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.

£582 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 - 16:50HLN Helena-LHR London Heathrow

43h 20m2 stops Denver Intl Frankfurt am Main

11:35 - 20:59LHR London Heathrow-HLN Helena

16h 24m1 stop Denver Intl

£582United Airlines

Mon, 7 Dec - Thu, 10 Dec

14:30 - 16:50HLN Helena-LHR London Heathrow

43h 20m2 stops Denver Intl Frankfurt am Main

11:10 - 20:59LHR London Heathrow-HLN Helena

16h 49m2 stops Toronto Pearson Intl Denver Intl

£587United Airlines

Mon, 7 Dec - Thu, 10 Dec

07:00 - 08:30HLN Helena-LHR London Heathrow

42h 30m2 stops Denver Intl Toronto Pearson Intl

07:30 - 20:59LHR London Heathrow-HLN Helena

20h 29m2 stops Frankfurt am Main Denver Intl

£620United Airlines

Mon, 7 Dec - Thu, 10 Dec

13:04 - 10:00HLN Helena-LHR London Heathrow

13h 56m1 stop Salt Lake City

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

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

£656Air France

Mon, 7 Dec - Thu, 10 Dec

07:00 - 07:45HLN Helena-LHR London Heathrow

17h 45m2 stops Salt Lake City Detroit Metropolitan Wayne County

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

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

£660Multiple Airlines

Mon, 7 Dec - Thu, 10 Dec

16:08 - 12:20HLN Helena-LHR London Heathrow

13h 12m1 stop Seattle/Tacoma Intl

14:45 - 15:31LHR London Heathrow-HLN Helena

31h 46m1 stop Seattle/Tacoma Intl

£662Alaska Airlines

Mon, 7 Dec - Thu, 10 Dec

16:08 - 12:20HLN Helena-LHR London Heathrow

13h 12m1 stop Seattle/Tacoma Intl

14:45 - 15:31LHR London Heathrow-HLN Helena

31h 46m1 stop Seattle/Tacoma Intl

£663Alaska Airlines

Mon, 7 Dec - Thu, 10 Dec

16:08 - 12:20HLN Helena-LHR London Heathrow

13h 12m1 stop Seattle/Tacoma Intl

14:45 - 15:31LHR London Heathrow-HLN Helena

31h 46m1 stop Seattle/Tacoma Intl

£664Alaska Airlines

Mon, 7 Dec - Thu, 10 Dec

12:50 - 11:40HLN Helena-LHR London Heathrow

15h 50m2 stops Salt Lake City Atlanta Hartsfield-Jackson

06:20 - 22:41LHR London Heathrow-HLN Helena

23h 21m2 stops Paris Charles de Gaulle Salt Lake City

£666Virgin Atlantic

Tue, 12 Jan - Tue, 19 Jan

13:04 - 10:00HLN Helena-LHR London Heathrow

13h 56m1 stop Salt Lake City

10:45 - 22:26LHR London Heathrow-HLN Helena

18h 41m1 stop Salt Lake City

£672Air France

Mon, 7 Dec - Thu, 10 Dec

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Delta flights from Helena to London

Our best Delta deals on Helena to London flight tickets

Delta

22 Sept

HLN12:57Helena

15h 03m

1 stop

LHR11:00London Heathrow

15 Oct

LHR06:30London Heathrow

22h 54m

2 stops

HLN22:24Helena

£673

Delta

21 Sept

HLN07:15Helena

25h 20m

2 stops

LHR15:35London Heathrow

14 Oct

LHR06:30London Heathrow

22h 54m

2 stops

HLN22:24Helena

£677

Delta

23 Sept

HLN12:57Helena

19h 38m

2 stops

LHR15:35London Heathrow

16 Oct

LHR19:50London Heathrow

23h 38m

2 stops

HLN12:28Helena

£698

United Airlines flights from Helena to London

Our best United Airlines deals on Helena to London flight tickets

United Airlines

7 Dec

HLN14:30Helena

43h 20m

2 stops

LHR16:50London Heathrow

10 Dec

LHR11:35London Heathrow

16h 24m

1 stop

HLN20:59Helena

£582

United Airlines

7 Dec

HLN14:30Helena

43h 20m

2 stops

LHR16:50London Heathrow

10 Dec

LHR11:10London Heathrow

16h 49m

2 stops

HLN20:59Helena

£587

United Airlines

7 Dec

HLN07:00Helena

42h 30m

2 stops

LHR08:30London Heathrow

10 Dec

LHR07:30London Heathrow

20h 29m

2 stops

HLN20:59Helena

£620

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

HelenaLondon

HLN Helena - LHR London Heathrow

HLNLHR

Helena

Mon 7/12

14:30-16:50

2 stops43h 20m

London Heathrow

Thu 10/12

11:35-20:59

1 stop16h 24m

£582

HelenaLondon

HLN Helena - LHR London Heathrow

HLNLHR

Helena

Mon 7/12

14:30-16:50

2 stops43h 20m

London Heathrow

Thu 10/12

11:10-20:59

2 stops16h 49m

£587

HelenaLondon

HLN Helena - LHR London Heathrow

HLNLHR

Helena

Mon 7/12

07:00-08:30

2 stops42h 30m

London Heathrow

Thu 10/12

07:30-20:59

2 stops20h 29m

£620

HelenaLondon

HLN Helena - LHR London Heathrow

HLNLHR

Helena

Mon 7/12

13:04-10:00

1 stop13h 56m

London Heathrow

Thu 10/12

06:20-22:26

2 stops23h 06m

£656

HelenaLondon

HLN Helena - LHR London Heathrow

HLNLHR

Helena

Mon 7/12

07:00-07:45

2 stops17h 45m

London Heathrow

Thu 10/12

06:20-22:26

2 stops23h 06m

£660

HelenaLondon

HLN Helena - LHR London Heathrow

HLNLHR

Helena

Mon 7/12

16:08-12:20

1 stop13h 12m

London Heathrow

Thu 10/12

14:45-15:31

1 stop31h 46m

£662

HelenaLondon

HLN Helena - LHR London Heathrow

HLNLHR

Helena

Mon 7/12

16:08-12:20

1 stop13h 12m

London Heathrow

Thu 10/12

14:45-15:31

1 stop31h 46m

£663

HelenaLondon

HLN Helena - LHR London Heathrow

HLNLHR

Helena

Mon 7/12

16:08-12:20

1 stop13h 12m

London Heathrow

Thu 10/12

14:45-15:31

1 stop31h 46m

£664

HelenaLondon

HLN Helena - LHR London Heathrow

HLNLHR

Helena

Tue 12/1

12:50-11:40

2 stops15h 50m

London Heathrow

Tue 19/1

06:20-22:41

2 stops23h 21m

£666

Fastest return journey

HelenaLondon

HLN Helena - LHR London Heathrow

HLNLHR

Helena

Mon 7/12

13:04-10:00

1 stop13h 56m

London Heathrow

Thu 10/12

10:45-22:26

1 stop18h 41m

£672

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

Fastest flight time	14h 10m
Direct flights	None

The fastest flight from Helena to London takes 14h 10m

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 14h 10m.
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

Ilford

Hastings

Canterbury

Guildford

Chichester

Hayes

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 £582

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 7/12. 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

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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