$907+ Cheap flights from San Francisco (SFO) to Cardiff (CWL)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/27. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — CWL
Oct 17 — Oct 241
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from San Francisco to Cardiff with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from San Francisco to Cardiff
Cheapest
Best
Last-minute
Cheapest flights from San Francisco to CardiffExplore the most affordable flight options available from San Francisco to Cardiff. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2026.
Explore the most affordable flight options available from San Francisco to Cardiff. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2026.
This KLM deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/272:50 pm -
1 stop19h 10m
Tue 11/35:30 pm -
1 stop26h 15m
Deal found 9/12![KLM logo]()
$907
This Delta deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/277:00 am -
2 stops19h 50m
Tue 11/310:20 am -
2 stops20h 18m
Deal found 9/12![Delta logo]()
$921
This Delta deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/309:46 am -
2 stops24h 14m
Fri 11/610:20 am -
2 stops22h 55m
Deal found 9/15![Delta logo]()
$1,187
This Kiwi.com deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/305:40 pm -
1 stop20h 45m
Mon 10/510:25 am -
2 stops35h 10m
Deal found 9/13![Multiple Airlines logo]()
$1,207
This Kiwi.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/306:20 pm -
1 stop22h 05m
Fri 11/64:05 pm -
1 stop31h 30m
Deal found 9/15![Multiple Airlines logo]()
$1,247
This Mytrip deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/273:45 pm -
3 stops33h 45m
Tue 11/312:15 pm -
3 stops32h 20m
Deal found 9/12![Multiple Airlines logo]()
$1,437
Best flights from San Francisco to CardiffDiscover carefully curated flight deals from San Francisco to Cardiff that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 17, 2026.
Discover carefully curated flight deals from San Francisco to Cardiff that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 17, 2026.
This KLM deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/272:50 pm -
1 stop19h 10m
Tue 11/35:30 pm -
1 stop26h 15m
Deal found 9/12![KLM logo]()
$907
This Delta deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/277:00 am -
2 stops19h 50m
Tue 11/310:20 am -
2 stops20h 18m
Deal found 9/12![Delta logo]()
$921
This Delta deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/11:50 pm -
1 stop19h 10m
Fri 3/1210:20 am -
2 stops23h 12m
Deal found 9/16![Delta logo]()
$925
Last-minute flights from San Francisco to CardiffDiscover last-minute flight deals from San Francisco to Cardiff. Data last updated September 17, 2026 and is based on user searches.
Discover last-minute flight deals from San Francisco to Cardiff. Data last updated September 17, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/305:40 pm -
1 stop20h 45m
Mon 10/510:25 am -
2 stops35h 10m
Deal found 9/13![Multiple Airlines logo]()
$1,207
This KLM deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/272:50 pm -
1 stop19h 10m
Tue 11/35:30 pm -
1 stop26h 15m
Deal found 9/12![KLM logo]()
$907
This Delta deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/277:00 am -
2 stops19h 50m
Tue 11/310:20 am -
2 stops20h 18m
Deal found 9/12![Delta logo]()
$921
This Mytrip deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/273:45 pm -
3 stops33h 45m
Tue 11/312:15 pm -
3 stops32h 20m
Deal found 9/12![Multiple Airlines logo]()
$1,437
This Delta deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/309:46 am -
2 stops24h 14m
Fri 11/610:20 am -
2 stops22h 55m
Deal found 9/15![Delta logo]()
$1,187
This Kiwi.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/306:20 pm -
1 stop22h 05m
Fri 11/64:05 pm -
1 stop31h 30m
Deal found 9/15![Multiple Airlines logo]()
$1,247
Find flight deals from San Francisco to Cardiff
Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to Cardiff (CWL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 17, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $907 (KLM) |
Cheapflights Fare Finder
Customize your flight search to find flights from San Francisco to Cardiff that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 17, 2026.
Use the filters below to find and compare flights from San Francisco to Cardiff that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
San FranciscoCardiff
SFO San Francisco - CWL Cardiff Wales
SFOCWL
San Francisco
Tue 10/27
2:50 pm-5:00 pm
1 stop19h 10m
Cardiff Wales
Tue 11/3
5:30 pm-11:45 am
1 stop26h 15m
$907
Quickest round-trip
San FranciscoCardiff
SFO San Francisco - CWL Cardiff Wales
SFOCWL
San Francisco
Tue 10/27
7:00 am-9:50 am
2 stops19h 50m
Cardiff Wales
Tue 11/3
10:20 am-10:38 pm
2 stops20h 18m
$921
San FranciscoCardiff
SFO San Francisco - CWL Cardiff Wales
SFOCWL
San Francisco
Mon 3/1
1:50 pm-5:00 pm
1 stop19h 10m
Cardiff Wales
Fri 3/12
10:20 am-1:32 am
2 stops23h 12m
$925
Sorted by cheapest first
Compare providers for flights from San Francisco to Cardiff
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Francisco to Cardiff in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on San Francisco-Cardiff flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Francisco-Cardiff flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Francisco-Cardiff flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on San Francisco-Cardiff flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Francisco-Cardiff flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from San Francisco to Cardiff
Have a flexible travel schedule? Discover the best time to fly to Cardiff from San Francisco with our price prediction graph.
SFO-CWL
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Related info for your journey
Find useful and relevant information for your journey from San Francisco to Cardiff. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Cardiff?
Book flights to Cardiff if you plan to visit one of these locationsBridgend
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Cardiff flight routes
Complete your trip
Flights by cabin class
Other flight options
Other flights from San Francisco
Popular flights