HLN - LHR

$354 Find Cheap Flights from Helena to London - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$747
Typical prices: $777-$1,372
KLM, Air France
Sun 11/4Sun 11/11
HLN - LHR • 1 stop
Cheapest one-way
$354
Typical prices: $409-$504
United Airlines
Mon 2/19
HLN - LHR • 2 stops
When to travel
March
Cheapest • 38% price drop
February
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Salt Lake City (SLC)
Cheapest • Avg $895 (round-trip)
Denver Intl (DEN)
Shortest trip • 13h 04m (one-way)
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Flight Deals

Cheap Flights from Helena to Heathrow (HLN-LHR)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Helena to Heathrow

Wed, Nov 4 - Wed, Nov 11
Multiple Airlines Logo
7:15 am - 10:00 amHLN  Helena-LHR London Heathrow
19h 45m1 stop Salt Lake City
Multiple Airlines Logo
6:20 am - 10:26 pmLHR  London Heathrow-HLN Helena
23h 06m2 stops Paris Charles de Gaulle Salt Lake City
$747Multiple Airlines
Wed, Nov 4 - Wed, Nov 11
Delta Logo
7:15 am - 7:05 amHLN  Helena-LHR London Heathrow
16h 50m2 stops Salt Lake City Minneapolis St Paul
Delta Logo
6:20 am - 10:26 pmLHR  London Heathrow-HLN Helena
23h 06m2 stops Paris Charles de Gaulle Salt Lake City
$751Delta
Wed, Nov 4 - Wed, Nov 11
Alaska Airlines Logo
4:41 pm - 12:20 pmHLN  Helena-LHR London Heathrow
12h 39m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
2:45 pm - 4:04 pmLHR  London Heathrow-HLN Helena
32h 19m1 stop Seattle/Tacoma Intl
$759Alaska Airlines
Tue, Mar 2 - Thu, Mar 4
Alaska Airlines Logo
4:08 pm - 12:20 pmHLN  Helena-LHR London Heathrow
13h 12m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
2:45 pm - 3:31 pmLHR  London Heathrow-HLN Helena
31h 46m1 stop Seattle/Tacoma Intl
$764Alaska Airlines
Tue, Mar 2 - Thu, Mar 4
Alaska Airlines Logo
4:08 pm - 12:20 pmHLN  Helena-LHR London Heathrow
13h 12m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
2:45 pm - 3:31 pmLHR  London Heathrow-HLN Helena
31h 46m1 stop Seattle/Tacoma Intl
$765Alaska Airlines
Wed, Jan 6 - Wed, Jan 13
Delta Logo
5:45 am - 7:05 amHLN  Helena-LHR London Heathrow
18h 20m2 stops Salt Lake City Minneapolis St Paul
Delta Logo
11:20 am - 10:41 pmLHR  London Heathrow-HLN Helena
18h 21m2 stops Detroit Metropolitan Wayne County Salt Lake City
$772Delta
Fri, Oct 23 - Mon, Nov 2
Delta Logo
1:08 pm - 10:00 amHLN  Helena-LHR London Heathrow
13h 52m1 stop Salt Lake City
Delta Logo
11:45 am - 12:28 pmLHR  London Heathrow-HLN Helena
55h 43m2 stops Amsterdam Schiphol Salt Lake City
$802Delta
Thu, Oct 22 - Mon, Nov 2
Delta Logo
7:15 am - 3:35 pmHLN  Helena-LHR London Heathrow
25h 20m2 stops Salt Lake City Seattle/Tacoma Intl
Delta Logo
11:45 am - 12:28 pmLHR  London Heathrow-HLN Helena
55h 43m2 stops Amsterdam Schiphol Salt Lake City
$807Delta
Thu, Nov 5 - Thu, Nov 12
Alaska Airlines Logo
4:41 pm - 12:20 pmHLN  Helena-LHR London Heathrow
12h 39m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
2:45 pm - 4:04 pmLHR  London Heathrow-HLN Helena
32h 19m1 stop Seattle/Tacoma Intl
$809Alaska Airlines
Thu, Nov 5 - Thu, Nov 12
Air France Logo
1:08 pm - 1:45 pmHLN  Helena-LHR London Heathrow
17h 37m2 stops Salt Lake City Paris Charles de Gaulle
Air France Logo
6:20 am - 10:26 pmLHR  London Heathrow-HLN Helena
23h 06m2 stops Paris Charles de Gaulle Salt Lake City
$816Air France
Booking Insights

Price, demand and travel trends for Helena to London Heathrow Airport flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from Helena to London Heathrow Airport with more confidence.

