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Cheap flights from San Diego to Portugal from $289

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 1/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
10:52 am - 11:15 amSAN-OPO
40h 23m2 stops
Multiple Airlines Logo
12:30 pm - 11:05 pmOPO-SAN
18h 35m2 stops
$484Multiple Airlines
Find Deal
Mon, Jan 12 - Fri, Jan 23
Air Canada Logo
4:47 pm - 9:20 amSAN-LIS
56h 33m2 stops
Air Canada Logo
11:20 am - 3:36 pmLIS-SAN
36h 16m2 stops
$501Air Canada
Find Deal
Fri, Jan 9 - Fri, Jan 23
United Airlines Logo
6:15 am - 2:55 pmSAN-OPO
24h 40m3 stops
United Airlines Logo
12:30 pm - 6:44 pmOPO-SAN
38h 14m2 stops
$503United Airlines
Find Deal
Mon, Jan 12 - Fri, Jan 23
Lufthansa Logo
9:55 am - 1:20 pmSAN-LIS
19h 25m2 stops
Lufthansa Logo
2:10 pm - 3:45 pmLIS-SAN
33h 35m1 stop
$503Lufthansa
Find Deal
Mon, Jan 12 - Sat, Jan 24
British Airways Logo
1:27 pm - 11:00 pmSAN-LIS
25h 33m2 stops
British Airways Logo
11:05 am - 9:33 pmLIS-SAN
18h 28m1 stop
$505British Airways
Find Deal
Tue, Apr 7 - Thu, Apr 23
British Airways Logo
12:48 pm - 3:30 pmSAN-LIS
18h 42m2 stops
British Airways Logo
11:05 am - 9:33 pmLIS-SAN
18h 28m1 stop
$506British Airways
Find Deal
Tue, Apr 7 - Thu, Apr 23
Delta Logo
1:35 pm - 8:00 amSAN-LIS
34h 25m1 stop
Delta Logo
5:30 am - 12:05 amLIS-SAN
26h 35m2 stops
$507Delta
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Thu, Jan 15 - Sun, Jan 25
Delta Logo
10:15 pm - 11:20 amSAN-LIS
29h 05m2 stops
Delta Logo
10:00 am - 8:22 pmLIS-SAN
18h 22m1 stop
$509Delta
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Sun, Jan 11 - Thu, Jan 22
United Airlines Logo
12:50 pm - 10:15 amSAN-LIS
13h 25m1 stop
United Airlines Logo
11:55 am - 9:44 amLIS-SAN
29h 49m2 stops
$510United Airlines
Find Deal
Thu, Dec 11 - Thu, Dec 18
Lufthansa Logo
11:10 am - 12:50 pmSAN-OPO
17h 40m2 stops
Lufthansa Logo
12:30 pm - 9:56 pmOPO-SAN
41h 26m2 stops
$511Lufthansa
Find Deal
Thu, Jan 8 - Wed, Jan 14

Air Canada flights from San Diego to Portugal

Our best Air Canada deals on San Diego to Portugal flight tickets
Air Canada
Jan 9
SAN4:47 pmSan Diego
56h 33m
2 stops
LIS9:20 amLisbon Humberto Delgado
Jan 23
LIS11:20 amLisbon Humberto Delgado
36h 16m
2 stops
SAN3:36 pmSan Diego
$501
Find similar
Air Canada
Jan 12
SAN2:11 pmSan Diego
35h 09m
2 stops
LIS9:20 amLisbon Humberto Delgado
Jan 21
LIS11:20 amLisbon Humberto Delgado
32h 33m
1 stop
SAN11:53 amSan Diego
$502
Find similar
Air Canada
Jan 9
SAN12:40 pmSan Diego
36h 15m
2 stops
LIS8:55 amLisbon Humberto Delgado
Jan 21
LIS11:20 amLisbon Humberto Delgado
32h 33m
1 stop
SAN11:53 amSan Diego
$504
Find similar

British Airways flights from San Diego to Portugal

Our best British Airways deals on San Diego to Portugal flight tickets
British Airways
Apr 7
SAN1:27 pmSan Diego
25h 33m
2 stops
LIS11:00 pmLisbon Humberto Delgado
Apr 23
LIS11:05 amLisbon Humberto Delgado
18h 28m
1 stop
SAN9:33 pmSan Diego
$505
Find similar
British Airways
Apr 7
SAN12:48 pmSan Diego
18h 42m
2 stops
LIS3:30 pmLisbon Humberto Delgado
Apr 23
LIS11:05 amLisbon Humberto Delgado
18h 28m
1 stop
SAN9:33 pmSan Diego
$506
Find similar
British Airways
Apr 7
SAN1:27 pmSan Diego
25h 33m
2 stops
LIS11:00 pmLisbon Humberto Delgado
Apr 22
LIS6:40 pmLisbon Humberto Delgado
36h 29m
2 stops
SAN11:09 pmSan Diego
$517
Find similar

