Latest deals
Insights
FAQs
Reviews
Price Alerts

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 1/15. 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

Enter your travel dates to find the best prices.
Lufthansa Logo
5:35 pm - 11:40 pmSAN-OPO
22h 05m1 stop
Lufthansa Logo
6:15 am - 3:45 pmOPO-SAN
17h 30m1 stop
$477Lufthansa
Find Deal
śr., gru 3 - ndz., gru 7
Multiple Airlines Logo
7:00 am - 10:30 amSAN-OPO
19h 30m2 stops
Multiple Airlines Logo
6:30 am - 8:52 pmOPO-SAN
22h 22m2 stops
$483Multiple Airlines
Find Deal
pon., lut 2 - pon., lut 9
Delta Logo
7:10 am - 10:30 amSAN-OPO
19h 20m2 stops
Delta Logo
5:00 am - 7:17 pmOPO-SAN
22h 17m2 stops
$497Delta
Find Deal
śr., gru 3 - ndz., gru 7
United Airlines Logo
6:15 am - 2:55 pmSAN-OPO
24h 40m3 stops
United Airlines Logo
6:00 am - 9:56 pmOPO-SAN
23h 56m2 stops
$503United Airlines
Find Deal
pon., lut 2 - pon., lut 9
Delta Logo
7:00 am - 8:00 amSAN-LIS
17h 00m1 stop
Delta Logo
10:00 am - 8:24 pmLIS-SAN
18h 24m1 stop
$555Delta
Find Deal
wt., sty 6 - pt., sty 23
British Airways Logo
6:00 pm - 12:10 pmSAN-LIS
34h 10m1 stop
British Airways Logo
7:05 am - 4:10 pmLIS-SAN
17h 05m1 stop
$557British Airways
Find Deal
śr., sty 7 - pt., sty 23
British Airways Logo
6:00 pm - 9:55 pmSAN-LIS
19h 55m1 stop
British Airways Logo
11:05 am - 4:05 pmLIS-SAN
37h 00m1 stop
$558British Airways
Find Deal
pon., sty 26 - sob., lut 14
KLM Logo
10:15 pm - 8:00 amSAN-LIS
25h 45m1 stop
KLM Logo
10:00 am - 9:07 pmLIS-SAN
19h 07m1 stop
$565KLM
Find Deal
pon., sty 5 - śr., sty 21
United Airlines Logo
6:30 am - 7:55 amSAN-LIS
18h 25m2 stops
United Airlines Logo
5:05 am - 5:49 pmLIS-SAN
20h 44m2 stops
$572United Airlines
Find Deal
czw., mar 26 - wt., kwi 7
KLM Logo
1:55 pm - 2:35 pmSAN-LIS
16h 40m1 stop
KLM Logo
3:35 pm - 12:00 pmLIS-SAN
28h 25m1 stop
$661KLM
Find Deal
czw., kwi 2 - pon., kwi 6

KLM flights from San Diego to Portugal

Our best KLM deals on San Diego to Portugal flight tickets
KLM
Jan 5
SAN10:15 pmSan Diego
25h 45m
1 stop
LIS8:00 amLisbon Humberto Delgado
Jan 21
LIS10:00 amLisbon Humberto Delgado
19h 07m
1 stop
SAN9:07 pmSan Diego
$565
Find similar
KLM
Apr 2
SAN1:55 pmSan Diego
16h 40m
1 stop
LIS2:35 pmLisbon Humberto Delgado
Apr 6
LIS3:35 pmLisbon Humberto Delgado
28h 25m
1 stop
SAN12:00 pmSan Diego
$661
Find similar
KLM
Apr 2
SAN1:55 pmSan Diego
24h 55m
1 stop
LIS10:50 pmLisbon Humberto Delgado
Apr 6
LIS7:30 pmLisbon Humberto Delgado
24h 30m
1 stop
SAN12:00 pmSan Diego
$662
Find similar

