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 57% 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?

KLM and Delta 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 2026.

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.

$334 Cheap Flights from Green Bay to London in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Green Bay to London

Round-trip

One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

12:30 pm - 1:05 pmGRB Green Bay Austin-Straubel-LHR London Heathrow

18h 35m1 stop Minneapolis St Paul

8:40 am - 9:32 pmLHR London Heathrow-GRB Green Bay Austin-Straubel

18h 52m2 stops Amsterdam Schiphol Minneapolis St Paul

$901Delta

Wed, Apr 21 - Wed, May 5

5:00 pm - 1:05 pmGRB Green Bay Austin-Straubel-LHR London Heathrow

14h 05m1 stop Minneapolis St Paul

8:40 am - 9:32 pmLHR London Heathrow-GRB Green Bay Austin-Straubel

18h 52m2 stops Amsterdam Schiphol Minneapolis St Paul

$901Delta

Wed, Apr 21 - Tue, Apr 27

5:30 am - 7:25 amGRB Green Bay Austin-Straubel-LHR London Heathrow

19h 55m1 stop Atlanta Hartsfield-Jackson

6:30 am - 3:54 pmLHR London Heathrow-GRB Green Bay Austin-Straubel

15h 24m2 stops Amsterdam Schiphol Minneapolis St Paul

$901Delta

Wed, Apr 14 - Wed, Apr 28

5:24 pm - 10:30 amGRB Green Bay Austin-Straubel-LHR London Heathrow

11h 06m1 stop Chicago O'Hare Intl

6:15 am - 9:58 pmLHR London Heathrow-GRB Green Bay Austin-Straubel

21h 43m2 stops Madrid Barajas Chicago O'Hare Intl

$946British Airways

Tue, Apr 20 - Tue, Apr 27

5:24 pm - 10:30 amGRB Green Bay Austin-Straubel-LHR London Heathrow

11h 06m1 stop Chicago O'Hare Intl

7:50 am - 11:31 pmLHR London Heathrow-GRB Green Bay Austin-Straubel

21h 41m2 stops Madrid Barajas Chicago O'Hare Intl

$946British Airways

Mon, Apr 19 - Tue, Apr 27

5:24 pm - 12:50 pmGRB Green Bay Austin-Straubel-LHR London Heathrow

13h 26m1 stop Chicago O'Hare Intl

7:25 pm - 11:31 pmLHR London Heathrow-GRB Green Bay Austin-Straubel

34h 06m2 stops Barcelona-El Prat Chicago O'Hare Intl

$948British Airways

Tue, Apr 20 - Mon, Apr 26

5:40 am - 6:50 amGRB Green Bay Austin-Straubel-LHR London Heathrow

19h 10m1 stop Chicago O'Hare Intl

2:45 pm - 11:31 pmLHR London Heathrow-GRB Green Bay Austin-Straubel

14h 46m1 stop Chicago O'Hare Intl

$1,022American Airlines

Tue, Apr 20 - Mon, Apr 26

5:40 am - 6:50 amGRB Green Bay Austin-Straubel-LHR London Heathrow

19h 10m1 stop Chicago O'Hare Intl

2:45 pm - 11:31 pmLHR London Heathrow-GRB Green Bay Austin-Straubel

14h 46m1 stop Chicago O'Hare Intl

$1,023American Airlines

Tue, Apr 20 - Mon, Apr 26

1:15 pm - 5:55 amGRB Green Bay Austin-Straubel-LHR London Heathrow

10h 40m1 stop Chicago O'Hare Intl

9:00 am - 10:59 pmLHR London Heathrow-GRB Green Bay Austin-Straubel

19h 59m2 stops Zurich Chicago O'Hare Intl

$1,044United Airlines

Thu, Dec 3 - Thu, Dec 10

3:28 pm - 10:50 amGRB Green Bay Austin-Straubel-LHR London Heathrow

13h 22m2 stops Chicago O'Hare Intl Washington, D.C. Dulles Intl

9:00 am - 9:03 pmLHR London Heathrow-GRB Green Bay Austin-Straubel

18h 03m2 stops Zurich Chicago O'Hare Intl

$1,048United Airlines

Thu, Dec 3 - Thu, Dec 10

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Iberia flights from Green Bay to London

