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Cheap flights from Portland, Maine to Green Bay from $320

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Portland, Maine to Green Bay departing on 5/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Portland, Maine to Green Bay

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
6:25 pm - 10:40 pm
PWM
-
GRB
5h 15m
1 stop
United Airlines Logo
6:30 am - 2:26 pm
GRB
-
PWM
6h 56m
1 stop
$320United Airlines
Thu, May 21 - Tue, May 26
American Airlines Logo
7:19 pm - 11:53 pm
PWM
-
GRB
5h 34m
1 stop
American Airlines Logo
6:00 am - 5:07 pm
GRB
-
PWM
10h 07m
2 stops
$334American Airlines
Fri, May 22 - Sun, May 24
American Airlines Logo
7:19 pm - 11:53 pm
PWM
-
GRB
5h 34m
1 stop
American Airlines Logo
6:00 am - 11:46 am
GRB
-
PWM
4h 46m
1 stop
$376American Airlines
Thu, May 21 - Tue, May 26
American Airlines Logo
7:19 pm - 11:53 pm
PWM
-
GRB
5h 34m
1 stop
American Airlines Logo
12:15 pm - 11:51 pm
GRB
-
PWM
10h 36m
2 stops
$381American Airlines
Thu, May 21 - Tue, May 26
American Airlines Logo
7:19 pm - 11:53 pm
PWM
-
GRB
5h 34m
1 stop
American Airlines Logo
6:00 am - 11:46 am
GRB
-
PWM
4h 46m
1 stop
$386American Airlines
Fri, May 22 - Sun, May 24
American Airlines Logo
2:24 pm - 11:53 pm
PWM
-
GRB
10h 29m
2 stops
American Airlines Logo
6:00 am - 4:37 pm
GRB
-
PWM
9h 37m
2 stops
$396American Airlines
Fri, May 22 - Sun, May 24
United Airlines Logo
6:00 am - 11:59 am
PWM
-
GRB
6h 59m
1 stop
United Airlines Logo
2:35 pm - 9:41 pm
GRB
-
PWM
6h 06m
1 stop
$403United Airlines
Thu, Jun 25 - Mon, Jun 29
United Airlines Logo
6:00 am - 11:59 am
PWM
-
GRB
6h 59m
1 stop
United Airlines Logo
5:00 am - 1:25 pm
GRB
-
PWM
7h 25m
2 stops
$407United Airlines
Thu, Jun 25 - Mon, Jun 29
United Airlines Logo
4:51 pm - 9:30 pm
PWM
-
GRB
5h 39m
1 stop
United Airlines Logo
2:35 pm - 9:41 pm
GRB
-
PWM
6h 06m
1 stop
$419United Airlines
Wed, Jun 24 - Mon, Jun 29
United Airlines Logo
4:51 pm - 9:30 pm
PWM
-
GRB
5h 39m
1 stop
United Airlines Logo
5:00 am - 1:25 pm
GRB
-
PWM
7h 25m
2 stops
$423United Airlines
Wed, Jun 24 - Mon, Jun 29

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United Airlines flights from Portland, Maine to Green Bay

Our best United Airlines deals on Portland, Maine to Green Bay flight tickets
United Airlines
May 21
PWM6:25 pmPortland
5h 15m
1 stop
GRB10:40 pmGreen Bay Austin-Straubel
May 26
GRB6:30 amGreen Bay Austin-Straubel
6h 56m
1 stop
PWM2:26 pmPortland
$320
United Airlines
Jun 25
PWM6:00 amPortland
6h 59m
1 stop
GRB11:59 amGreen Bay Austin-Straubel
Jun 29
GRB2:35 pmGreen Bay Austin-Straubel
6h 06m
1 stop
PWM9:41 pmPortland
$403
United Airlines
Jun 25
PWM6:00 amPortland
6h 59m
1 stop
GRB11:59 amGreen Bay Austin-Straubel
Jun 29
GRB5:00 amGreen Bay Austin-Straubel
7h 25m
2 stops
PWM1:25 pmPortland
$407

