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Cheap flights from San Diego to Portugal from $330

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 10/25. 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

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from San Diego to Portugal

Cheap round-trip flights

Enter your travel dates to find the best prices.
KLM Logo
7:00 am - 8:00 am
SAN
-
LIS
17h 00m
1 stop
KLM Logo
3:35 pm - 12:10 pm
LIS
-
SAN
28h 35m
1 stop
$744KLM
Wed, Nov 11 - Wed, Nov 18
Lufthansa Logo
6:26 pm - 11:30 pm
SAN
-
LIS
21h 04m
2 stops
Lufthansa Logo
6:10 am - 3:45 pm
LIS
-
SAN
17h 35m
1 stop
$746Lufthansa
Wed, Nov 11 - Wed, Nov 18
Delta Logo
3:05 pm - 3:25 pm
SAN
-
OPO
17h 20m
1 stop
Delta Logo
5:00 am - 12:10 pm
OPO
-
SAN
15h 10m
1 stop
$746Delta
Tue, Oct 27 - Tue, Nov 3
KLM Logo
1:40 pm - 6:45 pm
SAN
-
LIS
21h 05m
1 stop
KLM Logo
5:00 am - 12:10 pm
LIS
-
SAN
15h 10m
1 stop
$748KLM
Tue, Oct 13 - Thu, Nov 5
Delta Logo
9:45 pm - 8:00 am
SAN
-
LIS
26h 15m
2 stops
Delta Logo
5:00 am - 12:10 pm
LIS
-
SAN
15h 10m
1 stop
$749Delta
Mon, Oct 12 - Thu, Nov 5
Multiple Airlines Logo
6:00 pm - 5:45 pm
SAN
-
LIS
15h 45m
1 stop
Multiple Airlines Logo
8:45 pm - 8:34 am
LIS
-
SAN
19h 49m
2 stops
$750Multiple Airlines
Sun, Nov 1 - Mon, Nov 16
United Airlines Logo
7:00 am - 8:10 am
SAN
-
LIS
17h 10m
1 stop
United Airlines Logo
5:00 am - 8:37 pm
LIS
-
SAN
23h 37m
3 stops
$753United Airlines
Wed, Nov 11 - Wed, Nov 18
Air Canada Logo
6:15 am - 11:05 am
SAN
-
LIS
20h 50m
2 stops
Air Canada Logo
8:55 am - 6:34 pm
LIS
-
SAN
41h 39m
2 stops
$754Air Canada
Wed, Oct 14 - Thu, Nov 5
British Airways Logo
4:45 pm - 4:55 pm
SAN
-
FAO
16h 10m
1 stop
British Airways Logo
8:00 pm - 2:55 pm
FAO
-
SAN
26h 55m
1 stop
$1,042British Airways
Sat, Oct 10 - Fri, Oct 16
United Airlines Logo
8:00 am - 11:20 am
SAN
-
FAO
19h 20m
2 stops
United Airlines Logo
3:20 pm - 8:45 pm
FAO
-
SAN
37h 25m
3 stops
$1,081United Airlines
Fri, Aug 21 - Fri, Aug 28

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SWISS flights from San Diego to Portugal

Our best SWISS deals on San Diego to Portugal flight tickets
SWISS
Oct 14
SAN3:56 pmSan Diego
23h 29m
2 stops
LIS11:25 pmLisbon Humberto Delgado
Nov 3
LIS12:35 pmLisbon Humberto Delgado
40h 02m
2 stops
SAN8:37 pmSan Diego
$764
SWISS
Aug 17
SAN1:24 pmSan Diego
38h 01m
2 stops
OPO11:25 amPorto
Aug 31
OPO7:20 pmPorto
33h 25m
2 stops
SAN8:45 pmSan Diego
$861
SWISS
Jul 11
SAN1:39 pmSan Diego
26h 31m
2 stops
OPO12:10 amPorto
Jul 23
OPO3:00 amPorto
27h 34m
2 stops
SAN10:34 pmSan Diego
$1,128

