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756 € Cheap Flights from Green Bay to London Heathrow

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      Travellers and cabin class, 1 Adult, Economy

      Compare Green Bay to London Heathrow flight deals

      Find the cheapest month or even day of the year to fly to London Heathrow

      Book the best London Heathrow fare with no extra fees

      Flight deals from Green Bay to London Heathrow

      Looking for a cheap last-minute deal or the best return flight from Green Bay Airport to London Heathrow Airport? If you want to travel next month, return fares start from 860 €. Find the lowest prices on one-way and return tickets right here.
      London.756 € per passenger.Departing Tue, 20 Oct, returning Tue, 10 Nov.Return flight with United and Brussels Airlines.Outbound indirect flight with United, departs from Green Bay on Tue, 20 Oct, arriving in London Heathrow.Inbound indirect flight with Brussels Airlines, departs from London Heathrow on Tue, 10 Nov, arriving in Green Bay.Price includes taxes and charges.From 756 €, select.
      London.757 € per passenger.Departing Wed, 14 Oct, returning Wed, 21 Oct.Return flight with United.Outbound indirect flight with United, departs from Green Bay on Wed, 14 Oct, arriving in London Heathrow.Inbound indirect flight with United, departs from London Heathrow on Wed, 21 Oct, arriving in Green Bay.Price includes taxes and charges.From 757 €, select.
      London.767 € per passenger.Departing Wed, 9 Dec, returning Wed, 16 Dec.Return flight with Air France and KLM.Outbound indirect flight with Air France, departs from Green Bay on Wed, 9 Dec, arriving in London Heathrow.Inbound indirect flight with KLM, departs from London Heathrow on Wed, 16 Dec, arriving in Green Bay.Price includes taxes and charges.From 767 €, select.
      London.816 € per passenger.Departing Wed, 26 Aug, returning Wed, 2 Sep.Return flight with Iberia.Outbound indirect flight with Iberia, departs from Green Bay on Wed, 26 Aug, arriving in London Heathrow.Inbound indirect flight with Iberia, departs from London Heathrow on Wed, 2 Sep, arriving in Green Bay.Price includes taxes and charges.From 816 €, select.
      London.860 € per passenger.Departing Sun, 23 Aug, returning Sun, 30 Aug.Return flight with Iberia.Outbound indirect flight with Iberia, departs from Green Bay on Sun, 23 Aug, arriving in London Heathrow.Inbound indirect flight with Iberia, departs from London Heathrow on Sun, 30 Aug, arriving in Green Bay.Price includes taxes and charges.From 860 €, select.
      London.1.190 € per passenger.Departing Sun, 26 Jul, returning Sun, 2 Aug.Return flight with Delta.Outbound indirect flight with Delta, departs from Green Bay on Sun, 26 Jul, arriving in London Heathrow.Inbound indirect flight with Delta, departs from London Heathrow on Sun, 2 Aug, arriving in Green Bay.Price includes taxes and charges.From 1.190 €, select.
      London.1.193 € per passenger.Departing Thu, 16 Jul, returning Tue, 21 Jul.Return flight with Air France and KLM.Outbound indirect flight with Air France, departs from Green Bay on Thu, 16 Jul, arriving in London Heathrow.Inbound indirect flight with KLM, departs from London Heathrow on Tue, 21 Jul, arriving in Green Bay.Price includes taxes and charges.From 1.193 €, select.

      Find the cheapest month to fly from Green Bay to London Heathrow

      We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Green Bay to London Heathrow flights are currently cheapest in October.
      Jul
      from 1.193 €
      Aug
      from 860 €
      Sep
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      Oct
      from 757 €
      Nov
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      Dec
      from 767 €
      Jan
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      Feb
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      Mar
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      Apr
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      May
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      Jun
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      Green Bay to London Heathrow: Alternative routes

      Compare routes from Green Bay to London below. You may find an airport to fly into that's cheaper, faster, or easier than London Heathrow.

      London City

      12km from central London
      Closest
      from 792 €
      Search flights

      London Heathrow

      23km from central London
      Cheapest
      from 756 €
      Search flights

      London Gatwick

      40km from central London
      from 901 €
      Search flights

      London Luton

      45km from central London
      from 1.192 €
      Search flights

      London Stansted

      49km from central London
      from 1.193 €
      Search flights

      London Southend

      57km from central London
      from 2.027 €
      Search flights

      Green Bay to London: Flight information

      The things to know before you go.
      Cheapest flight found756 €
      Cheapest month to flyOctober

      Finding cheap flights from Green Bay to London Heathrow: Frequently asked questions

      The best price we found for a return flight from Green Bay to London Heathrow is 756 €. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
      Currently, there are no airlines that fly direct from Green Bay to London Heathrow. But we found flights with one or more stops from 756 €.
      As of July 2026, there are no flights flying from Green Bay to London Heathrow.
      The cheapest month to fly from Green Bay to London Heathrow is usually October.
      After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Green Bay Airport to London Heathrow Airport on Tuesday, 20 October 2026.
      No airlines currently offer direct flights between Green Bay Airport and London Heathrow Airport. Most routes have one or more stops.
      We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to London Heathrow but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

      We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to London is around 40 days in advance, so don’t leave your flight to the last minute.

