How many flights depart from Greenville to Portland, Maine on average per week?

The number of flights available between Greenville and Portland, Maine is 2 per week as of July 2025. The most frequent departure day is Thu, with 50% of weekly flights leaving on this day.

What airlines fly to Portland, Maine?

American Airlines, Delta and Frontier are the top three most popular airlines that fly to Portland, Maine from Greenville according to our data. American Airlines is the first choice among our users, with 60% of people opting to fly with this airline when traveling to Portland, Maine. Keep in mind that there are 10 different airlines that fly to Portland, Maine on a routine basis, so you have a few additional options to choose from.

Which airport is the most popular layover for flights between Greenville and Portland, Maine?

Baltimore (BWI) was the most common stop: 80% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport offers the lowest fares from Greenville to Portland, Maine?

Flights via Philadelphia (PHL) offer the lowest average round-trip price of $331.

Which layover airport has the shortest connection time from Greenville to Portland, Maine?

Philadelphia (PHL) has the shortest average layover time for this route: 1h 15m.

Which layover airport has the shortest travel time from Greenville to Portland, Maine?

Flights connecting via Philadelphia (PHL) have the shortest average one-way travel time: 4h 51m.

What is the cheapest airline that flies from Greenville to Portland?

Breeze Airways, American Airlines, and Southwest are the most popular carriers operating from Greenville to Portland

When did momondo last update prices for flights from Greenville Airport to Portland Airport?

Prices for flights from Greenville Airport to Portland Airport are refreshed on a daily basis.

How many operators does momondo search for flights from Greenville Airport to Portland Airport?

There are 5 operators available for flights from Greenville Airport to Portland Airport as of July 2025.

How old do you have to be to fly from Greenville Airport to Portland Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Greenville Airport to Portland Airport.

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

The travel and health documents you'll need for your trip to Portland Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Portland Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$106 Cheap Flights from Greenville to Portland in 2025

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Find the cheapest flights from Greenville to Portland

