Cheap flights from London Heathrow Airport to Helena from £684
This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/4. Fares are subject to change and may not be available on all flights or dates of travel.
Cheap flight deals from Heathrow to Helena
One-way flights from Heathrow to HelenaSearch for one-way flight options from Heathrow to Helena. Find affordable one-way fares based on user searches. Data last updated 10 October 2026.
Search for one-way flight options from Heathrow to Helena. Find affordable one-way fares based on user searches. Data last updated 10 October 2026.
Find flight deals from Heathrow to Helena
Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Helena (HLN). 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 10 October 2026.
Cheapflights Fare Finder
Use the filters below to find and compare flights from London Heathrow Airport to Helena that are best for you.
Fly from
Fly to
Route
Depart
Return
LondonHelena
LHR London Heathrow - HLN Helena
LHRHLN
London Heathrow
Sat 3/4
18:15-12:24
2 stops25h 09m
Helena
Wed 31/12
00:00-08:00
Nonstop0h 00m
LondonHelena
LHR London Heathrow - HLN Helena
LHRHLN
London Heathrow
Sat 3/4
10:20-12:24
3 stops33h 04m
Helena
Wed 31/12
00:00-08:00
Nonstop0h 00m
Best time to book a flight from Heathrow to Helena
Have a flexible travel schedule? Discover the best time to fly to Helena from Heathrow with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from London Heathrow Airport to Helena
What’s the top stopover airport for flights from London Heathrow Airport to Helena?
Salt Lake City (SLC) – chosen by Cheapflights users on 50% of one-stop itineraries from London Heathrow Airport to Helena on Cheapflights.
What’s the cheapest stopover airport for flights from London Heathrow Airport to Helena?
Denver (DEN) is the most affordable one-stop option, with an average return flight price of £1,314.
What’s the fastest stopover option from London Heathrow Airport to Helena?
Flights via Denver (DEN) have the shortest average one-way travel time for one-stop routes: 15h 50m.
Which airport typically offers the quickest stopover for flights from London Heathrow Airport to Helena?
Flights via Denver (DEN) offer the fastest connection on this route, with an average stopover time of 2h 53m.
Related info for your journey
Find useful and relevant information for your journey from Heathrow to Helena. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Heathrow to Helena
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Complete your trip
Complete your trip to Helena by adding a car hire and/or hotel booking to your travel itinerary.
Direct flights to United States
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Heathrow and Helena flights
Browse other Heathrow and Helena flight options. Last updated on 10 October 2026.
Other flights from Heathrow
Browse through other flights departing from Heathrow. Flights are based on user searches made on Cheapflights and were last updated on 10 October 2026.
Popular flight searches
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How does Cheapflights help users find flights from Heathrow to Helena?
Deals for Heathrow to Helena flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.
Why should you use Cheapflights to find cheap flight tickets from Heathrow to Helena?
Cheapflights helps you find that perfect flight to Helena from Heathrow by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!
Can Cheapflights find flights from Heathrow to Helena with no change fees?
Yes, we can. To see specific flights from Heathrow to Helena with no change fees, users can toggle flexible booking options after using the search form above to find flights.
Can Cheapflights notify me if prices for flights from Heathrow to Helena become cheaper?
Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!