$266+ Cheap flights from Green Bay to Portland, ME (GRB - PWM)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/21. Fares are subject to change and may not be available on all flights or dates of travel.
GRB — PWM
Oct 8 — Oct 151
Round-trip
1 adult, Economy
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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
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Best
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Cheapest flights from Green Bay to PortlandExplore 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 September 8, 2026.
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 September 8, 2026.
This United Airlines deal was found by Cheapflights users on 9/4. 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 10/171:17 pm -
1 stop7h 29m
Wed 10/216:00 am -
1 stop7h 30m
Deal found 9/4![United Airlines logo]()
$319
This American Airlines deal was found by Cheapflights users on 9/4. 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 10/172:46 pm -
1 stop7h 57m
Wed 10/215:37 pm -
2 stops7h 35m
Deal found 9/4![American Airlines logo]()
$324
This United Airlines deal was found by Cheapflights users on 9/7. 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 10/173:45 pm -
1 stop5h 01m
Sat 10/245:08 pm -
1 stop7h 09m
Deal found 9/7![United Airlines logo]()
$339
This American Airlines deal was found by Cheapflights users on 9/4. 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 10/162:46 pm -
2 stops7h 50m
Wed 10/215:45 pm -
1 stop7h 27m
Deal found 9/4![American Airlines logo]()
$381
This United Airlines deal was found by Cheapflights users on 9/6. 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 10/103:45 pm -
2 stops7h 14m
Thu 10/155:08 pm -
1 stop7h 11m
Deal found 9/6![United Airlines logo]()
$382
This American Airlines deal was found by Cheapflights users on 9/6. 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 10/102:46 pm -
2 stops7h 50m
Thu 10/155:37 pm -
2 stops7h 35m
Deal found 9/6![American Airlines logo]()
$406
This Delta deal was found by Cheapflights users on 9/8. 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.
Fri 9/115:30 am -
1 stop6h 34m
Wed 9/1612:55 pm -
2 stops10h 29m
Deal found 9/8![Delta logo]()
$449
This American Airlines deal was found by Cheapflights users on 9/4. 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 9/114:04 pm -
1 stop6h 43m
Wed 9/165:38 pm -
1 stop7h 35m
Deal found 9/4![American Airlines logo]()
$454
This Delta deal was found by Cheapflights users on 9/4. 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.
Fri 9/115:30 am -
1 stop6h 34m
Tue 9/151:59 pm -
2 stops9h 25m
Deal found 9/4![Delta logo]()
$455
Best flights from Green Bay to PortlandDiscover carefully curated flight deals from Green Bay to Portland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 8, 2026.
Discover carefully curated flight deals from Green Bay to Portland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 8, 2026.
This United Airlines deal was found by Cheapflights users on 9/7. 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 10/1710:33 am -
1 stop7h 10m
Sat 10/245:08 pm -
1 stop7h 09m
Deal found 9/7![United Airlines logo]()
$339
This American Airlines deal was found by Cheapflights users on 9/6. 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 10/102:46 pm -
2 stops7h 50m
Thu 10/155:37 pm -
2 stops7h 35m
Deal found 9/6![American Airlines logo]()
$406
This United Airlines deal was found by Cheapflights users on 9/6. 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 10/103:45 pm -
2 stops7h 14m
Thu 10/155:08 pm -
1 stop7h 11m
Deal found 9/6![United Airlines logo]()
$382
This United Airlines deal was found by Cheapflights users on 9/6. 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 1/266:15 am -
1 stop7h 27m
Sat 1/303:15 pm -
2 stops8h 35m
Deal found 9/6![United Airlines logo]()
$424
Last-minute flights from Green Bay to PortlandDiscover last-minute flight deals from Green Bay to Portland. Data last updated September 8, 2026 and is based on user searches.
Discover last-minute flight deals from Green Bay to Portland. Data last updated September 8, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 9/7. 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.
