$875+ Cheap flights from Green Bay (GRB) to Heathrow (LHR)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/18. Fares are subject to change and may not be available on all flights or dates of travel.
GRB — LHR
Oct 8 — Oct 151
Round-trip
1 adult, Economy
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Find cheap flights from Green Bay to Heathrow with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Green Bay to Heathrow
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Cheapest flights from Green Bay to HeathrowExplore 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 September 8, 2026.
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 September 8, 2026.
This FlightHub deal was found by Cheapflights users on 9/3. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/186:00 am -
1 stop21h 05m
Thu 10/226:10 am -
2 stops24h 02m
Deal found 9/3![British Airways logo]()
$875
This FlightHub deal was found by Cheapflights users on 9/4. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/134:04 pm -
1 stop14h 11m
Wed 9/2310:50 am -
2 stops39h 06m
Deal found 9/4![British Airways logo]()
$883
This American Airlines deal was found by Cheapflights users on 9/4. 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.
Sun 9/134:04 pm -
1 stop14h 11m
Wed 9/2312:15 pm -
1 stop17h 58m
Deal found 9/4![American Airlines logo]()
$896
This Iberia deal was found by Cheapflights users on 9/3. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/234:16 pm -
1 stop13h 59m
Tue 10/612:15 pm -
1 stop17h 57m
Deal found 9/3![Iberia logo]()
$897
This Delta deal was found by Cheapflights users on 9/5. 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.
Tue 10/205:30 am -
1 stop18h 55m
Tue 10/2710:50 am -
1 stop15h 52m
Deal found 9/5![Delta logo]()
$915
This Delta deal was found by Cheapflights users on 9/7. 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.
Thu 10/2212:29 pm -
1 stop18h 36m
Thu 10/298:40 am -
2 stops18h 47m
Deal found 9/7![Delta logo]()
$937
This Delta deal was found by Cheapflights users on 9/8. 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 10/2311:04 am -
1 stop14h 06m
Fri 10/306:20 am -
2 stops20h 23m
Deal found 9/8![Delta logo]()
$944
This Iberia deal was found by Cheapflights users on 9/4. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/234:16 pm -
1 stop13h 59m
Mon 9/282:25 pm -
1 stop11h 31m
Deal found 9/4![Iberia logo]()
$946
Best flights from Green Bay to HeathrowDiscover carefully curated flight deals from Green Bay to Heathrow that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 8, 2026.
Discover carefully curated flight deals from Green Bay to Heathrow that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 8, 2026.
This Delta deal was found by Cheapflights users on 9/5. 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.
Tue 10/204:51 pm -
1 stop11h 29m
Tue 10/278:10 pm -
2 stops20h 27m
Deal found 9/5![Delta logo]()
$920
This Delta deal was found by Cheapflights users on 9/7. 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.
Thu 10/2212:29 pm -
1 stop18h 36m
Thu 10/298:40 am -
2 stops18h 47m
Deal found 9/7![Delta logo]()
$937
This Delta deal was found by Cheapflights users on 9/8. 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 10/236:00 am -
2 stops18h 25m
Fri 10/306:20 am -
2 stops20h 23m
Deal found 9/8![Delta logo]()
$948
This Delta deal was found by Cheapflights users on 9/3. 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.
Wed 9/235:30 am -
1 stop19h 45m
Wed 10/78:40 am -
2 stops19h 03m
Deal found 9/3![Delta logo]()
$1,030
This Delta deal was found by Cheapflights users on 9/3. 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.
Wed 9/2311:02 am -
2 stops17h 38m
Tue 10/68:40 am -
2 stops19h 03m
Deal found 9/3![Delta logo]()
$1,034
This Delta deal was found by Cheapflights users on 9/5. 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.
Wed 9/234:16 pm -
1 stop14h 49m
Mon 9/288:40 am -
2 stops18h 55m
Deal found 9/5![Delta logo]()
$1,079
Last-minute flights from Green Bay to HeathrowDiscover last-minute flight deals from Green Bay to Heathrow. Data last updated September 8, 2026 and is based on user searches.
Discover last-minute flight deals from Green Bay to Heathrow. Data last updated September 8, 2026 and is based on user searches.
