When did momondo last update prices for flights from Green Bay Austin-Straubel Airport to Portugal?

Prices for flights from Green Bay Austin-Straubel Airport to Portugal were last updated today.

How old do you have to be to fly from Green Bay Austin-Straubel Airport to Portugal?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Green Bay Austin-Straubel Airport to Portugal.

What documentation or ID do you need to fly to Portugal?

The travel and health documents required for your trip to Portugal can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Portugal. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$537 Cheap Flights from Green Bay to Portugal in 2025/26

1 adult

0 bags

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Green Bay to Portugal

Round-trip

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:00 am - 10:15 amGRB-LIS

20h 15m2 stops

11:20 am - 10:07 amLIS-GRB

28h 47m2 stops

$537United Airlines

Find Deal

Tue, Dec 2 - Tue, Dec 9

11:11 am - 8:00 amGRB-LIS

14h 49m2 stops

11:15 am - 8:42 pmLIS-GRB

15h 27m2 stops

$554Air France

Find Deal

Wed, Dec 10 - Tue, Dec 23

5:27 pm - 11:30 pmGRB-LIS

24h 03m2 stops

2:10 pm - 9:38 pmLIS-GRB

37h 28m2 stops

$559Lufthansa

Find Deal

Mon, Nov 10 - Mon, Nov 17

5:27 pm - 11:30 pmGRB-LIS

24h 03m2 stops

2:10 pm - 9:38 pmLIS-GRB

37h 28m2 stops

$560Lufthansa

Find Deal

Mon, Nov 10 - Mon, Nov 17

10:45 am - 10:15 amGRB-LIS

17h 30m2 stops

5:00 am - 7:02 pmLIS-GRB

20h 02m2 stops

$590United Airlines

Find Deal

Thu, Dec 11 - Fri, Dec 26

5:21 pm - 10:50 pmGRB-LIS

23h 29m2 stops

6:10 am - 4:47 pmLIS-GRB

40h 37m2 stops

$840Lufthansa

Find Deal

Fri, Dec 12 - Fri, Dec 26

4:32 pm - 2:50 pmGRB-LIS

16h 18m2 stops

8:20 am - 11:31 pmLIS-GRB

21h 11m3 stops

$1,051Multiple Airlines

Find Deal

Wed, Dec 10 - Tue, Dec 23

10:46 am - 9:05 amGRB-LIS

16h 19m1 stop

10:35 am - 11:28 pmLIS-GRB

18h 53m2 stops

$1,069American Airlines

Find Deal

Mon, Nov 10 - Mon, Nov 17

10:46 am - 9:05 amGRB-LIS

16h 19m1 stop

10:35 am - 11:28 pmLIS-GRB

18h 53m2 stops

$1,070American Airlines

Find Deal

Mon, Nov 10 - Mon, Nov 17

6:39 pm - 2:50 pmGRB-LIS

15h 11m2 stops

5:00 am - 4:43 pmLIS-GRB

16h 43m2 stops

$5,316Multiple Airlines

Find Deal

Sat, Mar 14 - Fri, Mar 20

United Airlines flights from Green Bay to Portugal

Our best United Airlines deals on Green Bay to Portugal flight tickets

United Airlines

Dec 2

GRB8:00 amGreen Bay Austin-Straubel

20h 15m

2 stops

LIS10:15 amLisbon Humberto Delgado

Dec 9

LIS11:20 amLisbon Humberto Delgado

28h 47m

2 stops

GRB10:07 amGreen Bay Austin-Straubel

$537

Find similar

United Airlines

Dec 11

GRB10:45 amGreen Bay Austin-Straubel

17h 30m

2 stops

LIS10:15 amLisbon Humberto Delgado

Dec 26

LIS5:00 amLisbon Humberto Delgado

20h 02m

2 stops

GRB7:02 pmGreen Bay Austin-Straubel

$590

Find similar

United Airlines

Dec 6

GRB3:51 pmGreen Bay Austin-Straubel

35h 29m

2 stops

LIS9:20 amLisbon Humberto Delgado

Dec 10

LIS11:00 amLisbon Humberto Delgado

32h 00m

2 stops

GRB1:00 pmGreen Bay Austin-Straubel

$1,021

Find similar

Lufthansa flights from Green Bay to Portugal

Our best Lufthansa deals on Green Bay to Portugal flight tickets

Lufthansa

Nov 10

GRB5:27 pmGreen Bay Austin-Straubel

24h 03m

2 stops

LIS11:30 pmLisbon Humberto Delgado

Nov 17

LIS2:10 pmLisbon Humberto Delgado

37h 28m

2 stops

GRB9:38 pmGreen Bay Austin-Straubel

$559

Find similar

Lufthansa

Nov 10

GRB5:27 pmGreen Bay Austin-Straubel

24h 03m

2 stops

LIS11:30 pmLisbon Humberto Delgado

Nov 17

LIS2:10 pmLisbon Humberto Delgado

37h 28m

2 stops

GRB9:38 pmGreen Bay Austin-Straubel

$560

Find similar

Lufthansa

Dec 12

GRB5:21 pmGreen Bay Austin-Straubel

23h 29m

2 stops

LIS10:50 pmLisbon Humberto Delgado

Dec 26

LIS6:10 amLisbon Humberto Delgado

40h 37m

2 stops

GRB4:47 pmGreen Bay Austin-Straubel

$840

Find similar

Fly from

Fly to

Route

Depart

Return

Price

Green BayLisbon

GRB - LIS

GRBLIS

Green Bay Austin-Straubel

Tue 12/2

8:00 am-10:15 am

2 stops20h 15m

Lisbon Humberto Delgado

Tue 12/9

11:20 am-10:07 am

2 stops28h 47m

$537

Green BayLisbon

GRB - LIS

GRBLIS

