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Cheap flights from Green Bay to Portugal from $318

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Green Bay to Portugal departing on 3/29. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Green Bay to Portugal

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
10:42 am - 8:10 am
GRB
-
LIS
15h 28m2 stops
United Airlines Logo
5:00 am - 9:31 pm
LIS
-
GRB
22h 31m2 stops
$498United Airlines
vie., ene. 23 - mar., ene. 27
United Airlines Logo
6:15 am - 10:15 am
GRB
-
LIS
22h 00m2 stops
United Airlines Logo
5:05 am - 9:14 pm
LIS
-
GRB
22h 09m2 stops
$597United Airlines
jue., ene. 1 - mié., abr. 1
United Airlines Logo
2:45 pm - 10:30 am
GRB
-
LIS
13h 45m2 stops
United Airlines Logo
5:05 am - 9:45 am
LIS
-
GRB
34h 40m2 stops
$648United Airlines
mar., mar. 31 - mar., abr. 7
Multiple Airlines Logo
5:16 pm - 2:50 pm
GRB
-
LIS
15h 34m2 stops
Multiple Airlines Logo
5:00 am - 4:31 pm
LIS
-
GRB
17h 31m2 stops
$658Multiple Airlines
lun., mar. 30 - mar., abr. 7
Delta Logo
11:04 am - 10:45 am
GRB
-
LIS
17h 41m2 stops
Delta Logo
10:00 am - 10:31 pm
LIS
-
GRB
18h 31m2 stops
$729Delta
lun., mar. 30 - lun., abr. 6
Delta Logo
5:16 pm - 5:50 pm
GRB
-
LIS
18h 34m2 stops
Delta Logo
10:00 am - 8:36 pm
LIS
-
GRB
16h 36m2 stops
$733Delta
mar., mar. 31 - lun., abr. 6

United Airlines flights from Green Bay to Portugal

Our best United Airlines deals on Green Bay to Portugal flight tickets
United Airlines
Jan 23
GRB10:42 amGreen Bay Austin-Straubel
15h 28m
2 stops
LIS8:10 amLisbon Humberto Delgado
Jan 27
LIS5:00 amLisbon Humberto Delgado
22h 31m
2 stops
GRB9:31 pmGreen Bay Austin-Straubel
$498
Find similar
United Airlines
Jan 1
GRB6:15 amGreen Bay Austin-Straubel
22h 00m
2 stops
LIS10:15 amLisbon Humberto Delgado
Apr 1
LIS5:05 amLisbon Humberto Delgado
22h 09m
2 stops
GRB9:14 pmGreen Bay Austin-Straubel
$597
Find similar
United Airlines
Mar 31
GRB2:45 pmGreen Bay Austin-Straubel
13h 45m
2 stops
LIS10:30 amLisbon Humberto Delgado
Apr 7
LIS5:05 amLisbon Humberto Delgado
34h 40m
2 stops
GRB9:45 amGreen Bay Austin-Straubel
$648
Find similar

Delta flights from Green Bay to Portugal

Our best Delta deals on Green Bay to Portugal flight tickets
Delta
Mar 30
GRB11:04 amGreen Bay Austin-Straubel
17h 41m
2 stops
LIS10:45 amLisbon Humberto Delgado
Apr 6
LIS10:00 amLisbon Humberto Delgado
18h 31m
2 stops
GRB10:31 pmGreen Bay Austin-Straubel
$729
Find similar
Delta
Mar 31
GRB5:16 pmGreen Bay Austin-Straubel
18h 34m
2 stops
LIS5:50 pmLisbon Humberto Delgado
Apr 6
LIS10:00 amLisbon Humberto Delgado
16h 36m
2 stops
GRB8:36 pmGreen Bay Austin-Straubel
$733
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Green Bay to Portugal 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, momondo users made 832,500 searches. Data last updated diciembre 11, 2025.
Use the filters below to find and compare flights from Green Bay to Portugal that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Green BayLisbon

GRB - LIS

GRBLIS

Green Bay Austin-Straubel

vie. 1/23

10:42 am-8:10 am

2 stops15h 28m

Lisbon Humberto Delgado

mar. 1/27

5:00 am-9:31 pm

2 stops22h 31m

$498

Green BayLisbon

GRB - LIS

GRBLIS

Green Bay Austin-Straubel

jue. 1/1

6:15 am-10:15 am

2 stops22h 00m

Lisbon Humberto Delgado

mié. 4/1

5:05 am-9:14 pm

2 stops22h 09m

$597

Green BayLisbon

GRB - LIS

GRBLIS

Green Bay Austin-Straubel

mar. 3/31

2:45 pm-10:30 am

2 stops13h 45m

Lisbon Humberto Delgado

mar. 4/7

5:05 am-9:45 am

2 stops34h 40m

$648

Green BayLisbon

GRB - LIS

GRBLIS

Green Bay Austin-Straubel

lun. 3/30

5:16 pm-2:50 pm

2 stops15h 34m

Lisbon Humberto Delgado

mar. 4/7

5:00 am-4:31 pm

2 stops17h 31m

$658

Green BayLisbon

GRB - LIS

GRBLIS

Green Bay Austin-Straubel

lun. 3/30

11:04 am-10:45 am

2 stops17h 41m

Lisbon Humberto Delgado

lun. 4/6

10:00 am-10:31 pm

2 stops18h 31m

$729

Green BayLisbon

GRB - LIS

GRBLIS

Green Bay Austin-Straubel

mar. 3/31

5:16 pm-5:50 pm

2 stops18h 34m

Lisbon Humberto Delgado

lun. 4/6

10:00 am-8:36 pm

2 stops16h 36m

$733

Green BayLisbon

GRB - LIS

GRBLIS

Green Bay Austin-Straubel

dom. 3/29

6:38 pm-10:05 am

2 stops33h 27m

$318

Green BayLisbon

GRB - LIS

GRBLIS

Green Bay Austin-Straubel

mar. 5/5

11:30 am-11:00 pm

2 stops29h 30m

$335

Green BayLisbon

GRB - LIS

GRBLIS

Green Bay Austin-Straubel

lun. 3/30

6:38 pm-5:55 pm

2 stops17h 17m

$341

Green BayLisbon

GRB - LIS

GRBLIS

Green Bay Austin-Straubel

vie. 5/1

11:30 am-11:10 pm

2 stops29h 40m

$378

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first
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See travel insights to Portugal from

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

Fastest flight time

13h 45m

Direct flights

None
The fastest flight from Green Bay to Portugal takes 13h 45m
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.

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Find better results for your trip to Portugal

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