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$513+ Cheap flights from Billings (BIL) to London (LON)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/2. Fares are subject to change and may not be available on all flights or dates of travel.
BIL — LON
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheap flight deals from Billings to London

Best flights from Billings to London
Discover carefully curated flight deals from Billings to London that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 18, 2025.

This United Airlines deal was found by Cheapflights users on 12/16. 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 1/302:45 pmBIL - LHR
1 stop11h 55mUnited Airlines
Fri 2/66:35 amLHR - BIL
2 stops21h 48mUnited Airlines
Deal found 12/16$628
This Finnair deal was found by Cheapflights users on 12/16. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/302:15 pmBIL - LHR
1 stop15h 00mMultiple Airlines
Fri 2/62:25 pmLHR - BIL
1 stop15h 08mMultiple Airlines
Deal found 12/16$657
This Cheapflightsfares deal was found by Cheapflights users on 12/18. 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 5/122:40 pmBIL - LCY
2 stops20h 15mLufthansa
Thu 5/219:15 amLCY - BIL
2 stops18h 36mLufthansa
Deal found 12/18$846
This United Airlines deal was found by Cheapflights users on 12/16. 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 1/236:30 amBIL - LHR
1 stop20h 10mUnited Airlines
Tue 1/276:35 amLHR - BIL
2 stops21h 48mUnited Airlines
Deal found 12/16$628
This United Airlines deal was found by Cheapflights users on 12/17. 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 2/255:53 pmBIL - LHR
1 stop32h 47mUnited Airlines
Sun 3/16:00 pmLHR - BIL
2 stops46h 50mUnited Airlines
Deal found 12/17$640
This Delta deal was found by Cheapflights users on 12/16. 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.
Fri 1/306:10 amBIL - LCY
2 stops20h 20mDelta
Fri 2/68:40 amLCY - BIL
2 stops17h 44mDelta
Deal found 12/16$8,333

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 December 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$628
(United Airlines)

One-way from

$513
(KLM)
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.
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From Billings Logan Intl to London (LON)
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One-way flight from Billings Logan Intl to London (LON)
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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 December 18, 2025.
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

Fri 1/30

2:45 pm-9:40 am

1 stop11h 55m

London Heathrow

Fri 2/6

6:35 am-9:23 pm

2 stops21h 48m

$628

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Fri 1/23

6:30 am-9:40 am

1 stop20h 10m

London Heathrow

Tue 1/27

6:35 am-9:23 pm

2 stops21h 48m

$628

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Wed 2/25

5:53 pm-9:40 am

1 stop32h 47m

London Heathrow

Sun 3/1

6:00 pm-9:50 am

2 stops46h 50m

$640

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Fri 1/30

2:15 pm-12:15 pm

1 stop15h 00m

London Heathrow

Fri 2/6

2:25 pm-10:33 pm

1 stop15h 08m

$657

BillingsLondon

BIL - LCY

BILLCY

Billings Logan Intl

Tue 5/12

2:40 pm-5:55 pm

2 stops20h 15m

London City

Thu 5/21

9:15 am-8:51 pm

2 stops18h 36m

$846

BillingsLondon

BIL - LCY

BILLCY

Billings Logan Intl

Fri 1/30

6:10 am-9:30 am

2 stops20h 20m

London City

Fri 2/6

8:40 am-7:24 pm

2 stops17h 44m

$8,333

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Fri 1/2

11:52 am-10:00 am

1 stop15h 08m

$513

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Tue 5/26

2:40 pm-12:20 pm

1 stop14h 40m

$782

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Tue 5/26

5:00 am-6:35 am

3 stops18h 35m

$838

BillingsLondon

BIL - LCY

BILLCY

Billings Logan Intl

Tue 5/26

6:25 pm-4:40 pm

2 stops15h 15m

$898

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/15

Showing 1-10 of 13 results
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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 December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Billings-London flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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 December 18, 2025.
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
9,091 reviews

Entertainment

7.1

Crew

8.1

Overall

7.4

Boarding

7.7

Food

6.6

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Kevin,Dec 2025

BOS - EWR

Seems like every United flight has a delay and it’s always someone else’s fault. Step up and take some accountability
United Airlines
7.4
Good
9,091 reviews
United Airlines
7.4
Good
9,091 reviews

Entertainment

7.1

Crew

8.1

Overall

7.4

Boarding

7.7

Food

6.6

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Kevin,Dec 2025

BOS - EWR

Seems like every United flight has a delay and it’s always someone else’s fault. Step up and take some accountability

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 $628, United Airlines can have you in London from Billings in 11h 55m. 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
Southend-on-Sea
Harrow
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Winchester
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Orpington
Watford
Hayes
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Horley
Kingston upon Thames
Wembley
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Eastbourne

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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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$666Average$813FlexibilityNo cancel feeOn-time69%

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