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.

£514 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 - 22:55HLN Helena-LHR London Heathrow

25h 25m2 stops Denver Intl Munich Franz Josef Strauss

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

40h 49m2 stops Toronto Pearson Intl Denver Intl

£618United Airlines

Tue, 2 Mar - Thu, 4 Mar

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

19h 40m1 stop Denver Intl

09:30 - 20:59LHR London Heathrow-HLN Helena

42h 29m2 stops Frankfurt am Main Denver Intl

£619United Airlines

Tue, 2 Mar - Thu, 4 Mar

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

19h 40m1 stop Denver Intl

09:30 - 20:59LHR London Heathrow-HLN Helena

42h 29m2 stops Frankfurt am Main Denver Intl

£620United Airlines

Tue, 2 Mar - Thu, 4 Mar

07:00 - 12:00HLN Helena-LHR London Heathrow

22h 00m2 stops Denver Intl Chicago O'Hare Intl

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

20h 29m2 stops Frankfurt am Main Denver Intl

£623United Airlines

Tue, 2 Mar - Thu, 4 Mar

17:00 - 12:20HLN Helena-LHR London Heathrow

12h 20m1 stop Seattle/Tacoma Intl

14:45 - 16:23LHR London Heathrow-HLN Helena

32h 38m1 stop Seattle/Tacoma Intl

£641Alaska Airlines

Wed, 6 Jan - Wed, 13 Jan

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

19h 40m1 stop Denver Intl

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

20h 29m2 stops Frankfurt am Main Denver Intl

£657Lufthansa

Tue, 2 Mar - Thu, 4 Mar

07:00 - 12:00HLN Helena-LHR London Heathrow

22h 00m2 stops Denver Intl Chicago O'Hare Intl

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

20h 29m2 stops Frankfurt am Main Denver Intl

£660Lufthansa

Tue, 2 Mar - Thu, 4 Mar

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

£661Alaska Airlines

Tue, 2 Mar - Thu, 4 Mar

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

Tue, 2 Mar - Thu, 4 Mar

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

£664Multiple Airlines

Wed, 6 Jan - Wed, 13 Jan

Save money when you book flights with momondo

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Alaska Airlines flights from Helena to London

Our best Alaska Airlines deals on Helena to London flight tickets

Alaska Airlines

6 Jan

HLN17:00Helena

12h 20m

1 stop

LHR12:20London Heathrow

13 Jan

LHR14:45London Heathrow

32h 38m

1 stop

HLN16:23Helena

£641

Alaska Airlines

2 Mar

HLN16:08Helena

13h 12m

1 stop

LHR12:20London Heathrow

4 Mar

LHR14:45London Heathrow

31h 46m

1 stop

HLN15:31Helena

£661

Alaska Airlines

2 Mar

HLN16:08Helena

13h 12m

1 stop

LHR12:20London Heathrow

4 Mar

LHR14:45London Heathrow

31h 46m

1 stop

HLN15:31Helena

£662

Lufthansa flights from Helena to London

Our best Lufthansa deals on Helena to London flight tickets

Lufthansa

2 Mar

HLN07:00Helena

19h 40m

1 stop

LHR09:40London Heathrow

4 Mar

LHR07:30London Heathrow

20h 29m

2 stops

HLN20:59Helena

£657

Lufthansa

2 Mar

HLN07:00Helena

22h 00m

2 stops

LHR12:00London Heathrow

4 Mar

LHR07:30London Heathrow

20h 29m

2 stops

HLN20:59Helena

£660

Lufthansa

20 Sept

HLN14:26Helena

12h 14m

1 stop

LHR09:40London Heathrow

11 Oct

LHR09:30London Heathrow

18h 38m

2 stops

HLN21:08Helena

£842

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

HelenaLondon

HLN Helena - LHR London Heathrow

HLNLHR

Helena

Tue 2/3

14:30-22:55

2 stops25h 25m

London Heathrow

Thu 4/3

11:10-20:59

2 stops40h 49m

£618

HelenaLondon

HLN Helena - LHR London Heathrow

HLNLHR

Helena

Tue 2/3

07:00-09:40

1 stop19h 40m

London Heathrow

Thu 4/3

09:30-20:59

2 stops42h 29m

£619

HelenaLondon

HLN Helena - LHR London Heathrow

HLNLHR

Helena

Tue 2/3

07:00-09:40

1 stop19h 40m

London Heathrow

Thu 4/3

09:30-20:59

2 stops42h 29m

£620

HelenaLondon

HLN Helena - LHR London Heathrow

HLNLHR

Helena

Tue 2/3

07:00-12:00

2 stops22h 00m

London Heathrow

Thu 4/3

07:30-20:59

2 stops20h 29m

£623

HelenaLondon

HLN Helena - LHR London Heathrow

HLNLHR

Helena

Wed 6/1

17:00-12:20

1 stop12h 20m

London Heathrow

Wed 13/1

14:45-16:23

1 stop32h 38m

£641

HelenaLondon

HLN Helena - LHR London Heathrow

HLNLHR

Helena

Tue 2/3

07:00-09:40

1 stop19h 40m

London Heathrow

Thu 4/3

07:30-20:59

2 stops20h 29m

£657

HelenaLondon

HLN Helena - LHR London Heathrow

HLNLHR

Helena

Tue 2/3

07:00-12:00

2 stops22h 00m

London Heathrow

Thu 4/3

07:30-20:59

2 stops20h 29m

£660

HelenaLondon

HLN Helena - LHR London Heathrow

HLNLHR

Helena

Tue 2/3

16:08-12:20

1 stop13h 12m

London Heathrow

Thu 4/3

14:45-15:31

1 stop31h 46m

£661

HelenaLondon

HLN Helena - LHR London Heathrow

HLNLHR

Helena

Tue 2/3

16:08-12:20

1 stop13h 12m

London Heathrow

Thu 4/3

14:45-15:31

1 stop31h 46m

£662

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

£664

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Helena to London

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 Helena to London?

United Airlines and Alaska Airlines are the most popular carriers operating from Helena to London

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	£514
Fastest flight time	13h 34m
Direct flights	None

The best one-way flight to London from Helena in the past 72 hours is £514. The best return flight deal from Helena to London found on momondo in the last 72 hours is £618.

The fastest flight from Helena to London takes 13h 34m

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 13h 34m.
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.

Eastbourne

Wembley

Gatwick

Milton Keynes

Southend-on-Sea

Luton

Slough

Ipswich

Maidstone

Folkestone

Hastings

Ilford

Canterbury

Chichester

Hayes

Bedford

Guildford

Colchester

Harlow

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.

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.

Start using Trips

Find my bookings

Get notified when prices go down

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

1 adult

Wed 7/10

Wed 14/10

Email me momondo's favourite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United Kingdom

Nearby airports

Cabin classes

Other United Kingdom destinations

Complete your trip

Feeling lucky

Fly into one of these airports located in London

London City Airport

London Gatwick Airport

London Heathrow Airport

London Luton Airport

London Southend Airport

London Stansted Airport

Cheap flights from Helena to London from £514

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Helena to London departing on 18/12. 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

Alaska Airlines flights from Helena to London

Our best Alaska Airlines deals on Helena to London flight tickets

Lufthansa flights from Helena to London

Our best Lufthansa 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.

See travel insights to London from

How to get the cheapest flight ticket from Helena to London

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

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

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

Complete your trip to London

Explore popular destinations other users love

According to popular flight searches on momondo this year