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Cheap Flights from San Diego to Lisbon

Compare San Diego to Lisbon flight deals

Find the cheapest month or even day of the year to fly to Lisbon

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Flight deals from San Diego to Lisbon

Looking for a cheap last-minute deal or the best return flight from San Diego to Lisbon Airport? If you want to travel next month, return fares start from R 15,517. Find the lowest prices on one-way and return tickets right here.
Lisbon.R 4,812 per passenger.Departing Sat, 29 Aug.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from San Diego International on Sat, 29 Aug, arriving in Lisbon.Price includes taxes and charges.From R 4,812, select.
Lisbon.R 5,508 per passenger.Departing Sun, 13 Dec.One-way flight with British Airways.Outbound indirect flight with British Airways, departs from San Diego International on Sun, 13 Dec, arriving in Lisbon.Price includes taxes and charges.From R 5,508, select.
Lisbon.R 5,523 per passenger.Departing Sun, 3 Jan.One-way flight with British Airways.Outbound indirect flight with British Airways, departs from San Diego International on Sun, 3 Jan, arriving in Lisbon.Price includes taxes and charges.From R 5,523, select.
Lisbon.R 5,567 per passenger.Departing Sun, 21 Feb.One-way flight with American Airlines.Outbound indirect flight with American Airlines, departs from San Diego International on Sun, 21 Feb, arriving in Lisbon.Price includes taxes and charges.From R 5,567, select.
Lisbon.R 5,606 per passenger.Departing Sun, 15 Nov.One-way flight with British Airways.Outbound indirect flight with British Airways, departs from San Diego International on Sun, 15 Nov, arriving in Lisbon.Price includes taxes and charges.From R 5,606, select.
Lisbon.R 5,614 per passenger.Departing Wed, 14 Oct.One-way flight with British Airways.Outbound indirect flight with British Airways, departs from San Diego International on Wed, 14 Oct, arriving in Lisbon.Price includes taxes and charges.From R 5,614, select.
Lisbon.R 5,690 per passenger.Departing Wed, 28 Apr.One-way flight with Virgin Atlantic.Outbound indirect flight with Virgin Atlantic, departs from San Diego International on Wed, 28 Apr, arriving in Lisbon.Price includes taxes and charges.From R 5,690, select.
Lisbon.R 5,695 per passenger.Departing Mon, 22 Mar.One-way flight with Air France.Outbound indirect flight with Air France, departs from San Diego International on Mon, 22 Mar, arriving in Lisbon.Price includes taxes and charges.From R 5,695, select.
Lisbon.R 6,262 per passenger.Departing Tue, 28 Jul.One-way flight with Alaska Airlines.Outbound indirect flight with Alaska Airlines, departs from San Diego International on Tue, 28 Jul, arriving in Lisbon.Price includes taxes and charges.From R 6,262, select.
Lisbon.R 6,269 per passenger.Departing Sun, 20 Sep.One-way flight with British Airways.Outbound indirect flight with British Airways, departs from San Diego International on Sun, 20 Sep, arriving in Lisbon.Price includes taxes and charges.From R 6,269, select.
Lisbon.R 6,290 per passenger.Departing Tue, 18 May.One-way flight with British Airways.Outbound indirect flight with British Airways, departs from San Diego International on Tue, 18 May, arriving in Lisbon.Price includes taxes and charges.From R 6,290, select.
Lisbon.R 11,160 per passenger.Departing Mon, 29 Jun.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from San Diego International on Mon, 29 Jun, arriving in Lisbon.Price includes taxes and charges.From R 11,160, select.

Find the cheapest month to fly from San Diego to Lisbon

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like San Diego to Lisbon flights are currently cheapest in August.
Jun
from R 11,160
Jul
from R 6,262
Aug
from R 4,812
Sep
from R 6,269
Oct
from R 5,614
Nov
from R 5,606
Dec
from R 5,508
Jan
from R 5,523
Feb
from R 5,567
Mar
from R 5,695
Apr
from R 5,690
May
from R 6,290

San Diego to Lisbon: Alternative routes

Compare routes from San Diego to Lisbon below. You may find an airport to fly into that's cheaper, faster, or easier than Lisbon.

Lisbon

8km from central Lisbon
ClosestCheapest
from R 4,809
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Cascais Municipal Aerodrome

19km from central Lisbon
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San Diego to Lisbon: Flight information

The things to know before you go.
Cheapest flight foundR 4,812
Cheapest month to flyAugust

Finding cheap flights from San Diego to Lisbon: Frequently asked questions

The best price we found for a return flight from San Diego to Lisbon is R 11,627. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from San Diego to Lisbon. But we found flights with one stop from R 11,627.
As of June 2026, there are no flights flying from San Diego to Lisbon.
The cheapest month to fly from San Diego to Lisbon is usually August.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from San Diego to Lisbon Airport on Friday, 28 August 2026.
No airlines currently offer direct flights between San Diego and Lisbon Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Lisbon but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Lisbon is around 40 days in advance, so don’t leave your flight to the last minute.

The cheapest airline that flies to Lisbon is Frontier Airlines .

Travelling from San Diego to Lisbon Humberto Delgado Airport (LIS): What you need to know

  • Lisbon is eight hours ahead of San Diego. Lisbon Humberto Delgado Airport is located in Lisbon, which operates on the UTC+0 timezone.