Green Bay Austin-Straubel

Wed 12/10

11:11 am-8:00 am

2 stops14h 49m

Lisbon Humberto Delgado

Tue 12/23

11:15 am-8:42 pm

2 stops15h 27m

$554

Green BayLisbon

GRB - LIS

GRBLIS

Green Bay Austin-Straubel

Mon 11/10

5:27 pm-11:30 pm

2 stops24h 03m

Lisbon Humberto Delgado

Mon 11/17

2:10 pm-9:38 pm

2 stops37h 28m

$559

Green BayLisbon

GRB - LIS

GRBLIS

Green Bay Austin-Straubel

Mon 11/10

5:27 pm-11:30 pm

2 stops24h 03m

Lisbon Humberto Delgado

Mon 11/17

2:10 pm-9:38 pm

2 stops37h 28m

$560

Green BayLisbon

GRB - LIS

GRBLIS

Green Bay Austin-Straubel

Thu 12/11

10:45 am-10:15 am

2 stops17h 30m

Lisbon Humberto Delgado

Fri 12/26

5:00 am-7:02 pm

2 stops20h 02m

$590

Green BayLisbon

GRB - LIS

GRBLIS

Green Bay Austin-Straubel

Fri 12/12

5:21 pm-10:50 pm

2 stops23h 29m

Lisbon Humberto Delgado

Fri 12/26

6:10 am-4:47 pm

2 stops40h 37m

$840

Green BayLisbon

GRB - LIS

GRBLIS

Green Bay Austin-Straubel

Wed 12/10

4:32 pm-2:50 pm

2 stops16h 18m

Lisbon Humberto Delgado

Tue 12/23

8:20 am-11:31 pm

3 stops21h 11m

$1,051

Green BayLisbon

GRB - LIS

GRBLIS

Green Bay Austin-Straubel

Mon 11/10

10:46 am-9:05 am

1 stop16h 19m

Lisbon Humberto Delgado

Mon 11/17

10:35 am-11:28 pm

2 stops18h 53m

$1,069

Green BayLisbon

GRB - LIS

GRBLIS

Green Bay Austin-Straubel

Mon 11/10

10:46 am-9:05 am

1 stop16h 19m

Lisbon Humberto Delgado

Mon 11/17

10:35 am-11:28 pm

2 stops18h 53m

$1,070

Green BayLisbon

GRB - LIS

GRBLIS

Green Bay Austin-Straubel

Sat 3/14

6:39 pm-2:50 pm

2 stops15h 11m

Lisbon Humberto Delgado

Fri 3/20

5:00 am-4:43 pm

2 stops16h 43m

$5,316

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

How to get the cheapest flight ticket from Green Bay to Portugal

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Portugal?

According to our data, Saturday is the cheapest day to fly to Portugal from Green Bay. The lowest ticket price found for a Saturday departure recently was $724. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. The most expensive day to fly to Portugal is Friday, with ticket prices averaging around $945.

What is the cheapest time of day to depart on your flight to Portugal?

Our most recent data shows that the best time of day to fly to Portugal is in the morning. Flights from Green Bay to Portugal during this time can be as low as $779. In the afternoon is when there is more demand to fly to Portugal, so prices are often more expensive at around $797 per ticket.

Cheap Green Bay to Portugal flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Green Bay to Portugal

Direct flights	None

There are no direct flights from Green Bay to Portugal. There are no popular flight routes from Green Bay to Portugal.

Search flight deals

When did momondo last update prices for flights from Green Bay Austin-Straubel Airport to Portugal?
Prices for flights from Green Bay Austin-Straubel Airport to Portugal were last updated today.
How old do you have to be to fly from Green Bay Austin-Straubel Airport to Portugal?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Green Bay Austin-Straubel Airport to Portugal.
What documentation or ID do you need to fly to Portugal?
The travel and health documents required for your trip to Portugal can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Portugal. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Why use momondo?

Why should I use momondo to find a flight deal from Green Bay to Portugal?

Finding the right flight to Portugal from Green Bay is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Portugal quick and easy, saving you time and money.

Can I find flights from Green Bay to Portugal with flexible booking policies on momondo?

momondo does allow users to show only those flights to Portugal from Green Bay which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Green Bay to Portugal?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Portugal from Green Bay.

I’m not ready to book a flight from Green Bay to Portugal right now. Can momondo alert me if prices change?

Price alerts on flights to Portugal from Green Bay are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.