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Heathrow

$419+ Cheap flights from Green Bay (GRB) to Heathrow (LHR)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/10. Fares are subject to change and may not be available on all flights or dates of travel.
GRB — LHR
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheap flight deals from Green Bay to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Green Bay (GRB) to Heathrow (LHR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 12, 2025.

Round-trip from

$657
(Ovago)

One-way from

$419
(British Airways)

Popular in

June

Cheapest in

March

Average price

$1,457
From Green Bay Austin-Straubel to London Heathrow
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One-way flight from Green Bay Austin-Straubel to London Heathrow
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Highest demand for flights based on searches. 12% potential increase in price ($139 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($52 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find flight deals from Green Bay to Heathrow

Cheapest flights from Green Bay to Heathrow
Explore the most affordable flight options available from Green Bay to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This Ovago deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/244:35 pmGRB - LHR
1 stop11h 55mBritish Airways
Tue 9/307:25 pmLHR - GRB
2 stops28h 31mBritish Airways
Deal found 6/12$657
This American Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/166:10 pmGRB - LHR
1 stop10h 20mAmerican Airlines
Fri 10/2411:05 amLHR - GRB
1 stop12h 35mAmerican Airlines
Deal found 6/12$701
This United Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/248:00 amGRB - LHR
1 stop16h 20mUnited Airlines
Fri 10/32:05 pmLHR - GRB
2 stops31h 04mUnited Airlines
Deal found 6/10$728
This Delta deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/217:00 amGRB - LHR
2 stops17h 25mDelta
Fri 11/286:20 amLHR - GRB
2 stops20h 18mDelta
Deal found 6/12$767
This KLM deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/165:30 amGRB - LHR
1 stop19h 15mKLM
Fri 10/241:05 pmLHR - GRB
1 stop14h 53mKLM
Deal found 6/10$801
This Virgin Atlantic deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/411:13 amGRB - LHR
2 stops14h 52mVirgin Atlantic
Mon 7/711:45 amLHR - GRB
1 stop14h 50mVirgin Atlantic
Deal found 6/11$1,112
This Air France deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/25:33 amGRB - LHR
1 stop25h 57mMultiple Airlines
Tue 7/89:20 amLHR - GRB
1 stop20h 02mMultiple Airlines
Deal found 6/9$1,251
This Cheapflightsfares deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/201:22 pmGRB - LHR
1 stop10h 58mLufthansa
Mon 8/2511:05 amLHR - GRB
1 stop11h 44mLufthansa
Deal found 6/11$3,032

Cheapflights Fare Finder

Customize your flight search to find flights from Green Bay to Heathrow that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 12, 2025.
Use the filters below to find and compare flights from Green Bay to London Heathrow Airport that are best for you.

Fly from

Green Bay

Fly to

Heathrow

Route

Depart

Return

Price

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Wed 9/24

4:35 pm-10:30 am

1 stop11h 55m

London Heathrow

Tue 9/30

7:25 pm-5:56 pm

2 stops28h 31m

$657

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Thu 10/16

6:10 pm-10:30 am

1 stop10h 20m

London Heathrow

Fri 10/24

11:05 am-5:40 pm

1 stop12h 35m

$701

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Wed 9/24

8:00 am-6:20 am

1 stop16h 20m

London Heathrow

Fri 10/3

2:05 pm-3:09 pm

2 stops31h 04m

$728

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Fri 11/21

7:00 am-6:25 am

2 stops17h 25m

London Heathrow

Fri 11/28

6:20 am-8:38 pm

2 stops20h 18m

$767

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Thu 10/16

5:30 am-6:45 am

1 stop19h 15m

London Heathrow

Fri 10/24

1:05 pm-9:58 pm

1 stop14h 53m

$801

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Fri 7/4

11:13 am-8:05 am

2 stops14h 52m

London Heathrow

Mon 7/7

11:45 am-8:35 pm

1 stop14h 50m

$1,112

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Wed 7/2

5:33 am-1:30 pm

1 stop25h 57m

London Heathrow

Tue 7/8

9:20 am-11:22 pm

1 stop20h 02m

$1,251

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Wed 8/20

1:22 pm-6:20 am

1 stop10h 58m

London Heathrow

Mon 8/25

11:05 am-4:49 pm

1 stop11h 44m

$3,032

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Sun 8/10

3:01 pm-10:30 am

1 stop13h 29m

$419

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Tue 9/9

5:31 am-6:45 am

1 stop19h 14m

$446

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

Showing 1-10 of 13 results
1
2

Best time to book a flight from Green Bay to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Green Bay with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Green Bay to London Heathrow Airport

What is the cheapest month to book a flight from Green Bay to London Heathrow Airport?

Currently, November is the cheapest month in which you can book a flight from Green Bay to London Heathrow Airport (average of $661). Flying from Green Bay to London Heathrow Airport in June is currently the most expensive (average of $1,108). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Rainfall in Heathrow by month

Plan your trip to Heathrow by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in London Heathrow Airport ranges from 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit London Heathrow Airport when rainfall is around 1.6 in.

Temperature in Heathrow by month

Plan your trip to Heathrow by taking into account the average temperature totals by month.

If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Heathrow. Reviews last updated June 12, 2025.
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,950 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,358 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,790 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Virgin Atlantic
7.4
Good
652 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Green Bay to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Green Bay to London Heathrow?

    Most people fly from Green Bay Austin-Straubel (GRB) if they book a flight from Green Bay to London Heathrow. On average, Austin-Straubel has 0 outbound flights to London Heathrow per day from 3 airlines. Green Bay Austin-Straubel is conveniently located just 5.9 mi from Green Bay’s city center.

  • What are the cheapest airlines flying from Green Bay to London Heathrow Airport round-trip?

    Cheapflights users have booked flights from Green Bay to London Heathrow Airport round-trip from $657. Other airlines that can offer you cheap pricing are American Airlines, from $701, and United Airlines, from $728. You may be able to fly from Green Bay to London Heathrow Airport for 34% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Green Bay to London Heathrow Airport one-way?

    The cheapest airline one-way is British Airways, with whom users have recently found tickets for as low as $419. However, be on the lookout for offers from Delta and WestJet, as they are both options that can get you from Green Bay to London Heathrow Airport for a low price.

  • Can I find deals for flights from Green Bay to Heathrow that include hotel bookings?

    Yes. In addition to deals on Green Bay to Heathrow flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Green Bay to Heathrow?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Green Bay to Heathrow.

  • Can I find deals for business class flights from Green Bay to Heathrow?

    Yes. Cheapflights offers flight deals from Green Bay to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, November is the cheapest month in which you can book a flight from Green Bay to London Heathrow Airport (average of $661). Flying from Green Bay to London Heathrow Airport in June is currently the most expensive (average of $1,108). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Green Bay?

Book flights to Green Bay if you plan to visit one of these locations
Hayes
Hounslow
Thornton Heath
Luton
Canterbury
Harrow
Dover
Stratford-upon-Avon
Gatwick
Orpington
Watford
Northampton
Croydon
Folkestone
Borehamwood
Broadway
Sutton
Aylesbury
Chelmsford
Brentwood

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Alternative routes for Green Bay to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Green Bay to Heathrow

Discover the top 3 airlines that operate flights from Green Bay to Heathrow. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$699Average$1,412FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$701Average$867FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$734Average$840FlexibilityNo cancel feeOn-time70%

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