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$818+ Cheap flights from Helena (HLN) to London (LON)

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 5/8. Fares are subject to change and may not be available on all flights or dates of travel.
HLN — LON
Apr 22 — Apr 291
Tue 4/22
Tue 4/29
1 adult, Economy
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Cheap flight deals from Helena to London

Discover tips and strategies to find the most affordable flight options for your journey from Helena (HLN) to London (LON). 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 April 17, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
2 stars

Round-trip from

$818
(Delta)
Provider with most accurate pricing for Helena-London (LON) flight deals.
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Provider most trusted by Cheapflights users for Helena-London (LON) flights.
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From Helena to London (LON)
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Find flight deals from Helena to London

Cheapest flights from Helena to London
Explore the most affordable flight options available from Helena to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 17, 2025.

This Delta deal was found by Cheapflights users on 4/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/81:01 pmHLN - LHR
2 stops18h 14mDelta
Wed 5/146:30 amLHR - HLN
2 stops22h 46mDelta
Deal found 4/17$818
This United Airlines deal was found by Cheapflights users on 4/17. 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.
Thu 5/82:16 pmHLN - LHR
1 stop15h 04mUnited Airlines
Wed 5/147:30 amLHR - HLN
2 stops20h 45mUnited Airlines
Deal found 4/17$819
This KLM deal was found by Cheapflights users on 4/17. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/171:03 pmHLN - LHR
2 stops18h 12mKLM
Fri 10/2411:45 amLHR - HLN
2 stops17h 52mKLM
Deal found 4/17$827
This Air France deal was found by Cheapflights users on 4/17. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/191:03 pmHLN - LHR
2 stops18h 12mAir France
Sun 10/2612:10 pmLHR - HLN
2 stops16h 27mAir France
Deal found 4/17$879
This KLM deal was found by Cheapflights users on 4/17. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/171:03 pmHLN - LHR
2 stops18h 12mMultiple Airlines
Sun 10/2612:10 pmLHR - HLN
2 stops16h 27mMultiple Airlines
Deal found 4/17$929
This KLM deal was found by Cheapflights users on 4/17. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/171:03 pmHLN - LCY
2 stops15h 37mKLM
Fri 10/2410:00 amLCY - HLN
2 stops19h 37mKLM
Deal found 4/17$1,374
This United Airlines deal was found by Cheapflights users on 4/17. 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 10/186:45 amHLN - LCY
3 stops24h 00mMultiple Airlines
Sat 10/2512:15 pmLCY - HLN
3 stops39h 44mMultiple Airlines
Deal found 4/17$1,917

Cheapflights Fare Finder

Customize your flight search to find flights from Helena to London 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 April 17, 2025.
Use the filters below to find and compare flights from Helena to London that are best for you.

Fly from

Helena

Fly to

London

Route

Depart

Return

Price

HelenaLondon

HLN - LHR

HLNLHR

Helena

Thu 5/8

1:01 pm-2:15 pm

2 stops18h 14m

London Heathrow

Wed 5/14

6:30 am-10:16 pm

2 stops22h 46m

$818

HelenaLondon

HLN - LHR

HLNLHR

Helena

Thu 5/8

2:16 pm-12:20 pm

1 stop15h 04m

London Heathrow

Wed 5/14

7:30 am-9:15 pm

2 stops20h 45m

$819

HelenaLondon

HLN - LHR

HLNLHR

Helena

Fri 10/10

1:03 pm-2:15 pm

2 stops18h 12m

London Heathrow

Sat 10/18

11:45 am-10:37 pm

2 stops17h 52m

$891

HelenaLondon

HLN - LCY

HLNLCY

Helena

Thu 5/8

1:01 pm-4:40 pm

2 stops20h 39m

London City

Wed 5/14

10:00 am-10:16 pm

2 stops19h 16m

$11,694

HelenaLondon

HLN - LHR

HLNLHR

Helena

Wed 4/23

7:29 pm-8:20 pm

2 stops41h 51m

$2,072

HelenaLondon

HLN - LHR

HLNLHR

Helena

Sat 4/26

6:45 am-6:55 am

2 stops17h 10m

$7,353

HelenaLondon

HLN - LCY

HLNLCY

Helena

Wed 4/23

1:18 pm-4:40 pm

2 stops20h 22m

$9,905

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/17

  • Most accurate provider: When it comes to deals on Helena-London flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Helena-London flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Helena-London flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Helena-London flights, Cheapflights users trust FlightHub the most. FlightHub 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 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 London

Have a flexible travel schedule? Discover the best time to fly to London 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

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

Currently, November is the cheapest month in which you can book a flight from Helena to London (average of $661). Flying from Helena to London in June is currently the most expensive (average of $1,110). 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.

Rainfall in London by month

Plan your trip to London by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in London ranges from 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit London when rainfall is around 1.6 in.

Temperature in London by month

Plan your trip to London by taking into account the average temperature totals by month.

If weather is an important factor for your trip to London, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to London. Reviews last updated April 17, 2025.
Read through reviews of airlines operating flights from Helena to London, such as Delta, KLM and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,917 reviews

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,917 reviews
Delta
8.0
Very good
7,917 reviews

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,329 reviews
Delta
8.0
Very good
7,917 reviews

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,667 reviews
Delta
8.0
Very good
7,917 reviews

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Helena to London. 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?

    Helena (HLN), located 2.7 mi from the city center, is the airport you fly out of when you book flights from Helena to London. 1 airline have flights from Helena to London on a regular basis. Booking flights from Helena to London should not be difficult; the airport handles an average of 0 outbound flights to London per day.

  • What are the cheapest airlines flying from Helena to London round-trip?

    Currently priced at $818, Delta will fly you from Helena to London and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and KLM - these airlines can fly you to your destination from $819 and $891, respectively.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Helena to London 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?

    Currently, November is the cheapest month in which you can book a flight from Helena to London (average of $661). Flying from Helena to London in June is currently the most expensive (average of $1,110). 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 Helena?

Book flights to Helena if you plan to visit one of these locations
Hayes
Hounslow
Thornton Heath
Luton
Horley
Wembley
Canterbury
Harrow
Dover
Gatwick
Orpington
Watford
Croydon
Borehamwood
Folkestone
Ilford
Aylesbury
Milton Keynes
Chelmsford
Sutton

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Helena to London

Discover the top airline that operate flights from Helena to London. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$655Average$850FlexibilityNo cancel feeOn-time69%

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