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

Currently, July is the cheapest month in which you can book a flight from San Francisco Bay Area to Cardiff (average of £169). Flying from San Francisco Bay Area to Cardiff in December is currently the most expensive (average of £263). 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.

In terms of precipitation, rainfall in Cardiff ranges from 50.0 - 90.0 inches per month. January is typically the wettest month, when rainfall can reach 90.0 mm. April is typically the driest time to visit Cardiff when rainfall is around 50.0 mm.

If weather is an important factor for your trip to Cardiff, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 18.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 4.0 C).

What are the most popular routes from San Francisco Bay Area to Cardiff?

While some choose either San Francisco - Cardiff Wales or Oakland - Cardiff Wales, San Jose - Cardiff Wales is the most popular route from San Francisco Bay Area to Cardiff.

What is the cheapest time of day to fly from XIH to CWL?

When flying from San Francisco Bay Area to Cardiff, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What airport do you fly into for flights to Cardiff from San Francisco Bay Area?

Cardiff Wales (CWL) is the airport you will fly into if you book a flight from San Francisco Bay Area to Cardiff. It is only a 9.1 mi journey from Cardiff Wales (CWL) to Cardiff’s city center.

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

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

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

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

£614+ Flights from San Francisco Bay Area to Cardiff

Cheap flight deals from San Francisco Bay Area to Cardiff

Round-trip from	£614

KLM
11/8-18/8
4 total stops
55h 23m total
San Francisco Bay Area to Cardiff

Search Deals

Find flight deals from San Francisco Bay Area to Cardiff

Cheapest flights from San Francisco Bay Area to Cardiff
Explore the most affordable flight options available from San Francisco Bay Area to Cardiff. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 July 2025.

Mon 11/806:25SJC - CWL

2 stops18h 50mKLM

Mon 18/817:15CWL - SJC

2 stops36h 33mKLM

Deal found 12/7£614

Wed 3/907:05SFO - CWL

2 stops18h 10mVirgin Atlantic

Tue 11/1117:25CWL - SFO

1 stop26h 25mVirgin Atlantic

Deal found 11/7£617

Wed 3/1205:55OAK - CWL

2 stops43h 55mKLM

Sun 7/1210:20CWL - OAK

2 stops38h 11mKLM

Deal found 12/7£685

Wed 3/913:45SFO - CWL

1 stop35h 30mKLM

Tue 11/1117:25CWL - SFO

1 stop26h 25mKLM

Deal found 11/7£710

Sun 20/700:50SFO - CWL

2 stops24h 25mDelta

Fri 15/809:50CWL - SFO

2 stops21h 53mDelta

Deal found 12/7£740

Wed 3/917:45SFO - CWL

2 stops18h 00mMultiple Airlines

Tue 11/1116:45CWL - SFO

3 stops35h 25mMultiple Airlines

Deal found 11/7£976

Mon 11/806:30SJC - CWL

3 stops25h 25mMultiple Airlines

Mon 18/813:10CWL - SJC

3 stops34h 36mMultiple Airlines

Deal found 12/7£983

Sun 20/716:59SJC - CWL

2 stops15h 46mDelta

Wed 23/709:50CWL - SJC

2 stops21h 46mDelta

Deal found 13/7£1,639

Best flights from San Francisco Bay Area to Cardiff
Discover carefully curated flight deals from San Francisco Bay Area to Cardiff that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 14 July 2025.

Mon 11/806:25SJC - CWL

2 stops18h 50mKLM

Mon 18/817:15CWL - SJC

2 stops36h 33mKLM

Deal found 12/7£614

Wed 3/907:05SFO - CWL

2 stops18h 10mVirgin Atlantic

Tue 11/1117:25CWL - SFO

1 stop26h 25mVirgin Atlantic

Deal found 11/7£617

Wed 3/917:45SFO - CWL

2 stops18h 00mMultiple Airlines

Tue 11/1116:45CWL - SFO

3 stops35h 25mMultiple Airlines

Deal found 11/7£976

Wed 3/1205:55OAK - CWL

2 stops43h 55mKLM

Sun 7/1210:20CWL - OAK

2 stops38h 11mKLM

Deal found 12/7£685

Wed 3/913:45SFO - CWL

1 stop35h 30mKLM

Tue 11/1117:25CWL - SFO

1 stop26h 25mKLM

Deal found 11/7£710

Mon 11/806:30SJC - CWL

3 stops25h 25mMultiple Airlines

Mon 18/813:10CWL - SJC

3 stops34h 36mMultiple Airlines

Deal found 12/7£983

Last-minute flights from San Francisco Bay Area to Cardiff
Discover last-minute flight deals from San Francisco Bay Area to Cardiff. Data last updated 14 July 2025 and is based on user searches.

