Cheap flights from London to Indianapolis from £312

The month of September is, on average, the cheapest month to fly to Indianapolis from London, with most prices found around £53. If you’re not able to fly to Indianapolis in September, then March is your next best option. Flight prices from London to Indianapolis during March average around £79.

You are more likely to see cheaper flights to Indianapolis from London when booking weeks ahead of your departure date. In general, you can expect to find flights to Indianapolis for around £742 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Indianapolis from London for as low as £650 on momondo.

You could potentially save up to 27% on your flight if you consider stops on a London to Indianapolis flight.

As of May 2026, prices for London to Indianapolis flights are approximately 22% more expensive when compared to flights at the same time last year.

Delta, British Airways, and Aer Lingus are the most popular carriers operating from London to Indianapolis

British Airways, Aer Lingus and United Airlines are the top three most popular airlines that fly to Indianapolis from London according to our data. British Airways is the first choice among our users, with 51% of people opting to fly with this airline when travelling to Indianapolis. Keep in mind that there are 12 different airlines that fly to Indianapolis on a routine basis, so you have a few additional options to choose from.

Historically, on average around 34% of flights between London and Indianapolis have experienced a delay on any given week. The average delay length over the past 12 months has been 148 minutes.

Generally, flights departing in the evening tend to experience fewer delays. Flights departing at night have, in the past, seen delays more frequently in comparison.

Thursday is statistically the day of the week that experiences the fewest delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

According to our data, Virgin Atlantic have had the fewest delays on this route over the last 12 months, with about 8% of their flights experiencing any sort of delay.

Dublin (DUB) was the most common stop: 73% of momondo users choosing one-stop flights on this route connected there.

Flights via Copenhagen (CPH) offer the lowest average return price of £587.

Flights connecting via Washington, D.C. (IAD) have the shortest average one-way travel time: 11h 37m.

Chicago (ORD) has the shortest average stopover time for this route: 1h 14m.