What airlines fly to Portugal?

United Airlines, British Airways and Delta are the top three most popular airlines that fly to Portugal from San Diego according to our data. United Airlines is the first choice among our users, with 44% of people opting to fly with this airline when traveling to Portugal. Keep in mind that there are 9 different airlines that fly to Portugal on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from San Diego to Portugal?

Delta, American Airlines, and KLM are the most popular carriers operating 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?

There are 9 operators available for flights from San Diego Airport to Portugal as of January 2026.

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.

$281 Cheap Flights from San Diego to Portugal in 2026

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Find the cheapest flights from San Diego to Portugal

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

9:55 am - 1:20 pm

SAN

LIS

19h 25m2 stops

6:10 am - 3:45 pm

LIS

SAN

17h 35m1 stop

$429Lufthansa

Fri, Jan 30 - Fri, Feb 6

9:55 am - 1:20 pm

SAN

LIS

19h 25m2 stops

6:10 am - 3:45 pm

LIS

SAN

17h 35m1 stop

$431Lufthansa

Fri, Jan 30 - Fri, Feb 6

5:35 pm - 7:55 pm

SAN

LIS

18h 20m1 stop

7:45 am - 10:44 pm

LIS

SAN

22h 59m2 stops

$433Lufthansa

Wed, Feb 11 - Tue, Feb 17

3:15 pm - 10:05 pm

SAN

OPO

22h 50m2 stops

5:00 am - 11:50 am

OPO

SAN

14h 50m1 stop

$482Delta

Tue, Apr 14 - Tue, Apr 28

6:15 am - 10:30 am

SAN

OPO

20h 15m2 stops

5:00 am - 12:05 pm

OPO

SAN

15h 05m1 stop

$489Delta

Sat, Feb 14 - Sat, Feb 21

6:55 pm - 3:45 pm

SAN

FAO

36h 50m3 stops

6:05 am - 11:53 am

FAO

SAN

37h 48m2 stops

$1,304Air Canada

Fri, Feb 13 - Fri, Feb 20

6:30 am - 10:25 am

SAN

FAO

19h 55m3 stops

1:30 pm - 8:49 pm

FAO

SAN

39h 19m2 stops

$1,354United Airlines

Sun, Feb 15 - Sun, Feb 22

6:30 am - 10:25 am

SAN

FAO

19h 55m3 stops

6:05 am - 8:46 pm

FAO

SAN

22h 41m2 stops

$1,631United Airlines

Thu, Feb 26 - Mon, Mar 2

3:07 pm - 5:50 pm

SAN

FAO

18h 43m2 stops

7:50 pm - 6:25 pm

FAO

SAN

30h 35m2 stops

$1,663British Airways

Fri, Apr 10 - Fri, Apr 24

3:07 pm - 5:50 pm

SAN

FAO

18h 43m2 stops

7:50 pm - 6:25 pm

FAO

SAN

30h 35m2 stops

$1,665British Airways

Fri, Apr 10 - Fri, Apr 24

Iberia flights from San Diego to Portugal

Our best Iberia deals on San Diego to Portugal flight tickets

Iberia

Jan 12

SAN9:24 amSan Diego

15h 41m

1 stop

LIS9:05 amLisbon Humberto Delgado

Jan 22

LIS6:30 amLisbon Humberto Delgado

23h 56m

2 stops

SAN10:26 pmSan Diego

$505

Find similar

Iberia

Jan 12

SAN9:24 amSan Diego

15h 41m

1 stop

LIS9:05 amLisbon Humberto Delgado

Jan 22

LIS10:55 amLisbon Humberto Delgado

20h 03m

1 stop

SAN10:58 pmSan Diego

$507

Find similar

Iberia

Jan 12

SAN9:24 amSan Diego

15h 41m

1 stop

LIS9:05 amLisbon Humberto Delgado

Jan 22

LIS10:55 amLisbon Humberto Delgado

20h 03m

1 stop

SAN10:58 pmSan Diego

$508

Find similar

United Airlines flights from San Diego to Portugal

Our best United Airlines deals on San Diego to Portugal flight tickets

United Airlines

Jan 26

SAN7:00 amSan Diego

17h 10m

1 stop

LIS8:10 amLisbon Humberto Delgado

Feb 11

LIS6:10 amLisbon Humberto Delgado

17h 35m

1 stop

SAN3:45 pmSan Diego

$482

Find similar

United Airlines

Jan 12

SAN7:00 amSan Diego

17h 10m

2 stops

LIS8:10 amLisbon Humberto Delgado

Jan 22

LIS5:00 amLisbon Humberto Delgado

25h 33m

2 stops

