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Cheap flights from London to Mariehamn from £137

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London to Mariehamn departing on 8/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags
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Find the cheapest flights from London to Mariehamn

Cheap return flights

Enter your travel dates to find the best prices.
Finnair Logo
13:35 - 21:35
LHR
-
MHQ
6h 00m
1 stop
Finnair Logo
08:25 - 17:05
MHQ
-
LHR
10h 40m
1 stop
£262Finnair
Sun, 28 Jun - Fri, 3 Jul
Finnair Logo
13:35 - 21:35
LHR
-
MHQ
6h 00m
1 stop
Finnair Logo
08:25 - 17:05
MHQ
-
LHR
10h 40m
1 stop
£263Finnair
Sun, 28 Jun - Fri, 3 Jul
Finnair Logo
13:35 - 21:35
LHR
-
MHQ
6h 00m
1 stop
Finnair Logo
08:25 - 17:05
MHQ
-
LHR
10h 40m
1 stop
£264Finnair
Sun, 28 Jun - Fri, 3 Jul
Finnair Logo
13:35 - 21:35
LHR
-
MHQ
6h 00m
1 stop
Finnair Logo
08:25 - 17:05
MHQ
-
LHR
10h 40m
1 stop
£280Finnair
Sun, 28 Jun - Fri, 3 Jul
Multiple Airlines Logo
05:55 - 20:00
STN
-
MHQ
12h 05m
2 stops
Multiple Airlines Logo
16:00 - 18:30
MHQ
-
STN
4h 30m
1 stop
£290Multiple Airlines
Sun, 3 May - Sun, 10 May
Finnair Logo
13:35 - 21:35
LHR
-
MHQ
6h 00m
1 stop
Finnair Logo
08:25 - 17:05
MHQ
-
LHR
10h 40m
1 stop
£304Finnair
Sun, 28 Jun - Fri, 3 Jul
Multiple Airlines Logo
06:40 - 20:00
LHR
-
MHQ
11h 20m
1 stop
Multiple Airlines Logo
16:00 - 08:55
MHQ
-
LHR
18h 55m
1 stop
£316Multiple Airlines
Sun, 3 May - Sun, 10 May
Multiple Airlines Logo
18:10 - 10:35
LHR
-
MHQ
14h 25m
2 stops
Multiple Airlines Logo
16:00 - 08:55
MHQ
-
LHR
18h 55m
1 stop
£352Multiple Airlines
Sun, 3 May - Sun, 10 May
Multiple Airlines Logo
18:00 - 21:50
STN
-
MHQ
25h 50m
1 stop
Multiple Airlines Logo
16:00 - 18:30
MHQ
-
STN
4h 30m
1 stop
£354Multiple Airlines
Sun, 3 May - Sun, 10 May
Multiple Airlines Logo
18:50 - 21:50
LGW
-
MHQ
25h 00m
1 stop
Multiple Airlines Logo
16:00 - 19:35
MHQ
-
LGW
5h 35m
1 stop
£425Multiple Airlines
Sun, 3 May - Sun, 10 May

Finnair flights from London to Mariehamn

Our best Finnair deals on London to Mariehamn flight tickets
Finnair
28 Jun
LHR13:35London Heathrow
6h 00m
1 stop
MHQ21:35Mariehamn
3 Jul
MHQ08:25Mariehamn
14h 15m
1 stop
LHR20:40London Heathrow
£263
Finnair
28 Jun
LHR13:35London Heathrow
6h 00m
1 stop
MHQ21:35Mariehamn
3 Jul
MHQ08:25Mariehamn
10h 40m
1 stop
LHR17:05London Heathrow
£264
Finnair
28 Jun
LHR13:35London Heathrow
6h 00m
1 stop
MHQ21:35Mariehamn
3 Jul
MHQ08:25Mariehamn
10h 40m
1 stop
LHR17:05London Heathrow
£280

momondo Fare Finder

 
Customise your flight search to find flights from London to Mariehamn that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 279,928 searches. Data last updated 22 March 2026.
Use the filters below to find and compare flights from London to Mariehamn that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonMariehamn

