HLN - LHR

$334 Find Cheap Flights from Helena to London - Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$761
Typical prices: $777-$1,372
Alaska Airlines
Fri 3/2Sun 3/4
HLN - LHR • 1 stop
Cheapest one-way
$334
Typical prices: $409-$504
United Airlines
Sat 1/6
HLN - LHR • 1 stop
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)
Insights
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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

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
$761Alaska 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
10:45 am - 10:41 pmLHR  London Heathrow-HLN Helena
18h 56m1 stop Salt Lake City
$769Delta
Wed, Jan 6 - Wed, Jan 13
Delta Logo
5:45 am - 8:05 amHLN  Helena-LHR London Heathrow
19h 20m2 stops Salt Lake City New York John F Kennedy Intl
Delta Logo
9:50 am - 10:41 pmLHR  London Heathrow-HLN Helena
19h 51m2 stops Minneapolis St Paul Salt Lake City
$770Delta
Mon, Sep 28 - Mon, Oct 12
KLM Logo
12:57 pm - 10:00 amHLN  Helena-LHR London Heathrow
14h 03m1 stop Salt Lake City
KLM Logo
6:30 am - 10:24 pmLHR  London Heathrow-HLN Helena
22h 54m2 stops Amsterdam Schiphol Salt Lake City
$799KLM
Mon, Sep 28 - Mon, Oct 12
KLM Logo
7:15 am - 7:10 amHLN  Helena-LHR London Heathrow
16h 55m2 stops Salt Lake City Detroit Metropolitan Wayne County
KLM Logo
6:30 am - 10:24 pmLHR  London Heathrow-HLN Helena
22h 54m2 stops Amsterdam Schiphol Salt Lake City
$803KLM
Sun, Feb 14 - Sun, Feb 21
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
$812Alaska Airlines
Sun, Feb 14 - Sun, Feb 21
Delta Logo
5:45 am - 11:40 amHLN  Helena-LHR London Heathrow
22h 55m2 stops Salt Lake City Atlanta Hartsfield-Jackson
Delta Logo
8:10 pm - 12:24 pmLHR  London Heathrow-HLN Helena
23h 14m2 stops New York John F Kennedy Intl Salt Lake City
$820Delta
Wed, Jan 6 - Wed, Jan 13
Alaska Airlines Logo
5:00 pm - 12:20 pmHLN  Helena-LHR London Heathrow
12h 20m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
2:45 pm - 4:23 pmLHR  London Heathrow-HLN Helena
32h 38m1 stop Seattle/Tacoma Intl
$826Alaska Airlines
Tue, Mar 2 - Thu, Mar 4
United Airlines Logo
7:00 am - 9:40 amHLN  Helena-LHR London Heathrow
19h 40m1 stop Denver Intl
United Airlines Logo
7:30 am - 8:59 pmLHR  London Heathrow-HLN Helena
20h 29m2 stops Frankfurt am Main Denver Intl
$837United Airlines
Tue, Mar 2 - Thu, Mar 4
United Airlines Logo
7:00 am - 9:40 amHLN  Helena-LHR London Heathrow
19h 40m1 stop Denver Intl
United Airlines Logo
9:30 am - 8:59 pmLHR  London Heathrow-HLN Helena
42h 29m2 stops Frankfurt am Main Denver Intl
$838United Airlines
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.

How much is a round-trip flight from Helena to London Heathrow Airport?

Round-trip flights from Helena to London Heathrow Airport start at $761. Prices are below average for this route right now, with typical round-trip fares ranging from $777 to $1,372. The lowest price found in the past 5 days was $761 on Alaska Airlines.

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

$334
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.

  • 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).

  • 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.

  • 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.

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

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

  • 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.

  • 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 $761 to $5,180. That means the highest observed fare was about 7x 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 lower than usual. Average one-way flight prices are about $334, which is 27% below the typical average for this route.

  • 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 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

  • 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.

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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