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Heathrow

$339+ Cheap flights from Green Bay (GRB) to Heathrow (LHR)

GRB — LHR
Dec 8 — Dec 151
Tue 12/8
Tue 12/15
1 adult, Economy
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Cheap flight deals from Green Bay to Heathrow

Cheapest flights from Green Bay to Heathrow

Wed 11/1811:08 am -
1 stop14h 37m
Tue 11/246:30 am -
2 stops20h 05m
Deal found 11/7$974
Wed 11/187:00 am -
1 stop18h 45m
Tue 11/2412:40 pm -
1 stop15h 49m
Deal found 11/7$1,004
Fri 11/612:29 pm -
1 stop12h 36m
Tue 11/106:30 am -
2 stops21h 34m
Deal found 11/5$1,024
Fri 11/612:29 pm -
1 stop12h 36m
Thu 11/1211:20 am -
1 stop15h 15m
Deal found 11/5$1,053
Fri 11/611:04 am -
2 stops14h 51m
Fri 11/139:40 am -
2 stops18h 49m
Deal found 11/5$1,058
Fri 11/612:29 pm -
1 stop12h 36m
Mon 11/166:30 am -
2 stops21h 34m
Deal found 11/5$1,074
Thu 11/126:00 am -
2 stops19h 45m
Mon 11/168:40 am -
2 stops19h 49m
Deal found 11/8$1,079
Fri 11/67:00 am -
1 stop18h 45m
Sun 11/156:20 am -
2 stops17h 06m
Deal found 11/5$1,081

Find flight deals from Green Bay to Heathrow

Most accurate provider

Ovago
3 stars

Most trusted provider

Ovago
3 stars

Round-trip from

$818
(United Airlines)

One-way from

$339
(Delta)

Popular in

December

Cheapest in

January

Average price

$862
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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One-way flight from Green Bay Austin-Straubel to London Heathrow
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Highest demand for flights based on searches. 9% potential increase in price ($120 potential increase over avg. RT price).
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Cheapest flight prices on average. 9% potential price decrease ($100 potential savings vs. average RT price).
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Average for round-trip flights in November 2026
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Green Bay to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

Green BayLondon

GRB Green Bay Austin-Straubel - LHR London Heathrow

GRBLHR

Green Bay Austin-Straubel

Tue 4/20

12:30 pm-1:05 pm

1 stop18h 35m

London Heathrow

Wed 12/31

12:00 am-5:00 pm

Nonstop0h 00m

$339

Green BayLondon

GRB Green Bay Austin-Straubel - LHR London Heathrow

GRBLHR

Green Bay Austin-Straubel

Sun 2/28

7:00 pm-7:55 am

1 stop30h 55m

London Heathrow

Wed 3/3

6:50 am-10:59 pm

2 stops22h 09m

$818

Green BayLondon

GRB Green Bay Austin-Straubel - LHR London Heathrow

GRBLHR

Green Bay Austin-Straubel

Tue 4/20

5:30 am-7:25 am

1 stop19h 55m

London Heathrow

Mon 4/26

6:30 am-3:54 pm

2 stops15h 24m

$953

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/4

Sorted by cheapest first

Compare providers for flights from Green Bay to Heathrow

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 November.
ProviderPrice AccuracyTrust Score*
OvagoPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy1 starTrust 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 Ovago to be most consistent on Cheapflights vs. Ovago Users can find the same prices on Green Bay-London Heathrow Airport flight deals on Cheapflights vs. Ovago >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 Ovago the most. Ovago 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

Reviews of airlines servicing Heathrow

See what other customers who have flown with United Airlines,American Airlines, andBritish 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
7.3
Good
10,470 reviews

Entertainment

7.1

Overall

7.3

Boarding

7.7

Comfort

7.3

Crew

8.1

Food

6.7

Reviews

1 / 20
8.0
Excellent

Asha,Sep 2026

LGA - IAH

The flight was on time and boardi g was very organized and timely. Snacks are awful and having one little glass of juice was terrible. Fortunately, I had my water to keep me hydrated.
United Airlines
7.3
Good
10,470 reviews
United Airlines
7.3
Good
10,470 reviews

Entertainment

7.1

Overall

7.3

Boarding

7.7

Comfort

7.3

Crew

8.1

Food

6.7

Reviews

1 / 20
8.0
Excellent

Asha,Sep 2026

LGA - IAH

The flight was on time and boardi g was very organized and timely. Snacks are awful and having one little glass of juice was terrible. Fortunately, I had my water to keep me hydrated.
American Airlines
7.0
Good
12,230 reviews
United Airlines
7.3
Good
10,470 reviews

Entertainment

7.1

Overall

7.3

Boarding

7.7

Comfort

7.3

Crew

8.1

Food

6.7

Reviews

1 / 20
8.0
Excellent

Asha,Sep 2026

LGA - IAH

The flight was on time and boardi g was very organized and timely. Snacks are awful and having one little glass of juice was terrible. Fortunately, I had my water to keep me hydrated.
British Airways
6.7
Okay
8,285 reviews
United Airlines
7.3
Good
10,470 reviews

Entertainment

7.1

Overall

7.3

Boarding

7.7

Comfort

7.3

Crew

8.1

Food

6.7

Reviews

1 / 20
8.0
Excellent

Asha,Sep 2026

LGA - IAH

The flight was on time and boardi g was very organized and timely. Snacks are awful and having one little glass of juice was terrible. Fortunately, I had my water to keep me hydrated.

Related info for your journey

  • 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 19h 55m. United Airlines provides one of the quickest options available for as low as $953. 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 $676. Other airlines that can offer you cheap pricing are British Airways, from $754, and United Airlines, from $767. You may be able to fly from Green Bay to London Heathrow Airport for 40% 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
Ilford
Dorking
Gatwick
Hounslow
Wembley
Harrow
Southend-on-Sea
Basingstoke
Watford
Northampton
Dartford
Winchester
Croydon
Kingston upon Thames
Chipping Norton
Slough
Eastbourne
Stansted
Sutton
Luton

Browse thousands of different options on Cheapflights for your next trip

Top 3 airlines flying from Green Bay to Heathrow

AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$676Average$1,018FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$754Average$911FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$767Average$920FlexibilityNo cancel feeOn-time69%

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