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Cheap flights from Portugal to San Diego from $402

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 4/18. 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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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.
Delta Logo
5:00 am - 11:50 am
LIS
-
SAN
14h 50m
1 stop
Delta Logo
1:40 pm - 5:50 pm
SAN
-
LIS
20h 10m
2 stops
$868Delta
Thu, Apr 9 - Thu, Apr 23
Delta Logo
5:00 am - 1:05 pm
LIS
-
SAN
15h 05m
1 stop
Delta Logo
9:50 am - 2:55 pm
SAN
-
LIS
21h 05m
2 stops
$869Delta
Tue, Mar 24 - Tue, Mar 31
Delta Logo
5:00 am - 8:39 pm
LIS
-
SAN
23h 39m
2 stops
Delta Logo
1:37 pm - 5:50 pm
SAN
-
LIS
20h 13m
2 stops
$873Delta
Wed, May 20 - Sat, May 30
Delta Logo
5:00 am - 6:07 pm
LIS
-
SAN
21h 07m
2 stops
Delta Logo
1:37 pm - 5:50 pm
SAN
-
LIS
20h 13m
2 stops
$874Delta
Wed, May 20 - Sat, May 30
Delta Logo
5:00 am - 6:20 pm
LIS
-
SAN
20h 20m
2 stops
Delta Logo
1:45 pm - 5:50 pm
SAN
-
LIS
20h 05m
2 stops
$875Delta
Tue, Mar 24 - Tue, Mar 31
Delta Logo
5:00 am - 6:20 pm
LIS
-
SAN
21h 20m
2 stops
Delta Logo
1:40 pm - 6:45 pm
SAN
-
LIS
21h 05m
1 stop
$879Delta
Thu, Apr 9 - Thu, Apr 23
KLM Logo
5:00 am - 2:54 pm
LIS
-
SAN
17h 54m
2 stops
KLM Logo
1:40 pm - 10:55 am
SAN
-
LIS
37h 15m
1 stop
$880KLM
Thu, Apr 9 - Thu, Apr 23
Delta Logo
5:35 am - 9:13 pm
LIS
-
SAN
23h 38m
2 stops
Delta Logo
11:40 am - 5:50 pm
SAN
-
LIS
22h 10m
2 stops
$881Delta
Mon, Apr 13 - Tue, Apr 28
KLM Logo
5:00 am - 3:55 pm
LIS
-
SAN
18h 55m
2 stops
KLM Logo
1:40 pm - 2:35 pm
SAN
-
LIS
16h 55m
1 stop
$883KLM
Wed, Apr 29 - Thu, May 14
Delta Logo
5:35 am - 9:13 pm
LIS
-
SAN
23h 38m
2 stops
Delta Logo
1:40 pm - 6:45 pm
SAN
-
LIS
21h 05m
1 stop
$887Delta
Mon, Apr 13 - Tue, Apr 28

United Airlines flights from Portugal to San Diego

Our best United Airlines deals on Portugal to San Diego flight tickets
United Airlines
Apr 27
LIS5:05 amLisbon Humberto Delgado
23h 07m
2 stops
SAN8:12 pmSan Diego
May 12
SAN8:54 amSan Diego
17h 36m
2 stops
LIS10:30 amLisbon Humberto Delgado
$904
United Airlines
Apr 9
LIS6:15 amLisbon Humberto Delgado
17h 10m
1 stop
SAN3:25 pmSan Diego
Apr 25
SAN11:00 amSan Diego
15h 35m
2 stops
LIS10:35 amLisbon Humberto Delgado
$911
United Airlines
Apr 25
LIS6:15 amLisbon Humberto Delgado
17h 10m
1 stop
SAN3:25 pmSan Diego
May 12
SAN8:54 amSan Diego
17h 36m
2 stops
LIS10:30 amLisbon Humberto Delgado
$912

