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Portugal

$599+ Cheap flights from Green Bay (GRB) to Portugal

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 1/28. Fares are subject to change and may not be available on all flights or dates of travel.
GRB — LIS
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap flight deals from Green Bay to Portugal

Cheapest flights from Green Bay to Portugal
Explore the most affordable flight options available from Green Bay to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

This United Airlines deal was found by Cheapflights users on 1/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/286:31 am
GRB
-
LIS
2 stops19h 39m
United Airlines
Sun 2/15:00 am
LIS
-
GRB
2 stops17h 47m
United Airlines
Deal found 1/26$599
This United Airlines deal was found by Cheapflights users on 1/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/48:20 am
GRB
-
LIS
2 stops17h 50m
United Airlines
Sun 2/810:15 am
LIS
-
GRB
2 stops17h 16m
United Airlines
Deal found 1/28$612
This American Airlines deal was found by Cheapflights users on 1/27. 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 10/118:10 pm
GRB
-
LIS
2 stops15h 45m
American Airlines
Wed 10/216:35 am
LIS
-
GRB
2 stops19h 13m
American Airlines
Deal found 1/27$648
This United Airlines deal was found by Cheapflights users on 1/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/285:28 pm
GRB
-
LIS
2 stops35h 32m
United Airlines
Tue 4/75:05 am
LIS
-
GRB
2 stops34h 55m
United Airlines
Deal found 1/27$909
This Ovago deal was found by Cheapflights users on 1/26. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/135:28 pm
GRB
-
LIS
2 stops24h 22m
Lufthansa
Fri 3/205:00 am
LIS
-
GRB
2 stops16h 53m
Lufthansa
Deal found 1/26$962
This United Airlines deal was found by Cheapflights users on 1/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/265:18 pm
GRB
-
LIS
2 stops35h 42m
United Airlines
Sun 7/51:00 pm
LIS
-
GRB
2 stops33h 43m
United Airlines
Deal found 1/28$1,205
This oojo deal was found by Cheapflights users on 1/27. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/262:59 pm
GRB
-
LIS
2 stops26h 11m
British Airways
Sun 7/56:50 pm
LIS
-
GRB
2 stops29h 29m
British Airways
Deal found 1/27$1,213
This United Airlines deal was found by Cheapflights users on 1/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/143:43 pm
GRB
-
LIS
2 stops16h 37m
United Airlines
Sat 3/215:00 am
LIS
-
GRB
2 stops16h 52m
United Airlines
Deal found 1/28$1,225
This Gurufare deal was found by Cheapflights users on 1/27. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/112:49 pm
GRB
-
LIS
1 stop11h 21m
TAP AIR PORTUGAL
Wed 10/2112:40 pm
LIS
-
GRB
1 stop13h 08m
TAP AIR PORTUGAL
Deal found 1/27$1,687
This United Airlines deal was found by Cheapflights users on 1/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/285:28 pm
GRB
-
LIS
2 stops47h 17m
United Airlines
Sat 4/47:25 am
LIS
-
GRB
2 stops36h 48m
United Airlines
Deal found 1/29$1,879
This Cheapflightsfares deal was found by Cheapflights users on 1/27. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/221:30 pm
GRB
-
LIS
2 stops15h 20m
Multiple Airlines
Wed 5/66:15 am
LIS
-
GRB
2 stops16h 35m
Multiple Airlines
Deal found 1/27$3,365

Find flight deals from Green Bay to Portugal

Keep the following information in mind while searching for Green Bay to Portugal flight deals. Data was last updated January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$909
(United Airlines)
Provider with most accurate pricing for Green Bay Austin-Straubel-Lisbon Humberto Delgado flight deals.
Search Deals
Provider most trusted by Cheapflights users for Green Bay Austin-Straubel-Lisbon Humberto Delgado flights.
Search Deals
From Green Bay Austin-Straubel to Portugal
Search Deals

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated January 29, 2026.
Use the filters below to find and compare flights from Green Bay to Portugal that are best for you.

Fly from

Green Bay

Fly to

Portugal

Route

Depart

Return

Price

Green BayLisbon

GRB - LIS

GRBLIS

Green Bay Austin-Straubel

Sat 3/28

5:28 pm-10:00 am

2 stops35h 32m

Lisbon Humberto Delgado

Tue 4/7

5:05 am-10:00 am

2 stops34h 55m

$909

Green BayLisbon

GRB - LIS

GRBLIS

Green Bay Austin-Straubel

Fri 3/13

5:28 pm-10:50 pm

2 stops24h 22m

Lisbon Humberto Delgado

Fri 3/20

5:00 am-4:53 pm

2 stops16h 53m

$962

Green BayLisbon

GRB - LIS

GRBLIS

Green Bay Austin-Straubel

Fri 6/26

5:18 pm-11:00 am

2 stops35h 42m

Lisbon Humberto Delgado

Sun 7/5

1:00 pm-4:43 pm

2 stops33h 43m

$1,205

Green BayLisbon

GRB - LIS

GRBLIS

Green Bay Austin-Straubel

Fri 6/26

2:59 pm-11:10 pm

2 stops26h 11m

Lisbon Humberto Delgado

Sun 7/5

6:50 pm-6:19 pm

2 stops29h 29m

$1,213

Green BayLisbon

GRB - LIS

GRBLIS

Green Bay Austin-Straubel

Sat 3/14

3:43 pm-1:20 pm

2 stops16h 37m

Lisbon Humberto Delgado

Sat 3/21

5:00 am-4:52 pm

2 stops16h 52m

$1,225

Green BayLisbon

GRB - LIS

GRBLIS

Green Bay Austin-Straubel

Sat 3/28

5:28 pm-9:45 pm

2 stops47h 17m

Lisbon Humberto Delgado

Sat 4/4

7:25 am-2:13 pm

2 stops36h 48m

$1,879

Green BayLisbon

GRB - LIS

GRBLIS

Green Bay Austin-Straubel

Wed 4/22

1:30 pm-10:50 am

2 stops15h 20m

Lisbon Humberto Delgado

Wed 5/6

6:15 am-4:50 pm

2 stops16h 35m

$3,365

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

Best time to book a flight from Green Bay to Portugal

Have a flexible travel schedule? Discover the best time to fly to Portugal from Green Bay with our price prediction graph.
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 Portugal
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Green Bay to Portugal. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Green Bay to Portugal?

    For a flight from Green Bay to Portugal, you will be flying from Austin-Straubel. Green Bay Austin-Straubel (GRB) is just 5.9 mi from the center of the city.

  • How long is the flight from Green Bay to Portugal?

    Departing from Green Bay to Portugal will take you 24h 22m. The distance between Green Bay and Portugal is about 3934 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • Can I find deals for flights from Green Bay to Portugal that include hotel bookings?

    Yes. In addition to deals on Green Bay to Portugal flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Green Bay to Portugal?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Green Bay to Portugal.

  • Can I find deals for business class flights from Green Bay to Portugal?

    Yes. Cheapflights offers flight deals from Green Bay to Portugal by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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