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Cheap flights from Green Bay to Boston from $438

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Green Bay to Boston departing on 3/3. 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

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Find the cheapest flights from Green Bay to Boston

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
3:05 pm - 9:14 pmGRB-PWM
5h 09m1 stop
United Airlines Logo
6:00 am - 2:03 pmPWM-GRB
9h 03m2 stops
$438United Airlines
Find Deal
Tue, Mar 3 - Sat, Mar 7
United Airlines Logo
10:40 am - 11:20 pmGRB-PWM
11h 40m2 stops
United Airlines Logo
6:00 am - 2:03 pmPWM-GRB
9h 03m2 stops
$443United Airlines
Find Deal
Tue, Mar 3 - Sat, Mar 7
United Airlines Logo
10:40 am - 11:20 pmGRB-PWM
11h 40m2 stops
United Airlines Logo
6:00 am - 3:24 pmPWM-GRB
10h 24m2 stops
$473United Airlines
Find Deal
Tue, Mar 3 - Sat, Mar 7
United Airlines Logo
1:20 pm - 9:50 pmGRB-PWM
7h 30m1 stop
United Airlines Logo
9:54 am - 11:11 amPWM-GRB
26h 17m2 stops
$498United Airlines
Find Deal
Wed, Oct 29 - Sat, Nov 1
United Airlines Logo
1:20 pm - 11:59 pmGRB-PWM
9h 39m2 stops
United Airlines Logo
2:20 pm - 11:11 amPWM-GRB
21h 51m2 stops
$503United Airlines
Find Deal
Wed, Oct 29 - Sat, Nov 1
United Airlines Logo
3:05 pm - 9:14 pmGRB-PWM
5h 09m1 stop
United Airlines Logo
4:25 pm - 6:05 pmPWM-GRB
26h 40m1 stop
$585United Airlines
Find Deal
Tue, Mar 3 - Sat, Mar 7
Delta Logo
5:30 am - 12:22 pmGRB-PWM
5h 52m1 stop
Delta Logo
4:48 pm - 8:37 pmPWM-GRB
4h 49m1 stop
$609Delta
Find Deal
Wed, Oct 29 - Sat, Nov 1

United Airlines flights from Green Bay to Portland, Maine

Our best United Airlines deals on Green Bay to Portland, Maine flight tickets
United Airlines
Mar 3
GRB3:05 pmGreen Bay Austin-Straubel
5h 09m
1 stop
PWM9:14 pmPortland
Mar 7
PWM6:00 amPortland
9h 03m
2 stops
GRB2:03 pmGreen Bay Austin-Straubel
$438
Find similar
United Airlines
Mar 3
GRB10:40 amGreen Bay Austin-Straubel
11h 40m
2 stops
PWM11:20 pmPortland
Mar 7
PWM6:00 amPortland
9h 03m
2 stops
GRB2:03 pmGreen Bay Austin-Straubel
$443
Find similar
United Airlines
Mar 3
GRB10:40 amGreen Bay Austin-Straubel
11h 40m
2 stops
PWM11:20 pmPortland
Mar 7
PWM6:00 amPortland
10h 24m
2 stops
GRB3:24 pmGreen Bay Austin-Straubel
$473
Find similar

American Airlines flights from Green Bay to Portland, Maine

Our best American Airlines deals on Green Bay to Portland, Maine flight tickets
American Airlines
Oct 20
GRB3:02 pmGreen Bay Austin-Straubel
6h 43m
1 stop
PWM10:45 pmPortland
Oct 24
PWM3:28 pmPortland
5h 10m
1 stop
GRB7:38 pmGreen Bay Austin-Straubel
$770
Find similar
American Airlines
Oct 27
GRB6:00 amGreen Bay Austin-Straubel
4h 28m
1 stop
PWM11:28 amPortland
Oct 29
PWM12:11 pmPortland
4h 47m
1 stop
GRB3:58 pmGreen Bay Austin-Straubel
$965
Find similar
American Airlines
Oct 27
GRB3:02 pmGreen Bay Austin-Straubel
6h 43m
1 stop
PWM10:45 pmPortland
Oct 29
PWM12:34 pmPortland
8h 04m
2 stops
GRB7:38 pmGreen Bay Austin-Straubel
$991
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Green Bay to Portland, Maine 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 October 19, 2025.
Use the filters below to find and compare flights from Green Bay to Portland, Maine that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Green BayPortland

