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Cheap flights from San Diego to Portugal from $276

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 5/6. 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 San Diego to Portugal

Cheap round-trip flights

Enter your travel dates to find the best prices.
Lufthansa Logo
6:35 pm - 11:30 pm
SAN
-
LIS
21h 55m
1 stop
Lufthansa Logo
6:10 am - 4:45 pm
LIS
-
SAN
17h 35m
1 stop
$448Lufthansa
Thu, Mar 12 - Tue, Mar 17
Lufthansa Logo
6:35 pm - 11:30 pm
SAN
-
LIS
21h 55m
1 stop
Lufthansa Logo
6:10 am - 4:45 pm
LIS
-
SAN
17h 35m
1 stop
$449Lufthansa
Tue, Mar 10 - Thu, Mar 19
KLM Logo
1:40 pm - 6:20 pm
SAN
-
OPO
20h 40m
1 stop
KLM Logo
4:20 pm - 11:50 am
OPO
-
SAN
27h 30m
1 stop
$483KLM
Tue, Apr 14 - Mon, Apr 20
Delta Logo
7:00 am - 10:30 am
SAN
-
OPO
19h 30m
2 stops
Delta Logo
11:15 am - 12:05 pm
OPO
-
SAN
32h 50m
1 stop
$484Delta
Tue, Feb 24 - Fri, Mar 6
Delta Logo
2:00 pm - 10:30 am
SAN
-
OPO
36h 30m
1 stop
Delta Logo
5:00 am - 1:05 pm
OPO
-
SAN
15h 05m
1 stop
$485Delta
Thu, Mar 5 - Tue, Mar 17
KLM Logo
10:59 am - 7:20 pm
SAN
-
FAO
24h 21m
2 stops
KLM Logo
7:15 pm - 12:05 pm
FAO
-
SAN
24h 50m
1 stop
$486KLM
Thu, Feb 26 - Mon, Mar 2
United Airlines Logo
1:40 pm - 9:30 am
SAN
-
OPO
12h 50m
1 stop
United Airlines Logo
12:30 pm - 10:40 am
OPO
-
SAN
29h 10m
2 stops
$487United Airlines
Mon, Mar 9 - Tue, Mar 24
United Airlines Logo
6:10 pm - 8:10 am
SAN
-
LIS
30h 00m
2 stops
United Airlines Logo
5:00 am - 7:48 pm
LIS
-
SAN
21h 48m
2 stops
$491United Airlines
Mon, Feb 23 - Tue, Mar 10
British Airways Logo
12:45 pm - 7:05 pm
SAN
-
FAO
22h 20m
2 stops
British Airways Logo
8:00 pm - 10:00 pm
FAO
-
SAN
34h 00m
2 stops
$667British Airways
Wed, Apr 1 - Wed, Apr 8
British Airways Logo
1:32 pm - 4:45 pm
SAN
-
FAO
19h 13m
2 stops
British Airways Logo
7:05 pm - 4:10 pm
FAO
-
SAN
29h 05m
1 stop
$799British Airways
Thu, Feb 26 - Mon, Mar 2

British Airways flights from San Diego to Portugal

Our best British Airways deals on San Diego to Portugal flight tickets
British Airways
Feb 23
SAN1:09 pmSan Diego
24h 46m
2 stops
LIS9:55 pmLisbon Humberto Delgado
Mar 2
LIS11:05 amLisbon Humberto Delgado
18h 54m
1 stop
SAN9:59 pmSan Diego
$495
British Airways
Mar 3
SAN6:30 amSan Diego
18h 35m
1 stop
LIS9:05 amLisbon Humberto Delgado
Mar 13
LIS11:05 amLisbon Humberto Delgado
18h 01m
1 stop
SAN10:06 pmSan Diego
$497
British Airways
Apr 17
SAN3:21 pmSan Diego
23h 49m
2 stops
LIS11:10 pmLisbon Humberto Delgado
Apr 25
LIS6:55 pmLisbon Humberto Delgado
28h 00m
1 stop
SAN2:55 pmSan Diego
$505

