Which airports can I use when flying from Cardiff to St. Louis?

Flights from Cardiff to St. Louis usually depart from Cardiff Wales (CWL) and arrive at Lambert-St Louis (STL).

Can I save money by using flexible dates for flights from Cardiff to St. Louis?

Yes. Flexible dates can save you up to 62% on flights from Cardiff to St. Louis. Tuesday is the cheapest departure day at £684 return on average, while Wednesday is the most expensive at £1,778, a difference of £1,094. KAYAK's flexible dates feature shows options up to three days before and after your selected dates, making it easier to compare nearby fares.

What popular places can I visit in St. Louis?

Some of the most popular sights in St. Louis are St. Louis Union Station, Gateway Arch, and America's Center Convention Complex. These are among the most viewed places in St. Louis on KAYAK.

Do I need a passport to fly from Cardiff to St. Louis?

Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

Have flight prices from Cardiff to St. Louis changed much recently?

Yes. Based on fares seen in the past 5 days, return flight prices on this route showed a wide range, from about £889 to £2,675. That means the highest observed fare was about 3x higher than the lowest one.

What is the time difference between Cardiff and St. Louis?

St. Louis is 6 hours behind Cardiff (Central Time vs British Time). Plan for the time shift when scheduling connections or first-day activities.

Which car hire options are available at Lambert-St Louis Airport (STL)?

Lambert-St Louis Airport (STL) hosts 5 major car hire companies, with daily rates averaging £58 for economy cars. Top options include: • Hertz • Budget • Alamo • Enterprise Rent-A-Car • Payless

How much should I expect to pay for a Cardiff to St. Louis flight?

Return flights from Cardiff to St. Louis range from £730 to £1,777, with an average of £974 over the past 12 months. Anything below £730 counts as a good deal.

How much is a return flight from Cardiff to St. Louis?

Return flights from Cardiff to St. Louis typically range from £730 to £1,777. The lowest price found in the past 5 days was £889 on KLM.

Which airline is the cheapest to fly from Cardiff to St. Louis?

KLM (£889) offered the cheapest return ticket from Cardiff to St. Louis in the last 5 days.

£889 CHEAP FLIGHTS from Cardiff to St. Louis (CWL - STL)

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Cheapest return flight

£889

Typical prices: £730-£1,777

KLM

Sun 23/12Sun 30/12

CWL - STL • 2 stops

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Flight Deals

Cheap Flights from Cardiff to St. Louis (CWL-STL)

Discover the best prices for you by selecting your travel dates on KAYAK.

Return

One-way

Recent return flight deals from Cardiff to St. Louis

Wed, 23 Dec - Wed, 30 Dec

17:30 - 20:43CWL Cardiff Wales-STL Lambert-St Louis

33h 13m2 stops Amsterdam Schiphol Detroit Metropolitan Wayne County

17:13 - 17:00STL Lambert-St Louis-CWL Cardiff Wales

17h 47m2 stops Atlanta Hartsfield-Jackson Amsterdam Schiphol

£889KLM

Fri, 25 Dec - Fri, 1 Jan

10:20 - 20:43CWL Cardiff Wales-STL Lambert-St Louis

16h 23m2 stops Amsterdam Schiphol Detroit Metropolitan Wayne County

11:15 - 09:50STL Lambert-St Louis-CWL Cardiff Wales

16h 35m2 stops Minneapolis St Paul Amsterdam Schiphol

£1,034KLM

Fri, 25 Dec - Fri, 1 Jan

17:30 - 15:26CWL Cardiff Wales-STL Lambert-St Louis

51h 56m2 stops Amsterdam Schiphol Toronto Pearson Intl

15:40 - 17:00STL Lambert-St Louis-CWL Cardiff Wales

19h 20m3 stops Frankfurt am Main Duesseldorf Intl Amsterdam Schiphol

£2,243Multiple Airlines

Fri, 25 Dec - Fri, 1 Jan

10:20 - 23:38CWL Cardiff Wales-STL Lambert-St Louis

19h 18m3 stops Amsterdam Schiphol Toronto Pearson Intl Chicago O'Hare Intl

15:40 - 17:00STL Lambert-St Louis-CWL Cardiff Wales

19h 20m3 stops Frankfurt am Main Duesseldorf Intl Amsterdam Schiphol

£2,675Multiple Airlines

Booking Insights

Price, demand, and travel trends for Cardiff to St. Louis flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights with more confidence.

