Find flights
Deals
Insights
When to book
FAQs & Tips
Airlines

SFO - CWL

$442 Find cheap flights from San Francisco to Cardiff

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Francisco to Cardiff departing on 8/15. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Thu 7/11
Thu 7/18

Search hundreds of travel sites at once for deals on flights to Cardiff

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Francisco to Cardiff, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Francisco to Cardiff, as well as popular online travel agencies
In the last 7 days travelers have searched 44,212,782 times on KAYAK, and here is why:

Save 21% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

Cheap flight deals from San Francisco to Cardiff (SFO-CWL)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Francisco to Cardiff that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
1:50 pm - 9:40 pmSFO-CWL
23h 50m1 stop
10:15 am - 11:50 amCWL-SFO
33h 35m1 stop
$846Air France
Find Deal
Wed, Nov 13 - Mon, Nov 25
6:00 am - 9:40 pmSFO-CWL
31h 40m2 stops
10:15 am - 11:50 amCWL-SFO
33h 35m1 stop
$851Air France
Find Deal
Wed, Nov 13 - Mon, Nov 25
12:40 am - 9:45 amSFO-CWL
25h 05m2 stops
6:00 am - 11:50 amCWL-SFO
13h 50m1 stop
$855Delta
Find Deal
Tue, Nov 12 - Mon, Nov 25
6:15 am - 9:40 pmSFO-CWL
31h 25m2 stops
10:15 am - 3:54 pmCWL-SFO
37h 39m2 stops
$861Air France
Find Deal
Wed, Nov 13 - Mon, Nov 25
12:40 am - 9:45 amSFO-CWL
25h 05m2 stops
6:00 am - 4:21 pmCWL-SFO
18h 21m2 stops
$865Delta
Find Deal
Tue, Nov 12 - Mon, Nov 25

Flights from San Francisco to Cardiff - Travel Insights & Trends

Get data-powered insights and trends into flights from San Francisco to Cardiff to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from San Francisco to Cardiff?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
The best deals for a one-way ticket found by KAYAK users over the last 3 days were on ITA Airways ($753) and KLM ($884). The cheapest round-trip tickets were found on Air France ($846) and Delta ($855).

Good to know

Low season

March

High season

February

Cheapest flight

$442
Best time to beat the crowds with an average 33% drop in price.
Most popular time to fly and prices are also 25% lower on average.
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
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from San Francisco to Cardiff

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

    In the last 3 days, the lowest price for a flight from San Francisco to Cardiff was $442 for a one-way ticket and $846 for a round-trip.

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

    Yes, you'll most likely have to show a valid passport before boarding the plane in San Francisco and on arrival in Cardiff.

  • Which aircraft models fly most regularly from San Francisco to Cardiff?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from San Francisco to Cardiff?

    SkyTeam is the only airline alliance operating flights between San Francisco and Cardiff.

  • Which is the best airline for flights from San Francisco to Cardiff, Delta or KLM?

    The two airlines most popular with KAYAK users for flights from San Francisco to Cardiff are Delta and KLM. With an average price for the route of $867 and an overall rating of 8.0, Delta is the most popular choice. KLM is also a great choice for the route, with an average price of $825 and an overall rating of 7.8.

  • How does KAYAK find such low prices on flights from San Francisco to Cardiff?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from San Francisco to Cardiff.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from San Francisco to Cardiff?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Cardiff from San Francisco is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from San Francisco to Cardiff?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Cardiff with an airline and back to San Francisco with another airline. Booking your flights between San Francisco and CWL can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from San Francisco to Cardiff?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Cardiff from San Francisco up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top airlines flying from San Francisco to Cardiff

 
See real verified KAYAK customer reviews for airlines flying from San Francisco to Cardiff. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from San Francisco to Cardiff? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
DeltaOverall score based on 10277 reviews
7.4Food
8.6Crew
8.0Entertainment
8.2Boarding
7.9Comfort
Airline reviews

There was plenty of overhead room but half of the passengers were told they had to check their carryon bags. My partner and I checked in as early as possible and our seats were split across the aisle.

4.0 OkayBrooke, Jun 2024SFO - MSP
Read more about Delta reviews

There was plenty of overhead room but half of the passengers were told they had to check their carryon bags. My partner and I checked in as early as possible and our seats were split across the aisle.

Flew first class so everything was great. But maybe because the flights were red eye, no meals were served, just chips. I flew Alaska Air 1st class at 9PM (2 hour flight) and they served beef short rib sliders!

There was a loud squeaky sound the whole time we were flying.

I didn’t not like that I could not select my seat and ended up with the worse seat.

