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Finnair flights from London to Detroit (LON - DTT)
LON — DTT
16 Oct — 23 Oct1
Cheapflights users flying from London to Detroit on Finnair typically fly into Detroit Metropolitan Wayne County and depart from London Heathrow. Select your dates above for pricing.
Finnair flights from London to Detroit in 2025
Find detailed information about Finnair flights from London to Detroit. Explore the options provided by Finnair to plan your journey from London to Detroit. Data last updated 16 September 2025.
Travel insights for Finnair flights from London to Detroit
Get recent, data-driven insights about Finnair flights from London to Detroit including ideal travel times, pricing trends, and more.
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How far ahead should I book a flight from London to Detroit with Finnair?
Use this chart to determine the optimal time to book a return flight from London to Detroit. Price data was last updated on 12 September 2025.
Booking with Finnair 50 days in advance of your planned departure date is, on average, the best time to get cheap flights from London to Detroit. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from London to Detroit with Finnair?
Currently, the most affordable month to book a Finnair flight from London to Detroit in September, with an average price of £481. Conversely, traveling with Finnair from London to Detroit in August will be the most expensive, with an average cost of £705. Various factors influence flight prices, so comparing airlines, departure airports, and times can help reduce costs.
Rainfall in Detroit by month
Plan your trip to Detroit by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Detroit ranges from 46.0 - 79.0 inches per month. August is typically the wettest month, when rainfall can reach 79.0 mm. January is typically the driest time to visit Detroit when rainfall is around 46.0 mm.
Temperature in Detroit by month
Plan your trip to Detroit by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Detroit, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -4.0 C).
Best time to book a flight from London to Detroit
Have a flexible travel schedule? Discover the best time to fly to Detroit from London with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
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Other Finnair flights from London
Browse through other Finnair flights departing from London. Flight routes are based on user searches made on Cheapflights and were last updated on 16 September 2025.
See what others are saying about Finnair
Read reviews and see what other travellers are saying about their experiences with Finnair. Get insights from real passengers regarding the airline's services, customer satisfaction, and overall travel experience. Use these reviews to inform your decision when choosing Finnair for your next flight. Reviews last updated 16 September 2025.
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