Title: £1,172 Cheap KLM flights from Cardiff to San Francisco (CWL→SFO) - Expedia.co.uk ![Sunset view of the Golden Gate Bridge and fog from Battery Spencer, Golden Gate National Recreation Area, in San Francisco, California.](https://images.trvl-media.com/place/508803/0ac688ba-e7fa-4fb1-9f85-037d98869bf8.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/508803/0ac688ba-e7fa-4fb1-9f85-037d98869bf8.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # £1,172 Cheap KLM flights from Cardiff to San Francisco (CWL→SFO) [View £1,172 flight on Tue, 24 Mar 2026](https://expedia.co.uk/Flights-Search?trip=oneway&leg1=from:CWL,to:SFO,departure:24/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1171.85&airProductToken=AQpnCjIIy5gBEgQxMDk0GMJdIICTASi1v4gDMIXAiAM4WUAAWAFqBUxJR0hUcghNWTQwQkJMQQoxCMuYARIDNjA1GICTASCycSjSxogDMObLiAM4TUABWAFqBUxJR0hUcghNWTQwQkJMQRIKCAEQARgBKgJLTBgBIgQIARABKAIoAygEMA0) - [Return](?flightType=roundtrip) - [One-way](?flightType=oneway) - [Multi-city](?flightType=multicity) ### Travellers Adults ChildrenAges 2 to 17 InfantsYounger than 2 EconomyPremium economyBusiness classFirst class Leaving from Going to Departing Returning Add a place to stay Add a car Direct flights only - ![notification illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__notification.svg) ### Be in the know Get alerts if flight prices drop or rise\* - ![deals illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__deals.svg) ### Book smarter Save up to 25% on select hotels after you book a flight\* - ![trophy illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__trophy.svg) ### Earn twice Earn your airline miles on top of our rewards [Sign in](https://www.expedia.co.uk/login) ## KLM flights from Cardiff to San Francisco (CWL→SFO) Prices were available within the past 7 days and start at £1,172 for one-way flights and £525 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Return ![KLM](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/KL.gif) Sun, 1 Mar - Sun, 8 Mar CWL Cardiff SFO San Francisco £525 Return found 4 hours ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:CWL,to:SFO,departure:01/03/2026TANYT&leg2=from:SFO,to:CWL,departure:08/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:524.05&airProductToken=AQpnCjIIy5gBEgQxMDk0GMJdIICTASjavIYDMKq9hgM4TEAAWAFqBUxJR0hUcghWWTJESTdMVwoxCMuYARIDNjA1GICTASCycSjyw4YDMIbJhgM4VkABWAFqBUxJR0hUcghWWTJESTdMVwpnCjEIy5gBEgM2MDYYsnEggJMBKMONhwMwqpKHAzhWQABYAWoFTElHSFRyCFZZM0RJN0xXCjIIy5gBEgQxMDkzGICTASDCXSjilYcDMK2WhwM4TEABWAFqBUxJR0hUcghWWTNESTdMVxIKCAIQARgCKgJLTBgBIgQIARABKAIoAygEMA0) ![KLM](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/KL.gif) Sat, 24 Jan - Wed, 28 Jan CWL Cardiff SFO San Francisco £528 Return found 2 