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.

£660 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.

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

12h 10m1 stop Denver Intl

08:30 - 20:59LHR London Heathrow-HLN Helena

19h 29m2 stops Frankfurt am Main Denver Intl

£660Multiple Airlines

Wed, 6 Jan - Wed, 13 Jan

07:00 - 09:10HLN Helena-LHR London Heathrow

19h 10m2 stops Denver Intl Newark

08:30 - 20:59LHR London Heathrow-HLN Helena

19h 29m2 stops Frankfurt am Main Denver Intl

£663Multiple Airlines

Wed, 6 Jan - Wed, 13 Jan

12:57 - 10:00HLN Helena-LHR London Heathrow

14h 03m1 stop Salt Lake City

06:15 - 22:24LHR London Heathrow-HLN Helena

23h 09m2 stops Paris Charles de Gaulle Salt Lake City

£670Delta

Wed, 30 Sep - Wed, 7 Oct

05:45 - 10:00HLN Helena-LHR London Heathrow

21h 15m1 stop Salt Lake City

10:45 - 22:41LHR London Heathrow-HLN Helena

18h 56m1 stop Salt Lake City

£672Delta

Wed, 6 Jan - Wed, 13 Jan

07:15 - 10:20HLN Helena-LHR London Heathrow

20h 05m2 stops Salt Lake City Minneapolis St Paul

06:15 - 22:24LHR London Heathrow-HLN Helena

23h 09m2 stops Paris Charles de Gaulle Salt Lake City

£674Delta

Wed, 30 Sep - Wed, 7 Oct

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

60h 00m2 stops Denver Intl Toronto Pearson Intl

16:40 - 21:31LHR London Heathrow-HLN Helena

35h 51m2 stops Munich Franz Josef Strauss Denver Intl

£683United Airlines

Fri, 23 Oct - Mon, 2 Nov

12:57 - 10:00HLN Helena-LHR London Heathrow

14h 03m1 stop Salt Lake City

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

18h 29m1 stop Salt Lake City

£686KLM

Wed, 30 Sep - Wed, 7 Oct

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

12h 10m1 stop Denver Intl

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

37h 53m2 stops Munich Franz Josef Strauss Denver Intl

£706United Airlines

Thu, 1 Oct - Thu, 8 Oct

06:25 - 11:35HLN Helena-LHR London Heathrow

22h 10m2 stops Denver Intl Houston George Bush Intcntl

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

37h 53m2 stops Munich Franz Josef Strauss Denver Intl

£709United Airlines

Thu, 1 Oct - Thu, 8 Oct

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

12h 10m1 stop Denver Intl

11:10 - 21:31LHR London Heathrow-HLN Helena

41h 21m2 stops Munich Franz Josef Strauss Denver Intl

£710United Airlines

Fri, 23 Oct - Mon, 2 Nov

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Delta flights from Helena to London

Our best Delta deals on Helena to London flight tickets

Delta

30 Sept

HLN12:57Helena

14h 03m

1 stop

LHR10:00London Heathrow

7 Oct

LHR06:15London Heathrow

23h 09m

2 stops

HLN22:24Helena

£670

Delta

6 Jan

HLN05:45Helena

21h 15m

1 stop

LHR10:00London Heathrow

13 Jan

LHR10:45London Heathrow

18h 56m

1 stop

HLN22:41Helena

£672

Delta

30 Sept

HLN07:15Helena

20h 05m

2 stops

LHR10:20London Heathrow

7 Oct

LHR06:15London Heathrow

23h 09m

2 stops

HLN22:24Helena

£674

United Airlines flights from Helena to London

Our best United Airlines deals on Helena to London flight tickets

United Airlines

23 Oct

HLN14:30Helena

60h 00m

2 stops

LHR09:30London Heathrow

2 Nov

LHR16:40London Heathrow

35h 51m

2 stops

HLN21:31Helena

£683

United Airlines

1 Oct

HLN14:30Helena

12h 10m

1 stop

LHR09:40London Heathrow

8 Oct

LHR06:55London Heathrow

37h 53m

2 stops

HLN13:48Helena

£706

United Airlines

1 Oct

HLN06:25Helena

22h 10m

2 stops

LHR11:35London Heathrow

8 Oct

LHR06:55London Heathrow

37h 53m

2 stops

HLN13:48Helena

£709

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Fastest return journey

HelenaLondon

HLN Helena - LHR London Heathrow

HLNLHR

Helena

Wed 6/1

14:30-09:40

1 stop12h 10m

London Heathrow

Wed 13/1

08:30-20:59

2 stops19h 29m

£660

HelenaLondon

HLN Helena - LHR London Heathrow

HLNLHR

Helena

Wed 6/1

07:00-09:10

2 stops19h 10m

London Heathrow

Wed 13/1

08:30-20:59

2 stops19h 29m

£663

HelenaLondon

HLN Helena - LHR London Heathrow

HLNLHR

Helena

Wed 30/9

12:57-10:00

1 stop14h 03m

London Heathrow

Wed 7/10

06:15-22:24

2 stops23h 09m

£670

HelenaLondon

HLN Helena - LHR London Heathrow

HLNLHR

Helena

Wed 6/1

05:45-10:00

1 stop21h 15m

London Heathrow

Wed 13/1

10:45-22:41

1 stop18h 56m

£672

HelenaLondon

HLN Helena - LHR London Heathrow

HLNLHR

Helena

Wed 30/9

07:15-10:20

2 stops20h 05m

London Heathrow

Wed 7/10

06:15-22:24

2 stops23h 09m

£674

HelenaLondon

HLN Helena - LHR London Heathrow

HLNLHR

Helena

Fri 23/10

14:30-09:30

2 stops60h 00m

London Heathrow

Mon 2/11

16:40-21:31

2 stops35h 51m

£683

HelenaLondon

HLN Helena - LHR London Heathrow

HLNLHR

Helena

Wed 30/9

12:57-10:00

1 stop14h 03m

London Heathrow

Wed 7/10

10:55-22:24

1 stop18h 29m

£686

HelenaLondon

HLN Helena - LHR London Heathrow

HLNLHR

Helena

Thu 1/10

14:30-09:40

1 stop12h 10m

London Heathrow

Thu 8/10

06:55-13:48

2 stops37h 53m

£706

HelenaLondon

HLN Helena - LHR London Heathrow

HLNLHR

Helena

Thu 1/10

06:25-11:35

2 stops22h 10m

London Heathrow

Thu 8/10

06:55-13:48

2 stops37h 53m

£709

HelenaLondon

HLN Helena - LHR London Heathrow

HLNLHR

Helena

Fri 23/10

14:30-09:40

1 stop12h 10m

London Heathrow

Mon 2/11

11:10-21:31

2 stops41h 21m

£710

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	£660
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 £660

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

Luton

Southend-on-Sea

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 £660

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 6/1. 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

Delta flights from Helena to London

Our best Delta deals on Helena to London flight tickets

United Airlines flights from Helena to London

Our best United Airlines 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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