How to find the cheapest flight from Southampton (SOU) to St Louis (STL)
How far in advance should I book a flight from Southampton to St Louis?
Travellers have found it’s best to book a flight 57 days in advance to save up to 14% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 57 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Southampton to St Louis 1-2 weeks in advance for as low as £618, or £661 for flights within the next 24 hours.
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From Southampton to St Louis
Are flight prices decreasing from Southampton to St Louis due to COVID-19 (coronavirus)?
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 Southampton 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.
Does it rain more in Southampton or St Louis?
When travelling, it's generally smart to pack in preparation for rain or any other conditions that may arise. The rainfall in Southampton is roughly less than St Louis. You can assume this to be the case over the next 13 days.
Is Southampton weather warmer or cooler than St Louis?
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 Southampton. 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.