  • Give yourself plenty of time to get on your flight from San Diego to LIS. Generally, it's best to arrive at least two hours before international departures and an hour ahead for domestic flights.

  • Peak months like July or high seasons such as Thanksgiving and Christmas will mean bigger queues at check-in and security. Play it safe and get to the terminal even earlier. Arriving two hours before a domestic flight and up four hours ahead of an international flight is a wise move.

Airports in San Diego

San Diego International Airport (SAN)

  • Consider adding a stopover to find cheap flights from San Diego to LIS. Just uncheck 'Direct flights only' when browsing departures from San Diego International Airport (SAN). Pause your trip (and maybe pocket some savings) with a stop at one of these airports:

    • Newark Liberty International Airport (EWR)

    • Boston Logan International Airport (BOS)

    • Washington Dulles International Airport (IAD)

  • The journey from central San Diego to SAN takes around 25 minutes on public transport. If you ride-share, drive or grab a taxi, you'll cover the 5 kilometres in 15 minutes or so, depending on traffic.

  • In search of a convenient hotel close to San Diego International Airport? If you're catching an early flight from San Diego to Lisbon Humberto Delgado Airport, these stays will have you sleeping just around the corner from the terminal:

  • Of all flights leaving San Diego International Airport, 74% land on schedule at their destination.

  • SAN is located at N Harbour Dr.

McClellan-Palomar Airport (CLD)

  • The distance from San Diego's city centre to CLD is around 48 kilometres. Take into account transport options and potential delays when working out the fastest route to the airport.

  • Get your holiday started early with an extra night away from home. Before catching your San Diego to LIS flight, unwind in one of these hotels near McClellan-Palomar Airport:

  • McClellan-Palomar Airport is known for its commitment to punctuality. 88% of flights departing here arrive right on target.

About Lisbon Humberto Delgado Airport (LIS)

  • If you're coming in on a late flight from San Diego to Lisbon Humberto Delgado Airport, few things top the convenience of staying close to the terminal. Collect your bags from the carousel and then be showered and resting not long after at one of these hotels near LIS:

  • For the lowest price, book your vehicle around two weeks in advance of your San Diego to Lisbon Humberto Delgado Airport flight.

Getting from Lisbon Humberto Delgado Airport (LIS) to central Lisbon

  • Lisbon Humberto Delgado Airport to central Lisbon is roughly 6 kilometres. If you're renting a car or getting a taxi, do some research to make your trip as smooth as possible. Journey times may vary based on traffic and the time of day.

  • Travelling by public transport typically takes 25 minutes.

How to find the cheapest flights from San Diego to Lisbon Humberto Delgado Airport (LIS)

  • Currently, R 4,812 is the best price we've found for a one-way ticket from San Diego to Lisbon Humberto Delgado Airport. The cheapest price for a return flight is R 11,627. Remember fares can change due to availability at the time of booking.

  • Booking ahead of time is often the key to scoring a cheap flight from San Diego to LIS. Airlines adjust prices based on demand, so the closer your departure date, the more it could cost you.

  • If you have some flexibility with your travel plans, try using the 'Whole month' search tool. It'll give you the cheapest price in every month when searching for your San Diego to Lisbon Humberto Delgado Airport ticket.

  • You don't need to check every day to find out if prices have dropped when you set up a Price Alert. We'll notify you as soon as a lower fare pops up on plane tickets from San Diego to LIS.

  • Tailor your trip using filters. Choose your preferred arrival and departure times, airlines and total journey duration. You can also sort your results by 'Cheapest,' 'Fastest' or 'Best' flights from San Diego to Lisbon Humberto Delgado Airport.

The best time to fly from San Diego to Lisbon Humberto Delgado Airport (LIS)

  • August is the most popular month for flights from San Diego to Lisbon Humberto Delgado Airport (LIS). Visit Lisbon in January if you'd rather be there when it's quieter.

  • The warmest month in Lisbon is August, with temperatures ranging between 16ºC (61ºF) and 29ºC (84ºF). Book your San Diego to LIS plane ticket then if that's your idea of comfortable weather.

  • January has temperatures of between 8ºC (46ºF) and 16ºC (61ºF). Search for cheap tickets from San Diego to Lisbon Humberto Delgado Airport around that time if you'd rather travel in cooler conditions.

More about Lisbon

  • Once you've booked your flight from San Diego to Lisbon Humberto Delgado Airport, find a hotel that keeps you close to what you want to see. Make one of these accommodation options your base for exploring Lisbon:

  • Pasteis de Belém and belém are a couple of top-rated attractions to put on your Lisbon must-do list. Keep the momentum going by heading to Real Mosteiro de Santa Maria de Belém.

Explore more of Portugal

  • Porto is just one of the many cities in Portugal waiting to be discovered after you've seen Lisbon. Around 274 kilometres away to the north, check out popular attractions including Ribeira District, Rio Douro and Livraria Lello.

  • Coimbra is another essential stop in Portugal and is around 177 kilometres north of Lisbon. No trip is complete without experiencing Biblioteca Joanina, Old Cathedral of Coimbra (Se Velha de Coimbra) and Paço das Escolas.

Plan the rest of your trip from San Diego to Lisbon

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.