Find cheap flights from San Francisco to Cardiff

SFO - CWL

Find cheap flights from San Francisco to Cardiff

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Round-trip
Economy
San Francisco (SFO)
Cardiff Cardiff-Wales Arpt
Fri 4/9
Fri 4/16
Any month
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Good to know

Low season

AprilBest time to beat the crowds with an average 46% drop in price.

High season

JuneMost popular time to fly with an average 36% increase in price.

Average price round-trip

$863(avg. price over the last 2 weeks)

Good deal round-trip

$471or less

Book cheap flights from San Francisco to Cardiff

When to book flights from San Francisco to Cardiff

Estimated round-trip price
Average price per month

Top tips for finding a cheap flight

  • Looking for a cheap flight? 25% of our users found flights on this route for $471 or less round-trip.
  • High season is considered to be May, June and July. The cheapest month to fly is April.

FAQs for booking flights from San Francisco to Cardiff

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Top airlines flying San Francisco to Cardiff Cardiff-Wales Arpt

Scores according to KAYAK customer reviews

7.9
Delta
Overall score based on 29,138 reviews
8.1
Boarding
7.8
Comfort
8.5
Crew
7.8
Entertainment
7.5
Food
Airline reviews

Pros: "Cleanliness. Safety. Friendly."

Pros: "Yes"
Cons: "Delightful experience except at SFO checkin."

Pros: "Covid safety protocols and people following was excellent."
Cons: "Serve alcohol :)"

Pros: "Crew great....moved passengers around near us for Covid related separation."
Cons: "Cramped.....too many seats in too small of a plane....I'm 6ft / 190 lbs"

Pros: "Good organization, good hygiene, polite crew."

Pros: "On time"

Cons: "Aircraft was too warm. Needed more air!"

Pros: "compared with other airlines they were just OK"
Cons: "everything"

Pros: "The crews were very fast and efficient. The Dinner was good but the breakfast was very basic."
Cons: "The seat was so crammy and disgustingly uncomfortable"

Cons: "Connection at Schiphol often tricky;"

Cons: "My monitor isn’t really working after rebooted. And the audio hole wasn’t tight enough"

Pros: "On time, smooth take off and landing."

Cons: "Better food and more water."

Pros: "My seat didn't recline"

Pros: "Quick boarding process"
Cons: "Wifi stopped working halfway"

Cons: "Great"

Cons: "Boarding was like a cattle call....my headrest was broken so couldn’t sleep upright but face down....seemed like a plane that large would have more bathrooms"

Cons: "The sits are uncomfortable"

Pros: "Free food. Extra room."
Cons: "Waiting on runway"

Pros: "Delta Comfort om commuter jet"

Pros: "Flew us safely home."
Cons: "We waiting on the runway for over a long period."

Pros: "Cheese plate"
Cons: "TheyCharge me $25 for my bag and I’m at Delta sky Miles older plus the American Express platinum card holder it’s supposed to not be charged"

Cons: "3 hours delay"

Pros: "Had the whole Comfort section to myself!"

Cons: "Didnt fly from San Francisco to Atlanta"

Pros: "Quiet, quick, no issues"
Cons: "Slow boarding. Slowest boarding everr. Maybe not enough overhead space, doesn't make sense how there is not enough overhead space while calling zone 2 passengers."

Cons: "Flying into blizzards suck, don’t do it"

Cons: "There is no place to specifically order vegetarian options in booking. Luckily virgin carries extra"

Pros: "Excellent service and upgraded snacks in economy"
Cons: "Nothing"

Pros: "Too many people, no room for carry-ons, departed almost an hour late."
Cons: "Too many people, no room for carry-ons, departed almost an hour late."

Cons: "waiting on the tarmac for 40 minutes"

Pros: "No hassle, no drama, very smooth."
Cons: "The blueberries were rather bland."

Pros: "All I need to say."

Pros: "the meal was OK and they served ice cream midway between SFO and JFK."
Cons: "Late departure. Long delay getting to the get because of congestion at Terminal 4."

Pros: "it was great experience"

Pros: "Ground team was amazing--efficient, pleasant, rapid turnaround"
Cons: "Incoming plane was 1.5h late and there was no meaningful explanation (saying that the plane was late coming in bc it was late getting to its prior stop isn't really an explanation)"

Pros: "Comfort and boarding"
Cons: "Delay and food"

Pros: "It was my husband's birthday and the stewardess (red dress, long brown hair) went out of her way to make him feel special by bringing champagne, cookies and even chocolate once we were getting off the plane. I was very touched."
Cons: "The guy next to me was kind of smelly but was very nice."

