HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Portland

$269+ 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 7/12. Fares are subject to change and may not be available on all flights or dates of travel.
GRB — PWM
Mar 20 — Mar 271
Fri 3/20
Fri 3/27
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Green Bay to Portland with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 February 18, 2026.

This United Airlines deal was found by Cheapflights users on 2/15. 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 6/251:11 pm
GRB
-
PWM
2 stops9h 39m
United Airlines
Tue 6/304:58 pm
PWM
-
GRB
1 stop5h 29m
United Airlines
Deal found 2/15$297
This United Airlines deal was found by Cheapflights users on 2/15. 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 3/33:05 pm
GRB
-
PWM
1 stop5h 04m
United Airlines
Sun 3/85:45 am
PWM
-
GRB
1 stop5h 14m
United Airlines
Deal found 2/15$344
This American Airlines deal was found by Cheapflights users on 2/16. 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 3/265:00 am
GRB
-
PWM
1 stop17h 34m
American Airlines
Sun 3/296:03 am
PWM
-
GRB
1 stop4h 53m
American Airlines
Deal found 2/16$387
This United Airlines deal was found by Cheapflights users on 2/16. 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 3/410:33 am
GRB
-
PWM
2 stops11h 47m
United Airlines
Tue 3/1011:30 am
PWM
-
GRB
2 stops10h 55m
United Airlines
Deal found 2/16$411

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 February 18, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$297
(United Airlines)

One-way from

$269
(American Airlines)

Popular in

January

Cheapest in

August

Average price

$269
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
Search Deals
Highest demand for flights based on searches. 29% potential increase in price ($198 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($22 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 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 February 18, 2026.
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

Thu 6/25

1:11 pm-11:50 pm

2 stops9h 39m

Portland

Tue 6/30

4:58 pm-9:27 pm

1 stop5h 29m

$297

Green BayPortland

GRB - PWM

GRBPWM

Green Bay Austin-Straubel

Tue 3/3

3:05 pm-9:09 pm

1 stop5h 04m

Portland

Sun 3/8

5:45 am-9:59 am

1 stop5h 14m

$344

Green BayPortland

GRB - PWM

GRBPWM

Green Bay Austin-Straubel

Wed 3/4

8:00 am-3:14 pm

1 stop6h 14m

Portland

Tue 3/10

4:23 pm-9:25 pm

1 stop6h 02m

$344

Green BayPortland

GRB - PWM

GRBPWM

Green Bay Austin-Straubel

Thu 3/26

5:00 am-11:34 pm

1 stop17h 34m

Portland

Sun 3/29

6:03 am-9:56 am

1 stop4h 53m

$387

Green BayPortland

GRB - PWM

GRBPWM

Green Bay Austin-Straubel

Sun 7/12

2:59 pm-10:41 pm

1 stop6h 42m

$269

Green BayPortland

GRB - PWM

GRBPWM

Green Bay Austin-Straubel

Sat 7/11

1:11 pm-9:58 pm

1 stop7h 47m

$284

Green BayPortland

GRB - PWM

GRBPWM

Green Bay Austin-Straubel

Mon 3/9

6:38 pm-5:07 pm

1 stop21h 29m

$284

Green BayPortland

GRB - PWM

GRBPWM

Green Bay Austin-Straubel

Mon 3/9

8:00 am-7:13 pm

2 stops10h 13m

$299

Green BayPortland

GRB - PWM

GRBPWM

Green Bay Austin-Straubel

Mon 7/13

6:08 am-11:40 am

1 stop4h 32m

$390

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/14

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 February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust 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

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

Currently, November is the cheapest month in which you can book a flight from Green Bay to Portland, Maine (average of $174). Flying from Green Bay to Portland, Maine in July is currently the most expensive (average of $282). 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 February 18, 2026.
Read reviews from past customers who have flown 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.
United Airlines
7.4
Good
9,312 reviews

Boarding

7.7

Food

6.6

Crew

8.1

Entertainment

7.1

Overall

7.4

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,312 reviews
United Airlines
7.4
Good
9,312 reviews

Boarding

7.7

Food

6.6

Crew

8.1

Entertainment

7.1

Overall

7.4

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
American Airlines
7.2
Good
11,304 reviews
United Airlines
7.4
Good
9,312 reviews

Boarding

7.7

Food

6.6

Crew

8.1

Entertainment

7.1

Overall

7.4

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

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 9h 39m. 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 American Airlines. Our recent data shows that you can find tickets from as low as $259 on this airline. An additional option worth looking into is United Airlines, starting at $318. 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.

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

    Currently, November is the cheapest month in which you can book a flight from Green Bay to Portland, Maine (average of $174). Flying from Green Bay to Portland, Maine in July is currently the most expensive (average of $282). 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
North Conway
Brunswick
Auburn
Conway

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 February 18, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$259Average$586FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$318Average$466FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.