Cheap flights from Michigan to London from £242

In general, January is the cheapest month to fly from Michigan to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £665. The month of April is another great option to travel to London Heathrow Airport, with average flight prices from Michigan averaging around £775.

On average, the least expensive day to fly to London Heathrow Airport from Michigan is on a Thursday. momondo users have found tickets for Thursday departures for as low as £814. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Tuesday as prices are generally higher than usual. According to our data, the average ticket price to London Heathrow Airport on Tuesday is £1,135.

According to our data, the cheapest time of day to fly to London Heathrow Airport is in the evening. momondo users have found flights departing from Michigan to London Heathrow Airport in the evening for as low as £834. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are £926 on average. Flights to London Heathrow Airport from Michigan in the afternoon are generally more expensive because this time of day is more convenient for travellers’ schedules.

Fly from Detroit Metropolitan Wayne County to London Heathrow for the best Michigan - London Heathrow flight prices

You are more likely to see cheaper flights to London Heathrow Airport from Michigan when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around £901 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from Michigan for as low as £768 on momondo.

There is only 1 cabin class available to choose from on Michigan to London Heathrow Airport flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

The number of flights available between Michigan and London Heathrow Airport is 5 per day as of October 2026. The most frequent departure time is 18:00, with 100% of daily flights leaving in the evening.

The number of flights available between Michigan and London Heathrow Airport is 36 per week as of October 2026. The most frequent departure day is Mon, with 17% of weekly flights leaving on this day.