GRB - LHR

$626 Find Cheap Flights from Green Bay to London Heathrow Airport

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 Heathrow departing on 9/24. 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 Heathrow Airport

 
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 22% 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.

Flights Deals
Booking Insights
Flights Deals

Cheap Flights from Green Bay to Heathrow (GRB-LHR)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Green Bay to Heathrow 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 Heathrow

Wed, Sep 24 - Fri, Oct 3
United Airlines Logo
8:00 am - 9:35 amGRB-LHR
19h 35m2 stops
United Airlines Logo
2:05 pm - 2:04 pmLHR-GRB
29h 59m2 stops
$626United Airlines
Find Deal
Wed, Sep 24 - Fri, Oct 3
United Airlines Logo
6:15 am - 9:35 amGRB-LHR
21h 20m2 stops
United Airlines Logo
4:00 pm - 12:44 pmLHR-GRB
26h 44m2 stops
$632United Airlines
Find Deal
Wed, Sep 24 - Fri, Oct 3
British Airways Logo
4:35 pm - 11:05 amGRB-LHR
12h 30m1 stop
British Airways Logo
9:15 am - 2:31 pmLHR-GRB
11h 16m1 stop
$642British Airways
Find Deal
Fri, Nov 28 - Thu, Dec 4
Virgin Atlantic Logo
4:00 pm - 12:15 pmGRB-LHR
14h 15m1 stop
Virgin Atlantic Logo
10:45 am - 9:58 pmLHR-GRB
17h 13m1 stop
$660Virgin Atlantic
Find Deal
Fri, Nov 28 - Thu, Dec 4
Virgin Atlantic Logo
4:00 pm - 12:15 pmGRB-LHR
14h 15m1 stop
Virgin Atlantic Logo
8:50 am - 8:38 pmLHR-GRB
17h 48m2 stops
$663Virgin Atlantic
Find Deal
Wed, Sep 24 - Tue, Sep 30
British Airways Logo
4:35 pm - 11:05 amGRB-LHR
12h 30m1 stop
British Airways Logo
2:25 pm - 5:56 pmLHR-GRB
33h 31m1 stop
$678British Airways
Find Deal
Fri, Nov 28 - Thu, Dec 4
Delta Logo
7:00 am - 6:55 amGRB-LHR
17h 55m2 stops
Delta Logo
6:20 am - 4:32 pmLHR-GRB
16h 12m2 stops
$695Delta
Find Deal
Thu, Oct 16 - Fri, Oct 24
Delta Logo
5:20 pm - 1:30 pmGRB-LHR
14h 10m2 stops
Delta Logo
11:45 am - 11:43 pmLHR-GRB
17h 58m2 stops
$710Delta
Find Deal
Tue, Sep 9 - Mon, Sep 15
Lufthansa Logo
1:22 pm - 10:40 amGRB-LHR
15h 18m2 stops
Lufthansa Logo
8:25 pm - 3:09 pmLHR-GRB
24h 44m2 stops
$5,967Lufthansa
Find Deal
Tue, Sep 9 - Mon, Sep 15
Lufthansa Logo
5:30 pm - 6:25 pmGRB-LHR
18h 55m2 stops
Lufthansa Logo
8:25 pm - 3:09 pmLHR-GRB
24h 44m2 stops
$6,354Lufthansa
Find Deal
Booking Insights

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

Get data-powered insights and trends into flights from Green Bay to Heathrow 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 Heathrow Airport?

Good to know

Low seasonOctober
Cheapest flight$626
Best time to beat the crowds with an average 33% drop in price.
Most popular time to fly with an average 51% increase in price.
Flight from Green Bay to London Heathrow Airport

When to book flights from Green Bay to Heathrow

Are your dates flexible? Find out the best times to travel from Green Bay to Heathrow 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 Green Bay to London Heathrow Airport flights

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

    In the last 3 days, the lowest price for a flight from Green Bay to London Heathrow Airport was $626 for a round-trip ticket.

