$334 Find Cheap Flights from Helena to the United Kingdom

This is the cheapest one-way 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 9/22. 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

So, Sep 13 - Do, Okt 8
United Airlines Logo
6:15 am - 12:20 pm
HLN
-
LHR
23h 05m
1 stop
United Airlines Logo
7:30 am - 8:59 pm
LHR
-
HLN
20h 29m
2 stops
$947United Airlines
Di, Sep 15 - Do, Okt 8
United Airlines Logo
6:15 am - 7:40 am
HLN
-
LHR
18h 25m
2 stops
United Airlines Logo
7:30 am - 8:59 pm
LHR
-
HLN
20h 29m
2 stops
$951United Airlines
Sa, Sep 12 - Do, Okt 8
United Airlines Logo
2:29 pm - 11:35 am
HLN
-
LHR
38h 06m
2 stops
United Airlines Logo
7:30 am - 8:59 pm
LHR
-
HLN
20h 29m
2 stops
$962United Airlines
Mo, Sep 14 - Do, Okt 8
United Airlines Logo
2:29 pm - 6:55 am
HLN
-
LHR
33h 26m
2 stops
United Airlines Logo
7:30 am - 8:59 pm
LHR
-
HLN
20h 29m
2 stops
$963United Airlines
So, Sep 13 - Di, Okt 6
United Airlines Logo
6:15 am - 12:20 pm
HLN
-
LHR
23h 05m
1 stop
United Airlines Logo
11:25 am - 8:59 pm
LHR
-
HLN
16h 34m
1 stop
$964United Airlines
Mo, Sep 14 - Mo, Okt 5
Multiple Airlines Logo
4:08 pm - 6:55 am
HLN
-
LHR
31h 47m
2 stops
Multiple Airlines Logo
4:25 pm - 3:31 pm
LHR
-
HLN
30h 06m
2 stops
$965Multiple Airlines
So, Sep 13 - Mi, Okt 7
Delta Logo
12:50 pm - 12:15 pm
HLN
-
LHR
16h 25m
2 stops
Delta Logo
3:50 pm - 12:24 pm
LHR
-
HLN
27h 34m
2 stops
$969Delta
Sa, Sep 12 - Di, Okt 6
United Airlines Logo
2:29 pm - 11:35 am
HLN
-
LHR
38h 06m
2 stops
United Airlines Logo
8:00 am - 1:27 pm
LHR
-
HLN
36h 27m
2 stops
$980United Airlines
Fr, Mai 8 - Mi, Mai 27
KLM Logo
1:03 pm - 11:40 am
HLN
-
LCY
15h 37m
2 stops
KLM Logo
10:00 am - 10:33 pm
LCY
-
HLN
19h 33m
2 stops
$2,722KLM
Mi, Mai 6 - Mi, Mai 27
Delta Logo
1:04 pm - 4:40 pm
HLN
-
LCY
20h 36m
2 stops
Delta Logo
8:25 am - 10:33 pm
LCY
-
HLN
21h 08m
2 stops
$8,483Delta
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 ($947) and KLM ($2,722).

Good to know

Cheapest flight$334
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 9514 reviews
7.7Boarding
7.1Entertainment
6.6Food
7.3Comfort
8.1Crew
Airline reviews

Efficient boarding and early departure. Very smooth flight. Early arrival in ATL. Great flight.

10.0 ExcellentDr. Joseph, Mar 2026
ORD - ATL
Read more United Airlines reviews

Efficient boarding and early departure. Very smooth flight. Early arrival in ATL. Great flight.

We purchase first class seats for the first time for multiples of standard economy ticket. There was no access to the club lounge and no priority boarding. The meal and the service once on the plane were superior and the seat was nicer, but not worth the price difference. I will be happy to seat in economy and spend the difference on more travel.

The business class seat is exceptional. I wish the food is more palatable.

Wonderful in-seat entertainment with seatback screens and huge selection of quality movies. The ability to bluetooth connect headphones was amazing.

the entire flight felt off. The crew seemed uninterested and disengaged. The food service was really bad - overcooked, bland, weird food service. They actually woke us up to serve chicken wraps in the middle of the night, after dinner and before breakfast. Made no sense. Ultimately, I was glad they did though, because the breakfast had been held for so long it was inedible. Eggs, potatoes, sausage - all disgusting. We were asked to "honor" the lavatories for premium customers and stay in our own cabin: this was also strange. So people in economy didn't pay enough to use the closest toilet to them??? It's a toilet. All in all, not the experience I have come to expect from United Airlines. The return flight from Paris to SFO was better, btw.

Smooth and easy boarding, comfortable for the entire 5 hour flight, and the seat back entertainment was great! I appreciated all the features, from location info and maps, movies, the ability to connect with Bluetooth headphones, and good selection of movies. Food was good, normal airline snacks (I didn’t purchase anything)

Overall, the flight was good. Lounge access should be with all business class tickets.

They promise free wi-fi prior to boarding and then once on board you are informed you have to purchase wifi even after being a mileagePlus member.

I've been flying American mostly, and it's been very frustrating. This united flight makes me realize maybe the issue isn't flying, but the airline. United was a significantly better experience. The plane was more comfortable, with a normal amount of leg room (vs the ridiculous reductions AA has made), more comfortable seats, screens to watch movies. It was a much better experience!

Awful. No counter attendants. No dinner offered due to delays.

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

Information on your arrival and departure airports