Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Billings to London from $450

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 7/10. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Billings to London

Cheap round-trip flights

Enter your travel dates to find the best prices.
Lufthansa Logo
2:30 pm - 7:40 pm
BIL
-
LHR
46h 10m
2 stops
Lufthansa Logo
7:30 am - 8:57 pm
LHR
-
BIL
20h 27m
2 stops
$850Lufthansa
Tue, May 12 - Tue, May 19
Delta Logo
6:15 am - 9:15 am
BIL
-
LHR
20h 00m
2 stops
Delta Logo
6:15 am - 10:37 pm
LHR
-
BIL
23h 22m
2 stops
$888Delta
Tue, Sep 1 - Wed, Sep 16
Delta Logo
6:25 pm - 7:15 am
BIL
-
LHR
29h 50m
2 stops
Delta Logo
6:15 am - 10:37 pm
LHR
-
BIL
23h 22m
2 stops
$898Delta
Mon, Aug 31 - Wed, Sep 16
American Airlines Logo
12:28 pm - 9:05 am
BIL
-
LHR
13h 37m
1 stop
American Airlines Logo
1:10 pm - 10:22 pm
LHR
-
BIL
16h 12m
1 stop
$904American Airlines
Tue, Sep 1 - Tue, Sep 15
Multiple Airlines Logo
12:28 pm - 9:05 am
BIL
-
LHR
13h 37m
1 stop
Multiple Airlines Logo
1:10 pm - 10:22 pm
LHR
-
BIL
16h 12m
1 stop
$905Multiple Airlines
Tue, Sep 1 - Sat, Sep 19
Delta Logo
6:15 am - 9:15 am
BIL
-
LHR
20h 00m
2 stops
Delta Logo
12:25 pm - 10:37 pm
LHR
-
BIL
17h 12m
1 stop
$909Delta
Tue, Sep 1 - Wed, Sep 16
Delta Logo
6:25 pm - 6:45 am
BIL
-
LHR
29h 20m
2 stops
Delta Logo
12:25 pm - 10:27 pm
LHR
-
BIL
17h 02m
2 stops
$920Delta
Mon, Aug 31 - Tue, Sep 15
Delta Logo
6:15 am - 9:15 am
BIL
-
LHR
20h 00m
2 stops
Delta Logo
8:55 am - 10:37 pm
LHR
-
BIL
20h 42m
2 stops
$938Delta
Tue, Sep 1 - Mon, Sep 14
Delta Logo
6:15 am - 11:20 am
BIL
-
LHR
22h 05m
2 stops
Delta Logo
8:40 am - 10:37 pm
LHR
-
BIL
20h 57m
2 stops
$940Delta
Tue, Sep 1 - Wed, Sep 16
Delta Logo
6:25 pm - 6:20 am
BIL
-
LHR
28h 55m
2 stops
Delta Logo
6:15 am - 10:37 pm
LHR
-
BIL
23h 22m
2 stops
$944Delta
Sun, Aug 30 - Wed, Sep 16

United Airlines flights from Billings to London Heathrow Airport

Our best United Airlines deals on Billings to London Heathrow Airport flight tickets
United Airlines
May 12
BIL2:30 pmBillings Logan Intl
12h 10m
1 stop
LHR9:40 amLondon Heathrow
May 19
LHR9:30 amLondon Heathrow
18h 27m
2 stops
BIL8:57 pmBillings Logan Intl
$947
United Airlines
Sep 1
BIL7:00 amBillings Logan Intl
20h 00m
2 stops
LHR10:00 amLondon Heathrow
Sep 15
LHR2:50 pmLondon Heathrow
13h 10m
1 stop
BIL9:00 pmBillings Logan Intl
$968
United Airlines
Sep 1
BIL7:00 amBillings Logan Intl
16h 55m
2 stops
LHR6:55 amLondon Heathrow
Sep 15
LHR9:30 amLondon Heathrow
18h 30m
2 stops
BIL9:00 pmBillings Logan Intl
$969