Prices

Airlines

How much is a return flight from Cardiff to St. Louis? This analysis is based on the cheapest return price found on KAYAK in the last 12 months by searching for a flight from Cardiff to St. Louis departing in December.

Find deals

Cheapest flight	£889

Return flight from Cardiff to St. Louis

When to book flights from Cardiff to St. Louis

Are your dates flexible? Find out the best times to travel from Cardiff to St. Louis based on our flight data from the last year. Discover the cheapest month and even day to fly.

Estimated return price

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns 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.

Do I need a passport to fly from Cardiff to St. Louis?
Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.
How much should I expect to pay for a Cardiff to St. Louis flight?
Return flights from Cardiff to St. Louis range from £730 to £1,777, with an average of £974 over the past 12 months. Anything below £730 counts as a good deal.
Have flight prices from Cardiff to St. Louis changed much recently?
Yes. Based on fares seen in the past 5 days, return flight prices on this route showed a wide range, from about £889 to £2,675. That means the highest observed fare was about 3x higher than the lowest one.
Which car hire options are available at Lambert-St Louis Airport (STL)?
Lambert-St Louis Airport (STL) hosts 5 major car hire companies, with daily rates averaging £58 for economy cars. Top options include:

• Hertz
• Budget
• Alamo
• Enterprise Rent-A-Car
• Payless
Which airports can I use when flying from Cardiff to St. Louis?
Flights from Cardiff to St. Louis usually depart from Cardiff Wales (CWL) and arrive at Lambert-St Louis (STL).
Can I save money by using flexible dates for flights from Cardiff to St. Louis?
Yes. Flexible dates can save you up to 62% on flights from Cardiff to St. Louis. Tuesday is the cheapest departure day at £684 return on average, while Wednesday is the most expensive at £1,778, a difference of £1,094.

KAYAK's flexible dates feature shows options up to three days before and after your selected dates, making it easier to compare nearby fares.
What is the time difference between Cardiff and St. Louis?
St. Louis is 6 hours behind Cardiff (Central Time vs British Time). Plan for the time shift when scheduling connections or first-day activities.
What popular places can I visit in St. Louis?
Some of the most popular sights in St. Louis are St. Louis Union Station, Gateway Arch, and America's Center Convention Complex. These are among the most viewed places in St. Louis on KAYAK.

If your dates are flexible, aim for a Tuesday departure and avoid flying on Wednesday. On this route, Tuesday flights average £684, about £1,094 less than Wednesday fares (62% savings) based on the last 12 months.
If you're arriving late at night and need somewhere to stay, check out these hotels close to Lambert-St Louis Airport.

• Renaissance St. Louis Airport Hotel
• Drury Inn & Suites St. Louis Airport
• DoubleTree by Hilton St. Louis Airport

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CWL - STL

£889 Find Cheap Flights from Cardiff to St. Louis – Compare and Save

Everything you should know

Cheap Flights from Cardiff to St. Louis (CWL-STL)

Recent return flight deals from Cardiff to St. Louis

Recent one-way flight deals from Cardiff to St. Louis

Price, demand, and travel trends for Cardiff to St. Louis flights

How much is a return flight from Cardiff to St. Louis?

Which airline is the cheapest to fly from Cardiff to St. Louis?

Key details for Cardiff to St. Louis flights

Cheapest flight

When to book flights from Cardiff to St. Louis

Your Cardiff to St. Louis flight questions, answered

Your guide to booking Cardiff to St. Louis flights

More options for your flight from Cardiff to St. Louis

Complete your trip to St. Louis with a hotel stay or car hire

Information on your arrival and departure airports

Cabin class types available on flights from Cardiff to St. Louis

Find direct flights to and from Cardiff and St. Louis

Flights from domestic origins to St. Louis

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