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$884+ Cheap flights from Green Bay (GRB) to London (LON)

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 9/22. Fares are subject to change and may not be available on all flights or dates of travel.
GRB — LON
Aug 12 — Aug 191
Wed 8/12
Wed 8/19
1 adult, Economy
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Cheap flight deals from Green Bay to London

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 July 13, 2026.

This Delta deal was found by Cheapflights users on 7/8. 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.
Tue 9/227:00 am
GRB
-
LHR
1 stop18h 10m
Delta
Tue 10/136:30 am
LHR
-
GRB
2 stops13h 58m
Delta
Deal found 7/8$884
This KLM deal was found by Cheapflights users on 7/8. 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.
Tue 9/2211:02 am
GRB
-
LHR
1 stop14h 08m
KLM
Tue 10/1310:45 am
LHR
-
GRB
1 stop12h 35m
KLM
Deal found 7/8$913
This Iberia deal was found by Cheapflights users on 7/12. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/267:02 pm
GRB
-
LHR
1 stop11h 13m
Iberia
Wed 9/26:15 am
LHR
-
GRB
2 stops24h 01m
Iberia
Deal found 7/12$931
This Delta deal was found by Cheapflights users on 7/9. 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 9/231:10 pm
GRB
-
LHR
1 stop18h 05m
Delta
Mon 9/286:30 am
LHR
-
GRB
2 stops21h 05m
Delta
Deal found 7/9$934
This United Airlines deal was found by Cheapflights users on 7/8. 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 9/158:05 am
GRB
-
LHR
1 stop18h 55m
United Airlines
Fri 10/26:50 am
LHR
-
GRB
2 stops14h 03m
United Airlines
Deal found 7/8$935
This United Airlines deal was found by Cheapflights users on 7/11. 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 9/133:42 pm
GRB
-
LHR
1 stop14h 13m
United Airlines
Wed 9/236:50 am
LHR
-
GRB
2 stops20h 14m
United Airlines
Deal found 7/11$936
This United Airlines deal was found by Cheapflights users on 7/10. 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.
Mon 8/242:31 pm
GRB
-
LHR
1 stop11h 59m
United Airlines
Mon 8/314:25 pm
LHR
-
GRB
2 stops30h 29m
United Airlines
Deal found 7/10$946
This Expedia deal was found by Cheapflights users on 7/9. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/2312:26 pm
GRB
-
LGW
2 stops16h 24m
Iberia
Sun 8/308:40 pm
LGW
-
GRB
2 stops27h 45m
Iberia
Deal found 7/9$988
This oojo deal was found by Cheapflights users on 7/12. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/235:29 pm
GRB
-
LCY
2 stops18h 26m
Lufthansa
Sun 8/306:30 pm
LCY
-
GRB
2 stops28h 24m
Lufthansa
Deal found 7/12$1,043
This Delta deal was found by Cheapflights users on 7/12. 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.
Fri 8/1412:03 pm
GRB
-
LGW
2 stops15h 22m
Delta
Sun 8/2310:25 am
LGW
-
GRB
2 stops18h 09m
Delta
Deal found 7/12$1,047
This Iberia deal was found by Cheapflights users on 7/8. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/152:46 pm
GRB
-
LGW
2 stops22h 14m
Iberia
Tue 11/177:40 pm
LGW
-
GRB
2 stops28h 42m
Iberia
Deal found 7/8$1,127
This Delta deal was found by Cheapflights users on 7/9. 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.
Thu 8/611:07 am
GRB
-
LCY
2 stops16h 23m
Delta
Thu 8/137:45 am
LCY
-
GRB
2 stops18h 55m
Delta
Deal found 7/9$1,167

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 July 13, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$884
(Delta)
Provider with most accurate pricing for Green Bay Austin-Straubel-London (LON) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Green Bay Austin-Straubel-London (LON) flights.
Search Deals
From Green Bay Austin-Straubel to London (LON)
Search Deals

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated July 13, 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 round-trip

