GRB - LON

$623 Find Cheap Flights from Green Bay to London

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Green Bay to London departing on 10/21. 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

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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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, Oct 21 - Tue, Nov 4
Delta Logo
7:00 am - 8:55 amGRB-LHR
19h 55m1 stop
Delta Logo
6:20 am - 8:37 pmLHR-GRB
20h 17m2 stops
$623Delta
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Tue, Oct 21 - Tue, Nov 4
Delta Logo
7:00 am - 6:25 amGRB-LHR
17h 25m2 stops
Delta Logo
9:00 am - 10:52 pmLHR-GRB
19h 52m2 stops
$628Delta
Find Deal
Tue, Oct 21 - Tue, Nov 4
KLM Logo
5:30 am - 6:45 amGRB-LHR
19h 15m1 stop
KLM Logo
8:55 am - 10:52 pmLHR-GRB
19h 57m1 stop
$631KLM
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Fri, Oct 31 - Fri, Nov 7
Virgin Atlantic Logo
4:16 pm - 7:05 amGRB-LHR
9h 49m1 stop
Virgin Atlantic Logo
11:05 am - 9:24 pmLHR-GRB
16h 19m1 stop
$647Virgin Atlantic
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Fri, Nov 28 - Thu, Dec 4
Virgin Atlantic Logo
11:10 am - 8:45 amGRB-LHR
15h 35m1 stop
Virgin Atlantic Logo
8:55 am - 10:38 pmLHR-GRB
19h 43m1 stop
$648Virgin Atlantic
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Tue, Oct 21 - Mon, Nov 3
American Airlines Logo
9:44 am - 7:20 amGRB-LHR
15h 36m1 stop
American Airlines Logo
11:00 am - 7:22 pmLHR-GRB
14h 22m1 stop
$718American Airlines
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Thu, Oct 16 - Fri, Oct 24
British Airways Logo
3:02 pm - 10:30 amGRB-LHR
13h 28m1 stop
British Airways Logo
3:30 pm - 11:30 pmLHR-GRB
14h 00m1 stop
$768British Airways
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Sat, Sep 27 - Mon, Oct 6
British Airways Logo
4:35 pm - 10:30 amGRB-LHR
11h 55m1 stop
British Airways Logo
8:00 pm - 7:38 pmLHR-GRB
29h 38m2 stops
$908British Airways
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Sat, Nov 1 - Sun, Nov 9
American Airlines Logo
5:17 pm - 12:00 pmGRB-LHR
13h 43m1 stop
American Airlines Logo
11:00 am - 8:29 pmLHR-GRB
15h 29m1 stop
$1,002American Airlines
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Fri, Nov 21 - Fri, Nov 28
KLM Logo
5:15 am - 7:50 amGRB-LHR
20h 35m1 stop
KLM Logo
8:55 am - 10:38 pmLHR-GRB
19h 43m1 stop
$1,143KLM
Find Deal

Everything you should know

Top airlines
Delta
Cheapest • from $623 (round-trip)
American Airlines
Best reviews • 7.2 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Cheapest round-trip
$623
Typical prices: $735-751
Delta
Tue 10/21Tue 11/4
GRB - LHR • 1 stop
Cheapest one-way
$643
KLM
Fri 12/26
GRB - LHR • 1 stop
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KAYAK searches 100s of sites at once to find you the best travel deals.
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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 Delta ($623) and KLM ($631).

Good to know

Low seasonAugust
Cheapest flight$623
Best time to beat the crowds with an average 23% drop in price.
Most popular time to fly and prices are also 13% 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 $643 for a one-way ticket and $623 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?

    SkyTeam, Star Alliance, and oneworld are the airline alliances operating flights between Green Bay and London, with SkyTeam 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 $902 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 10000 reviews
7.5Boarding
7.2Comfort
8.0Crew
6.9Entertainment
6.4Food
Airline reviews

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.

2.0 MediocreAnonymous, Sep 2025DEN - LHR
Read more American Airlines reviews

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.

More choices on menu. Seemed only thing offered was Scottish, and while that’s good for the Scot’s it doesn’t help the Americans who don’t like that food. And I really hate it when, during sleep time the attendants have a very loud conversation right over you. Lastly, I paid 5000 dollars for business class, and having to pay more to choose my seat early is really an insult. Seems greedy

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.

Again flight was awesome except British Airways lost both gate checked luggage’s. Still missing

really bad they refused to check in luggages that I had purchased, even showing them the transaction receipt from british airways app the staff in miami was MEDIOCRE

Crew was great and responsive. Entertainment quit working with about 4 hours remaining on the flight. My seat cushion was broken.

Not very good , the stewardess were unfriendly and they don't like to be bothered. Cos was a night flight and they need to sleep.

The seating has become ridiculous… like a contest to see how narrow and short they can be made- forcing anyone over 5’1 to pay more to not be twisting oneself into a pretzel. Really insane- would have thought BA was better than this. Frankly- it cancels out a lot of the positive aspects.

flight was delayed from BWI to London - missed my connecting flight & then connecting flight (also British Air) was delayed - food is awful, TV & movie selection is great

Super tight economy class. My knees were hitting the back of seat in front of me (I'm only 5'6"). My small backpack (sized according to their required dimensions) would not fit under the seat in front of me because there is a box (is that the life jacket?) in the way. Over all, extremely uncomfortable. I forgive the tasteless food, but the tight seating was torture

Didn’t fly with them as someone had cancelled my flight

Online check-in 24 hours in advance something seems not so easy to check in to pick seats and to print a boarding pass

I like the crew, very welcoming. Food can be better. The seat arms don’t go up so. I could use the empty seat next to mine to relax better. 3hrs delay 😠

Boarding was efficient and quick, crew was very attentive, seats were comfortable.

Everything was very good! I personally struggled with the heat in the cabin for the first 2 hours

Very caring crew on board. Didn’t have dinner as I was sleeping. Was seating in the emergency row so I had comfortable leg room

Had a nice little suite although I couldn’t close the door (but I didn’t ask anyone to help). 5K is a nice seat and very private (you look in on first class). Enjoyable flight and nice crew.

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

Information on your arrival and departure airports

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