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?

Lufthansa, United Airlines, and Iberia 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 December 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.

$404 Cheap Flights from Green Bay to London in 2025/26

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Find the cheapest flights from Green Bay to London

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5:24 pm - 11:15 am

GRB

LHR

11h 51m1 stop

6:35 am - 4:47 pm

LHR

GRB

16h 12m2 stops

$606Lufthansa

Wed, Jan 14 - Tue, Jan 27

5:24 pm - 3:50 pm

GRB

LHR

16h 26m2 stops

6:35 am - 4:47 pm

LHR

GRB

16h 12m2 stops

$614Lufthansa

Wed, Jan 14 - Wed, Jan 28

5:24 pm - 11:15 am

GRB

LHR

11h 51m1 stop

8:15 pm - 4:47 pm

LHR

GRB

26h 32m2 stops

$615Lufthansa

Wed, Jan 14 - Mon, Jan 26

5:24 pm - 6:35 pm

GRB

LHR

19h 11m2 stops

8:15 pm - 4:47 pm

LHR

GRB

26h 32m2 stops

$624Lufthansa

Wed, Jan 14 - Mon, Jan 26

5:24 pm - 11:15 am

GRB

LHR

11h 51m1 stop

10:25 am - 4:47 pm

LHR

GRB

12h 22m1 stop

$632Lufthansa

Wed, Jan 14 - Wed, Jan 28

6:31 am - 9:20 am

GRB

LHR

20h 49m2 stops

1:45 pm - 7:03 pm

LHR

GRB

35h 18m2 stops

$638United Airlines

Wed, Jan 14 - Mon, Jan 26

2:39 pm - 10:50 am

GRB

LHR

14h 11m2 stops

6:50 am - 3:07 pm

LHR

GRB

14h 17m2 stops

$642United Airlines

Wed, Jan 7 - Wed, Jan 21

11:20 am - 7:00 pm

GRB

LGW

25h 40m2 stops

11:45 am - 10:14 pm

LGW

GRB

40h 29m2 stops

$865Iberia

Wed, Jan 14 - Mon, Jan 26

11:20 am - 7:00 pm

GRB

LGW

25h 40m2 stops

7:40 pm - 10:12 pm

LGW

GRB

32h 32m2 stops

$888Iberia

Wed, Jan 14 - Wed, Jan 28

10:50 am - 9:30 am

GRB

LCY

16h 40m2 stops

8:25 am - 9:26 pm

LCY

GRB

19h 01m2 stops

$6,772Delta

Wed, May 13 - Sat, May 23

United Airlines flights from Green Bay to London

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

United Airlines

Jan 14

GRB8:00 amGreen Bay Austin-Straubel

17h 55m

1 stop

LHR7:55 amLondon Heathrow

Jan 26

LHR1:45 pmLondon Heathrow

35h 18m

2 stops

GRB7:03 pmGreen Bay Austin-Straubel

$638

Find similar

United Airlines

Jan 7

GRB2:39 pmGreen Bay Austin-Straubel

14h 11m

2 stops

LHR10:50 amLondon Heathrow

Jan 21

LHR6:50 amLondon Heathrow

14h 17m

2 stops

GRB3:07 pmGreen Bay Austin-Straubel

$642

Find similar

United Airlines

Jan 11

GRB2:39 pmGreen Bay Austin-Straubel

11h 16m

1 stop

LHR7:55 amLondon Heathrow

Jan 27

LHR10:25 amLondon Heathrow

14h 38m

1 stop

GRB7:03 pmGreen Bay Austin-Straubel

$666

Find similar

Delta flights from Green Bay to London

Our best Delta deals on Green Bay to London flight tickets

Delta

May 13

GRB6:45 amGreen Bay Austin-Straubel

24h 25m

1 stop

LHR1:10 pmLondon Heathrow

May 23

LHR12:25 pmLondon Heathrow

15h 01m

1 stop

GRB9:26 pmGreen Bay Austin-Straubel

$853

Find similar

Delta

Jun 12

GRB5:25 pmGreen Bay Austin-Straubel

15h 10m

2 stops

LHR2:35 pmLondon Heathrow

Jul 12

LHR9:00 amLondon Heathrow

18h 26m

2 stops

GRB9:26 pmGreen Bay Austin-Straubel

$1,487

Find similar

Delta

Jun 12

GRB5:25 pmGreen Bay Austin-Straubel

14h 20m

2 stops

LHR1:45 pmLondon Heathrow

Jul 12

LHR6:15 amLondon Heathrow

21h 11m

2 stops

GRB9:26 pmGreen Bay Austin-Straubel

$1,488

Find similar

Fly from

Fly to

Route

Depart

Return

Price

