What is the cheapest month to fly from Detroit to London?

Based on current 6-month forward fare data, October 2026 is the cheapest month to fly from Detroit (DTW) to London (LHR), with fares starting from $343.

What is the lowest current fare from DTW to LHR?

The lowest currently-listed fare from Detroit (DTW) to London (LHR) is $343 on 2026-10-31.

How long is the flight from Detroit to London?

Direct flights from DTW to LHR cover approximately 6,046 km (3,757 miles), with an estimated flight time of 7h 7m. Operating airlines: DL.

Cheap flights from Detroit to London

Cheapest current fares: $343 in October 2026, 6,046 km direct flight in ~7h 7m.

Last updated August 11, 2026 · By Flightmaps Editorial

Cheapest month-by-month fares

Lowest available fare per calendar month from Detroit (DTW) to London (LHR). Refreshed daily.

Detroit (DTW) → London (LHR)

October 2026 $343
August 2026 $434
November 2026 $496

Frequently asked questions

What is the cheapest month to fly from Detroit to London?

Based on current 6-month forward fare data, October 2026 is the cheapest month to fly from Detroit (DTW) to London (LHR), with fares starting from $343.
What is the lowest current fare from DTW to LHR?

The lowest currently-listed fare from Detroit (DTW) to London (LHR) is $343 on 2026-10-31.
How long is the flight from Detroit to London?

Direct flights from DTW to LHR cover approximately 6,046 km (3,757 miles), with an estimated flight time of 7h 7m. Operating airlines: DL.

Related guides for this route

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