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

Prices for flights from Green Bay Austin-Straubel Airport to London Heathrow Airport are updated daily.

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

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

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

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Green Bay Austin-Straubel Airport to London Heathrow Airport.

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

The travel and health documents you'll need for your trip to London Heathrow Airport 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 Heathrow Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$607 Cheap Flights from Green Bay to London Heathrow Airport in 2025/26

1 adult

0 bags

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Find the cheapest flights from Green Bay to London

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Cheap round-trip flights

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10:42 am - 11:15 am

GRB

LHR

18h 33m1 stop

7:40 am - 9:31 pm

LHR

GRB

19h 51m2 stops

$607Lufthansa

Wed, Jan 7 - Tue, Jan 13

5:24 pm - 11:15 am

GRB

LHR

11h 51m1 stop

7:25 am - 9:31 pm

LHR

GRB

20h 06m1 stop

$633Lufthansa

Wed, Jan 7 - Tue, Jan 13

8:00 am - 5:55 am

GRB

LHR

15h 55m1 stop

9:00 am - 7:03 pm

LHR

GRB

16h 03m2 stops

$639United Airlines

Wed, Jan 7 - Fri, Jan 16

10:42 am - 6:40 am

GRB

LHR

13h 58m2 stops

6:50 am - 3:07 pm

LHR

GRB

14h 17m2 stops

$643United Airlines

Wed, Jan 7 - Tue, Jan 13

10:42 am - 10:25 am

GRB

LHR

17h 43m2 stops

9:00 am - 7:03 pm

LHR

GRB

16h 03m2 stops

$644United Airlines

Wed, Jan 7 - Thu, Jan 15

10:42 am - 7:55 am

GRB

LHR

15h 13m1 stop

6:35 am - 4:47 pm

LHR

GRB

16h 12m2 stops

$652Lufthansa

Fri, Jan 16 - Wed, Jan 28

10:42 am - 6:40 am

GRB

LHR

13h 58m2 stops

8:30 am - 7:03 pm

LHR

GRB

16h 33m2 stops

$655United Airlines

Wed, Jan 7 - Wed, Jan 14

10:42 am - 11:15 am

GRB

LHR

18h 33m1 stop

7:40 am - 4:47 pm

LHR

GRB

15h 07m1 stop

$667Lufthansa

Wed, Jan 7 - Wed, Jan 14

10:42 am - 8:45 am

GRB

LHR

16h 03m2 stops

6:35 am - 9:31 pm

LHR

GRB

20h 56m2 stops

$671Lufthansa

Fri, Jan 16 - Wed, Jan 28

10:42 am - 5:55 am

GRB

LHR

13h 13m1 stop

10:25 am - 4:47 pm

LHR

GRB

12h 22m1 stop

$678Lufthansa

Fri, Jan 16 - Wed, Jan 28

Delta flights from Green Bay to London Heathrow Airport

Our best Delta deals on Green Bay to London Heathrow Airport 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

