What airlines fly to London?

American Airlines, United Airlines and British Airways are the top three most popular airlines that fly to London from Green Bay according to our data. American Airlines is the first choice among our users, with 58% of people opting to fly with this airline when traveling to London. Keep in mind that there are 3 different airlines that fly to London on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Green Bay Austin-Straubel to London?

British Airways, WestJet, and Lufthansa are the most popular carriers operating from Green Bay Austin-Straubel to London

When did momondo last update prices for flights from Green Bay Austin-Straubel Airport to London?

Prices for flights from Green Bay Austin-Straubel Airport to London were last updated today.

How many operators does momondo search for flights from Green Bay Austin-Straubel Airport to London?

There are 3 operators available for flights from Green Bay Austin-Straubel Airport to London as of October 2025.

How old do you have to be to fly from Green Bay Austin-Straubel Airport to London?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Green Bay Austin-Straubel Airport to London.

What documentation or ID do you need to fly to London?

The travel and health documents you'll need for your trip to London may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at London. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$610 Cheap Flights from Green Bay to London in 2025/26

Q: What is the typical price of a round-trip flight between Green Bay and London?

Prices are currently low for flights on this route. Typical prices usually range from $726 to $832. The lowest price recently found on this route was $610.

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5:19 am - 7:50 amGRB-LHR

20h 31m1 stop

10:45 am - 10:37 pmLHR-GRB

17h 52m1 stop

$610Virgin Atlantic

Find Deal

Fri, Nov 28 - Thu, Dec 4

5:19 am - 7:50 amGRB-LHR

20h 31m1 stop

10:45 am - 10:37 pmLHR-GRB

17h 52m1 stop

$612Virgin Atlantic

Find Deal

Fri, Nov 28 - Thu, Dec 4

11:11 am - 6:50 amGRB-LHR

13h 39m2 stops

6:30 am - 3:37 pmLHR-GRB

15h 07m2 stops

$613Multiple Airlines

Find Deal

Sun, Dec 7 - Sun, Dec 14

12:13 pm - 7:05 amGRB-LHR

12h 52m1 stop

6:30 am - 3:37 pmLHR-GRB

15h 07m2 stops

$622KLM

Find Deal

Sun, Dec 7 - Sun, Dec 14

11:11 am - 6:50 amGRB-LHR

13h 39m2 stops

6:30 am - 3:37 pmLHR-GRB

15h 07m2 stops

$627Multiple Airlines

Find Deal

Sun, Dec 7 - Sun, Dec 14

2:52 pm - 8:45 amGRB-LHR

11h 53m1 stop

6:30 am - 4:07 pmLHR-GRB

15h 37m2 stops

$635KLM

Find Deal

Fri, Nov 28 - Thu, Dec 4

6:00 am - 9:00 amGRB-LGW

21h 00m2 stops

12:30 pm - 9:13 amLGW-GRB

26h 43m2 stops

$728American Airlines

Find Deal

Sat, Dec 6 - Sat, Dec 13

11:32 am - 11:15 amGRB-LHR

17h 43m1 stop

7:25 pm - 5:43 pmLHR-GRB

28h 18m2 stops

$827British Airways

Find Deal

Sun, Mar 29 - Sat, Apr 4

11:32 am - 6:55 pmGRB-LHR

25h 23m2 stops

7:25 pm - 5:43 pmLHR-GRB

28h 18m2 stops

$896British Airways

Find Deal

Sun, Mar 29 - Sat, Apr 4

6:39 pm - 11:35 amGRB-LHR

11h 56m1 stop

9:15 am - 5:43 pmLHR-GRB

14h 28m1 stop

$1,012American Airlines

Find Deal

Fri, Mar 27 - Tue, Mar 31

KLM flights from Green Bay to London

Our best KLM deals on Green Bay to London flight tickets

KLM

Dec 7

GRB12:13 pmGreen Bay Austin-Straubel

12h 52m

1 stop

LHR7:05 amLondon Heathrow

Dec 14

LHR6:30 amLondon Heathrow

15h 07m

2 stops

GRB3:37 pmGreen Bay Austin-Straubel

$622

Find similar

KLM

Nov 28

GRB2:52 pmGreen Bay Austin-Straubel

11h 53m