Pros: "Very smooth"

Cons: "Asked for hot tea but what I got was barely tepid."

Pros: "Excellent trip. Provided ample food snacks and drinks."

Cons: "The attendents only served one round of beverages in Comfort Plus."

Pros: "Individual screen and USB port"
Cons: "No issues that could be controlled I.e. Person in seat in front for mine leaning way ......"

Pros: "Painless"
Cons: "Price of food"

Cons: "Boarding took too long - full plane and double seat booking changed 10 minutes early estimate to 20 minutes late"

Pros: "All restroom floors were wet. I have seen this in others 767's too. Is this a 767 phenomenon"

Pros: "On time"

Cons: "half-broken screen, couldn't access anything on the left side"

Pros: "Plane was a newer one, clean, and the stewards were nice."
Cons: "New seating was terrible. The seats are so jammed together that my knees were pushed up into the seat in front. How can anyone be comfortable with this kind of seating arrangements?"

Pros: "The plane condition."
Cons: "The flight attendants could have served some drinks in between the meals. They actually refused to serve something additionally when asked."

Cons: "No internet available (2020). For the my previous flight, a month ago, was the same problem."

Pros: "The crew was very kind"

Cons: "I paid for the preferred seat .and i found that people beside me didnt pay anything when i asked them ,"

Pros: "Great plane and staff"
Cons: "Delayed"

Cons: "The flight was a bit delayed, but the airline handled it incredibly well. I was put up in a great hotel with good free food and caught another flight the next morning."

Cons: "Head support for 6 feet plus people on seats would be good"

Pros: "Seat was uncomfortable. There was nothing to like. In past I have traveled by KLM but this time it was worst."
Cons: "No proper food service. Even to the passenger of Amsterdam no dinner was served. No inflight service. It looks like domestic flight. I will think twice to travel by KLM. The check-in staff at counter was absolutely arrogant. Staff ar boarding gate was nice."

Cons: "Flight 2 hours delayed, started boarding but had to wait on line 10 more minutes on boarding ramp for plane door to be opened, upon landing in Dublin had to wait on tarmac for anther 15 minutes for stairs to arrive and be connected to airplane. Then had to wait another hour for checked luggage...."

Cons: "There was no wifi on flight"

Cons: "They left my bag off the plane. Ridiculous."

Pros: "The crew"
Cons: "Seat comfort"

Pros: "Cabin facilities"
Cons: "They didn’t bring one of my bags"

Pros: "The crew was great but the seat wasn't as comfortable and didn't have much leg room."

Pros: "The earphones for out two seats only worked intermittently, but the Purser, Lee-Ann handled it professionally and pleasantly. That was the only disappointment in an otherwise pleasant flight"
Cons: "The earphones could have worked!"

Pros: "Amazing crew"

Cons: "The flight was cancelled and had to be rerouted on United Airlines."

Pros: "The crew!!"

Pros: "They considered my reguest of vegiterian food."
Cons: "I have no complaints."

Pros: "The flight AMS to MEX was smooth, very helpful personnel on board, we enjoyed a bit more space and the seat seemed a bit more comfortable."
Cons: "Besides the seat relative comfort, it did not recline much at all, i wondered what the extra money (at least $5 or $600) got us. The food, wine/ beer service was same as regular economy, the boarding took place at same time as economy, no drink before take-off if only sparkling water. And the plane was old generation 747 and the entertainment was same vintage: screen was not very bright and the selection of films was poor. No plug to charge electronics. We were disappointed with KLM when comparing with other airline companies offerings when you book in Premium Economy."

Pros: "Last year I flew Lufthansa which was my worst experience flying ever. I thought the new standard was so low I would never fly to Europe again. I had heard KLM was good but I felt this was as good as could be expected actually much better. The food was even good."
Cons: "I would have to dream something up."

Pros: "Friendly hostesses"
Cons: "Flight was delayed 3 hours"

Pros: "Efficient boarding system, clearly signposted. Professional staff"

Pros: "The service"
Cons: "The seats"

Cons: "Our lougage did not arrive"

Pros: "Crew was awesome"
Cons: "."

Pros: "Restrooms clean, decent food and drink, nice cabin crew."
Cons: "No complaints"

Pros: "The boarding was easy and you didn't have to wait inline for that long"
Cons: "KLM needs to upgrade the entertainment. It was very hard to see the images on the screen. The planes that KLM uses are old and they sure need to be upgraded."

