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Cheap flights from Green Bay to London from $628

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 9/24. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Green Bay to London (GRB-LHR)

Cheap round-trip flights

British Airways Logo
4:35 pm - 9:10 amGRB-LHR
10h 35m1 stop
British Airways Logo
6:15 am - 5:56 pmLHR-GRB
17h 41m2 stops
$628British Airways
Find Deal
Wed, Sep 24 - Fri, Oct 3
United Airlines Logo
8:00 am - 7:55 amGRB-LHR
17h 55m1 stop
United Airlines Logo
6:35 am - 7:47 pmLHR-GRB
19h 12m2 stops
$635United Airlines
Find Deal
Mon, Nov 10 - Wed, Nov 19
United Airlines Logo
8:00 am - 9:35 amGRB-LHR
19h 35m2 stops
United Airlines Logo
6:50 am - 4:50 pmLHR-GRB
16h 00m2 stops
$639United Airlines
Find Deal
Wed, Sep 24 - Fri, Oct 3
United Airlines Logo
10:40 am - 6:55 amGRB-LHR
14h 15m2 stops
United Airlines Logo
6:50 am - 4:50 pmLHR-GRB
16h 00m2 stops
$644United Airlines
Find Deal
Wed, Sep 24 - Fri, Oct 3
British Airways Logo
4:35 pm - 9:10 amGRB-LHR
10h 35m1 stop
British Airways Logo
9:15 am - 2:31 pmLHR-GRB
11h 16m1 stop
$645British Airways
Find Deal
Wed, Sep 24 - Fri, Oct 3
American Airlines Logo
4:39 pm - 11:05 amGRB-LHR
12h 26m1 stop
American Airlines Logo
1:10 pm - 7:38 pmLHR-GRB
12h 28m1 stop
$750American Airlines
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Fri, Oct 3 - Sun, Oct 12
Delta Logo
11:07 am - 10:00 amGRB-LHR
16h 53m2 stops
Delta Logo
10:55 am - 11:00 pmLHR-GRB
18h 05m2 stops
$763Delta
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Wed, Sep 24 - Fri, Oct 3
Delta Logo
7:00 am - 9:00 amGRB-LHR
20h 00m2 stops
Delta Logo
11:30 am - 8:38 pmLHR-GRB
15h 08m2 stops
$806Delta
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Fri, Nov 28 - Thu, Dec 4
KLM Logo
12:06 pm - 1:10 pmGRB-LHR
19h 04m1 stop
KLM Logo
12:25 pm - 9:53 pmLHR-GRB
15h 28m1 stop
$809KLM
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Sun, Aug 24 - Sun, Aug 31
KLM Logo
12:06 pm - 1:10 pmGRB-LHR
19h 04m1 stop
KLM Logo
6:30 am - 3:40 pmLHR-GRB
15h 10m2 stops
$815KLM
Find Deal
Sun, Aug 24 - Sun, Aug 31

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
Sep 24
GRB4:35 pmGreen Bay Austin-Straubel
10h 35m
1 stop
LHR9:10 amLondon Heathrow
Oct 3
LHR6:15 amLondon Heathrow
17h 41m
2 stops
GRB5:56 pmGreen Bay Austin-Straubel
$628
Find similar
British Airways
Sep 24
GRB4:35 pmGreen Bay Austin-Straubel
10h 35m
1 stop
LHR9:10 amLondon Heathrow
Oct 3
LHR9:15 amLondon Heathrow
11h 16m
1 stop
GRB2:31 pmGreen Bay Austin-Straubel
$645
Find similar
British Airways
Sep 24
GRB4:35 pmGreen Bay Austin-Straubel
12h 30m
1 stop
LHR11:05 amLondon Heathrow
Oct 3
LHR6:15 amLondon Heathrow
17h 41m
2 stops
GRB5:56 pmGreen Bay Austin-Straubel
$672
Find similar