Air Canada flights from Portugal to San Diego

Our best Air Canada deals on Portugal to San Diego flight tickets
Air Canada
Apr 28
LIS11:25 amLisbon Humberto Delgado
35h 32m
2 stops
SAN2:57 pmSan Diego
May 16
SAN6:26 pmSan Diego
32h 34m
2 stops
LIS11:00 amLisbon Humberto Delgado
$1,054
Air Canada
May 1
LIS11:25 amLisbon Humberto Delgado
36h 08m
2 stops
SAN3:33 pmSan Diego
May 16
SAN11:04 amSan Diego
39h 56m
2 stops
LIS11:00 amLisbon Humberto Delgado
$1,057
Air Canada
Apr 26
LIS11:25 amLisbon Humberto Delgado
54h 15m
2 stops
SAN9:40 amSan Diego
May 16
SAN1:35 pmSan Diego
37h 25m
2 stops
LIS11:00 amLisbon Humberto Delgado
$1,075

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 March 1, 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

LisbonSan Diego

LIS - SAN

LISSAN

Lisbon Humberto Delgado

Thu 4/9

5:00 am-11:50 am

1 stop14h 50m

San Diego

Thu 4/23

1:40 pm-5:50 pm

2 stops20h 10m

$868

LisbonSan Diego

LIS - SAN

LISSAN

Lisbon Humberto Delgado

Tue 3/24

5:00 am-1:05 pm

1 stop15h 05m

San Diego

Tue 3/31

9:50 am-2:55 pm

2 stops21h 05m

$869

LisbonSan Diego

LIS - SAN

LISSAN

Lisbon Humberto Delgado

Wed 5/20

5:00 am-8:39 pm

2 stops23h 39m

San Diego

Sat 5/30

1:37 pm-5:50 pm

2 stops20h 13m

$873

LisbonSan Diego

LIS - SAN

LISSAN

Lisbon Humberto Delgado

Wed 5/20

5:00 am-6:07 pm

2 stops21h 07m

San Diego

Sat 5/30

1:37 pm-5:50 pm

2 stops20h 13m

$874

LisbonSan Diego

LIS - SAN

LISSAN

Lisbon Humberto Delgado

Tue 3/24

5:00 am-6:20 pm

2 stops20h 20m

San Diego

Tue 3/31

1:45 pm-5:50 pm

2 stops20h 05m

$875

LisbonSan Diego

LIS - SAN

LISSAN

Lisbon Humberto Delgado

Thu 4/9

5:00 am-6:20 pm

2 stops21h 20m

San Diego

Thu 4/23

1:40 pm-6:45 pm

1 stop21h 05m

$879

LisbonSan Diego

LIS - SAN

LISSAN

Lisbon Humberto Delgado

Thu 4/9

5:00 am-2:54 pm

2 stops17h 54m

San Diego

Thu 4/23

1:40 pm-10:55 am

1 stop37h 15m

$880

LisbonSan Diego

LIS - SAN

LISSAN

Lisbon Humberto Delgado

Mon 4/13

5:35 am-9:13 pm

2 stops23h 38m

San Diego

Tue 4/28

11:40 am-5:50 pm

2 stops22h 10m

$881

LisbonSan Diego

LIS - SAN

LISSAN

Lisbon Humberto Delgado

Wed 4/29

5:00 am-3:55 pm

2 stops18h 55m

San Diego

Thu 5/14

1:40 pm-2:35 pm

1 stop16h 55m

$883

LisbonSan Diego

LIS - SAN

LISSAN

Lisbon Humberto Delgado

Mon 4/13

5:35 am-9:13 pm

2 stops23h 38m

San Diego

Tue 4/28

1:40 pm-6:45 pm

1 stop21h 05m

$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 January, then departing from Portugal during the month November is also very affordable. Most momondo users find prices during this month for around $889.

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

You could potentially save up to 10% 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

23h 39m

Direct flights

None
The fastest flight from Portugal to San Diego takes 23h 39m
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 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
Coronado
Chula Vista
El Cajon
Julian
Poway
National City
Imperial Beach
San Ysidro
Borrego Springs
La Mesa
Alpine
Lemon Grove
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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