£240 Cheap Flights from Green Bay (GRB) to London (LHR)

View £240 flight on Tue, 22 Sept 2026Opens in a new window

Popular airlines from Green Bay Austin Straubel Intl. Airport (GRB) to Heathrow Airport (LHR)

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Cheap Flights from Green Bay (GRB) to London (LHR)

Prices were available within the past 7 days and start at £240 for one-way flights and £686 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air France
Thu, 3 Sept - Thu, 10 Sept
GRB
Green Bay
LHR
London
£686 Return, found 5 days ago
£686
Return
found 5 days ago
Select Air France flight, departing Thu, 3 Sept from Green Bay to London, returning Thu, 10 Sept, priced at £686 found 5 days ago
British Airways
Thu, 3 Sept - Thu, 10 Sept
GRB
Green Bay
LHR
London
£690 Return, found 5 days ago
£690
Return
found 5 days ago
Select British Airways flight, departing Thu, 3 Sept from Green Bay to London, returning Thu, 10 Sept, priced at £690 found 5 days ago
Air France
Thu, 3 Sept - Thu, 10 Sept
GRB
Green Bay
LHR
London
£702 Return, found 5 days ago
£702
Return
found 5 days ago
Select Air France flight, departing Thu, 3 Sept from Green Bay to London, returning Thu, 10 Sept, priced at £702 found 5 days ago
Air France
Thu, 3 Sept - Thu, 10 Sept
GRB
Green Bay
LHR
London
£722 Return, found 5 days ago
£722
Return
found 5 days ago
Select Air France flight, departing Thu, 3 Sept from Green Bay to London, returning Thu, 10 Sept, priced at £722 found 5 days ago
British Airways
Thu, 3 Sept - Thu, 10 Sept
GRB
Green Bay
LHR
London
£734 Return, found 5 days ago
£734
Return
found 5 days ago
Select British Airways flight, departing Thu, 3 Sept from Green Bay to London, returning Thu, 10 Sept, priced at £734 found 5 days ago
Air France
Thu, 3 Sept - Thu, 10 Sept
GRB
Green Bay
LHR
London
£743 Return, found 5 days ago
£743
Return
found 5 days ago
Select Air France flight, departing Thu, 3 Sept from Green Bay to London, returning Thu, 10 Sept, priced at £743 found 5 days ago
KLM
Thu, 3 Sept - Thu, 10 Sept
GRB
Green Bay
LHR
London
£760 Return, found 5 days ago
£760
Return
found 5 days ago
Select KLM flight, departing Thu, 3 Sept from Green Bay to London, returning Thu, 10 Sept, priced at £760 found 5 days ago
Air France
Thu, 3 Sept - Thu, 10 Sept
GRB
Green Bay
LHR
London
£762 Return, found 5 days ago
£762
Return
found 5 days ago
Select Air France flight, departing Thu, 3 Sept from Green Bay to London, returning Thu, 10 Sept, priced at £762 found 5 days ago
Iberia
Thu, 3 Sept - Thu, 10 Sept
GRB
Green Bay
LHR
London
£777 Return, found 5 days ago
£777
Return
found 5 days ago
Select Iberia flight, departing Thu, 3 Sept from Green Bay to London, returning Thu, 10 Sept, priced at £777 found 5 days ago
Virgin Atlantic
Thu, 3 Sept - Thu, 10 Sept
GRB
Green Bay
LHR
London
£777 Return, found 5 days ago
£777
Return
found 5 days ago
Select Virgin Atlantic flight, departing Thu, 3 Sept from Green Bay to London, returning Thu, 10 Sept, priced at £777 found 5 days ago

Alternative airports near London

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to London City LCY. Cheapest and Closest option available. Average driving time to city centre is 21 minutes. Flights from £981
LCY
London City
CheapestClosest
Average driving time to city centre21 min
Flights from £981

