In terms of precipitation, rainfall in Sioux Falls ranges from 15.0 - 99.0 inches per month. June is typically the wettest month, when rainfall can reach 99.0 mm. January is typically the driest time to visit Sioux Falls when rainfall is around 15.0 mm.

If weather is an important factor for your trip to Sioux Falls, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -9.0 C).

What is the cheapest time of day to fly from CWL to FSD?

When flying from Cardiff to Sioux Falls, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Can I find deals for flights from Cardiff to Sioux Falls that include hotel bookings?

Yes. In addition to deals on Cardiff to Sioux Falls flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Cardiff to Sioux Falls?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Cardiff to Sioux Falls.

Can I find deals for business class flights from Cardiff to Sioux Falls?

Yes. Cheapflights offers flight deals from Cardiff to Sioux Falls by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£1,667+ Cheap Flights from Cardiff to Sioux Falls

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Cheapest flights from Cardiff to Sioux Falls
Explore the most affordable flight options available from Cardiff to Sioux Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 October 2026.

Sun 25/1010:20 -

2 stops38h 35m

Thu 29/1013:00 -

2 stops23h 00m

Deal found 8/10£1,667

Find flight deals from Cardiff to Sioux Falls

Round-trip from	£1,667

KLM
25/10-29/10
4 total stops
61h 35m total
Cardiff to Sioux Falls

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CardiffSioux Falls

CWL Cardiff Wales - FSD Sioux Falls Joe Foss Field

CWLFSD

Cardiff Wales

Sun 25/10

10:20-19:55

2 stops38h 35m

Sioux Falls Joe Foss Field

Thu 29/10

13:00-17:00

2 stops23h 00m

£1,667

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Deals found on 8/10

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Best time to book a flight from Cardiff to Sioux Falls

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CWL-FSD

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Related info for your journey

Can I find deals for flights from Cardiff to Sioux Falls that include hotel bookings?
Yes. In addition to deals on Cardiff to Sioux Falls flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Cardiff to Sioux Falls?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Cardiff to Sioux Falls.
Can I find deals for business class flights from Cardiff to Sioux Falls?
Yes. Cheapflights offers flight deals from Cardiff to Sioux Falls by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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Cheap flights from Cardiff to Sioux Falls from £1,667

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 25/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Cardiff to Sioux Falls

Cheapest flights from Cardiff to Sioux FallsExplore the most affordable flight options available from Cardiff to Sioux Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 October 2026.

Explore the most affordable flight options available from Cardiff to Sioux Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 October 2026.

Best flights from Cardiff to Sioux FallsDiscover carefully curated flight deals from Cardiff to Sioux Falls that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 13 October 2026.

Discover carefully curated flight deals from Cardiff to Sioux Falls that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 13 October 2026.

Last-minute flights from Cardiff to Sioux FallsDiscover last-minute flight deals from Cardiff to Sioux Falls. Data last updated 13 October 2026 and is based on user searches.

Discover last-minute flight deals from Cardiff to Sioux Falls. Data last updated 13 October 2026 and is based on user searches.

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Best time to book a flight from Cardiff to Sioux Falls

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Related info for your journey

Can I find deals for flights from Cardiff to Sioux Falls that include hotel bookings?

How can I find direct flights from Cardiff to Sioux Falls?

Can I find deals for business class flights from Cardiff to Sioux Falls?

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 for Cardiff to Sioux Falls

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Complete your trip

Complete your trip to Sioux Falls by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to United States

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Cardiff and Sioux Falls flights

Browse other Cardiff and Sioux Falls flight options. Last updated on 13 October 2026.

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