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Cheap flights from San Diego to Portugal from $335

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Diego to Portugal departing on 10/18. 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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0 bags

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Find the cheapest flights from San Diego to Portugal

Cheap round-trip flights

Enter your travel dates to find the best prices.
British Airways Logo
6:00 pm - 9:45 pm
SAN
-
LIS
19h 45m
1 stop
British Airways Logo
11:05 am - 6:53 pm
LIS
-
SAN
15h 48m
1 stop
$744British Airways
Sun, Nov 1 - Thu, Nov 12
British Airways Logo
6:00 pm - 5:45 pm
SAN
-
LIS
15h 45m
1 stop
British Airways Logo
11:05 am - 6:53 pm
LIS
-
SAN
15h 48m
1 stop
$745British Airways
Sun, Nov 1 - Thu, Nov 12
Multiple Airlines Logo
6:00 pm - 5:45 pm
SAN
-
LIS
15h 45m
1 stop
Multiple Airlines Logo
6:30 am - 8:18 pm
LIS
-
SAN
21h 48m
2 stops
$752Multiple Airlines
Sun, Nov 1 - Thu, Nov 12
American Airlines Logo
6:00 pm - 5:40 pm
SAN
-
LIS
15h 40m
1 stop
American Airlines Logo
11:05 am - 10:22 pm
LIS
-
SAN
19h 17m
2 stops
$763American Airlines
Wed, Nov 11 - Wed, Nov 18
American Airlines Logo
7:21 am - 9:05 am
SAN
-
LIS
17h 44m
2 stops
American Airlines Logo
11:05 am - 9:52 pm
LIS
-
SAN
18h 47m
2 stops
$771American Airlines
Wed, Nov 11 - Wed, Nov 18
Delta Logo
7:00 am - 10:25 am
SAN
-
OPO
19h 25m
1 stop
Delta Logo
11:45 am - 11:50 am
OPO
-
SAN
32h 05m
1 stop
$778Delta
Sun, Sep 27 - Wed, Oct 14
United Airlines Logo
10:40 pm - 9:45 am
SAN
-
OPO
27h 05m
2 stops
United Airlines Logo
12:15 pm - 5:26 pm
OPO
-
SAN
37h 11m
2 stops
$779United Airlines
Sat, Sep 26 - Tue, Oct 13
United Airlines Logo
1:30 pm - 9:45 am
SAN
-
OPO
36h 15m
1 stop
United Airlines Logo
12:15 pm - 5:26 pm
OPO
-
SAN
37h 11m
2 stops
$780United Airlines
Sat, Sep 26 - Tue, Oct 13
Delta Logo
6:15 am - 3:30 pm
SAN
-
OPO
25h 15m
2 stops
Delta Logo
11:45 am - 11:50 am
OPO
-
SAN
32h 05m
1 stop
$782Delta
Sun, Sep 27 - Wed, Oct 14
Multiple Airlines Logo
7:00 am - 6:45 am
SAN
-
PDL
16h 45m
1 stop
Multiple Airlines Logo
5:30 pm - 2:35 pm
PDL
-
SAN
28h 05m
1 stop
$1,037Multiple Airlines
Mon, Oct 5 - Mon, Oct 19

British Airways flights from San Diego to Portugal

Our best British Airways deals on San Diego to Portugal flight tickets
British Airways
Nov 1
SAN6:00 pmSan Diego
19h 45m
1 stop
LIS9:45 pmLisbon Humberto Delgado
Nov 12
LIS11:05 amLisbon Humberto Delgado
15h 48m
1 stop
SAN6:53 pmSan Diego
$744
British Airways
Nov 1
SAN6:00 pmSan Diego
15h 45m
1 stop
LIS5:45 pmLisbon Humberto Delgado
Nov 12
LIS11:05 amLisbon Humberto Delgado
15h 48m
1 stop
SAN6:53 pmSan Diego
$745
British Airways
Oct 19
SAN4:45 pmSan Diego
15h 00m
1 stop
LIS3:45 pmLisbon Humberto Delgado
Oct 30
LIS11:05 amLisbon Humberto Delgado
16h 34m
1 stop
SAN8:39 pmSan Diego
$790

SWISS flights from San Diego to Portugal

Our best SWISS deals on San Diego to Portugal flight tickets
SWISS
Aug 24
SAN3:56 pmSan Diego
23h 29m
2 stops
LIS11:25 pmLisbon Humberto Delgado
Sep 21
LIS5:55 amLisbon Humberto Delgado
24h 15m
2 stops
SAN10:10 pmSan Diego
$755
SWISS
Oct 1
SAN3:56 pmSan Diego
23h 29m
2 stops
LIS11:25 pmLisbon Humberto Delgado
Oct 7
LIS5:55 amLisbon Humberto Delgado
24h 47m
2 stops
SAN10:42 pmSan Diego
$760
SWISS
Jun 8
SAN6:40 amSan Diego
24h 05m
2 stops
LIS2:45 pmLisbon Humberto Delgado
Jun 23
LIS6:25 pmLisbon Humberto Delgado
32h 05m
2 stops
SAN6:30 pmSan Diego
$876

momondo Fare Finder

 
Customize your flight search to find flights from San Diego to Portugal 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 May 18, 2026.
Use the filters below to find and compare flights from San Diego to Portugal that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Sun 11/1

