Cheap flights from Detroit to London from $317

The month of January is, on average, the cheapest month to fly to London Heathrow Airport from Detroit, with most prices found around $888. If you’re not able to fly to London Heathrow Airport in January, then August is your next best option. Flight prices from Detroit to London Heathrow Airport during August average around $1,055.

Our data shows that Monday is the least expensive day to fly to London Heathrow Airport. Tickets to fly out on this day can be as low as $1,064. The most expensive day to fly to London Heathrow Airport is Friday, with ticket prices averaging around $1,166.

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 Detroit to London Heathrow Airport in the evening for as low as $1,078. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the afternoon are often more expensive with an average ticket price of $1,208.

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

You are more likely to see cheaper flights to London Heathrow Airport from Detroit when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around $1,204 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from Detroit for as low as $1,017 on momondo.

There are 3 cabin classes available to choose from on Detroit 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.

No. A direct flight is the cheapest option for a flight between Detroit to London Heathrow Airport.

As of October 2026, prices for Detroit to London Heathrow Airport flights are approximately 36% cheaper when compared to flights at the same time last year.

JetBlue is the most popular carrier operating from Detroit to London Heathrow

Delta, JetBlue and Virgin Atlantic are the top three most popular airlines that fly to London Heathrow Airport from Detroit according to our data. Delta is the first choice among our users, with 44% of people opting to fly with this airline when traveling to London Heathrow Airport. Keep in mind that there are 9 different airlines that fly to London Heathrow Airport on a routine basis, so you have a few additional options to choose from.

Istanbul (IST) was the most common stop: 50% of momondo users choosing 1-stop flights on this route connected there.

Flights via New York (JFK) offer the lowest average round-trip price of $690.

Flights connecting via Boston (BOS) have the shortest average one-way travel time: 10h 27m.

Boston (BOS) has the shortest average layover time for this route: 2h 32m.

The number of flights available between Detroit and London Heathrow Airport is 6 per day as of October 2026. The most frequent departure time is 6:00PM, with 100% of daily flights leaving in the evening.

As of October 2026, 42 flights take off from Detroit and land in London Heathrow Airport each week. The most common flight departure day for this route is Mon, with 14% of weekly flights taking off on this day.