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Green Bay

$300+ Cheap flights from Portland, ME to Green Bay (PWM - GRB)

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 9/7. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — GRB
Sep 14 — Sep 211
Mon 9/14
Mon 9/21
1 adult, Economy
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Cheap flight deals from Portland to Green Bay

Cheapest flights from Portland to Green Bay
Explore the most affordable flight options available from Portland to Green Bay. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 15, 2026.

This American Airlines deal was found by Cheapflights users on 8/11. 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.
Thu 9/105:38 pm -
1 stop7h 35m
Sun 9/135:43 am -
1 stop6h 22m
Deal found 8/11$319
This American Airlines deal was found by Cheapflights users on 8/12. 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.
Wed 9/27:28 am -
2 stops11h 57m
Sat 9/512:26 pm -
2 stops8h 31m
Deal found 8/12$329
This United Airlines deal was found by Cheapflights users on 8/13. 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 9/26:03 am -
1 stop6h 52m
Sat 9/52:31 pm -
1 stop5h 52m
Deal found 8/13$334
This Delta deal was found by Cheapflights users on 8/12. 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.
Tue 9/111:01 am -
2 stops12h 33m
Sat 9/511:17 am -
2 stops9h 14m
Deal found 8/12$344
This Delta deal was found by Cheapflights users on 8/12. 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 8/2611:50 am -
1 stop4h 42m
Sun 8/305:30 am -
1 stop6h 37m
Deal found 8/12$349
This Delta deal was found by Cheapflights users on 8/12. 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 8/2611:50 am -
1 stop4h 42m
Sat 8/2911:07 am -
2 stops9h 24m
Deal found 8/12$354
This American Airlines deal was found by Cheapflights users on 8/12. 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.
Wed 8/263:06 pm -
2 stops10h 10m
Sat 8/295:37 am -
2 stops9h 56m
Deal found 8/12$359
This Delta deal was found by Cheapflights users on 8/12. 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 9/211:50 am -
1 stop4h 42m
Sun 9/66:15 am -
2 stops8h 46m
Deal found 8/12$369
This Delta deal was found by Cheapflights users on 8/12. 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.
Fri 8/2112:47 pm -
2 stops10h 47m
Sat 8/2911:07 am -
1 stop3h 54m
Deal found 8/12$384

Find flight deals from Portland to Green Bay

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PWM) to Green Bay (GRB). 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 August 15, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$319
(American Airlines)

One-way from

$300
(United Airlines)

Popular in

July

Cheapest in

January

Average price

$481
Provider with most accurate pricing for Portland-Green Bay Austin-Straubel flight deals.
Search Deals
Provider most trusted by Cheapflights users for Portland-Green Bay Austin-Straubel flights.
Search Deals
From Portland to Green Bay Austin-Straubel
Search Deals
One-way flight from Portland to Green Bay Austin-Straubel
Search Deals
Highest demand for flights based on searches. 20% potential increase in price ($129 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($31 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Portland to Green Bay 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 August 15, 2026.
Use the filters below to find and compare flights from Portland to Green Bay that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandGreen Bay