6:00 pm-9:45 pm

1 stop19h 45m

Lisbon Humberto Delgado

Thu 11/12

11:05 am-6:53 pm

1 stop15h 48m

$744
Quickest round-trip

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Sun 11/1

6:00 pm-5:45 pm

1 stop15h 45m

Lisbon Humberto Delgado

Thu 11/12

11:05 am-6:53 pm

1 stop15h 48m

$745

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Sun 11/1

6:00 pm-5:45 pm

1 stop15h 45m

Lisbon Humberto Delgado

Thu 11/12

6:30 am-8:18 pm

2 stops21h 48m

$752

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Wed 11/11

6:00 pm-5:40 pm

1 stop15h 40m

Lisbon Humberto Delgado

Wed 11/18

11:05 am-10:22 pm

2 stops19h 17m

$763

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Wed 11/11

7:21 am-9:05 am

2 stops17h 44m

Lisbon Humberto Delgado

Wed 11/18

11:05 am-9:52 pm

2 stops18h 47m

$771

San DiegoPorto

SAN - OPO

SANOPO

San Diego

Sun 9/27

7:00 am-10:25 am

1 stop19h 25m

Porto

Wed 10/14

11:45 am-11:50 am

1 stop32h 05m

$778

San DiegoPorto

SAN - OPO

SANOPO

San Diego

Sat 9/26

10:40 pm-9:45 am

2 stops27h 05m

Porto

Tue 10/13

12:15 pm-5:26 pm

2 stops37h 11m

$779

San DiegoPorto

SAN - OPO

SANOPO

San Diego

Sat 9/26

1:30 pm-9:45 am

1 stop36h 15m

Porto

Tue 10/13

12:15 pm-5:26 pm

2 stops37h 11m

$780

San DiegoPorto

SAN - OPO

SANOPO

San Diego

Sun 9/27

6:15 am-3:30 pm

2 stops25h 15m

Porto

Wed 10/14

11:45 am-11:50 am

1 stop32h 05m

$782

San DiegoPonta Delgada

SAN - PDL

SANPDL

San Diego

Mon 10/5

7:00 am-6:45 am

1 stop16h 45m

Ponta Delgada Nordela

Mon 10/19

5:30 pm-2:35 pm

1 stop28h 05m

$1,037

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 Portugal from

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

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 Portugal?

The cheapest month to fly to Portugal from San Diego is in December. Flight prices, which tend to average around $443, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of December, then book flights to Portugal from San Diego during November instead. Flights to Portugal in November, while not as cheap as those in December, still average around $448.

How far in advance should I book a flight from San Diego to Portugal?

You are more likely to see cheaper flights to Portugal from San Diego when booking weeks ahead of your departure date. In general, you can expect to find flights to Portugal for around $761 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Portugal from San Diego for as low as $649 on momondo.

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

You could potentially save up to 5% on your flight if you consider stops on a San Diego to Portugal flight.

Cheap San Diego to Portugal flight deals and tips

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

Fastest flight time

15h 00m

Direct flights

None
The fastest flight from San Diego to Portugal takes 15h 00m
There are no direct flights from San Diego to Portugal. There are no popular flight routes from San Diego to Portugal.
Search flight deals

Frequently asked questions about flying from San Diego to Portugal

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

    Prices for flights from San Diego Airport to Portugal refresh daily.

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

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

    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 San Diego Airport to Portugal.

  • What documentation or ID do you need to fly to Portugal?

    The travel and health documents required for your trip to Portugal can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Portugal. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from San Diego to Portugal

Compare and see reviews for airlines that fly from San Diego to Portugal with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $489Free CancellationRating
7.9
8,447 reviews
Search Delta flights
KLMPriceFrom $491Free CancellationRating
7.8
1,517 reviews
Search KLM flights
IberiaPriceFrom $506Free CancellationRating
7.0
3,219 reviews
Search Iberia flights
United AirlinesPriceFrom $514Free CancellationRating
7.4
9,737 reviews
Search United Airlines flights
British AirwaysPriceFrom $520Free CancellationRating
6.7
7,986 reviews
Search British Airways flights
LufthansaPriceFrom $520Free CancellationRating
6.8
8,009 reviews
Search Lufthansa flights
American AirlinesPriceFrom $555Free CancellationRating
7.1
11,650 reviews
Search American Airlines flights
Air CanadaPriceFrom $589Free CancellationRating
7.1
11,060 reviews
Search Air Canada flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from San Diego to Portugal. momondo saves you time and could save you money on your trip.

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

All flight searches from San Diego to Portugal on momondo can be filtered to show those which offer flexible booking policies.

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

momondo provides multiple filters to help you find the best flight to Portugal from San Diego. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes momondo offers price alerts on flights to Portugal from San Diego. 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.

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Find better results for your trip to Portugal

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Popular flights according to clicks in the last 7 days on momondo
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