LHR - MHQ

LHRMHQ

London Heathrow

Sun 28/6

13:35-21:35

1 stop6h 00m

Mariehamn

Fri 3/7

08:25-17:05

1 stop10h 40m

£262

LondonMariehamn

LHR - MHQ

LHRMHQ

London Heathrow

Sun 28/6

13:35-21:35

1 stop6h 00m

Mariehamn

Fri 3/7

08:25-17:05

1 stop10h 40m

£263

LondonMariehamn

LHR - MHQ

LHRMHQ

London Heathrow

Sun 28/6

13:35-21:35

1 stop6h 00m

Mariehamn

Fri 3/7

08:25-17:05

1 stop10h 40m

£264

LondonMariehamn

LHR - MHQ

LHRMHQ

London Heathrow

Sun 28/6

13:35-21:35

1 stop6h 00m

Mariehamn

Fri 3/7

08:25-17:05

1 stop10h 40m

£280
Fastest return journey

LondonMariehamn

STN - MHQ

STNMHQ

London Stansted

Sun 3/5

05:55-20:00

2 stops12h 05m

Mariehamn

Sun 10/5

16:00-18:30

1 stop4h 30m

£290

LondonMariehamn

LHR - MHQ

LHRMHQ

London Heathrow

Sun 28/6

13:35-21:35

1 stop6h 00m

Mariehamn

Fri 3/7

08:25-17:05

1 stop10h 40m

£304

LondonMariehamn

LHR - MHQ

LHRMHQ

London Heathrow

Sun 3/5

06:40-20:00

1 stop11h 20m

Mariehamn

Sun 10/5

16:00-08:55

1 stop18h 55m

£316

LondonMariehamn

LHR - MHQ

LHRMHQ

London Heathrow

Sun 3/5

18:10-10:35

2 stops14h 25m

Mariehamn

Sun 10/5

16:00-08:55

1 stop18h 55m

£352

LondonMariehamn

STN - MHQ

STNMHQ

London Stansted

Sun 3/5

18:00-21:50

1 stop25h 50m

Mariehamn

Sun 10/5

16:00-18:30

1 stop4h 30m

£354

LondonMariehamn

LGW - MHQ

LGWMHQ

London Gatwick

Sun 3/5

18:50-21:50

1 stop25h 00m

Mariehamn

Sun 10/5

16:00-19:35

1 stop5h 35m

£425

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Mariehamn from

How to get the cheapest flight ticket from London to Mariehamn

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from London to Mariehamn?

Finnair is the most popular carrier operating from London to Mariehamn

When to book flights from London to Mariehamn

Are you open to changing your travel dates? Check out the ideal times to fly from London to Mariehamn according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap London to Mariehamn (LON to MHQ) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London to Mariehamn

Fastest flight time

6h 00m

Direct flights

None
The fastest flight from London to Mariehamn takes 6h 00m
There are no direct flights from London to Mariehamn. There are no popular flight routes from London to Mariehamn.
Search flight deals

  • How far is London to Mariehamn by plane?

    There are 972.7 mi between London and Mariehamn. By plane, this route typically takes 6h 00m.

  • When did momondo last update prices for flights from London to Mariehamn Airport?

    Prices for flights from London to Mariehamn Airport were last updated today.

  • How old do you have to be to fly from London to Mariehamn Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London to Mariehamn Airport.

  • What documentation or ID do you need to fly to Mariehamn Airport?

    The necessary travel and health documents for your Mariehamn Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from London to Mariehamn?

Finding the right flight to Mariehamn from London is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Mariehamn quick and easy, saving you time and money.

Can I find flights from London to Mariehamn with flexible booking policies on momondo?

Yes. All flights to Mariehamn from London on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from London to Mariehamn?

momondo helps you find the best flight between London and Mariehamn by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from London to Mariehamn right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of London to Mariehamn flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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