Cheap flights from Missouri to London from £161

The cheapest month to fly to London from Missouri is in April. Flight prices, which tend to average around £88, are often lower during this time because this is during the off-season. The month of September is another great option to travel to London, with average flight prices from Missouri averaging around £245.

Our data shows that Friday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as £478. When flying out on a Tuesday, the most expensive travel day of the week, you can expect to see flight prices from Missouri to London for around £908.

Fly from Lambert-St Louis to London Heathrow for the best Missouri - London flight prices

You are more likely to see cheaper flights to London from Missouri when booking week ahead of your departure date. In general, you can expect to find flights to London for around £676 when searching week before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from Missouri for as low as £610 on momondo.

There are 2 cabin classes available to choose from on Missouri to London flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

You could potentially save up to 59% on your flight if you consider stops on a Missouri to London flight.

As of July 2026, there are 2 flights per day flying from Missouri to London. The most common time of day flights depart is 21:00, with 100% of flights taking off in the evening.

As of July 2026, there are 15 flights per week flying from Missouri to London. The most common day of the week flights depart is Tue, with 33% of flights taking off on this day.