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$610+ Cheap flights from Green Bay (GRB) 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 11/28. Fares are subject to change and may not be available on all flights or dates of travel.
GRB — LHR
Nov 24 — Dec 11
Mon 11/24
Mon 12/1
1 adult, Economy
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Cheap flight deals from Green Bay to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Green Bay (GRB) 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 October 25, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$610
(Netflights)

Popular in

November

Cheapest in

October

Average price

$662
Provider with most accurate pricing for Green Bay Austin-Straubel-London Heathrow flight deals.
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Provider most trusted by Cheapflights users for Green Bay Austin-Straubel-London Heathrow flights.
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From Green Bay Austin-Straubel to London Heathrow
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Highest demand for flights based on searches. 43% potential increase in price ($1,036 potential increase over avg. RT price).
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Cheapest flight prices on average. 36% potential price decrease ($355 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from Green Bay to Heathrow

Cheapest flights from Green Bay to Heathrow
Explore the most affordable flight options available from Green Bay to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 25, 2025.

This Netflights deal was found by Cheapflights users on 10/23. 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 Netflights is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/282:52 pmGRB - LHR
1 stop11h 53mVirgin Atlantic
Thu 12/412:30 pmLHR - GRB
1 stop16h 07mVirgin Atlantic
Deal found 10/23$610
This United Airlines deal was found by Cheapflights users on 10/24. 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 11/46:15 amGRB - LHR
1 stop17h 40mUnited Airlines
Tue 11/256:35 amLHR - GRB
2 stops18h 25mUnited Airlines
Deal found 10/24$628
This United Airlines deal was found by Cheapflights users on 10/24. 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 11/43:51 pmGRB - LHR
2 stops12h 59mMultiple Airlines
Tue 11/256:50 amLHR - GRB
2 stops14h 20mMultiple Airlines
Deal found 10/24$629
This KLM deal was found by Cheapflights users on 10/23. 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.
Fri 11/282:52 pmGRB - LHR
1 stop11h 53mMultiple Airlines
Thu 12/411:30 amLHR - GRB
2 stops15h 09mMultiple Airlines
Deal found 10/23$632
This KLM deal was found by Cheapflights users on 10/24. 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.
Fri 11/282:52 pmGRB - LHR
1 stop11h 53mKLM
Thu 12/411:45 amLHR - GRB
2 stops14h 54mKLM
Deal found 10/24$633
This Air France deal was found by Cheapflights users on 10/23. 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 12/711:11 amGRB - LHR
1 stop15h 34mAir France
Sun 12/1410:45 amLHR - GRB
1 stop17h 52mAir France
Deal found 10/23$642
This Air France deal was found by Cheapflights users on 10/23. 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 12/75:15 amGRB - LHR
1 stop20h 35mMultiple Airlines
Sun 12/1410:45 amLHR - GRB
1 stop17h 52mMultiple Airlines
Deal found 10/23$650
This United Airlines deal was found by Cheapflights users on 10/23. 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 12/73:51 pmGRB - LHR
1 stop10h 04mUnited Airlines
Sun 12/1412:05 pmLHR - GRB
2 stops15h 27mUnited Airlines
Deal found 10/23$702

Cheapflights Fare Finder

 
Customize your flight search to find flights from Green Bay 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 October 25, 2025.
Use the filters below to find and compare flights from Green Bay to London Heathrow Airport that are best for you.