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

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

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

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

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

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

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

    The two airlines most popular with KAYAK users for flights from Green Bay to London are United Airlines and British Airways. With an average price for the route of $857 and an overall rating of 7.4, United Airlines is the most popular choice. British Airways is also a great choice for the route, with an average price of $840 and an overall rating of 6.6.

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

    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 Heathrow Airport.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London Heathrow Airport 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 Heathrow Airport?

    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 Heathrow Airport with an airline and back to Green Bay with another airline. Booking your flights between Green Bay and LHR can sometimes prove cheaper using this method.

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

    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 Heathrow Airport 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 Heathrow

 
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 Heathrow? 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 8904 reviews
7.3Comfort
7.7Boarding
8.1Crew
6.6Food
7.1Entertainment
Airline reviews

Staff members were not helpful they ignored all calls for an attendant.

4.0 OkayOil, Aug 2025MIA - BKK
Read more United Airlines reviews

Staff members were not helpful they ignored all calls for an attendant.

Flight was delayed and missed my connection Lufthansa didn’t respond.

Terrible. Delayed 7 hours, and cancelled the flight, leaving me stranded and out of pocket $500 for an alternative last minute flight

Was on time until within 1 hour of flight-how does that happen? Staff very friendly.

the delay for 3 hours was understandable due to weather conditions but the flight should’ve provided some on flight compensations or at least provide more food.

Weather delay in Chicago?. No sense of urgency to make connection in Chicago for our connecting flight that wasn't delayed. Connection was missed.

Our flight was understandably diverted to a small regional airport in Laramie, Wyoming due to weather conditions, which I fully recognize and appreciate. However, the low rating stems from the experience that followed: passengers remained on board for over an hour without the option to deplane and stretch, despite the aircraft being stationary. Although the pilot opened the cabin door, only he was permitted to exit. Meanwhile, passengers grew increasingly uncomfortable as warm summer air entered the cabin through the open door, and being in the second row meant we were impacted immediately. While the flight attendants made efforts to keep everyone at ease, I believe allowing passengers to deplane briefly, given the extended delay, would have significantly improved the overall experience.

I never flew. Flight was canceled. DIA worst airport in the country. Avoid at all costs.

I learned that seating towards the end of plane that a line forms for the restroom and people use your chair as a hand railing, bumping your seat consistently. I was seated in the aisle. I think that next time if I am towards the back row I would want to sit in the middle or window seat.

The best airline I have ever travel , really good customer service, attention and service !!

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.

British Airways staff are very polite and willing to help.

This particular flight wasn't very full at the back, so there were three seats available for spreading out and getting relatively comfortable

Flight was delayed. Though I checked in with BA live chat three times, our special meals were not provided.

My experience with British Airways is excellent, thanks for all 🫶🏻✈️

The crew is very friendly and helpful. The food is good for airplane food. The flight is long and hard to sleep. The leg space is great. The plane arrived in plenty of time.

Enjoyable flight, helpful crew everything was organized to accommodate passengers.

Captain sick. Unable to get replacement so delayed me 30 hours, many others delayed 54 hours. TOTALLY DESTROYED ALL MY PLANS, including lost my rental car which would now cost over 5 times what I paid so stuck with buses n trains... lost hotel reservations.... HORRIBLE!!!

They’ve lost my bag and I have no way of really getting in touch with anyone and have received no updates.

Very crowded, no real explanation of food "chicken or pasta?" After dinner no drinks service. Plane was clean, but little help with finding soaces fir luggage to get into overhead bins. Many passengers putting 2 bags, hats, duty free in overhead bins so no space for roll ons

Flight was good but seat in 12D was not comfortable, better on the Airbus 321 from Tampa to Charlotte. No breakfast was served before landing in zLonfon only a coffee and orange juice.

I was transferred to an American Airlines flight. The boarding was late and unorganized. The seating was extremely tight and uncomfortable. Will not use AA again.

The entertainment selection was ok, but overall not bad! The crew was great.

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

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.