How do I get Price Alerts for flights from Helena to London?

Price Alerts will notify you by email when the price for flights to London from Helena decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.

How can I save money on flights from Helena to London with momondo?

By using tools like our “Price Calendar”, you can see the best days for return flights on your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

How does momondo find its flight prices?

We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.

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

Prices for flights from Helena Airport to London are refreshed on a daily basis.

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

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Helena Airport to London.

What documentation or ID do you need to fly to London?

The required travel and health documents for your London trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

£664 Cheap Flights from Helena to London in 2026

Find the cheapest flights from Helena to London

Return

One-way

Cheap return flights

Enter your travel dates to find the best prices.

07:15 - 11:00HLN Helena-LHR London Heathrow

20h 45m1 stop Salt Lake City

06:30 - 22:24LHR London Heathrow-HLN Helena

22h 54m2 stops Amsterdam Schiphol Salt Lake City

£664KLM

Tue, 6 Oct - Tue, 13 Oct

07:15 - 10:00HLN Helena-LHR London Heathrow

19h 45m1 stop Salt Lake City

20:55 - 22:24LHR London Heathrow-HLN Helena

32h 29m2 stops Amsterdam Schiphol Salt Lake City

£668KLM

Mon, 12 Oct - Tue, 20 Oct

06:28 - 07:10HLN Helena-LHR London Heathrow

18h 42m2 stops Denver Intl Montreal Pierre Elliott Trudeau Intl

06:35 - 21:31LHR London Heathrow-HLN Helena

21h 56m2 stops Munich Franz Josef Strauss Denver Intl

£670Multiple Airlines

Tue, 27 Oct - Fri, 13 Nov

13:08 - 13:45HLN Helena-LHR London Heathrow

17h 37m2 stops Salt Lake City Paris Charles de Gaulle

20:55 - 22:24LHR London Heathrow-HLN Helena

32h 29m2 stops Amsterdam Schiphol Salt Lake City

£671Multiple Airlines

Mon, 12 Oct - Tue, 20 Oct

13:08 - 10:00HLN Helena-LHR London Heathrow

14h 52m1 stop Salt Lake City

06:20 - 22:26LHR London Heathrow-HLN Helena

23h 06m2 stops Paris Charles de Gaulle Salt Lake City

£672Multiple Airlines

Mon, 26 Oct - Wed, 11 Nov

14:23 - 12:00HLN Helena-LHR London Heathrow

15h 37m2 stops Denver Intl Chicago O'Hare Intl

09:30 - 21:31LHR London Heathrow-HLN Helena

19h 01m2 stops Frankfurt am Main Denver Intl

£675United Airlines

Mon, 26 Oct - Wed, 11 Nov

13:08 - 11:00HLN Helena-LHR London Heathrow

14h 52m1 stop Salt Lake City

10:55 - 22:24LHR London Heathrow-HLN Helena

18h 29m1 stop Salt Lake City

£685KLM

Tue, 6 Oct - Tue, 13 Oct

14:30 - 09:40HLN Helena-LHR London Heathrow

12h 10m1 stop Denver Intl

14:50 - 21:08LHR London Heathrow-HLN Helena

13h 18m1 stop Denver Intl

£688United Airlines

Mon, 12 Oct - Tue, 20 Oct

14:30 - 20:40HLN Helena-LHR London Heathrow

23h 10m2 stops Denver Intl Newark

06:55 - 13:48LHR London Heathrow-HLN Helena

37h 53m2 stops Munich Franz Josef Strauss Denver Intl

£712United Airlines

Sat, 10 Oct - Mon, 19 Oct

07:00 - 09:40HLN Helena-LHR London Heathrow

19h 40m1 stop Denver Intl

06:35 - 20:59LHR London Heathrow-HLN Helena

21h 24m2 stops Munich Franz Josef Strauss Denver Intl

£726United Airlines

Fri, 8 Jan - Sat, 16 Jan

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United Airlines flights from Helena to London