Fly from

Green Bay

Fly to

Heathrow

Route

Depart

Return

Price

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Fri 11/28

2:52 pm-8:45 am

1 stop11h 53m

London Heathrow

Thu 12/4

12:30 pm-10:37 pm

1 stop16h 07m

$610

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Tue 11/4

6:15 am-5:55 am

1 stop17h 40m

London Heathrow

Tue 11/25

6:35 am-7:00 pm

2 stops18h 25m

$628

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Wed 1/21

11:53 am-7:05 am

1 stop13h 12m

London Heathrow

Mon 1/26

6:30 am-3:36 pm

2 stops15h 06m

$629

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Tue 11/4

3:51 pm-10:50 am

2 stops12h 59m

London Heathrow

Tue 11/25

6:50 am-3:10 pm

2 stops14h 20m

$629

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Wed 1/28

10:50 am-8:45 am

1 stop15h 55m

London Heathrow

Mon 2/2

11:45 am-8:41 pm

2 stops14h 56m

$629

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Fri 11/28

11:10 am-6:50 am

2 stops13h 40m

London Heathrow

Thu 12/4

11:30 am-8:39 pm

2 stops15h 09m

$632

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Fri 11/28

2:52 pm-8:45 am

1 stop11h 53m

London Heathrow

Thu 12/4

11:30 am-8:39 pm

2 stops15h 09m

$632

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Wed 1/28

10:50 am-6:55 am

2 stops14h 05m

London Heathrow

Mon 2/2

6:30 am-4:38 pm

2 stops16h 08m

$634

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Sun 12/7

11:11 am-8:45 am

1 stop15h 34m

London Heathrow

Sun 12/14

10:45 am-10:37 pm

1 stop17h 52m

$642

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Fri 1/23

7:00 am-7:05 am

2 stops18h 05m

London Heathrow

Tue 1/27

6:20 am-4:38 pm

2 stops16h 18m

$654

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/23

Compare providers for flights from Green Bay 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 Green Bay to Heathrow in October.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 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 Green Bay-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 Green Bay-London Heathrow Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Green Bay-London Heathrow Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Green Bay-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 Green Bay-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 Green Bay to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Green Bay 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 October 25, 2025.
See what other customers who have flown with United Airlines, American Airlines, and British Airways from Green Bay to London Heathrow Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,997 reviews

Boarding

7.7

Entertainment

7.1

Crew

8.1

Comfort

7.3

Food

6.6

Overall

7.4

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
United Airlines
7.4
Good
8,997 reviews
United Airlines
7.4
Good
8,997 reviews

Boarding

7.7

Entertainment

7.1

Crew

8.1

Comfort

7.3

Food

6.6

Overall

7.4

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
American Airlines
7.2
Good
11,032 reviews
United Airlines
7.4
Good
8,997 reviews

Boarding

7.7

Entertainment

7.1

Crew

8.1

Comfort

7.3

Food

6.6

Overall

7.4

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
British Airways
6.7
Okay
7,471 reviews
United Airlines
7.4
Good
8,997 reviews

Boarding

7.7

Entertainment

7.1

Crew

8.1

Comfort

7.3

Food

6.6

Overall

7.4

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.

Related info for your journey

Find useful and relevant information for your journey from Green Bay 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 Green Bay to London Heathrow?

    Most people fly from Green Bay Austin-Straubel (GRB) if they book a flight from Green Bay to London Heathrow. On average, Austin-Straubel has 0 outbound flights to London Heathrow per day from 3 airlines. Green Bay Austin-Straubel is conveniently located just 5.9 mi from Green Bay’s city center.

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

    A quick flight from Green Bay to London Heathrow Airport can take about 11h 53m. Virgin Atlantic provides one of the quickest options available for as low as $610. Airlines will cover a distance of 3833 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Green Bay to London Heathrow Airport round-trip?

    Cheapflights users have booked flights from Green Bay to London Heathrow Airport round-trip from $650. Other airlines that can offer you cheap pricing are American Airlines, from $701, and United Airlines, from $701. You may be able to fly from Green Bay to London Heathrow Airport for 51% less than the average price by searching for these airlines.

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

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

  • How can I find direct flights from Green Bay to Heathrow?

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

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

    Yes. Cheapflights offers flight deals from Green Bay 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
Hounslow
Ilford
Hayes
Southend-on-Sea
Harrow
Croydon
Eastleigh
Dartford
Dover
Winchester
Orpington
Northampton
Gatwick
Borehamwood
Broadway
Aylesbury
Bedford
Chipping Norton
Wembley
Folkestone

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Top 3 airlines flying from Green Bay to Heathrow

Discover the top 3 airlines that operate flights from Green Bay 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 October 25, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$650Average$779FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$701Average$867FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$701Average$1,401FlexibilityNo cancel feeOn-time71%

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