Delta flights from Green Bay to London Heathrow Airport

Our best Delta deals on Green Bay to London Heathrow Airport flight tickets
Delta
Sep 24
GRB11:07 amGreen Bay Austin-Straubel
16h 53m
2 stops
LHR10:00 amLondon Heathrow
Oct 3
LHR10:55 amLondon Heathrow
18h 05m
2 stops
GRB11:00 pmGreen Bay Austin-Straubel
$763
Find similar
Delta
Nov 28
GRB7:00 amGreen Bay Austin-Straubel
20h 00m
2 stops
LHR9:00 amLondon Heathrow
Dec 4
LHR11:30 amLondon Heathrow
15h 08m
2 stops
GRB8:38 pmGreen Bay Austin-Straubel
$806
Find similar
Delta
Oct 16
GRB5:20 pmGreen Bay Austin-Straubel
14h 10m
2 stops
LHR1:30 pmLondon Heathrow
Oct 24
LHR8:10 pmLondon Heathrow
20h 16m
2 stops
GRB10:26 amGreen Bay Austin-Straubel
$813
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Green Bay to London Heathrow Airport that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated August 12, 2025.
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 9/24

4:35 pm-9:10 am

1 stop10h 35m

London Heathrow

Fri 10/3

6:15 am-5:56 pm

2 stops17h 41m

$628

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Mon 11/10

8:00 am-7:55 am

1 stop17h 55m

London Heathrow

Wed 11/19

6:35 am-7:47 pm

2 stops19h 12m

$635

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Wed 9/24

8:00 am-9:35 am

2 stops19h 35m

London Heathrow

Fri 10/3

6:50 am-4:50 pm

2 stops16h 00m

$639

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Wed 9/24

10:40 am-6:55 am

2 stops14h 15m

London Heathrow

Fri 10/3

6:50 am-4:50 pm

2 stops16h 00m

$644

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Wed 9/24

4:35 pm-9:10 am

1 stop10h 35m

London Heathrow

Fri 10/3

9:15 am-2:31 pm

1 stop11h 16m

$645

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Fri 10/3

4:39 pm-11:05 am

1 stop12h 26m

London Heathrow

Sun 10/12

1:10 pm-7:38 pm

1 stop12h 28m

$750

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Wed 9/24

11:07 am-10:00 am

2 stops16h 53m

London Heathrow

Fri 10/3

10:55 am-11:00 pm

2 stops18h 05m

$763

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Fri 11/28

7:00 am-9:00 am

2 stops20h 00m

London Heathrow

Thu 12/4

11:30 am-8:38 pm

2 stops15h 08m

$806

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Sun 8/24

12:06 pm-1:10 pm

1 stop19h 04m

London Heathrow

Sun 8/31

12:25 pm-9:53 pm

1 stop15h 28m

$809

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Sun 8/24

12:06 pm-1:10 pm

1 stop19h 04m

London Heathrow

Sun 8/31

6:30 am-3:40 pm

2 stops15h 10m

$815

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to London from

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 is the cheapest day to depart on your flight to London Heathrow Airport?

Our data shows that Thursday is the least expensive day to fly to London Heathrow Airport. Tickets to fly out on this day can be as low as $802. The most expensive day to fly to London Heathrow Airport is Monday, with ticket prices averaging around $1,460.

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

According to our data, the cheapest time of day to fly to London Heathrow Airport is in the morning. momondo users have found flights departing from Green Bay to London Heathrow Airport in the morning for as low as $944. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the afternoon are often more expensive with an average ticket price of $947.

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

Best Price Found

$628

Fastest flight time

10h 04m

Direct flights

None
The best flight deal from Green Bay to London Heathrow Airport found on momondo in the last 72 hours is $628
The fastest flight from Green Bay to London Heathrow Airport takes 10h 04m
There are no direct flights from Green Bay to London Heathrow Airport. Popular non-direct route for this connection is Green Bay Austin-Straubel Airport - 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 10h 04m.

  • 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?

  • 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?

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 AirwaysPriceFrom $650Free CancellationRating
6.6
7,265 reviews
Search British Airways flights
American AirlinesPriceFrom $699Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $701Free CancellationRating
7.4
8,920 reviews
Search United Airlines flights

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Hounslow
Gatwick
Dover
Slough
Luton
Guildford
Milton Keynes
Dartford
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Hayes
Chelmsford
Stansted
Salisbury
Brentwood
Ilford
Swindon
Colchester
Folkestone
Stratford-upon-Avon
Watford

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.

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