GRB - LON

$455 Find Cheap Flights from Green Bay to London - Compare and Save

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 8/8. 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 21% 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
$866
Typical prices: $722-$814
United Airlines
Tue 9/22Tue 10/13
GRB - LHR • 1 stop
Cheapest one-way
$455
Air France
Sat 8/8
GRB - LHR • 1 stop
Top airlines
United Airlines
Cheapest • from $866 (round-trip)
United Airlines
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
Chicago (ORD)
Cheapest • Avg $946 (round-trip)
Detroit (DTW)
Shortest trip • 9h 25m (one-way)
Insights
Insights
Insights
Insights
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

Tue, Sep 22 - Tue, Oct 13
United Airlines Logo
8:05 am - 6:45 am
GRB
-
LHR
16h 40m
1 stop
United Airlines Logo
6:50 am - 2:53 pm
LHR
-
GRB
14h 03m
2 stops
$866United Airlines
Tue, Sep 22 - Tue, Oct 13
United Airlines Logo
1:17 pm - 9:20 am
GRB
-
LHR
14h 03m
2 stops
United Airlines Logo
6:50 am - 2:53 pm
LHR
-
GRB
14h 03m
2 stops
$870United Airlines
Tue, Sep 22 - Tue, Oct 13
United Airlines Logo
1:17 pm - 9:20 am
GRB
-
LHR
14h 03m
2 stops
United Airlines Logo
6:50 am - 2:53 pm
LHR
-
GRB
14h 03m
2 stops
$871United Airlines
Tue, Sep 15 - Fri, Oct 2
Delta Logo
7:00 am - 7:10 am
GRB
-
LHR
18h 10m
1 stop
Delta Logo
8:40 am - 10:29 pm
LHR
-
GRB
19h 49m
2 stops
$876Delta
Tue, Sep 15 - Fri, Oct 2
Delta Logo
5:30 am - 7:15 am
GRB
-
LHR
19h 45m
1 stop
Delta Logo
8:40 am - 9:35 pm
LHR
-
GRB
18h 55m
2 stops
$877Delta
Sun, Sep 13 - Wed, Sep 23
Multiple Airlines Logo
10:05 am - 10:50 am
GRB
-
LHR
18h 45m
1 stop
Multiple Airlines Logo
7:30 pm - 12:13 am
LHR
-
GRB
34h 43m
2 stops
$885Multiple Airlines
Sat, Sep 5 - Sun, Sep 13
Lufthansa Logo
5:29 pm - 7:40 pm
GRB
-
LHR
44h 11m
2 stops
Lufthansa Logo
6:30 am - 11:19 pm
LHR
-
GRB
22h 49m
2 stops
$886Lufthansa
Sun, Sep 13 - Wed, Sep 23
British Airways Logo
8:27 pm - 12:15 pm
GRB
-
LHR
9h 48m
1 stop
British Airways Logo
9:45 am - 12:13 am
LHR
-
GRB
20h 28m
1 stop
$887British Airways
Sat, Nov 21 - Sun, Nov 29
Multiple Airlines Logo
7:52 pm - 2:35 pm
GRB
-
LCY
36h 43m
2 stops
Multiple Airlines Logo
7:15 pm - 7:22 pm
LCY
-
GRB
30h 07m
2 stops
$1,485Multiple Airlines
Thu, Jul 9 - Mon, Jul 13
Lufthansa Logo
6:52 pm - 5:55 pm
GRB
-
LCY
17h 03m
2 stops
Lufthansa Logo
6:30 pm - 4:51 pm
LCY
-
GRB
28h 21m
2 stops
$1,537Lufthansa
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.

What is the cheapest month to fly from Green Bay to London?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Green Bay to London, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Green Bay to London is May, where tickets cost $0 (return) on average. On the other hand, the most expensive months are November and June, where the average cost of round-trip tickets is $4,893 and $1,236 respectively.

Find deals

Good to know

Cheapest flight$455
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 5 days, the lowest price for a flight from Green Bay to London was $455 for a one-way ticket and $866 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.

  • 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 airline 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.
7.4
United AirlinesOverall score based on 9860 reviews
8.1Crew
7.3Comfort
6.7Food
7.1Entertainment
7.7Boarding
Airline reviews

They delayed the flight 3 hours because it wasn't full they moved us to 5 different gates probably the worst airline ever not even spirit is this bad.

2.0 Mediocresilvester, Jun 2026
IAH - BNA
Read more United Airlines reviews

They delayed the flight 3 hours because it wasn't full they moved us to 5 different gates probably the worst airline ever not even spirit is this bad.

Very easy ! Use the kiosk and bag drop and right to security within 10 min

Checking bag at terminal was horrible. No agents to check us in and only 1 kiosk working. Boarding went ok. Crew onboard was very scattered rained. Missed our row while serving and then didn’t see them hardly again.

Crew was amazing, takeoff wonderful. The bathroom was disgusting from before takeoff the odor made the flight uncomfortable as you could smell the bathroom from the center of the plane where we were sitting. Smelled like raw sewage. My daughter was throwing up as we landed due to the smell and horrible turbulence as we approached Newark.

Airline tickets are not cheap. You expect reliable competent service. Thanks to canceled flights and botched transfers we arrived at our destination two days late. This is not acceptable

Horrible! Several delays and then was cancelled! I spent over 24 hours in the airport and was unable to get a hotel or food voucher.

The entertainment they offer could use some games, and maybe they could add some cookies to the snack menu. And the automated messages are a bit repetitive. But it was comfortable temperature wise and the seats were comfortable. The crew is very polite and helpful

The entertainment is a bit limited, it would be better if they added some games to play besides the movies and tv shows. But the seats are comfortable and the crew is polite

This planes staff was top tier. Everything went great and had a great flight home.

Food was great. Staff was phenomenal. Seats were a bit hard and could use a lot more entertainment options as far as movies to choose from. WiFi was good. Overall great trip.

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

Information on your arrival and departure airports

Green Bay (GRB)