GRB - LON

$427 Find Cheap Flights from Green Bay to London

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Green Bay to London departing on 7/9. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to London

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Green Bay to London, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Green Bay to London, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$823
Overall average: $759
United Airlines
Wed 4/29Wed 5/20
GRB - LHR • 1 stop
Cheapest one-way
$427
KLM
Thu 7/9
GRB - LHR • 1 stop
Top airlines
Cheapest • from $823 (round-trip)
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Green Bay and London. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $948 (round-trip)
Shortest trip • 9h 25m (one-way)
Insights
Insights
Insights
Insights
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to London!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Green Bay to London (GRB-LON)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Green Bay to London that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Green Bay to London

Wed, Apr 29 - Wed, May 20
United Airlines Logo
10:40 am - 8:30 am
GRB
-
LHR
15h 50m
1 stop
United Airlines Logo
6:50 am - 7:01 pm
LHR
-
GRB
18h 11m
2 stops
$823United Airlines
Sun, Sep 13 - Wed, Sep 23
Delta Logo
5:30 am - 7:15 am
GRB
-
LHR
19h 45m
1 stop
Delta Logo
9:55 am - 9:58 pm
LHR
-
GRB
18h 03m
2 stops
$825Delta
Thu, Apr 23 - Fri, May 8
Multiple Airlines Logo
5:24 pm - 10:30 am
GRB
-
LHR
11h 06m
1 stop
Multiple Airlines Logo
6:15 am - 11:35 pm
LHR
-
GRB
23h 20m
2 stops
$844Multiple Airlines
Sun, Sep 13 - Wed, Sep 23
Multiple Airlines Logo
9:55 am - 11:15 am
GRB
-
LHR
19h 20m
1 stop
Multiple Airlines Logo
7:30 pm - 5:40 pm
LHR
-
GRB
28h 10m
2 stops
$845Multiple Airlines
Tue, Mar 31 - Tue, Apr 7
British Airways Logo
6:01 am - 7:40 am
GRB
-
LHR
19h 39m
1 stop
British Airways Logo
9:45 am - 11:32 pm
LHR
-
GRB
19h 47m
1 stop
$846British Airways
Wed, Apr 29 - Wed, May 20
British Airways Logo
9:42 am - 11:15 am
GRB
-
LHR
19h 33m
1 stop
British Airways Logo
11:10 am - 4:54 pm
LHR
-
GRB
11h 44m
1 stop
$847British Airways
Mon, May 4 - Mon, May 11
Lufthansa Logo
8:15 pm - 5:55 pm
GRB
-
LCY
15h 40m
2 stops
Lufthansa Logo
9:15 am - 10:58 pm
LCY
-
GRB
19h 43m
2 stops
$928Lufthansa
Sat, May 2 - Sat, May 9
Iberia Logo
9:42 am - 10:50 am
GRB
-
LGW
19h 08m
2 stops
Iberia Logo
8:40 pm - 10:03 pm
LGW
-
GRB
31h 23m
2 stops
$1,020Iberia
Thu, Apr 9 - Tue, Apr 21
Iberia Logo
9:42 am - 10:50 am
GRB
-
LGW
19h 08m
2 stops
Iberia Logo
8:40 pm - 9:58 pm
LGW
-
GRB
31h 18m
2 stops
$1,076Iberia
Wed, Jul 22 - Wed, Jul 29
Lufthansa Logo
5:30 pm - 5:55 pm
GRB
-
LCY
18h 25m
2 stops
Lufthansa Logo
9:15 am - 10:59 pm
LCY
-
GRB
19h 44m
2 stops
$1,208Lufthansa
Booking Insights

KAYAK's insights & trends for Green Bay to London flights

Get data-powered insights and trends into flights from Green Bay to London to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Green Bay to London?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Green Bay to London departing in April.

Good to know

Cheapest flight$427
Most popular time to fly with an average 38% increase in price.
Flight from Green Bay to London Heathrow Airport

When to book flights from Green Bay to London

Are your dates flexible? Find out the best times to travel from Green Bay to London based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Green Bay to London

  • What is the cheapest flight from Green Bay to London?

    In the last 3 days, the lowest price for a flight from Green Bay to London was $427 for a one-way ticket and $823 for a round-trip.

  • Do I need a passport to fly between Green Bay and London?

    Yes, you’ll need a passport to travel to London from Green Bay.

  • Which airports will I be using when flying from Green Bay to London?

    Green Bay is served by only 1 airport and there are 2 airports in London. You will leave Green Bay from Green Bay Austin-Straubel and you will be arriving in London at one of these airports: London Gatwick or London Heathrow.

  • Which aircraft models fly most regularly from Green Bay to London?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Green Bay to London?

