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Cheap flights from Billings to London from $365

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Billings to London departing on 3/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Billings to London

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
7:00 am - 9:40 am
BIL
-
LHR
19h 40m
1 stop
United Airlines Logo
6:35 am - 9:50 am
LHR
-
BIL
34h 15m
2 stops
$838United Airlines
Fri, Feb 27 - Tue, Mar 3
United Airlines Logo
7:00 am - 8:25 am
BIL
-
LHR
18h 25m
2 stops
United Airlines Logo
11:10 am - 9:50 am
LHR
-
BIL
29h 40m
2 stops
$842United Airlines
Fri, Feb 27 - Tue, Mar 3
United Airlines Logo
10:49 am - 9:10 am
BIL
-
LHR
15h 21m
2 stops
United Airlines Logo
11:10 am - 9:50 am
LHR
-
BIL
29h 40m
2 stops
$843United Airlines
Fri, Feb 27 - Tue, Mar 3
United Airlines Logo
7:00 am - 9:40 am
BIL
-
LHR
19h 40m
1 stop
United Airlines Logo
11:10 am - 5:12 pm
LHR
-
BIL
37h 02m
2 stops
$845United Airlines
Wed, Feb 25 - Sun, Mar 1
Air Canada Logo
7:00 am - 7:10 am
BIL
-
LHR
17h 10m
2 stops
Air Canada Logo
1:00 pm - 9:21 pm
LHR
-
BIL
39h 21m
2 stops
$849Air Canada
Wed, Feb 25 - Sun, Mar 1
United Airlines Logo
10:49 am - 9:40 am
BIL
-
LHR
15h 51m
1 stop
United Airlines Logo
11:35 am - 5:12 pm
LHR
-
BIL
12h 37m
1 stop
$861United Airlines
Wed, Feb 25 - Sun, Mar 1
United Airlines Logo
6:30 am - 10:15 am
BIL
-
LHR
21h 45m
2 stops
United Airlines Logo
12:05 pm - 8:57 pm
LHR
-
BIL
39h 52m
2 stops
$946United Airlines
Fri, Mar 27 - Fri, Apr 3
Multiple Airlines Logo
7:56 am - 7:10 am
BIL
-
LHR
17h 14m
1 stop
Multiple Airlines Logo
10:05 am - 10:09 pm
LHR
-
BIL
19h 04m
1 stop
$956Multiple Airlines
Fri, Mar 27 - Fri, Apr 3
Multiple Airlines Logo
7:56 am - 7:10 am
BIL
-
LHR
17h 14m
1 stop
Multiple Airlines Logo
11:10 am - 10:09 pm
LHR
-
BIL
17h 59m
2 stops
$961Multiple Airlines
Fri, Mar 27 - Fri, Apr 3
United Airlines Logo
5:55 pm - 8:40 pm
BIL
-
LHR
19h 45m
2 stops
United Airlines Logo
2:05 pm - 5:16 pm
LHR
-
BIL
34h 11m
2 stops
$1,053United Airlines
Sat, May 30 - Fri, Jun 12

United Airlines flights from Billings to London Heathrow Airport

Our best United Airlines deals on Billings to London Heathrow Airport flight tickets
United Airlines
Feb 25
BIL7:00 amBillings Logan Intl
19h 40m
1 stop
LHR9:40 amLondon Heathrow
Mar 12
LHR6:35 amLondon Heathrow
20h 32m
2 stops
BIL9:07 pmBillings Logan Intl
$833
United Airlines
Feb 27
BIL7:00 amBillings Logan Intl
19h 40m
1 stop
LHR9:40 amLondon Heathrow
Mar 3
LHR6:35 amLondon Heathrow
34h 15m
2 stops
BIL9:50 amBillings Logan Intl
$838
United Airlines
Feb 27
BIL2:35 pmBillings Logan Intl
12h 05m
1 stop
LHR9:40 amLondon Heathrow
Mar 3
LHR6:35 amLondon Heathrow
34h 15m
2 stops
BIL9:50 amBillings Logan Intl
$839

