£511 Cheap Flights from London (LHR) to Helena (HLN)

View £511 flight on Wed, 30 Sept 2026Opens in a new window

Popular airlines from Heathrow Airport (LHR) to Helena, MT (HLN-Helena Regional)

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Cheap Flights from London (LHR) to Helena (HLN)

Prices were available within the past 7 days and start at £511 for one-way flights and £731 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Wed, 30 Sept - Wed, 7 Oct
LHR
London
HLN
Helena
£731 Return, found 1 day ago
£731
Return
found 1 day ago
Select Alaska Airlines flight, departing Wed, 30 Sept from London to Helena, returning Wed, 7 Oct, priced at £731 found 1 day ago
Alaska Airlines
Wed, 30 Sept - Wed, 7 Oct
LHR
London
HLN
Helena
£754 Return, found 1 day ago
£754
Return
found 1 day ago
Select Alaska Airlines flight, departing Wed, 30 Sept from London to Helena, returning Wed, 7 Oct, priced at £754 found 1 day ago
Alaska Airlines
Wed, 30 Sept - Wed, 7 Oct
LHR
London
HLN
Helena
£758 Return, found 1 day ago
£758
Return
found 1 day ago
Select Alaska Airlines flight, departing Wed, 30 Sept from London to Helena, returning Wed, 7 Oct, priced at £758 found 1 day ago
Virgin Atlantic
Wed, 30 Sept - Wed, 7 Oct
LHR
London
HLN
Helena
£794 Return, found 1 day ago
£794
Return
found 1 day ago
Select Virgin Atlantic flight, departing Wed, 30 Sept from London to Helena, returning Wed, 7 Oct, priced at £794 found 1 day ago
KLM
Wed, 30 Sept - Wed, 7 Oct
LHR
London
HLN
Helena
£794 Return, found 1 day ago
£794
Return
found 1 day ago
Select KLM flight, departing Wed, 30 Sept from London to Helena, returning Wed, 7 Oct, priced at £794 found 1 day ago
Alaska Airlines
Wed, 30 Sept - Wed, 7 Oct
LHR
London
HLN
Helena
£795 Return, found 1 day ago
£795
Return
found 1 day ago
Select Alaska Airlines flight, departing Wed, 30 Sept from London to Helena, returning Wed, 7 Oct, priced at £795 found 1 day ago
Air France
Wed, 30 Sept - Wed, 7 Oct
LHR
London
HLN
Helena
£798 Return, found 1 day ago
£798
Return
found 1 day ago
Select Air France flight, departing Wed, 30 Sept from London to Helena, returning Wed, 7 Oct, priced at £798 found 1 day ago
KLM
Wed, 30 Sept - Wed, 7 Oct
LHR
London
HLN
Helena
£802 Return, found 1 day ago
£802
Return
found 1 day ago
Select KLM flight, departing Wed, 30 Sept from London to Helena, returning Wed, 7 Oct, priced at £802 found 1 day ago
Icelandair
Wed, 30 Sept - Wed, 7 Oct
LHR
London
HLN
Helena
£803 Return, found 1 day ago
£803
Return
found 1 day ago
Select Icelandair flight, departing Wed, 30 Sept from London to Helena, returning Wed, 7 Oct, priced at £803 found 1 day ago
Virgin Atlantic
Wed, 30 Sept - Wed, 7 Oct
LHR
London
HLN
Helena
£804 Return, found 1 day ago
£804
Return
found 1 day ago
Select Virgin Atlantic flight, departing Wed, 30 Sept from London to Helena, returning Wed, 7 Oct, priced at £804 found 1 day ago

