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$166+ Cheap flights from Green Bay to Portland, ME (GRB - PWM)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/5. Fares are subject to change and may not be available on all flights or dates of travel.
GRB — PWM
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
1 adult, Economy
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Cheap 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 July 29, 2025.

Round-trip from

$249
(American Airlines)

One-way from

$166
(Delta)
From Green Bay Austin-Straubel to Portland
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One-way flight from Green Bay Austin-Straubel to Portland
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Find 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 July 29, 2025.

This American Airlines deal was found by Cheapflights users on 7/27. 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.
Sat 8/303:02 pmGRB - PWM
1 stop7h 57mAmerican Airlines
Sat 9/66:15 amPWM - GRB
1 stop5h 00mAmerican Airlines
Deal found 7/27$249
This United Airlines deal was found by Cheapflights users on 7/28. 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 9/273:45 pmGRB - PWM
1 stop4h 59mUnited Airlines
Tue 9/304:57 pmPWM - GRB
1 stop6h 43mUnited Airlines
Deal found 7/28$256
This Delta deal was found by Cheapflights users on 7/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/285:34 amGRB - PWM
1 stop5h 55mDelta
Tue 9/306:00 amPWM - GRB
2 stops11h 11mDelta
Deal found 7/28$340

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 July 29, 2025.
Use the filters below to find and compare flights from Green Bay to Portland that are best for you.

Fly from

Green Bay

Fly to

Portland

Route

Depart

Return

Price

Green BayPortland

GRB - PWM

GRBPWM

Green Bay Austin-Straubel

Sat 8/30

3:02 pm-11:59 pm

1 stop7h 57m

Portland

Sat 9/6

6:15 am-10:15 am

1 stop5h 00m

$249

Green BayPortland

GRB - PWM

GRBPWM

Green Bay Austin-Straubel

Sat 9/27

3:45 pm-9:44 pm

1 stop4h 59m

Portland

Tue 9/30

4:57 pm-10:40 pm

1 stop6h 43m

$256

Green BayPortland

GRB - PWM

GRBPWM

Green Bay Austin-Straubel

Sun 9/28

5:34 am-12:29 pm

1 stop5h 55m

Portland

Tue 9/30

6:00 am-4:11 pm

2 stops11h 11m

$340

Green BayPortland

GRB - PWM

GRBPWM

Green Bay Austin-Straubel

Tue 8/5

5:32 am-12:02 pm

1 stop5h 30m

$166

Green BayPortland

GRB - PWM

GRBPWM

Green Bay Austin-Straubel

Tue 8/5

2:51 pm-11:59 pm

2 stops8h 08m

$196

Green BayPortland

GRB - PWM

GRBPWM

Green Bay Austin-Straubel

Wed 8/13

1:10 pm-11:59 pm

2 stops9h 49m

$302

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

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

What is the cheapest month to book a flight from Green Bay to Portland, Maine?

Currently, January is the cheapest month in which you can book a flight from Green Bay to Portland, Maine (average of $296). Flying from Green Bay to Portland, Maine in July is currently the most expensive (average of $394). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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 July 29, 2025.
Read reviews from past customers who have flown Delta, United Airlines, and American 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
8.0
Very good
7,977 reviews

Crew

8.5

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,977 reviews
Delta
8.0
Very good
7,977 reviews

Crew

8.5

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,899 reviews
Delta
8.0
Very good
7,977 reviews

Crew

8.5

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,977 reviews

Crew

8.5

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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.

  • 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 American Airlines. Our recent data shows that you can find tickets from as low as $249 on this airline. Additional options worth looking into are United Airlines and Delta, starting at $256 and $340 round-trip.

  • What are the cheapest airlines to fly from Green Bay to Portland, Maine one-way?

    The cheapest airline one-way is Delta, with whom users have recently found tickets for as low as $166. However, be on the lookout for offers from American Airlines and United Airlines, as they are both options that can get you from Green Bay to Portland, Maine for a low price.

  • 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.

  • What is the cheapest month to book a flight from Green Bay to Portland, Maine?

    Currently, January is the cheapest month in which you can book a flight from Green Bay to Portland, Maine (average of $296). Flying from Green Bay to Portland, Maine in July is currently the most expensive (average of $394). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Portland?

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

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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 July 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$248Average$567FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$259Average$547FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$318Average$558FlexibilityNo cancel feeOn-time69%

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