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Cheap flights from Lisbon to San Francisco from $425

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Lisbon to San Francisco departing on 10/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

British Airways Logo
7:20 am - 11:28 pmLIS-SFO
24h 08m2 stops
British Airways Logo
1:11 pm - 9:45 pmSFO-LIS
24h 34m2 stops
$675British Airways
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Wed, Oct 8 - Tue, Nov 18
Delta Logo
12:45 pm - 11:41 pmLIS-SFO
18h 56m1 stop
Delta Logo
3:05 pm - 5:50 pmSFO-LIS
18h 45m1 stop
$676Delta
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Thu, Oct 16 - Thu, Oct 23
TAP AIR PORTUGAL Logo
9:40 am - 2:30 pmLIS-SFO
12h 50mnonstop
TAP AIR PORTUGAL Logo
7:10 pm - 2:15 pmSFO-LIS
11h 05mnonstop
$678TAP AIR PORTUGAL
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Wed, Nov 19 - Fri, Nov 28
Air France Logo
3:55 pm - 12:50 pmLIS-SFO
28h 55m1 stop
Air France Logo
3:05 pm - 2:50 pmSFO-LIS
15h 45m1 stop
$680Air France
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Wed, Oct 1 - Wed, Oct 8
TAP AIR PORTUGAL Logo
9:55 am - 2:30 pmLIS-SFO
12h 35mnonstop
TAP AIR PORTUGAL Logo
4:20 pm - 11:30 amSFO-LIS
11h 10mnonstop
$689TAP AIR PORTUGAL
Find Deal
Thu, Oct 9 - Wed, Oct 22
United Airlines Logo
5:05 am - 12:40 pmLIS-SFO
15h 35m1 stop
United Airlines Logo
11:40 am - 9:20 amSFO-LIS
13h 40m1 stop
$694United Airlines
Find Deal
Wed, Oct 8 - Tue, Oct 14
United Airlines Logo
5:05 am - 12:40 pmLIS-SFO
15h 35m1 stop
United Airlines Logo
9:05 am - 9:20 amSFO-LIS
16h 15m2 stops
$695United Airlines
Find Deal
Wed, Oct 8 - Thu, Nov 20
American Airlines Logo
7:05 am - 6:34 pmLIS-SFO
19h 29m2 stops
American Airlines Logo
11:35 pm - 9:05 amSFO-LIS
25h 30m1 stop
$703American Airlines
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Fri, Dec 19 - Sat, Jan 3
Air France Logo
6:50 pm - 12:50 pmLIS-SFO
26h 00m1 stop
Air France Logo
3:05 pm - 5:50 pmSFO-LIS
18h 45m1 stop
$704Air France
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Tue, Sep 30 - Tue, Oct 7
American Airlines Logo
7:00 am - 6:24 pmLIS-SFO
19h 24m2 stops
American Airlines Logo
2:30 pm - 6:00 pmSFO-LIS
19h 30m2 stops
$710American Airlines
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Thu, Nov 20 - Thu, Nov 27

Delta flights from Lisbon to San Francisco

Our best Delta deals on Lisbon to San Francisco flight tickets
Delta
Oct 16
LIS12:45 pmLisbon Humberto Delgado
18h 56m
1 stop
SFO11:41 pmSan Francisco
Oct 23
SFO3:05 pmSan Francisco
18h 45m
1 stop
LIS5:50 pmLisbon Humberto Delgado
$676
Find similar
Delta
Sep 30
LIS11:40 amLisbon Humberto Delgado
20h 41m
2 stops
SFO12:21 amSan Francisco
Oct 7
SFO1:25 pmSan Francisco
20h 25m
2 stops
LIS5:50 pmLisbon Humberto Delgado
$701
Find similar
Delta
Sep 30
LIS11:40 amLisbon Humberto Delgado
20h 41m
2 stops
SFO12:21 amSan Francisco
Oct 7
SFO9:55 amSan Francisco
20h 55m
2 stops
LIS2:50 pmLisbon Humberto Delgado
$705
Find similar

Air France flights from Lisbon to San Francisco

Our best Air France deals on Lisbon to San Francisco flight tickets
Air France
Oct 1
LIS3:55 pmLisbon Humberto Delgado
28h 55m
1 stop
SFO12:50 pmSan Francisco
Oct 8
SFO3:05 pmSan Francisco
15h 45m
1 stop
LIS2:50 pmLisbon Humberto Delgado
$680
Find similar
Air France
Sep 30
LIS6:50 pmLisbon Humberto Delgado
26h 00m
1 stop
SFO12:50 pmSan Francisco
Oct 7
SFO3:05 pmSan Francisco
18h 45m
1 stop
LIS5:50 pmLisbon Humberto Delgado
$704
Find similar

momondo Fare Finder

 
Customize 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, momondo users made 832,500 searches. Data last updated September 17, 2025.
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

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Wed 10/8

7:20 am-11:28 pm

2 stops24h 08m

San Francisco

Tue 11/18

1:11 pm-9:45 pm

2 stops24h 34m

$675

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Thu 10/16

12:45 pm-11:41 pm

1 stop18h 56m

San Francisco

Thu 10/23

3:05 pm-5:50 pm

1 stop18h 45m

$676

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Wed 11/19

9:40 am-2:30 pm

Nonstop12h 50m

San Francisco

Fri 11/28

7:10 pm-2:15 pm

Nonstop11h 05m

$678

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Wed 10/1

3:55 pm-12:50 pm

1 stop28h 55m

San Francisco

Wed 10/8

3:05 pm-2:50 pm

1 stop15h 45m

$680

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Thu 10/9

9:55 am-2:30 pm

Nonstop12h 35m

San Francisco

Wed 10/22

4:20 pm-11:30 am

Nonstop11h 10m

$689

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Wed 10/8

5:05 am-12:40 pm

1 stop15h 35m

San Francisco

Tue 10/14

11:40 am-9:20 am

1 stop13h 40m

$694

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Wed 10/8

5:05 am-12:40 pm

1 stop15h 35m

San Francisco

Thu 11/20

9:05 am-9:20 am

2 stops16h 15m

$695

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Fri 12/19

7:05 am-6:34 pm

2 stops19h 29m

San Francisco

Sat 1/3

11:35 pm-9:05 am

1 stop25h 30m

$703

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Tue 9/30

6:50 pm-12:50 pm

1 stop26h 00m

San Francisco

Tue 10/7

3:05 pm-5:50 pm

1 stop18h 45m

$704

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Thu 11/20

7:00 am-6:24 pm

2 stops19h 24m

San Francisco

Thu 11/27

2:30 pm-6:00 pm

2 stops19h 30m

$710

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to San Francisco from

How to get the cheapest flight ticket from Lisbon to San Francisco

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 San Francisco?

If you aren’t able to travel to San Francisco during the month of February, then flying in April is also cheap. Prices for this month can be found on momondo for an average of $771.

What is the cheapest day to depart on your flight to San Francisco?

The cheapest day to depart from Lisbon to San Francisco is on a Wednesday when prices can be found for as low as $834. The most expensive day to fly to San Francisco is Monday, with ticket prices averaging around $1,326.

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

Our data shows that the cheapest Lisbon to San Francisco flights are usually those with departure times in the afternoon. Our users have found flights to San Francisco in the afternoon for as low as $613. Flights at noon are often more expensive with an average ticket price of $957.

What is the cheapest Lisbon Humberto Delgado to San Francisco flight route?

Fly from Lisbon Humberto Delgado to San Francisco for the best Lisbon Humberto Delgado - San Francisco flight prices

How far in advance should I book a flight to San Francisco?

You are more likely to see cheaper flights to San Francisco from Lisbon when booking weeks ahead of your departure date. In general, you can expect to find flights to San Francisco for around $812 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Francisco from Lisbon for as low as $682 on momondo.

What cabin class options are available on Lisbon Humberto Delgado to San Francisco flights?

There are 3 cabin classes available to choose from on Lisbon Humberto Delgado to San Francisco flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Lisbon to San Francisco flight prices changed over time?