What's the cheapest day of the week to fly from Helena to London Heathrow Airport?

Monday is the cheapest day of the week to fly from Helena to London Heathrow Airport, it is 39% cheaper than the average day. Friday is the most expensive day with flight prices 42% higher than average. Based on deals found by KAYAK users in the last 12 months.

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Key details for Helena to London Heathrow Airport flights

Low season

June

Cheapest flight

$354
Most popular time to fly and prices are also 30% lower on average.
Flight from Helena to London Heathrow Airport

When to book flights from Helena to Heathrow

Are your dates flexible? Find out the best times to travel from Helena to Heathrow based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Helena to London Heathrow Airport flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • What cabin classes can I book on flights from Helena to London Heathrow Airport?

    Only Economy Class is available on flights from Helena to London Heathrow Airport.

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

    There are currently no nonstop flights available from Helena to London Heathrow Airport. Flights with 1 layover take between 13h 04m and 15h 49m in total, depending on the connection.

  • Do I need a passport to fly from Helena to London Heathrow Airport?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a Helena to London Heathrow Airport flight?

    Round-trip flights from Helena to London Heathrow Airport range from $777 to $1,372, with an average of $1,107 over the past 12 months. Anything below $777 counts as a good deal.

  • Have flight prices from Helena to London Heathrow Airport changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $747 to $6,718. That means the highest observed fare was about 9x higher than the lowest one.

  • How are flight prices from Helena to London Heathrow Airport looking right now?

    One-way fares from Helena to London Heathrow Airport are currently in line with typical prices for this route. Average one-way fares are about $465.

  • What car rental options are available at London Heathrow Airport (LHR)?

    London Heathrow Airport (LHR) hosts 5 major car rental companies, with daily rates starting from around $7 for economy cars. Top options include:
    • GREEN MOTION
    • DRIVALIA
    • Europcar
    • Alamo
    • Hertz

  • Which airports can I use when flying from Helena to London Heathrow Airport?

    Flights from Helena to London Heathrow Airport usually depart from Helena (HLN) and arrive at London Heathrow (LHR).

  • Which airports do connecting flights from Helena to London Heathrow Airport pass through?

    One-stop flights from Helena to London Heathrow Airport most commonly connect through:

    • Salt Lake City (SLC) - 38% of one-stop connections
    • Denver Intl (DEN) - 31% of one-stop connections
    • Seattle/Tacoma Intl (SEA) - 31% of one-stop connections

    Salt Lake City (SLC) handles the largest share of one-stop connections on this route.

  • Can I save money by using flexible dates for flights from Helena to London Heathrow Airport?

    Yes. Being flexible with your travel dates can save you up to 57% on the Helena to London Heathrow Airport route. Monday is the cheapest departure day at $684 round-trip on average, while Friday is the most expensive at $1,581, a difference of $897. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • How much time can I save by choosing a different layover airport from Helena to London Heathrow Airport?

    Flying via Denver Intl (DEN) gives the shortest average 1-stop total travel time at 13h 04m, compared with 13h 39m via Seattle/Tacoma Intl (SEA) and 15h 49m via Salt Lake City (SLC).

  • What is the time difference between Helena and London Heathrow Airport?

    London Heathrow Airport is 7 hours ahead of Helena (British Time vs Mountain Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in London Heathrow Airport?

    Some of the most popular sights in London Heathrow Airport are Hyde Park and Buckingham Palace. These are among the most viewed places in London Heathrow Airport on KAYAK.

Your guide to booking Helena to London Heathrow Airport flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates can be flexible, aim for a Monday departure instead of Friday. On this route, Monday flights average $684 - about $897 less than Friday (57% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Helena to London Heathrow Airport trip for March. Fares historically average $684 round-trip in that month - typically $794 less than the most expensive month, which is May (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to London Heathrow Airport.
    - Hilton London Heathrow Airport

More options for your flight from Helena to Heathrow

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