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

Currently priced at $815, 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 KLM and Delta - these airlines can fly you to your destination from $838 and $853, respectively. Users have found that United Airlines is 9% cheaper than the other options available to this destination.

What is the cheapest day to fly from Green Bay to London?

Travelers seeking maximum savings on their Green Bay to London flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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.

What are the most popular airlines that fly from Green Bay to London?

American Airlines, British Airways and United Airlines are the most popular airlines when flying from Green Bay to London.

What is the cheapest day to fly round-trip from Green Bay to London?

Flights from Green Bay to London are found to be more expensive on Sunday. This shouldn't discourage you from searching as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to London.

What is the cheapest month to fly from Green Bay to London?

Flights from Green Bay to London lean towards being more expensive in June. Prices are generally better when you fly from Green Bay to London in September, with the cheapest ticket starting at $660.

What is the cheapest time of day to fly from GRB to LON?

When flying from Green Bay to London, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 19% versus a flight in the morning.

Most accurate provider : When it comes to deals on Green Bay-London flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Green Bay-London flight deals on Cheapflights vs. AranGrant >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 AranGrant the most. AranGrant 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.

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.

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.

$426+ Flights from Green Bay to London - Compare & Save Big

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Cheap flight deals from Green Bay to London

Most accurate provider	AranGrant 3 stars
Most trusted provider	AranGrant 3 stars
Round-trip from	$815 (United Airlines)
One-way from	$426 (Delta)
Popular in	June
Cheapest in	September
Average price	$816

Provider with most accurate pricing for Green Bay Austin-Straubel-London (LON) flight deals.

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Provider most trusted by Cheapflights users for Green Bay Austin-Straubel-London (LON) flights.

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From Green Bay Austin-Straubel to London (LON)

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One-way flight from Green Bay Austin-Straubel to London (LON)

Search Deals

Highest demand for flights based on searches. 16% potential increase in price ($183 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease ($36 potential savings vs. average RT price).

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Average for round-trip flights in April 2025

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Find 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 abril 29, 2025.

jue. 10/163:45 pmGRB - LHR

1 stop10h 35mUnited Airlines

vie. 10/242:05 pmLHR - GRB

2 stops31h 04mUnited Airlines

Deal found 4/28

$815

jue. 10/165:30 amGRB - LHR

1 stop19h 15mKLM

vie. 10/249:20 amLHR - GRB

1 stop18h 38mKLM

Deal found 4/28

$838

jue. 10/167:00 amGRB - LHR

2 stops19h 50mDelta

vie. 10/246:30 amLHR - GRB

2 stops20h 08mDelta

Deal found 4/28

$853

vie. 9/126:10 pmGRB - LGW

2 stops19h 50mBritish Airways

sáb. 9/208:40 pmLGW - GRB

2 stops32h 43mBritish Airways

Deal found 4/28

$949

jue. 10/165:25 pmGRB - LCY

2 stops17h 15mDelta

vie. 10/247:45 amLCY - GRB

2 stops18h 53mDelta

Deal found 4/28

$985

mar. 6/105:53 pmGRB - LHR

1 stop10h 37mBritish Airways

mar. 6/176:10 amLHR - GRB

2 stops17h 13mBritish Airways

Deal found 4/28

$1,056

vie. 9/510:40 amGRB - LCY

2 stops19h 00mMultiple Airlines

dom. 9/147:20 pmLCY - GRB

2 stops30h 30mMultiple Airlines

Deal found 4/28

$1,088

jue. 6/125:33 amGRB - LHR

1 stop19h 12mVirgin Atlantic

jue. 6/1911:20 amLHR - GRB

1 stop17h 53mVirgin Atlantic

Deal found 4/28

$1,094

jue. 6/123:54 pmGRB - LHR

2 stops13h 31mMultiple Airlines

jue. 6/196:50 amLHR - GRB

2 stops14h 23mMultiple Airlines

Deal found 4/28

$1,130

vie. 7/47:00 amGRB - LGW

2 stops21h 00mDelta

vie. 7/1112:00 pmLGW - GRB

2 stops17h 22mDelta

Deal found 4/28

$1,240

mié. 6/115:53 pmGRB - LHR

1 stop10h 37mAmerican Airlines

jue. 6/269:15 amLHR - GRB

1 stop20h 11mAmerican Airlines

Deal found 4/28

$1,278

mié. 6/1112:10 pmGRB - LGW

2 stops16h 35mMultiple Airlines

jue. 6/269:20 pmLGW - GRB

3 stops29h 16mMultiple Airlines

Deal found 4/28

$1,476

Best flights from Green Bay to London
Discover carefully curated flight deals from Green Bay to London that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated abril 29, 2025.

