In terms of precipitation, rainfall in Mariehamn ranges from 20.0 - 70.0 inches per month. August is typically the wettest month, when rainfall can reach 70.0 mm. February is typically the driest time to visit Mariehamn when rainfall is around 20.0 mm.

If weather is an important factor for your trip to Mariehamn, 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 15.0 C. Travellers hoping to avoid the cold should look outside of February, when temperatures are typically at their lowest (around -3.0 C).

What is the cheapest time of day to fly from LHR to MHQ?

When flying from London Heathrow Airport to Mariehamn, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What airport do you fly into for flights to Mariehamn from London Heathrow?

Located just 2.1 mi from the city center, Mariehamn is the airport most travelers will use when flying to Mariehamn from London Heathrow. Booking flights from London Heathrow to Mariehamn (MHQ) should be relatively easy as there are 0 daily inbound flights from London Heathrow from 0 different airlines.

Can I find deals for flights from Heathrow to Mariehamn that include hotel bookings?

Yes. In addition to deals on Heathrow to Mariehamn flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Heathrow to Mariehamn?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Mariehamn.

Can I find deals for business class flights from Heathrow to Mariehamn?

Yes. Cheapflights offers flight deals from Heathrow to Mariehamn by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£231+ Flights from London Heathrow Airport to Mariehamn

Cheap flight deals from Heathrow to Mariehamn

Round-trip from	£231

Finnair
29/8-5/9
2 total stops
19h 45m total
London to Mariehamn

Search Deals

Find flight deals from Heathrow to Mariehamn

Cheapest flights from Heathrow to Mariehamn
Explore the most affordable flight options available from Heathrow to Mariehamn. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 July 2025.

Fri 29/813:00LHR - MHQ

1 stop7h 10mFinnair

Fri 5/922:35MHQ - LHR

1 stop12h 35mFinnair

Deal found 15/7£231

Sun 16/1108:50LHR - MHQ

1 stop9h 10mMultiple Airlines

Tue 18/1117:10MHQ - LHR

1 stop6h 10mMultiple Airlines

Deal found 14/7£264

Best flights from Heathrow to Mariehamn
Discover carefully curated flight deals from Heathrow to Mariehamn that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 15 July 2025.

Fri 29/813:00LHR - MHQ

1 stop7h 10mFinnair

Fri 5/922:35MHQ - LHR

1 stop12h 35mFinnair

Deal found 15/7£231

Sun 16/1108:50LHR - MHQ

1 stop9h 10mMultiple Airlines

Tue 18/1117:10MHQ - LHR

1 stop6h 10mMultiple Airlines

Deal found 14/7£264

Last-minute flights from Heathrow to Mariehamn
Discover last-minute flight deals from Heathrow to Mariehamn. Data last updated 15 July 2025 and is based on user searches.

Fri 29/813:00LHR - MHQ

1 stop7h 10mFinnair

Fri 5/922:35MHQ - LHR

1 stop12h 35mFinnair

Deal found 15/7£231

Fri 29/813:55LHR - MHQ

1 stop5h 40mMultiple Airlines

Fri 5/907:15MHQ - LHR

2 stops9h 55mMultiple Airlines

Deal found 15/7£351

Cheapflights Fare Finder

Use the filters below to find and compare flights from London Heathrow Airport to Mariehamn that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonMariehamn

LHR - MHQ

LHRMHQ

London Heathrow

Fri 29/8

13:00-22:10

1 stop7h 10m

Mariehamn

Fri 5/9

22:35-09:10

1 stop12h 35m

£231

LondonMariehamn

LHR - MHQ

LHRMHQ

London Heathrow

Sun 16/11

08:50-20:00

1 stop9h 10m

Mariehamn

Tue 18/11

17:10-21:20

1 stop6h 10m

£264

Flights are sorted by cheapest return flights first.

Deals found on 15/7

Best time to book a flight from Heathrow to Mariehamn

Have a flexible travel schedule? Discover the best time to fly to Mariehamn from Heathrow 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.

Reviews of airlines servicing Mariehamn

Read through reviews of airlines operating flights from London Heathrow Airport to Mariehamn, such as Finnair. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Finnair

7.6

Good

1,316 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.

Finnair

7.6

Good

1,316 reviews

Finnair

7.6

Good

1,316 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,May 2025

FRA - DFW

Related info for your journey

What airport do you fly into for flights to Mariehamn from London Heathrow?
Located just 2.1 mi from the city center, Mariehamn is the airport most travelers will use when flying to Mariehamn from London Heathrow. Booking flights from London Heathrow to Mariehamn (MHQ) should be relatively easy as there are 0 daily inbound flights from London Heathrow from 0 different airlines.
Can I find deals for flights from Heathrow to Mariehamn that include hotel bookings?
Yes. In addition to deals on Heathrow to Mariehamn flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Heathrow to Mariehamn?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Mariehamn.
Can I find deals for business class flights from Heathrow to Mariehamn?
Yes. Cheapflights offers flight deals from Heathrow to Mariehamn by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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Deals for Heathrow to Mariehamn flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Heathrow to Mariehamn?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Heathrow to Mariehamn.

Can Cheapflights find flights from Heathrow to Mariehamn with no change fees?

Yes, we can. To see specific flights from Heathrow to Mariehamn with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Heathrow to Mariehamn become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Mariehamn from Heathrow today and book when prices fit your budget.

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Cheap flights from London Heathrow Airport to Mariehamn from £231

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 29/8. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Heathrow to Mariehamn

Round-trip from

Find flight deals from Heathrow to Mariehamn

Cheapest flights from Heathrow to MariehamnExplore the most affordable flight options available from Heathrow to Mariehamn. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 July 2025.

Explore the most affordable flight options available from Heathrow to Mariehamn. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 July 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from London Heathrow Airport to Mariehamn that are best for you.

Best time to book a flight from Heathrow to Mariehamn

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

Reviews of airlines servicing Mariehamn

Read through reviews of airlines operating flights from London Heathrow Airport to Mariehamn, such as Finnair. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Mariehamn. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly into for flights to Mariehamn from London Heathrow?

Can I find deals for flights from Heathrow to Mariehamn that include hotel bookings?

How can I find direct flights from Heathrow to Mariehamn?

Can I find deals for business class flights from Heathrow to Mariehamn?

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.

Alternative routes for Heathrow to Mariehamn

See prices for flight routes from nearby airports that may be better suited for you.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Heathrow to Mariehamn?

Why should you use Cheapflights to find cheap flight tickets from Heathrow to Mariehamn?

Can Cheapflights find flights from Heathrow to Mariehamn with no change fees?

Can Cheapflights notify me if prices for flights from Heathrow to Mariehamn become cheaper?

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Heathrow to Mariehamn
Explore the most affordable flight options available from Heathrow to Mariehamn. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 July 2025.