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$300+ 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 7/26. Fares are subject to change and may not be available on all flights or dates of travel.
GRB — PWM
Jul 11 — Jul 181
Sat 7/11
Sat 7/18
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 June 11, 2026.

This United Airlines deal was found by Cheapflights users on 6/7. 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 11/103:44 pm
GRB
-
PWM
1 stop4h 43m
United Airlines
Sat 11/144:48 pm
PWM
-
GRB
1 stop7h 01m
United Airlines
Deal found 6/7$311
This American Airlines deal was found by Cheapflights users on 6/7. 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 10/172:49 pm
GRB
-
PWM
2 stops7h 48m
American Airlines
Sat 10/2412:36 pm
PWM
-
GRB
2 stops11h 34m
American Airlines
Deal found 6/7$321
This Delta deal was found by Cheapflights users on 6/7. 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.
Mon 11/97:00 am
GRB
-
PWM
1 stop3h 53m
Delta
Sat 11/144:50 pm
PWM
-
GRB
1 stop4h 47m
Delta
Deal found 6/7$340
This United Airlines deal was found by Cheapflights users on 6/7. 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 10/173:42 pm
GRB
-
PWM
1 stop5h 04m
United Airlines
Sat 10/245:08 pm
PWM
-
GRB
1 stop7h 11m
United Airlines
Deal found 6/7$362
This American Airlines deal was found by Cheapflights users on 6/9. 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 7/21:01 pm
GRB
-
PWM
1 stop5h 06m
American Airlines
Wed 7/87:39 pm
PWM
-
GRB
1 stop5h 33m
American Airlines
Deal found 6/9$393
This Delta deal was found by Cheapflights users on 6/7. 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 11/117:00 am
GRB
-
PWM
2 stops8h 59m
Delta
Sun 11/1512:50 pm
PWM
-
GRB
2 stops10h 55m
Delta
Deal found 6/7$395
This United Airlines deal was found by Cheapflights users on 6/7. 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 8/296:25 am
GRB
-
PWM
2 stops11h 52m
United Airlines
Tue 9/16:00 am
PWM
-
GRB
1 stop7h 05m
United Airlines
Deal found 6/7$396
This American Airlines deal was found by Cheapflights users on 6/9. 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.
Fri 7/31:01 pm
GRB
-
PWM
2 stops8h 32m
American Airlines
Fri 7/107:24 pm
PWM
-
GRB
1 stop5h 48m
American Airlines
Deal found 6/9$398

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 June 11, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$311
(Delta)

One-way from

$300
(Delta)
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
One-way flight from Green Bay Austin-Straubel to Portland
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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 June 11, 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

Sat 8/29

6:25 am-7:17 pm

2 stops11h 52m

Portland

Tue 9/1

6:00 am-12:05 pm

1 stop7h 05m

$396

Green BayPortland

GRB - PWM

GRBPWM

Green Bay Austin-Straubel

Sat 7/11

10:37 am-11:51 pm

2 stops12h 14m

Portland

Sat 7/18

6:00 am-11:19 pm

2 stops18h 19m

$585

Green BayPortland

GRB - PWM

GRBPWM

Green Bay Austin-Straubel

Sat 7/11

6:08 am-9:46 pm

2 stops14h 38m

Portland

Sat 7/18

1:06 pm-12:12 am

2 stops12h 06m

$591
Quickest round-trip

Green BayPortland

GRB - PWM

GRBPWM

Green Bay Austin-Straubel

Sat 8/1

10:37 am-11:51 pm

2 stops12h 14m

Portland

Sat 8/8

6:00 am-10:01 am

1 stop5h 01m

$600

Green BayPortland

GRB - PWM

GRBPWM

Green Bay Austin-Straubel

Fri 8/21

12:26 pm-11:59 pm

2 stops10h 33m

Portland

Sun 8/23

6:00 am-6:25 pm

2 stops13h 25m

$636

Green BayPortland

GRB - PWM

GRBPWM

Green Bay Austin-Straubel

Fri 7/24

6:08 am-12:43 am

1 stop17h 35m

Portland

Mon 7/27

6:00 am-12:12 am

1 stop19h 12m

$639
Cheapest one-way
Quickest one-way

Green BayPortland

GRB - PWM

GRBPWM

Green Bay Austin-Straubel

Sun 7/26

6:50 am-11:55 am

1 stop4h 05m

$300

Green BayPortland

GRB - PWM

GRBPWM

Green Bay Austin-Straubel

Sun 7/26

9:00 am-7:27 pm

2 stops9h 27m

$469

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/7

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 June.
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.

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 June 11, 2026.
Read reviews from past customers who have flown Delta and United 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
8,399 reviews

Boarding

8.1

Overall

7.9

Crew

8.5

Food

7.2

Comfort

7.8

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
Delta
7.9
Good
8,399 reviews
Delta
7.9
Good
8,399 reviews

Boarding

8.1

Overall

7.9

Crew

8.5

Food

7.2

Comfort

7.8

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
United Airlines
7.4
Good
9,804 reviews
Delta
7.9
Good
8,399 reviews

Boarding

8.1

Overall

7.9

Crew

8.5

Food

7.2

Comfort

7.8

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

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 11h 52m. 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. An additional option worth looking into is United Airlines, starting at $326.

  • 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 2 airlines flying from Green Bay to Portland

Discover the top 2 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 June 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$248Average$518FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$326Average$427FlexibilityNo cancel feeOn-time69%

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