Jan 6

GRB11:15 amGreen Bay Austin-Straubel

13h 10m

2 stops

LHR6:25 amLondon Heathrow

Jan 12

LHR6:30 amLondon Heathrow

21h 05m

2 stops

GRB9:35 pmGreen Bay Austin-Straubel

$1,038

Find similar

Delta

Jan 10

GRB5:24 amGreen Bay Austin-Straubel

21h 36m

1 stop

LHR9:00 amLondon Heathrow

Jan 14

LHR8:55 amLondon Heathrow

19h 34m

1 stop

GRB10:29 pmGreen Bay Austin-Straubel

$1,249

Find similar

British Airways flights from Green Bay to London Heathrow Airport

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

British Airways

May 13

GRB6:40 pmGreen Bay Austin-Straubel

11h 35m

1 stop

LHR12:15 pmLondon Heathrow

May 23

LHR2:25 pmLondon Heathrow

14h 42m

1 stop

GRB11:07 pmGreen Bay Austin-Straubel

$874

Find similar

British Airways

May 14

GRB6:40 pmGreen Bay Austin-Straubel

9h 50m

1 stop

LHR10:30 amLondon Heathrow

May 24

LHR12:15 pmLondon Heathrow

11h 25m

1 stop

GRB5:40 pmGreen Bay Austin-Straubel

$1,093

Find similar

British Airways

Jun 12

GRB3:00 pmGreen Bay Austin-Straubel

17h 35m

2 stops

LHR2:35 pmLondon Heathrow

Jul 12

LHR9:15 amLondon Heathrow

19h 53m

1 stop

GRB11:08 pmGreen Bay Austin-Straubel

$1,552

Find similar

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Wed 1/7

10:42 am-11:15 am

1 stop18h 33m

London Heathrow

Tue 1/13

7:40 am-9:31 pm

2 stops19h 51m

$607

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Wed 1/7

5:24 pm-11:15 am

1 stop11h 51m

London Heathrow

Tue 1/13

7:25 am-9:31 pm

1 stop20h 06m

$633

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Wed 1/7

8:00 am-5:55 am

1 stop15h 55m

London Heathrow

Fri 1/16

9:00 am-7:03 pm

2 stops16h 03m

$639

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Wed 1/7

10:42 am-6:40 am

2 stops13h 58m

London Heathrow

Tue 1/13

6:50 am-3:07 pm

2 stops14h 17m

$643

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Wed 1/7

10:42 am-10:25 am

2 stops17h 43m

London Heathrow

Thu 1/15

9:00 am-7:03 pm

2 stops16h 03m

$644

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Fri 1/16

10:42 am-7:55 am

1 stop15h 13m

London Heathrow

Wed 1/28

6:35 am-4:47 pm

2 stops16h 12m

$652

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Wed 1/7

10:42 am-6:40 am

2 stops13h 58m

London Heathrow

Wed 1/14

8:30 am-7:03 pm

2 stops16h 33m

$655

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Wed 1/7

10:42 am-11:15 am

1 stop18h 33m

London Heathrow

Wed 1/14

7:40 am-4:47 pm

1 stop15h 07m

$667

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Fri 1/16

10:42 am-8:45 am

2 stops16h 03m

London Heathrow

Wed 1/28

6:35 am-9:31 pm

2 stops20h 56m

$671

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Fri 1/16

10:42 am-5:55 am

1 stop13h 13m

London Heathrow

Wed 1/28

10:25 am-4:47 pm

1 stop12h 22m

$678

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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

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 airlines fly to London Heathrow Airport?

American Airlines, United Airlines and British Airways are the top three most popular airlines that fly to London Heathrow Airport 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 Heathrow Airport. Keep in mind that there are 3 different airlines that fly to London Heathrow Airport on a routine basis, so you have a few additional options to choose from.

When to book flights from Green Bay to London Heathrow Airport

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

Estimated round-trip price

Cheap Green Bay to London Heathrow Airport (GRB to LHR) flight deals and tips

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

Fastest flight time	9h 50m
Direct flights	None

The fastest flight from Green Bay to London Heathrow Airport takes 9h 50m

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

Search flight deals

How far is Green Bay Austin-Straubel to London Heathrow by plane?
Green Bay Austin-Straubel and London Heathrow are 3827.3 mi apart from one another. A reasonable flight in good conditions will take 9h 50m.
When did momondo last update prices for flights from Green Bay Austin-Straubel Airport to London Heathrow Airport?
Prices for flights from Green Bay Austin-Straubel Airport to London Heathrow Airport are updated daily.
How many operators does momondo search for flights from Green Bay Austin-Straubel Airport to London Heathrow Airport?
There are 3 operators available for flights from Green Bay Austin-Straubel Airport to London Heathrow Airport as of December 2025.
How old do you have to be to fly from Green Bay Austin-Straubel Airport to London Heathrow Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Green Bay Austin-Straubel Airport to London Heathrow Airport.
What documentation or ID do you need to fly to London Heathrow Airport?
The travel and health documents you'll need for your trip to London Heathrow Airport 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 Heathrow Airport. 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 Heathrow Airport?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Green Bay to London Heathrow Airport is American Airlines (52% of total bookings). The next most popular airlines are United Airlines (28%) and British Airways (20%).

Best airlines flying from Green Bay to London Heathrow Airport

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

Airline	Rating	Free Cancellation	Price
British Airways	PriceFrom $650	Free Cancellation	Rating 6.7 7,616 reviews	Search British Airways flights
American Airlines	PriceFrom $699	Free Cancellation	Rating 7.2 11,071 reviews	Search American Airlines flights
United Airlines	PriceFrom $701	Free Cancellation	Rating 7.4 9,114 reviews	Search United Airlines flights

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Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to London from Green Bay.

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

Yes. All flights to London from Green Bay on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo helps you find the best flight between Green Bay and London by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

If you are not ready to book a flight from Green Bay to London now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to London and let you know when they change.