How to find the cheapest flight from Belfast International (BFS) to St Louis (STL)
How far in advance should I book a flight from Belfast International to St Louis?
To save up to 14% on this flight, we recommend booking at least 57 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Belfast International to St Louis from £617 1-2 weeks out and tickets from £661 for flights departing within the next 72 hours.
Related info for your journey
From Belfast International to St Louis
Are flight prices decreasing from Belfast International 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 Belfast International 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 Belfast International or St Louis?
Belfast International will have less rainfall in 2 compared to St Louis over the next 24 days.
Is Belfast International 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 Belfast International. 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.