Sun 20/700:50SFO - CWL

2 stops24h 25mDelta

Fri 15/809:50CWL - SFO

2 stops21h 53mDelta

Deal found 12/7£740

Sun 20/706:20SJC - CWL

2 stops18h 55mKLM

Mon 21/717:15CWL - SJC

2 stops36h 31mKLM

Deal found 13/7£1,598

Sun 20/716:59SJC - CWL

2 stops15h 46mDelta

Wed 23/709:50CWL - SJC

2 stops21h 46mDelta

Deal found 13/7£1,639

Mon 21/713:45SFO - CWL

1 stop19h 00mVirgin Atlantic

Fri 15/809:50CWL - SFO

2 stops22h 45mVirgin Atlantic

Deal found 12/7£737

Mon 21/713:45SFO - CWL

1 stop35h 30mKLM

Fri 15/817:15CWL - SFO

1 stop26h 30mKLM

Deal found 12/7£800

Mon 21/707:30SFO - CWL

3 stops24h 25mMultiple Airlines

Fri 15/812:25CWL - SFO

3 stops42h 48mMultiple Airlines

Deal found 12/7£1,081

Mon 11/806:25SJC - CWL

2 stops18h 50mKLM

Mon 18/817:15CWL - SJC

2 stops36h 33mKLM

Deal found 12/7£614

Mon 11/806:30SJC - CWL

3 stops25h 25mMultiple Airlines

Mon 18/813:10CWL - SJC

3 stops34h 36mMultiple Airlines

Deal found 12/7£983

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

San JoseCardiff

SJC - CWL

SJCCWL

San Jose

Mon 11/8

06:25-09:15

2 stops18h 50m

Cardiff Wales

Mon 18/8

17:15-21:48

2 stops36h 33m

£614

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Wed 3/9

07:05-09:15

2 stops18h 10m

Cardiff Wales

Tue 11/11

17:25-11:50

1 stop26h 25m

£617

OaklandCardiff

OAK - CWL

OAKCWL

Oakland

Wed 3/12

05:55-09:50

2 stops43h 55m

Cardiff Wales

Sun 7/12

10:20-16:31

2 stops38h 11m

£685

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Wed 3/9

13:45-09:15

1 stop35h 30m

Cardiff Wales

Tue 11/11

17:25-11:50

1 stop26h 25m

£710

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Wed 3/9

17:45-19:45

2 stops18h 00m

Cardiff Wales

Tue 11/11

16:45-20:10

3 stops35h 25m

£976

San JoseCardiff

SJC - CWL

SJCCWL

San Jose

Mon 11/8

06:30-15:55

3 stops25h 25m

Cardiff Wales

Mon 18/8

13:10-15:46

3 stops34h 36m

£983

Flights are sorted by cheapest return flights first.

Deals found on 12/7

Best time to book a flight from San Francisco Bay Area to Cardiff

Have a flexible travel schedule? Discover the best time to fly to Cardiff from San Francisco Bay Area 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 San Francisco Bay Area to Cardiff

No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Cardiff

Check out reviews from past customers who have flown with KLM and Virgin Atlantic from San Francisco Bay Area to Cardiff to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

KLM

7.8

Good

1,372 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

KLM

7.8

Good

1,372 reviews

KLM

7.8

Good

1,372 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Virgin Atlantic

7.4

Good

655 reviews

KLM

7.8

Good

1,372 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Related info for your journey

