Flights
Insights
FAQs

Finnair flights from London to Detroit (LON - DTT)

LON — DTT
3 Jun — 10 Jun1
1 adult
1 adult, Economy, 0 bags

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 2026

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 4 May 2026.

One-way from

£637

Return from

£814

Popular in

July

Cheapest in

January

Average price (all airlines)

£727
Finnair
  • Finnair
  • 21/5
  • 1 total stop
  • 13h 52m total
  • London to Detroit
Search Deals
Finnair
  • Finnair
  • 29/5-5/6
  • 3 total stops
  • 52h 08m total
  • London to Detroit
Search Deals
Highest demand for flights from London to Detroit; 12% potential price increase.
Search Deals
Best time to find cheap flights from London to Detroit; 3% potential price drop.
Search Deals
Average price for all London to Detroit flights (one-way and round-trip).
Search Deals

  • How do most travelers feel about Finnair?

    1,392 Cheapflights users have left reviews for Finnair and have rated the airline 7.6/10. If you are looking to travel from London to Detroit on Finnair, input your dates in the form above for our best prices!

  • Can I get a flight from London to Detroit on Finnair for under £736?

    Cheapflights currently has 1 LON-DTT flights for under £736. Flights to Detroit will vary based on many factors, like date and time. Click here to find the best price for your dates on Cheapflights.

Find Finnair flight deals from London to Detroit

Enter your travel dates to find the best prices.

Cheapest Finnair flights from London to Detroit
Explore the most affordable Finnair flight options available from London to Detroit. Find the lowest fares with prices last updated on 4 May 2026.

Fri 29/512:15
LHR
-
DTW
1 stop16h 22m
Finnair
Fri 5/617:29
DTW
-
LHR
2 stops35h 46m
Finnair
Deal found 1/5£814
Sun 31/512:15
LHR
-
DTW
1 stop16h 22m
Finnair
Sun 7/617:29
DTW
-
LHR
2 stops31h 46m
Finnair
Deal found 30/4£838
Sat 16/512:15
LHR
-
DTW
1 stop16h 17m
Finnair
Sat 30/517:42
DTW
-
LHR
1 stop11h 48m
Finnair
Deal found 1/5£853

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.

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Fly from London to Detroit on another airline

Consider alternative airlines that service the Detroit area. Flight routes are based on user searches made on Cheapflights and were last updated on 4 May 2026.
KLM flights from London to Detroit
Virgin Atlantic flights from London to Detroit

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 4 May 2026.
Finnair
7.6
Good
1,392 reviews
Check prices
Overview

Food

6.7

Boarding

7.7

Crew

8.2

Comfort

7.4

Entertainment

6.9

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.