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Detroit (DTW) to London (LCY) business class award flights

Dates
Travellers and cabin

Who’s flying?

Adults12 and over
1
Cabin
Programmes
Stops
Departure time

00:0024:00

Arrival time

00:0024:00

Flight duration
Any length

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Stops
Departure time

00:0024:00

Arrival time

00:0024:00

Flight duration
Any length
Lowest seen in the last 14 days280,000 milesPlus fees$393.40ProgramAir France-KLM Flying BlueAir France-KLM Flying BlueLight fareAirlineAir FranceAir FranceDepartingSun, Dec 6
Last checked 13d agoChecked

Which program and airline costs you least

Detroit to London in business class starts at 280K miles plus $393.40 — Air France through Air France-KLM Flying Blue. Delta Air Lines through Air France-KLM Flying Blue charges the least cash — $379.40 — but wants 490K miles.

Every way to book DTW to LCY with miles or points
Airline
Air FranceAir Francevia CDG, AMSlast seen 8 Oct, not re-checked sinceAir France-KLM Flying Blue280Kplus $393.40
Delta Air LinesDelta Air Linesvia LGA → JFK (change airports), AMSlast seen 8 Oct, not re-checked sinceAir France-KLM Flying Blue490Kplus $379.40

DTW to LCY in business class: the facts

Over the next 60 days we hold business class seats from Detroit to London on 23 of the 23 departure days we have checked so far (37 days are not checked yet), through 1 program. These figures are counted from the seats stored for those dates, not from a price history; the typical day is the median of each day's cheapest seat. Data updated .

Nonstop or with a connection

No nonstop seats in the window. With a connection on Air France and Delta Air Lines.

How to book it

  1. Air France-KLM Flying Blue books on airfrance.fr: sign in there, search DTW to LCY in business class on a date with space, and pay in miles with the cash on top (from $393).

MilesZone finds the seat; it does not book it or take payment.

Get told the moment a DTW → LCY seat opens.

We re-check that exact seat seconds before the email leaves, so what you open is still there.

Email only. Searching this route stays free for departures in the next 60 days.