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 November 29, 2025.
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

San DiegoPorto

SAN - OPO

SANOPO

San Diego

Mon 1/12

10:52 am-11:15 am

2 stops40h 23m

Porto

Fri 1/23

12:30 pm-11:05 pm

2 stops18h 35m

$484

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Fri 1/9

4:47 pm-9:20 am

2 stops56h 33m

Lisbon Humberto Delgado

Fri 1/23

11:20 am-3:36 pm

2 stops36h 16m

$501

San DiegoPorto

SAN - OPO

SANOPO

San Diego

Mon 1/12

6:15 am-2:55 pm

3 stops24h 40m

Porto

Fri 1/23

12:30 pm-6:44 pm

2 stops38h 14m

$503

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Mon 1/12

9:55 am-1:20 pm

2 stops19h 25m

Lisbon Humberto Delgado

Sat 1/24

2:10 pm-3:45 pm

1 stop33h 35m

$503

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Tue 4/7

1:27 pm-11:00 pm

2 stops25h 33m

Lisbon Humberto Delgado

Thu 4/23

11:05 am-9:33 pm

1 stop18h 28m

$505

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Tue 4/7

12:48 pm-3:30 pm

2 stops18h 42m

Lisbon Humberto Delgado

Thu 4/23

11:05 am-9:33 pm

1 stop18h 28m

$506

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Thu 1/15

1:35 pm-8:00 am

1 stop34h 25m

Lisbon Humberto Delgado

Sun 1/25

5:30 am-12:05 am

2 stops26h 35m

$507

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Sun 1/11

10:15 pm-11:20 am

2 stops29h 05m

Lisbon Humberto Delgado

Thu 1/22

10:00 am-8:22 pm

1 stop18h 22m

$509

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Thu 12/11

12:50 pm-10:15 am

1 stop13h 25m

Lisbon Humberto Delgado

Thu 12/18

11:55 am-9:44 am

2 stops29h 49m

$510

San DiegoPorto

SAN - OPO

SANOPO

San Diego

Thu 1/8

11:10 am-12:50 pm

2 stops17h 40m

Porto

Wed 1/14

12:30 pm-9:56 pm

2 stops41h 26m

$511

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 November. Flight prices, which tend to average around $661, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of November, then book flights to Portugal from San Diego during February instead. Flights to Portugal in February, while not as cheap as those in November, still average around $719.

What is the cheapest day to depart on your flight to Portugal?

According to our data, Wednesday is the cheapest day to fly to Portugal from San Diego. The lowest ticket price found for a Wednesday departure recently was $878. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. The most expensive day to fly to Portugal is Friday, with ticket prices averaging around $1,214.

What is the cheapest time of day to depart on your flight to Portugal?

Our most recent data shows that the best time of day to fly to Portugal is at noon. Flights from San Diego to Portugal during this time can be as low as $888. In the morning is when there is more demand to fly to Portugal, so prices are often more expensive at around $1,071 per ticket.

How far in advance should I book a flight 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 $921 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 $737 on momondo.

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

You could potentially save up to 2% 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 19m

Direct flights

None
The fastest flight from San Diego to Portugal takes 13h 19m
There are no direct flights from San Diego to Portugal. There are no popular flight routes from San Diego to Portugal.
Search flight deals

  • 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
LufthansaPriceFrom $549Free CancellationRating
6.8
7,597 reviews
Search Lufthansa flights
IberiaPriceFrom $565Free CancellationRating
7.0
3,035 reviews
Search Iberia flights
Virgin AtlanticPriceFrom $565Free CancellationRating
7.5
675 reviews
Search Virgin Atlantic flights
DeltaPriceFrom $586Free CancellationRating
7.9
8,011 reviews
Search Delta flights
United AirlinesPriceFrom $599Free CancellationRating
7.4
9,056 reviews
Search United Airlines flights
British AirwaysPriceFrom $601Free CancellationRating
6.7
7,544 reviews
Search British Airways flights
American AirlinesPriceFrom $621Free CancellationRating
7.2
11,043 reviews
Search American Airlines flights
KLMPriceFrom $626Free CancellationRating
7.7
1,423 reviews
Search KLM flights
Air CanadaPriceFrom $638Free CancellationRating
7.1
10,484 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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