Travellers have found that booking a Wednesday departure is the best way to save up to 12% on the cost of booking your flights compared to booking on days of the week where this route is of high demand.
To save on the cost of your flight from Cardiff to St Louis, book at least 57 days before your planned departure. Booking around this time can save you about 14% on the cost of this flight compared to booking a flight leaving this week. We have found prices from £616 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as £660.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Cardiff to St Louis as you normally would.
At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Cardiff and St Louis for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.
This flight path from Cardiff Cardiff-Wales Arpt to Lambert-St Louis was viewed by 20 users in the past month. Keep an eye out for changes in search interest prior to high and low season.
Expected rainfall in Cardiff is more than in St Louis. You can expect this to be the case over the next 10 days.
Our data indicates that the weather will be 32 °C on average in the month of July. The temperature in St Louis is typically hotter than in Cardiff. If you're traveling when the temperature is at its warmest, push to plan early, as flight price and availability will have an impact on your travels. For the best results, search for flights well in advance or after peak season.