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Cheap flights from San Diego to Portugal from $366

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 8/16. 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.
Multiple Airlines Logo
4:45 pm - 11:10 pm
SAN
-
LIS
22h 25m
1 stop
Multiple Airlines Logo
8:25 am - 8:43 pm
LIS
-
SAN
20h 18m
2 stops
$712Multiple Airlines
Mon, Apr 20 - Tue, May 5
Multiple Airlines Logo
4:45 pm - 11:10 pm
SAN
-
LIS
22h 25m
1 stop
Multiple Airlines Logo
12:30 pm - 11:59 pm
LIS
-
SAN
19h 29m
2 stops
$714Multiple Airlines
Mon, Apr 20 - Wed, May 6
Delta Logo
6:25 am - 10:55 am
SAN
-
LIS
20h 30m
2 stops
Delta Logo
5:00 am - 3:55 pm
LIS
-
SAN
18h 55m
2 stops
$725Delta
Mon, Apr 20 - Tue, May 5
British Airways Logo
4:45 pm - 10:05 am
SAN
-
LIS
33h 20m
1 stop
British Airways Logo
4:25 pm - 5:50 pm
LIS
-
SAN
33h 25m
1 stop
$731British Airways
Mon, Apr 20 - Wed, May 6
KLM Logo
7:15 am - 8:00 am
SAN
-
LIS
16h 45m
1 stop
KLM Logo
5:00 am - 11:50 am
LIS
-
SAN
14h 50m
1 stop
$737KLM
Tue, May 5 - Tue, May 12
Delta Logo
3:15 pm - 5:50 pm
SAN
-
LIS
18h 35m
2 stops
Delta Logo
5:00 am - 11:50 am
LIS
-
SAN
14h 50m
1 stop
$741Delta
Tue, May 5 - Tue, May 12
British Airways Logo
4:45 pm - 11:05 pm
SAN
-
LIS
22h 20m
1 stop
British Airways Logo
7:20 am - 5:50 pm
LIS
-
SAN
18h 30m
1 stop
$744British Airways
Thu, May 7 - Thu, May 14
KLM Logo
10:25 pm - 8:00 am
SAN
-
LIS
25h 35m
1 stop
KLM Logo
5:00 am - 11:50 am
LIS
-
SAN
14h 50m
1 stop
$748KLM
Mon, May 4 - Thu, May 21
United Airlines Logo
6:35 am - 6:55 am
SAN
-
OPO
16h 20m
1 stop
United Airlines Logo
12:35 pm - 7:53 pm
OPO
-
SAN
15h 18m
1 stop
$844United Airlines
Mon, Aug 17 - Wed, Sep 2
United Airlines Logo
10:55 am - 8:40 am
SAN
-
PDL
14h 45m
2 stops
United Airlines Logo
11:00 am - 7:53 pm
PDL
-
SAN
15h 53m
1 stop
$1,416United Airlines
Wed, Aug 5 - Fri, Aug 14

KLM flights from San Diego to Portugal

Our best KLM deals on San Diego to Portugal flight tickets
KLM
May 5
SAN7:15 amSan Diego
16h 45m
1 stop
LIS8:00 amLisbon Humberto Delgado
May 12
LIS5:00 amLisbon Humberto Delgado
14h 50m
1 stop
SAN11:50 amSan Diego
$737
KLM
May 4
SAN10:25 pmSan Diego
25h 35m
1 stop
LIS8:00 amLisbon Humberto Delgado
May 21
LIS5:00 amLisbon Humberto Delgado
14h 50m
1 stop
SAN11:50 amSan Diego
$748
KLM
Apr 9
SAN1:40 pmSan Diego
21h 05m
1 stop
LIS6:45 pmLisbon Humberto Delgado
Apr 20
LIS7:45 pmLisbon Humberto Delgado
24h 05m
1 stop
SAN11:50 amSan Diego
$760

