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.

£478 Cheap Flights from Helena to London in 2026

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0 bags

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Find the cheapest flights from Helena to London

Round-trip

One-way

Cheap return flights

Enter your travel dates to find the best prices.

06:15 - 12:20

HLN

LHR

23h 05m

1 stop

07:25 - 21:33

LHR

HLN

21h 08m

2 stops

£478United Airlines

Tue, 7 Apr - Tue, 14 Apr

14:25 - 06:30

HLN

LHR

33h 05m

2 stops

07:25 - 21:33

LHR

HLN

21h 08m

2 stops

£480United Airlines

Tue, 7 Apr - Wed, 15 Apr

13:02 - 10:00

HLN

LHR

14h 58m

1 stop

10:45 - 22:30

LHR

HLN

17h 45m

1 stop

£487Multiple Airlines

Wed, 18 Mar - Wed, 25 Mar

13:02 - 10:30

HLN

LHR

15h 28m

2 stops

20:00 - 22:30

LHR

HLN

32h 30m

2 stops

£491Multiple Airlines

Tue, 17 Mar - Tue, 24 Mar

06:15 - 12:20

HLN

LHR

23h 05m

1 stop

11:25 - 21:46

LHR

HLN

17h 21m

1 stop

£499United Airlines

Sun, 12 Apr - Wed, 6 May

06:15 - 10:00

HLN

LHR

20h 45m

2 stops

14:50 - 21:46

LHR

HLN

13h 56m

1 stop

£502United Airlines

Mon, 13 Apr - Fri, 1 May

14:25 - 09:40

HLN

LHR

12h 15m

1 stop

09:30 - 21:46

LHR

HLN

19h 16m

2 stops

£502United Airlines

Sun, 12 Apr - Fri, 1 May

13:04 - 13:05

HLN

LHR

17h 01m

2 stops

20:05 - 12:24

LHR

HLN

23h 19m

2 stops

£539Delta

Tue, 14 Apr - Sat, 2 May

13:04 - 16:40

HLN

LCY

20h 36m

2 stops

13:45 - 22:30

LCY

HLN

15h 45m

2 stops

£737Delta

Wed, 15 Apr - Sun, 3 May

13:02 - 16:40

HLN

LCY

20h 38m

2 stops

09:20 - 22:30

LCY

HLN

20h 10m

2 stops

£901Delta

Wed, 1 Apr - Wed, 8 Apr

United Airlines flights from Helena to London

Our best United Airlines deals on Helena to London flight tickets

United Airlines

7 Apr

HLN06:15Helena

23h 05m

1 stop

LHR12:20London Heathrow

14 Apr

LHR07:25London Heathrow

21h 08m

2 stops

HLN21:33Helena

£478

United Airlines

7 Apr

HLN14:25Helena

33h 05m

2 stops

LHR06:30London Heathrow

15 Apr

LHR07:25London Heathrow

21h 08m

2 stops

HLN21:33Helena

£480

United Airlines

12 Apr

HLN06:15Helena

23h 05m

1 stop

LHR12:20London Heathrow

6 May

LHR11:25London Heathrow

17h 21m

1 stop

HLN21:46Helena

£499

Delta flights from Helena to London

Our best Delta deals on Helena to London flight tickets

Delta

14 Apr

HLN13:04Helena

17h 01m

2 stops

LHR13:05London Heathrow

2 May

LHR20:05London Heathrow

23h 19m

2 stops

HLN12:24Helena

£539

Delta

13 May

HLN13:00Helena

21h 30m

2 stops

LHR17:30London Heathrow

21 May

LHR18:15London Heathrow

25h 05m

2 stops

HLN12:20Helena

£565

Delta

1 Apr

HLN13:02Helena

17h 13m

2 stops

LHR13:15London Heathrow

8 Apr

LHR06:30London Heathrow

23h 00m

2 stops

HLN22:30Helena

£650

Fly from

Fly to

Route

Depart

Return

Price

HelenaLondon

HLN - LHR

HLNLHR

Helena

Tue 7/4

06:15-12:20

1 stop23h 05m

London Heathrow

Tue 14/4

07:25-21:33

2 stops21h 08m

£478

HelenaLondon

HLN - LHR

HLNLHR

Helena

Tue 7/4

14:25-06:30

2 stops33h 05m

London Heathrow

Wed 15/4

07:25-21:33

2 stops21h 08m

£480

HelenaLondon

HLN - LHR

HLNLHR

Helena

Wed 18/3

13:02-10:00

1 stop14h 58m

London Heathrow

Wed 25/3

10:45-22:30

1 stop17h 45m

£487

HelenaLondon

HLN - LHR

HLNLHR

Helena

Tue 17/3

13:02-10:30

2 stops15h 28m

London Heathrow

Tue 24/3

20:00-22:30

2 stops32h 30m

£491

HelenaLondon

HLN - LHR

HLNLHR

Helena

Sun 12/4

06:15-12:20

1 stop23h 05m

London Heathrow

Wed 6/5

11:25-21:46

1 stop17h 21m

£499

HelenaLondon

HLN - LHR

HLNLHR

Helena

Mon 13/4

06:15-10:00

2 stops20h 45m

London Heathrow

Fri 1/5

14:50-21:46

1 stop13h 56m

£502

HelenaLondon

HLN - LHR

HLNLHR

Helena

Sun 12/4

14:25-09:40

1 stop12h 15m

London Heathrow

Fri 1/5

09:30-21:46

2 stops19h 16m

£502

HelenaLondon

HLN - LHR

HLNLHR

Helena

Tue 14/4

13:04-13:05

2 stops17h 01m

London Heathrow

Sat 2/5

20:05-12:24

2 stops23h 19m

£539

HelenaLondon

HLN - LCY

HLNLCY

Helena

Wed 15/4

13:04-16:40

2 stops20h 36m

London City

Sun 3/5

13:45-22:30

2 stops15h 45m

£737

HelenaLondon

HLN - LCY

HLNLCY

Helena

Wed 1/4

13:02-16:40

2 stops20h 38m

London City

Wed 8/4

09:20-22:30

2 stops20h 10m

£901

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	12h 10m
Direct flights	None

The fastest flight from Helena to London takes 12h 10m

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

Search flight deals

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 12h 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.

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

Milton Keynes

Luton

Gatwick

Maidstone

Slough

Southend-on-Sea

Canterbury

Ipswich

Ilford

Guildford

Chelmsford

Hayes

Wembley

Dover

Folkestone

Colchester

Worthing

Bedford

Ramsgate

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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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 £478

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 7/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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

Find the cheapest flights from Helena to London

Cheap return flights

Cheap one-way flights

United Airlines flights from Helena to London

Our best United Airlines deals on Helena to London flight tickets

Delta flights from Helena to London

Our best Delta 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

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

Fastest flight time

Direct flights

Travelling to a place near London?

Why use momondo?

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

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

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

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

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