Frequently asked questions

How much does a flight from Green Bay, WI (GRB-Austin Straubel Intl.) to London (LHR-Heathrow) cost?
One-way flights typically cost between £315 and £1,607 and return flights often range between £315 and £1,607. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Anaa (AAA) to Toronto, ON (YYZ-Pearson Intl.) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
How do I find cheap flights from Green Bay, WI (GRB-Austin Straubel Intl.) to London (LHR-Heathrow)?
To find a cheap flight from Green Bay, WI (GRB-Austin Straubel Intl.) to London (LHR-Heathrow), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Green Bay, WI (GRB-Austin Straubel Intl.) to London (LHR-Heathrow)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Green Bay, WI (GRB-Austin Straubel Intl.) to London (LHR-Heathrow)?
There are approximately 21 connecting flights per day from Green Bay, WI (GRB-Austin Straubel Intl.) to London (LHR-Heathrow). Some common connection points include O'Hare Intl. (ORD), Detroit Metropolitan Wayne County (DTW), and Minneapolis - St. Paul Intl. (MSP).
What is the earliest flight from Green Bay, WI (GRB-Austin Straubel Intl.) to London (LHR-Heathrow)?
The earliest flight from Green Bay, WI (GRB-Austin Straubel Intl.) to London (LHR-Heathrow) typically departs at approximately 5:00 AM local time. This service is operated by American Airlines and is seasonal, active only in March. An early departure like this can help you maximise your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Green Bay, WI (GRB-Austin Straubel Intl.) to London (LHR-Heathrow)?
You'll typically find the most flights from Green Bay, WI (GRB-Austin Straubel Intl.) to London (LHR-Heathrow) on a Tuesday, with around 32 flights available. This gives you a good selection of options for your journey. Major airlines on this route include Delta Air Lines, United Airlines, and American Airlines.
What are the most popular departure times for flights from Green Bay, WI (GRB-Austin Straubel Intl.) to London (LHR-Heathrow)?
The most popular departure times for flights from Green Bay, WI (GRB-Austin Straubel Intl.) to London (LHR-Heathrow) are in the morning, from 9am to 12pm. About 27% of passengers prefer this time. Many major carriers, including Delta, Virgin Atlantic and American Airlines, offer flights during this window. This timing works well because it allows you to start your travel day at a reasonable hour and arrive in London with time to settle in.
How long does it take to fly from Green Bay, WI (GRB-Austin Straubel Intl.) to London (LHR-Heathrow)?
Flying from GRB to LHR with a connection usually takes about 14 hours 20 minutes, traveling roughly 3,836 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Green Bay, WI (GRB-Austin Straubel Intl.) to London (LHR-Heathrow)?
Select the "Business class" and "First class" filters when looking for GRB to LHR flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Green Bay, WI (GRB-Austin Straubel Intl.) to London (LHR-Heathrow) flight with Expedia?
It's easy to earn miles on a Green Bay, WI (GRB-Austin Straubel Intl.) to London (LHR-Heathrow) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for London from Austin Straubel Intl. (GRB)?
If you're planning to travel to London from Austin Straubel Intl. (GRB), you can fly into Heathrow (LHR) Some flights may connect through major hubs like O'Hare Intl. (ORD), Detroit Metropolitan Wayne County (DTW), Minneapolis - St. Paul Intl. (MSP) before reaching London. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Green Bay, WI (GRB-Austin Straubel Intl.) to London (LHR-Heathrow) at the last minute?
Typically, booking a last minute flight from Green Bay, WI (GRB-Austin Straubel Intl.) to London (LHR-Heathrow) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Green Bay, WI (GRB-Austin Straubel Intl.) to London (LHR-Heathrow) flight and hotel package?
Securing a Green Bay, WI (GRB-Austin Straubel Intl.) to London (LHR-Heathrow) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Green Bay, WI (GRB-Austin Straubel Intl.) to London (LHR-Heathrow)?
If you booked your Green Bay, WI (GRB-Austin Straubel Intl.) to London (LHR-Heathrow) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Austin Straubel Intl.
Destination airport
Heathrow
Return price
£686
Distance
6136 km

Book with confidence

Compare flights from Green Bay to London easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Green Bay to London. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Heathrow in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Austin Straubel Intl. to Heathrow.  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Austin Straubel Intl. (GRB) to Heathrow (LHR)

The easiest way to view the best deals on flights from Green Bay to London today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Austin Straubel Intl. to Heathrow start at just £686 and range up to £777.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Green Bay and London
  • booking your flight during September, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Green Bay to London flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Austin Straubel Intl. to Heathrow for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Compare flights from Green Bay to London easily and book with confidence

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*Available to Expedia members.