Fri 9/116:25 am -
1 stop7h 09m
Tue 9/155:15 am -
2 stops9h 50m
Deal found 9/7![United Airlines logo]()
$449
This American Airlines deal was found by Cheapflights users on 9/4. 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 9/114:04 pm -
1 stop6h 43m
Wed 9/165:38 pm -
1 stop7h 35m
Deal found 9/4![American Airlines logo]()
$454
This Delta deal was found by Cheapflights users on 9/4. 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.
Fri 9/115:30 am -
1 stop6h 34m
Tue 9/151:59 pm -
2 stops9h 25m
Deal found 9/4![Delta logo]()
$455
This United Airlines deal was found by Cheapflights users on 9/6. 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 10/103:45 pm -
2 stops7h 14m
Thu 10/155:08 pm -
1 stop7h 11m
Deal found 9/6![United Airlines logo]()
$382
This American Airlines deal was found by Cheapflights users on 9/6. 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 10/102:46 pm -
2 stops7h 50m
Thu 10/155:37 pm -
2 stops7h 35m
Deal found 9/6![American Airlines logo]()
$406
This American Airlines deal was found by Cheapflights users on 9/4. 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 10/162:46 pm -
2 stops7h 50m
Wed 10/215:45 pm -
1 stop7h 27m
Deal found 9/4![American Airlines logo]()
$381
This United Airlines deal was found by Cheapflights users on 9/4. 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 10/171:17 pm -
1 stop7h 29m
Wed 10/216:00 am -
1 stop7h 30m
Deal found 9/4![United Airlines logo]()
$319
This American Airlines deal was found by Cheapflights users on 9/4. 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 10/172:46 pm -
1 stop7h 57m
Wed 10/215:37 pm -
2 stops7h 35m
Deal found 9/4![American Airlines logo]()
$324
This United Airlines deal was found by Cheapflights users on 9/7. 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 10/1710:33 am -
1 stop7h 10m
Sat 10/245:08 pm -
1 stop7h 09m
Deal found 9/7![United Airlines logo]()
$339
One-way flights from Green Bay to PortlandSearch for one-way flight options from Green Bay to Portland. Find affordable one-way fares based on user searches. Data last updated September 8, 2026.
Search for one-way flight options from Green Bay to Portland. Find affordable one-way fares based on user searches. Data last updated September 8, 2026.
This United Airlines deal was found by Cheapflights users on 9/3. 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 10/216:20 am -
1 stop7h 18m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![United Airlines logo]()
$266
This American Airlines deal was found by Cheapflights users on 9/3. 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.
Wed 10/212:46 pm -
2 stops8h 13m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![American Airlines logo]()
$271
This United Airlines deal was found by Cheapflights users on 9/3. 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.
Fri 10/231:17 pm -
1 stop7h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![United Airlines logo]()
$274
This Delta deal was found by Cheapflights users on 9/5. 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.
Sat 10/247:00 am -
1 stop4h 22m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Delta logo]()
$276
This American Airlines deal was found by Cheapflights users on 9/3. 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 10/232:46 pm -
2 stops7h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![American Airlines logo]()
$279
This deal was found by Cheapflights users on 9/3. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1810:31 am -
1 stop6h 23m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![United Airlines logo]()
$319
This American Airlines deal was found by Cheapflights users on 9/5. 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 10/226:00 am -
2 stops9h 09m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![American Airlines logo]()
$355
This United Airlines deal was found by Cheapflights users on 9/3. 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.
