Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from San Diego to Portugal from $298

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 11/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from San Diego to Portugal

Cheap round-trip flights

United Airlines Logo
12:15 pm - 9:30 amSAN-OPO
14h 15m1 stop
United Airlines Logo
6:00 am - 11:38 amOPO-SAN
36h 38m2 stops
$556United Airlines
Find Deal
Tue, Mar 10 - Tue, Mar 17
Multiple Airlines Logo
10:51 am - 9:30 amSAN-OPO
15h 39m2 stops
Multiple Airlines Logo
6:00 am - 8:16 pmOPO-SAN
21h 16m2 stops
$560Multiple Airlines
Find Deal
Tue, Mar 10 - Tue, Mar 17
Multiple Airlines Logo
7:10 am - 9:30 amSAN-OPO
19h 20m1 stop
Multiple Airlines Logo
1:45 pm - 4:45 pmOPO-SAN
34h 00m1 stop
$562Multiple Airlines
Find Deal
Tue, Mar 10 - Tue, Mar 17
Delta Logo
10:00 am - 2:50 pmSAN-LIS
20h 50m2 stops
Delta Logo
5:00 am - 12:00 pmLIS-SAN
15h 00m1 stop
$617Delta
Find Deal
Thu, Oct 9 - Tue, Oct 14
British Airways Logo
6:00 pm - 10:25 pmSAN-LIS
20h 25m1 stop
British Airways Logo
6:35 pm - 4:10 pmLIS-SAN
29h 35m1 stop
$623British Airways
Find Deal
Fri, Feb 6 - Mon, Feb 23
Air Canada Logo
4:10 pm - 9:20 amSAN-LIS
33h 10m2 stops
Air Canada Logo
11:20 am - 9:15 amLIS-SAN
29h 55m2 stops
$625Air Canada
Find Deal
Sat, Nov 8 - Tue, Dec 2
British Airways Logo
7:50 pm - 11:10 pmSAN-LIS
19h 20m1 stop
British Airways Logo
6:45 pm - 6:00 pmLIS-SAN
31h 15m1 stop
$629British Airways
Find Deal
Mon, Oct 13 - Tue, Oct 21
Delta Logo
9:45 am - 3:10 pmSAN-LIS
22h 25m2 stops
Delta Logo
5:30 am - 6:00 pmLIS-SAN
20h 30m2 stops
$640Delta
Find Deal
Fri, Oct 31 - Fri, Nov 7
American Airlines Logo
6:30 am - 12:50 pmSAN-FAO
46h 20m2 stops
American Airlines Logo
7:05 pm - 4:10 pmFAO-SAN
29h 05m1 stop
$882American Airlines
Find Deal
Thu, Nov 13 - Mon, Nov 17
American Airlines Logo
12:43 pm - 12:50 pmSAN-FAO
40h 07m2 stops
American Airlines Logo
7:05 pm - 4:10 pmFAO-SAN
29h 05m1 stop
$922American Airlines
Find Deal
Thu, Nov 13 - Mon, Nov 17

British Airways flights from San Diego to Portugal

Our best British Airways deals on San Diego to Portugal flight tickets
British Airways
Feb 6
SAN6:00 pmSan Diego
20h 25m
1 stop
LIS10:25 pmLisbon Humberto Delgado
Feb 23
LIS6:35 pmLisbon Humberto Delgado
29h 35m
1 stop
SAN4:10 pmSan Diego
$623
Find similar
British Airways
Oct 13
SAN7:50 pmSan Diego
19h 20m
1 stop
LIS11:10 pmLisbon Humberto Delgado
Oct 21
LIS6:45 pmLisbon Humberto Delgado
31h 15m
1 stop
SAN6:00 pmSan Diego
$629
Find similar
British Airways
Oct 11
SAN4:40 pmSan Diego
33h 25m
1 stop
LIS10:05 amLisbon Humberto Delgado
Oct 20
LIS6:45 pmLisbon Humberto Delgado
28h 05m
1 stop
SAN2:50 pmSan Diego
$645
Find similar

United Airlines flights from San Diego to Portugal

Our best United Airlines deals on San Diego to Portugal flight tickets
United Airlines
Mar 10
SAN12:15 pmSan Diego
14h 15m
1 stop
OPO9:30 amPorto
Mar 17
OPO6:00 amPorto
36h 38m
2 stops
SAN11:38 amSan Diego
$556
Find similar
United Airlines
Dec 28
SAN10:45 pmSan Diego
32h 10m
2 stops
OPO2:55 pmPorto
Jan 9
OPO6:00 amPorto
35h 40m
2 stops
SAN9:40 amSan Diego
$587
Find similar
United Airlines
Dec 29
SAN4:45 pmSan Diego
34h 55m
2 stops
OPO11:40 amPorto
Jan 9
OPO6:00 amPorto
35h 40m
2 stops
SAN9:40 amSan Diego
$593
Find similar

