Can I get a flight from London Heathrow Airport to Miami on Finnair for under £680?

There are 7 flights available on Finnair from London Heathrow Airport to Miami for under £680. These prices can change based on many factors including date and time. To find LHR-MIA flight prices for your dates, click here.

How far ahead should I book a flight from London Heathrow Airport to Miami with Finnair?

Booking with Finnair 49 days in advance of your planned departure date is, on average, the best time to get cheap flights from London Heathrow Airport to Miami. 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 Heathrow Airport to Miami with Finnair?

Currently, the most affordable month to book a Finnair flight from London Heathrow Airport to Miami in January, with an average price of £459. Conversely, traveling with Finnair from London Heathrow Airport to Miami in June will be the most expensive, with an average cost of £700. Various factors influence flight prices, so comparing airlines, departure airports, and times can help reduce costs.

Weekly Finnair flight availability from London Heathrow Airport to Miami

The most Finnair flights from LHR to MIA are scheduled on a Monday (3 on average). You will have fewer Finnair flight options on Monday, which is when the least amount of flights are scheduled (3 on average).

In terms of precipitation, rainfall in Miami ranges from 41.0 - 252.0 inches per month. September is typically the wettest month, when rainfall can reach 252.0 mm. January is typically the driest time to visit Miami when rainfall is around 41.0 mm.

If weather is an important factor for your trip to Miami, 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 29.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 20.0 C).

£436+ Finnair Flights from Heathrow to Miami

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Cheapest Finnair flights from Heathrow to Miami
Explore the most affordable Finnair flight options available from Heathrow to Miami. Find the lowest fares with prices last updated on 23 June 2026.

Fri 10/708:55

LHR

MIA

1 stop16h 40m

Finnair

Mon 13/717:00

MIA

LHR

1 stop12h 30m

Finnair

Deal found 18/6£504

Tue 7/712:15

LHR

MIA

Nonstop9h 40m

Finnair

Sat 11/718:33

MIA

LHR

1 stop22h 07m

Finnair

Deal found 21/6£505

Mon 29/612:15

LHR

MIA

Nonstop9h 40m

Finnair

Mon 13/718:33

MIA

LHR

1 stop22h 07m

Finnair

Deal found 22/6£506

Can I get a flight from London Heathrow Airport to Miami on Finnair for under £680?
There are 7 flights available on Finnair from London Heathrow Airport to Miami for under £680. These prices can change based on many factors including date and time. To find LHR-MIA flight prices for your dates, click here.

Finnair flights from Heathrow to Miami in 2026

One-way from	£436
Return from	£504
Popular in	December
Cheapest in	September
Average price (all airlines)	£609

Finnair
28/11
Nonstop
10h 00m total
London to Miami

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Finnair
10/7-13/7
2 total stops
29h 10m total
London to Miami

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Highest demand for flights from London Heathrow to Miami; 1% potential price increase.

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Best time to find cheap flights from London Heathrow to Miami; 1% potential price drop.

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Average price for all London Heathrow to Miami flights (one-way and round-trip).

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When is the best time to book a flight to Miami with Finnair?

The best time to book a flight to Miami with Finnair is 49 days before departure. On average, fares are higher if you book 38 days before departure.

Which month is the cheapest to fly Economy class from London Heathrow Airport to Miami?

For Economy class flights, the cheapest month to fly this route is January. The most expensive months are June and March.

Best time to book a flight from Heathrow to Miami

Have a flexible travel schedule? Discover the best time to fly to Miami from Heathrow with our price prediction graph.

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Finnair flights from London Heathrow Airport to Miami (LHR - MIA)

Find Finnair flight deals from Heathrow to Miami

Cheapest Finnair flights from Heathrow to MiamiExplore the most affordable Finnair flight options available from Heathrow to Miami. Find the lowest fares with prices last updated on 23 June 2026.

Explore the most affordable Finnair flight options available from Heathrow to Miami. Find the lowest fares with prices last updated on 23 June 2026.

Best Finnair flights from Heathrow to MiamiDiscover carefully curated Finnair flight deals from Heathrow to Miami that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 23 June 2026.

Discover carefully curated Finnair flight deals from Heathrow to Miami that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 23 June 2026.

Direct Finnair flights from Heathrow to MiamiExplore direct Finnair flight options from Heathrow to Miami based on user searches, and compare prices and availability for your desired travel dates. Data last updated 23 June 2026.

Explore direct Finnair flight options from Heathrow to Miami based on user searches, and compare prices and availability for your desired travel dates. Data last updated 23 June 2026.

Last-minute Finnair flights from Heathrow to MiamiDiscover last-minute Finnair flight deals from Heathrow to Miami. Data last updated 23 June 2026 and is based on user searches.

Discover last-minute Finnair flight deals from Heathrow to Miami. Data last updated 23 June 2026 and is based on user searches.

One-way Finnair flights to MiamiSearch for one-way Finnair flight options to Miami. Find affordable one-way fares based on user searches. Data last updated 23 June 2026.

Search for one-way Finnair flight options to Miami. Find affordable one-way fares based on user searches. Data last updated 23 June 2026.

Can I get a flight from London Heathrow Airport to Miami on Finnair for under £680?

Finnair flights from Heathrow to Miami in 2026

Find detailed information about Finnair flights from Heathrow to Miami. Explore the options provided by Finnair to plan your journey from Heathrow to Miami. Data last updated 23 June 2026.

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Average price (all airlines)

When is the best time to book a flight to Miami with Finnair?

Which month is the cheapest to fly Economy class from London Heathrow Airport to Miami?

Weekly Finnair flight availability from London Heathrow Airport to Miami

Rainfall in Miami by month

Temperature in Miami by month

Best time to book a flight from Heathrow to Miami

Have a flexible travel schedule? Discover the best time to fly to Miami from Heathrow with our price prediction graph.

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 Heathrow to Miami on another airline

Consider alternative airlines that service the Miami area. Flight routes are based on user searches made on Cheapflights and were last updated on 23 June 2026.

Other Finnair flights from Heathrow

Browse through other Finnair flights departing from Heathrow. Flight routes are based on user searches made on Cheapflights and were last updated on 23 June 2026.

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Complete your trip to Miami by adding a car hire and/or hotel booking to your travel itinerary.

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Other popular destinations in North America

If Miami is not for you, choose from these other destinations located in North America. Flight routes are based on user searches made on Cheapflights and were last updated on 23 June 2026.

Popular flights with Finnair

Browse through some of the most popular routes that Finnair offers at this time. Flights are based on user searches made on Cheapflights and were last updated on 23 June 2026.

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Cheapest Finnair flights from Heathrow to Miami
Explore the most affordable Finnair flight options available from Heathrow to Miami. Find the lowest fares with prices last updated on 23 June 2026.

Best Finnair flights from Heathrow to Miami
Discover carefully curated Finnair flight deals from Heathrow to Miami that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 23 June 2026.

Direct Finnair flights from Heathrow to Miami
Explore direct Finnair flight options from Heathrow to Miami based on user searches, and compare prices and availability for your desired travel dates. Data last updated 23 June 2026.

Last-minute Finnair flights from Heathrow to Miami
Discover last-minute Finnair flight deals from Heathrow to Miami. Data last updated 23 June 2026 and is based on user searches.

One-way Finnair flights to Miami
Search for one-way Finnair flight options to Miami. Find affordable one-way fares based on user searches. Data last updated 23 June 2026.