What airport do you fly into for flights to Cardiff from San Francisco Bay Area?
Cardiff Wales (CWL) is the airport you will fly into if you book a flight from San Francisco Bay Area to Cardiff. It is only a 9.1 mi journey from Cardiff Wales (CWL) to Cardiff’s city center.
What are the most popular routes from San Francisco Bay Area to Cardiff?
While some choose either San Francisco - Cardiff Wales or Oakland - Cardiff Wales, San Jose - Cardiff Wales is the most popular route from San Francisco Bay Area to Cardiff.
Can I find deals for flights from San Francisco Bay Area to Cardiff that include hotel bookings?
Yes. In addition to deals on San Francisco Bay Area to Cardiff flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from San Francisco Bay Area to Cardiff?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Francisco Bay Area to Cardiff.
Can I find deals for business class flights from San Francisco Bay Area to Cardiff?
Yes. Cheapflights offers flight deals from San Francisco Bay Area to Cardiff 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 San Francisco Bay Area to Cardiff?
Currently, July is the cheapest month in which you can book a flight from San Francisco Bay Area to Cardiff (average of £169). Flying from San Francisco Bay Area to Cardiff in December is currently the most expensive (average of £263). 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

Barry

Bridgend

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for San Francisco Bay Area to Cardiff

Other flights to Cardiff

Cardiff to Málaga flights

Cardiff to Dublin flights

Cardiff to Alicante flights

Cardiff to Faro flights

Cardiff to Dublin flights

Cardiff to Málaga flights

Cardiff to Belfast City Airport flights

Cardiff to Alicante flights

Cardiff to Reykjavik Keflavik Intl Airport flights

Cardiff to Palma de Mallorca flights

Cardiff to Faro flights

Cardiff to Ibiza flights

Cardiff to Granadilla flights

Cardiff to Edinburgh flights

Cardiff to Rome Fiumicino Airport flights

Cardiff to Amsterdam flights

Cardiff to Corfu flights

Cardiff to Belfast City Airport flights

Top airline flying from San Francisco Bay Area to Cardiff

Airline	Cheapest	Average	Flexibility	On-time
KLM	Cheapest£604	Average£611	FlexibilityNo cancel fee	On-time75%	Search KLM flights

Fly with Cheapflights

How does Cheapflights help users find flights from San Francisco Bay Area to Cardiff?

Cheapflights helps you search for flights from San Francisco Bay Area to Cardiff via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from San Francisco Bay Area to Cardiff?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from San Francisco Bay Area to Cardiff for you. Better yet — we are completely free to use.

Can Cheapflights find flights from San Francisco Bay Area to Cardiff with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from San Francisco Bay Area to Cardiff flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from San Francisco Bay Area to Cardiff become cheaper?

Yes, Cheapflights offers price alerts on San Francisco Bay Area to Cardiff 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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Cheap flights from San Francisco Bay Area to Cardiff from £614

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/8. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from San Francisco Bay Area to Cardiff

Keep the following information in mind while searching for San Francisco Bay Area to Cardiff flight deals. Data was last updated 14 July 2025.

Round-trip from

Find flight deals from San Francisco Bay Area to Cardiff

Cheapest flights from San Francisco Bay Area to CardiffExplore the most affordable flight options available from San Francisco Bay Area to Cardiff. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 July 2025.

Explore the most affordable flight options available from San Francisco Bay Area to Cardiff. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 July 2025.

Cheapflights Fare Finder

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

Best time to book a flight from San Francisco Bay Area to Cardiff

Have a flexible travel schedule? Discover the best time to fly to Cardiff from San Francisco Bay Area with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from San Francisco Bay Area to Cardiff

Reviews of airlines servicing Cardiff

Check out reviews from past customers who have flown with KLM and Virgin Atlantic from San Francisco Bay Area to Cardiff to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

What airport do you fly into for flights to Cardiff from San Francisco Bay Area?

What are the most popular routes from San Francisco Bay Area to Cardiff?

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

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

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

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

Travelling to a place near Cardiff?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for San Francisco Bay Area to Cardiff

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from San Francisco Bay Area to Cardiff

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 San Francisco Bay Area to Cardiff?

Why should you use Cheapflights to find cheap flight tickets from San Francisco Bay Area to Cardiff?

Can Cheapflights find flights from San Francisco Bay Area to Cardiff with no change fees?

Can Cheapflights notify me if prices for flights from San Francisco Bay Area to Cardiff become cheaper?

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from San Francisco Bay Area to Cardiff
Explore the most affordable flight options available from San Francisco Bay Area to Cardiff. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 July 2025.