1 stop

LHR8:45 amLondon Heathrow

Dec 4

LHR6:30 amLondon Heathrow

15h 37m

2 stops

GRB4:07 pmGreen Bay Austin-Straubel

$635

Find similar

KLM

Dec 7

GRB12:13 pmGreen Bay Austin-Straubel

12h 52m

1 stop

LHR7:05 amLondon Heathrow

Dec 14

LHR1:00 pmLondon Heathrow

13h 39m

1 stop

GRB8:39 pmGreen Bay Austin-Straubel

$641

Find similar

United Airlines flights from Green Bay to London

Our best United Airlines deals on Green Bay to London flight tickets

United Airlines

Dec 7

GRB1:35 pmGreen Bay Austin-Straubel

15h 40m

1 stop

LHR11:15 amLondon Heathrow

Dec 14

LHR11:10 amLondon Heathrow

34h 02m

2 stops

GRB3:12 pmGreen Bay Austin-Straubel

$684

Find similar

United Airlines

Dec 7

GRB3:51 pmGreen Bay Austin-Straubel

10h 04m

1 stop

LHR7:55 amLondon Heathrow

Dec 14

LHR12:05 pmLondon Heathrow

15h 27m

2 stops

GRB9:32 pmGreen Bay Austin-Straubel

$702

Find similar

United Airlines

Dec 7

GRB8:00 amGreen Bay Austin-Straubel

17h 10m

2 stops

LHR7:10 amLondon Heathrow

Dec 14

LHR10:25 amLondon Heathrow

12h 21m

1 stop

GRB4:46 pmGreen Bay Austin-Straubel

$709

Find similar

Fly from

Fly to

Route

Depart

Return

Price

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Fri 11/28

5:19 am-7:50 am

1 stop20h 31m

London Heathrow

Thu 12/4

10:45 am-10:37 pm

1 stop17h 52m

$610

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Fri 11/28

5:19 am-7:50 am

1 stop20h 31m

London Heathrow

Thu 12/4

10:45 am-10:37 pm

1 stop17h 52m

$612

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Sun 12/7

11:11 am-6:50 am

2 stops13h 39m

London Heathrow

Sun 12/14

6:30 am-3:37 pm

2 stops15h 07m

$613

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Sun 12/7

12:13 pm-7:05 am

1 stop12h 52m

London Heathrow

Sun 12/14

6:30 am-3:37 pm

2 stops15h 07m

$622

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Sun 12/7

11:11 am-6:50 am

2 stops13h 39m

London Heathrow

Sun 12/14

6:30 am-3:37 pm

2 stops15h 07m

$627

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Fri 11/28

2:52 pm-8:45 am

1 stop11h 53m

London Heathrow

Thu 12/4

6:30 am-4:07 pm

2 stops15h 37m

$635

Green BayLondon

GRB - LGW

GRBLGW

Green Bay Austin-Straubel

Sat 12/6

6:00 am-9:00 am

2 stops21h 00m

London Gatwick

Sat 12/13

12:30 pm-9:13 am

2 stops26h 43m

$728

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Sun 3/29

11:32 am-11:15 am

1 stop17h 43m

London Heathrow

Sat 4/4

7:25 pm-5:43 pm

2 stops28h 18m

$827

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Sun 3/29

11:32 am-6:55 pm

2 stops25h 23m

London Heathrow

Sat 4/4

7:25 pm-5:43 pm

2 stops28h 18m

$896

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Fri 3/27

6:39 pm-11:35 am

1 stop11h 56m

London Heathrow

Tue 3/31

9:15 am-5:43 pm

1 stop14h 28m

$1,012

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 14 resultsSorted by cheapest first

How to get the cheapest flight ticket from Green Bay to London

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the typical price of a round-trip flight between Green Bay and London?

What is the cheapest day to depart on your flight to London?

The cheapest day to depart from Green Bay to London is on a Tuesday. Travelers who choose to depart for London on a Tuesday will often find tickets for as low as $691. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around $1,460. These prices are subject to change though, so be sure to set up a Price Alert for flights to London.

What is the cheapest time of day to depart on your flight to London?