This FlightHub deal was found by Cheapflights users on 9/4. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/134:04 pm -
1 stop14h 11m
Wed 9/2310:50 am -
2 stops39h 06m
Deal found 9/4![British Airways logo]()
$883
This American Airlines deal was found by Cheapflights users on 9/4. 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.
Sun 9/134:04 pm -
1 stop14h 11m
Wed 9/2312:15 pm -
1 stop17h 58m
Deal found 9/4![American Airlines logo]()
$896
This Iberia deal was found by Cheapflights users on 9/3. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/234:16 pm -
1 stop13h 59m
Tue 10/612:15 pm -
1 stop17h 57m
Deal found 9/3![Iberia logo]()
$897
This Iberia deal was found by Cheapflights users on 9/4. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/234:16 pm -
1 stop13h 59m
Mon 9/282:25 pm -
1 stop11h 31m
Deal found 9/4![Iberia logo]()
$946
This FlightHub deal was found by Cheapflights users on 9/3. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/186:00 am -
1 stop21h 05m
Thu 10/226:10 am -
2 stops24h 02m
Deal found 9/3![British Airways logo]()
$875
This Delta deal was found by Cheapflights users on 9/5. 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.
Tue 10/205:30 am -
1 stop18h 55m
Tue 10/2710:50 am -
1 stop15h 52m
Deal found 9/5![Delta logo]()
$915
This Delta deal was found by Cheapflights users on 9/7. 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.
Thu 10/2212:29 pm -
1 stop18h 36m
Thu 10/298:40 am -
2 stops18h 47m
Deal found 9/7![Delta logo]()
$937
This Delta deal was found by Cheapflights users on 9/8. 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 10/2311:04 am -
1 stop14h 06m
Fri 10/306:20 am -
2 stops20h 23m
Deal found 9/8![Delta logo]()
$944
One-way flights from Green Bay to HeathrowSearch for one-way flight options from Green Bay to Heathrow. Find affordable one-way fares based on user searches. Data last updated September 8, 2026.
Search for one-way flight options from Green Bay to Heathrow. Find affordable one-way fares based on user searches. Data last updated September 8, 2026.
This AranGrant deal was found by Cheapflights users on 9/6. 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 AranGrant is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/305:55 pm -
1 stop30h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Lufthansa logo]()
$3,267
This BusinessClass deal was found by Cheapflights users on 9/6. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/302:37 pm -
2 stops13h 03m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Iberia logo]()
$3,447
This Cathay Pacific deal was found by Cheapflights users on 9/6. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/3010:04 am -
3 stops44h 01m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Multiple Airlines logo]()
$26,579
Find 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 September 8, 2026.
Most accurate provider | Ovago 3 stars |
|---|---|
Most trusted provider | Ovago 3 stars |
Round-trip from | $875 (FlightHub) |
Popular in | November |
Cheapest in | October |
Average price | $895 |
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 7,457,451 searches. Data last updated September 8, 2026.
Use the filters below to find and compare flights from Green Bay to London Heathrow Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Green BayLondon
GRB Green Bay Austin-Straubel - LHR London Heathrow
GRBLHR
Green Bay Austin-Straubel
Tue 10/20
4:51 pm-10:20 am
1 stop11h 29m
London Heathrow
Tue 10/27
8:10 pm-11:37 am
2 stops20h 27m
$920
Green BayLondon
GRB Green Bay Austin-Straubel - LHR London Heathrow
GRBLHR
Green Bay Austin-Straubel
Thu 10/22
12:29 pm-1:05 pm
1 stop18h 36m
London Heathrow
Thu 10/29
8:40 am-10:27 pm
2 stops18h 47m
$937
Green BayLondon
GRB Green Bay Austin-Straubel - LHR London Heathrow
GRBLHR
Green Bay Austin-Straubel
Fri 10/23
6:00 am-6:25 am
2 stops18h 25m
London Heathrow
Fri 10/30
6:20 am-9:43 pm
2 stops20h 23m
$948
Green BayLondon
GRB Green Bay Austin-Straubel - LHR London Heathrow
GRBLHR
Green Bay Austin-Straubel
Wed 9/23
5:30 am-7:15 am
1 stop19h 45m
London Heathrow
Wed 10/7
8:40 am-9:43 pm
2 stops19h 03m
$1,030
Green BayLondon
GRB Green Bay Austin-Straubel - LHR London Heathrow
GRBLHR
Green Bay Austin-Straubel
Wed 9/23
11:02 am-10:40 am
2 stops17h 38m
London Heathrow
Tue 10/6
8:40 am-9:43 pm
2 stops19h 03m
$1,034
Green BayLondon
GRB Green Bay Austin-Straubel - LHR London Heathrow
GRBLHR
