HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
London City

$503+ Cheap flights from Helena (HLN) to London City (LCY)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/14. Fares are subject to change and may not be available on all flights or dates of travel.
HLN — LCY
May 26 — Jun 21
Mon 5/26
Mon 6/2
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Helena to London City with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Helena to London City

Discover tips and strategies to find the most affordable flight options for your journey from Helena (HLN) to London City (LCY). 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 May 21, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$947
(United Airlines)

One-way from

$503
(Delta)
Provider with most accurate pricing for Helena-London City flight deals.
Search Deals
Provider most trusted by Cheapflights users for Helena-London City flights.
Search Deals
From Helena to London City
Search Deals
One-way flight from Helena to London City
Search Deals

Find flight deals from Helena to London City

Cheapest flights from Helena to London City
Explore the most affordable flight options available from Helena to London City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 21, 2025.

This United Airlines deal was found by Cheapflights users on 5/21. 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.
Mon 8/256:45 amHLN - LCY
3 stops22h 45mMultiple Airlines
Tue 9/27:10 pmLCY - HLN
2 stops33h 01mMultiple Airlines
Deal found 5/21$947
This Delta deal was found by Cheapflights users on 5/21. 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.
Wed 10/812:50 pmHLN - LCY
2 stops20h 50mDelta
Fri 10/177:45 amLCY - HLN
2 stops21h 52mDelta
Deal found 5/21$2,808

Cheapflights Fare Finder

Customize your flight search to find flights from Helena to London City 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 May 21, 2025.
Use the filters below to find and compare flights from Helena to London City Airport that are best for you.

Fly from

Helena

Fly to

London City

Route

Depart

Return

Price

HelenaLondon

HLN - LCY

HLNLCY

Helena

Mon 8/25

6:45 am-12:30 pm

3 stops22h 45m

London City

Tue 9/2

7:10 pm-9:11 pm

2 stops33h 01m

$947

HelenaLondon

HLN - LCY

HLNLCY

Helena

Wed 10/8

12:50 pm-4:40 pm

2 stops20h 50m

London City

Fri 10/17

7:45 am-10:37 pm

2 stops21h 52m

$2,808

HelenaLondon

HLN - LCY

HLNLCY

Helena

Sun 9/14

12:50 pm-4:40 pm

2 stops20h 50m

$503

HelenaLondon

HLN - LCY

HLNLCY

Helena

Tue 9/16

6:45 am-12:30 pm

3 stops22h 45m

$539

HelenaLondon

HLN - LCY

HLNLCY

Helena

Sat 9/13

4:02 pm-12:30 pm

3 stops37h 28m

$586

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/21

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

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

Rainfall in London City by month

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

In terms of precipitation, rainfall in London City Airport 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 City Airport when rainfall is around 1.6 in.

Temperature in London City by month

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

If weather is an important factor for your trip to London City Airport, 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 City

Get insights into the airlines that provide service to London City. 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 City. Reviews last updated May 21, 2025.
Delta
8.0
Very good
7,951 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,951 reviews
Delta
8.0
Very good
7,951 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,745 reviews
Delta
8.0
Very good
7,951 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

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

    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 City. 0 airlines have flights from Helena to London City on a regular basis. Booking flights from Helena to London City should not be difficult; the airport handles an average of 0 outbound flights to London City per day.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Helena to London City 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 City Airport?

    Currently, April is the cheapest month in which you can book a flight from Helena to London City Airport (average of $686). Flying from Helena to London City Airport in July is currently the most expensive (average of $1,046). 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
Canterbury
Harrow
Wembley
Dover
Gatwick
Orpington
Watford
Croydon
Borehamwood
Folkestone
Aylesbury
Sutton
Chelmsford
Brentwood
Chichester
Arundel

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.