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Cheap flights from Portugal to San Diego from $455

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 9/22. 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
1 adult, Economy, 0 bags

Find the cheapest flights from Portugal to San Diego

Recent round-trip flight deals from Portugal to San Diego

Enter your travel dates to find the best prices.
American Airlines Logo
6:30 am - 9:56 pm
LIS
-
SAN
23h 26m
2 stops
American Airlines Logo
12:50 pm - 9:55 pm
SAN
-
LIS
25h 05m
2 stops
$866American Airlines
Sat, Dec 5 - Mon, Dec 7
American Airlines Logo
8:20 am - 8:15 pm
LIS
-
SAN
19h 55m
2 stops
American Airlines Logo
1:22 pm - 6:55 pm
SAN
-
LIS
21h 33m
2 stops
$868American Airlines
Thu, Dec 3 - Mon, Dec 7
American Airlines Logo
6:35 am - 8:01 pm
LIS
-
SAN
21h 26m
2 stops
American Airlines Logo
4:45 pm - 11:15 pm
SAN
-
LIS
22h 30m
1 stop
$870American Airlines
Wed, Sep 16 - Wed, Sep 30
American Airlines Logo
11:05 am - 9:44 pm
LIS
-
SAN
18h 39m
1 stop
American Airlines Logo
6:00 pm - 6:55 pm
SAN
-
LIS
16h 55m
1 stop
$878American Airlines
Sat, Dec 5 - Mon, Dec 7
Delta Logo
5:00 am - 11:50 am
LIS
-
SAN
14h 50m
1 stop
Delta Logo
1:15 pm - 5:50 pm
SAN
-
LIS
20h 35m
2 stops
$879Delta
Tue, Sep 15 - Tue, Sep 29
British Airways Logo
11:05 am - 8:51 pm
LIS
-
SAN
17h 46m
1 stop
British Airways Logo
4:45 pm - 5:45 pm
SAN
-
LIS
17h 00m
1 stop
$880British Airways
Fri, Sep 18 - Sun, Sep 27
American Airlines Logo
6:30 am - 8:15 pm
LIS
-
SAN
21h 45m
2 stops
American Airlines Logo
6:00 pm - 6:55 pm
SAN
-
LIS
16h 55m
1 stop
$882American Airlines
Sat, Dec 5 - Mon, Dec 7
American Airlines Logo
6:30 am - 8:15 pm
LIS
-
SAN
21h 45m
2 stops
American Airlines Logo
6:00 pm - 6:55 pm
SAN
-
LIS
16h 55m
1 stop
$883American Airlines
Sat, Dec 5 - Mon, Dec 7
Delta Logo
5:00 am - 6:36 pm
LIS
-
SAN
21h 36m
2 stops
Delta Logo
3:00 pm - 5:50 pm
SAN
-
LIS
18h 50m
2 stops
$884Delta
Tue, Sep 15 - Tue, Sep 29
British Airways Logo
7:10 am - 2:55 pm
LIS
-
SAN
15h 45m
1 stop
British Airways Logo
6:15 am - 12:55 pm
SAN
-
LIS
22h 40m
2 stops
$887British Airways
Mon, Sep 14 - Mon, Sep 28

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British Airways flights from Portugal to San Diego

Our best British Airways deals on Portugal to San Diego flight tickets
British Airways
Sep 18
LIS11:05 amLisbon Humberto Delgado
17h 46m
1 stop
SAN8:51 pmSan Diego
Sep 27
SAN4:45 pmSan Diego
17h 00m
1 stop
LIS5:45 pmLisbon Humberto Delgado
$880
British Airways
Jun 16
LIS11:05 amLisbon Humberto Delgado
15h 30m
1 stop
SAN6:35 pmSan Diego
Jun 23
SAN4:45 pmSan Diego
17h 10m
1 stop
LIS5:55 pmLisbon Humberto Delgado
$887
British Airways
Sep 1
LIS11:05 amLisbon Humberto Delgado
17h 30m
1 stop
SAN8:35 pmSan Diego
Oct 5
SAN4:45 pmSan Diego
15h 00m
1 stop
LIS3:45 pmLisbon Humberto Delgado
$896