Air Canada flights from San Diego to Portugal

Our best Air Canada deals on San Diego to Portugal flight tickets
Air Canada
Apr 20
SAN12:45 pmSan Diego
36h 35m
2 stops
LIS9:20 amLisbon Humberto Delgado
May 13
LIS11:25 amLisbon Humberto Delgado
32h 25m
2 stops
SAN11:50 amSan Diego
$530
Air Canada
Jun 22
SAN12:30 pmSan Diego
20h 50m
2 stops
FAO5:20 pmFaro
Jul 4
FAO6:05 amFaro
36h 06m
3 stops
SAN10:11 amSan Diego
$1,891
Air Canada
Feb 26
SAN6:30 amSan Diego
19h 55m
3 stops
FAO10:25 amFaro
Mar 2
FAO6:05 amFaro
37h 48m
2 stops
SAN11:53 amSan Diego
$2,447

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 January 27, 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

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Thu 3/12

6:35 pm-11:30 pm

1 stop21h 55m

Lisbon Humberto Delgado

Tue 3/17

6:10 am-4:45 pm

1 stop17h 35m

$448

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Tue 3/10

6:35 pm-11:30 pm

1 stop21h 55m

Lisbon Humberto Delgado

Thu 3/19

6:10 am-4:45 pm

1 stop17h 35m

$449

San DiegoPorto

SAN - OPO

SANOPO

San Diego

Tue 4/14

1:40 pm-6:20 pm

1 stop20h 40m

Porto

Mon 4/20

4:20 pm-11:50 am

1 stop27h 30m

$483

San DiegoPorto

SAN - OPO

SANOPO

San Diego

Tue 2/24

7:00 am-10:30 am

2 stops19h 30m

Porto

Fri 3/6

11:15 am-12:05 pm

1 stop32h 50m

$484

San DiegoPorto

SAN - OPO

SANOPO

San Diego

Thu 3/5

2:00 pm-10:30 am

1 stop36h 30m

Porto

Tue 3/17

5:00 am-1:05 pm

1 stop15h 05m

$485

San DiegoFaro

SAN - FAO

SANFAO

San Diego

Thu 2/26

10:59 am-7:20 pm

2 stops24h 21m

Faro

Mon 3/2

7:15 pm-12:05 pm

1 stop24h 50m

$486

San DiegoPorto

SAN - OPO

SANOPO

San Diego

Mon 3/9

1:40 pm-9:30 am

1 stop12h 50m

Porto

Tue 3/24

12:30 pm-10:40 am

2 stops29h 10m

$487

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Mon 2/23

6:10 pm-8:10 am

2 stops30h 00m

Lisbon Humberto Delgado

Tue 3/10

5:00 am-7:48 pm

2 stops21h 48m

$491

San DiegoFaro

SAN - FAO

SANFAO

San Diego

Wed 4/1

12:45 pm-7:05 pm

2 stops22h 20m

Faro

Wed 4/8

8:00 pm-10:00 pm

2 stops34h 00m

$667

San DiegoFaro

SAN - FAO

SANFAO

San Diego

Thu 2/26

1:32 pm-4:45 pm

2 stops19h 13m

Faro

Mon 3/2

7:05 pm-4:10 pm

1 stop29h 05m

$799

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 February. Flight prices, which tend to average around $625, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of February, then book flights to Portugal from San Diego during November instead. Flights to Portugal in November, while not as cheap as those in February, still average around $641.

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 $806 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 $679 on momondo.

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

You could potentially save up to 3% 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 35m

Direct flights

None
The fastest flight from San Diego to Portugal takes 15h 35m
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
KLMPriceFrom $490Free CancellationRating
7.7
1,443 reviews
Search KLM flights
IberiaPriceFrom $506Free CancellationRating
7.0
3,099 reviews
Search Iberia flights
LufthansaPriceFrom $534Free CancellationRating
6.8
7,749 reviews
Search Lufthansa flights
British AirwaysPriceFrom $544Free CancellationRating
6.7
7,702 reviews
Search British Airways flights
American AirlinesPriceFrom $555Free CancellationRating
7.2
11,198 reviews
Search American Airlines flights
DeltaPriceFrom $555Free CancellationRating
7.9
8,121 reviews
Search Delta flights
United AirlinesPriceFrom $564Free CancellationRating
7.4
9,207 reviews
Search United Airlines flights
Air CanadaPriceFrom $601Free CancellationRating
7.1
10,660 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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