jue. 10/163:45 pmGRB - LHR

1 stop10h 35mUnited Airlines

vie. 10/242:05 pmLHR - GRB

2 stops31h 04mUnited Airlines

Deal found 4/28

$815

jue. 10/165:30 amGRB - LHR

1 stop19h 15mKLM

vie. 10/249:20 amLHR - GRB

1 stop18h 38mKLM

Deal found 4/28

$838

jue. 10/167:00 amGRB - LHR

2 stops19h 50mDelta

vie. 10/246:30 amLHR - GRB

2 stops20h 08mDelta

Deal found 4/28

$853

vie. 9/126:10 pmGRB - LGW

2 stops19h 50mBritish Airways

sáb. 9/208:40 pmLGW - GRB

2 stops32h 43mBritish Airways

Deal found 4/28

$949

vie. 9/510:40 amGRB - LCY

2 stops19h 00mMultiple Airlines

dom. 9/147:20 pmLCY - GRB

2 stops30h 30mMultiple Airlines

Deal found 4/28

$1,088

jue. 6/125:33 amGRB - LHR

1 stop19h 12mVirgin Atlantic

jue. 6/1911:20 amLHR - GRB

1 stop17h 53mVirgin Atlantic

Deal found 4/28

$1,094

mié. 6/115:53 pmGRB - LHR

1 stop10h 37mAmerican Airlines

jue. 6/269:15 amLHR - GRB

1 stop20h 11mAmerican Airlines

Deal found 4/28

$1,278

jue. 10/165:25 pmGRB - LCY

2 stops17h 15mDelta

vie. 10/247:45 amLCY - GRB

2 stops18h 53mDelta

Deal found 4/28

$985

mar. 6/105:53 pmGRB - LHR

1 stop10h 37mBritish Airways

mar. 6/176:10 amLHR - GRB

2 stops17h 13mBritish Airways

Deal found 4/28

$1,056

jue. 6/123:54 pmGRB - LHR

2 stops13h 31mMultiple Airlines

jue. 6/196:50 amLHR - GRB

2 stops14h 23mMultiple Airlines

Deal found 4/28

$1,130

vie. 7/47:00 amGRB - LGW

2 stops21h 00mDelta

vie. 7/1112:00 pmLGW - GRB

2 stops17h 22mDelta

Deal found 4/28

$1,240

mié. 6/1112:10 pmGRB - LGW

2 stops16h 35mMultiple Airlines

jue. 6/269:20 pmLGW - GRB

3 stops29h 16mMultiple Airlines

Deal found 4/28

$1,476

One-way flights from Green Bay to London
Search for one-way flight options from Green Bay to London. Find affordable one-way fares based on user searches. Data last updated abril 29, 2025.

