$289+ Cheap flights from Greenville to Portland, ME (GSP - 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 1/24. Fares are subject to change and may not be available on all flights or dates of travel.
GSP — PWM
Dec 20 — Dec 271
1 adult, Economy
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Find cheap flights from Greenville 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.Cheapflights Tip: The best prices from Greenville to Portland are usually found in September or October, booked 73 days in advance, depart on a Saturday or Tuesday and return on a Tuesday
Find flight deals from Greenville to Portland
Cheapest flights from Greenville to PortlandExplore the most affordable flight options available from Greenville to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 20, 2025.
Explore the most affordable flight options available from Greenville to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 20, 2025.
This Southwest deal was found by Cheapflights users on 11/18. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/104:45 pmGSP - PWM
1 stop5h 30mSouthwest
Thu 12/115:30 amPWM - GSP
1 stop4h 30mSouthwest
Deal found 11/18![Southwest logo]()
$329
This Delta deal was found by Cheapflights users on 11/18. 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.
Wed 12/105:35 amGSP - PWM
2 stops8h 19mDelta
Thu 12/114:53 pmPWM - GSP
1 stop4h 49mDelta
Deal found 11/18![Delta logo]()
$334
This Kiwi.com deal was found by Cheapflights users on 11/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/42:06 pmGSP - PWM
2 stops20h 35mBreeze Airways
Mon 12/89:46 amPWM - GSP
1 stop9h 37mBreeze Airways
Deal found 11/19![Breeze Airways logo]()
$368
This American Airlines deal was found by Cheapflights users on 11/18. 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 12/108:30 amGSP - PWM
2 stops7h 58mAmerican Airlines
Thu 12/115:17 pmPWM - GSP
2 stops6h 40mAmerican Airlines
Deal found 11/18![American Airlines logo]()
$372
This Kiwi.com deal was found by Cheapflights users on 11/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2010:33 amGSP - PWM
1 stop3h 57mBreeze Airways
Mon 11/249:46 amPWM - GSP
1 stop9h 37mBreeze Airways
Deal found 11/19![Breeze Airways logo]()
$394
This American Airlines deal was found by Cheapflights users on 11/19. 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 12/127:39 pmGSP - PWM
1 stop3h 58mAmerican Airlines
Mon 1/55:20 pmPWM - GSP
1 stop5h 15mAmerican Airlines
Deal found 11/19![American Airlines logo]()
$397
This American Airlines deal was found by Cheapflights users on 11/19. 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 12/247:37 amGSP - PWM
1 stop9h 02mAmerican Airlines
Sat 1/35:45 amPWM - GSP
1 stop5h 02mAmerican Airlines
Deal found 11/19![American Airlines logo]()
$398
This American Airlines deal was found by Cheapflights users on 11/19. 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 12/248:00 amGSP - PWM
2 stops10h 11mAmerican Airlines
Mon 1/55:20 pmPWM - GSP
1 stop5h 15mAmerican Airlines
Deal found 11/19![American Airlines logo]()
$402
This American Airlines deal was found by Cheapflights users on 11/19. 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 12/410:38 amGSP - PWM
1 stop12h 59mAmerican Airlines
Mon 12/85:46 amPWM - GSP
1 stop16h 43mAmerican Airlines
Deal found 11/19![American Airlines logo]()
$427
Cheap flight deals from Greenville to Portland
Discover tips and strategies to find the most affordable flight options for your journey from Greenville (GSP) 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 November 20, 2025.
Most accurate provider | eDreams 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $289 (Delta) |
Popular in | November |
Cheapest in | September |
Average price | $493 |
Cheapflights Fare Finder
Customize your flight search to find flights from Greenville 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 November 20, 2025.
Use the filters below to find and compare flights from Greenville to Portland that are best for you.
