SFO - CWL

$1,136 Find Cheap Flights from San Francisco to Cardiff - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$1,075
Typical prices: $1,046-$1,136
KLM
Thu 3/1Mon 3/12
SFO - CWL • 1 stop
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Booking Insights
Flight Deals

Cheap Flights from San Francisco to Cardiff (SFO-CWL)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from San Francisco to Cardiff

Mon, Mar 1 - Fri, Mar 12
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1:50 pm - 5:00 pmSFO  San Francisco-CWL Cardiff Wales
19h 10m1 stop Amsterdam Schiphol
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5:30 pm - 11:45 amCWL  Cardiff Wales-SFO San Francisco
26h 15m1 stop Amsterdam Schiphol
$1,075KLM
Mon, Mar 1 - Fri, Mar 12
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1:50 pm - 5:00 pmSFO  San Francisco-CWL Cardiff Wales
19h 10m1 stop Amsterdam Schiphol
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5:30 pm - 11:45 amCWL  Cardiff Wales-SFO San Francisco
26h 15m1 stop Amsterdam Schiphol
$1,076KLM
Mon, Mar 1 - Fri, Mar 12
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1:50 pm - 5:00 pmSFO  San Francisco-CWL Cardiff Wales
19h 10m1 stop Amsterdam Schiphol
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5:30 pm - 11:45 amCWL  Cardiff Wales-SFO San Francisco
26h 15m1 stop Amsterdam Schiphol
$1,077KLM
Mon, Mar 1 - Fri, Mar 12
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1:50 pm - 5:00 pmSFO  San Francisco-CWL Cardiff Wales
19h 10m1 stop Amsterdam Schiphol
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5:30 pm - 11:45 amCWL  Cardiff Wales-SFO San Francisco
26h 15m1 stop Amsterdam Schiphol
$1,078KLM
Mon, Mar 1 - Fri, Mar 12
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2:15 pm - 5:00 pmSFO  San Francisco-CWL Cardiff Wales
18h 45m2 stops Atlanta Hartsfield-Jackson Amsterdam Schiphol
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5:30 pm - 11:45 amCWL  Cardiff Wales-SFO San Francisco
26h 15m1 stop Amsterdam Schiphol
$1,079KLM
Mon, Mar 1 - Fri, Mar 12
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2:15 pm - 5:00 pmSFO  San Francisco-CWL Cardiff Wales
18h 45m2 stops Atlanta Hartsfield-Jackson Amsterdam Schiphol
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5:30 pm - 11:45 amCWL  Cardiff Wales-SFO San Francisco
26h 15m1 stop Amsterdam Schiphol
$1,080KLM
Mon, Mar 1 - Fri, Mar 12
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7:00 am - 9:50 amSFO  San Francisco-CWL Cardiff Wales
18h 50m2 stops New York John F Kennedy Intl Amsterdam Schiphol
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5:30 pm - 11:45 amCWL  Cardiff Wales-SFO San Francisco
26h 15m1 stop Amsterdam Schiphol
$1,082KLM
Mon, Mar 1 - Fri, Mar 12
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7:00 am - 9:50 amSFO  San Francisco-CWL Cardiff Wales
18h 50m2 stops New York John F Kennedy Intl Amsterdam Schiphol
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5:30 pm - 4:02 pmCWL  Cardiff Wales-SFO San Francisco
30h 32m2 stops Amsterdam Schiphol Seattle/Tacoma Intl
$1,089KLM
Mon, Mar 1 - Fri, Mar 12
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7:00 am - 9:50 amSFO  San Francisco-CWL Cardiff Wales
18h 50m2 stops New York John F Kennedy Intl Amsterdam Schiphol
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5:30 pm - 4:02 pmCWL  Cardiff Wales-SFO San Francisco
30h 32m2 stops Amsterdam Schiphol Seattle/Tacoma Intl
$1,090KLM
Mon, Mar 1 - Fri, Mar 12
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7:00 am - 9:50 amSFO  San Francisco-CWL Cardiff Wales
18h 50m2 stops New York John F Kennedy Intl Amsterdam Schiphol
KLM Logo
5:30 pm - 4:02 pmCWL  Cardiff Wales-SFO San Francisco
30h 32m2 stops Amsterdam Schiphol Seattle/Tacoma Intl
$1,091KLM
Booking Insights

Price, demand and travel trends for San Francisco to Cardiff flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

How much is a round-trip flight from San Francisco to Cardiff?

Round-trip flights from San Francisco to Cardiff typically range from $1,046 to $1,136. The lowest price found in the past 5 days was $1,075, on KLM.

Key details for San Francisco to Cardiff flights

Cheapest flight

$1,075
Round-trip flight from San Francisco to Cardiff

When to book flights from San Francisco to Cardiff

Are your dates flexible? Find out the best times to travel from San Francisco to Cardiff based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your San Francisco to Cardiff flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What cabin classes can I book on flights from San Francisco to Cardiff?

    Only Economy Class is available on flights from San Francisco to Cardiff.

  • Do I need a passport to fly from San Francisco to Cardiff?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • Have flight prices from San Francisco to Cardiff changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $1,075 to $2,676. That means the highest observed fare was about 2x higher than the lowest one.

  • What car rental options are available at Cardiff Wales Airport (CWL)?

    Cardiff Wales Airport (CWL) hosts 5 major car rental companies, with daily rates averaging $65 for economy cars. Top options include:

    • Alamo
    • Budget
    • Avis
    • Enterprise Rent-A-Car
    • National

  • Which airports can I use when flying from San Francisco to Cardiff?

    Flights from San Francisco to Cardiff usually depart from San Francisco (SFO) and arrive at Cardiff Wales (CWL).

  • Which airports do connecting flights from San Francisco to Cardiff pass through?

    Most connecting flights from San Francisco to Cardiff pass through Amsterdam Schiphol (AMS), which handles 100% of one-stop traffic on this route.

  • Can I save money by using flexible dates for flights from San Francisco to Cardiff?

    Yes. Flexible dates can save you up to 5% on flights from San Francisco to Cardiff. Wednesday is the cheapest departure day at $1,046 round-trip on average, while Thursday is the most expensive at $1,096, a difference of $50.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What is the time difference between San Francisco and Cardiff?

    Cardiff is 8 hours ahead of San Francisco (British Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

Your guide to booking San Francisco to Cardiff flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Wednesday departure and avoid flying on Thursday. On this route, Wednesday flights average $1,046, about $50 less than Thursday fares (5% savings) based on the last 12 months.

More options for your flight from San Francisco to Cardiff

Complete your trip to Cardiff with a hotel stay or car rental