SAN10:33 pmSan Diego

$484

Find similar

United Airlines

Jan 12

SAN9:00 amSan Diego

15h 10m

2 stops

LIS8:10 amLisbon Humberto Delgado

Jan 22

LIS5:00 amLisbon Humberto Delgado

25h 33m

2 stops

SAN10:33 pmSan Diego

$485

Find similar

Fly from

Fly to

Route

Depart

Return

Price

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Fri 1/30

9:55 am-1:20 pm

2 stops19h 25m

Lisbon Humberto Delgado

Fri 2/6

6:10 am-3:45 pm

1 stop17h 35m

$429

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Fri 1/30

9:55 am-1:20 pm

2 stops19h 25m

Lisbon Humberto Delgado

Fri 2/6

6:10 am-3:45 pm

1 stop17h 35m

$431

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Wed 2/11

5:35 pm-7:55 pm

1 stop18h 20m

Lisbon Humberto Delgado

Tue 2/17

7:45 am-10:44 pm

2 stops22h 59m

$433

San DiegoPorto

SAN - OPO

SANOPO

San Diego

Tue 4/14

3:15 pm-10:05 pm

2 stops22h 50m

Porto

Tue 4/28

5:00 am-11:50 am

1 stop14h 50m

$482

San DiegoPorto

SAN - OPO

SANOPO

San Diego

Sat 2/14

6:15 am-10:30 am

2 stops20h 15m

Porto

Sat 2/21

5:00 am-12:05 pm

1 stop15h 05m

$489

San DiegoFaro

SAN - FAO

SANFAO

San Diego

Fri 2/13

6:55 pm-3:45 pm

3 stops36h 50m

Faro

Fri 2/20

6:05 am-11:53 am

2 stops37h 48m

$1,304

San DiegoFaro

SAN - FAO

SANFAO

San Diego

Sun 2/15

6:30 am-10:25 am

3 stops19h 55m

Faro

Sun 2/22

1:30 pm-8:49 pm

2 stops39h 19m

$1,354

San DiegoFaro

SAN - FAO

SANFAO

San Diego

Thu 2/26

6:30 am-10:25 am

3 stops19h 55m

Faro

Mon 3/2

6:05 am-8:46 pm

2 stops22h 41m

$1,631

San DiegoFaro

SAN - FAO

SANFAO

San Diego

Fri 4/10

3:07 pm-5:50 pm

2 stops18h 43m

Faro

Fri 4/24

7:50 pm-6:25 pm

2 stops30h 35m

$1,663

San DiegoFaro

SAN - FAO

SANFAO

San Diego

Fri 4/10

3:07 pm-5:50 pm

2 stops18h 43m

Faro

Fri 4/24

7:50 pm-6:25 pm

2 stops30h 35m

$1,665

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

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 $641, 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 January instead. Flights to Portugal in January, while not as cheap as those in November, still average around $687.

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 $895 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 $752 on momondo.

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 30m
Direct flights	None

The fastest flight from San Diego to Portugal takes 15h 30m

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?
There are 9 operators available for flights from San Diego Airport to Portugal as of January 2026.
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
KLM	PriceFrom $490	Free Cancellation	Rating 7.7 1,435 reviews	Search KLM flights
Iberia	PriceFrom $506	Free Cancellation	Rating 7.0 3,058 reviews	Search Iberia flights
Lufthansa	PriceFrom $549	Free Cancellation	Rating 6.8 7,674 reviews	Search Lufthansa flights
American Airlines	PriceFrom $555	Free Cancellation	Rating 7.2 11,074 reviews	Search American Airlines flights
Virgin Atlantic	PriceFrom $565	Free Cancellation	Rating 7.5 678 reviews	Search Virgin Atlantic flights
British Airways	PriceFrom $570	Free Cancellation	Rating 6.7 7,635 reviews	Search British Airways flights
Delta	PriceFrom $586	Free Cancellation	Rating 7.9 8,021 reviews	Search Delta flights
United Airlines	PriceFrom $587	Free Cancellation	Rating 7.4 9,132 reviews	Search United Airlines flights
Air Canada	PriceFrom $601	Free Cancellation	Rating 7.1 10,573 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.