Fly from
Greenville
Fly to
Portland
Route
Depart
Return
Price
GreenvillePortland
GSP - PWM
GSPPWM
Greenville
Sat 1/24
7:10 am-12:30 pm
1 stop5h 20m
Portland
Wed 1/28
6:00 am-10:50 am
1 stop4h 50m
$289
GreenvillePortland
GSP - PWM
GSPPWM
Greenville
Wed 12/10
4:45 pm-10:15 pm
1 stop5h 30m
Portland
Thu 12/11
5:30 am-10:00 am
1 stop4h 30m
$329
GreenvillePortland
GSP - PWM
GSPPWM
Greenville
Thu 1/22
3:05 pm-10:27 pm
1 stop7h 22m
Portland
Sun 1/25
5:57 pm-10:44 pm
1 stop4h 47m
$338
GreenvillePortland
GSP - PWM
GSPPWM
Greenville
Thu 1/22
1:45 pm-11:43 pm
2 stops9h 58m
Portland
Sun 1/25
5:20 am-1:17 pm
2 stops7h 57m
$348
Compare providers for flights from Greenville 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 Greenville to Portland in November.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Greenville-Portland, Maine flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Greenville-Portland, Maine flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Greenville-Portland, Maine flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Greenville-Portland, Maine flights, Cheapflights users trust eDreams the most. eDreams 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 Greenville-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 Greenville to Portland
Have a flexible travel schedule? Discover the best time to fly to Portland from Greenville 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 Greenville to Portland
How far ahead should I book a flight from Greenville to Portland, Maine?
Use this chart to determine the optimal time to book a round-trip flight from Greenville to Portland. Price data was last updated on November 14, 2025.
The best time to book flights from Greenville to Portland, Maine is 72 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from Greenville to Portland, Maine?
Currently, July is the cheapest month in which you can book a flight from Greenville to Portland, Maine (average of $63). Flying from Greenville to Portland, Maine in October is currently the most expensive (average of $95). 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.
What is the cheapest time of day to fly from GSP to PWM?
Find hourly flight availability from Greenville to Portland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 20, 2025.
One of the essential ways to save on airfare from Greenville to Portland, Maine is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 29% on airfare.
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 November 20, 2025.
See what other customers who have flown with Breeze Airways, Southwest, and Delta from Greenville to Portland have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
6.7
Boarding
8.3
Comfort
8.2
Entertainment
6.7
Overall
8.2
Crew
8.8
Reviews
1 / 14
10.0
ExcellentKim,Nov 2025
PWM - RSW
Food
6.7
Boarding
8.3
Comfort
8.2
Entertainment
6.7
Overall
8.2
Crew
8.8
Reviews
1 / 14
10.0
ExcellentKim,Nov 2025
PWM - RSW
Food
6.7
Boarding
8.3
Comfort
8.2
Entertainment
6.7
Overall
8.2
Crew
8.8
Reviews
1 / 14
10.0
ExcellentKim,Nov 2025
PWM - RSW
Food
6.7
Boarding
8.3
Comfort
8.2
Entertainment
6.7
Overall
8.2
Crew
8.8
Reviews
1 / 14
10.0
ExcellentKim,Nov 2025
PWM - RSW
Food
6.7
Boarding
8.3
Comfort
8.2
Entertainment
6.7
Overall
8.2
Crew
8.8
Reviews
1 / 14
10.0
ExcellentKim,Nov 2025
PWM - RSW
Food
6.7
Boarding
8.3
Comfort
8.2
Entertainment
6.7
Overall
8.2
Crew
8.8
Reviews
1 / 14
10.0
ExcellentKim,Nov 2025
PWM - RSW
Related info for your journey
Find useful and relevant information for your journey from Greenville 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
Brunswick
Auburn
Conway
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Alternative routes for Greenville to Portland
See prices for flight routes from nearby airports that may be better suited for you.
Top 5 airlines flying from Greenville to Portland
Discover the top 5 airlines that operate flights from Greenville 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 November 20, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$98 | Average$253 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$270 | Average$376 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$270 | Average$379 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$279 | Average$409 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$280 | Average$476 | FlexibilityNo cancel fee | On-time69% |