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Cheap flights from Cardiff to San Francisco from £558

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 17/3. Fares are subject to change and may not be available on all flights or dates of travel.
CWL — SFO
5 feb — 12 feb1
1 adult

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 31 gennaio 2025.

Round-trip from

£558

Popular in

August

Cheapest in

January

Average price

£513
KLM
  • KLM
  • 17/3-24/3
  • 2 total stops
  • 45h 30m total
  • Cardiff to San Francisco
Search Deals
Highest demand for flights based on searches. 35% potential increase in price (£390 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease (£54 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2025
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Find flight deals from Cardiff to San Francisco

Cheapest flights from Cardiff to San Francisco
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 31 gennaio 2025.

lun 17/317:25CWL - SFO
1 stop26h 25mKLM
lun 24/314:50SFO - CWL
1 stop19h 05mKLM
Deal found 31/1£558
sab 8/310:25CWL - SFO
2 stops20h 54mVirgin Atlantic
mer 12/307:25SFO - CWL
2 stops19h 25mVirgin Atlantic
Deal found 30/1£755
ven 16/509:50CWL - SFO
2 stops21h 30mDelta
ven 23/513:00SFO - CWL
2 stops20h 05mDelta
Deal found 30/1£818
lun 17/317:25CWL - SFO
3 stops31h 20mMultiple Airlines
lun 24/316:25SFO - CWL
2 stops17h 30mMultiple Airlines
Deal found 31/1£1,126

Find flights from Cardiff to San Francisco within your budget

Customise your flight search to find flights from Cardiff 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 31 gennaio 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

CardiffSan Francisco

CWL - SFO

CWLSFO

Cardiff Wales

lun 17/3

17:25-12:50

1 stop26h 25m

San Francisco

lun 24/3

14:50-16:55

1 stop19h 05m

£558

CardiffSan Francisco

CWL - SFO

CWLSFO

Cardiff Wales

sab 8/3

10:25-23:19

2 stops20h 54m

San Francisco

mer 12/3

07:25-09:50

2 stops19h 25m

£755

CardiffSan Francisco

CWL - SFO

CWLSFO

Cardiff Wales

ven 16/5

09:50-23:20

2 stops21h 30m

San Francisco

ven 23/5

13:00-17:05

2 stops20h 05m

£818

CardiffSan Francisco

CWL - SFO

CWLSFO

Cardiff Wales

lun 17/3

17:25-17:45

3 stops31h 20m

San Francisco

lun 24/3

16:25-16:55

2 stops17h 30m

£1,126

Flights are sorted by cheapest return flights first.

Deals found on 31/1

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.
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.

Travel insights for flights from Cardiff to San Francisco

Get recent, data-driven insights about flights from Cardiff to San Francisco including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Cardiff to San Francisco?

Currently, February is the cheapest month in which you can book a flight from Cardiff to San Francisco (average of £538). Flying from Cardiff to San Francisco in July is currently the most expensive (average of £803). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Rainfall in San Francisco by month

Plan your trip to San Francisco by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Francisco ranges from 0.0 - 112.0 inches per month. January is typically the wettest month, when rainfall can reach 112.0 mm. July is typically the driest time to visit San Francisco when rainfall is around 0.0 mm.

Temperature in San Francisco by month

Plan your trip to San Francisco by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Francisco, use this chart to help with planning. For those seeking warmer temperatures, September is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 11.0 C).

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 31 gennaio 2025.
Delta
8.0
Very Good
8,454 reviews
Check prices

Overall

8.0

Comfort

8.0

Boarding

8.2

Crew

8.5

Food

7.3

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta
8.0
Very Good
8,454 reviews
Delta
8.0
Very Good
8,454 reviews
Check prices

Overall

8.0

Comfort

8.0

Boarding

8.2

Crew

8.5

Food

7.3

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

KLM
7.8
Good
1,335 reviews
Delta
8.0
Very Good
8,454 reviews
Check prices

Overall

8.0

Comfort

8.0

Boarding

8.2

Crew

8.5

Food

7.3

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Virgin Atlantic
7.5
Good
656 reviews
Delta
8.0
Very Good
8,454 reviews
Check prices

Overall

8.0

Comfort

8.0

Boarding

8.2

Crew

8.5

Food

7.3

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Cardiff to San Francisco. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Cardiff to San Francisco round-trip?

    Our cheapest airline available from Cardiff to San Francisco is KLM. Our recent data shows that you can find tickets from as low as £558 on this airline. Additional options worth looking into are Virgin Atlantic and Delta, starting at £755 and £818 round-trip. You may be able to fly from Cardiff to San Francisco for 37% less than the average price by searching for these airlines.

  • Can I find deals for flights from Cardiff to San Francisco that include hotel bookings?

    Yes. In addition to deals on Cardiff to San Francisco flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Cardiff to San Francisco?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Cardiff to San Francisco.

  • Can I find deals for business class flights from Cardiff to San Francisco?

    Yes. Cheapflights offers flight deals from Cardiff to San Francisco by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Cardiff to San Francisco?

    Currently, February is the cheapest month in which you can book a flight from Cardiff to San Francisco (average of £538). Flying from Cardiff to San Francisco in July is currently the most expensive (average of £803). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Cardiff?

Book flights to Cardiff if you plan to visit one of these locations
Santa Cruz
San Mateo
Los Banos
Vallejo
South San Francisco
Pacific Grove
Union City

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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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.

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