Cheap flights from San Diego to Portugal from $317
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 1/11. 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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Fly from
Fly to
Route
Depart
Return
San DiegoLisbon
SAN San Diego - LIS Lisbon Humberto Delgado
SANLIS
San Diego
Tue 10/27
7:20 am-8:00 am
1 stop17h 40m
Lisbon Humberto Delgado
Wed 11/4
11:15 am-8:28 pm
1 stop17h 13m
San DiegoLisbon
SAN San Diego - LIS Lisbon Humberto Delgado
SANLIS
San Diego
Tue 10/27
6:15 am-8:00 am
2 stops18h 45m
Lisbon Humberto Delgado
Wed 11/4
10:00 am-10:43 pm
2 stops20h 43m
San DiegoLisbon
SAN San Diego - LIS Lisbon Humberto Delgado
SANLIS
San Diego
Wed 3/3
5:35 pm-11:30 pm
1 stop21h 55m
Lisbon Humberto Delgado
Tue 4/13
6:15 am-3:25 pm
1 stop17h 10m
San DiegoLisbon
SAN San Diego - LIS Lisbon Humberto Delgado
SANLIS
San Diego
Tue 3/23
6:35 pm-11:30 pm
1 stop21h 55m
Lisbon Humberto Delgado
Thu 4/1
6:15 am-3:25 pm
1 stop17h 10m
San DiegoLisbon
SAN San Diego - LIS Lisbon Humberto Delgado
SANLIS
San Diego
Sun 2/21
6:00 pm-5:45 pm
1 stop15h 45m
Lisbon Humberto Delgado
Thu 2/25
10:55 am-7:05 pm
1 stop16h 10m
San DiegoLisbon
SAN San Diego - LIS Lisbon Humberto Delgado
SANLIS
San Diego
Mon 2/1
6:00 pm-6:50 pm
1 stop16h 50m
Lisbon Humberto Delgado
Fri 2/12
11:05 am-6:55 pm
1 stop15h 50m
San DiegoLisbon
SAN San Diego - LIS Lisbon Humberto Delgado
SANLIS
San Diego
Mon 3/1
7:10 am-8:10 am
1 stop17h 00m
Lisbon Humberto Delgado
Tue 3/9
6:05 am-3:45 pm
1 stop17h 40m
San DiegoLisbon
SAN San Diego - LIS Lisbon Humberto Delgado
SANLIS
San Diego
Sun 1/24
7:10 am-8:10 am
1 stop17h 00m
Lisbon Humberto Delgado
Wed 3/3
6:00 am-3:45 pm
1 stop17h 45m
San DiegoPorto
SAN San Diego - OPO Porto
SANOPO
San Diego
Tue 3/16
7:00 am-10:35 am
2 stops20h 35m
Porto
Tue 3/30
5:00 am-11:45 am
1 stop14h 45m
San DiegoPorto
SAN San Diego - OPO Porto
SANOPO
San Diego
Tue 3/16
3:05 pm-3:25 pm
1 stop17h 20m
Porto
Tue 3/30
5:00 am-11:45 am
1 stop14h 45m
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 $587, 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 $622.
How far in advance should I book a flight from San Diego 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 $874 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 $678 on momondo.
What is the cheapest airline that flies from San Diego to Portugal?
British Airways, Air France, and Lufthansa are the most popular carriers operating from San Diego to Portugal
What airlines fly to Portugal?
British Airways, United Airlines and Delta are the top three most popular airlines that fly to Portugal from San Diego according to our data. British Airways is the first choice among our users, with 42% of people opting to fly with this airline when traveling to Portugal. Keep in mind that there are 6 different airlines that fly to Portugal on a routine basis, so you have a few additional options to choose from.
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
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 6 operators available for flights from San Diego Airport to Portugal as of October 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 | ||
|---|---|---|---|---|---|
| PriceFrom $151 | Free Cancellation | Rating 7.8 1,580 reviews | |||
| PriceFrom $487 | Free Cancellation | Rating 7.4 10,289 reviews | |||
| PriceFrom $491 | Free Cancellation | Rating 6.8 8,263 reviews | |||
| PriceFrom $505 | Free Cancellation | Rating 7.0 12,129 reviews | |||
| PriceFrom $508 | Free Cancellation | Rating 6.7 8,245 reviews | |||
| PriceFrom $552 | Free Cancellation | Rating 7.8 8,634 reviews |
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.