British Airways flights from San Diego to Portugal

Our best British Airways deals on San Diego to Portugal flight tickets
British Airways
Jan 7
SAN6:00 pmSan Diego
15h 40m
1 stop
LIS5:40 pmLisbon Humberto Delgado
Jan 22
LIS7:00 amLisbon Humberto Delgado
17h 10m
1 stop
SAN4:10 pmSan Diego
$557
Find similar
British Airways
Jan 26
SAN6:00 pmSan Diego
19h 55m
1 stop
LIS9:55 pmLisbon Humberto Delgado
Feb 14
LIS11:05 amLisbon Humberto Delgado
37h 00m
1 stop
SAN4:05 pmSan Diego
$558
Find similar
British Airways
Jan 23
SAN6:00 pmSan Diego
36h 50m
1 stop
LIS2:50 pmLisbon Humberto Delgado
Feb 14
LIS11:05 amLisbon Humberto Delgado
37h 00m
1 stop
SAN4:05 pmSan Diego
$583
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 Listopad 7, 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

śr. 12/3

5:35 pm-11:40 pm

1 stop22h 05m

Porto

ndz. 12/7

6:15 am-3:45 pm

1 stop17h 30m

$477

San DiegoPorto

SAN - OPO

SANOPO

San Diego

pon. 2/2

7:00 am-10:30 am

2 stops19h 30m

Porto

pon. 2/9

6:30 am-8:52 pm

2 stops22h 22m

$483

San DiegoPorto

SAN - OPO

SANOPO

San Diego

śr. 12/3

7:10 am-10:30 am

2 stops19h 20m

Porto

ndz. 12/7

5:00 am-7:17 pm

2 stops22h 17m

$497

San DiegoPorto

SAN - OPO

SANOPO

San Diego

pon. 2/2

6:15 am-2:55 pm

3 stops24h 40m

Porto

pon. 2/9

6:00 am-9:56 pm

2 stops23h 56m

$503

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

wt. 1/6

7:00 am-8:00 am

1 stop17h 00m

Lisbon Humberto Delgado

pt. 1/23

10:00 am-8:24 pm

1 stop18h 24m

$555

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

śr. 1/7

6:00 pm-12:10 pm

1 stop34h 10m

Lisbon Humberto Delgado

pt. 1/23

7:05 am-4:10 pm

1 stop17h 05m

$557

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

pon. 1/26

6:00 pm-9:55 pm

1 stop19h 55m

Lisbon Humberto Delgado

sob. 2/14

11:05 am-4:05 pm

1 stop37h 00m

$558

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

pon. 1/5

10:15 pm-8:00 am

1 stop25h 45m

Lisbon Humberto Delgado

śr. 1/21

10:00 am-9:07 pm

1 stop19h 07m

$565

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

czw. 3/26

6:30 am-7:55 am

2 stops18h 25m

Lisbon Humberto Delgado

wt. 4/7

5:05 am-5:49 pm

2 stops20h 44m

$572

San DiegoLisbon

SAN - LIS

SANLIS

San Diego

czw. 4/2

1:55 pm-2:35 pm

1 stop16h 40m

Lisbon Humberto Delgado

pon. 4/6

3:35 pm-12:00 pm

1 stop28h 25m

$661

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 November. Flight prices, which tend to average around $676, 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 February instead. Flights to Portugal in February, while not as cheap as those in November, still average around $719.

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 $933 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 $756 on momondo.

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

You could potentially save up to 37% 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
LufthansaPriceFrom $557Free CancellationRating
6.8
7,558 reviews
Search Lufthansa flights
IberiaPriceFrom $565Free CancellationRating
7.0
3,007 reviews
Search Iberia flights
Virgin AtlanticPriceFrom $565Free CancellationRating
7.5
672 reviews
Search Virgin Atlantic flights
DeltaPriceFrom $586Free CancellationRating
7.9
8,002 reviews
Search Delta flights
United AirlinesPriceFrom $598Free CancellationRating
7.4
9,009 reviews
Search United Airlines flights
British AirwaysPriceFrom $605Free CancellationRating
6.7
7,500 reviews
Search British Airways flights
American AirlinesPriceFrom $621Free CancellationRating
7.2
11,043 reviews
Search American Airlines flights
KLMPriceFrom $626Free CancellationRating
7.7
1,408 reviews
Search KLM flights
Air CanadaPriceFrom $638Free CancellationRating
7.1
10,419 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
ndz. 12/7
ndz. 12/14
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 $369
Flights to Portofrom $346
Flights to Funchalfrom $389
Flights to Farofrom $380
Flights to Ponta Delgadafrom $401
Flights to Lajesfrom $497
Flights to Hortafrom $564
Flights to Pico Islandfrom $563
Flights to Porto Santofrom $646
Flights to Velasfrom $581