American Airlines flights from Portugal to San Diego

Our best American Airlines deals on Portugal to San Diego flight tickets
American Airlines
Dec 5
LIS6:30 amLisbon Humberto Delgado
23h 26m
2 stops
SAN9:56 pmSan Diego
Dec 7
SAN12:50 pmSan Diego
25h 05m
2 stops
LIS9:55 pmLisbon Humberto Delgado
$866
American Airlines
Dec 3
LIS8:20 amLisbon Humberto Delgado
19h 55m
2 stops
SAN8:15 pmSan Diego
Dec 7
SAN1:22 pmSan Diego
21h 33m
2 stops
LIS6:55 pmLisbon Humberto Delgado
$868
American Airlines
Sep 16
LIS6:35 amLisbon Humberto Delgado
21h 26m
2 stops
SAN8:01 pmSan Diego
Sep 30
SAN4:45 pmSan Diego
22h 30m
1 stop
LIS11:15 pmLisbon Humberto Delgado
$870

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 June 13, 2026.
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

Cheapest round-trip

LisbonSan Diego

LIS - SAN

LISSAN

Lisbon Humberto Delgado

Sat 12/5

6:30 am-9:56 pm

2 stops23h 26m

San Diego

Mon 12/7

12:50 pm-9:55 pm

2 stops25h 05m

$866

LisbonSan Diego

LIS - SAN

LISSAN

Lisbon Humberto Delgado

Thu 12/3

8:20 am-8:15 pm

2 stops19h 55m

San Diego

Mon 12/7

1:22 pm-6:55 pm

2 stops21h 33m

$868

LisbonSan Diego

LIS - SAN

LISSAN

Lisbon Humberto Delgado

Wed 9/16

6:35 am-8:01 pm

2 stops21h 26m

San Diego

Wed 9/30

4:45 pm-11:15 pm

1 stop22h 30m

$870

LisbonSan Diego

LIS - SAN

LISSAN

Lisbon Humberto Delgado

Sat 12/5

11:05 am-9:44 pm

1 stop18h 39m

San Diego

Mon 12/7

6:00 pm-6:55 pm

1 stop16h 55m

$878

LisbonSan Diego

LIS - SAN

LISSAN

Lisbon Humberto Delgado

Tue 9/15

5:00 am-11:50 am

1 stop14h 50m

San Diego

Tue 9/29

1:15 pm-5:50 pm

2 stops20h 35m

$879
Quickest round-trip

LisbonSan Diego

LIS - SAN

LISSAN

Lisbon Humberto Delgado

Fri 9/18

11:05 am-8:51 pm

1 stop17h 46m

San Diego

Sun 9/27

4:45 pm-5:45 pm

1 stop17h 00m

$880

LisbonSan Diego

LIS - SAN

LISSAN

Lisbon Humberto Delgado

Sat 12/5

6:30 am-8:15 pm

2 stops21h 45m

San Diego

Mon 12/7

6:00 pm-6:55 pm

1 stop16h 55m

$882

LisbonSan Diego

LIS - SAN

LISSAN

Lisbon Humberto Delgado

Sat 12/5

6:30 am-8:15 pm

2 stops21h 45m

San Diego

Mon 12/7

6:00 pm-6:55 pm

1 stop16h 55m

$883

LisbonSan Diego

LIS - SAN

LISSAN

Lisbon Humberto Delgado

Tue 9/15

5:00 am-6:36 pm

2 stops21h 36m

San Diego

Tue 9/29

3:00 pm-5:50 pm

2 stops18h 50m

$884

LisbonSan Diego

LIS - SAN

LISSAN

Lisbon Humberto Delgado

Mon 9/14

7:10 am-2:55 pm

1 stop15h 45m

San Diego

Mon 9/28

6:15 am-12:55 pm

2 stops22h 40m

$887

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 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 September, then departing from Portugal during the month May is also very affordable. Most momondo users find prices during this month for around $576.

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

You could potentially save up to 5% 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

Fastest flight time

17h 35m

Direct flights

None
The fastest flight from Portugal to San Diego takes 17h 35m
There are no direct flights from Portugal to San Diego. There are no popular flight routes from Portugal to San Diego.
Search flight deals

Frequently asked questions about flying from Portugal to San Diego

  • 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 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.

Traveling to a place near San Diego?

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