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:CWL,to:SFO,departure:24/01/2026TANYT&leg2=from:SFO,to:CWL,departure:28/01/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:527.75&airProductToken=AQqmAQoyCMuYARIEMTA4OBjCXSCAkwEorKSDAzD8pIMDOExAAFgBagVMSUdIVHIIVlkzREk3TFcKMQjLmAESAzY0MRiAkwEgqVEorqWDAzCdqYMDOFZAAVgBagVMSUdIVHIIVlkzREk3TFcKPQjLmAESBDcyNzMYqVEgsnEo-aqDAzCIroMDOFZAAVgBagVMSUdIVHIIVlkzREk3TFd6CgjEmAESBDcyNzMKZwoxCMuYARIDNjA2GLJxIICTASjj1oMDMMrbgwM4VkAAWAFqBUxJR0hUcghWWTJESTdMVwoyCMuYARIEMTA5MxiAkwEgwl0ojN-DAzDX34MDOExAAVgBagVMSUdIVHIIVlkyREk3TFcSCggCEAEYAioCS0wYASIECAEQASgCKAMoBDAN) ![KLM](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/KL.gif) Sat, 31 Jan - Sat, 7 Feb CWL Cardiff SFO San Francisco £529 Return found 5 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:CWL,to:SFO,departure:31/01/2026TANYT&leg2=from:SFO,to:CWL,departure:07/02/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:528.65&airProductToken=AQqmAQoyCMuYARIEMTA4OBjCXSCAkwEojPODAzDc84MDOExAAFgBagVMSUdIVHIIVlkzREk3TFcKMQjLmAESAzY0MRiAkwEgqVEojvSDAzD994MDOFZAAVgBagVMSUdIVHIIVlkzREk3TFcKPQjLmAESBDcyNzMYqVEgsnEo2fmDAzDo_IMDOFZAAVgBagVMSUdIVHIIVlkzREk3TFd6CgjEmAESBDcyNzMKswEKPQjLmAESBDY0NTIYsnEgqVEohMSEAzDNxoQDOFZAAFgBagVMSUdIVHIIVlkzREk3TFd6CgjEmAESBDY0NTIKPgjLmAESBDYwNzAYqVEggJMBKJnHhAMwx8qEAzhWQAFYAWoFTElHSFRyCFZZM0RJN0xXegoIxJgBEgQ2MDcwCjIIy5gBEgQxMDg3GICTASDCXSiZzIQDMOnMhAM4TEABWAFqBUxJR0hUcghWWTNESTdMVxIKCAIQARgCKgJLTBgBIgQIARABKAIoAygEMA0) ![KLM](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/KL.gif) Sun, 1 Mar - Sun, 8 Mar CWL Cardiff SFO San Francisco £531 Return found 4 hours ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:CWL,to:SFO,departure:01/03/2026TANYT&leg2=from:SFO,to:CWL,departure:08/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:530.05&airProductToken=AQpnCjIIy5gBEgQxMDg4GMJdIICTASisuYYDMPy5hgM4TEAAWAFqBUxJR0hUcghWWTJESTdMVwoxCMuYARIDNjA1GICTASCycSjyw4YDMIbJhgM4VkABWAFqBUxJR0hUcghWWTJESTdMVwqmAQo9CMuYARIENzU4NRiycSCpUSijkYcDMO2ThwM4UkAAWAFqBUxJR0hUcghSWTJESTdMV3oKCMSYARIENzU4NQoxCMuYARIDNjQyGKlRIICTASiVmYcDML6chwM4UkABWAFqBUxJR0hUcghSWTJESTdMVwoyCMuYARIEMTA4NxiAkwEgwl0o452HAzCunocDOExAAVgBagVMSUdIVHIIUlkyREk3TFcSCggCEAEYAioCS0wYASIECAEQASgCKAMoBDAN) ![KLM](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/KL.gif) Sun, 1 Mar - Sun, 8 Mar CWL Cardiff SFO San Francisco £535 Return found 4 hours ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:CWL,to:SFO,departure:01/03/2026TANYT&leg2=from:SFO,to:CWL,departure:08/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:534.25&airProductToken=AQq1AQoyCMuYARIEMTA4OBjCXSCAkwEorLmGAzD8uYYDOExAAFgBagVMSUdIVHIIVlkzREk3TFcKPwjLmAESBDYxMjAYgJMBIOO0ASiDu4YDMJq_hgM4VkABWAFqBUxJR0hUcghWWTNESTdMV3oKCMSYARIENjEyMAo-CMuYARIENzM2MBjjtAEgsnEo18CGAzCdw4YDOFZAAVgBagVMSUdIVHIIVlkzREk3TFd6CgjEmAESBDczNjAKpgEKPQjLmAESBDc1ODUYsnEgqVEoo5GHAzDtk4cDOFJAAFgBagVMSUdIVHIIUlkyREk3TFd6CgjEmAESBDc1ODUKMQjLmAESAzY0MhipUSCAkwEolZmHAzC-nIcDOFJAAVgBagVMSUdIVHIIUlkyREk3TFcKMgjLmAESBDEwODcYgJMBIMJdKOOdhwMwrp6HAzhMQAFYAWoFTElHSFRyCFJZMkRJN0xXEgoIAhABGAIqAktMGAEiBAgBEAEoAigDKAQwDQ) ![KLM](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/KL.gif) Sun, 1 Mar - Sun, 8 Mar CWL Cardiff SFO San Francisco £538 Return found 4 hours ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:CWL,to:SFO,departure:01/03/2026TANYT&leg2=from:SFO,to:CWL,departure:08/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:537.05&airProductToken=AQpnCjIIy5gBEgQxMDg4GMJdIICTASisuYYDMPy5hgM4TEAAWAFqBUxJR0hUcghWWTJESTdMVwoxCMuYARIDNjA1GICTASCycSjyw4YDMIbJhgM4VkABWAFqBUxJR0hUcghWWTJESTdMVwqmAQo9CMuYARIENzU1OBiycSCpUSjviocDML-NhwM4TkAAWAFqBUxJR0hUcghOWTNESTdMV3oKCMSYARIENzU1OAoxCMuYARIDNjQyGKlRIICTASj1jYcDMJ6RhwM4TkABWAFqBUxJR0hUcghOWTNESTdMVwoyCMuYARIEMTA4NxiAkwEgwl0ow5KHAzCOk4cDOExAAVgBagVMSUdIVHIITlkzREk3TFcSCggCEAEYAioCS0wYASIECAEQASgCKAMoBDAN) ![KLM](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/KL.gif) Mon, 20 Apr - Sat, 25 Apr CWL Cardiff SFO San Francisco £539 Return found 2 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:CWL,to:SFO,departure:20/04/2026TANYT&leg2=from:SFO,to:CWL,departure:25/04/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:538.35&airProductToken=AQqoAQoyCMuYARIEMTA4OBjCXSCAkwEojeuKAzDY64oDOExAAFgBagVMSUdIVHIIVlkyREk3TFcKMgjLmAESAzYxNxiAkwEgwZMBKPXtigMwxvGKAzhWQAFYAWoFTElHSFRyCFZZMkRJN0xXCj4Iy5gBEgQ3Nzk1GMGTASCycSjN8ooDMOP1igM4VkABWAFqBUxJR0hUcghWWTJESTdMV3oKCMSYARIENzc5NQpnCjEIy5gBEgM2MDYYsnEggJMBKP2oiwMw6a2LAzhWQABYAWoFTElHSFRyCFZZM0RJN0xXCjIIy5gBEgQxMDg3GICTASDCXSiEuYsDMM-5iwM4TEABWAFqBUxJR0hUcghWWTNESTdMVxIKCAIQARgCKgJLTBgBIgQIARABKAIoAygEMA0) ## Alternative airports near San Francisco Prices were available within the past 7 days. Prices and availability are subject to change. [](https://www.expedia.co.uk/Flights-Search?leg1=from:CWL,to:SFO,departure:24/01/2026TANYT&leg2=from:SFO,to:CWL,departure:28/01/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) SFO San Francisco Intl. CheapestClosest 19 min [Flights from £528 ](https://www.expedia.co.uk/Flights-Search?leg1=from:CWL,to:SFO,departure:24/01/2026TANYT&leg2=from:SFO,to:CWL,departure:28/01/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) ## Travel information | Origin airport | Cardiff Intl. | | ------------------- | -------------------------------- | | Destination airport | San Francisco Intl. | | Airlines serving | Air France, KLM, Virgin Atlantic | | Popular airline | Air France | | Distance | 8433 km | \*Available to Expedia members.