PWM Portland - GRB Green Bay Austin-Straubel

PWMGRB

Portland

Wed 9/9

6:00 am-12:05 pm

1 stop7h 05m

Green Bay Austin-Straubel

Tue 9/15

7:05 am-2:31 pm

1 stop6h 26m

$319

PortlandGreen Bay

PWM Portland - GRB Green Bay Austin-Straubel

PWMGRB

Portland

Wed 9/9

4:41 pm-12:13 am

2 stops8h 32m

Green Bay Austin-Straubel

Tue 9/15

4:04 pm-11:47 pm

1 stop6h 43m

$324

PortlandGreen Bay

PWM Portland - GRB Green Bay Austin-Straubel

PWMGRB

Portland

Thu 9/10

5:05 pm-12:13 am

2 stops8h 08m

Green Bay Austin-Straubel

Sun 9/13

5:43 am-1:05 pm

1 stop6h 22m

$324

PortlandGreen Bay

PWM Portland - GRB Green Bay Austin-Straubel

PWMGRB

Portland

Fri 9/11

5:05 pm-12:13 am

2 stops8h 08m

Green Bay Austin-Straubel

Sun 9/13

5:43 am-1:05 pm

1 stop6h 22m

$324
Quickest round-trip

PortlandGreen Bay

PWM Portland - GRB Green Bay Austin-Straubel

PWMGRB

Portland

Wed 9/2

6:03 am-11:55 am

1 stop6h 52m

Green Bay Austin-Straubel

Sat 9/5

2:31 pm-9:23 pm

1 stop5h 52m

$334

PortlandGreen Bay

PWM Portland - GRB Green Bay Austin-Straubel

PWMGRB

Portland

Wed 9/2

6:09 pm-12:16 am

1 stop7h 07m

Green Bay Austin-Straubel

Sat 9/5

3:46 pm-10:48 pm

1 stop6h 02m

$334

PortlandGreen Bay

PWM Portland - GRB Green Bay Austin-Straubel

PWMGRB

Portland

Thu 9/3

6:09 pm-12:16 am

1 stop7h 07m

Green Bay Austin-Straubel

Thu 9/10

4:04 pm-11:47 pm

1 stop6h 43m

$396
Cheapest one-way
Quickest one-way

PortlandGreen Bay

PWM Portland - GRB Green Bay Austin-Straubel

PWMGRB

Portland

Mon 9/7

6:03 am-11:49 am

1 stop6h 46m

$300

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/11

Sorted by cheapest first

Compare providers for flights from Portland to Green Bay

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 Portland to Green Bay in August.
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 Portland, Maine-Green Bay flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Portland, Maine-Green Bay flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Portland, Maine-Green Bay flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Portland, Maine-Green Bay 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 Portland, Maine-Green Bay 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 Portland to Green Bay

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

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

Airfare is typical for this route at the moment.

Portland, Maine to Green Bay flights typically cost between $308 and $494 in September.
The cheapest round-trip price found within the last 5 days was $319 on American Airlines (Sep 10-Sep 13).

Reviews of airlines servicing Green Bay

Get insights into the airlines that provide service to Green Bay. 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 Green Bay. Reviews last updated August 15, 2026.
Peruse reviews from past customers who have flown with United Airlines from Portland to Green Bay to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
10,108 reviews

Comfort

7.3

Crew

8.1

Overall

7.4

Boarding

7.7

Entertainment

7.1

Food

6.7

Reviews

1 / 20
4.0
Okay

Chris,Aug 2026

MIA - ORD

Had to go through TSA again, already purchased bottle drink. TSA would not let through, United changed gates last minute. This experience bad for everyone. Staff rude, not our fault. Staff from Chicago to Wichita excellent!
United Airlines
7.4
Good
10,108 reviews
United Airlines
7.4
Good
10,108 reviews

Comfort

7.3

Crew

8.1

Overall

7.4

Boarding

7.7

Entertainment

7.1

Food

6.7

Reviews

1 / 20
4.0
Okay

Chris,Aug 2026

MIA - ORD

Had to go through TSA again, already purchased bottle drink. TSA would not let through, United changed gates last minute. This experience bad for everyone. Staff rude, not our fault. Staff from Chicago to Wichita excellent!

Related info for your journey

Find useful and relevant information for your journey from Portland to Green Bay. 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 Portland, Maine to Green Bay?

    For as low as $319, United Airlines can have you in Green Bay from Portland, Maine in 7h 05m. The distance between Portland, Maine and Green Bay is about 884 mi. This flight may include one or multiple stops.

  • What is the cheapest airline to fly from Portland, Maine to Green Bay round-trip?

    Currently priced at $258, United Airlines will fly you from Portland, Maine to Green Bay and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. United Airlines is 47% cheaper than the average price of flights available within the next 90 days to this destination.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Portland to Green Bay 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

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Portland to Green Bay

Discover the top airline that operate flights from Portland to Green Bay. 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 August 15, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$258Average$433FlexibilityNo cancel feeOn-time69%

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