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$649+ Cheap flights from Billings (BIL) to London (LON)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/15. Fares are subject to change and may not be available on all flights or dates of travel.
BIL — LON
Mar 5 — Mar 121
Thu 3/5
Thu 3/12
1 adult, Economy
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Cheap flight deals from Billings to London

Cheapest flights from Billings to London
Explore the most affordable flight options available from Billings to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 3, 2026.

This United Airlines deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/155:55 pm
BIL
-
LHR
1 stop33h 45m
United Airlines
Wed 3/256:00 pm
LHR
-
BIL
2 stops33h 07m
United Airlines
Deal found 2/2$649
This United Airlines deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/116:30 am
BIL
-
LHR
2 stops21h 55m
United Airlines
Wed 3/256:00 pm
LHR
-
BIL
2 stops33h 07m
United Airlines
Deal found 2/2$653
This Delta deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/156:21 pm
BIL
-
LHR
1 stop33h 39m
Delta
Wed 3/2510:45 am
LHR
-
BIL
1 stop30h 08m
Delta
Deal found 2/2$664
This Delta deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/116:21 pm
BIL
-
LHR
2 stops16h 29m
Delta
Tue 3/241:05 pm
LHR
-
BIL
2 stops27h 48m
Delta
Deal found 2/2$668
This United Airlines deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/135:55 pm
BIL
-
LHR
2 stops30h 45m
United Airlines
Mon 3/2312:50 pm
LHR
-
BIL
2 stops27h 03m
United Airlines
Deal found 2/2$679
This Delta deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/145:15 am
BIL
-
LHR
2 stops23h 40m
Delta
Tue 3/2410:45 am
LHR
-
BIL
1 stop17h 44m
Delta
Deal found 2/2$768
This Delta deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/16:25 pm
BIL
-
LHR
2 stops16h 10m
Delta
Wed 9/166:30 am
LHR
-
BIL
2 stops23h 07m
Delta
Deal found 2/2$825
This Mytrip deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/155:55 pm
BIL
-
LHR
2 stops31h 15m
Air Canada
Sun 3/292:10 pm
LHR
-
BIL
2 stops50h 30m
Air Canada
Deal found 2/2$831
This United Airlines deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/155:55 pm
BIL
-
LHR
1 stop33h 45m
United Airlines
Sun 3/291:40 pm
LHR
-
BIL
2 stops27h 00m
United Airlines
Deal found 2/2$833
This United Airlines deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/187:00 am
BIL
-
LHR
1 stop19h 40m
United Airlines
Tue 9/85:40 pm
LHR
-
BIL
2 stops34h 11m
United Airlines
Deal found 2/2$834
This Cheapflightsfares deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/12:30 pm
BIL
-
LCY
2 stops20h 25m
Lufthansa
Mon 7/69:15 am
LCY
-
BIL
2 stops18h 54m
Lufthansa
Deal found 2/2$1,752
This Cheapflightsfares deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/182:40 pm
BIL
-
LCY
2 stops20h 15m
Lufthansa
Tue 9/89:15 am
LCY
-
BIL
2 stops18h 36m
Lufthansa
Deal found 2/2$2,091

Find flight deals from Billings to London

Discover tips and strategies to find the most affordable flight options for your journey from Billings (BIL) to London (LON). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 3, 2026.

Most accurate provider

Ovago
2 stars

Most trusted provider

Ovago
3 stars

Round-trip from

$649
(United Airlines)
Provider with most accurate pricing for Billings Logan Intl-London (LON) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Billings Logan Intl-London (LON) flights.
Search Deals
From Billings Logan Intl to London (LON)
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Billings to London 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, Cheapflights users made 2,558,603 searches. Data last updated February 3, 2026.
Use the filters below to find and compare flights from Billings to London that are best for you.

Fly from

Billings

Fly to

London

Route

Depart

Return

Price

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Mon 3/16

6:30 am-9:40 am

1 stop21h 10m

London Heathrow

Wed 3/25

6:00 pm-9:07 pm

2 stops33h 07m

$649

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Sun 3/15

5:55 pm-9:40 am

1 stop33h 45m

London Heathrow

Wed 3/25

6:00 pm-9:07 pm

2 stops33h 07m

$649

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Tue 3/17

11:34 am-10:00 am

1 stop16h 26m

London Heathrow

Tue 3/24

10:45 am-10:29 pm

1 stop17h 44m

$664

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Mon 3/16

6:30 am-9:40 am

1 stop21h 10m

London Heathrow

Tue 3/24

3:20 pm-1:23 pm

2 stops28h 03m

$664

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Mon 3/16

2:35 pm-9:40 am

1 stop13h 05m

London Heathrow

Mon 3/23

3:20 pm-1:23 pm

2 stops28h 03m

$664

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Wed 3/11

11:34 am-10:30 am

2 stops16h 56m

London Heathrow

Thu 3/19

10:45 am-10:29 pm

1 stop17h 44m

$668

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Wed 3/11

6:21 pm-4:50 pm

2 stops16h 29m

London Heathrow

Fri 3/20

8:00 pm-8:19 pm

2 stops30h 19m

$668

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Wed 3/11

11:34 am-10:00 am

1 stop16h 26m

London Heathrow

Tue 3/24

10:45 am-10:29 pm

1 stop17h 44m

$764

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Thu 3/12

6:25 am-10:40 am

2 stops22h 15m

London Heathrow

Tue 3/24

10:45 am-10:29 pm

1 stop17h 44m

$768

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Sun 3/15

5:55 pm-7:10 am

2 stops31h 15m

London Heathrow

Sun 3/29

2:10 pm-9:40 am

2 stops50h 30m

$831

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/2

Showing 1-10 of 16 results
1
2

Compare providers for flights from Billings to London

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Billings to London in February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Billings-London flights, users find the pricing of Ovago to be most consistent on Cheapflights vs. Ovago Users can find the same prices on Billings-London flight deals on Cheapflights vs. Ovago 90-95% of the time. Price accuracy is based on data collected from Billings-London flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Billings-London flights, Cheapflights users trust Ovago the most. Ovago has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Billings-London flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Billings to London

Have a flexible travel schedule? Discover the best time to fly to London from Billings with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Billings to London
No data available for this route at this time. Please check back soon.

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to London. Reviews last updated February 3, 2026.
Peruse reviews from past customers who have flown with United Airlines from Billings to London to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,236 reviews

Entertainment

7.1

Food

6.6

Crew

8.1

Comfort

7.3

Boarding

7.7

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,236 reviews
United Airlines
7.4
Good
9,236 reviews

Entertainment

7.1

Food

6.6

Crew

8.1

Comfort

7.3

Boarding

7.7

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Related info for your journey

Find useful and relevant information for your journey from Billings to London. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Billings to London?

    Billings Logan Intl (BIL), located 2.7 mi from the city center, is the airport you fly out of when you book flights from Billings to London. 1 airline have flights from Billings Logan Intl to London on a regular basis. Booking flights from Billings Logan Intl to London should not be difficult; the airport handles an average of 0 outbound flights to London per day.

  • How long is the flight from Billings to London?

    For as low as $664, United Airlines can have you in London from Billings in 16h 26m. There are 4473 mi between Billings and London. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What is the cheapest airline to fly from Billings to London round-trip?

    According to our current data, United Airlines ($666), offers the cheapest pricing from Billings to London.

  • Can I find deals for flights from Billings to London that include hotel bookings?

    Yes. In addition to deals on Billings to London flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Billings to London?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Billings to London.

  • Can I find deals for business class flights from Billings to London?

    Yes. Cheapflights offers flight deals from Billings to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Ilford
Hounslow
Croydon
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Harrow
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Gatwick
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Winchester
Orpington
Watford
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Chipping Norton
Horley
Kingston upon Thames
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Sutton

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Billings to London

Discover the top airline that operate flights from Billings to London. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 3, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$666Average$803FlexibilityNo cancel feeOn-time69%

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