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 22
PWM7:19 pmPortland
5h 34m
1 stop
GRB11:53 pmGreen Bay Austin-Straubel
May 24
GRB6:00 amGreen Bay Austin-Straubel
10h 07m
2 stops
PWM5:07 pmPortland
$334
American Airlines
May 21
PWM7:19 pmPortland
5h 34m
1 stop
GRB11:53 pmGreen Bay Austin-Straubel
May 26
GRB6:00 amGreen Bay Austin-Straubel
4h 46m
1 stop
PWM11:46 amPortland
$376
American Airlines
May 21
PWM7:19 pmPortland
5h 34m
1 stop
GRB11:53 pmGreen Bay Austin-Straubel
May 26
GRB12:15 pmGreen Bay Austin-Straubel
10h 36m
2 stops
PWM11:51 pmPortland
$381

momondo Fare Finder

 
Customize your flight search to find flights from Portland, Maine 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, momondo users made 832,500 searches. Data last updated April 25, 2026.
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

Cheapest round-trip

PortlandGreen Bay

PWM - GRB

PWMGRB

Portland

Thu 5/21

6:25 pm-10:40 pm

1 stop5h 15m

Green Bay Austin-Straubel

Tue 5/26

6:30 am-2:26 pm

1 stop6h 56m

$320

PortlandGreen Bay

PWM - GRB

PWMGRB

Portland

Fri 5/22

7:19 pm-11:53 pm

1 stop5h 34m

Green Bay Austin-Straubel

Sun 5/24

6:00 am-5:07 pm

2 stops10h 07m

$334
Quickest round-trip

PortlandGreen Bay

PWM - GRB

PWMGRB

Portland

Thu 5/21

7:19 pm-11:53 pm

1 stop5h 34m

Green Bay Austin-Straubel

Tue 5/26

6:00 am-11:46 am

1 stop4h 46m

$376

PortlandGreen Bay

PWM - GRB

PWMGRB

Portland

Thu 5/21

7:19 pm-11:53 pm

1 stop5h 34m

Green Bay Austin-Straubel

Tue 5/26

12:15 pm-11:51 pm

2 stops10h 36m

$381

PortlandGreen Bay

PWM - GRB

PWMGRB

Portland

Fri 5/22

7:19 pm-11:53 pm

1 stop5h 34m

Green Bay Austin-Straubel

Sun 5/24

6:00 am-11:46 am

1 stop4h 46m

$386

PortlandGreen Bay

PWM - GRB

PWMGRB

Portland

Fri 5/22

2:24 pm-11:53 pm

2 stops10h 29m

Green Bay Austin-Straubel

Sun 5/24

6:00 am-4:37 pm

2 stops9h 37m

$396

PortlandGreen Bay

PWM - GRB

PWMGRB

Portland

Thu 6/25

6:00 am-11:59 am

1 stop6h 59m

Green Bay Austin-Straubel

Mon 6/29

2:35 pm-9:41 pm

1 stop6h 06m

$403

PortlandGreen Bay

PWM - GRB

PWMGRB

Portland

Thu 6/25

6:00 am-11:59 am

1 stop6h 59m

Green Bay Austin-Straubel

Mon 6/29

5:00 am-1:25 pm

2 stops7h 25m

$407

PortlandGreen Bay

PWM - GRB

PWMGRB

Portland

Wed 6/24

4:51 pm-9:30 pm

1 stop5h 39m

Green Bay Austin-Straubel

Mon 6/29

2:35 pm-9:41 pm

1 stop6h 06m

$419

PortlandGreen Bay

PWM - GRB

PWMGRB

Portland

Wed 6/24

4:51 pm-9:30 pm

1 stop5h 39m

Green Bay Austin-Straubel

Mon 6/29

5:00 am-1:25 pm

2 stops7h 25m

$423

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Green Bay from

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

What is the typical price of a round-trip flight between Portland, Maine and Green Bay?

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 47m

Direct flights

None
The fastest flight from Portland, Maine to Green Bay takes 4h 47m
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

Frequently asked questions about flying from Portland, Maine to Green Bay

  • 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 47m.

  • 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?

  • 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?

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 AirlinesPriceFrom $284Free CancellationRating
7.4
9,650 reviews
Search United Airlines flights

Traveling to a place near Green Bay?

Book flights to Green Bay if you plan to visit one of these locations
Sturgeon Bay
Manitowoc
Marinette
Shawano
De Pere

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Portland to Green Bay. Millions of users trust and use momondo every year so you are in good hands.

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.

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