Mon 10/265:55 pm -
3 stops19h 32m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![United Airlines logo]()
$457
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 September 8, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $319 (United Airlines) |
One-way from | $266 (United Airlines) |
Popular in | July |
Cheapest in | May |
Average price | $613 |
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 7,457,451 searches. Data last updated September 8, 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
Cheapest round-trip
Green BayPortland
GRB Green Bay Austin-Straubel - PWM Portland
GRBPWM
Green Bay Austin-Straubel
Wed 10/21
2:46 pm-11:59 pm
2 stops8h 13m
Portland
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$271
Green BayPortland
GRB Green Bay Austin-Straubel - PWM Portland
GRBPWM
Green Bay Austin-Straubel
Fri 10/23
1:17 pm-9:46 pm
1 stop7h 29m
Portland
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$274
Green BayPortland
GRB Green Bay Austin-Straubel - PWM Portland
GRBPWM
Green Bay Austin-Straubel
Fri 10/23
2:46 pm-11:40 pm
1 stop7h 54m
Portland
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$274
Green BayPortland
GRB Green Bay Austin-Straubel - PWM Portland
GRBPWM
Green Bay Austin-Straubel
Mon 10/26
10:08 am-5:04 pm
1 stop5h 56m
Portland
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$274
Quickest round-trip
Green BayPortland
GRB Green Bay Austin-Straubel - PWM Portland
GRBPWM
Green Bay Austin-Straubel
Sat 10/24
7:00 am-12:22 pm
1 stop4h 22m
Portland
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$276
Green BayPortland
GRB Green Bay Austin-Straubel - PWM Portland
GRBPWM
Green Bay Austin-Straubel
Thu 10/22
2:46 pm-11:43 pm
1 stop7h 57m
Portland
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$279
Green BayPortland
GRB Green Bay Austin-Straubel - PWM Portland
GRBPWM
Green Bay Austin-Straubel
Sat 10/17
10:33 am-6:43 pm
1 stop7h 10m
Portland
Sat 10/24
5:08 pm-11:17 pm
1 stop7h 09m
$339
Green BayPortland
GRB Green Bay Austin-Straubel - PWM Portland
GRBPWM
Green Bay Austin-Straubel
Sat 10/10
3:45 pm-11:59 pm
2 stops7h 14m
Portland
Thu 10/15
5:08 pm-11:19 pm
1 stop7h 11m
$382
Green BayPortland
GRB Green Bay Austin-Straubel - PWM Portland
GRBPWM
Green Bay Austin-Straubel
Sat 10/10
2:46 pm-11:36 pm
2 stops7h 50m
Portland
Thu 10/15
5:37 pm-12:12 am
2 stops7h 35m
$406
Green BayPortland
GRB Green Bay Austin-Straubel - PWM Portland
GRBPWM
Green Bay Austin-Straubel
Tue 1/26
6:15 am-2:42 pm
1 stop7h 27m
Portland
Sat 1/30
3:15 pm-10:50 pm
2 stops8h 35m
$424
Showing 1-10 of 11 resultsSorted 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 September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- 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.
GRB-PWM
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 September 8, 2026.
Read reviews from past customers who have flown Delta,United Airlines, andAmerican 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.
Crew
8.5
Boarding
8.1
Comfort
7.8
Entertainment
7.8
Food
7.2
Overall
7.8
Reviews
1 / 20
8.0
ExcellentJorge,Aug 2026
TPA - ATL
Crew
8.5
Boarding
8.1
Comfort
7.8
Entertainment
7.8
Food
7.2
Overall
7.8
Reviews
1 / 20
8.0
ExcellentJorge,Aug 2026
TPA - ATL
Crew
8.5
Boarding
8.1
Comfort
7.8
Entertainment
7.8
Food
7.2
Overall
7.8
Reviews
1 / 20
8.0
ExcellentJorge,Aug 2026
TPA - ATL
Crew
8.5
Boarding
8.1
Comfort
7.8
Entertainment
7.8
Food
7.2
Overall
7.8
Reviews
1 / 20
8.0
ExcellentJorge,Aug 2026
TPA - ATL
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.
Traveling to a place near Portland?
Book flights to Portland if you plan to visit one of these locationsNorth Conway
Lewiston
Brunswick
Conway
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Green Bay and Portland flights
Browse other Green Bay and Portland flight options. Last updated on September 8, 2026.
Other flights from Green Bay
Browse through other flights departing from Green Bay. Flights are based on user searches made on Cheapflights and were last updated on September 8, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to Portland
Explore flights to Portland departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 8, 2026.
Top 3 airlines flying from Green Bay to Portland
Discover the top 3 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 7,457,451 searches. Data last updated September 8, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$256 | Average$556 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$314 | Average$586 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$326 | Average$427 | FlexibilityNo cancel fee | On-time69% |