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Tue 9/22

7:00 am-7:10 am

1 stop18h 10m

London Heathrow

Tue 10/13

6:30 am-2:28 pm

2 stops13h 58m

$884

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Tue 9/15

8:05 am-9:00 am

1 stop18h 55m

London Heathrow

Fri 10/2

6:50 am-2:53 pm

2 stops14h 03m

$935

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Wed 9/23

11:02 am-10:20 am

2 stops17h 18m

London Heathrow

Mon 9/28

6:30 am-9:35 pm

2 stops21h 05m

$939

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Tue 9/15

4:04 pm-11:15 am

1 stop13h 11m

London Heathrow

Fri 10/2

11:10 am-12:13 am

1 stop19h 03m

$964
Quickest round-trip

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Sun 9/13

5:05 pm-11:55 am

1 stop12h 50m

London Heathrow

Wed 9/23

8:00 am-2:00 pm

1 stop12h 00m

$965

Green BayLondon

GRB - LGW

GRBLGW

Green Bay Austin-Straubel

Sun 8/23

12:26 pm-10:50 am

2 stops16h 24m

London Gatwick

Sun 8/30

8:40 pm-6:25 pm

2 stops27h 45m

$988

Green BayLondon

GRB - LCY

GRBLCY

Green Bay Austin-Straubel

Sun 8/23

5:29 pm-5:55 pm

2 stops18h 26m

London City

Sun 8/30

6:30 pm-4:54 pm

2 stops28h 24m

$1,043

Green BayLondon

GRB - LGW

GRBLGW

Green Bay Austin-Straubel

Fri 8/14

12:03 pm-9:25 am

2 stops15h 22m

London Gatwick

Sun 8/23

10:25 am-10:34 pm

2 stops18h 09m

$1,047

Green BayLondon

GRB - LGW

GRBLGW

Green Bay Austin-Straubel

Sun 11/15

2:46 pm-7:00 pm

2 stops22h 14m

London Gatwick

Tue 11/17

7:40 pm-6:22 pm

2 stops28h 42m

$1,127

Green BayLondon

GRB - LCY

GRBLCY

Green Bay Austin-Straubel

Thu 8/6

11:07 am-9:30 am

2 stops16h 23m

London City

Thu 8/13

7:45 am-8:40 pm

2 stops18h 55m

$1,167

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/8

Showing 1-10 of 15 resultsSorted by cheapest first
1
2

Compare providers for flights from Green Bay to London

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 London in July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice 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 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 flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Green Bay-London flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Green Bay-London 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 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 London

Have a flexible travel schedule? Discover the best time to fly to London 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.

Cheapflights Insights

Everything you need to know about your flight from Green Bay to London
No data available for this route at this time. Please check back soon.

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?

    Located just 5.9 mi from the city center, Green Bay Austin-Straubel is the airport most travelers will use when flying to London from Green Bay. Booking flights from Austin-Straubel (GRB) to London should be relatively easy as there are 0 daily outbound flights to London from 3 different airlines.

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

    Delta, United Airlines, and Iberia can get you from Green Bay to London in just under 16h 24m. Your travel time can differ by up to 2h 31m. Airlines will cover a distance of 3854 mi. This flight may include one or multiple stops.

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

    Currently priced at $652, United Airlines will fly you from Green Bay to London and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from American Airlines and British Airways - these airlines can fly you to your destination from $676 and $676, respectively.

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

    Most travelers choose Green Bay Austin-Straubel - London Heathrow, Green Bay Austin-Straubel - London City or Green Bay Austin-Straubel - London Gatwick when deciding on the best route from Green Bay to London.

  • 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 vacation 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.

See more FAQs

Traveling to a place near London?

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Top 3 airlines flying from Green Bay to London

Discover the top 3 airlines that operate flights from Green Bay to London. 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 July 13, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$652Average$920FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$676Average$1,199FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$676Average$856FlexibilityNo cancel feeOn-time70%

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