dom. 8/1012:10 pmGRB - LHR

1 stop19h 00mDelta

Deal found 4/29

$426

sáb. 6/212:31 pmGRB - LHR

2 stops16h 14mBritish Airways

Deal found 4/28

$799

sáb. 6/2111:13 amGRB - LGW

2 stops16h 47mDelta

Deal found 4/28

$898

sáb. 6/214:24 pmGRB - LCY

2 stops14h 51mDelta

Deal found 4/28

$938

Cheapflights Fare Finder

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

jue. 10/16

3:45 pm-8:20 am

1 stop10h 35m

London Heathrow

vie. 10/24

2:05 pm-3:09 pm

2 stops31h 04m

$815

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

jue. 10/16

5:30 am-6:45 am

1 stop19h 15m

London Heathrow

vie. 10/24

9:20 am-9:58 pm

1 stop18h 38m

$838

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

jue. 10/16

7:00 am-8:50 am

2 stops19h 50m

London Heathrow

vie. 10/24

6:30 am-8:38 pm

2 stops20h 08m

$853

Green BayLondon

GRB - LGW

GRBLGW

Green Bay Austin-Straubel

vie. 9/12

6:10 pm-8:00 pm

2 stops19h 50m

London Gatwick

sáb. 9/20

8:40 pm-11:23 pm

2 stops32h 43m

$949

Green BayLondon

GRB - LCY

GRBLCY

Green Bay Austin-Straubel

jue. 10/16

5:25 pm-4:40 pm

2 stops17h 15m

London City

vie. 10/24

7:45 am-8:38 pm

2 stops18h 53m

$985

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

mar. 6/10

5:53 pm-10:30 am

1 stop10h 37m

London Heathrow

mar. 6/17

6:10 am-5:23 pm

2 stops17h 13m

$1,056

Green BayLondon

GRB - LCY

GRBLCY

Green Bay Austin-Straubel

vie. 9/5

10:40 am-11:40 am

2 stops19h 00m

London City

dom. 9/14

7:20 pm-7:50 pm

2 stops30h 30m

$1,088

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

jue. 6/12

5:33 am-6:45 am

1 stop19h 12m

London Heathrow

jue. 6/19

11:20 am-11:13 pm

1 stop17h 53m

$1,094

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

jue. 6/12

3:54 pm-11:25 am

2 stops13h 31m

London Heathrow

jue. 6/19

6:50 am-3:13 pm

2 stops14h 23m

$1,130

Green BayLondon

GRB - LGW

GRBLGW

Green Bay Austin-Straubel

vie. 7/4

7:00 am-10:00 am

2 stops21h 00m

London Gatwick

vie. 7/11

12:00 pm-11:22 pm

2 stops17h 22m

$1,240

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 17 results

Compare providers for flights from Green Bay to London

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 April.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*2 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars
AranGrant	Price Accuracy3 stars	Trust 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 AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Green Bay-London flight deals on Cheapflights vs. AranGrant >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 AranGrant the most. AranGrant 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

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

Currently, November is the cheapest month in which you can book a flight from Green Bay to London (average of $661). Flying from Green Bay to London in June is currently the most expensive (average of $1,110). 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.

Rainfall in London by month

In terms of precipitation, rainfall in London ranges from 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit London when rainfall is around 1.6 in.

Temperature in London by month

If weather is an important factor for your trip to London, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

Reviews of airlines servicing London

Read through reviews of airlines operating flights from Green Bay to London, such as Delta, KLM and United Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,936 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta

8.0

Very good

7,936 reviews

Delta

8.0

Very good

7,936 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM

7.8

Good

1,333 reviews

Delta

8.0

Very good

7,936 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines

7.4

Good

8,696 reviews

Delta

8.0

Very good

7,936 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Virgin Atlantic

7.4

Good

642 reviews

Delta

8.0

Very good

7,936 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,936 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

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.
What are the cheapest airlines flying from Green Bay to London round-trip?
Currently priced at $815, 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 KLM and Delta - these airlines can fly you to your destination from $838 and $853, respectively. Users have found that United Airlines is 9% cheaper than the other options available to this destination.
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.
What is the cheapest month to book a flight from Green Bay to London?
Currently, November is the cheapest month in which you can book a flight from Green Bay to London (average of $661). Flying from Green Bay to London in June is currently the most expensive (average of $1,110). 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

Hayes

Hounslow

Thornton Heath

Luton

Horley

Canterbury

Harrow

Wembley

Dover

Gatwick

Orpington

Watford

Croydon

Borehamwood

Folkestone

Ilford

Aylesbury

Sutton

Chelmsford

Brentwood

Browse thousands of different options on Cheapflights for your next trip

Top 3 airlines flying from Green Bay to London

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$701	Average$1,099	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$723	Average$1,379	FlexibilityNo cancel fee	On-time71%
British Airways	Cheapest$738	Average$848	FlexibilityNo cancel fee	On-time70%

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$426+ Cheap flights from Green Bay (GRB) to London (LON)

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 8/10. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Green Bay to London with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Green Bay to London

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Green Bay to London

Cheapest flights from Green Bay to LondonExplore 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 abril 29, 2025.

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 abril 29, 2025.

Cheapflights Fare Finder

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

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 April.

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.

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?

Rainfall in London by month

Plan your trip to London by taking into account the average rainfall totals by month.

Temperature in London by month

Plan your trip to London by taking into account the average temperature totals by month.

Reviews of airlines servicing London

Read through reviews of airlines operating flights from Green Bay to London, such as Delta, KLM and United Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

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?

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

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

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

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

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

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

Traveling to a place near Green Bay?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Green Bay to London

See prices for flight routes from nearby airports that may be better suited for you.

Top 3 airlines flying from Green Bay to London

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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 abril 29, 2025.