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Heathrow

$647+ 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 4/15. Fares are subject to change and may not be available on all flights or dates of travel.
BIL — LHR
Mar 20 — Mar 271
Fri 3/20
Fri 3/27
1 adult, Economy
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Cheap 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 February 18, 2026.

This Cheapflightsfares deal was found by Cheapflights users on 2/14. 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 4/152:35 pm
BIL
-
LHR
2 stops20h 05m
Lufthansa
Wed 4/227:30 am
LHR
-
BIL
2 stops20h 27m
Lufthansa
Deal found 2/14$647
This BusinessClass deal was found by Cheapflights users on 2/14. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/56:21 pm
BIL
-
LHR
1 stop32h 39m
Scandinavian Airlines
Tue 4/1411:45 am
LHR
-
BIL
2 stops54h 08m
Scandinavian Airlines
Deal found 2/14$649
This United Airlines deal was found by Cheapflights users on 2/15. 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 5/25:51 pm
BIL
-
LHR
2 stops29h 39m
United Airlines
Thu 5/147:25 am
LHR
-
BIL
2 stops33h 13m
United Airlines
Deal found 2/15$652
This Air France deal was found by Cheapflights users on 2/14. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/56:25 am
BIL
-
LHR
2 stops17h 20m
Multiple Airlines
Tue 4/148:40 am
LHR
-
BIL
2 stops18h 26m
Multiple Airlines
Deal found 2/14$653
This Delta deal was found by Cheapflights users on 2/13. 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 5/136:25 am
BIL
-
LHR
2 stops21h 55m
Delta
Wed 5/206:30 am
LHR
-
BIL
2 stops23h 33m
Delta
Deal found 2/13$654
This United Airlines deal was found by Cheapflights users on 2/14. 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 4/152:35 pm
BIL
-
LHR
1 stop12h 05m
United Airlines
Wed 4/229:30 am
LHR
-
BIL
2 stops18h 27m
United Airlines
Deal found 2/14$660
This Air Canada deal was found by Cheapflights users on 2/13. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/135:05 am
BIL
-
LHR
2 stops18h 30m
Air Canada
Tue 5/199:30 am
LHR
-
BIL
2 stops42h 27m
Air Canada
Deal found 2/13$666
This United Airlines deal was found by Cheapflights users on 2/13. 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 5/132:30 pm
BIL
-
LHR
1 stop12h 10m
United Airlines
Wed 5/202:50 pm
LHR
-
BIL
1 stop13h 07m
United Airlines
Deal found 2/13$678
This Virgin Atlantic deal was found by Cheapflights users on 2/15. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/1711:33 am
BIL
-
LHR
2 stops21h 02m
Virgin Atlantic
Fri 4/246:30 am
LHR
-
BIL
2 stops20h 36m
Virgin Atlantic
Deal found 2/15$703
This Booking.com deal was found by Cheapflights users on 2/14. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/1810:38 am
BIL
-
LHR
2 stops36h 52m
Multiple Airlines
Sat 4/258:25 pm
LHR
-
BIL
2 stops31h 32m
Multiple Airlines
Deal found 2/14$704
This United Airlines deal was found by Cheapflights users on 2/15. 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.
Fri 4/1710:38 am
BIL
-
LHR
1 stop16h 02m
United Airlines
Fri 4/249:30 am
LHR
-
BIL
2 stops18h 27m
United Airlines
Deal found 2/15$710

Find 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 February 18, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$647
(Cheapflightsfares)
Provider with most accurate pricing for Billings Logan Intl-London Heathrow flight deals.
Search Deals
Provider most trusted by Cheapflights users for Billings Logan Intl-London Heathrow flights.
Search Deals
From Billings Logan Intl to London Heathrow
Search Deals

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 February 18, 2026.
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

Sat 5/2

5:51 pm-6:30 am

2 stops29h 39m

London Heathrow

Thu 5/14

7:25 am-9:38 am

2 stops33h 13m

$652

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Sun 4/5

6:25 am-6:45 am

2 stops17h 20m

London Heathrow

Tue 4/14

8:40 am-8:06 pm

2 stops18h 26m

$653

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Wed 5/13

6:25 am-11:20 am

2 stops21h 55m

London Heathrow

Wed 5/20

6:30 am-11:03 pm

2 stops23h 33m

$654

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Wed 5/13

5:05 am-9:40 am

1 stop21h 35m

London Heathrow

Tue 5/19

11:25 am-8:57 pm

1 stop16h 32m

$678

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Sun 4/5

2:35 pm-9:40 am

1 stop12h 05m

London Heathrow

Tue 4/14

11:25 am-8:57 pm

1 stop16h 32m

$678

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Wed 5/13

5:05 am-6:30 am

2 stops18h 25m

London Heathrow

Wed 5/20

11:25 am-8:57 pm

1 stop16h 32m

$681

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Fri 4/17

11:33 am-3:35 pm

2 stops21h 02m

London Heathrow

Fri 4/24

6:30 am-8:06 pm

2 stops20h 36m

$703

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Fri 4/17

10:38 am-9:40 am

1 stop16h 02m

London Heathrow

Fri 4/24

9:30 am-8:57 pm

2 stops18h 27m

$710

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Wed 5/13

5:05 am-6:30 am

2 stops18h 25m

London Heathrow

Thu 5/21

7:25 am-10:51 pm

2 stops22h 26m

$738

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/15

Compare providers for flights from Billings to Heathrow

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 Heathrow in February.
ProviderPrice AccuracyTrust Score*
OvagoPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 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 Heathrow Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Billings-London Heathrow Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Billings-London Heathrow Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Billings-London Heathrow Airport flights, Cheapflights users trust FlightHub the most. FlightHub 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 Heathrow Airport 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 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 February 18, 2026.
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
9,312 reviews

Overall

7.4

Food

6.6

Boarding

7.7

Crew

8.1

Entertainment

7.1

Comfort

7.3

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
9,312 reviews
United Airlines
7.4
Good
9,312 reviews

Overall

7.4

Food

6.6

Boarding

7.7

Crew

8.1

Entertainment

7.1

Comfort

7.3

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 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?

    United Airlines and Delta can get you from Billings to London Heathrow Airport in just under 21h 55m. Your travel time can differ by up to 7h 44m. 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 $666, was found to be the cheapest airline from Billings to London Heathrow Airport..

  • 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.

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
Ilford
Croydon
Hounslow
Southend-on-Sea
Harrow
Eastleigh
Gatwick
Dartford
Dover
Winchester
Orpington
Northampton
Watford
Hayes
Borehamwood
Broadway
Aylesbury
Chipping Norton
Horley
Kingston upon Thames

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 February 18, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$666Average$933FlexibilityNo cancel feeOn-time69%

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