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Cheap flights from San Diego to Portugal from $274

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 1/26. 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.
Lufthansa Logo
9:55 am - 11:30 pm
SAN
-
LIS
29h 35m
2 stops
Lufthansa Logo
2:10 pm - 3:45 pm
LIS
-
SAN
33h 35m
1 stop
$426Lufthansa
mar., feb. 10 - jue., feb. 19
Lufthansa Logo
5:35 pm - 11:30 pm
SAN
-
LIS
21h 55m
1 stop
Lufthansa Logo
6:10 am - 3:45 pm
LIS
-
SAN
17h 35m
1 stop
$431Lufthansa
dom., feb. 1 - vie., feb. 13
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
$440Lufthansa
mar., mar. 10 - mar., mar. 17
United Airlines Logo
9:45 pm - 10:30 am
SAN
-
LIS
28h 45m
1 stop
United Airlines Logo
1:00 pm - 12:18 pm
LIS
-
SAN
31h 18m
1 stop
$444United Airlines
dom., abr. 26 - jue., may. 7
United Airlines Logo
10:00 pm - 8:10 am
SAN
-
LIS
26h 10m
2 stops
United Airlines Logo
10:55 am - 11:40 pm
LIS
-
SAN
44h 45m
2 stops
$446United Airlines
dom., feb. 1 - vie., feb. 13
British Airways Logo
7:40 pm - 11:00 pm
SAN
-
LIS
19h 20m
1 stop
British Airways Logo
7:20 am - 2:55 pm
LIS
-
SAN
15h 35m
1 stop
$451British Airways
mar., abr. 7 - mié., abr. 22
Air Canada Logo
6:10 pm - 11:05 am
SAN
-
LIS
32h 55m
2 stops
Air Canada Logo
11:25 am - 11:50 am
LIS
-
SAN
32h 25m
2 stops
$454Air Canada
mar., abr. 21 - jue., may. 7
British Airways Logo
9:28 am - 10:05 am
SAN
-
LIS
40h 37m
2 stops
British Airways Logo
6:45 pm - 2:55 pm
LIS
-
SAN
28h 10m
1 stop
$455British Airways
mar., abr. 7 - mié., abr. 22
Delta Logo
3:15 pm - 10:05 pm
SAN
-
OPO
22h 50m
2 stops
Delta Logo
5:00 am - 11:50 am
OPO
-
SAN
14h 50m
1 stop
$470Delta
mar., abr. 14 - mar., abr. 28
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
$471Delta
mié., feb. 18 - lun., mar. 2

Lufthansa flights from San Diego to Portugal

Our best Lufthansa deals on San Diego to Portugal flight tickets
Lufthansa
Feb 10
SAN9:55 amSan Diego
29h 35m
2 stops
LIS11:30 pmLisbon Humberto Delgado
Feb 19
LIS2:10 pmLisbon Humberto Delgado
33h 35m
1 stop
SAN3:45 pmSan Diego
$426
Lufthansa
Feb 10
SAN6:00 pmSan Diego
21h 30m
2 stops
LIS11:30 pmLisbon Humberto Delgado
Feb 19
LIS2:10 pmLisbon Humberto Delgado
33h 35m
1 stop
SAN3:45 pmSan Diego
$428
Lufthansa
Feb 24
SAN11:57 amSan Diego
27h 33m
2 stops
LIS11:30 pmLisbon Humberto Delgado
Mar 17
LIS6:10 amLisbon Humberto Delgado
17h 35m
1 stop
SAN4:45 pmSan Diego
$430

United Airlines flights from San Diego to Portugal

Our best United Airlines deals on San Diego to Portugal flight tickets
United Airlines
Apr 26
SAN9:45 pmSan Diego
28h 45m
1 stop
LIS10:30 amLisbon Humberto Delgado
May 7
LIS1:00 pmLisbon Humberto Delgado
31h 18m
1 stop
SAN12:18 pmSan Diego
$444
United Airlines
Feb 1
SAN10:00 pmSan Diego
26h 10m
2 stops
LIS8:10 amLisbon Humberto Delgado
Feb 13
LIS10:55 amLisbon Humberto Delgado
44h 45m
2 stops
SAN11:40 pmSan Diego
$446
United Airlines
Feb 24
SAN7:50 pmSan Diego
29h 40m
3 stops
OPO9:30 amPorto
Mar 3
OPO12:35 pmPorto
16h 50m
1 stop
SAN9:25 pmSan Diego
$450

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 enero 12, 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

mar. 2/10

9:55 am-11:30 pm

2 stops29h 35m

Lisbon Humberto Delgado

jue. 2/19

2:10 pm-3:45 pm

1 stop33h 35m

$426

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

dom. 2/1

5:35 pm-11:30 pm

1 stop21h 55m

Lisbon Humberto Delgado

vie. 2/13

6:10 am-3:45 pm

1 stop17h 35m

$431

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

mar. 3/10

6:35 pm-11:30 pm

1 stop21h 55m

Lisbon Humberto Delgado

mar. 3/17

6:10 am-4:45 pm

1 stop17h 35m

$440

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

dom. 4/26

9:45 pm-10:30 am

1 stop28h 45m

Lisbon Humberto Delgado

jue. 5/7

1:00 pm-12:18 pm

1 stop31h 18m

$444

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

dom. 2/1

10:00 pm-8:10 am

2 stops26h 10m

Lisbon Humberto Delgado

vie. 2/13

10:55 am-11:40 pm

2 stops44h 45m

$446

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

mar. 4/7

7:40 pm-11:00 pm

1 stop19h 20m

Lisbon Humberto Delgado

mié. 4/22

7:20 am-2:55 pm

1 stop15h 35m

$451

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

mar. 4/21

6:10 pm-11:05 am

2 stops32h 55m

Lisbon Humberto Delgado

jue. 5/7

11:25 am-11:50 am

2 stops32h 25m

$454

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

mar. 4/7

9:28 am-10:05 am

2 stops40h 37m

Lisbon Humberto Delgado

mié. 4/22

6:45 pm-2:55 pm

1 stop28h 10m

$455

San DiegoPorto

SAN - OPO

SANOPO

San Diego

mar. 4/14

3:15 pm-10:05 pm

2 stops22h 50m

Porto

mar. 4/28

5:00 am-11:50 am

1 stop14h 50m

$470

San DiegoPorto

SAN - OPO

SANOPO

San Diego

mié. 2/18

7:00 am-10:30 am

2 stops19h 30m

Porto

lun. 3/2

11:15 am-12:05 pm

1 stop32h 50m

$471

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 $626, 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 January instead. Flights to Portugal in January, while not as cheap as those in February, still average around $631.

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 $807 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 30% 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
1,437 reviews
Search KLM flights
IberiaPriceFrom $506Free CancellationRating
7.0
3,084 reviews
Search Iberia flights
LufthansaPriceFrom $549Free CancellationRating
6.8
7,709 reviews
Search Lufthansa flights
American AirlinesPriceFrom $555Free CancellationRating
7.2
11,114 reviews
Search American Airlines flights
DeltaPriceFrom $561Free CancellationRating
7.9
8,039 reviews
Search Delta flights
Virgin AtlanticPriceFrom $565Free CancellationRating
7.5
678 reviews
Search Virgin Atlantic flights
British AirwaysPriceFrom $567Free CancellationRating
6.7
7,665 reviews
Search British Airways flights
United AirlinesPriceFrom $572Free CancellationRating
7.4
9,149 reviews
Search United Airlines flights
Air CanadaPriceFrom $601Free CancellationRating
7.1
10,618 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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1 adult
mié. 2/11
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