Pros: "Need better quality tvs for such a long flight and better movies There were only 4 Bollywood movies and not the latest ones either"

Cons: "The cabin crew was racist! She asked me to move from a seat because she wanted another guy ( obviously from her country ) to take it! Rude and racist."

Pros: "Nothing really"
Cons: "Flew KLM 27 years ago and the airlines seem to be stuck in the same era. Food is poor quality... Have you recently checked the Gulf carriers."

Pros: "Good Experience"
Cons: "Nothing much"

Cons: "Bag was lost"

Pros: "Just great crew."
Cons: "Not comfortable at all and will not book KLM again."

Pros: "The flight was great."

Pros: "had problems checking in , in that I was charged for a suitcase! I have since checked my paper work and found thad that I had paid for a case! I will follow this up when I return to the UK"

Cons: "Service from airline host Poorly maintained plane Bad food Old entertainment"

Pros: "Crew was very helpful.food"
Cons: "Food was not upto the mark."

Pros: "From pre-boarding, to boarding, to the food, and the attentiveness, everything was top notch! The cleanliness of the plane was only topped by the friendliness of the crew."
Cons: "The flight was marked at almost 11hrs but ended up being only 9...not a negative other than it meant not spending as much time on board!"

Cons: "old plane, tight and uncomfortable"

Pros: "Of the multiple international airlines I recently flew with, I would have to say KLM was by far the best. Relaxing atmosphere, comfortable seating, great in-flight entertainment, although I have the go-go in-flight data/entertainment plan with t-mobile (highly recommended), the flight included a decent selection of movies, television programs, etc. The food far exceeded typical "airline quality," even for an international flight - and included a fabulous little snack box with locally sourced gourmet and specialty items such as chocolate from Belgium, fine cheeses from France, and crackers from England. Drinks = gratis, and crew was exceptionally attentive and went out of their way to make flight as pleasant as possible."
Cons: "Nothing."

Pros: "Great crew service. Among the best ever."

Pros: "Arriving more or less on time"
Cons: "Crew is awful. Disrespectful desinterested in customers find themselves very important. No service mentality whatsoever. No respectful airline would hire such arrogant self centered personalities in a service role"

Pros: "I fly delta this was run by KLM they weight all bags delta does not they don't take TSA preach Check. Delta does It was a free for all with check in and getting into plane"
Cons: "See above"

Pros: "Boarding was very efficient."
Cons: "Limited movie selection. Crew seemed stressed. Gave me wrong meal and then swaped for the right one. I asked for Diet Coke and was given white wine. Food quality was not good."

Pros: "Nothing"
Cons: "Airlines had no record of our pets flying with. Missed our flight even though we were there over 3 hours prior. Ruined the last day of vacation. Now we are waiting for the promised help in Amsterdam. No one is here. No one knows anything. Feel like crying"

Pros: "Excellent service"
Cons: "Having to pay extra to pick a seat prior to check-in. I didn't, and got a decent seat anyway."

Pros: "10 hour flight - I was well looked after, regular drinks, the food and snacks were good enough and tasty. The in flight entertainment was good - latest movies and worked a great variety of tv, books and movies. The airplane was modern and comfortable"

Cons: "The flight was very delayed. We sat on the floor because there was not enough seating. We eventually had to squeeze into buses and drive around the tarmac to find a plane. We lost 5 bags in the process but eventually got them 2 days after arrival. the bags did not show up when we originally were told they would."

Cons: "Taking off late caused me stress because I had transferring flight within less than two hours in transit originally. So we arrived later about 50 minutes so I had to manage my situation and find my next gate and be on time. And an other thing that I disliked was that I was allowed to have only one baggage which was very unusual for international flight between two countenances. And the crew was not polite enough so she made fun of my Cary-on. In short, I expected more from KLM which is famous for them being "Royal" but not acting as one of them."

Read more about Delta
COVID-19 information

Safety measures for airlines flying from San Francisco to Cardiff

Airlines flying from San Francisco to Cardiff have enacted additional safety measures and adjusted policies to better accommodate travelers. Policies vary by airline.

Heightened sanitation

Daily cleaning, installation of cabin HEPA filters on flights from San Francisco to Cardiff

Mandatory masks

Masks required on board, masks provided on flights from San Francisco to Cardiff

Social distancing seating

Middle seats unavailable to book on flights from San Francisco to Cardiff

Pre-flight testing

Testing for antibodies, testing for symptoms for flights from San Francisco to Cardiff

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