British Airways flights from San Diego to Portugal

Our best British Airways deals on San Diego to Portugal flight tickets
British Airways
Apr 20
SAN4:45 pmSan Diego
33h 20m
1 stop
LIS10:05 amLisbon Humberto Delgado
May 6
LIS4:25 pmLisbon Humberto Delgado
33h 25m
1 stop
SAN5:50 pmSan Diego
$731
British Airways
May 7
SAN4:45 pmSan Diego
22h 20m
1 stop
LIS11:05 pmLisbon Humberto Delgado
May 14
LIS6:45 pmLisbon Humberto Delgado
28h 10m
1 stop
SAN2:55 pmSan Diego
$744
British Airways
Apr 20
SAN9:05 amSan Diego
16h 00m
1 stop
LIS9:05 amLisbon Humberto Delgado
May 1
LIS11:05 amLisbon Humberto Delgado
19h 44m
1 stop
SAN10:49 pmSan Diego
$756

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 April 9, 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

Mon 4/20

4:45 pm-11:10 pm

1 stop22h 25m

Lisbon Humberto Delgado

Tue 5/5

8:25 am-8:43 pm

2 stops20h 18m

$712

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Mon 4/20

4:45 pm-11:10 pm

1 stop22h 25m

Lisbon Humberto Delgado

Wed 5/6

12:30 pm-11:59 pm

2 stops19h 29m

$714

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Mon 4/20

6:25 am-10:55 am

2 stops20h 30m

Lisbon Humberto Delgado

Tue 5/5

5:00 am-3:55 pm

2 stops18h 55m

$725

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Mon 4/20

4:45 pm-10:05 am

1 stop33h 20m

Lisbon Humberto Delgado

Wed 5/6

4:25 pm-5:50 pm

1 stop33h 25m

$731

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Tue 5/5

7:15 am-8:00 am

1 stop16h 45m

Lisbon Humberto Delgado

Tue 5/12

5:00 am-11:50 am

1 stop14h 50m

$737

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Tue 5/5

3:15 pm-5:50 pm

2 stops18h 35m

Lisbon Humberto Delgado

Tue 5/12

5:00 am-11:50 am

1 stop14h 50m

$741

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Thu 5/7

4:45 pm-11:05 pm

1 stop22h 20m

Lisbon Humberto Delgado

Thu 5/14

7:20 am-5:50 pm

1 stop18h 30m

$744

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Mon 5/4

10:25 pm-8:00 am

1 stop25h 35m

Lisbon Humberto Delgado

Thu 5/21

5:00 am-11:50 am

1 stop14h 50m

$748

San DiegoPorto

SAN - OPO

SANOPO

San Diego

Mon 8/17

6:35 am-6:55 am

1 stop16h 20m

Porto

Wed 9/2

12:35 pm-7:53 pm

1 stop15h 18m

$844
Quickest round-trip

San DiegoPonta Delgada

SAN - PDL

SANPDL

San Diego

Wed 8/5

10:55 am-8:40 am

2 stops14h 45m

Ponta Delgada Nordela

Fri 8/14

11:00 am-7:53 pm

1 stop15h 53m

$1,416

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 January. Flight prices, which tend to average around $604, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of January, then book flights to Portugal from San Diego during February instead. Flights to Portugal in February, while not as cheap as those in January, still average around $604.

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 $757 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 $599 on momondo.

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

You could potentially save up to 34% 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

14h 55m

Direct flights

None
The fastest flight from San Diego to Portugal takes 14h 55m
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
8,388 reviews
Search Delta flights
KLMPriceFrom $490Free CancellationRating
7.7
1,492 reviews
Search KLM flights
IberiaPriceFrom $506Free CancellationRating
7.0
3,169 reviews
Search Iberia flights
LufthansaPriceFrom $520Free CancellationRating
6.8
7,898 reviews
Search Lufthansa flights
British AirwaysPriceFrom $523Free CancellationRating
6.7
7,862 reviews
Search British Airways flights
United AirlinesPriceFrom $536Free CancellationRating
7.4
9,547 reviews
Search United Airlines flights
American AirlinesPriceFrom $555Free CancellationRating
7.1
11,551 reviews
Search American Airlines flights
Air CanadaPriceFrom $590Free CancellationRating
7.1
10,903 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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