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$325+ Cheap flights from Green Bay to Portland, ME (GRB - PWM)

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 5/20. Fares are subject to change and may not be available on all flights or dates of travel.
GRB — PWM
May 27 — Jun 31
Wed 5/27
Wed 6/3
1 adult, Economy
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Cheap flight deals from Green Bay to Portland

Cheapest flights from Green Bay to Portland
Explore the most affordable flight options available from Green Bay to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 27, 2026.

This Delta deal was found by Cheapflights users on 4/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/205:20 am
GRB
-
PWM
1 stop6h 50m
Delta
Wed 5/2712:50 pm
PWM
-
GRB
2 stops11h 02m
Delta
Deal found 4/22$325
This United Airlines deal was found by Cheapflights users on 4/25. 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 7/32:35 pm
GRB
-
PWM
1 stop6h 06m
United Airlines
Tue 7/76:00 am
PWM
-
GRB
1 stop6h 59m
United Airlines
Deal found 4/25$344
This United Airlines deal was found by Cheapflights users on 4/22. 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.
Tue 6/302:35 pm
GRB
-
PWM
1 stop6h 07m
United Airlines
Wed 7/85:15 am
PWM
-
GRB
2 stops7h 44m
United Airlines
Deal found 4/22$396
This United Airlines deal was found by Cheapflights users on 4/22. 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 6/242:35 pm
GRB
-
PWM
1 stop6h 16m
United Airlines
Wed 7/85:15 am
PWM
-
GRB
2 stops7h 44m
United Airlines
Deal found 4/22$398
This United Airlines deal was found by Cheapflights users on 4/22. 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.
Tue 6/302:35 pm
GRB
-
PWM
1 stop6h 07m
United Airlines
Thu 7/96:00 am
PWM
-
GRB
1 stop5h 01m
United Airlines
Deal found 4/22$400
This United Airlines deal was found by Cheapflights users on 4/22. 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 6/2712:34 pm
GRB
-
PWM
2 stops10h 17m
United Airlines
Wed 7/85:15 am
PWM
-
GRB
2 stops7h 44m
United Airlines
Deal found 4/22$401
This United Airlines deal was found by Cheapflights users on 4/22. 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.
Thu 5/75:00 am
GRB
-
PWM
1 stop4h 28m
United Airlines
Mon 5/116:00 am
PWM
-
GRB
1 stop5h 00m
United Airlines
Deal found 4/22$425

Find flight deals from Green Bay to Portland

Discover tips and strategies to find the most affordable flight options for your journey from Green Bay (GRB) to Portland (PWM). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated April 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$325
(Delta)

Popular in

January

Cheapest in

August

Average price

$372
Provider with most accurate pricing for Green Bay Austin-Straubel-Portland flight deals.
Search Deals
Provider most trusted by Cheapflights users for Green Bay Austin-Straubel-Portland flights.
Search Deals
From Green Bay Austin-Straubel to Portland
Search Deals
Highest demand for flights based on searches. 32% potential increase in price ($217 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($25 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Green Bay to Portland 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 April 27, 2026.
Use the filters below to find and compare flights from Green Bay to Portland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Green BayPortland