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 September 17, 2025.
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 DiegoPorto

SAN - OPO

SANOPO

San Diego

Tue 3/10

12:15 pm-9:30 am

1 stop14h 15m

Porto

Tue 3/17

6:00 am-11:38 am

2 stops36h 38m

$556

San DiegoPorto

SAN - OPO

SANOPO

San Diego

Tue 3/10

10:51 am-9:30 am

2 stops15h 39m

Porto

Tue 3/17

6:00 am-8:16 pm

2 stops21h 16m

$560

San DiegoPorto

SAN - OPO

SANOPO

San Diego

Tue 3/10

7:10 am-9:30 am

1 stop19h 20m

Porto

Tue 3/17

1:45 pm-4:45 pm

1 stop34h 00m

$562

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Thu 10/9

10:00 am-2:50 pm

2 stops20h 50m

Lisbon Humberto Delgado

Tue 10/14

5:00 am-12:00 pm

1 stop15h 00m

$617

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Fri 2/6

6:00 pm-10:25 pm

1 stop20h 25m

Lisbon Humberto Delgado

Mon 2/23

6:35 pm-4:10 pm

1 stop29h 35m

$623

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Sat 11/8

4:10 pm-9:20 am

2 stops33h 10m

Lisbon Humberto Delgado

Tue 12/2

11:20 am-9:15 am

2 stops29h 55m

$625

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Mon 10/13

7:50 pm-11:10 pm

1 stop19h 20m

Lisbon Humberto Delgado

Tue 10/21

6:45 pm-6:00 pm

1 stop31h 15m

$629

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

Fri 10/31

9:45 am-3:10 pm

2 stops22h 25m

Lisbon Humberto Delgado

Fri 11/7

5:30 am-6:00 pm

2 stops20h 30m

$640

San DiegoFaro

SAN - FAO

SANFAO

San Diego

Thu 11/13

6:30 am-12:50 pm

2 stops46h 20m

Faro

Mon 11/17

7:05 pm-4:10 pm

1 stop29h 05m

$882

San DiegoFaro

SAN - FAO

SANFAO

San Diego

Thu 11/13

12:43 pm-12:50 pm

2 stops40h 07m

Faro

Mon 11/17

7:05 pm-4:10 pm

1 stop29h 05m

$922

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 $728, 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 $752.

What is the cheapest day to depart on your flight to Portugal?

According to our data, Wednesday is the cheapest day to fly to Portugal from San Diego. The lowest ticket price found for a Wednesday departure recently was $878. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. The most expensive day to fly to Portugal is Friday, with ticket prices averaging around $1,214.

What is the cheapest time of day to depart on your flight to Portugal?

Our most recent data shows that the best time of day to fly to Portugal is at noon. Flights from San Diego to Portugal during this time can be as low as $888. In the morning is when there is more demand to fly to Portugal, so prices are often more expensive at around $1,071 per ticket.

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 $964 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 $781 on momondo.

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

You could potentially save up to 45% 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

Direct flights

None
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
Virgin AtlanticPriceFrom $593Free CancellationRating
7.4
664 reviews
Search Virgin Atlantic flights
DeltaPriceFrom $597Free CancellationRating
7.9
7,961 reviews
Search Delta flights
IberiaPriceFrom $598Free CancellationRating
7.0
2,925 reviews
Search Iberia flights
United AirlinesPriceFrom $599Free CancellationRating
7.4
8,926 reviews
Search United Airlines flights
LufthansaPriceFrom $601Free CancellationRating
6.8
7,409 reviews
Search Lufthansa flights
British AirwaysPriceFrom $626Free CancellationRating
6.7
7,367 reviews
Search British Airways flights
KLMPriceFrom $626Free CancellationRating
7.8
1,386 reviews
Search KLM flights
Scandinavian AirlinesPriceFrom $631Free CancellationRating
7.4
1,486 reviews
Search Scandinavian Airlines flights
American AirlinesPriceFrom $659Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
Air CanadaPriceFrom $671Free CancellationRating
7.1
10,000 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.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Fri 10/17
Fri 10/24
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Portugal

Popular cities in Portugal

Popular flights according to clicks in the last 7 days on momondo
Flights to Lisbonfrom $358
Flights to Portofrom $354
Flights to Funchalfrom $416
Flights to Farofrom $403
Flights to Ponta Delgadafrom $417
Flights to Lajesfrom $425
Flights to Hortafrom $566
Flights to Pico Islandfrom $585
Flights to Porto Santofrom $582
Flights to Velasfrom $576