How do I get Price Alerts for flights from Cardiff to San Francisco?

Price Alerts will notify you by email when the price for flights to San Francisco from Cardiff decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.

How can I save money on flights from Cardiff to San Francisco with momondo?

Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore” . Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.

How does momondo find its flight prices?

We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.

When did momondo last update prices for flights from Cardiff Wales Airport to San Francisco Airport?

Prices for flights from Cardiff Wales Airport to San Francisco Airport refresh daily.

How old do you have to be to fly from Cardiff Wales 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 Cardiff Wales 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.

$799 Cheap Flights from Cardiff to San Francisco in 2026

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Find the cheapest flights from Cardiff to San Francisco

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

5:30 pm - 11:50 am

CWL

SFO

26h 20m

1 stop

2:55 pm - 4:55 pm

SFO

CWL

19h 00m

1 stop

$869KLM

Sun, Mar 1 - Mon, Mar 9

5:30 pm - 11:50 am

CWL

SFO

26h 20m

1 stop

2:20 pm - 4:55 pm

SFO

CWL

19h 35m

2 stops

$896KLM

Sun, Mar 1 - Mon, Mar 9

5:30 pm - 3:51 pm

CWL

SFO

30h 21m

2 stops

8:00 am - 9:50 am

SFO

CWL

18h 50m

2 stops

$902KLM

Sun, Mar 1 - Mon, Mar 9

5:20 pm - 11:50 am

CWL

SFO

26h 30m

1 stop

1:55 pm - 4:55 pm

SFO

CWL

19h 00m

1 stop

$949KLM

Mon, Feb 16 - Mon, Feb 23

10:20 am - 10:36 pm

CWL

SFO

19h 16m

2 stops

7:00 am - 9:50 am

SFO

CWL

19h 50m

2 stops

$1,001Virgin Atlantic

Thu, Mar 19 - Thu, Mar 26

10:20 am - 10:36 pm

CWL

SFO

19h 16m

2 stops

2:55 pm - 4:45 pm

SFO

CWL

18h 50m

1 stop

$1,009Delta

Thu, Mar 19 - Thu, Mar 26

10:20 am - 12:50 pm

CWL

SFO

33h 30m

1 stop

2:55 pm - 4:45 pm

SFO

CWL

18h 50m

1 stop

$1,010Multiple Airlines

Thu, Mar 19 - Thu, Mar 26

5:15 pm - 8:56 am

CWL

SFO

46h 41m

2 stops

2:20 pm - 8:15 am

SFO

CWL

34h 55m

2 stops

$1,021Virgin Atlantic

Fri, Mar 20 - Fri, Mar 27

5:20 pm - 11:50 am

CWL

SFO

26h 30m

1 stop

3:40 pm - 9:50 am

SFO

CWL

34h 10m

2 stops

$1,149KLM

Mon, Feb 16 - Mon, Feb 23

5:15 pm - 12:50 pm

CWL

SFO

26h 35m

1 stop

2:55 pm - 8:15 am

SFO

CWL

34h 20m

1 stop

$1,155Multiple Airlines

Fri, Mar 20 - Fri, Mar 27

KLM flights from Cardiff to San Francisco

Our best KLM deals on Cardiff to San Francisco flight tickets

KLM

Mar 1

CWL5:30 pmCardiff Wales

26h 20m

1 stop

SFO11:50 amSan Francisco

Mar 9

SFO2:55 pmSan Francisco

19h 00m

1 stop

CWL4:55 pmCardiff Wales

$869

KLM

Mar 1

CWL5:30 pmCardiff Wales

26h 20m

1 stop

SFO11:50 amSan Francisco

Mar 9

SFO2:20 pmSan Francisco

19h 35m

2 stops

CWL4:55 pmCardiff Wales

$896

KLM

Mar 1

CWL5:30 pmCardiff Wales

30h 21m

2 stops

SFO3:51 pmSan Francisco

Mar 9

SFO8:00 amSan Francisco

18h 50m

2 stops

CWL9:50 amCardiff Wales

$902

Virgin Atlantic flights from Cardiff to San Francisco

Our best Virgin Atlantic deals on Cardiff to San Francisco flight tickets

Virgin Atlantic

Mar 19

CWL10:20 amCardiff Wales

19h 16m

2 stops

SFO10:36 pmSan Francisco

Mar 26

SFO7:00 amSan Francisco

19h 50m

2 stops

CWL9:50 amCardiff Wales

$1,001

Virgin Atlantic

Mar 20

CWL5:15 pmCardiff Wales

46h 41m

2 stops

SFO8:56 amSan Francisco

Mar 27

SFO2:20 pmSan Francisco

34h 55m

2 stops

CWL8:15 amCardiff Wales

$1,021

Virgin Atlantic

Mar 20

CWL5:15 pmCardiff Wales

26h 35m

1 stop

SFO12:50 pmSan Francisco

Mar 27

SFO9:35 pmSan Francisco

35h 10m

2 stops

CWL3:45 pmCardiff Wales

$1,183

Fly from

Fly to

Route

Depart

Return

Price

CardiffSan Francisco

CWL - SFO

CWLSFO

Cardiff Wales

Sun 3/1

5:30 pm-11:50 am

1 stop26h 20m

San Francisco

Mon 3/9

2:55 pm-4:55 pm

1 stop19h 00m

$869

CardiffSan Francisco

CWL - SFO

CWLSFO

Cardiff Wales

Sun 3/1

5:30 pm-11:50 am

1 stop26h 20m

San Francisco

Mon 3/9

2:20 pm-4:55 pm

2 stops19h 35m

$896

CardiffSan Francisco

CWL - SFO

CWLSFO

Cardiff Wales

Sun 3/1

5:30 pm-3:51 pm

2 stops30h 21m

San Francisco

Mon 3/9

8:00 am-9:50 am

2 stops18h 50m

$902

CardiffSan Francisco

CWL - SFO

CWLSFO

Cardiff Wales

Mon 2/16

5:20 pm-11:50 am

1 stop26h 30m

San Francisco

Mon 2/23

1:55 pm-4:55 pm

1 stop19h 00m

$949

CardiffSan Francisco

CWL - SFO

CWLSFO

Cardiff Wales

Thu 3/19

10:20 am-10:36 pm

2 stops19h 16m

San Francisco

Thu 3/26

7:00 am-9:50 am

2 stops19h 50m

$1,001

CardiffSan Francisco

CWL - SFO

CWLSFO

Cardiff Wales

Thu 3/19

10:20 am-10:36 pm

2 stops19h 16m

San Francisco

Thu 3/26

2:55 pm-4:45 pm

1 stop18h 50m

$1,009

CardiffSan Francisco

CWL - SFO

CWLSFO

Cardiff Wales

Thu 3/19

10:20 am-12:50 pm

1 stop33h 30m

San Francisco

Thu 3/26

2:55 pm-4:45 pm

1 stop18h 50m

$1,010

CardiffSan Francisco

CWL - SFO

