Cheap Flights from Green Bay to Lisbon

Compare Green Bay to Lisbon flight deals

Find the cheapest month or even day of the year to fly to Lisbon

Book the best Lisbon fare with no extra fees

Find the cheapest month to fly from Green Bay to Lisbon

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Green Bay to Lisbon flights are currently cheapest in October.

Green Bay to Lisbon: Alternative routes

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

Green Bay to Lisbon: Flight information

The things to know before you go.
Cheapest flight found$2,376
Cheapest month to flyOctober

Finding cheap flights from Green Bay to Lisbon: Frequently asked questions

The best price we found for a return flight from Green Bay to Lisbon is $2,376. 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 Lisbon. But we found flights with one or more stops from $2,376.
As of June 2026, there are no flights flying from Green Bay to Lisbon.
The cheapest month to fly from Green Bay to Lisbon 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 Lisbon Airport on Sunday, 11 October 2026.
No airlines currently offer direct flights between Green Bay Airport and Lisbon 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 Lisbon 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 Lisbon is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Delta offers the cheapest flight tickets to Lisbon.

Flying from Green Bay Airport (GRB) to Lisbon Airport (LIS): what you need to know

  • Lisbon's timezone is UTC+0, making Lisbon six hours ahead of Green Bay.

  • Leave plenty of time to make your GRB to LIS flight. As a general rule, turn up at least two hours before international departures and an hour ahead for domestic flights.

  • Be prepared for longer lines in popular months such as November. Arriving up to four hours in advance for an international flight and two hours for a domestic departure will help ensure a smooth travel experience.

How to find the cheapest flights from Green Bay Airport (GRB) to Lisbon Airport (LIS)

  • At the moment, $1,231 is the lowest price we've seen for a one-way Green Bay Airport to Lisbon Airport flight. The best price for a return ticket is $2,376. Remember that fares could change due to availability at the time of booking.

  • To find cheap tickets from GRB to LIS, book early. Airlines typically offer the most competitive fares when flights are first released.

  • The 'Whole month' search function shows you the cheapest flights from Green Bay Airport to Lisbon Airport throughout the entire month. It's a great way to find a bargain if your travel dates are flexible.

  • Save time searching for cheap flights from GRB to LIS by setting up a Price Alert. You'll receive an email or notification through the app when a new discounted fare appears.

  • Choose your ideal 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 Lisbon Airport.

Handy information about Green Bay Airport (GRB)

  • GRB's address is 2077 Airport Drive.

  • Of the flights that depart from Green Bay Airport, 72% land on schedule at their destination.

  • Green Bay Airport is about 13 kilometres from central Green Bay. If you're driving, catching a taxi or ride-sharing from the centre, it'll take you 15 minutes or so to arrive, depending on the traffic.

  • Expect a trip time of around 40 minutes when using public transport.

  • Have an early flight from Green Bay Airport to Lisbon Airport? Avoid the hassle of rushing to the airport (and get some extra shut-eye) by choosing one of these hotels near GRB:

Arriving at Lisbon Airport (LIS)

  • The last thing you want is a long trip to your hotel if you're getting in late on a Green Bay Airport to Lisbon Airport flight. Book one of these accommodation options near LIS instead:

  • Get your adventure underway by picking up a Lisbon Airport rental car. Grab a set of wheels from Klass Wagen, Goldcar or OK Mobility and explore beyond Lisbon's main sights.

  • For the best deal, reserve your vehicle from Lisbon Airport around two weeks ahead.

When to fly to Lisbon Airport (LIS)

  • August is the busiest month for flights from Green Bay Airport to Lisbon Airport. To skip the crowds, head to Lisbon in March.

  • Book your flight from Green Bay Airport to Lisbon Airport for August if you'd like to explore Lisbon during its warmest month. You can expect temperatures of between 16ºC and 29ºC.

  • If you want to travel in cooler conditions, search for a cheap ticket from GRB to LIS in January. Average temperatures are between 8ºC and 16ºC then.

Explore more of Portugal

  • Lisbon has plenty to offer, but there are so many other parts of Portugal waiting to be discovered. Around 274 kilometres north of Lisbon, a visit to Porto will keep you on the go. Check out popular attractions like Ribeira District, Rio Douro and Livraria Lello.

  • If you're looking to explore another major destination in Portugal, head for Amadora, roughly 8 kilometres north-west of Lisbon. Roman Villa, Park Fantasia and Palácio dos Condes da Lousã are highlights.

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