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Cheap flights from Green Bay to London from £403

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/8. Fares are subject to change and may not be available on all flights or dates of travel.
GRB — LON
12 May — 19 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Green Bay to London

Enter your travel dates to find the best prices.

Cheapest flights from Green Bay to London
Explore the most affordable flight options available from Green Bay to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 April 2026.

Mon 20/408:00
GRB
-
LHR
1 stop18h 30m
United Airlines
Wed 29/407:25
LHR
-
GRB
2 stops15h 33m
United Airlines
Deal found 9/4£648
Sun 13/906:30
GRB
-
LHR
1 stop18h 15m
United Airlines
Wed 23/906:50
LHR
-
GRB
2 stops23h 38m
United Airlines
Deal found 11/4£649
Mon 20/415:47
GRB
-
LHR
2 stops12h 13m
United Airlines
Thu 30/407:25
LHR
-
GRB
2 stops15h 25m
United Airlines
Deal found 9/4£651
Wed 22/408:00
GRB
-
LHR
2 stops15h 55m
United Airlines
Thu 30/407:25
LHR
-
GRB
2 stops15h 25m
United Airlines
Deal found 9/4£651
Sun 9/808:00
GRB
-
LHR
1 stop16h 45m
United Airlines
Thu 20/807:30
LHR
-
GRB
2 stops17h 37m
United Airlines
Deal found 10/4£658
Sun 13/918:29
GRB
-
LHR
1 stop11h 46m
Iberia
Wed 23/906:15
LHR
-
GRB
2 stops22h 52m
Iberia
Deal found 9/4£660
Tue 11/814:30
GRB
-
LHR
2 stops14h 10m
United Airlines
Fri 21/807:30
LHR
-
GRB
2 stops17h 37m
United Airlines
Deal found 10/4£661
Sat 8/817:30
GRB
-
LHR
1 stop31h 15m
United Airlines
Thu 20/807:30
LHR
-
GRB
2 stops17h 37m
United Airlines
Deal found 10/4£662
Fri 1/509:42
GRB
-
LGW
2 stops19h 08m
Iberia
Sun 3/520:40
LGW
-
GRB
2 stops31h 18m
Iberia
Deal found 8/4£723
Thu 23/409:42
GRB
-
LGW
2 stops19h 08m
Iberia
Fri 1/520:40
LGW
-
GRB
2 stops31h 18m
Iberia
Deal found 9/4£724
Mon 7/920:30
GRB
-
LCY
2 stops15h 25m
Lufthansa
Fri 25/909:15
LCY
-
GRB
2 stops19h 34m
Lufthansa
Deal found 10/4£796
Sun 6/917:25
GRB
-
LGW
2 stops16h 35m
Delta
Sun 20/910:25
LGW
-
GRB
2 stops17h 33m
Delta
Deal found 7/4£801

Find flight deals from Green Bay to London

Discover tips and strategies to find the most affordable flight options for your journey from Green Bay (GRB) 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 12 April 2026.

Round-trip from

£649

One-way from

£403

Popular in

October

Cheapest in

January

Average price

£554
United Airlines
  • United Airlines
  • 13/9-23/9
  • 3 total stops
  • 41h 53m total
  • Green Bay to London
Search Deals
United Airlines
  • United Airlines
  • 12/8
  • 2 total stops
  • 16h 46m total
  • Green Bay to London
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (£57 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease (£38 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Green Bay 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 858,174 searches. Data last updated 12 April 2026.
Use the filters below to find and compare flights from Green Bay to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Sun 13/9

14:30-10:00

2 stops13h 30m

London Heathrow

Wed 23/9

07:30-19:07

2 stops17h 37m

£660

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Sat 8/8

17:30-06:45

1 stop31h 15m

London Heathrow

Thu 20/8

07:30-19:07

2 stops17h 37m

£662

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Wed 22/4

10:40-05:55

2 stops13h 15m

London Heathrow

Tue 28/4

11:05-16:58

1 stop11h 53m

£672

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Sun 6/9

18:37-10:30

1 stop9h 53m

London Heathrow

Sun 20/9

19:20-23:07

2 stops33h 47m

£700

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Sun 6/9

06:30-06:30

2 stops18h 00m

London Heathrow

Sun 20/9

09:30-22:59

2 stops19h 29m

£711

Green BayLondon

GRB - LGW

GRBLGW

Green Bay Austin-Straubel

Fri 1/5

09:42-10:50

2 stops19h 08m

London Gatwick

Sun 3/5

20:40-21:58

2 stops31h 18m

£723
Fastest return journey

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Sun 6/9

18:37-10:30

1 stop9h 53m

London Heathrow

Sun 20/9

12:15-17:40

1 stop11h 25m

£724

Green BayLondon

GRB - LGW

GRBLGW

Green Bay Austin-Straubel

Thu 23/4

09:42-10:50

2 stops19h 08m

London Gatwick

Fri 1/5

20:40-21:58

2 stops31h 18m

£724

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Wed 13/5

08:00-06:30

2 stops16h 30m

London Heathrow

Sat 23/5

08:00-19:10

1 stop17h 10m

£773

Green BayLondon

GRB - LGW

GRBLGW

Green Bay Austin-Straubel

Sun 6/9

17:25-16:00

2 stops16h 35m

London Gatwick

Sun 20/9

10:25-21:58

2 stops17h 33m

£801

Flights are sorted by cheapest return flights first.

Deals found on 8/4

Showing 1-10 of 30 resultsSorted by cheapest first
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Best time to book a flight from Green Bay to London

Have a flexible travel schedule? Discover the best time to fly to London from Green Bay with our price prediction graph.
Estimated return 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 Green Bay to London

What is the cheapest month to book a flight from Green Bay to London?

Currently, October is the cheapest month in which you can book a flight from Green Bay to London (average of £483). Flying from Green Bay to London in June is currently the most expensive (average of £966). 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.

How much does it cost for a return flight from Green Bay to London?

Related info for your journey

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

    For a flight from Green Bay to London, you will be flying from Austin-Straubel. Green Bay Austin-Straubel (GRB) is just 5.9 mi from the center of the city. Austin-Straubel is the only Green Bay airport and it handles 0 outbound flights to London per day. 0 airlines have flights to London from Green Bay Austin-Straubel on a regular basis.

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

    Departing from Green Bay to London will take you 16h 35m. The distance between Green Bay and London is about 3854 mi. Both multi-stop and direct flights can be found to your destination and back.

  • What are the most popular routes from Green Bay to London?

    The most popular route from Green Bay to London is Green Bay Austin-Straubel - London Heathrow. You may also consider Green Bay Austin-Straubel - London City or Green Bay Austin-Straubel - London Gatwick.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Green Bay 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.

  • What is the cheapest month to book a flight from Green Bay to London?

    Currently, October is the cheapest month in which you can book a flight from Green Bay to London (average of £483). Flying from Green Bay to London in June is currently the most expensive (average of £966). 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

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
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Croydon
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Luton
Gatwick
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Hayes
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Kingston upon Thames
Romford
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Ipswich
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Need flexible booking options for your flight to London from Green Bay? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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