BIL - LHR

$174 Find Cheap Flights from Billings to London - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Billings to Heathrow departing on 11/4. 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

KAYAK searches hundreds of travel sites at once for deals on flights to London Heathrow Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Billings to London, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Billings to London, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 21% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$762
United Airlines
Tue 10/20Thu 10/22
BIL - LHR • 2 stops
Cheapest one-way
$174
Virgin Atlantic
Wed 11/4
BIL - LHR • 2 stops
Top airlines
Cheapest • from $762 (round-trip)
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Billings and Heathrow. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $887 (round-trip)
Shortest trip • 12h 27m (one-way)
Insights
Insights
Insights
Insights
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Heathrow!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Billings to Heathrow (BIL-LHR)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Billings to Heathrow 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 Billings to Heathrow

Tue, Oct 20 - Thu, Oct 22
United Airlines Logo
5:00 am - 10:00 am
BIL
-
LHR
22h 00m
2 stops
United Airlines Logo
7:30 am - 10:51 pm
LHR
-
BIL
22h 21m
2 stops
$762United Airlines
Tue, Oct 20 - Thu, Oct 22
United Airlines Logo
2:28 pm - 12:25 pm
BIL
-
LHR
14h 57m
1 stop
United Airlines Logo
7:30 am - 5:16 pm
LHR
-
BIL
16h 46m
2 stops
$840United Airlines
Tue, Oct 20 - Thu, Oct 22
Alaska Airlines Logo
7:32 pm - 3:05 pm
BIL
-
LHR
12h 33m
1 stop
Alaska Airlines Logo
5:00 pm - 11:50 pm
LHR
-
BIL
13h 50m
1 stop
$884Alaska Airlines
Tue, Oct 20 - Thu, Oct 22
Alaska Airlines Logo
7:32 pm - 3:05 pm
BIL
-
LHR
12h 33m
1 stop
Alaska Airlines Logo
5:00 pm - 11:50 pm
LHR
-
BIL
13h 50m
1 stop
$885Alaska Airlines
Fri, Oct 16 - Thu, Oct 29
United Airlines Logo
7:00 am - 12:25 pm
BIL
-
LHR
22h 25m
1 stop
United Airlines Logo
6:35 am - 9:04 pm
LHR
-
BIL
20h 29m
2 stops
$923United Airlines
Fri, Oct 16 - Thu, Oct 29
United Airlines Logo
7:00 am - 12:25 pm
BIL
-
LHR
22h 25m
1 stop
United Airlines Logo
6:35 am - 9:04 pm
LHR
-
BIL
20h 29m
2 stops
$924United Airlines
Fri, Oct 16 - Thu, Oct 29
United Airlines Logo
7:00 am - 12:25 pm
BIL
-
LHR
22h 25m
1 stop
United Airlines Logo
6:35 am - 9:04 pm
LHR
-
BIL
20h 29m
2 stops
$925United Airlines
Fri, Oct 16 - Thu, Oct 29
United Airlines Logo
7:00 am - 6:55 am
BIL
-
LHR
16h 55m
2 stops
United Airlines Logo
6:35 am - 9:04 pm
LHR
-
BIL
20h 29m
2 stops
$928United Airlines
Fri, Oct 16 - Thu, Oct 29
United Airlines Logo
7:00 am - 6:55 am
BIL
-
LHR
16h 55m
2 stops
United Airlines Logo
6:35 am - 9:04 pm
LHR
-
BIL
20h 29m
2 stops
$929United Airlines
Tue, Sep 1 - Wed, Sep 16
United Airlines Logo
2:29 pm - 9:40 am
BIL
-
LHR
12h 11m
1 stop
United Airlines Logo
6:55 am - 9:00 pm
LHR
-
BIL
21h 05m
2 stops
$933United Airlines
Booking Insights

KAYAK's insights & trends for Billings to Heathrow flights

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

Which airlines provide the cheapest flights from Billings to London?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 5 days.

