What airlines fly to Green Bay?

American Airlines, Delta and United Airlines are the top three most popular airlines that fly to Green Bay from Portland, Maine according to our data. American Airlines is the first choice among our users, with 44% of people opting to fly with this airline when traveling to Green Bay. Keep in mind that there are 3 different airlines that fly to Green Bay on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Portland Airport to Green Bay Austin-Straubel Airport?

Prices for flights from Portland Airport to Green Bay Austin-Straubel Airport refresh daily.

How many operators does momondo search for flights from Portland Airport to Green Bay Austin-Straubel Airport?

As of December 2025, there is 1 operator available to choose from for flights from Portland Airport to Green Bay Austin-Straubel Airport.

How old do you have to be to fly from Portland Airport to Green Bay Austin-Straubel Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portland Airport to Green Bay Austin-Straubel Airport.

What documentation or ID do you need to fly to Green Bay Austin-Straubel Airport?

The required travel and health documents for your Green Bay Austin-Straubel Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Green Bay Austin-Straubel Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$281 Cheap Flights from Portland to Green Bay in 2025/26

1 adult

0 bags

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Find the cheapest flights from Portland, Maine to Green Bay

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

4:10 pm - 9:31 pm

PWM

GRB

6h 21m1 stop

10:42 am - 11:30 pm

GRB

PWM

11h 48m2 stops

$344United Airlines

Sat, Jan 17 - Wed, Jan 21

6:00 am - 3:07 pm

PWM

GRB

10h 07m2 stops

10:42 am - 11:30 pm

GRB

PWM

11h 48m2 stops

$349United Airlines

Sat, Jan 17 - Wed, Jan 21

4:10 pm - 9:31 pm

PWM

GRB

6h 21m1 stop

8:00 am - 2:39 pm

GRB

PWM

5h 39m1 stop

$396United Airlines

Sat, Jan 17 - Wed, Jan 21

5:30 pm - 10:45 am

PWM

GRB

18h 15m1 stop

11:30 am - 4:55 pm

GRB

PWM

4h 25m1 stop

$424American Airlines

Thu, May 14 - Sat, May 16

5:30 pm - 10:45 am

PWM

GRB

18h 15m1 stop

11:30 am - 4:55 pm

GRB

PWM

4h 25m1 stop

$450American Airlines

Thu, May 14 - Sat, May 16

5:30 pm - 10:45 am

PWM

GRB

18h 15m1 stop

11:30 am - 10:25 pm

GRB

PWM

9h 55m2 stops

$455American Airlines

Thu, May 14 - Sat, May 16

1:15 pm - 11:06 pm

PWM

GRB

10h 51m2 stops

11:30 am - 10:25 pm

GRB

PWM

9h 55m2 stops

$585American Airlines

Thu, May 14 - Sat, May 16

United Airlines flights from Portland, Maine to Green Bay

Our best United Airlines deals on Portland, Maine to Green Bay flight tickets

United Airlines

Jan 17

PWM4:10 pmPortland

6h 21m

1 stop

GRB9:31 pmGreen Bay Austin-Straubel

Jan 21

GRB10:42 amGreen Bay Austin-Straubel

11h 48m

2 stops

PWM11:30 pmPortland

$344

Find similar

United Airlines

Jan 17

PWM6:00 amPortland

10h 07m

2 stops

GRB3:07 pmGreen Bay Austin-Straubel

Jan 21

GRB10:42 amGreen Bay Austin-Straubel

11h 48m

2 stops

PWM11:30 pmPortland

$349

Find similar

United Airlines

Jan 17

PWM4:10 pmPortland

6h 21m

1 stop

GRB9:31 pmGreen Bay Austin-Straubel

Jan 21

GRB8:00 amGreen Bay Austin-Straubel

5h 39m

1 stop

PWM2:39 pmPortland

$396

Find similar

American Airlines flights from Portland, Maine to Green Bay

Our best American Airlines deals on Portland, Maine to Green Bay flight tickets

American Airlines

May 14

PWM5:30 pmPortland

18h 15m

1 stop

GRB10:45 amGreen Bay Austin-Straubel

May 16

GRB11:30 amGreen Bay Austin-Straubel

4h 25m

1 stop

PWM4:55 pmPortland

$424

Find similar

American Airlines

Dec 28

PWM5:20 pmPortland

7h 16m

2 stops

GRB11:36 pmGreen Bay Austin-Straubel

Jan 3

GRB7:00 amGreen Bay Austin-Straubel

8h 36m

2 stops

PWM4:36 pmPortland

$437

Find similar

American Airlines

May 14

PWM5:30 pmPortland

18h 15m

1 stop

GRB10:45 amGreen Bay Austin-Straubel

May 16

GRB11:30 amGreen Bay Austin-Straubel

4h 25m

1 stop

PWM4:55 pmPortland

$450

Find similar

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

PortlandGreen Bay

PWM - GRB

PWMGRB

Portland

Sat 1/17

4:10 pm-9:31 pm

1 stop6h 21m

Green Bay Austin-Straubel

Wed 1/21

10:42 am-11:30 pm

2 stops11h 48m

$344

PortlandGreen Bay

PWM - GRB

PWMGRB

Portland

Sat 1/17

6:00 am-3:07 pm

2 stops10h 07m

Green Bay Austin-Straubel

Wed 1/21

10:42 am-11:30 pm

2 stops11h 48m

$349

PortlandGreen Bay

PWM - GRB

PWMGRB

Portland

Sat 1/17

4:10 pm-9:31 pm

