15 amLisbon Humberto Delgado
$751
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Portugal to San Diego 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 September 23, 2025.
Use the filters below to find and compare flights from Portugal to San Diego that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LisbonSan Diego

LIS - SAN

LISSAN

Lisbon Humberto Delgado

Mon 10/6

7:30 pm-12:00 pm

1 stop24h 30m

San Diego

Mon 10/20

7:10 am-8:00 am

1 stop16h 50m

$745

LisbonSan Diego

LIS - SAN

LISSAN

Lisbon Humberto Delgado

Mon 10/6

5:00 am-8:47 pm

2 stops23h 47m

San Diego

Mon 10/20

6:15 am-11:15 am

2 stops21h 00m

$747

LisbonSan Diego

LIS - SAN

LISSAN

Lisbon Humberto Delgado

Sun 11/23

5:30 am-6:29 pm

2 stops20h 59m

San Diego

Mon 12/8

4:04 pm-5:30 pm

2 stops17h 26m

$752

LisbonSan Diego

LIS - SAN

LISSAN

Lisbon Humberto Delgado

Fri 2/20

11:05 am-6:32 pm

1 stop15h 27m

San Diego

Tue 2/24

6:00 pm-5:40 pm

1 stop15h 40m

$754

LisbonSan Diego

LIS - SAN

LISSAN

Lisbon Humberto Delgado

Fri 12/19

11:05 am-6:53 pm

1 stop15h 48m

San Diego

Mon 1/5

8:13 am-12:05 pm

2 stops19h 52m

$755

LisbonSan Diego

LIS - SAN

LISSAN

Lisbon Humberto Delgado

Wed 11/26

11:15 am-9:00 pm

2 stops17h 45m

San Diego

Tue 12/9

2:15 pm-5:40 pm

2 stops19h 25m

$756

LisbonSan Diego

LIS - SAN

LISSAN

Lisbon Humberto Delgado

Sat 12/20

6:40 pm-4:05 pm

1 stop29h 25m

San Diego

Fri 1/9

1:35 pm-2:50 pm

2 stops17h 15m

$761

LisbonSan Diego

LIS - SAN

LISSAN

Lisbon Humberto Delgado

Mon 12/22

5:30 am-3:57 pm

2 stops18h 27m

San Diego

Wed 1/7

3:59 pm-5:30 pm

2 stops17h 31m

$775

LisbonSan Diego

LIS - SAN

LISSAN

Lisbon Humberto Delgado

Thu 11/27

6:10 am-3:45 pm

1 stop17h 35m

San Diego

Sat 12/6

12:50 pm-10:15 am

1 stop13h 25m

$884

LisbonSan Diego

LIS - SAN

LISSAN

Lisbon Humberto Delgado

Wed 12/24

6:10 am-3:45 pm

1 stop17h 35m

San Diego

Wed 1/7

12:15 pm-9:20 am

1 stop13h 05m

$889

Flights are sorted by cheapest round-trip flights first.

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See travel insights to San Diego from

How to get the cheapest flight ticket from Portugal to San Diego

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 San Diego?

If you are unable to visit San Diego during the month of November, then departing from Portugal during the month December is also very affordable. Most momondo users find prices during this month for around $833.

What is the cheapest day to depart on your flight to San Diego?

The cheapest day to depart from Portugal to San Diego is on a Saturday. Travelers who choose to depart for San Diego on a Saturday will often find tickets for as low as $809. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $974. These prices are subject to change though, so be sure to set up a Price Alert for flights to San Diego.

Can stopping save me money on Portugal to San Diego flights?

You could potentially save up to 22% on your flight if you consider stops on a Portugal to San Diego flight.

Cheap Portugal to San Diego flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portugal to San Diego

Direct flights

None
There are no direct flights from Portugal to San Diego. There are no popular flight routes from Portugal to San Diego.
Search flight deals

  • When did momondo last update prices for flights from Portugal to San Diego Airport?

    Prices for flights from Portugal to San Diego Airport are updated daily.

  • How many operators does momondo search for flights from Portugal to San Diego Airport?

  • How old do you have to be to fly from Portugal to San Diego 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 Portugal to San Diego Airport.

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

    The necessary travel and health documents for your San Diego 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 Portugal to San Diego

Compare and see reviews for airlines that fly from Portugal to San Diego with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom $710Free CancellationRating
6.7
7,391 reviews
Search British Airways flights
United AirlinesPriceFrom $746Free CancellationRating
7.4
8,926 reviews
Search United Airlines flights

Traveling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
Coronado
Chula Vista
El Cajon
Julian
La Mesa
National City
Poway
Imperial Beach
San Ysidro
Borrego Springs
Lemon Grove
Alpine
Santee

Why use momondo?

Why should I use momondo to find a flight deal from Portugal to San Diego?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Portugal to San Diego. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Portugal to San Diego with flexible booking policies on momondo?

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

How can momondo help me find flights from Portugal to San Diego?

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 Portugal to San Diego.

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

Yes. momondo can track prices for Portugal to San Diego 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.

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