GRB - PWM

GRBPWM

Green Bay Austin-Straubel

Tue 3/3

3:05 pm-9:14 pm

1 stop5h 09m

Portland

Sat 3/7

6:00 am-2:03 pm

2 stops9h 03m

$438

Green BayPortland

GRB - PWM

GRBPWM

Green Bay Austin-Straubel

Tue 3/3

10:40 am-11:20 pm

2 stops11h 40m

Portland

Sat 3/7

6:00 am-2:03 pm

2 stops9h 03m

$443

Green BayPortland

GRB - PWM

GRBPWM

Green Bay Austin-Straubel

Tue 3/3

10:40 am-11:20 pm

2 stops11h 40m

Portland

Sat 3/7

6:00 am-3:24 pm

2 stops10h 24m

$473

Green BayPortland

GRB - PWM

GRBPWM

Green Bay Austin-Straubel

Wed 10/29

1:20 pm-9:50 pm

1 stop7h 30m

Portland

Sat 11/1

9:54 am-11:11 am

2 stops26h 17m

$498

Green BayPortland

GRB - PWM

GRBPWM

Green Bay Austin-Straubel

Wed 10/29

1:20 pm-11:59 pm

2 stops9h 39m

Portland

Sat 11/1

2:20 pm-11:11 am

2 stops21h 51m

$503

Green BayPortland

GRB - PWM

GRBPWM

Green Bay Austin-Straubel

Tue 3/3

3:05 pm-9:14 pm

1 stop5h 09m

Portland

Sat 3/7

4:25 pm-6:05 pm

1 stop26h 40m

$585

Green BayPortland

GRB - PWM

GRBPWM

Green Bay Austin-Straubel

Wed 10/29

5:30 am-12:22 pm

1 stop5h 52m

Portland

Sat 11/1

4:48 pm-8:37 pm

1 stop4h 49m

$609

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Boston from

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

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 cheapest day to depart on your flight to Portland, Maine?

On average, the least expensive day to fly to Portland, Maine from Green Bay is on a Saturday. momondo users have found tickets for Saturday departures for as low as $442. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Thursday is the most expensive day to depart from Green Bay because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $633.

What is the cheapest time of day to depart on your flight to Portland, Maine?

In the afternoon is the cheapest time of day to fly from Green Bay to Portland, Maine when you can find flight prices for as low as $476. Flying to Portland, Maine in the afternoon is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the morning because they tend to be around $482. Of course, these prices can vary depending on the time of year and what airport you fly to.

When to book flights from Green Bay to Portland, Maine

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

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

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

Direct flights

None
There are no direct flights from Green Bay to Portland, Maine. There are no popular flight routes from Green Bay to Portland, Maine.
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  • How far is Green Bay Austin-Straubel to Portland by plane?

    The straight-line distance from Green Bay Austin-Straubel to Portland is 881.2 mi. 5h 09m is a normal flight duration for this route.

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

    Prices for flights from Green Bay Austin-Straubel Airport to Portland Airport were last updated today.

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

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Green Bay Austin-Straubel Airport to Portland Airport.

  • What documentation or ID do you need to fly to Portland Airport?

    The travel and health documents required for your trip to Portland Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Portland Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from Green Bay to Portland, Maine?

Best airlines flying from Green Bay to Portland, Maine

Compare and see reviews for airlines that fly from Green Bay to Portland, Maine with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $248Free CancellationRating
7.9
7,976 reviews
Search Delta flights
American AirlinesPriceFrom $259Free CancellationRating
7.2
11,026 reviews
Search American Airlines flights
United AirlinesPriceFrom $318Free CancellationRating
7.4
8,994 reviews
Search United Airlines flights

Traveling to a place near Boston?

Book flights to Boston if you plan to visit one of these locations
North Conway
Boothbay Harbor
Jackson
Conway
Freeport
Lewiston
Brunswick
Bartlett
Gorham
Auburn
Intervale
Windham
Bath
Oxford
Georgetown
Tamworth
Falmouth

Why use momondo?

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

It is quick and easy to find Green Bay to Portland flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Portland that suits you.

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

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

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

momondo provides multiple filters to help you find the best flight to Portland from Green Bay. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

If you are simply researching potential flights to Portland, momondo offers a useful price alert feature which will track prices for flights to Portland from Green Bay and alert you when they change.

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