Cheap Flights from Cardiff to San Francisco

Compare Cardiff to San Francisco International flight deals

Find the cheapest month or even day of the year to fly to San Francisco International

Book the best San Francisco International fare with no extra fees

Flight deals from Cardiff to San Francisco International

Looking for a cheap last-minute deal or the best return flight from Cardiff to San Francisco International? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Cardiff to San Francisco International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Cardiff to San Francisco International flights are currently cheapest in February.

Cardiff to San Francisco International: Alternative routes

Compare routes from Cardiff to San Francisco below. You may find an airport to fly into that's cheaper, faster, or easier than San Francisco International.

Cardiff to San Francisco: Flight information

The things to know before you go.
Cheapest flight found$993
Cheapest month to flyFebruary

Finding cheap flights from Cardiff to San Francisco International: Frequently asked questions

The best price we found for a return flight from Cardiff to San Francisco International is $993. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Cardiff to San Francisco International. But we found flights with one or more stops from $986.
As of October 2024, there are no flights flying from Cardiff to San Francisco International.
The cheapest month to fly from Cardiff to San Francisco International is usually October 2024.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Cardiff Airport to San Francisco International Airport on Tuesday, 4 February 2025.
No airlines currently offer direct flights between Cardiff Airport and San Francisco International Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to San Francisco International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to San Francisco is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Delta offers the cheapest flight tickets to San Francisco International.

Travelling from Cardiff Airport (CWL) to San Francisco International Airport (SFO): what you need to know

  • Popular months like June or high seasons such as summer and spring break will mean longer lines at check-in and security. Travelling then? Play it safe and get to the airport even earlier. Arriving two hours before a domestic flight and up four hours ahead of international flights is wise.

  • If you'd like to visit a new city along the way, consider a flight with a stopover. To see all your options for flights from Cardiff Airport to San Francisco International Airport, deselect 'Direct flights only.' Dublin Airport is a well-known stop between CWL and SFO.

  • Don't forget, you may need a visa to enter United States. Visa requirements vary and travel documentation requirements frequently change. Before reserving your cheap ticket from CWL to SFO, be sure to check with your airline and your destination country's local consulate or embassy for the most up-to-date information.

How to find the cheapest flights from Cardiff Airport (CWL) to San Francisco International Airport (SFO)

  • $4,683 is currently the best price for a one-way ticket from Cardiff Airport to San Francisco International Airport. A return flight starts at $986. These fares may change depending on availability and demand.

  • Don't leave things to the last minute. You're more likely to find cheap flight tickets from CWL to SFO if you book early. Airlines often offer some excellent early bird deals.

  • Getting cheap flight tickets from Cardiff Airport to San Francisco International Airport is more likely if you're flexible with your dates. Try using the 'Whole month' tool to see the lowest prices throughout the month and score a great deal.

  • Sign into your online account or use the app to create a Price Alert. We'll let you know straight away if there's a cheaper deal on this route. It's simple to do, and it'll save you time checking for cheap flight tickets from CWL to SFO every day.

  • Use filters to tailor your flights from Cardiff Airport to San Francisco International Airport. Enter your ideal departure and arrival times, airlines and number of stops. Alternatively, sort your results by 'Cheapest' to see the best deals.

Handy information about Cardiff Airport (CWL)

  • Cardiff Airport is around 27 kilometres from central Cardiff. If you're driving, catching a cab or ride-sharing from the centre, it'll take 31 minutes or so to get there, depending on traffic. If you're planning to take public transport, expect the journey time to be approximately 1 hour and 6 minutes.

  • Taking an early flight from Cardiff Airport to San Francisco International Airport? Avoid the last-minute rush to the airport (and get some extra shut-eye) by picking one of these stays near CWL:

Arriving at San Francisco International Airport (SFO)

Getting from San Francisco International Airport (SFO) to central San Francisco

  • San Francisco International Airport is approximately 21 kilometres from the centre of San Francisco. With your own car rental or if you take a cab, the drive is about 20 minutes.

  • It takes roughly 47 minutes to get there using public transport.

When to fly to San Francisco International Airport (SFO)

  • The quietest month for a flight from Cardiff Airport to San Francisco International Airport is February, while August is the most popular. Choose the ideal time to go to San Francisco based on whether you prefer a laid-back vibe or a more bustling atmosphere.

  • Lock in your flight from Cardiff Airport to San Francisco International Airport for September if you want to visit San Francisco during its warmest month. Expect temperatures of between 12ºC and 22ºC.

  • If you like travelling in cooler conditions, look for a cheap ticket from CWL to SFO in January. Average temperatures are between 6ºC and 16ºC then.

More about San Francisco

  • As soon as you've booked your flights from CWL to SFO, you'll need to find a hotel in San Francisco. Make one of these options your base for exploring this popular destination:

  • All great holidays should include a little sightseeing. Golden Gate Bridge, Alcatraz Island and Lombard Street are must-have experiences during your San Francisco visit.

Complete your San Francisco trip with hotels and a car rental

  • We've got more party tricks up our sleeve than just comparing flights. Once you've booked your cheap ticket to San Francisco International Airport, explore our great car rental offers that'll give you the freedom to travel around at your own pace. Next, take a look at our exclusive rates for hotels to find the perfect San Francisco stay.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.