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
15h 45m
1 stop
LIS5:45 pmLisbon Humberto Delgado
Nov 12
LIS11:05 amLisbon Humberto Delgado
15h 48m
1 stop
SAN6:53 pmSan Diego
$758
British Airways
Oct 14
SAN4:45 pmSan Diego
14h 55m
1 stop
LIS3:40 pmLisbon Humberto Delgado
Nov 2
LIS12:55 pmLisbon Humberto Delgado
35h 15m
1 stop
SAN4:10 pmSan Diego
$782
British Airways
Oct 14
SAN4:45 pmSan Diego
14h 55m
1 stop
LIS3:40 pmLisbon Humberto Delgado
Nov 2
LIS12:55 pmLisbon Humberto Delgado
35h 15m
1 stop
SAN4:10 pmSan Diego
$783

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 July 2, 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

Wed 11/11

7:00 am-8:00 am

1 stop17h 00m

Lisbon Humberto Delgado

Wed 11/18

3:35 pm-12:10 pm

1 stop28h 35m

$744

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Wed 11/11

6:26 pm-11:30 pm

2 stops21h 04m

Lisbon Humberto Delgado

Wed 11/18

6:10 am-3:45 pm

1 stop17h 35m

$746
Quickest round-trip

San DiegoPorto

SAN - OPO

SANOPO

San Diego

Tue 10/27

3:05 pm-3:25 pm

1 stop17h 20m

Porto

Tue 11/3

5:00 am-12:10 pm

1 stop15h 10m

$746

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Tue 10/13

1:40 pm-6:45 pm

1 stop21h 05m

Lisbon Humberto Delgado

Thu 11/5

5:00 am-12:10 pm

1 stop15h 10m

$748

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Mon 10/12

9:45 pm-8:00 am

2 stops26h 15m

Lisbon Humberto Delgado

Thu 11/5

5:00 am-12:10 pm

1 stop15h 10m

$749

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Sun 11/1

6:00 pm-5:45 pm

1 stop15h 45m

Lisbon Humberto Delgado

Mon 11/16

8:45 pm-8:34 am

2 stops19h 49m

$750

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Wed 11/11

7:00 am-8:10 am

1 stop17h 10m

Lisbon Humberto Delgado

Wed 11/18

5:00 am-8:37 pm

3 stops23h 37m

$753

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Wed 10/14

6:15 am-11:05 am

2 stops20h 50m

Lisbon Humberto Delgado

Thu 11/5

8:55 am-6:34 pm

2 stops41h 39m

$754

San DiegoFaro

SAN - FAO

SANFAO

San Diego

Sat 10/10

4:45 pm-4:55 pm

1 stop16h 10m

Faro

Fri 10/16

8:00 pm-2:55 pm

1 stop26h 55m

$1,042

San DiegoFaro

SAN - FAO

SANFAO

San Diego

Fri 8/21

8:00 am-11:20 am

2 stops19h 20m

Faro

Fri 8/28

3:20 pm-8:45 pm

3 stops37h 25m

$1,081

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 $790 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 $693 on momondo.

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

You could potentially save up to 16% 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

13h 15m

Direct flights

None
The fastest flight from San Diego to Portugal takes 13h 15m
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
KLMPriceFrom $491Free CancellationRating
7.8
1,532 reviews
Search KLM flights
American AirlinesPriceFrom $505Free CancellationRating
7.1
11,771 reviews
Search American Airlines flights
British AirwaysPriceFrom $508Free CancellationRating
6.7
8,087 reviews
Search British Airways flights
United AirlinesPriceFrom $509Free CancellationRating
7.4
9,925 reviews
Search United Airlines flights
LufthansaPriceFrom $520Free CancellationRating
6.8
8,107 reviews
Search Lufthansa flights
DeltaPriceFrom $552Free CancellationRating
7.8
8,452 reviews
Search Delta flights
Air CanadaPriceFrom $589Free CancellationRating
7.1
11,286 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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