The landing was bad and the hostess came two times and i was sleeping but when she served the person that nexts to me I woke up and she didn’t even asked me if I need any drink or snacks two times!!!!

Plane was late because of a mechanical malfunction and the food listed as available was not. Flight attendants seem over worked and under paid. They just done seem happy. And that can be seen in their faces.

Waited 3 hours on a plane to de-ice due to manpower issues. Waited another hour and a half once we landed because of a gate issue. Missed my connections. Created. A total of 13 hours of delay.

Great, on time departure, friendly and accommodating crew, great leg room, Smith flight

Plane was turned around due to fog half way into the flight, Delta did not properly direct passengers to stay on same flight and instead failed to properly rebook on Alaska

Honestly, I didn’t expect that I will experience this long time wait during the check in. There was only one person who was taking care of the passengers for the economy class and it took us to wait about one hour to do our check i. As a result we barely get to the airplane as the gate was at the end of the airport. That is totally not professional where one crue is working at the registration desk with economy and 3-4 crues are helping for the business class.

The flight was again delayed for more then 2 hours with some lousy explanation regarding the reason of the delay. Although the flight was delayed for more than 2 hours, no refreshments were offered (according to EU regulations). Last 4 flights on KLM - always at least 2 hrs late. So be prepared that you cannot plan anything with KLM.

Seats are fair enough for medium tall people. Good food all the trip. Fight attendances are warm

I thought KLM was the best airline but the Lima - Amsterdam was 1 hours late, the Brussels - Amsterdam was 2.30 hours late and the Amsterdam - Lima was 30 minutes late

no issues at all... Kudos to the food. This time was really really good

The food was ok. The crew seemed like they were cranky. I had one guy get mad at me for passing in between the storage area to get to the other toilet. I can understand if it's not allowed but reprimanding me like I'm a student saying "This is the last time!" was not appropriate. During my meal time, there was a French family around me. No problems there but when we usually have meals, they are supposed to put their chair in the upright position. These people did not do it and the steward did not tell them to raise their seat in the upright position. However, I was told to do so! So, me and another person next to me had to eat with the monitor almost touching our faces. Furthermore, a lady in front of me was putting her feet up and preventing another elder passenger from putting her seat back. To make it worse, she was continuously hitting her back into her seat, shaking my monitor while I was watching a movie. A crew member did speak to her about it but then she accused me of pushing her seat forward! The crew member gave me a death stare and told me to stop pushing the seat forward. I did not even touch her seat at all, if I did, she would know it. Her boyfriend also stood up and tried to push her seat even further past the maximum decline to no avail. None of these people were reprimanded but the steward, some bald guy, was extremely friendly with them and did not even try to instruct them to do anything until it was time to land. I resisted the urge to really argue with them because I would have obviously been seen as the aggressor (I have no idea why). I hardly said anything on this flight except "more wine please" and "sorry" if I bumped into someone accidentally. Overall, it was an annoying flight and I had to resist the urge to yell at the steward and the people he was overly friendly with. The happiest moment of this flight was leaving it.

Overall a good experience. We were disappointed when we had to check our carry on due to the plane being full. KLM hadn’t notified us and we had valuable items in the carry on but they still made us check it. Some of the food was great and some was mediocre. Crew is really kind and funny.

Mostly fine. Minor delays departing and arriving. Quite a cramped plane, not so much as regards legroom but very narrow seats. Quiet nice food. Non-working USB charger. Flight attendants were helpful but not particularly proactive — one had to work to get their attention (but all was fine once they notice you), very Dutch style:)

I travel frequently. The flight was late again... KLM should really try and be on time

The plane was clean and the staff was friendly. Food and drinks as expected on international flights. The entertainment system was old style, with a pullout controller, and selections not as extensive as on other flights.

One of their staff was so rude with discriminative. Such a reputed airline shouldn't hire such kind of arrogant attendants.

Book cheap flights from San Francisco to Cardiff

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from San Francisco to Cardiff found on KAYAK in the last 72 hours.
8/15Thu
3 stops
22h 49mSFO-CWL
$442
8/14Wed
3 stops
36h 32mSFO-CWL
$480
8/15Thu
2 stops
21h 25mSFO-CWL
$503
8/15Thu
1 stop
19h 45mSFO-CWL
$543
8/15Thu
2 stopsITA Airways
41h 30mSFO-CWL
$753
8/15Thu
1 stopKLM
18h 50mSFO-CWL
$884

Search by stops

Search by airline

Search by price

San Francisco - Cardiff Flights

Departure:

San Francisco (SFO)United States

Destination:

Cardiff (CWL)United Kingdom

Return flight deals:

Cardiff - San Francisco

Cabin classes:

Browse destinations: