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$624+ 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 8/19. Fares are subject to change and may not be available on all flights or dates of travel.
BIL — LON
Feb 17 — Feb 241
Tue 2/17
Tue 2/24
1 adult, Economy
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Cheap 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 January 18, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$643
(United Airlines)
Provider with most accurate pricing for Billings Logan Intl-London (LON) flight deals.
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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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Find 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 January 18, 2026.

This Finnair deal was found by Cheapflights users on 1/17. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/191:58 pm
BIL
-
LHR
1 stop13h 57m
Multiple Airlines
Wed 9/212:55 pm
LHR
-
BIL
1 stop15h 35m
Multiple Airlines
Deal found 1/17$624
This United Airlines deal was found by Cheapflights users on 1/15. 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.
Sat 2/142:35 pm
BIL
-
LHR
1 stop12h 05m
United Airlines
Sat 2/2111:10 am
LHR
-
BIL
2 stops37h 02m
United Airlines
Deal found 1/15$643
This Expedia deal was found by Cheapflights users on 1/16. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/147:00 am
BIL
-
LHR
2 stops21h 50m
Air Canada
Sat 2/211:00 pm
LHR
-
BIL
2 stops39h 21m
Air Canada
Deal found 1/16$651
This FlightHub deal was found by Cheapflights users on 1/17. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/192:40 pm
BIL
-
LHR
2 stops20h 00m
Lufthansa
Wed 9/26:55 am
LHR
-
BIL
2 stops20h 56m
Lufthansa
Deal found 1/17$652
This United Airlines deal was found by Cheapflights users on 1/17. 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 8/192:40 pm
BIL
-
LHR
1 stop12h 00m
United Airlines
Wed 9/21:40 pm
LHR
-
BIL
2 stops34h 39m
United Airlines
Deal found 1/17$656
This Finnair deal was found by Cheapflights users on 1/16. 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.
Sat 2/141:48 pm
BIL
-
LHR
1 stop15h 27m
Multiple Airlines
Sat 2/212:25 pm
LHR
-
BIL
1 stop16h 10m
Multiple Airlines
Deal found 1/16$659
This KLM deal was found by Cheapflights users on 1/16. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/1411:45 am
BIL
-
LHR
2 stops14h 20m
KLM
Sat 2/2111:05 am
LHR
-
BIL
1 stop15h 34m
KLM
Deal found 1/16$663
This Finnair deal was found by Cheapflights users on 1/16. 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.
Thu 4/166:07 am
BIL
-
LHR
1 stop21h 48m
Multiple Airlines
Thu 4/2312:55 pm
LHR
-
BIL
1 stop16h 48m
Multiple Airlines
Deal found 1/16$678
This United Airlines deal was found by Cheapflights users on 1/16. 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.
Thu 4/1610:38 am
BIL
-
LHR
1 stop16h 02m
United Airlines
Thu 4/237:25 am
LHR
-
BIL
2 stops33h 15m
United Airlines
Deal found 1/16$696
This United Airlines deal was found by Cheapflights users on 1/17. 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 2/47:10 am
BIL
-
LHR
1 stop19h 30m
United Airlines
Sun 2/811:35 am
LHR
-
BIL
1 stop16h 48m
United Airlines
Deal found 1/17$708
This Expedia deal was found by Cheapflights users on 1/16. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/162:35 pm
BIL
-
LCY
2 stops20h 20m
Lufthansa
Thu 4/239:15 am
LCY
-
BIL
2 stops18h 42m
Lufthansa
Deal found 1/16$752
This Orbitz deal was found by Cheapflights users on 1/17. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/192:40 pm
BIL
-
LCY
2 stops20h 15m
Lufthansa
Wed 9/29:15 am
LCY
-
BIL
2 stops18h 36m
Lufthansa
Deal found 1/17$776

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 January 18, 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

Sat 2/14

2:35 pm-9:40 am

1 stop12h 05m

London Heathrow

Sat 2/21

11:10 am-5:12 pm

2 stops37h 02m

$643

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Sat 2/14

7:00 am-11:50 am

2 stops21h 50m

London Heathrow

Sat 2/21

1:00 pm-9:21 pm

2 stops39h 21m

$651

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Sat 2/14

1:48 pm-12:15 pm

1 stop15h 27m

London Heathrow

Sat 2/21

2:25 pm-11:35 pm

1 stop16h 10m

$659

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Sat 2/14

11:45 am-9:05 am

2 stops14h 20m

London Heathrow

Sat 2/21

11:05 am-7:39 pm

1 stop15h 34m

$663

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Thu 4/16

10:38 am-10:00 am

2 stops40h 22m

London Heathrow

Thu 4/23

7:25 am-8:57 pm

2 stops20h 32m

$690

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Thu 4/16

10:38 am-9:40 am

1 stop16h 02m

London Heathrow

Thu 4/23

7:25 am-9:40 am

2 stops33h 15m

$696

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Sat 2/14

1:48 pm-11:40 am

1 stop14h 52m

London Heathrow

Sat 2/21

8:20 am-10:12 pm

1 stop20h 52m

$708

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Wed 2/4

7:10 am-9:40 am

1 stop19h 30m

London Heathrow

Sun 2/8

11:35 am-9:23 pm

1 stop16h 48m

$708

BillingsLondon

BIL - LCY

BILLCY

Billings Logan Intl

Thu 4/16

2:35 pm-5:55 pm

2 stops20h 20m

London City

Thu 4/23

9:15 am-8:57 pm

2 stops18h 42m

$752

BillingsLondon

BIL - LCY

BILLCY

Billings Logan Intl

Sun 5/31

6:25 pm-4:40 pm

2 stops15h 15m

London City

Thu 6/11

9:20 am-10:37 pm

2 stops20h 17m

$1,226

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/15

Showing 1-10 of 12 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 January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
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 January 18, 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
9,174 reviews

Comfort

7.3

Overall

7.4

Food

6.6

Boarding

7.7

Crew

8.1

Entertainment

7.1

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
9,174 reviews
United Airlines
7.4
Good
9,174 reviews

Comfort

7.3

Overall

7.4

Food

6.6

Boarding

7.7

Crew

8.1

Entertainment

7.1

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 $643, United Airlines can have you in London from Billings in 12h 05m. 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
Eastleigh
Gatwick
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Croydon
Orpington
Watford
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Borehamwood
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Chipping Norton
Horley
Kingston upon Thames
Eastbourne
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 January 18, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$666Average$803FlexibilityNo cancel feeOn-time69%

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