CWLSFO

Cardiff Wales

Fri 3/20

5:15 pm-8:56 am

2 stops46h 41m

San Francisco

Fri 3/27

2:20 pm-8:15 am

2 stops34h 55m

$1,021

CardiffSan Francisco

CWL - SFO

CWLSFO

Cardiff Wales

Mon 2/16

5:20 pm-11:50 am

1 stop26h 30m

San Francisco

Mon 2/23

3:40 pm-9:50 am

2 stops34h 10m

$1,149

CardiffSan Francisco

CWL - SFO

CWLSFO

Cardiff Wales

Fri 3/20

5:15 pm-12:50 pm

1 stop26h 35m

San Francisco

Fri 3/27

2:55 pm-8:15 am

1 stop34h 20m

$1,155

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

When to book flights from Cardiff to San Francisco

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

Estimated round-trip price

Cheap Cardiff to San Francisco (CWL to SFO) flight deals and tips

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

Fastest flight time	26h 20m
Direct flights	None

The fastest flight from Cardiff to San Francisco takes 26h 20m

There are no direct flights from Cardiff to San Francisco. There are no popular flight routes from Cardiff to San Francisco.

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How far is Cardiff Wales to San Francisco by plane?
San Francisco is 5259.0 mi away from Cardiff Wales. By plane, this route typically takes 26h 20m.
When did momondo last update prices for flights from Cardiff Wales Airport to San Francisco Airport?
Prices for flights from Cardiff Wales Airport to San Francisco Airport refresh daily.
How old do you have to be to fly from Cardiff Wales 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 Cardiff Wales 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.

How do I get Price Alerts for flights from Cardiff to San Francisco?
Price Alerts will notify you by email when the price for flights to San Francisco from Cardiff decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.
How can I save money on flights from Cardiff to San Francisco with momondo?
Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore”. Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.
How does momondo find its flight prices?
We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.

Santa Cruz

Carmel-by-the-Sea

Modesto

Sonoma

Bodega Bay

Roseville

Hayward

Calistoga

Santa Clara

Walnut Creek

Berkeley

Big Sur

Fremont

Half Moon Bay

Daly City

Salinas

Vallejo

Sunnyvale

Livermore

Turlock

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Cardiff to San Francisco for you.

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

Flights from Cardiff to San Francisco with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search for Cardiff to San Francisco flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Yes momondo offers price alerts on flights to San Francisco from Cardiff. 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 San Francisco trip

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Fri 3/6

Fri 3/13

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Cheap flights from Cardiff to San Francisco from $869

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Cardiff to San Francisco departing on 3/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Cardiff to San Francisco

Cheap round-trip flights

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KLM flights from Cardiff to San Francisco

Our best KLM deals on Cardiff to San Francisco flight tickets

Virgin Atlantic flights from Cardiff to San Francisco

Our best Virgin Atlantic deals on Cardiff to San Francisco flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Cardiff to San Francisco that are best for you.

When to book flights from Cardiff to San Francisco

Cheap Cardiff to San Francisco (CWL to SFO) flight deals and tips

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

Fastest flight time

Direct flights

How far is Cardiff Wales to San Francisco by plane?

When did momondo last update prices for flights from Cardiff Wales Airport to San Francisco Airport?

How old do you have to be to fly from Cardiff Wales Airport to San Francisco Airport?

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

How do I get Price Alerts for flights from Cardiff to San Francisco?

How can I save money on flights from Cardiff to San Francisco with momondo?

How does momondo find its flight prices?

Traveling to a place near San Francisco?

Why use momondo?

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

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

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

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

An easier way to manage your San Francisco 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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing California

Cabin classes currently available on flights to San Francisco

List of cabin classes available on flights landing in San Francisco. Availability may vary depending on flight origin and airline.

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