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$704+ Cheap flights from Billings (BIL) to Heathrow (LHR)

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 10/9. Fares are subject to change and may not be available on all flights or dates of travel.
BIL — LHR
ago. 23 — ago. 301
sáb. 8/23
sáb. 8/30
1 adult, Economy
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Cheap flight deals from Billings to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Billings (BIL) to Heathrow (LHR). 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 agosto 18, 2025.

Round-trip from

$704
(Delta)

Popular in

July

Cheapest in

February

Average price

$748
From Billings Logan Intl to London Heathrow
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($191 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($57 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Billings to Heathrow

Cheapest flights from Billings to Heathrow
Explore the most affordable flight options available from Billings to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on agosto 18, 2025.

This Delta deal was found by Cheapflights users on 8/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/96:25 amBIL - LHR
2 stops21h 05mDelta
mié. 10/156:30 amLHR - BIL
2 stops17h 46mDelta
Deal found 8/18$704
This United Airlines deal was found by Cheapflights users on 8/17. 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.
mié. 10/110:39 amBIL - LHR
1 stop16h 01mUnited Airlines
mié. 10/87:25 amLHR - BIL
2 stops33h 10mUnited Airlines
Deal found 8/17$741
This United Airlines deal was found by Cheapflights users on 8/17. 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.
jue. 10/95:00 amBIL - LHR
2 stops19h 40mUnited Airlines
mié. 10/153:50 pmLHR - BIL
2 stops35h 59mUnited Airlines
Deal found 8/17$789
This American Airlines deal was found by Cheapflights users on 8/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/93:44 pmBIL - LHR
1 stop14h 16mMultiple Airlines
mié. 10/159:50 amLHR - BIL
1 stop21h 18mMultiple Airlines
Deal found 8/16$801
This Ovago deal was found by Cheapflights users on 8/16. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 9/1410:54 amBIL - LHR
1 stop15h 46mLufthansa
vie. 9/197:25 amLHR - BIL
2 stops16h 51mLufthansa
Deal found 8/16$1,593

Cheapflights Fare Finder

 
Customize your flight search to find flights from Billings to Heathrow 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 agosto 18, 2025.
Use the filters below to find and compare flights from Billings to London Heathrow Airport that are best for you.

Fly from

Billings

Fly to

Heathrow

Route

Depart

Return

Price

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

jue. 10/9

6:25 am-10:30 am

2 stops21h 05m

London Heathrow

mié. 10/15

6:30 am-5:16 pm

2 stops17h 46m

$704

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

mié. 10/1

10:39 am-9:40 am

1 stop16h 01m

London Heathrow

mié. 10/8

7:25 am-9:35 am

2 stops33h 10m

$741

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

jue. 10/9

5:00 am-7:40 am

2 stops19h 40m

London Heathrow

mié. 10/15

3:50 pm-8:49 pm

2 stops35h 59m

$789

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

jue. 10/9

3:44 pm-1:00 pm

1 stop14h 16m

London Heathrow

mié. 10/15

9:50 am-12:08 am

1 stop21h 18m

$801

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

jue. 10/9

12:20 pm-10:30 am

1 stop15h 10m

London Heathrow

mié. 10/15

12:00 pm-9:53 pm

1 stop16h 53m

$801

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/18

Best time to book a flight from Billings to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow 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.

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated agosto 18, 2025.
Read reviews from past customers who have flown United Airlines from Billings to London Heathrow Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,925 reviews

Food

6.6

Comfort

7.3

Crew

8.1

Entertainment

7.1

Boarding

7.7

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,925 reviews
United Airlines
7.4
Good
8,925 reviews

Food

6.6

Comfort

7.3

Crew

8.1

Entertainment

7.1

Boarding

7.7

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Related info for your journey

Find useful and relevant information for your journey from Billings to Heathrow. 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 Heathrow?

    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 Heathrow. 1 airline have flights from Billings Logan Intl to London Heathrow on a regular basis. Booking flights from Billings Logan Intl to London Heathrow should not be difficult; the airport handles an average of 0 outbound flights to London Heathrow per day.

  • How long is the flight from Billings to London Heathrow Airport?

    Delta and United Airlines can get you from Billings to London Heathrow Airport in just under 16h 01m. Your travel time can differ by up to 5h 04m. Airlines will cover a distance of 4473 mi. 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 Heathrow Airport round-trip?

    United Airlines, at $686, was found to be the cheapest airline from Billings to London Heathrow Airport.. You may be able to fly from Billings to London Heathrow Airport for 31% less than the average price by searching for this airline.

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

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

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

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

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

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

  • What is the cheapest month to book a flight from Billings to London Heathrow Airport?

    Currently, November is the cheapest month in which you can book a flight from Billings to London Heathrow Airport (average of $661). Flying from Billings to London Heathrow Airport in June is currently the most expensive (average of $1,097). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Hounslow
Hayes
Thornton Heath
Harrow
Canterbury
Dartford
Dover
Stratford-upon-Avon
Orpington
Watford
Northampton
Gatwick
Borehamwood
Broadway
Aylesbury
Chelmsford
Southend-on-Sea
Folkestone
Chichester
Swindon

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Billings to Heathrow

Discover the top airline that operate flights from Billings to Heathrow. 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 agosto 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$686Average$813FlexibilityNo cancel feeOn-time69%

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