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 41% of people opting to fly with this airline when traveling to Portugal. Keep in mind that there are 8 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?

British Airways, Air Canada, and United Airlines 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 8 operators available for flights from San Diego Airport to Portugal as of April 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.

$366 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.

5:15 pm - 10:45 pm

SAN

LIS

21h 30m

1 stop

6:15 am - 3:25 pm

LIS

SAN

17h 10m

1 stop

$701Lufthansa

Tue, Apr 21 - Thu, Apr 30

6:22 pm - 10:45 pm

SAN

LIS

20h 23m

2 stops

6:15 am - 3:25 pm

LIS

SAN

17h 10m

1 stop

$706Lufthansa

Tue, Apr 21 - Tue, Apr 28

6:15 am - 2:55 pm

SAN

LIS

24h 40m

2 stops

5:00 am - 11:50 am

LIS

SAN

14h 50m

1 stop

$710Delta

Tue, Apr 21 - Thu, Apr 30

9:45 pm - 10:30 am

SAN

LIS

28h 45m

1 stop

11:25 am - 3:33 pm

LIS

SAN

36h 08m

2 stops

$712United Airlines

Sat, Apr 25 - Fri, May 8

7:20 am - 10:45 pm

SAN

LIS

31h 25m

2 stops

11:25 am - 5:19 pm

LIS

SAN

37h 54m

2 stops

$714United Airlines

Tue, Apr 21 - Tue, May 5

6:15 am - 2:35 pm

SAN

LIS

24h 20m

2 stops

11:55 am - 11:50 am

LIS

SAN

31h 55m

1 stop

$715Delta

Wed, Apr 22 - Wed, May 6

7:00 am - 10:30 am

SAN

OPO

19h 30m

1 stop

5:00 am - 12:05 pm

OPO

SAN

15h 05m

1 stop

$790KLM

Tue, Aug 18 - Tue, Jan 12

1:40 pm - 7:10 am

SAN

FAO

33h 30m

1 stop

9:45 pm - 11:50 am

FAO

SAN

22h 05m

1 stop

$821KLM

Thu, May 7 - Mon, May 11

4:45 pm - 5:50 pm

SAN

FAO

17h 05m

1 stop

11:30 am - 2:55 pm

FAO

SAN

35h 25m

1 stop

$951British Airways

Fri, Apr 24 - Tue, Apr 28

4:45 pm - 5:50 pm

SAN

FAO

17h 05m

1 stop

3:40 pm - 2:55 pm

FAO

SAN

31h 15m

1 stop

$972British Airways

Fri, Apr 24 - Tue, Apr 28

Delta flights from San Diego to Portugal

Our best Delta deals on San Diego to Portugal flight tickets

Delta

Apr 21

SAN6:15 amSan Diego

24h 40m

2 stops

LIS2:55 pmLisbon Humberto Delgado

Apr 30

LIS5:00 amLisbon Humberto Delgado

14h 50m

1 stop

SAN11:50 amSan Diego

$710

Delta

Apr 7

SAN6:20 amSan Diego

17h 40m

2 stops

LIS8:00 amLisbon Humberto Delgado

Apr 14

LIS5:00 amLisbon Humberto Delgado

14h 50m

1 stop

SAN11:50 amSan Diego

$711

Delta

Apr 7

SAN2:47 pmSan Diego

19h 58m

2 stops

LIS6:45 pmLisbon Humberto Delgado

Apr 14

LIS5:00 amLisbon Humberto Delgado

14h 50m

1 stop

SAN11:50 amSan Diego

$715

United Airlines flights from San Diego to Portugal

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

United Airlines

Apr 25

SAN9:45 pmSan Diego

28h 45m

1 stop

LIS10:30 amLisbon Humberto Delgado

May 8

LIS11:25 amLisbon Humberto Delgado

36h 08m

2 stops

SAN3:33 pmSan Diego

$712

United Airlines

Apr 8

SAN11:00 amSan Diego

27h 45m

2 stops

LIS10:45 pmLisbon Humberto Delgado

Apr 14

LIS11:25 amLisbon Humberto Delgado

33h 40m

2 stops

SAN1:05 pmSan Diego

$714

United Airlines

Apr 18

SAN9:45 pmSan Diego

28h 45m

1 stop

LIS10:30 amLisbon Humberto Delgado

Apr 29

LIS6:15 amLisbon Humberto Delgado

17h 10m

1 stop

SAN3:25 pmSan Diego

$717

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Tue 4/21

5:15 pm-10:45 pm

1 stop21h 30m

Lisbon Humberto Delgado

Thu 4/30

6:15 am-3:25 pm

1 stop17h 10m

$701

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Tue 4/21

6:22 pm-10:45 pm

2 stops20h 23m

Lisbon Humberto Delgado

Tue 4/28

6:15 am-3:25 pm

1 stop17h 10m

$706

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Tue 4/21

6:15 am-2:55 pm

2 stops24h 40m

Lisbon Humberto Delgado

Thu 4/30

5:00 am-11:50 am

1 stop14h 50m

$710

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Sat 4/25

9:45 pm-10:30 am

1 stop28h 45m

Lisbon Humberto Delgado

Fri 5/8

11:25 am-3:33 pm

2 stops36h 08m

$712

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Tue 4/21

7:20 am-10:45 pm

2 stops31h 25m

Lisbon Humberto Delgado

Tue 5/5

11:25 am-5:19 pm

2 stops37h 54m

$714

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Wed 4/22