Our best Iberia deals on Green Bay to London flight tickets

Iberia

Apr 20

GRB9:42 amGreen Bay Austin-Straubel

16h 23m

1 stop

LHR8:05 amLondon Heathrow

Apr 26

LHR8:00 pmLondon Heathrow

31h 58m

2 stops

GRB9:58 pmGreen Bay Austin-Straubel

$917

Iberia

Apr 20

GRB9:42 amGreen Bay Austin-Straubel

18h 53m

2 stops

LHR10:35 amLondon Heathrow

Apr 26

LHR8:00 pmLondon Heathrow

31h 58m

2 stops

GRB9:58 pmGreen Bay Austin-Straubel

$925

British Airways flights from Green Bay to London

Our best British Airways deals on Green Bay to London flight tickets

British Airways

Apr 19

GRB5:24 pmGreen Bay Austin-Straubel

11h 06m

1 stop

LHR10:30 amLondon Heathrow

Apr 27

LHR7:50 amLondon Heathrow

21h 41m

2 stops

GRB11:31 pmGreen Bay Austin-Straubel

$946

British Airways

Apr 20

GRB5:24 pmGreen Bay Austin-Straubel

13h 26m

1 stop

LHR12:50 pmLondon Heathrow

Apr 26

LHR7:25 pmLondon Heathrow

34h 06m

2 stops

GRB11:31 pmGreen Bay Austin-Straubel

$948

British Airways

Apr 20

GRB5:24 pmGreen Bay Austin-Straubel

13h 26m

1 stop

LHR12:50 pmLondon Heathrow

Apr 26

LHR7:25 pmLondon Heathrow

34h 06m

2 stops

GRB11:31 pmGreen Bay Austin-Straubel

$949

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Green BayLondon

GRB Green Bay Austin-Straubel - LHR London Heathrow

GRBLHR

Green Bay Austin-Straubel

Wed 4/21

12:30 pm-1:05 pm

1 stop18h 35m

London Heathrow

Wed 5/5

8:40 am-9:32 pm

2 stops18h 52m

$901

Green BayLondon

GRB Green Bay Austin-Straubel - LHR London Heathrow

GRBLHR

Green Bay Austin-Straubel

Wed 4/21

5:00 pm-1:05 pm

1 stop14h 05m

London Heathrow

Tue 4/27

8:40 am-9:32 pm

2 stops18h 52m

$901

Green BayLondon

GRB Green Bay Austin-Straubel - LHR London Heathrow

GRBLHR

Green Bay Austin-Straubel

Wed 4/14

5:30 am-7:25 am

1 stop19h 55m

London Heathrow

Wed 4/28

6:30 am-3:54 pm

2 stops15h 24m

$901

Green BayLondon

GRB Green Bay Austin-Straubel - LHR London Heathrow

GRBLHR

Green Bay Austin-Straubel

Tue 4/20

5:24 pm-10:30 am

1 stop11h 06m

London Heathrow

Tue 4/27

6:15 am-9:58 pm

2 stops21h 43m

$946

Green BayLondon

GRB Green Bay Austin-Straubel - LHR London Heathrow

GRBLHR

Green Bay Austin-Straubel

Mon 4/19

5:24 pm-10:30 am

1 stop11h 06m

London Heathrow

Tue 4/27

7:50 am-11:31 pm

2 stops21h 41m

$946

Green BayLondon

GRB Green Bay Austin-Straubel - LHR London Heathrow

GRBLHR

Green Bay Austin-Straubel

Tue 4/20

5:24 pm-12:50 pm

1 stop13h 26m

London Heathrow

Mon 4/26

7:25 pm-11:31 pm

2 stops34h 06m

$948

Green BayLondon

GRB Green Bay Austin-Straubel - LHR London Heathrow

GRBLHR

Green Bay Austin-Straubel

Tue 4/20

5:40 am-6:50 am

1 stop19h 10m

London Heathrow

Mon 4/26

2:45 pm-11:31 pm

1 stop14h 46m

$1,022

Green BayLondon

GRB Green Bay Austin-Straubel - LHR London Heathrow

GRBLHR

Green Bay Austin-Straubel

Tue 4/20

5:40 am-6:50 am

1 stop19h 10m

London Heathrow

Mon 4/26

2:45 pm-11:31 pm

1 stop14h 46m

$1,023

Quickest round-trip

Green BayLondon

GRB Green Bay Austin-Straubel - LHR London Heathrow

GRBLHR

Green Bay Austin-Straubel

Thu 12/3

1:15 pm-5:55 am

1 stop10h 40m

London Heathrow

Thu 12/10

9:00 am-10:59 pm

2 stops19h 59m

$1,044

Green BayLondon

GRB Green Bay Austin-Straubel - LHR London Heathrow

GRBLHR

Green Bay Austin-Straubel

Thu 12/3

3:28 pm-10:50 am

2 stops13h 22m

London Heathrow

Thu 12/10

9:00 am-9:03 pm

2 stops18h 03m

$1,048

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 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 cheapest month to fly to London?

The cheapest month to fly to London from Green Bay is in October. Flight prices, which tend to average around $0, are often lower during this time because this is during the off-season. The month of January is another great option to travel to London, with average flight prices from Green Bay averaging around $767.

Can stopping save me money on Green Bay to London flights?

You could potentially save up to 25% on your flight if you consider stops on a Green Bay to London flight.

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

Best Price Found	$334
Fastest flight time	12h 29m
Direct flights	None

The best one-way flight to London from Green Bay in the past 72 hours is $334. The best round-trip flight deal from Green Bay to London found on momondo in the last 72 hours is $901.

The fastest flight from Green Bay to London takes 12h 29m

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

Search flight deals

Frequently asked questions about flying from Green Bay to London

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 12h 29m.
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 2026.
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.

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
American Airlines	PriceFrom $676	Free Cancellation	Rating 7.0 12,210 reviews	Search American Airlines flights
British Airways	PriceFrom $754	Free Cancellation	Rating 6.7 8,275 reviews	Search British Airways flights
United Airlines	PriceFrom $767	Free Cancellation	Rating 7.3 10,451 reviews	Search United Airlines flights

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Stansted

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Dover

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Watford

Richmond

Crawley

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Harrow

Brentford

Hook

Slough

Canterbury

Dunstable

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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Cheap flights from Green Bay to London from $334

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Green Bay to London departing on 4/20. 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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Iberia flights from Green Bay to London

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

What is the cheapest month to fly to London?

Can stopping save me money on Green Bay to London flights?

What is the cheapest airline that flies 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

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying 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

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Why use momondo?

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

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List of cabin classes available on flights landing in London. Availability may vary depending on flight origin and airline.

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