1 stop6h 21m

Green Bay Austin-Straubel

Wed 1/21

8:00 am-2:39 pm

1 stop5h 39m

$396

PortlandGreen Bay

PWM - GRB

PWMGRB

Portland

Thu 5/14

5:30 pm-10:45 am

1 stop18h 15m

Green Bay Austin-Straubel

Sat 5/16

11:30 am-4:55 pm

1 stop4h 25m

$424

PortlandGreen Bay

PWM - GRB

PWMGRB

Portland

Thu 5/14

5:30 pm-10:45 am

1 stop18h 15m

Green Bay Austin-Straubel

Sat 5/16

11:30 am-4:55 pm

1 stop4h 25m

$450

PortlandGreen Bay

PWM - GRB

PWMGRB

Portland

Thu 5/14

5:30 pm-10:45 am

1 stop18h 15m

Green Bay Austin-Straubel

Sat 5/16

11:30 am-10:25 pm

2 stops9h 55m

$455

PortlandGreen Bay

PWM - GRB

PWMGRB

Portland

Thu 5/14

1:15 pm-11:06 pm

2 stops10h 51m

Green Bay Austin-Straubel

Sat 5/16

11:30 am-10:25 pm

2 stops9h 55m

$585

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

How to get the cheapest flight ticket from Portland, Maine to Green Bay

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest day to depart on your flight to Green Bay?

The cheapest day to depart from Portland, Maine to Green Bay is on a Wednesday when prices can be found for as low as $342. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from Portland, Maine to Green Bay for around $802.

What is the cheapest time of day to depart on your flight to Green Bay?

Our most recent data shows that the best time of day to fly to Green Bay is in the morning. Flights from Portland, Maine to Green Bay during this time can be as low as $496. In the afternoon is when there is more demand to fly to Green Bay, so prices are often more expensive at around $1,044 per ticket.

When to book flights from Portland, Maine to Green Bay

Are you open to changing your travel dates? Check out the ideal times to fly from Portland, Maine to Green Bay according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Portland, Maine to Green Bay (PWM to GRB) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland, Maine to Green Bay

Fastest flight time	4h 43m
Direct flights	None

The fastest flight from Portland, Maine to Green Bay takes 4h 43m

There are no direct flights from Portland, Maine to Green Bay. There are no popular flight routes from Portland, Maine to Green Bay.

Search flight deals

How far is Portland to Green Bay Austin-Straubel by plane?
A flight from Portland to Green Bay Austin-Straubel will travel around 881.2 mi. By plane, this route typically takes 4h 43m.
When did momondo last update prices for flights from Portland Airport to Green Bay Austin-Straubel Airport?
Prices for flights from Portland Airport to Green Bay Austin-Straubel Airport refresh daily.
How many operators does momondo search for flights from Portland Airport to Green Bay Austin-Straubel Airport?
As of December 2025, there is 1 operator available to choose from for flights from Portland Airport to Green Bay Austin-Straubel Airport.
How old do you have to be to fly from Portland Airport to Green Bay Austin-Straubel Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portland Airport to Green Bay Austin-Straubel Airport.
What documentation or ID do you need to fly to Green Bay Austin-Straubel Airport?
The required travel and health documents for your Green Bay Austin-Straubel Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Green Bay Austin-Straubel Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from Portland, Maine to Green Bay?
momondo data reveals that the most frequently booked airline on the route from Portland, Maine to Green Bay is United Airlines, representing 100% of all bookings.

Best airlines flying from Portland, Maine to Green Bay

Compare and see reviews for airlines that fly from Portland, Maine to Green Bay with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $258	Free Cancellation	Rating 7.4 9,116 reviews		Search United Airlines flights

Sturgeon Bay

Manitowoc

Marinette

Shawano

De Pere

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Why should I use momondo to find a flight deal from Portland to Green Bay?

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Can I find flights from Portland to Green Bay with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Green Bay from Portland with this policy.

How can momondo help me find flights from Portland to Green Bay?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Portland to Green Bay.

I’m not ready to book a flight from Portland to Green Bay right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Green Bay from Portland. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.