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Cheap flights from Green Bay to London from £488

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 25/8. Fares are subject to change and may not be available on all flights or dates of travel.
GRB — LON
29 Mar — 5 Apr1
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 27 February 2026.

Tue 25/810:45
GRB
-
LHR
2 stops14h 10m
United Airlines
Tue 1/907:25
LHR
-
GRB
2 stops21h 20m
United Airlines
Deal found 23/2£488
Mon 20/714:35
GRB
-
LHR
2 stops16h 15m
United Airlines
Thu 27/807:25
LHR
-
GRB
2 stops21h 20m
United Airlines
Deal found 25/2£492
Mon 20/711:53
GRB
-
LHR
1 stop19h 12m
Delta
Fri 28/806:30
LHR
-
GRB
2 stops20h 56m
Delta
Deal found 25/2£494
Mon 20/715:44
GRB
-
LHR
2 stops19h 21m
United Airlines
Fri 28/807:30
LHR
-
GRB
2 stops19h 34m
United Airlines
Deal found 25/2£500
Mon 24/813:11
GRB
-
LHR
1 stop11h 34m
United Airlines
Tue 1/908:00
LHR
-
GRB
1 stop14h 43m
United Airlines
Deal found 23/2£506
Mon 20/714:59
GRB
-
LHR
1 stop12h 06m
American Airlines
Fri 28/811:10
LHR
-
GRB
1 stop12h 57m
American Airlines
Deal found 25/2£506
Tue 24/215:44
GRB
-
LHR
1 stop10h 11m
United Airlines
Sun 1/306:50
LHR
-
GRB
2 stops14h 19m
United Airlines
Deal found 23/2£510
Tue 25/806:45
GRB
-
LHR
2 stops17h 35m
Delta
Wed 2/906:30
LHR
-
GRB
2 stops16h 03m
Delta
Deal found 23/2£512
Tue 25/820:25
GRB
-
LCY
2 stops15h 30m
Lufthansa
Tue 1/909:15
LCY
-
GRB
2 stops19h 30m
Lufthansa
Deal found 24/2£614
Wed 12/817:25
GRB
-
LGW
2 stops16h 35m
Delta
Wed 19/810:25
LGW
-
GRB
2 stops17h 33m
Delta
Deal found 24/2£664
Tue 11/818:37
GRB
-
LCY
2 stops36h 33m
British Airways
Tue 18/808:10
LCY
-
GRB
2 stops45h 18m
British Airways
Deal found 25/2£695
Fri 24/418:12
GRB
-
LGW
2 stops15h 48m
Delta
Fri 1/510:25
LGW
-
GRB
2 stops18h 36m
Delta
Deal found 24/2£700

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 27 February 2026.

Round-trip from

£488

Popular in

July

Cheapest in

January
United Airlines
  • United Airlines
  • 25/8-1/9
  • 4 total stops
  • 35h 30m total
  • Green Bay to London
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (£49 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£21 potential savings vs. average return price).
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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 27 February 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

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Mon 24/8

13:11-06:45

1 stop11h 34m

London Heathrow

Tue 1/9

08:00-16:43

1 stop14h 43m

£506

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Sat 9/5

15:48-06:45

1 stop32h 57m

London Heathrow

Mon 18/5

17:50-19:01

2 stops31h 11m

£506

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Tue 25/8

10:45-06:55

2 stops14h 10m

London Heathrow

Tue 1/9

08:00-16:43

1 stop14h 43m

£509

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Thu 9/4

06:30-10:00

2 stops21h 30m

London Heathrow

Thu 16/4

09:30-10:00

2 stops30h 30m

£528

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Sun 23/8

18:37-11:15

1 stop10h 38m

London Heathrow

Mon 7/9

09:45-18:07

1 stop14h 22m

£543

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Tue 25/8

10:50-07:15

2 stops14h 25m

London Heathrow

Wed 2/9

13:25-21:58

1 stop14h 33m

£548

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Mon 24/8

16:00-13:05

1 stop15h 05m

London Heathrow

Wed 2/9

06:30-16:33

2 stops16h 03m

£567

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Sun 23/8

20:25-06:45

1 stop28h 20m

London Heathrow

Mon 7/9

14:05-13:55

2 stops29h 50m

£569

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Thu 16/7

11:53-13:05

1 stop19h 12m

London Heathrow

Fri 28/8

11:15-21:58

1 stop16h 43m

£576

Green BayLondon

GRB - LCY

GRBLCY

Green Bay Austin-Straubel

Tue 25/8

20:25-17:55

2 stops15h 30m

London City

Tue 1/9

09:15-22:45

2 stops19h 30m

£614

Flights are sorted by cheapest return flights first.

Deals found on 23/2

Showing 1-10 of 25 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 £481). Flying from Green Bay to London in June is currently the most expensive (average of £961). 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.

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 11h 34m. The distance between Green Bay and London is about 3833 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 £481). Flying from Green Bay to London in June is currently the most expensive (average of £961). 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
Wembley
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Gatwick
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Hounslow
Ilford
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