Cheap flights from Helena to London from £497

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 26/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
Voted winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

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

Trusted and free

Trusted and free

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

Price Alerts

Price Alerts

Not ready to book? to track prices.

Find the cheapest flights from Helena to London

Cheap return flights

Multiple Airlines Logo
13:00 - 10:30HLN-LHR
15h 30m2 stops
Multiple Airlines Logo
06:20 - 22:37LHR-HLN
23h 17m2 stops
£497Multiple Airlines
Find Deal
Sun, 26 Oct - Mon, 10 Nov
United Airlines Logo
06:40 - 09:40HLN-LHR
21h 00m1 stop
United Airlines Logo
16:40 - 21:22LHR-HLN
35h 42m2 stops
£518United Airlines
Find Deal
Sun, 26 Oct - Mon, 10 Nov
United Airlines Logo
14:22 - 09:40HLN-LHR
13h 18m1 stop
United Airlines Logo
11:35 - 21:22LHR-HLN
16h 47m1 stop
£540United Airlines
Find Deal
Sun, 26 Oct - Mon, 10 Nov
United Airlines Logo
17:18 - 09:40HLN-LHR
33h 22m1 stop
United Airlines Logo
16:40 - 16:40LHR-HLN
31h 00m2 stops
£570United Airlines
Find Deal
Fri, 10 Oct - Sat, 18 Oct
United Airlines Logo
06:30 - 11:25HLN-LHR
21h 55m2 stops
United Airlines Logo
16:40 - 16:40LHR-HLN
31h 00m2 stops
£571United Airlines
Find Deal
Fri, 10 Oct - Sat, 18 Oct
Virgin Atlantic Logo
13:00 - 13:05HLN-LHR
18h 05m2 stops
Virgin Atlantic Logo
08:55 - 22:16LHR-HLN
20h 21m2 stops
£599Virgin Atlantic
Find Deal
Sat, 1 Nov - Sat, 8 Nov
United Airlines Logo
06:10 - 09:40HLN-LHR
20h 30m1 stop
United Airlines Logo
18:00 - 21:31LHR-HLN
34h 31m2 stops
£619United Airlines
Find Deal
Wed, 24 Dec - Tue, 30 Dec
Delta Logo
05:35 - 09:00HLN-LHR
20h 25m3 stops
Delta Logo
06:20 - 22:50LHR-HLN
23h 30m2 stops
£708Delta
Find Deal
Wed, 24 Dec - Mon, 29 Dec
Multiple Airlines Logo
06:40 - 08:35HLN-LCY
19h 55m3 stops
Multiple Airlines Logo
19:10 - 21:22LCY-HLN
33h 12m3 stops
£711Multiple Airlines
Find Deal
Sun, 26 Oct - Mon, 10 Nov
Delta Logo
13:06 - 10:00HLN-LHR
13h 54m1 stop
Delta Logo
06:20 - 22:50LHR-HLN
23h 30m2 stops
£739Delta
Find Deal
Fri, 26 Dec - Mon, 29 Dec

United Airlines flights from Helena to London

Our best United Airlines deals on Helena to London flight tickets
United Airlines
26 Oct
HLN06:40Helena
21h 00m
1 stop
LHR09:40London Heathrow
10 Nov
LHR16:40London Heathrow
35h 42m
2 stops
HLN21:22Helena
United Airlines
26 Oct
HLN14:22Helena
13h 18m
1 stop
LHR09:40London Heathrow
10 Nov
LHR11:35London Heathrow
16h 47m
1 stop
HLN21:22Helena
United Airlines
10 Oct
HLN17:18Helena
33h 22m
1 stop
LHR09:40London Heathrow
18 Oct
LHR16:40London Heathrow
31h 00m
2 stops
HLN16:40Helena

KLM flights from Helena to London

Our best KLM deals on Helena to London flight tickets
KLM
23 Sept
HLN13:00Helena
13h 50m
1 stop
LHR09:50London Heathrow
1 Oct
LHR11:00London Heathrow
18h 14m
1 stop
HLN22:14Helena
KLM
23 Sept
HLN13:00Helena
18h 15m
2 stops
LHR14:15London Heathrow
1 Oct
LHR11:00London Heathrow
18h 14m
1 stop
HLN22:14Helena

momondo Fare Finder

 
Customise your flight search to find flights from Helena to London that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 279,928 searches. Data last updated 18 September 2025.
Use the filters below to find and compare flights from Helena to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

HelenaLondon

HLN - LHR

HLNLHR

Helena

Sun 26/10

13:00-10:30

2 stops15h 30m

London Heathrow

Mon 10/11

06:20-22:37

2 stops23h 17m

£497

HelenaLondon

HLN - LHR

HLNLHR

Helena

Sun 26/10

06:40-09:40

1 stop21h 00m

London Heathrow

Mon 10/11

16:40-21:22

2 stops35h 42m

£518

HelenaLondon

HLN - LHR

HLNLHR

Helena

Sun 26/10

14:22-09:40

1 stop13h 18m

London Heathrow

Mon 10/11

11:35-21:22

1 stop16h 47m

£540

HelenaLondon

HLN - LHR

HLNLHR

Helena

Fri 10/10

17:18-09:40

1 stop33h 22m

London Heathrow

Sat 18/10

16:40-16:40

2 stops31h 00m

£570

HelenaLondon

HLN - LHR

HLNLHR

Helena

Fri 10/10

06:30-11:25

2 stops21h 55m

London Heathrow

Sat 18/10

16:40-16:40

2 stops31h 00m

£571

HelenaLondon

HLN - LHR

HLNLHR

Helena

Sat 1/11

13:00-13:05

2 stops18h 05m

London Heathrow

Sat 8/11

08:55-22:16

2 stops20h 21m

£599

HelenaLondon

HLN - LHR

HLNLHR

Helena

Wed 24/12

06:10-09:40

1 stop20h 30m

London Heathrow

Tue 30/12

18:00-21:31

2 stops34h 31m

£619

HelenaLondon

HLN - LHR

HLNLHR

Helena

Wed 24/12

05:35-09:00

3 stops20h 25m

London Heathrow

Mon 29/12

06:20-22:50

2 stops23h 30m

£708

HelenaLondon

HLN - LCY

HLNLCY

Helena

Sun 26/10

06:40-08:35

3 stops19h 55m

London City

Mon 10/11

19:10-21:22

3 stops33h 12m

£711

HelenaLondon

HLN - LHR

HLNLHR

Helena

Fri 26/12

13:06-10:00

1 stop13h 54m

London Heathrow

Mon 29/12

06:20-22:50

2 stops23h 30m

£739

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

Direct flights

None
There are no direct flights from Helena to London. There are no popular flight routes 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 12h 14m.

  • 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.

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Eastbourne
Luton
Milton Keynes
Maidstone
Gatwick
Slough
Canterbury
Southend-on-Sea
Ipswich
Ilford
Guildford
Colchester
Worthing
Chelmsford
Dover
Hayes
Dartford
Winchester
Hounslow
Stansted

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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 18/10
Sat 25/10

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