Cheap flights from Indiana to London from £151

The cheapest month to fly to London from Indiana is in October. Flight prices, which tend to average around £513, are often lower during this time because this is during the off-season. The month of February is another great option to travel to London, with average flight prices from Indiana averaging around £525.

Our data shows that Wednesday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as £605. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Indiana to London for around £640.

The cheapest time of day to fly to London is in the morning when flights can be purchased for as low as £601. Flights in the afternoon are often more expensive, with an average ticket price of £667.

You are more likely to see cheaper flights to London from Indiana when booking weeks ahead of your departure date. In general, you can expect to find flights to London for around £607 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from Indiana for as low as £489 on momondo.

As of February 2026, 333 flights take off from Indiana and land in London each week. The most common flight departure day for this route is Tue, with 15% of weekly flights taking off on this day.

Flight times from Indiana to London vary, but if you’re flying out of Fort Wayne and flying into London Heathrow Airport (one of the most popular routes), then the duration is 9h 55m on average. Another popular route from Indiana to London is flying from Indianapolis to London Heathrow Airport, which will take roughly 10h 58m. Keep in mind that layovers or delays could extend your travel time.