6:15 am-2:35 pm

2 stops24h 20m

Lisbon Humberto Delgado

Wed 5/6

11:55 am-11:50 am

1 stop31h 55m

$715

Quickest round-trip

San DiegoPorto

SAN - OPO

SANOPO

San Diego

Tue 8/18

7:00 am-10:30 am

1 stop19h 30m

Porto

Tue 1/12

5:00 am-12:05 pm

1 stop15h 05m

$790

San DiegoFaro

SAN - FAO

SANFAO

San Diego

Thu 5/7

1:40 pm-7:10 am

1 stop33h 30m

Faro

Mon 5/11

9:45 pm-11:50 am

1 stop22h 05m

$821

San DiegoFaro

SAN - FAO

SANFAO

San Diego

Fri 4/24

4:45 pm-5:50 pm

1 stop17h 05m

Faro

Tue 4/28

11:30 am-2:55 pm

1 stop35h 25m

$951

San DiegoFaro

SAN - FAO

SANFAO

San Diego

Fri 4/24

4:45 pm-5:50 pm

1 stop17h 05m

Faro

Tue 4/28

3:40 pm-2:55 pm

1 stop31h 15m

$972

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 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 $773 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 $688 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?
There are 8 operators available for flights from San Diego Airport to Portugal as of April 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
Delta	PriceFrom $489	Free Cancellation	Rating 7.9 8,378 reviews	Search Delta flights
KLM	PriceFrom $491	Free Cancellation	Rating 7.7 1,485 reviews	Search KLM flights
Iberia	PriceFrom $506	Free Cancellation	Rating 7.0 3,164 reviews	Search Iberia flights
Lufthansa	PriceFrom $520	Free Cancellation	Rating 6.8 7,886 reviews	Search Lufthansa flights
British Airways	PriceFrom $523	Free Cancellation	Rating 6.7 7,848 reviews	Search British Airways flights
United Airlines	PriceFrom $536	Free Cancellation	Rating 7.4 9,540 reviews	Search United Airlines flights
American Airlines	PriceFrom $555	Free Cancellation	Rating 7.1 11,555 reviews	Search American Airlines flights
Air Canada	PriceFrom $590	Free Cancellation	Rating 7.1 10,889 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.

An easier way to manage your Portugal trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Popular cities

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Feeling lucky

Popular cities in Portugal

Flights to Lisbonfrom $431

Flights to Portofrom $427

Flights to Funchalfrom $549

Flights to Farofrom $509

Flights to Ponta Delgadafrom $585

Flights to Lajesfrom $626

Flights to Pico Islandfrom $750

Flights to Hortafrom $668

Flights to Porto Santofrom $697

Flights to Velasfrom $672

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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Delta flights from San Diego to Portugal

Our best Delta deals on San Diego to Portugal flight tickets

United Airlines flights from San Diego to Portugal

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

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See travel insights to Portugal from

How to get the cheapest flight ticket from San Diego to Portugal

What is the cheapest month to fly to Portugal?

How far in advance should I book a flight to Portugal?

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

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

What airlines fly to Portugal?

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

Direct flights

Frequently asked questions about flying from San Diego to Portugal

Best airlines flying from San Diego to Portugal

Compare and see reviews for airlines that fly from San Diego to Portugal with momondo

Why use momondo?

An easier way to manage your Portugal trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Portugal

Popular cities in Portugal

Popular flights according to clicks in the last 7 days on momondo

San Diego flight routes

According to popular flight searches on momondo this year

Portugal flight routes

According to popular flight searches on momondo this year

Fly your favorite airline to Portugal

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Portugal

List of cabin classes available on flights landing in Portugal. Availability may vary depending on flight origin and airline.

Complete your trip to Portugal

Explore popular destinations other users love

According to popular flight searches on momondo this year