$344 Cheap Flights from Detroit (DTW) to London (LON)

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Find available prices by choosing your travel dates.

Cheap Flights from Detroit to London (DTW-LON)

Prices were available within the past 7 days and start at $344 for one-way flights and $607 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

JetBlue Airways
JetBlue Airways
Iberia
Scandinavian Airlines
Turkish Airlines
Icelandair
Air Canada
Lufthansa
Delta
Virgin Atlantic
Flights from Detroit (DTW) to London (LGW)
Origin airport
Detroit Metropolitan Wayne County
Destination airport
Gatwick
Roundtrip price
$607
Distance
3776 mi

Detroit to London Flights

The cheapest times to fly from Detroit to London

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Detroit to London are during the month of September. You can find some of the cheapest flights from Detroit to London with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Detroit to London

Sunday is one of the best days to book for cheap flights from Detroit to London: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

How to find cheap round-trip tickets from Detroit to London

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Detroit to London in 2025. You can also book with separate airlines for your outbound and return journeys, from $344 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Detroit to London flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

You could also save big by booking one of Expedia's vacation packages. Bundling together your Detroit to London airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

*Terms apply.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

Frequently asked questions

How much is a flight from Detroit Metropolitan Wayne County Airport (DTW) to London (LON-All Airports)?
Round-trip tickets from Metro Airport to London (LON-All Airports) start from $607. This figure is based on fares offered within the last 7 days on Expedia for flights departing within the next year — make your booking ASAP to avoid missing out. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Metro Airport to London (LON-All Airports)?
The majority of flights can be canceled online, but every airline has a different set of terms and conditions. If you do have to cancel your flight, check out our Customer Service Portal and follow the instructions.
How do I find cheap flights from Detroit Metro Airport to London (LON-All Airports) that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you’re searching for Metro Airport to London (LON-All Airports) flights, you’ll see a “no change fees” filter for you to select.
How far is the flight from DTW to London (LON-All Airports)?
With around 3791 mi separating Detroit and England, your flight will be a long one. Pack wisely and make your time on board comfortable. Things like a sleep mask and a quality neck pillow can make a huge difference.
Which airlines fly direct from Detroit Metro Airport to London (LON-All Airports)?
Flying directly from DTW to London (LON-All Airports) is easy with Delta Air Lines (DL). This leading airline offers 30 flights every month.
Are Metro Airport to London (LON-All Airports) flight tickets cheaper when they're purchased at the last minute?
Flight prices always go up and down, so not always. While last-minute flight deals between Metro Airport and London (LON-All Airports) are of course possible, it’s also a good idea to keep track of prices well before you fly. In fact, some air carriers announce their prices up to a year before the departure date. Expedia is constantly updating the biggest airfare bargains around, so keep checking back and be ready to lock in your seat when the price dips.

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*Available to One Key members.