$649 Find Cheap Flights from Helena to the United Kingdom

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Helena to the United Kingdom departing on 4/7. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Book Cheap Helena to the United Kingdom Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Helena to the United Kingdom that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Helena to the United Kingdom

Tue, Apr 7 - Wed, Apr 15
United Airlines Logo
6:15 am - 12:20 pm
HLN
-
LHR
23h 05m
1 stop
United Airlines Logo
7:25 am - 9:33 pm
LHR
-
HLN
21h 08m
2 stops
$649United Airlines
Tue, Apr 7 - Tue, Apr 14
United Airlines Logo
6:15 am - 6:30 am
HLN
-
LHR
17h 15m
2 stops
United Airlines Logo
7:25 am - 9:33 pm
LHR
-
HLN
21h 08m
2 stops
$652United Airlines
Tue, Mar 17 - Tue, Mar 24
Multiple Airlines Logo
1:02 pm - 10:00 am
HLN
-
LHR
14h 58m
1 stop
Multiple Airlines Logo
8:00 pm - 10:30 pm
LHR
-
HLN
32h 30m
2 stops
$666Multiple Airlines
Wed, May 13 - Tue, May 19
Delta Logo
5:45 am - 5:35 pm
HLN
-
LHR
28h 50m
2 stops
Delta Logo
5:45 pm - 10:33 pm
LHR
-
HLN
35h 48m
2 stops
$682Delta
Wed, Apr 15 - Wed, Apr 22
Multiple Airlines Logo
6:22 pm - 6:50 am
HLN
-
LHR
29h 28m
2 stops
Multiple Airlines Logo
9:50 am - 5:45 pm
LHR
-
HLN
14h 55m
1 stop
$733Multiple Airlines
Wed, Apr 1 - Wed, Apr 8
Delta Logo
1:02 pm - 4:40 pm
HLN
-
LCY
20h 38m
2 stops
Delta Logo
9:20 am - 10:30 pm
LCY
-
HLN
20h 10m
2 stops
$1,223Delta
Fri, May 15 - Fri, May 22
KLM Logo
1:00 pm - 11:40 am
HLN
-
LCY
15h 40m
2 stops
KLM Logo
10:00 am - 10:33 pm
LCY
-
HLN
19h 33m
2 stops
$2,033KLM
Fri, May 15 - Fri, May 22
KLM Logo
1:00 pm - 11:40 am
HLN
-
LCY
15h 40m
2 stops
KLM Logo
10:00 am - 10:33 pm
LCY
-
HLN
19h 33m
2 stops
$2,190KLM
Sat, May 16 - Fri, May 22
Air Europa Logo
1:00 pm - 6:30 pm
HLN
-
LCY
22h 30m
2 stops
Air Europa Logo
9:20 am - 10:33 pm
LCY
-
HLN
20h 13m
2 stops
$2,270Air Europa
Sat, May 16 - Fri, May 22
Air Europa Logo
1:00 pm - 1:15 pm
HLN
-
LCY
17h 15m
2 stops
Air Europa Logo
10:00 am - 10:33 pm
LCY
-
HLN
19h 33m
2 stops
$2,425Air Europa
Booking Insights

KAYAK's insights & trends for Helena to the United Kingdom flights

Get data-powered insights and trends into flights from Helena to the United Kingdom to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Helena to the United Kingdom?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Helena to the United Kingdom were found on United Airlines ($649) and KLM ($678).

Find deals

Good to know

Cheapest flight$649
Flight from Helena to London

FAQs - booking United Kingdom flights

  • How does KAYAK find such low prices on flights from Helena to the United Kingdom?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Helena to the United Kingdom.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Helena to the United Kingdom?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Helena to the United Kingdom is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Helena to the United Kingdom?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Helena to the United Kingdom with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Helena to the United Kingdom?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Helena to the United Kingdom up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Helena to the United Kingdom

 
Need help choosing which airline to fly with from Helena to the United Kingdom? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9299 reviews
8.1Crew
7.7Boarding
7.3Comfort
7.1Entertainment
6.6Food
Airline reviews

Entertainment kept turning itself off. Gave up on watching a movie.

8.0 ExcellentLeslie, Feb 2026
SFO - YYZ
Read more United Airlines reviews

Entertainment kept turning itself off. Gave up on watching a movie.

Both the WIFI and entertainment did not work for 2.5h

The crew made our experience extremely bad. They were rude and didn’t have anything for kids.

Very old flight - time to retire it for newer airplanes

2+ hours delayed Outlet in row 12 did not work Tv monitors did not work Lights kept off the entire flight for at 5pm-7pm flight

Very disappointing given gate agent behavior. Filed a formal complaint with United.

Do not like the size of the overhead bin. I think staff should monitor the size of suitcases that are being carried on by passengers to ensure they meet the size requirement.

Crew was great (professional, attentive, prompt). Snacks for 4 hrs flight is deplorable.

Flight delayed. WiFi connectivity very poor if not existant. Last minute arrival forced me to run to catch my connection.

Both of my flights arrived early and check in process was smooth

Everything you need to know for your flight from Helena to the United Kingdom

Information on your arrival and departure airports

Helena (HLN)