Green Bay Austin-Straubel
Wed 9/23
4:16 pm-1:05 pm
1 stop14h 49m
London Heathrow
Mon 9/28
8:40 am-9:35 pm
2 stops18h 55m
$1,079
Green BayLondon
GRB Green Bay Austin-Straubel - LHR London Heathrow
GRBLHR
Green Bay Austin-Straubel
Mon 11/30
5:55 pm-5:55 am
1 stop30h 00m
London Heathrow
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$3,267
Quickest round-trip
Green BayLondon
GRB Green Bay Austin-Straubel - LHR London Heathrow
GRBLHR
Green Bay Austin-Straubel
Mon 11/30
2:37 pm-9:40 am
2 stops13h 03m
London Heathrow
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$3,447
Green BayLondon
GRB Green Bay Austin-Straubel - LHR London Heathrow
GRBLHR
Green Bay Austin-Straubel
Mon 11/30
10:04 am-12:05 pm
3 stops44h 01m
London Heathrow
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$26,579
Sorted by cheapest first
Compare providers for flights from Green Bay to Heathrow
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Green Bay to Heathrow in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Green Bay-London Heathrow Airport flights, users find the pricing of Ovago to be most consistent on Cheapflights vs. Ovago Users can find the same prices on Green Bay-London Heathrow Airport flight deals on Cheapflights vs. Ovago >95% of the time. Price accuracy is based on data collected from Green Bay-London Heathrow Airport flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Green Bay-London Heathrow Airport flights, Cheapflights users trust Ovago the most. Ovago has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Green Bay-London Heathrow Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
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.
GRB-LHR
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, October is the cheapest month in which you can book a flight from Green Bay to London Heathrow Airport (average of $717). Flying from Green Bay to London Heathrow Airport in November is currently the most expensive (average of $4,893). 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.
How much does it cost to fly round-trip from Green Bay to London Heathrow Airport?
Airfare is typical for this route at the moment.
Green Bay to London Heathrow Airport flights typically cost between $856 and $911 in October.The cheapest round-trip price found within the last 5 days was $875 on British Airways (Oct 18-Oct 22).
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 September 8, 2026.
See what other customers who have flown with United Airlines,American Airlines, andBritish Airways from Green Bay to London Heathrow Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.1
Boarding
7.7
Comfort
7.3
Crew
8.1
Food
6.7
Overall
7.4
Reviews
1 / 20
4.0
OkayChris,Aug 2026
MIA - ORD
Entertainment
7.1
Boarding
7.7
Comfort
7.3
Crew
8.1
Food
6.7
Overall
7.4
Reviews
1 / 20
4.0
OkayChris,Aug 2026
MIA - ORD
Entertainment
7.1
Boarding
7.7
Comfort
7.3
Crew
8.1
Food
6.7
Overall
7.4
Reviews
1 / 20
4.0
OkayChris,Aug 2026
MIA - ORD
Entertainment
7.1
Boarding
7.7
Comfort
7.3
Crew
8.1
Food
6.7
Overall
7.4
Reviews
1 / 20
4.0
OkayChris,Aug 2026
MIA - ORD
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.
Traveling to a place near London Heathrow Airport?
Book flights to London Heathrow Airport if you plan to visit one of these locationsIlford
Dorking
Gatwick
Hounslow
Harrow
Wembley
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Basingstoke
Watford
Northampton
Dartford
Winchester
Croydon
Chipping Norton
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Eastbourne
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Luton
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Explore flights to Heathrow departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 8, 2026.
Green Bay and Heathrow flights
Browse other Green Bay and Heathrow flight options. Last updated on September 8, 2026.
Other flights from Green Bay
Browse through other flights departing from Green Bay. Flights are based on user searches made on Cheapflights and were last updated on September 8, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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 7,457,451 searches. Data last updated September 8, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$676 | Average$1,018 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$717 | Average$911 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$767 | Average$920 | FlexibilityNo cancel fee | On-time69% |