Flying to London from Green Bay in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $738 when looking at flights departing in the afternoon. Flights to London are more costly in the morning, with an average ticket price of $904. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

When to book flights from Green Bay to London

Are you open to changing your travel dates? Check out the ideal times to fly from Green Bay to London according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Green Bay to London (GRB to LON) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Green Bay to London

Direct flights	None

There are no direct flights from Green Bay to London. There are no popular flight routes from Green Bay to London.

Search flight deals

How far is Green Bay Austin-Straubel to London by plane?
A flight from Green Bay Austin-Straubel to London will travel around 3838.6 mi. A reasonable flight in good conditions will take 10h 04m.
When did momondo last update prices for flights from Green Bay Austin-Straubel Airport to London?
Prices for flights from Green Bay Austin-Straubel Airport to London were last updated today.
How many operators does momondo search for flights from Green Bay Austin-Straubel Airport to London?
There are 3 operators available for flights from Green Bay Austin-Straubel Airport to London as of October 2025.
How old do you have to be to fly from Green Bay Austin-Straubel Airport to London?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Green Bay Austin-Straubel Airport to London.
What documentation or ID do you need to fly to London?
The travel and health documents you'll need for your trip to London may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at London. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Green Bay to London?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Green Bay to London is British Airways (51% of total bookings). The next most popular airline is American Airlines (49%).

Best airlines flying from Green Bay to London

Compare and see reviews for airlines that fly from Green Bay to London with momondo

Airline	Rating	Free Cancellation	Price
British Airways	PriceFrom $650	Free Cancellation	Rating 6.7 7,467 reviews	Search British Airways flights
United Airlines	PriceFrom $701	Free Cancellation	Rating 7.4 8,991 reviews	Search United Airlines flights
American Airlines	PriceFrom $701	Free Cancellation	Rating 7.2 11,028 reviews	Search American Airlines flights

Gatwick

Hounslow

Milton Keynes

Luton

Dover

Slough

Guildford

Hayes

Dartford

Crawley

Brentwood

Chelmsford

Colchester

Folkestone

Romford

Cobham

Wembley

Ilford

Stansted

Watford

Why use momondo?

Why should I use momondo to find a flight deal from Green Bay to London?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Green Bay to London. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Green Bay to London with flexible booking policies on momondo?

All flight searches from Green Bay to London on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Green Bay to London?

Once all potential Green Bay to London flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Green Bay to London right now. Can momondo alert me if prices change?

Price alerts on flights to London from Green Bay are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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Find better results for your trip to the United Kingdom

Cheap flights from Green Bay to London from $610

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Green Bay to London departing on 11/28. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Big names and deals

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Filter for what you want

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Find the cheapest flights from Green Bay to London

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KLM flights from Green Bay to London

Our best KLM deals on Green Bay to London flight tickets

United Airlines flights from Green Bay to London

Our best United Airlines deals on Green Bay to London flight tickets

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How to get the cheapest flight ticket from Green Bay to London

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Green Bay and London?

What is the cheapest day to depart on your flight to London?

What is the cheapest time of day to depart on your flight to London?

What is the cheapest airline that flies from Green Bay Austin-Straubel to London?

British Airways, WestJet, and Lufthansa are the most popular carriers operating from Green Bay Austin-Straubel to London

What airlines fly to London?

When to book flights from Green Bay to London

Cheap Green Bay to London (GRB to LON) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Green Bay to London

Direct flights

How far is Green Bay Austin-Straubel to London by plane?

When did momondo last update prices for flights from Green Bay Austin-Straubel Airport to London?

How many operators does momondo search for flights from Green Bay Austin-Straubel Airport to London?

How old do you have to be to fly from Green Bay Austin-Straubel Airport to London?

What documentation or ID do you need to fly to London?

What is the most popular airline from Green Bay to London?

Best airlines flying from Green Bay to London

Compare and see reviews for airlines that fly from Green Bay to London with momondo

Traveling to a place near London?

Why use momondo?

Why should I use momondo to find a flight deal from Green Bay to London?

Can I find flights from Green Bay to London with flexible booking policies on momondo?

How can momondo help me find flights from Green Bay to London?

I’m not ready to book a flight from Green Bay to London right now. Can momondo alert me if prices change?

An easier way to manage your London trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United Kingdom

Fly into one of these airports located in London

Airports listed have a maximum distance of 35.6 mi from London