$618 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 3/30. 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

lun, mar 30 - gio, apr 9
Multiple Airlines Logo
12:59 pm - 9:50 am
HLN
-
LHR
13h 51m1 stop
Multiple Airlines Logo
6:15 am - 10:30 pm
LHR
-
HLN
23h 15m2 stops
$618Multiple Airlines
lun, mar 30 - mer, apr 8
Delta Logo
12:59 pm - 9:50 am
HLN
-
LHR
13h 51m1 stop
Delta Logo
8:40 am - 12:19 pm
LHR
-
HLN
34h 39m2 stops
$622Delta
dom, mar 29 - gio, apr 9
Delta Logo
12:59 pm - 2:15 pm
HLN
-
LHR
42h 16m2 stops
Delta Logo
6:15 am - 10:30 pm
LHR
-
HLN
23h 15m2 stops
$623Delta
lun, mar 30 - gio, apr 9
KLM Logo
12:59 pm - 9:50 am
HLN
-
LHR
13h 51m1 stop
KLM Logo
10:55 am - 10:30 pm
LHR
-
HLN
18h 35m1 stop
$625KLM
mar, mar 31 - gio, apr 9
Delta Logo
5:30 am - 9:50 am
HLN
-
LHR
21h 20m1 stop
Delta Logo
6:15 am - 10:30 pm
LHR
-
HLN
23h 15m2 stops
$628Delta
dom, mar 29 - mer, apr 8
Delta Logo
5:30 am - 12:15 pm
HLN
-
LHR
23h 45m2 stops
Delta Logo
11:40 am - 12:19 pm
LHR
-
HLN
31h 39m2 stops
$629Delta
ven, feb 20 - ven, feb 27
Delta Logo
1:10 pm - 10:00 am
HLN
-
LHR
13h 50m1 stop
Delta Logo
8:00 pm - 12:25 pm
LHR
-
HLN
23h 25m2 stops
$638Delta
lun, mar 9 - dom, mar 22
Delta Logo
5:30 am - 10:00 am
HLN
-
LHR
22h 30m1 stop
Delta Logo
10:45 am - 12:19 pm
LHR
-
HLN
31h 34m1 stop
$639Delta
dom, mar 29 - mar, apr 7
United Airlines Logo
2:25 pm - 12:20 pm
HLN
-
LHR
14h 55m1 stop
United Airlines Logo
7:25 am - 1:39 pm
LHR
-
HLN
37h 14m2 stops
$647United Airlines
mer, feb 25 - dom, mar 1
United Airlines Logo
6:15 am - 2:50 pm
HLN
-
MAN
25h 35m2 stops
United Airlines Logo
6:00 am - 1:40 pm
MAN
-
HLN
38h 40m2 stops
$665United Airlines
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 fly non-stop between Helena and United Kingdom?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for round-trip flights from Helena to the United Kingdom.

There is just one airline that flies from Helena to the United Kingdom direct and that is Delta. The best round-trip deal found from Delta for the route is to Manchester (MAN) and costs $700.

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 Delta ($623) and KLM ($625).

Good to know

Cheapest flight$618
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 airlines 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.
7.9
DeltaOverall score based on 8025 reviews
8.5Crew
7.8Entertainment
7.2Food
7.9Comfort
8.1Boarding
Airline reviews

It was Delta, but the flight attendants were stressful and disrespectful. I am a diamond member a travel weekly. I have not had a negative thing to share in quite some time. But this was noticeable.

2.0 MediocreWilliam, Jan 2026
LGA - BOS
Read more Delta reviews

It was Delta, but the flight attendants were stressful and disrespectful. I am a diamond member a travel weekly. I have not had a negative thing to share in quite some time. But this was noticeable.

Comfort Plus seat 11E seemed smaller than prior flights. The movie selection is good. Watched most of the most recent Tron movie. I'll watch the remaining part later as my movie is saved in the Delta Seatback Experience.

Flight was late from Newark to Atlanta, I asked flight attendant to please let my family of 3 out first when we landed to Atlanta because we were late for our connecting flight to Quito. She didn't and we were late for 5 minutes we couldn't board the plane and spend hours trying to get another flight with customer service for the next day.

I really liked the legroom. I am 6’4”.a at For some reason our seats were not together and using the app to fix it didn’t work. Passengers were nice enough to move for us but you should absolutely ensure a parent sits with their child.

Late delayed flight delays boarding and delays leaving and delays on arrival too. Cramped plane no room no food.

DTW line is too long. The flights from DTW to BWI are always delayed for unknown reasons.

Delta canceled our flight and we had to scramble to find another airline to get home. Phoenix is not a delta hub so they didn’t have another plane. It would have been a red eye though Salt Lake City. Getting in at 5am. No bueno.

This flight was no comparison to our prior flight. I'm thinking it all has to do with the age of the aircraft.

This flight was a first class choice and left much to be desired. Seat backs on seats were falling apart and torn. Seats actually didn't come to a "full & upright position". Pull out table was sprung. Not any significant leg room. All in all we were on an obviously older plane and felt overcharged for what we received as first class.

A 12 hour flight during the day with one real meal service - are you kidding? Also the breakfast was one of the worst and not what was listed

Some flight attendants were great others were cranky. Seats were very tight and sitting on an aisle was very hard as the carts and people walking constantly bumped shoulder and arm.

It was great with United overall except for two things. 1) It was a 5-hour flight and we were with kids, so we were asking for extra snacks. They were extremely reticent to dole them out even though there wasn't any meal and the kids were starting to hit their limit towards the end. 2) Baggage didn't arrive until 80 minutes after we landed.

They lost my luggage, so, not happy. The crew was nice but my suitcases never made it, still trying to find out what happened!

The staff was hospitable and professional. The seat had a bit of wear. The winner shade was stuck 1/4 open. I received the best of both worlds. The morning sun was able to come in and blind the screen i was trying to use while at the same time it was too low to look out and enjoy the view. Rather embarrassing for a 1st class ticket.

Perfect flight. Smooth flight. Arrived 20 minutes early at destination. Excellent service.

The flights were on time which was great give. It was holiday travel season and there’d been some weather issues. The only complaint and this is every time with United is the terrible seat design. The head rest is not built for comfort and having my neck bent forward for a cross country trip reminded me while I try not to take United flights as a rule.

I’m so sorry, I can’t remember her name, I believe it was Dimpti. She was stellar, also a mature Asian flight attendant, lots of flowers in her hair, just as amazing! But literally the crew was AWESOME . Only downside is there weren’t any charging outlets. Maybe I needed to ask a flight attendant , but it would’ve been nice to have one easily accessible.

The flight was delayed by two de-icings. The seatbelt did not work correctly. It did not stay tight.

Everything was absolutely wonderful from check in to baggage claim. Staff was very professional and sweet. Will definitely recommend United to family and friends.

Aircraft was noisy, old and never dimmed the lights on a night flight even on business class! I flew 17 times on United and probably another 40 on other airlines United USA /Europe flights were the worst to include luggage delayed once going to europe and once coming back

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

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