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Wed 1/14

5:24 pm-11:15 am

1 stop11h 51m

London Heathrow

Tue 1/27

6:35 am-4:47 pm

2 stops16h 12m

$606

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Wed 1/14

5:24 pm-3:50 pm

2 stops16h 26m

London Heathrow

Wed 1/28

6:35 am-4:47 pm

2 stops16h 12m

$614

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Wed 1/14

5:24 pm-11:15 am

1 stop11h 51m

London Heathrow

Mon 1/26

8:15 pm-4:47 pm

2 stops26h 32m

$615

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Wed 1/14

5:24 pm-6:35 pm

2 stops19h 11m

London Heathrow

Mon 1/26

8:15 pm-4:47 pm

2 stops26h 32m

$624

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Wed 1/14

5:24 pm-11:15 am

1 stop11h 51m

London Heathrow

Wed 1/28

10:25 am-4:47 pm

1 stop12h 22m

$632

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Wed 1/14

6:31 am-9:20 am

2 stops20h 49m

London Heathrow

Mon 1/26

1:45 pm-7:03 pm

2 stops35h 18m

$638

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Wed 1/7

2:39 pm-10:50 am

2 stops14h 11m

London Heathrow

Wed 1/21

6:50 am-3:07 pm

2 stops14h 17m

$642

Green BayLondon

GRB - LGW

GRBLGW

Green Bay Austin-Straubel

Wed 1/14

11:20 am-7:00 pm

2 stops25h 40m

London Gatwick

Mon 1/26

11:45 am-10:14 pm

2 stops40h 29m

$865

Green BayLondon

GRB - LGW

GRBLGW

Green Bay Austin-Straubel

Wed 1/14

11:20 am-7:00 pm

2 stops25h 40m

London Gatwick

Wed 1/28

7:40 pm-10:12 pm

2 stops32h 32m

$888

Green BayLondon

GRB - LCY

GRBLCY

Green Bay Austin-Straubel

Wed 5/13

10:50 am-9:30 am

2 stops16h 40m

London City

Sat 5/23

8:25 am-9:26 pm

2 stops19h 01m

$6,772

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 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 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

Fastest flight time	10h 13m
Direct flights	None

The fastest flight from Green Bay to London takes 10h 13m

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 13m.
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 December 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 American Airlines (52% of total bookings). The next most popular airline is British Airways (48%).

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 7,617 reviews	Search British Airways flights
American Airlines	PriceFrom $699	Free Cancellation	Rating 7.2 11,066 reviews	Search American Airlines flights
United Airlines	PriceFrom $701	Free Cancellation	Rating 7.4 9,116 reviews	Search United Airlines flights

Gatwick

Hounslow

Milton Keynes

Dover

Luton

Slough

Guildford

Hayes

Dartford

Crawley

Brentwood

Watford

Wembley

Cobham

Folkestone

Romford

Richmond

Uxbridge

Chelmsford

Stansted

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 $404

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 1/14. 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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United Airlines flights from Green Bay to London

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See travel insights to London from

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

Lufthansa, United Airlines, and Iberia 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

Fastest flight time

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