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

Delta is the most popular carrier operating from Green Bay Austin-Straubel to London

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 53% 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.

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 May 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.

$599 Cheap Flights from Green Bay to London in 2026

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Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Green Bay to London

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

2:51 pm - 7:40 am

GRB

LHR

10h 49m

1 stop

6:15 am - 11:07 pm

LHR

GRB

22h 52m

2 stops

$863Iberia

Sun, Sep 13 - Wed, Sep 23

6:29 pm - 10:50 am

GRB

LHR

10h 21m

1 stop

6:15 am - 11:07 pm

LHR

GRB

22h 52m

2 stops

$864Iberia

Sun, Sep 13 - Wed, Sep 23

5:30 am - 6:25 am

GRB

LHR

18h 55m

1 stop

6:30 am - 4:33 pm

LHR

GRB

16h 03m

2 stops

$878Delta

Mon, Sep 7 - Fri, Sep 25

5:30 am - 6:25 am

GRB

LHR

18h 55m

1 stop

6:30 am - 3:32 pm

LHR

GRB

15h 02m

2 stops

$879KLM

Mon, Sep 7 - Fri, Sep 25

4:00 pm - 1:15 pm

GRB

LHR

15h 15m

2 stops

6:30 am - 4:33 pm

LHR

GRB

16h 03m

2 stops

$882Delta

Mon, Sep 7 - Fri, Sep 25

5:30 am - 1:15 pm

GRB

LHR

25h 45m

1 stop

9:55 am - 9:58 pm

LHR

GRB

18h 03m

2 stops

$883Delta

Tue, Sep 15 - Fri, Oct 2

3:21 pm - 8:05 am

GRB

LHR

10h 44m

1 stop

9:45 am - 11:07 pm

LHR

GRB

19h 22m

1 stop

$892British Airways

Mon, Sep 7 - Fri, Sep 25

9:55 am - 10:50 am

GRB

LHR

18h 55m

1 stop

9:45 am - 5:40 pm

LHR

GRB

13h 55m

1 stop

$893British Airways

Sun, Sep 13 - Wed, Sep 23

8:30 pm - 5:55 pm

GRB

LCY

15h 25m

2 stops

9:15 am - 10:49 pm

LCY

GRB

19h 34m

2 stops

$1,039Lufthansa

Mon, Sep 7 - Fri, Sep 25

8:30 pm - 5:55 pm

GRB

LCY

15h 25m

2 stops

9:15 am - 10:59 pm

LCY

GRB

19h 44m

2 stops

$1,132Lufthansa

Sun, Aug 16 - Wed, Aug 26

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KLM flights from Green Bay to London

Our best KLM deals on Green Bay to London flight tickets

KLM

Sep 7

GRB5:30 amGreen Bay Austin-Straubel

18h 55m

1 stop

LHR6:25 amLondon Heathrow

Sep 25

LHR6:30 amLondon Heathrow

15h 02m

2 stops

GRB3:32 pmGreen Bay Austin-Straubel

$879

KLM

Oct 14

GRB5:30 amGreen Bay Austin-Straubel

18h 55m

1 stop

LHR6:25 amLondon Heathrow

Oct 27

LHR8:55 amLondon Heathrow

18h 02m

1 stop

GRB9:57 pmGreen Bay Austin-Straubel

$907

KLM

Jul 22

GRB12:05 pmGreen Bay Austin-Straubel

19h 00m

1 stop

LHR1:05 pmLondon Heathrow

Jul 29

LHR3:15 pmLondon Heathrow

13h 33m

1 stop

GRB10:48 pmGreen Bay Austin-Straubel

$1,066

United Airlines flights from Green Bay to London

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

United Airlines

Sep 15

GRB2:30 pmGreen Bay Austin-Straubel

14h 10m

2 stops

LHR10:40 amLondon Heathrow

Oct 2

LHR6:50 amLondon Heathrow

23h 29m

2 stops

GRB12:19 amGreen Bay Austin-Straubel

$1,015

United Airlines

Aug 30

GRB1:15 pmGreen Bay Austin-Straubel

11h 30m

1 stop

LHR6:45 amLondon Heathrow

Sep 12

LHR6:50 amLondon Heathrow

14h 17m

2 stops

GRB3:07 pmGreen Bay Austin-Straubel

$1,101

United Airlines

Aug 30

GRB2:30 pmGreen Bay Austin-Straubel

14h 10m

2 stops

LHR10:40 amLondon Heathrow

Sep 12

LHR6:50 amLondon Heathrow

16h 06m

2 stops

GRB4:56 pmGreen Bay Austin-Straubel

$1,105

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Sun 9/13

2:51 pm-7:40 am

1 stop10h 49m

London Heathrow

Wed 9/23

6:15 am-11:07 pm

2 stops22h 52m

$863

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Sun 9/13

6:29 pm-10:50 am

1 stop10h 21m

London Heathrow

Wed 9/23

6:15 am-11:07 pm

2 stops22h 52m

$864

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Mon 9/7

5:30 am-6:25 am

1 stop18h 55m

London Heathrow

Fri 9/25

6:30 am-4:33 pm

2 stops16h 03m

$878

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Mon 9/7

5:30 am-6:25 am

1 stop18h 55m

London Heathrow

Fri 9/25

6:30 am-3:32 pm

2 stops15h 02m

$879

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Mon 9/7

4:00 pm-1:15 pm

2 stops15h 15m

London Heathrow

Fri 9/25

6:30 am-4:33 pm

2 stops16h 03m

$882

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Tue 9/15

5:30 am-1:15 pm

1 stop25h 45m

London Heathrow

Fri 10/2

9:55 am-9:58 pm

2 stops18h 03m

$883

Quickest round-trip

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Mon 9/7

3:21 pm-8:05 am

1 stop10h 44m

London Heathrow

Fri 9/25

9:45 am-11:07 pm

1 stop19h 22m

$892

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Sun 9/13

9:55 am-10:50 am

1 stop18h 55m

London Heathrow

Wed 9/23

9:45 am-5:40 pm

1 stop13h 55m

$893

Green BayLondon

GRB - LCY

GRBLCY

Green Bay Austin-Straubel

Mon 9/7

8:30 pm-5:55 pm

2 stops15h 25m

London City

Fri 9/25

9:15 am-10:49 pm

2 stops19h 34m

$1,039

Green BayLondon

GRB - LCY

GRBLCY

Green Bay Austin-Straubel

Sun 8/16

8:30 pm-5:55 pm

2 stops15h 25m

London City

Wed 8/26

9:15 am-10:59 pm

2 stops19h 44m

$1,132

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 11 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 $650, are often lower during this time because this is during the off-season. The month of March is another great option to travel to London, with average flight prices from Green Bay averaging around $655.

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

You could potentially save up to 13% 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

Fastest flight time	11h 06m
Direct flights	None

The fastest flight from Green Bay to London takes 11h 06m

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

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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 11h 06m.
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 May 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.
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 (100% of total bookings).

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 7,949 reviews	Search British Airways flights
American Airlines	PriceFrom $697	Free Cancellation	Rating 7.1 11,669 reviews	Search American Airlines flights
United Airlines	PriceFrom $722	Free Cancellation	Rating 7.4 9,690 reviews	Search United Airlines flights

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Luton

Hayes

Crawley

Slough

Wembley

Stansted

Watford

Croydon

Uxbridge

Brentwood

Dartford

Cobham

Folkestone

Romford

Harrow

Guildford

Why use momondo?

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

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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 $599

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 7/28. 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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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

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

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

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Direct flights

Frequently asked questions about flying from Green Bay to London

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

Traveling to a place near London?

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

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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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