In the past 5 days, the cheapest round-trip tickets from Billings to London were found on United Airlines ($762) and Alaska Airlines ($884).

Good to know

Cheapest flight$174
Flight from Billings to London

When to book flights from Billings to Heathrow

Are your dates flexible? Find out the best times to travel from Billings to Heathrow based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Billings to London flights

  • What is the cheapest flight from Billings to London Heathrow Airport?

    In the last 5 days, the lowest price for a flight from Billings to London Heathrow Airport was $174 for a one-way ticket and $762 for a round-trip.

  • Do I need a passport to fly between Billings and London?

    A passport is required to fly from Billings to London.

  • Which aircraft models fly most regularly from Billings to London?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Billings to London?

    Star Alliance is the only airline alliance operating flights between Billings and London.

  • How does KAYAK find such low prices on flights from Billings to London?

    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 Billings to London.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London from Billings 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 Billings to London?

    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 to London with an airline and back to Billings with another airline. Booking your flights between Billings and LHR can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Billings to London?

    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 to London from Billings 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 Billings to Heathrow

 
See real verified KAYAK customer reviews for airlines flying from Billings to London. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Billings to Heathrow? 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 9896 reviews
7.1Entertainment
6.6Food
7.7Boarding
7.3Comfort
8.1Crew
Airline reviews

I was very disappointed with my experience at the United Airlines baggage check. The representative was rude and unhelpful. I was required to remove approximately 1.5 pounds from my two checked bags, even though it was a very small amount over the limit. The interaction was unnecessarily unpleasant, and I expected much better customer service. I hope United will review this incident and provide additional customer service training to its staff.

10.0 ExcellentAnonymous, Jun 2026
LAX - LHR
Read more United Airlines reviews

I was very disappointed with my experience at the United Airlines baggage check. The representative was rude and unhelpful. I was required to remove approximately 1.5 pounds from my two checked bags, even though it was a very small amount over the limit. The interaction was unnecessarily unpleasant, and I expected much better customer service. I hope United will review this incident and provide additional customer service training to its staff.

Cree was organized and pleasant. Plane had good seating but as it’s a shuttle toilets hadn’t been thoroughly cleaned (eg. bins too full)

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.

Although the flight was delayed the crew and the flight itself were very good. Couldn't fault anything and after the disappointment of being abandoned in the US by BA it was a welcome relief to travel with United

Liked fold flat bed. Didn’t like having no window. Didn’t like poor choice of food and being served dinner very late, hours after take off of a 7:40pm flight. Servers not friendly. Food horrible in business class.

The flight was heavily booked so boarding was a lengthy process. The FA’s were rather abrupt during this process but became more gracious as the flight went on. Breakfast (puffed pastry and chewy sausage) was pretty horrible but there was fruit and yogurt which they didn’t mess up. Overall it was fine.

Fight was delayed an hour due to operational issues ,then further delayed due to ground control for a total of about 1.30 hours. Salad was completely frozen and flatware was so cold you could barely handle it. Crew was friendly and professional and the flight was smooth. The aircraft was clean and well-serviced.

Waited for our plane from HNL so we didn't miss connection. AMAZING Service for that, then really clean plane. Nice airline attendants.

Horrible! I paid for a straight flight from Chicago to London. A week before trip it changed and now I had a connecting flight. Our flight was delayed an hour and a half because our flight crew was still flying in from CA. Forty passengers ran from one plane to the next. The next United Airlines flight was delayed two to three hours because of mechanical difficulties. They had to ready another plane which took time. I missed my scheduled excursion in London. 😢

Lufthansa placed a 300 lb passenger in the aisle seat and I was stuck in the middle leaning sideways with no arm rest or ability to sit up straight and fully use my seat (due to encroachment-the seats are very narrow) the entire flight.

Everything you need to know for your flight from Billings to Heathrow

Information on your arrival and departure airports