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$628+ Cheap flights from Helena (HLN) to Heathrow (LHR)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/24. Fares are subject to change and may not be available on all flights or dates of travel.
HLN — LHR
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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Cheap flight deals from Helena to Heathrow

Best flights from Helena to Heathrow
Discover carefully curated flight deals from Helena to Heathrow that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 12, 2025.

This United Airlines deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/246:15 amHLN - LHR
1 stop20h 25mUnited Airlines
Sat 1/316:35 amLHR - HLN
2 stops38h 06mUnited Airlines
Deal found 12/10$628
This United Airlines deal was found by Cheapflights users on 12/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/232:27 pmHLN - LHR
1 stop12h 13mUnited Airlines
Tue 1/276:35 amLHR - HLN
2 stops38h 06mUnited Airlines
Deal found 12/9$628
This United Airlines deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/222:30 pmHLN - LHR
1 stop12h 10mUnited Airlines
Mon 4/278:30 amLHR - HLN
2 stops19h 29mUnited Airlines
Deal found 12/10$874

Find flight deals from Helena to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Helena (HLN) to Heathrow (LHR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 12, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$628
(United Airlines)
Provider with most accurate pricing for Helena-London Heathrow flight deals.
Search Deals
Provider most trusted by Cheapflights users for Helena-London Heathrow flights.
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From Helena to London Heathrow
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Helena to Heathrow 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, Cheapflights users made 2,558,603 searches. Data last updated December 12, 2025.
Use the filters below to find and compare flights from Helena to London Heathrow Airport that are best for you.

Fly from

Helena

Fly to

Heathrow

Route

Depart

Return

Price

HelenaLondon

HLN - LHR

HLNLHR

Helena

Sat 1/24

6:15 am-9:40 am

1 stop20h 25m

London Heathrow

Sat 1/31

6:35 am-1:41 pm

2 stops38h 06m

$628

HelenaLondon

HLN - LHR

HLNLHR

Helena

Fri 1/23

2:27 pm-9:40 am

1 stop12h 13m

London Heathrow

Tue 1/27

6:35 am-1:41 pm

2 stops38h 06m

$628

HelenaLondon

HLN - LHR

HLNLHR

Helena

Wed 4/22

2:30 pm-9:40 am

1 stop12h 10m

London Heathrow

Mon 4/27

8:30 am-8:59 pm

2 stops19h 29m

$874

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

Compare providers for flights from Helena to Heathrow

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Helena to Heathrow in December.
ProviderPrice AccuracyTrust Score*
AranGrantPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Helena-London Heathrow Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Helena-London Heathrow Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Helena-London Heathrow Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Helena-London Heathrow Airport flights, Cheapflights users trust AranGrant the most. AranGrant has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Helena-London Heathrow Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Helena to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Helena with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Helena to London Heathrow Airport

What is the cheapest month to book a flight from Helena to London Heathrow Airport?

Currently, January is the cheapest month in which you can book a flight from Helena to London Heathrow Airport (average of $604). Flying from Helena to London Heathrow Airport in June is currently the most expensive (average of $1,155). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Helena to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Helena to London Heathrow?

    Helena (HLN) is the airport you will fly out of if you book a flight from Helena to London Heathrow. You should not have trouble finding flights to London Heathrow from Helena; the airport handles an average of 0 outbound flights to London Heathrow per day. You should also have plenty of airline options to choose from since 0 airlines have flights from the Helena airport to London Heathrow. It is only a 2.7 mi journey to Helena (HLN) from Helena’s city center.

  • How long is the flight from Helena to London Heathrow Airport?

    There are many flights that can get you from Helena to London Heathrow Airport in 20h 25m. Fly via United Airlines to get the fastest option. There are 4537 mi between Helena and London Heathrow Airport.

  • Can I find deals for flights from Helena to Heathrow that include hotel bookings?

    Yes. In addition to deals on Helena to Heathrow flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Helena to Heathrow?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Helena to Heathrow.

  • Can I find deals for business class flights from Helena to Heathrow?

    Yes. Cheapflights offers flight deals from Helena to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Helena to London Heathrow Airport?

    Currently, January is the cheapest month in which you can book a flight from Helena to London Heathrow Airport (average of $604). Flying from Helena to London Heathrow Airport in June is currently the most expensive (average of $1,155). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Ilford
Hounslow
Southend-on-Sea
Harrow
Eastleigh
Dartford
Dover
Winchester
Croydon
Orpington
Northampton
Watford
Hayes
Borehamwood
Broadway
Aylesbury
Chipping Norton
Horley
Kingston upon Thames
Wembley

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