GRB - PWM

GRBPWM

Green Bay Austin-Straubel

Fri 7/3

2:35 pm-9:41 pm

1 stop6h 06m

Portland

Tue 7/7

5:15 am-11:59 am

2 stops7h 44m

$325
Quickest round-trip

Green BayPortland

GRB - PWM

GRBPWM

Green Bay Austin-Straubel

Thu 5/7

5:00 am-10:28 am

1 stop4h 28m

Portland

Mon 5/11

6:00 am-10:00 am

1 stop5h 00m

$425

Green BayPortland

GRB - PWM

GRBPWM

Green Bay Austin-Straubel

Mon 6/29

5:00 am-1:25 pm

2 stops7h 25m

Portland

Thu 7/9

6:00 am-10:01 am

1 stop5h 01m

$444

Green BayPortland

GRB - PWM

GRBPWM

Green Bay Austin-Straubel

Fri 6/26

2:35 pm-9:41 pm

1 stop6h 06m

Portland

Wed 7/8

5:15 am-2:00 pm

3 stops9h 45m

$484

Green BayPortland

GRB - PWM

GRBPWM

Green Bay Austin-Straubel

Wed 6/3

3:44 pm-9:51 pm

1 stop5h 07m

Portland

Fri 6/5

7:16 pm-2:00 pm

2 stops19h 44m

$524

Green BayPortland

GRB - PWM

GRBPWM

Green Bay Austin-Straubel

Wed 6/24

6:30 am-2:34 pm

2 stops7h 04m

Portland

Wed 7/8

5:15 am-2:00 pm

3 stops9h 45m

$539

Green BayPortland

GRB - PWM

GRBPWM

Green Bay Austin-Straubel

Wed 6/3

6:00 am-5:07 pm

2 stops10h 07m

Portland

Fri 6/5

2:24 pm-11:51 pm

2 stops10h 27m

$576

Green BayPortland

GRB - PWM

GRBPWM

Green Bay Austin-Straubel

Thu 7/23

6:00 am-12:09 am

1 stop17h 09m

Portland

Sat 8/8

6:15 am-11:28 pm

1 stop18h 13m

$582

Green BayPortland

GRB - PWM

GRBPWM

Green Bay Austin-Straubel

Sun 10/4

6:14 am-12:13 am

1 stop16h 59m

Portland

Sat 10/10

7:14 am-11:10 pm

1 stop16h 56m

$599

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/25

Sorted by cheapest first

Compare providers for flights from Green Bay to Portland

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Green Bay to Portland in April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Green Bay-Portland, Maine flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Green Bay-Portland, Maine flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Green Bay-Portland, Maine flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Green Bay-Portland, Maine flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Green Bay-Portland, Maine flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Green Bay to Portland

Have a flexible travel schedule? Discover the best time to fly to Portland 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 Portland

How much does it cost to fly round-trip from Green Bay to Portland, Maine?

Reviews of airlines servicing Portland

Get insights into the airlines that provide service to Portland. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Portland. Reviews last updated April 27, 2026.
Read reviews from past customers who have flown Delta,United Airlines, andAmerican Airlines from Green Bay to Portland. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,463 reviews

Overall

7.9

Food

7.2

Boarding

8.1

Crew

8.5

Entertainment

7.8

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,463 reviews
Delta
7.9
Good
8,463 reviews

Overall

7.9

Food

7.2

Boarding

8.1

Crew

8.5

Entertainment

7.8

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,665 reviews
Delta
7.9
Good
8,463 reviews

Overall

7.9

Food

7.2

Boarding

8.1

Crew

8.5

Entertainment

7.8

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.1
Good
11,668 reviews
Delta
7.9
Good
8,463 reviews

Overall

7.9

Food

7.2

Boarding

8.1

Crew

8.5

Entertainment

7.8

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

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

  • How long is the flight from Green Bay to Portland, Maine?

    Airlines like United Airlines fly from Green Bay to Portland, Maine in about 6h 06m. The time it takes to get you to your destination can typically vary by up to . Green Bay and Portland, Maine are separated by a distance of 884 mi.

  • What are the cheapest airlines flying from Green Bay to Portland, Maine round-trip?

    Our cheapest airline available from Green Bay to Portland, Maine is Delta. Our recent data shows that you can find tickets from as low as $248 on this airline. Additional options worth looking into are American Airlines and United Airlines, starting at $259 and $318 round-trip. You may be able to fly from Green Bay to Portland, Maine for 45% less than the average price by searching for these airlines.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Green Bay to Portland 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

Traveling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
North Conway
Brunswick
Lewiston
Conway

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Top 3 airlines flying from Green Bay to Portland

Discover the top 3 airlines that operate flights from Green Bay to Portland. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$248Average$518FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$259Average$487FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$318Average$427FlexibilityNo cancel feeOn-time69%

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