Frequently asked questions

How much does a flight from London (LHR-Heathrow) to Helena, MT (HLN-Helena Regional) cost?
One-way flights typically cost between £986 and £3,240 and return flights often range between £986 and £3,240. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Anaa (AAA) to Toronto, ON (YYZ-Pearson Intl.) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
How do I find cheap flights from London (LHR-Heathrow) to Helena, MT (HLN-Helena Regional)?
To find a cheap flight from London (LHR-Heathrow) to Helena, MT (HLN-Helena Regional), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from London (LHR-Heathrow) to Helena, MT (HLN-Helena Regional)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from London (LHR-Heathrow) to Helena, MT (HLN-Helena Regional)?
There are approximately 34 connecting flights per day from London (LHR-Heathrow) (LHR) to Helena, MT (HLN-Helena Regional) (HLN). Some common connection points include John F. Kennedy Intl. (JFK), Los Angeles Intl. (LAX), and (DUB).
What is the earliest flight from London (LHR-Heathrow) to Helena, MT (HLN-Helena Regional)?
The earliest flight from London Heathrow (LHR) to Helena, MT (HLN) typically departs at approximately 6:15 AM local time. This service is operated by Air France and Delta. This is a seasonal service active in April and June. An early departure like this can help maximise your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from London (LHR-Heathrow) to Helena, MT (HLN-Helena Regional)?
You'll typically find the most flights from London Heathrow (LHR) to Helena, MT (HLN) on a Monday, with around 62 flights available. This gives you a good selection of options for your journey. Major airlines on this route include Virgin Atlantic, Delta Air Lines, and United Airlines.
What are the most popular departure times for flights from London (LHR-Heathrow) to Helena, MT (HLN-Helena Regional)?
The most popular departure times for flights from London Heathrow (LHR) to Helena Regional (HLN) are in the morning, from 9am to 12pm. Approximately 41% of passengers prefer this time window. Many major carriers, including Delta Air Lines, Virgin Atlantic and United Airlines, offer flights during this window. These times work well because you can get an early start to your journey and arrive in Helena, MT with plenty of time to settle in.
How long does it take to fly from London (LHR-Heathrow) to Helena, MT (HLN-Helena Regional)?
Flights from LHR to HLN with one stop typically take around 13 hours 30 minutes, covering approximately 4,540 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from London (LHR-Heathrow) to Helena, MT (HLN-Helena Regional)?
Select the "Business class" and "First class" filters when looking for LHR to HLN flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a London (LHR-Heathrow) to Helena, MT (HLN-Helena Regional) flight with Expedia?
It's easy to earn miles on a London (LHR-Heathrow) to Helena, MT (HLN-Helena Regional) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Helena from Heathrow (LHR)?
If you're planning to travel to Helena from Heathrow (LHR), you can fly into Helena Regional (HLN) Some flights may connect through major hubs like John F. Kennedy Intl. (JFK), Los Angeles Intl. (LAX), Pearson Intl. (YYZ) before reaching Helena. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from London (LHR-Heathrow) to Helena, MT (HLN-Helena Regional) at the last minute?
Typically, booking a last minute flight from London (LHR-Heathrow) to Helena, MT (HLN-Helena Regional) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a London (LHR-Heathrow) to Helena, MT (HLN-Helena Regional) flight and hotel package?
Securing a London (LHR-Heathrow) to Helena, MT (HLN-Helena Regional) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from London (LHR-Heathrow) to Helena, MT (HLN-Helena Regional)?
If you booked your London (LHR-Heathrow) to Helena, MT (HLN-Helena Regional) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Heathrow
Destination airport
Helena Regional
Airlines serving
Alaska Airlines, Delta, KLM, United, Virgin Atlantic
Return price
£730
Distance
7263 km

Book with confidence

Compare flights from London to Helena easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from London to Helena. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Helena Regional in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Heathrow to Helena Regional.  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Heathrow (LHR) to Helena Regional (HLN)

The easiest way to view the best deals on flights from London to Helena today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Heathrow to Helena Regional start at just £731 and range up to £804.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near London and Helena
  • booking your flight during September, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your London to Helena flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Heathrow to Helena Regional for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Compare flights from London to Helena easily and book with confidence

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*Available to Expedia members.