Cheap Flights from Detroit to London Heathrow

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Compare Detroit to London Heathrow flight deals

Find the cheapest month or even day of the year to fly to London Heathrow

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Flight deals from Detroit to London Heathrow

Looking for a cheap last-minute deal or the best return flight from Detroit to London Heathrow? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Detroit to London Heathrow

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Detroit to London Heathrow flights are currently cheapest in July.

Direct flights from Detroit to London Heathrow

Detroit to London Heathrow: Alternative routes

Compare routes from Detroit to London below. You may find an airport to fly into that's cheaper, faster, or easier than London Heathrow.

Detroit to London: Flight information

The things to know before you go.
Cheapest flight foundر.ق.‏ 999
Cheapest month to flyJuly
Average flight time7 hrs, 31 mins
Most popular airlineDelta
Average flights per week39

Finding cheap flights from Detroit to London Heathrow: Frequently asked questions

The best price we found for a return flight from Detroit to London Heathrow is ر.ق.‏ 2,421. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
7 hours and 31 minutes is the average flight time from Detroit to London Heathrow.
Delta, Virgin Atlantic and KLM fly direct from Detroit to London Heathrow.
As of May 2025, there are 39 flights per week flying from Detroit to London Heathrow.
The cheapest month to fly from Detroit to London Heathrow is usually May 2025.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Detroit to London Heathrow Airport on Monday, 19 May 2025.
Yes – the average flight time is 7 hours and 31 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to London Heathrow but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to London is around 40 days in advance, so don’t leave your flight to the last minute.

Flying from Detroit to London Heathrow Airport (LHR): what you need to know

  • Detroit's main base, Detroit Metropolitan Wayne County Airport (DTW), is where countless incredible trips begin. Explore the departure options from here when searching for a flight from Detroit to London Heathrow Airport (LHR).

  • 7 hours 36 minutes is the average time for a direct flight from Detroit to London Heathrow Airport.

  • London Heathrow Airport is located in London. The city operates in the UTC+0 timezone and is 4 hours ahead of Detroit.

  • The most popular route is from Detroit Metropolitan Wayne County Airport (DTW) to London Heathrow Airport (LHR), with 10 direct services every week. If you want to get going as soon as possible, the earliest flight from DTW to LHR is the 18:00 Delta service. If you have other commitments or plans on your day of travel, the last departure is at 19:15 with Delta.

  • To ensure you get on your flight from Detroit to LHR, leave plenty of time for things like check-in and baggage drop. Turning up two hours ahead of international departures and one hour before domestic flights is the general rule.

  • August is a busy time to fly out. If you're taking off then or during a major holiday like Thanksgiving, show up even earlier. Aim for at least two hours ahead for domestic flights and as much as four hours for international journeys.

Airports in Detroit

Detroit Metropolitan Wayne County Airport (DTW)

  • Detroit Metropolitan Wayne County Airport (DTW) is a convenient option for travelling directly to your destination. Nonstop flights from Detroit to London Heathrow Airport (LHR) can be booked from this terminal.

  • You can lock in a direct flight from Detroit to London Heathrow Airport with Delta. This top carrier operates services from DTW.

  • A stopover is the ideal opportunity to take a travel break — and perhaps even explore another city. When browsing flights from Detroit to LHR departing from Detroit Metropolitan Wayne County Airport (DTW), uncheck the 'Direct flights only' box to see where you can stop along the way. Consider one of these popular options:

    • Washington Dulles International Airport (IAD)

    • Montreal-Pierre Elliott Trudeau International Airport (YUL)

    • Pearson International Airport (YYZ)

  • From central Detroit, DTW is around 32 kilometres away. Use navigation apps or check the official airport website to work out the best way to get there.

  • Booked an early flight from Detroit to London Heathrow Airport? Avoid the hassle of rushing to the terminal (and enjoy a little extra shut-eye) by choosing one of these hotels near Detroit Metropolitan Wayne County Airport:

About London Heathrow Airport (LHR)

Getting from London Heathrow Airport (LHR) to central London

  • London Heathrow Airport is approximately 31 kilometres from the centre of London. With your own car rental or if you take a cab, the drive is about 57 minutes.

  • Travelling to the centre on public transport takes about 1 hour and 1 minute.

How to find the cheapest flights from Detroit to London Heathrow Airport (LHR)

  • ر.ق.‏ 999 is the cheapest price we've found for a one-way ticket from Detroit to London Heathrow Airport. Return flights start from ر.ق.‏ 2,421. Fares are subject to availability and may change at any time.

  • You're more likely to find cheap tickets from Detroit to LHR when you book 10 months before takeoff. We crunched the flight price data and found that's the time fares for this route are usually at their lowest.

  • July is the cheapest month for tickets from Detroit to London Heathrow Airport. If you're looking to travel during a different time of year, use the 'Whole month' search feature to see the lowest prices for each month.

  • Log into your online account or use the app to create a Price Alert. You'll get notified right away if there's a better deal on this route. It doesn't take long, and it'll save you from searching for cheap flight tickets from Detroit to LHR every day.

  • Use the filters to tailor your flights from Detroit to London Heathrow Airport. Enter your ideal arrival and departure times, number of stops and airlines. You can also sort your results by 'Cheapest' to find the best deals.

The best time to fly from Detroit to London Heathrow Airport (LHR)

  • February is the quietest time to travel to London. Alternatively, follow the crowds and go in July. This is the busiest month for flights from Detroit to London Heathrow Airport.

  • Schedule your flight from Detroit to LHR for July if you're eager to experience the city during its warmest month. You can expect temperatures in London to range from 11ºC to 26ºC.

  • Visit in January if you want cooler conditions. Temperatures average between 0ºC and 9ºC. However, this city delivers on a good time whenever you book your cheap flights from Detroit to London Heathrow Airport.

More about London

Complete your London trip with a car rental

  • Shut down all those tabs and let us do the hard work for you. We've also got incredible deals on car rentals in London once you've booked your hotel and cheap flight from Detroit to London Heathrow Airport. Easily compare prices in one place and drive away with a bargain that fits your budget.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.