Flight tickets from Cardiff to San Francisco International

Compare Cardiff to San Francisco International flight deals

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

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Flight deals from Cardiff to San Francisco International

Looking for a cheap last-minute deal or the best return flight from Cardiff Airport to San Francisco International Airport? If you want to travel next month, return fares start from ₹ 104,916. 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 September.

Cardiff to San Francisco: Flight information

The things to know before you go.
Cheapest flight found₹ 46,990
Cheapest month to flySeptember

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 ₹ 92,825. 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 ₹ 92,825.
As of May 2026, there are no flights flying from Cardiff to San Francisco International.
The cheapest month to fly from Cardiff to San Francisco International is usually September.
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 Monday, 28 September 2026.
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, Air France offers the cheapest flight tickets to San Francisco International.

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

  • San Francisco's timezone is UTC-7, which makes San Francisco seven hours behind Cardiff.

  • Arriving two hours before an international flight and one hour ahead of a domestic departure are golden rules for stress-free travel. Make sure you're at the airport on time to catch your CWL to SFO flight.

  • You can expect longer queues during popular months such as June. Arriving up to four hours in advance for an international flight and two hours for domestic departures is a smart move.

  • Choose a stopover if you'd love to break up your flight. Simply deselect 'Direct flights only' to look at your options for tickets from Cardiff Airport to San Francisco International Airport. Dublin Airport is a popular stopover on the CWL to SFO route.

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

  • Currently, ₹ 46,990 is the cheapest price we've seen for a one-way Cardiff Airport to San Francisco International Airport flight. The best price for a return ticket is ₹ 92,825. Bear in mind that fares may change due to demand at the time of booking.

  • To score cheap tickets from CWL to SFO, book as early as you can. Airlines generally offer their best fares when flights are first made available.

  • If you're willing to be flexible with your travel plans, use the 'Whole month' search tool. It'll find the lowest price in each month when searching for your flight from Cardiff Airport to San Francisco International Airport.

  • Never miss a deal on cheap flights from CWL to SFO by setting up a Price Alert. We'll send you an email or notification on the app when a new low fare is offered.

  • Tailor your trip using filters. Choose your departure and arrival times, total journey duration and airlines. You can also sort your results by 'Fastest,' 'Best' or 'Cheapest' flights from Cardiff Airport to San Francisco International Airport.

Handy information about Cardiff Airport (CWL)

  • 66.16% of flights leaving from Cardiff Airport reach their destination on time.

  • To reach Cardiff Airport from central Cardiff, it takes around 30 minutes if you're travelling by car. Of course, this depends on traffic. It's approximately 27 kilometres from the airport to the city centre.

  • Expect a trip time of around 1 hour 5 minutes on public transport.

  • Looking for a convenient hotel near CWL? If you've booked an early flight from Cardiff Airport to San Francisco International Airport, these stays will have you moments from your departure gate:

Arriving at San Francisco International Airport (SFO)

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

  • San Francisco International Airport is roughly 21 kilometres from the centre of San Francisco. The drive time takes about 20 minutes.

  • When travelling by public transport, expect a journey time of about 45 minutes.

When to fly to San Francisco International Airport (SFO)

  • It's time to plan your travel dates for your flight from Cardiff Airport to San Francisco International Airport. August is the busiest month to head to San Francisco. If you're after a quieter vibe, go in February.

  • When booking your flight from Cardiff Airport to San Francisco International Airport, consider the kind of weather you enjoy. September is the warmest month in San Francisco, with the temperature ranging from 12ºC to 22ºC.

  • Search for cheap tickets from CWL to SFO in January if you like travelling in cooler conditions. Temperatures are at their lowest around then, ranging between 6ºC and 16ºC on average.

Explore more of United States

  • You've visited San Francisco, now it's time to explore more of United States. Journey around 64 kilometres south-east to San Jose to tick off its popular sights. From Winchester Mystery House to Rosicrucian Egyptian Museum and San Jose Museum of Art, you've got a jam-packed schedule ahead.

  • Fresno is another favourite destination in United States and is around 257 kilometres south-east of San Francisco. No trip is complete without dropping by Forestiere Underground Gardens, Fresno Chaffee Zoo and Shinzen Japanese Garden.

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