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Cheap flights from Lisbon to San Francisco from £423

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 16/5. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — SFO
11 Apr — 18 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Lisbon to San Francisco

Enter your travel dates to find the best prices.

Cheapest flights from Lisbon to San Francisco
Explore the most affordable flight options available from Lisbon to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 March 2026.

Sat 16/521:15
LIS
-
SFO
1 stop28h 40m
Multiple Airlines
Sun 31/519:40
SFO
-
LIS
1 stop17h 00m
Multiple Airlines
Deal found 11/3£423
Wed 22/421:15
LIS
-
SFO
1 stop28h 40m
LEVEL
Thu 30/419:40
SFO
-
LIS
1 stop33h 40m
LEVEL
Deal found 7/3£436
Wed 13/521:15
LIS
-
SFO
1 stop28h 40m
Iberia
Sun 31/519:40
SFO
-
LIS
1 stop17h 00m
Iberia
Deal found 11/3£442
Sun 17/507:20
LIS
-
SFO
1 stop18h 35m
Multiple Airlines
Sun 31/519:40
SFO
-
LIS
1 stop17h 00m
Multiple Airlines
Deal found 11/3£459
Thu 14/509:10
LIS
-
SFO
1 stop16h 45m
Iberia
Sun 31/519:40
SFO
-
LIS
1 stop17h 00m
Iberia
Deal found 11/3£471
Tue 12/521:15
LIS
-
SFO
2 stops32h 45m
Iberia
Sun 31/519:40
SFO
-
LIS
1 stop17h 00m
Iberia
Deal found 11/3£486
Thu 23/409:10
LIS
-
SFO
1 stop16h 45m
LEVEL
Thu 30/419:40
SFO
-
LIS
1 stop17h 50m
LEVEL
Deal found 9/3£499
Mon 11/521:20
LIS
-
SFO
2 stops34h 39m
Iberia
Sun 31/519:40
SFO
-
LIS
1 stop17h 00m
Iberia
Deal found 11/3£509
Sun 17/522:10
LIS
-
SFO
2 stops31h 50m
Iberia
Sun 31/519:40
SFO
-
LIS
1 stop17h 00m
Iberia
Deal found 11/3£531
Thu 21/505:00
LIS
-
SFO
1 stop14h 45m
Delta
Sat 30/513:35
SFO
-
LIS
2 stops20h 15m
Delta
Deal found 10/3£533
Wed 8/415:35
LIS
-
SFO
1 stop28h 10m
Multiple Airlines
Wed 15/420:10
SFO
-
LIS
1 stop18h 15m
Multiple Airlines
Deal found 9/3£535
Tue 17/311:25
LIS
-
SFO
1 stop32h 25m
Multiple Airlines
Tue 24/316:40
SFO
-
LIS
1 stop22h 45m
Multiple Airlines
Deal found 8/3£536

Find flight deals from Lisbon to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from Lisbon (LIS) to San Francisco (SFO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 12 March 2026.

Round-trip from

£423

Popular in

June

Cheapest in

February

Average price

£650
16/5-31/5
  • 16/5-31/5
  • 2 total stops
  • 45h 40m total
  • Lisbon to San Francisco
Search Deals
Highest demand for flights based on searches. 0% potential increase in price (£4 potential increase over avg. return price).
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Cheapest flight prices on average. 0% potential price decrease (£3 potential savings vs. average return price).
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Average for round-trip flights in March 2026
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Cheapflights Fare Finder

 
Customise your flight search to find flights from Lisbon to San Francisco 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, Cheapflights users made 858,174 searches. Data last updated 12 March 2026.
Use the filters below to find and compare flights from Lisbon to San Francisco that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Tue 7/4

15:35-11:45

1 stop28h 10m

San Francisco

Wed 15/4

20:10-22:25

1 stop18h 15m

£535

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Tue 21/4

05:00-11:45

1 stop14h 45m

San Francisco

Tue 28/4

14:57-17:50

2 stops18h 53m

£535

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Fri 22/5

05:00-19:20

2 stops22h 20m

San Francisco

Tue 26/5

09:30-14:55

2 stops21h 25m

£537

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Thu 16/4

07:25-20:00

1 stop20h 35m

San Francisco

Mon 20/4

13:45-22:45

1 stop25h 00m

£557

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Thu 30/4

05:05-15:25

1 stop18h 20m

San Francisco

Fri 8/5

19:15-21:55

1 stop18h 40m

£559
Fastest return journey

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Thu 21/5

05:05-12:40

1 stop15h 35m

San Francisco

Sat 30/5

11:10-09:20

1 stop14h 10m

£559

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Thu 14/5

05:05-12:40

1 stop15h 35m

San Francisco

Sat 30/5

08:05-09:20

1 stop17h 15m

£560

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Sat 9/5

05:05-15:25

1 stop18h 20m

San Francisco

Fri 15/5

19:15-21:55

1 stop18h 40m

£561

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Mon 6/4

05:35-12:50

1 stop15h 15m

San Francisco

Wed 15/4

14:57-17:50

2 stops18h 53m

£565

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Fri 24/4

05:05-12:40

1 stop15h 35m

San Francisco

Sat 2/5

23:05-10:30

1 stop27h 25m

£571

Flights are sorted by cheapest return flights first.

Deals found on 8/3

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

Best time to book a flight from Lisbon to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Lisbon with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Lisbon to San Francisco

How often are flights from Lisbon to San Francisco delayed?

About 12% of weekly flights between Lisbon and San Francisco have experienced delays in the past year, with the average delay time being 119 minutes.

What is the most punctual flight time for Lisbon to San Francisco flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Thursday tends to have the lowest number of delays on this route, whereas Saturday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Lisbon to San Francisco flights?

Over the past year, TAP AIR PORTUGAL have had the lowest number of delays on this route, with just 12% of flights being delayed.

Reviews of airlines servicing San Francisco

Get insights into the airlines that provide service to San Francisco. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Francisco. Reviews last updated 12 March 2026.
Check out reviews from past customers who have flown with TAP AIR PORTUGAL from Lisbon to San Francisco to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
TAP AIR PORTUGAL
7.1
Good
2,164 reviews
Check prices

Boarding

7.0

Crew

7.8

Comfort

7.1

Entertainment

6.3

Overall

7.1

Food

6.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

LIS - EWR

Both flights returning to newirk airport was delayed by over a hour with minimum early notification
TAP AIR PORTUGAL
7.1
Good
2,164 reviews
TAP AIR PORTUGAL
7.1
Good
2,164 reviews
Check prices

Boarding

7.0

Crew

7.8

Comfort

7.1

Entertainment

6.3

Overall

7.1

Food

6.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

LIS - EWR

Both flights returning to newirk airport was delayed by over a hour with minimum early notification

Travelling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Santa Cruz
Newark
San Bruno
Bodega Bay
South San Francisco
Sunnyvale

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Lisbon to San Francisco

Discover the top airline that operate flights from Lisbon to San Francisco. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 12 March 2026.
AirlineCheapestAverageFlexibilityOn-time
TAP AIR PORTUGALCheapest£515Average£689FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights

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