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$169+ Cheap flights from Greenville to Portland, ME (GSP - PWM)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/21. Fares are subject to change and may not be available on all flights or dates of travel.
GSP — PWM
Feb 4 — Feb 111
Tue 2/4
Tue 2/11
1 adult, Economy
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The best prices from Greenville to Portland are usually found in August or September, booked 68 days in advance, depart on a Saturday or Tuesday and return on a Tuesday

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 January 30, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$297
(Delta)

One-way from

$169
(American Airlines)

Popular in

April

Cheapest in

August

Average price

$354
Provider with most accurate pricing for Greenville-Portland flight deals.
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Provider most trusted by Cheapflights users for Greenville-Portland flights.
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From Greenville to Portland
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One-way flight from Greenville to Portland
Search Deals
Highest demand for flights based on searches. 23% potential increase in price ($130 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($21 potential savings vs. average RT price).
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Average for round-trip flights in January 2025
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Find flight deals from Greenville to Portland

Cheapest flights from Greenville to Portland
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 January 30, 2025.

This Delta deal was found by Cheapflights users on 1/30. 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 3/265:13 pmGSP - PWM
1 stop6h 01mDelta
Tue 4/14:30 pmPWM - GSP
1 stop5h 45mDelta
Deal found 1/30$297
This American Airlines deal was found by Cheapflights users on 1/30. 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 2/207:10 amGSP - PWM
1 stop4h 37mAmerican Airlines
Mon 2/244:13 pmPWM - GSP
1 stop4h 17mAmerican Airlines
Deal found 1/30$332
This Southwest deal was found by Cheapflights users on 1/30. 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.
Sat 3/17:55 amGSP - PWM
1 stop4h 15mSouthwest
Sat 3/85:20 amPWM - GSP
1 stop4h 20mSouthwest
Deal found 1/30$337
This United Airlines deal was found by Cheapflights users on 1/30. 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 3/126:40 amGSP - PWM
2 stops8h 12mUnited Airlines
Sun 3/166:01 amPWM - GSP
1 stop5h 32mUnited Airlines
Deal found 1/30$462

Find flights from Greenville to Portland within your budget

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 January 30, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

GreenvillePortland

GSP - PWM

GSPPWM

Greenville

Wed 3/26

5:13 pm-11:14 pm

1 stop6h 01m

Portland

Tue 4/1

4:30 pm-10:15 pm

1 stop5h 45m

$297

GreenvillePortland

GSP - PWM

GSPPWM

Greenville

Thu 2/20

7:10 am-11:47 am

1 stop4h 37m

Portland

Mon 2/24

4:13 pm-8:30 pm

1 stop4h 17m

$332

GreenvillePortland

GSP - PWM

GSPPWM

Greenville

Sat 3/1

7:55 am-12:10 pm

1 stop4h 15m

Portland

Sat 3/8

5:20 am-9:40 am

1 stop4h 20m

$337

GreenvillePortland

GSP - PWM

GSPPWM

Greenville

Wed 3/12

6:40 am-2:52 pm

2 stops8h 12m

Portland

Sun 3/16

6:01 am-11:33 am

1 stop5h 32m

$462

GreenvillePortland

GSP - PWM

GSPPWM

Greenville

Fri 2/21

7:10 am-11:47 am

1 stop4h 37m

$169

GreenvillePortland

GSP - PWM

GSPPWM

Greenville

Mon 2/24

6:45 pm-10:40 pm

1 stop3h 55m

$204

GreenvillePortland

GSP - PWM

GSPPWM

Greenville

Fri 2/21

5:40 am-2:22 pm

2 stops8h 42m

$335

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/29

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 January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Greenville-Portland, Maine flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Greenville-Portland, Maine flight deals on Cheapflights vs. FlightHub >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 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 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.

Travel insights for flights from Greenville to Portland

Get recent, data-driven insights about flights from Greenville to Portland including ideal travel times, pricing trends, and more.

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 January 24, 2025.

The best time to book flights from Greenville to Portland, Maine is 68 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, January is the cheapest month in which you can book a flight from Greenville to Portland, Maine (average of $296). Flying from Greenville to Portland, Maine in April is currently the most expensive (average of $498). 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 January 30, 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 30% on airfare.

Rainfall in Portland by month

Plan your trip to Portland by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Portland, Maine ranges from 2.9 - 4.5 inches per month. November is typically the wettest month, when rainfall can reach 4.5 in. August is typically the driest time to visit Portland, Maine when rainfall is around 2.9 in.

Temperature in Portland by month

Plan your trip to Portland by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Portland, Maine, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

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 January 30, 2025.
Southwest
8.1
Very good
4,585 reviews

Entertainment

7.7

Comfort

8.1

Overall

8.1

Crew

8.7

Food

7.1

Boarding

8.2

Reviews

1 / 20

6.0
Good

Lauren,Dec 2024

MCI - DCA

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Southwest
8.1
Very good
4,585 reviews
Southwest
8.1
Very good
4,585 reviews

Entertainment

7.7

Comfort

8.1

Overall

8.1

Crew

8.7

Food

7.1

Boarding

8.2

Reviews

1 / 20

6.0
Good

Lauren,Dec 2024

MCI - DCA

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Delta
8.0
Very good
8,450 reviews
Southwest
8.1
Very good
4,585 reviews

Entertainment

7.7

Comfort

8.1

Overall

8.1

Crew

8.7

Food

7.1

Boarding

8.2

Reviews

1 / 20

6.0
Good

Lauren,Dec 2024

MCI - DCA

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

United Airlines
7.4
Good
8,906 reviews
Southwest
8.1
Very good
4,585 reviews

Entertainment

7.7

Comfort

8.1

Overall

8.1

Crew

8.7

Food

7.1

Boarding

8.2

Reviews

1 / 20

6.0
Good

Lauren,Dec 2024

MCI - DCA

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,585 reviews

Entertainment

7.7

Comfort

8.1

Overall

8.1

Crew

8.7

Food

7.1

Boarding

8.2

Reviews

1 / 20

6.0
Good

Lauren,Dec 2024

MCI - DCA

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

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.

  • What are the cheapest airlines flying from Greenville to Portland, Maine round-trip?

    Flying on Delta is currently your cheapest option to Portland, Maine, with prices starting at $297. Additional round-trip tickets that might be worth considering are offered by American Airlines and Southwest, with the lowest prices starting at $332 and $337, respectively. You may be able to fly from Greenville to Portland, Maine for 30% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Greenville to Portland, Maine one-way?

    To fly one-way, consider booking your trip with American Airlines, which is currently one of the cheapest options available, starting at $169. Southwest flights start at $204 while deals on Delta start at $335 one-way.

  • Can I find deals for flights from Greenville to Portland that include hotel bookings?

    Yes. In addition to deals on Greenville to Portland flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Greenville to Portland?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Greenville to Portland.

  • Can I find deals for business class flights from Greenville to Portland?

    Yes. Cheapflights offers flight deals from Greenville to Portland by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Greenville to Portland, Maine?

    Currently, January is the cheapest month in which you can book a flight from Greenville to Portland, Maine (average of $296). Flying from Greenville to Portland, Maine in April is currently the most expensive (average of $498). 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.

See more FAQs

Traveling to a place near Greenville?

Book flights to Greenville if you plan to visit one of these locations
Bath
North Conway
Brunswick
Auburn
Conway
Lewiston

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Top 3 airlines flying from Greenville to Portland

Discover the top 3 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 January 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$266Average$396FlexibilityNo cancel feeOn-time71%
DeltaCheapest$270Average$386FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$296Average$376FlexibilityNo cancel feeOn-time63%
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