Air Canada flights from Billings to London Heathrow Airport

Our best Air Canada deals on Billings to London Heathrow Airport flight tickets
Air Canada
Aug 31
BIL2:25 pmBillings Logan Intl
33h 05m
2 stops
LHR6:30 amLondon Heathrow
Sep 16
LHR5:40 pmLondon Heathrow
47h 01m
2 stops
BIL9:41 amBillings Logan Intl
$958
Air Canada
Aug 30
BIL5:57 pmBillings Logan Intl
53h 38m
2 stops
LHR6:35 amLondon Heathrow
Sep 16
LHR5:40 pmLondon Heathrow
47h 01m
2 stops
BIL9:41 amBillings Logan Intl
$963
Air Canada
May 10
BIL6:35 amBillings Logan Intl
16h 55m
2 stops
LHR6:30 amLondon Heathrow
May 17
LHR2:05 pmLondon Heathrow
37h 52m
2 stops
BIL8:57 pmBillings Logan Intl
$998

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 March 29, 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

Cheapest round-trip

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Tue 5/12

2:30 pm-7:40 pm

2 stops46h 10m

London Heathrow

Tue 5/19

7:30 am-8:57 pm

2 stops20h 27m

$850

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Tue 9/1

6:15 am-9:15 am

2 stops20h 00m

London Heathrow

Wed 9/16

6:15 am-10:37 pm

2 stops23h 22m

$888

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Mon 8/31

6:25 pm-7:15 am

2 stops29h 50m

London Heathrow

Wed 9/16

6:15 am-10:37 pm

2 stops23h 22m

$898
Quickest round-trip

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Tue 9/1

12:28 pm-9:05 am

1 stop13h 37m

London Heathrow

Tue 9/15

1:10 pm-10:22 pm

1 stop16h 12m

$904

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Tue 9/1

12:28 pm-9:05 am

1 stop13h 37m

London Heathrow

Sat 9/19

1:10 pm-10:22 pm

1 stop16h 12m

$905

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Tue 9/1

6:15 am-9:15 am

2 stops20h 00m

London Heathrow

Wed 9/16

12:25 pm-10:37 pm

1 stop17h 12m

$909

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Mon 8/31

6:25 pm-6:45 am

2 stops29h 20m

London Heathrow

Tue 9/15

12:25 pm-10:27 pm

2 stops17h 02m

$920

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Tue 9/1

6:15 am-9:15 am

2 stops20h 00m

London Heathrow

Mon 9/14

8:55 am-10:37 pm

2 stops20h 42m

$938

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Tue 9/1

6:15 am-11:20 am

2 stops22h 05m

London Heathrow

Wed 9/16

8:40 am-10:37 pm

2 stops20h 57m

$940

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Sun 8/30

6:25 pm-6:20 am

2 stops28h 55m

London Heathrow

Wed 9/16

6:15 am-10:37 pm

2 stops23h 22m

$944

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 14 resultsSorted by cheapest first
1
2

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

16h 35m

Direct flights

None
The fastest flight from Billings to London Heathrow Airport takes 16h 35m
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 16h 35m.

  • 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
9,509 reviews
Search United Airlines flights

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Gatwick
Hounslow
Milton Keynes
Luton
Dover
Slough
Stratford-upon-Avon
Crawley
Hayes
Wembley
Stansted
Croydon
Dartford
Brentwood
Guildford
Cobham
Folkestone
Romford
Harrow
Watford

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.

An easier way to manage your London Heathrow Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Tue 4/28
Tue 5/5
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to London

Popular cities in the United Kingdom

Popular flights according to clicks in the last 7 days on momondo
Flights to London Gatwick Airportfrom $431
Flights to London City Airportfrom $674
Flights to London Stansted Airportfrom $467
Flights to London Luton Airportfrom $518
Flights to Glasgow Intl Airportfrom $524
Flights to Belfast Intl Airportfrom $669
Flights to London Southend Airportfrom $650
Flights to Belfast City Airportfrom $669