Cheap flights from Indiana to London from £152

The cheapest month to fly to London from Indiana is in February. Flight prices, which tend to average around £524, are often lower during this time because this is during the off-season. The month of January is another great option to travel to London, with average flight prices from Indiana averaging around £530.

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 £654 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 £565 on momondo.

As of September 2026, 356 flights take off from Indiana and land in London each week. The most common flight departure day for this route is Fri, with 17% of weekly flights taking off on this day.

Flight times from Indiana to London vary, but if you’re flying out of Indianapolis and flying into London Heathrow Airport (one of the most popular routes), then the duration is 9h 47m on average. Another popular route from Indiana to London is flying from South Bend to London Heathrow Airport, which will take roughly 10h 50m. Keep in mind that layovers or delays could extend your travel time.