Our best United Airlines deals on Helena to London flight tickets

United Airlines

26 Oct

HLN14:23Helena

15h 37m

2 stops

LHR12:00London Heathrow

11 Nov

LHR09:30London Heathrow

19h 01m

2 stops

HLN21:31Helena

£675

United Airlines

12 Oct

HLN14:30Helena

12h 10m

1 stop

LHR09:40London Heathrow

20 Oct

LHR14:50London Heathrow

13h 18m

1 stop

HLN21:08Helena

£688

United Airlines

10 Oct

HLN14:30Helena

23h 10m

2 stops

LHR20:40London Heathrow

19 Oct

LHR06:55London Heathrow

37h 53m

2 stops

HLN13:48Helena

£712

KLM flights from Helena to London

Our best KLM deals on Helena to London flight tickets

KLM

6 Oct

HLN07:15Helena

20h 45m

1 stop

LHR11:00London Heathrow

13 Oct

LHR06:30London Heathrow

22h 54m

2 stops

HLN22:24Helena

£664

KLM

12 Oct

HLN07:15Helena

19h 45m

1 stop

LHR10:00London Heathrow

20 Oct

LHR20:55London Heathrow

32h 29m

2 stops

HLN22:24Helena

£668

KLM

6 Oct

HLN13:08Helena

14h 52m

1 stop

LHR11:00London Heathrow

13 Oct

LHR10:55London Heathrow

18h 29m

1 stop

HLN22:24Helena

£685

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

HelenaLondon

HLN Helena - LHR London Heathrow

HLNLHR

Helena

Tue 6/10

07:15-11:00

1 stop20h 45m

London Heathrow

Tue 13/10

06:30-22:24

2 stops22h 54m

£664

HelenaLondon

HLN Helena - LHR London Heathrow

HLNLHR

Helena

Mon 12/10

07:15-10:00

1 stop19h 45m

London Heathrow

Tue 20/10

20:55-22:24

2 stops32h 29m

£668

HelenaLondon

HLN Helena - LHR London Heathrow

HLNLHR

Helena

Tue 27/10

06:28-07:10

2 stops18h 42m

London Heathrow

Fri 13/11

06:35-21:31

2 stops21h 56m

£670

HelenaLondon

HLN Helena - LHR London Heathrow

HLNLHR

Helena

Mon 12/10

13:08-13:45

2 stops17h 37m

London Heathrow

Tue 20/10

20:55-22:24

2 stops32h 29m

£671

HelenaLondon

HLN Helena - LHR London Heathrow

HLNLHR

Helena

Mon 26/10

13:08-10:00

1 stop14h 52m

London Heathrow

Wed 11/11

06:20-22:26

2 stops23h 06m

£672

HelenaLondon

HLN Helena - LHR London Heathrow

HLNLHR

Helena

Mon 26/10

14:23-12:00

2 stops15h 37m

London Heathrow

Wed 11/11

09:30-21:31

2 stops19h 01m

£675

HelenaLondon

HLN Helena - LHR London Heathrow

HLNLHR

Helena

Tue 6/10

13:08-11:00

1 stop14h 52m

London Heathrow

Tue 13/10

10:55-22:24

1 stop18h 29m

£685

Fastest return journey

HelenaLondon

HLN Helena - LHR London Heathrow

HLNLHR

Helena

Mon 12/10

14:30-09:40

1 stop12h 10m

London Heathrow

Tue 20/10

14:50-21:08

1 stop13h 18m

£688

HelenaLondon

HLN Helena - LHR London Heathrow

HLNLHR

Helena

Sat 10/10

14:30-20:40

2 stops23h 10m

London Heathrow

Mon 19/10

06:55-13:48

2 stops37h 53m

£712

HelenaLondon

HLN Helena - LHR London Heathrow

HLNLHR

Helena

Fri 8/1

07:00-09:40

1 stop19h 40m

London Heathrow

Sat 16/1

06:35-20:59

2 stops21h 24m

£726

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

When to book flights from Helena to London

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

Estimated return price

Cheap Helena to London (HLN to LON) flight deals and tips

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

Best price found	£664
Fastest flight time	19h 40m
Direct flights	None

The best flight deal from Helena to London found on momondo in the last 72 hours is £664

The fastest flight from Helena to London takes 19h 40m

There are no direct flights from Helena to London. There are no popular flight routes from Helena to London.

Search flight deals

Frequently asked questions about flying from Helena to London

How far is Helena to London by plane?
There are 4547.6 mi between Helena and London. A reasonable flight in good conditions will take 19h 40m.
When did momondo last update prices for flights from Helena Airport to London?
Prices for flights from Helena Airport to London are refreshed on a daily basis.
How old do you have to be to fly from Helena Airport to London?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Helena Airport to London.
What documentation or ID do you need to fly to London?
The required travel and health documents for your London trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Frequently asked questions about flying from Helena to London

How do I get Price Alerts for flights from Helena to London?
Price Alerts will notify you by email when the price for flights to London from Helena decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.
How can I save money on flights from Helena to London with momondo?
By using tools like our “Price Calendar”, you can see the best days for return flights on your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.
How does momondo find its flight prices?
We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.

Eastbourne

Wembley

Gatwick

Milton Keynes

Southend-on-Sea

Luton

Slough

Ipswich

Maidstone

Folkestone

Hastings

Ilford

Canterbury

Chichester

Hayes

Guildford

Bedford

Harlow

Colchester

Chelmsford

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Helena to London . Millions of users trust and use momondo every year so you are in good hands.

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

Yes. momondo allows you to filter the results for Helena to London flights to just show those with flexible booking policies.

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

Once you have performed a search for Helena to London flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Of course. momondo tracks the price of Helena to London 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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Cheap flights from Helena to London from £664

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight from Helena to London departing on 6/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from Helena to London

Cheap return flights

Cheap one-way flights

Big names, great deals

Big names, great deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

United Airlines flights from Helena to London

Our best United Airlines deals on Helena to London flight tickets

KLM flights from Helena to London

Our best KLM deals on Helena to London flight tickets

momondo Fare Finder

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

When to book flights from Helena to London

Cheap Helena to London (HLN to LON) flight deals and tips

Best price found

Fastest flight time

Direct flights

Frequently asked questions about flying from Helena to London

Frequently asked questions about flying from Helena to London

Travelling to a place near London?

Why use momondo?

An easier way to manage your London trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United Kingdom

Fly into one of these airports located in London

Airports listed have a maximum distance of 35.6 mi from London

Cabin classes currently available on flights to London

List of cabin classes available on flights landing in London. Availability may vary depending on flight origin and airline.

Popular Cities in the United Kingdom

Popular flights according to clicks in the last 7 days on momondo

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