As of September 2025, prices for Lisbon to San Francisco flights are approximately 25% cheaper when compared to flights at the same time last year.

When to book flights from Lisbon to San Francisco

Are you open to changing your travel dates? Check out the ideal times to fly from Lisbon to San Francisco according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Lisbon to San Francisco (LIS to SFO) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Lisbon to San Francisco

Best Price Found

$499

Fastest flight time

12h 35m

Direct flights

Tue, Wed, Thu, Fri and Sun

Airports in San Francisco

1 airport
The best one-way flight to San Francisco from Lisbon in the past 72 hours is $499. The best round-trip flight deal from Lisbon to San Francisco found on momondo in the last 72 hours is $834.
The fastest flight from Lisbon to San Francisco takes 12h 35m
Direct flights go from Lisbon to San Francisco on Tuesday, Wednesday, Thursday, Friday and Sunday. The only airline offering direct flights is TAP AIR PORTUGAL.
There is 1 airport near San Francisco: San Francisco (SFO)
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  • How far is Lisbon Humberto Delgado to San Francisco by plane?

    The distance between Lisbon Humberto Delgado and San Francisco is about 5660.0 mi. A reasonable flight in good conditions will take 12h 35m.

  • When did momondo last update prices for flights from Lisbon Humberto Delgado Airport to San Francisco Airport?

    Prices for flights from Lisbon Humberto Delgado Airport to San Francisco Airport refresh daily.

  • How many operators does momondo search for flights from Lisbon Humberto Delgado Airport to San Francisco Airport?

  • How old do you have to be to fly from Lisbon Humberto Delgado Airport to San Francisco Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Lisbon Humberto Delgado Airport to San Francisco Airport.

  • What documentation or ID do you need to fly to San Francisco Airport?

    The necessary travel and health documents for your San Francisco Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Lisbon to San Francisco?

  • What is the most popular airline from Lisbon to San Francisco?

Best airlines flying from Lisbon to San Francisco

Compare and see reviews for airlines that fly from Lisbon to San Francisco with momondo
Airline
Rating
Free Cancellation
Price
LEVELPriceFrom $473Free CancellationRating
4.0
4 reviews
Search LEVEL flights
British AirwaysPriceFrom $572Free CancellationRating
6.7
7,367 reviews
Search British Airways flights
DeltaPriceFrom $587Free CancellationRating
7.9
7,961 reviews
Search Delta flights
TAP AIR PORTUGALPriceFrom $604Free CancellationRating
7.1
1,977 reviews
Search TAP AIR PORTUGAL flights
Air FrancePriceFrom $657Free CancellationRating
7.4
1,468 reviews
Search Air France flights
LufthansaPriceFrom $659Free CancellationRating
6.8
7,409 reviews
Search Lufthansa flights
American AirlinesPriceFrom $708Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $731Free CancellationRating
7.4
8,926 reviews
Search United Airlines flights

  • TAP AIR PORTUGAL Flights From Lisbon to San Francisco

    TAP AIR PORTUGAL flies from Lisbon to San Francisco around 2 times per week, with 1,977 momondo users rating the airline 7.1/10. The cheapest TAP AIR PORTUGAL deal from Lisbon to San Francisco in the last 72 hours was $604 (round-trip), much lower than the average airfare cost of $892 for TAP AIR PORTUGAL flights on this route.

Traveling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Santa Cruz
Carmel-by-the-Sea
Modesto
Sonoma
Calistoga
Bodega Bay
Roseville
Hayward
Big Sur
Santa Clara
Daly City
Fremont
Berkeley
Half Moon Bay
Walnut Creek
Vallejo
Redwood City
Salinas
South San Francisco
Fairfield

Why use momondo?

Why should I use momondo to find a flight deal from Lisbon to San Francisco?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Lisbon to San Francisco. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Lisbon to San Francisco with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to San Francisco from Lisbon with this policy.

How can momondo help me find flights from Lisbon to San Francisco?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Lisbon to San Francisco.

I’m not ready to book a flight from Lisbon to San Francisco right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Lisbon to San Francisco flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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