American Airlines flights from Billings to London Heathrow Airport

Our best American Airlines deals on Billings to London Heathrow Airport flight tickets
American Airlines
May 6
BIL1:51 pmBillings Logan Intl
14h 04m
1 stop
LHR10:55 amLondon Heathrow
May 13
LHR10:05 amLondon Heathrow
19h 38m
1 stop
BIL10:43 pmBillings Logan Intl
$678
American Airlines
May 6
BIL6:00 amBillings Logan Intl
21h 55m
1 stop
LHR10:55 amLondon Heathrow
May 13
LHR11:00 amLondon Heathrow
18h 43m
2 stops
BIL10:43 pmBillings Logan Intl
$682
American Airlines
May 6
BIL6:00 amBillings Logan Intl
21h 55m
1 stop
LHR10:55 amLondon Heathrow
May 11
LHR8:55 amLondon Heathrow
20h 48m
1 stop
BIL10:43 pmBillings Logan Intl
$728

momondo Fare Finder

 
Customize your flight search to find flights from Billings to London Heathrow Airport 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, momondo users made 832,500 searches. Data last updated February 11, 2026.
Use the filters below to find and compare flights from Billings to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Fri 2/27

7:00 am-9:40 am

1 stop19h 40m

London Heathrow

Tue 3/3

6:35 am-9:50 am

2 stops34h 15m

$838

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Fri 2/27

7:00 am-8:25 am

2 stops18h 25m

London Heathrow

Tue 3/3

11:10 am-9:50 am

2 stops29h 40m

$842

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Fri 2/27

10:49 am-9:10 am

2 stops15h 21m

London Heathrow

Tue 3/3

11:10 am-9:50 am

2 stops29h 40m

$843

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Wed 2/25

7:00 am-9:40 am

1 stop19h 40m

London Heathrow

Sun 3/1

11:10 am-5:12 pm

2 stops37h 02m

$845

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Wed 2/25

7:00 am-7:10 am

2 stops17h 10m

London Heathrow

Sun 3/1

1:00 pm-9:21 pm

2 stops39h 21m

$849

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Wed 2/25

10:49 am-9:40 am

1 stop15h 51m

London Heathrow

Sun 3/1

11:35 am-5:12 pm

1 stop12h 37m

$861

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Fri 3/27

6:30 am-10:15 am

2 stops21h 45m

London Heathrow

Fri 4/3

12:05 pm-8:57 pm

2 stops39h 52m

$946

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Fri 3/27

7:56 am-7:10 am

1 stop17h 14m

London Heathrow

Fri 4/3

10:05 am-10:09 pm

1 stop19h 04m

$956

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Fri 3/27

7:56 am-7:10 am

1 stop17h 14m

London Heathrow

Fri 4/3

11:10 am-10:09 pm

2 stops17h 59m

$961

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Sat 5/30

5:55 pm-8:40 pm

2 stops19h 45m

London Heathrow

Fri 6/12

2:05 pm-5:16 pm

2 stops34h 11m

$1,053

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 resultsSorted by cheapest first
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See travel insights to London from

How to get the cheapest flight ticket from Billings to London Heathrow Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Can stopping save me money on Billings to London Heathrow Airport flights?

You could potentially save up to 27% on your flight if you consider stops on a Billings to London Heathrow Airport flight.

When to book flights from Billings to London Heathrow Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Billings to London Heathrow Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Billings to London Heathrow Airport (BIL to LHR) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Billings to London Heathrow Airport

Fastest flight time

11h 29m

Direct flights

None
The fastest flight from Billings to London Heathrow Airport takes 11h 29m
There are no direct flights from Billings to London Heathrow Airport. There are no popular flight routes from Billings to London Heathrow Airport.
Search flight deals

  • How far is Billings Logan Intl to London Heathrow by plane?

    The straight-line distance from Billings Logan Intl to London Heathrow is 4472.6 mi. A reasonable flight in good conditions will take 11h 29m.

  • When did momondo last update prices for flights from Billings Logan Intl Airport to London Heathrow Airport?

    Prices for flights from Billings Logan Intl Airport to London Heathrow Airport are updated daily.

  • How many operators does momondo search for flights from Billings Logan Intl Airport to London Heathrow Airport?

  • How old do you have to be to fly from Billings Logan Intl Airport to London Heathrow Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Billings Logan Intl Airport to London Heathrow Airport.

  • What documentation or ID do you need to fly to London Heathrow Airport?

    The required travel and health documents for your London Heathrow Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London Heathrow Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Billings to London Heathrow Airport?

Best airlines flying from Billings to London Heathrow Airport

Compare and see reviews for airlines that fly from Billings to London Heathrow Airport with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $666Free CancellationRating
7.4
9,276 reviews
Search United Airlines flights

Traveling to a place near London?

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Harrow
Watford
Cobham
Folkestone
Romford
Stansted

Why use momondo?

Why should I use momondo to find a flight deal from Billings to London?

It is quick and easy to find Billings to London flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to London that suits you.

Can I find flights from Billings to London with flexible booking policies on momondo?

Flights from Billings to London with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Billings to London?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to London from Billings.

I’m not ready to book a flight from Billings to London right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Billings to London flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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