GRB - LON

$531 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 3/12. 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
Travelers love KAYAK
41.299.237 searches in the past 7 days on KAYAK

Save 24% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$687
United Airlines
Fri 1/23Tue 1/27
GRB - LHR • 1 stop
Cheapest one-way
$531
United Airlines
Thu 3/12
GRB - LHR • 1 stop
Top airlines
Lufthansa
Cheapest • from $606 (round-trip)
American Airlines
Best reviews • 7.2 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Start a new search
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

Fri, Jan 23 - Tue, Jan 27
United Airlines Logo
3:42 pm - 7:55 am
GRB
-
LHR
10h 13m1 stop
United Airlines Logo
6:35 am - 4:47 pm
LHR
-
GRB
16h 12m2 stops
$687United Airlines
Fri, Jan 23 - Tue, Jan 27
United Airlines Logo
2:39 pm - 10:50 am
GRB
-
LHR
14h 11m2 stops
United Airlines Logo
6:35 am - 4:47 pm
LHR
-
GRB
16h 12m2 stops
$692United Airlines
Fri, Jan 23 - Tue, Jan 27
United Airlines Logo
2:39 pm - 7:55 am
GRB
-
LHR
11h 16m1 stop
United Airlines Logo
7:25 am - 4:47 pm
LHR
-
GRB
15h 22m1 stop
$716United Airlines
Wed, May 13 - Sat, May 23
Delta Logo
7:00 am - 7:15 am
GRB
-
LHR
18h 15m2 stops
Delta Logo
6:15 am - 4:33 pm
LHR
-
GRB
16h 18m2 stops
$755Delta
Wed, May 13 - Sat, May 23
Delta Logo
7:00 am - 7:15 am
GRB
-
LHR
18h 15m2 stops
Delta Logo
12:25 pm - 9:26 pm
LHR
-
GRB
15h 01m1 stop
$776Delta
Wed, May 13 - Sat, May 23
Delta Logo
7:00 am - 7:15 am
GRB
-
LHR
18h 15m2 stops
Delta Logo
10:55 am - 9:58 pm
LHR
-
GRB
17h 03m1 stop
$777Delta
Wed, May 13 - Sat, May 23
KLM Logo
11:53 am - 1:10 pm
GRB
-
LHR
19h 17m1 stop
KLM Logo
12:25 pm - 9:26 pm
LHR
-
GRB
15h 01m1 stop
$846KLM
Wed, May 13 - Sat, May 23
British Airways Logo
11:30 am - 9:05 am
GRB
-
LHR
15h 35m1 stop
British Airways Logo
9:15 am - 11:07 pm
LHR
-
GRB
19h 52m1 stop
$873British Airways
Fri, Jun 12 - Sun, Jul 12
Iberia Logo
6:32 pm - 6:30 pm
GRB
-
LCY
41h 58m2 stops
Iberia Logo
4:20 pm - 5:40 pm
LCY
-
GRB
31h 20m2 stops
$3,019Iberia
Fri, Jun 12 - Sun, Jul 12
Iberia Logo
6:32 pm - 6:30 pm
GRB
-
LCY
41h 58m2 stops
Iberia Logo
4:20 pm - 11:08 pm
LCY
-
GRB
36h 48m2 stops
$3,020Iberia
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.

Which airlines provide the cheapest flights from Green Bay to London?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Green Bay to London were found on Lufthansa ($606) and United Airlines ($642).

Which airlines fly non-stop between Green Bay and London?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for round-trip flights from Green Bay to London.

There are 3 airlines that fly nonstop from Green Bay to London. They are: American Airlines, British Airways and United Airlines. The cheapest price of all airlines flying this route was found with British Airways at $650 for a round-trip flight. On average, the best prices for this route can be found at British Airways.

Good to know

Cheapest flight$531
Most popular time to fly and prices are also 12% lower on average.
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 $531 for a one-way ticket and $606 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, American Airlines or British Airways?

    The two airlines most popular with KAYAK users for flights from Green Bay to London are American Airlines and British Airways. With an average price for the route of $876 and an overall rating of 7.2, American Airlines is the most popular choice. British Airways is also a great choice for the route, with an average price of $796 and an overall rating of 6.7.

  • 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 airlines flying 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.
7.2
American AirlinesOverall score based on 11055 reviews
8.0Crew
7.5Boarding
6.9Entertainment
7.2Comfort
6.5Food
Airline reviews

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

10.0 ExcellentLESTER, Oct 2025
JFK - LHR
Read more American Airlines reviews

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.

The chicken adobo was a little too spicy but good otherwise. My personal opinion. Movie selection could be improved, too many horror movies. Could add a few more chick flicks! The flight was bumpy at times. We arrived a little early too! Flight attendants friendly.

The cramped seats are cruel and unusual punishment and may violate the Geneva code.

Check in was was and the agent was very friendly and helpful The lounge was nice...boarding was straight from the lounge Everything worked at our seats, and video entertainment was good ..food was mediocre

The flight was excellent in World Travellor plus. Well worth the extra money. Boarding at Phoenix was the usual poorly organized event. Very stressful.

Although business class, the seating was really cramped. The food was so so.

Smooth trip no turbulence which is always a bonus for me lol! In cattle class so an element of being a bit squished (but not as bad as other shorter haul airlines) smaller plane than the one we flew out on and entertainment system wasn’t as modern but still definitely passed the time. Lovely crew x

Flying on the Boeing 787 from Seattle to London was everything that I expected. Every thing was great.

Seat pitch is not enough to eat comfortably. When seat in front is reclined, your screen comes closer to your face. Ryanair seats are actually more comfortable.

The leg from Portland to Heathrow was great for a business class ticket. The BA leg from Heathrow to Lisbon was terrible. Basically coach seating with an empty seat between you and next passenger. Absolutely no leg room. Should not have been charged for business class and it was a 3 hour flight.

The flat beds. Other than that, the place was not clean.

Moved me away from my family and refused to fix it.

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

Information on your arrival and departure airports