    Star Alliance, and oneworld are the airline alliances operating flights between Green Bay and London, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from Green Bay to London, United Airlines or American Airlines?

    The two airlines most popular with KAYAK users for flights from Green Bay to London are United Airlines and American Airlines. With an average price for the route of $835 and an overall rating of 7.4, United Airlines is the most popular choice. American Airlines is also a great choice for the route, with an average price of $949 and an overall rating of 7.1.

  • How does KAYAK find such low prices on flights from Green Bay to London?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Green Bay to London.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Green Bay to London?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London from Green Bay is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Green Bay to London?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to London with an airline and back to Green Bay with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Green Bay to London?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London from Green Bay up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from Green Bay to London

 
See real verified KAYAK customer reviews for airlines flying from Green Bay to London. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Green Bay to London? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9455 reviews
8.1Crew
7.7Boarding
7.3Comfort
6.6Food
7.1Entertainment
Airline reviews

Good quick flight on a small but comfortable plane. I'm 6'3 and had plenty of space.

8.0 ExcellentMatthew, Mar 2026
IAD - CMH
Read more United Airlines reviews

Good quick flight on a small but comfortable plane. I'm 6'3 and had plenty of space.

Experience was great - no complaints. Took off on time, landed early. Got to the gate relatively quickly - took a little bit of extra time to deplane but nothing excessive.

Business class seats felt very cramped compared to other airlines.

Economy plus was so cramped I could not use my laptop. It was beyond bad.

OK, we were delayed and had to de plane and reboard.

United is one airline which regardless of how many separate United tickets in existence, if one flight breaks down, the airline will take care of all the flights.

Both our flights were delayed. Almost didn’t get in the second flight. Staff was rude to the bone.

Both my flight where delayed Had 25min to make it to my transfer flight

Everything was on time and service on the flight was great!

Wifi Bluetooth features for watching in flight movie was horrible. Screen kept blacking out no connection of sound although it said connected. Other than that smooth trip .

My flight to London from Philadelphia was cancelled due to weather.

Disliked having to wait a little longer to disembark from the plan when we landed in London

Food should be better quality. Video screens have poor resolution and the library of movies is poor. The other airlines are much better.

The trip was smooth but the crew were very abrupt, snatching things before finished and being quite snappy when asked questions.

My wife and I love to travel, so we fly a lot. We've already logged 381,075 miles and with practically every major airline. But this flight was very disappointing. It started off well, with no delays and a new plane. But when lunchtime approached, all that good impression was ruined. Instead of white tablecloths, we were offered small, dark placemats, which, as it turned out, were perfectly adequate for the food. All the food offered—and my wife and I only took fish, and the meat—was not just bad, it was downright disgusting and not heated enough. The same applies to the appetizers. This was the first time in many years of traveling that we've been offered such disgusting food.

Lost luggage stuck no clothes and no word after 2 days leaving on cruise no stuff or clothes

Don’t know they cancelled the flight day before I was to leave. They sent a email at 9:00 pm at night saying they cancelled. That is the smooth way to say we don’t want your business! I think they didn’t have enough people booking so they cancelled the flight! It’s all about the money anymore there is no honesty in business.

The flight was canceled 3 hours after original take off time

Pathetic check in experience at JFK. Everything is self check in. Not enough staff present to help with when the check in process or the kiosk gets stuck. Staff present not welcoming or pleasant at all. On the other hand the NY based flight crew was great. Courteous and friendly throughout the flight. Special meals leave a lot to be desired. Kids meals should be made available when kids are flying and same goes for special kids meals too.

Flight was full, and would have preferred an aisle seat, but due to getting a late ticket ,the seat I had was adequate. The flight crew were very help full and hard working. Food and drink were excellent for the 11hr flight. Overall I was pleased with flight, and would recommend British Airways again.

WiFi wasn’t available to economy until the end of the flight.

Very good staff members with sincere passion and responsibility in their job.

Very please with the seating that the Kayak staff booked for us!

Worth every penny to upgrade to BC. Treated and felt more like First Class

Good service, food and comfort in World Traveller Plus. Entertainment was poor - no wifi on the way out and barely working on the way back. Not a great choice of entertainment on the seat back tv.

They had us seating down for one hour just waiting on the plane

Flying with BA is always a good experience—even in economy class. It is better if in business and first class. Timely, breeze through security and timely connections

We waited at BOS at the gate for an hour and couldn’t get a drink or anything. Once in the air the service, food and ride was excellent.

My enetertainmnet screen was broken. Lost my bags. Almost missed my flight do to connection issues with (despite a request) ZERO help from crew. Food was edible. Potatoes pretty good even

The issue was not with BA it was with the link yoiu sent fopr booking the flight

Everything you need to know for your flight from Green Bay to London

Information on your arrival and departure airports