      Currently, United offers the cheapest flight tickets to London Heathrow.

      Travelling from Green Bay Airport (GRB) to London Heathrow Airport (LHR): what you need to know

      • The timezone in London is UTC+0, which is six hours ahead of Green Bay.

      • For a stress-free journey, arrive at the airport two hours ahead of international flights and an hour before domestic departures. This will give you plenty of time to catch your GRB to LHR flight.

      • Travelling during a peak time such as November? School holidays and other popular periods can mean longer lines and delays at airport checkpoints. Play it safe and get there up to four hours ahead of an international flight and two hours before a domestic departure.

      • Think about adding a stopover when booking your ticket from Green Bay Airport to London Heathrow Airport. Just uncheck 'Direct flights only' to break up your trip, or visit a new city along the way. Here are some options between GRB and LHR:

        • Chicago O'Hare International Airport

        • Detroit Wayne County Airport

        • Minneapolis St Paul Airport

      How to find the cheapest flights from Green Bay Airport (GRB) to London Heathrow Airport (LHR)

      • Currently, 285 € is the cheapest price we've found for a one-way Green Bay Airport to London Heathrow Airport flight. The best price for a return ticket is 756 €. Remember that fares may change due to availability when booking.

      • To pick up cheap tickets from GRB to LHR, book in advance. Airlines usually offer lower prices when flights are first made available.

      • The 'Whole month' search function shows you the cheapest flights from Green Bay Airport to London Heathrow Airport across each month. It's a great way to find a bargain if your plans aren't set in stone.

      • Never miss a deal on cheap flights from GRB to LHR by creating a Price Alert. You'll get an email or push notification on the app when a lower fare pops up.

      • Select your preferred departure and arrival times, airlines and number of stops with the filters. Or sort your results by 'Cheapest' to find the best deals on flights from Green Bay Airport to London Heathrow Airport.

      Handy information about Green Bay Airport (GRB)

      • You'll find GRB at 2077 Airport Drive.

      • 72% of flights taking off from Green Bay Airport touch down at their destination on time.

      • To reach Green Bay Airport from central Green Bay, it'll take around 15 minutes by car. Of course, this depends on traffic conditions. It's approximately 13 kilometres from the airport to the city centre.

      • Taking public transport? Expect a trip time of around 40 minutes.

      • Get your travels off to a relaxed start by staying near GRB. Whether you're boarding an early flight from Green Bay Airport to London Heathrow Airport or just don't want to be rushed, these stays have you covered:

      Arriving at London Heathrow Airport (LHR)

      Getting from London Heathrow Airport (LHR) to central London

      • London Heathrow Airport to the centre of London has a drive time of around 45 minutes. It's approximately 24 kilometres away.

      • If you're using public transport, expect a journey time of roughly 25 minutes.

      When to fly to London Heathrow Airport (LHR)

      • It's time to work out your dates for your flight from Green Bay Airport to London Heathrow Airport. July is the most popular month to head to London. If you like a more laid-back vibe, go in March.

      • Book your flight from Green Bay Airport to London Heathrow Airport for July if you'd like to go to London during its warmest month. Expect temperatures of between 11ºC (52ºF) and 26ºC (79ºF).

      • Look for cheap tickets from GRB to LHR in January if you like cooler conditions. Temperatures are at their lowest around then, ranging between 0ºC (32ºF) and 9ºC (48ºF) on average.

      Explore more of the United Kingdom

      • London is always a good idea, but there are so many other corners of the United Kingdom just waiting to be discovered. Around 257 kilometres north-west of London, a trip to Manchester will keep you on the go. Start with leading sights like Manchester United Museum & Stadium Tour, The Homes of Football and Museum of Science and Industry.

      • If you're eager to discover another great destination in the United Kingdom, head for Birmingham, roughly 161 kilometres north-west of London. Birmingham Museum & Art Gallery, Birmingham Hippodrome Theatre and Bournville Experience are highlights.

      Plan the rest of your trip from Green Bay to London

      Prices shown on this page are estimated lowest prices only. Found in the last 12 days.