Cheap flights from London Heathrow Airport to Indianapolis from £374

The month of February is, on average, the cheapest month to fly to Indianapolis from London Heathrow Airport, with most prices found around £658. If you’re not able to fly to Indianapolis in February, then September is your next best option. Flight prices from London Heathrow Airport to Indianapolis during September average around £683.

You are more likely to see cheaper flights to Indianapolis from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Indianapolis for around £731 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 Heathrow Airport for as low as £641 on momondo.

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

As of May 2026, prices for London Heathrow Airport to Indianapolis flights are approximately 47% more expensive when compared to flights at the same time last year.

Delta and KLM are the most popular carriers operating from London Heathrow to Indianapolis

British Airways, Aer Lingus and United Airlines are the top three most popular airlines that fly to Indianapolis from London Heathrow Airport 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 149 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.

Monday is statistically the day of the week that experiences the fewest delays on this flight route. Saturday 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 10% of their flights experiencing any sort of delay.

Dublin (DUB) was the most common stop: 52% of momondo users choosing one-stop flights on this route connected there.

Flights via Dublin (DUB) offer the lowest average return price of £715.

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

Washington, D.C. (IAD) has the shortest average stopover time for this route: 1h 20m.