Cheap flights from Cardiff to San Francisco from £700
This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/10. Fares are subject to change and may not be available on all flights or dates of travel.
Cheap flight deals from Cardiff to San Francisco
Discover tips and strategies to find the most affordable flight options for your journey from Cardiff (CWL) 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 29 August 2025.
Round-trip from | £700 |
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Find flight deals from Cardiff to San Francisco
Cheapest flights from Cardiff to San FranciscoExplore the most affordable flight options available from Cardiff to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 August 2025.
Explore the most affordable flight options available from Cardiff to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 August 2025.
Cheapflights Fare Finder
Use the filters below to find and compare flights from Cardiff to San Francisco that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
CardiffSan Francisco
CWL - SFO
CWLSFO
Cardiff Wales
Sat 11/10
17:35-17:45
2 stops32h 10m
San Francisco
Sat 18/10
11:25-16:45
2 stops21h 20m
CardiffSan Francisco
CWL - SFO
CWLSFO
Cardiff Wales
Sat 11/10
09:45-22:35
2 stops20h 50m
San Francisco
Fri 17/10
00:35-09:15
2 stops24h 40m
CardiffSan Francisco
CWL - SFO
CWLSFO
Cardiff Wales
Sat 11/10
17:35-11:45
1 stop26h 10m
San Francisco
Sat 18/10
13:45-16:45
1 stop19h 00m
CardiffSan Francisco
CWL - SFO
CWLSFO
Cardiff Wales
Sat 11/10
09:00-09:30
3 stops32h 30m
San Francisco
Sat 18/10
07:30-10:35
3 stops19h 05m
CardiffSan Francisco
CWL - SFO
CWLSFO
Cardiff Wales
Fri 19/12
17:25-20:06
2 stops34h 41m
San Francisco
Fri 2/1
19:17-09:50
2 stops54h 33m
CardiffSan Francisco
CWL - SFO
CWLSFO
Cardiff Wales
Fri 19/12
22:25-15:35
1 stop25h 10m
San Francisco
Fri 2/1
17:20-23:20
1 stop22h 00m
CardiffSan Francisco
CWL - SFO
CWLSFO
Cardiff Wales
Fri 19/12
17:25-11:50
1 stop26h 25m
San Francisco
Fri 2/1
07:00-09:50
2 stops18h 50m
Best time to book a flight from Cardiff to San Francisco
Have a flexible travel schedule? Discover the best time to fly to San Francisco from Cardiff with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Cardiff to San Francisco
Related info for your journey
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Alternative routes for Cardiff to San Francisco
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How does Cheapflights help users find flights from Cardiff to San Francisco?
Cheapflights makes it easy to find Cardiff to San Francisco flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.
Why should you use Cheapflights to find cheap flight tickets from Cardiff to San Francisco?
By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to San Francisco from Cardiff.
Can Cheapflights find flights from Cardiff to San Francisco with no change fees?
Certainly. Search results for flights to San Francisco from Cardiff shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.
Can Cheapflights notify me if prices for flights from Cardiff to San Francisco become cheaper?
Yes, Cheapflights offers price alerts on Cardiff to San Francisco flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.