Round-trip

One-way

Last minute

Cheap round-trip flights

10:33 am - 2:30 pmGSP-PWM

3h 57m1 stop

3:15 pm - 7:23 pmPWM-GSP

4h 08m1 stop

$202Breeze Airways

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Thu, Oct 9 - Thu, Oct 16

10:33 am - 2:30 pmGSP-PWM

3h 57m1 stop

3:15 pm - 7:23 pmPWM-GSP

4h 08m1 stop

$209Breeze Airways

Find Deal

Thu, Oct 9 - Thu, Oct 16

6:05 am - 12:31 pmGSP-PWM

6h 26m1 stop

8:40 am - 2:07 pmPWM-GSP

5h 27m1 stop

$237American Airlines

Find Deal

Wed, Oct 1 - Sat, Oct 4

4:17 pm - 10:59 pmGSP-PWM

6h 42m2 stops

6:00 am - 10:52 amPWM-GSP

4h 52m1 stop

$242American Airlines

Find Deal

Sat, Aug 23 - Tue, Aug 26

5:30 am - 12:59 pmGSP-PWM

7h 29m2 stops

7:00 am - 4:16 pmPWM-GSP

9h 16m2 stops

$247Delta

Find Deal

Tue, Sep 9 - Sat, Sep 13

2:33 pm - 12:34 amGSP-PWM

10h 01m2 stops

1:35 pm - 8:25 pmPWM-GSP

6h 50m1 stop

$286Delta

Find Deal

Fri, Sep 26 - Fri, Oct 3

5:46 pm - 11:03 pmGSP-PWM

5h 17m1 stop

6:41 pm - 11:30 pmPWM-GSP

4h 49m1 stop

$288United Airlines

Find Deal

Sat, Aug 23 - Mon, Aug 25

1:50 pm - 8:00 pmGSP-PWM

6h 10m1 stop

5:45 am - 9:55 amPWM-GSP

4h 10m1 stop

$343Southwest

Find Deal

Fri, Aug 15 - Sat, Aug 23

8:01 am - 1:53 pmGSP-PWM

5h 52m1 stop

8:00 am - 9:11 pmPWM-GSP

13h 11m2 stops

$347United Airlines

Find Deal

Fri, Oct 10 - Mon, Oct 13

10:45 am - 8:00 pmGSP-PWM

9h 15m2 stops

5:45 am - 9:55 amPWM-GSP

4h 10m1 stop

$348Southwest

Find Deal

Fri, Aug 15 - Sat, Aug 23

American Airlines flights from Greenville to Portland, Maine

Our best American Airlines deals on Greenville to Portland, Maine flight tickets

American Airlines

Oct 1

GSP6:05 amGreenville

6h 26m

1 stop

PWM12:31 pmPortland

Oct 4

PWM8:40 amPortland

5h 27m

1 stop

GSP2:07 pmGreenville

$237

Find similar

American Airlines

Aug 23

GSP4:17 pmGreenville

6h 42m

2 stops

PWM10:59 pmPortland

Aug 26

PWM6:00 amPortland

4h 52m

1 stop

GSP10:52 amGreenville

$242

Find similar

American Airlines

Sep 2

GSP8:55 amGreenville

6h 35m

2 stops

PWM3:30 pmPortland

Sep 6

PWM8:02 amPortland

8h 12m

2 stops

GSP4:14 pmGreenville

$269

Find similar

United Airlines flights from Greenville to Portland, Maine

Our best United Airlines deals on Greenville to Portland, Maine flight tickets

United Airlines

Aug 23

GSP5:46 pmGreenville

5h 17m

1 stop

PWM11:03 pmPortland

Aug 25

PWM6:41 pmPortland

4h 49m

1 stop

GSP11:30 pmGreenville

$288

Find similar

United Airlines

Oct 10

GSP8:01 amGreenville

5h 52m

1 stop

PWM1:53 pmPortland

Oct 13

PWM8:00 amPortland

13h 11m

2 stops

GSP9:11 pmGreenville

$347

Find similar

United Airlines

Oct 10

GSP9:35 amGreenville

8h 07m

1 stop

PWM5:42 pmPortland

Oct 13

PWM10:40 amPortland

6h 23m

1 stop

GSP5:03 pmGreenville

$364

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momondo Fare Finder

Use the filters below to find and compare flights from Greenville to Portland, Maine that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

GreenvillePortland

GSP - PWM

GSPPWM

Greenville

Thu 10/9

10:33 am-2:30 pm

1 stop3h 57m

Portland

Thu 10/16

3:15 pm-7:23 pm

1 stop4h 08m

$202

GreenvillePortland

GSP - PWM

GSPPWM

Greenville

Thu 10/9

10:33 am-2:30 pm

1 stop3h 57m

Portland

Thu 10/16

3:15 pm-7:23 pm

1 stop4h 08m

$209

GreenvillePortland

GSP - PWM

GSPPWM

Greenville

Wed 10/1

6:05 am-12:31 pm

1 stop6h 26m

Portland

Sat 10/4

8:40 am-2:07 pm

1 stop5h 27m

$237

GreenvillePortland

GSP - PWM

GSPPWM

Greenville

Sat 8/23

4:17 pm-10:59 pm

2 stops6h 42m

Portland

Tue 8/26

6:00 am-10:52 am

1 stop4h 52m

$242

GreenvillePortland

GSP - PWM

GSPPWM

Greenville

Tue 9/9

5:30 am-12:59 pm

2 stops7h 29m

Portland

Sat 9/13

7:00 am-4:16 pm

2 stops9h 16m

$247

GreenvillePortland

GSP - PWM

GSPPWM

Greenville

Fri 9/26

2:33 pm-12:34 am

2 stops10h 01m

Portland

Fri 10/3

1:35 pm-8:25 pm

1 stop6h 50m

$286

GreenvillePortland

GSP - PWM

GSPPWM

Greenville

Sat 8/23

5:46 pm-11:03 pm

1 stop5h 17m

Portland

Mon 8/25

6:41 pm-11:30 pm

1 stop4h 49m

$288

GreenvillePortland

GSP - PWM

GSPPWM

Greenville

Fri 8/15

1:50 pm-8:00 pm

1 stop6h 10m

Portland

Sat 8/23

5:45 am-9:55 am

1 stop4h 10m

$343

GreenvillePortland

GSP - PWM

GSPPWM

Greenville

Fri 10/10

8:01 am-1:53 pm

1 stop5h 52m

Portland

Mon 10/13

8:00 am-9:11 pm

2 stops13h 11m

$347

GreenvillePortland

GSP - PWM

GSPPWM

Greenville

Fri 8/15

10:45 am-8:00 pm

2 stops9h 15m

Portland

Sat 8/23

5:45 am-9:55 am

1 stop4h 10m

$348

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Greenville 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

Prices

Airlines

Layovers

Other information

What is the cheapest month to fly to Portland, Maine?

The cheapest month to fly to Portland, Maine from Greenville is in September. Flight prices, which tend to average around $296, are often lower during this time because this is during the off-season. If you aren’t able to travel to Portland, Maine during the month of September, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $326.

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 Greenville is on a Saturday. momondo users have found tickets for Saturday departures for as low as $342. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Wednesday is the most expensive day to depart from Greenville because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $431.

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

At noon is the cheapest time of day to fly from Greenville to Portland, Maine when you can find flight prices for as low as $292. Flying to Portland, Maine at noon 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 $412. Of course, these prices can vary depending on the time of year and what airport you fly to.

How far in advance should I book a flight to Portland, Maine?

You are more likely to see cheaper flights to Portland, Maine from Greenville when booking weeks ahead of your departure date. In general, you can expect to find flights to Portland, Maine for around $392 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Portland, Maine from Greenville for as low as $203 on momondo.

How have Greenville to Portland, Maine flight prices changed over time?

When to book flights from Greenville to Portland, Maine

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

Estimated round-trip price

Cheap Greenville to Portland, Maine (GSP to PWM) flight deals and tips

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

Best Price Found	$106
Fastest flight time	3h 57m
Direct flights	None
Airports in Portland, Maine	1 airport

The best one-way flight to Portland, Maine from Greenville in the past 72 hours is $106. The best round-trip flight deal from Greenville to Portland, Maine found on momondo in the last 72 hours is $202.

The fastest flight from Greenville to Portland, Maine takes 3h 57m

There are no direct flights from Greenville to Portland, Maine. Popular non-direct route for this connection is Greenville Airport - Portland Airport.

There is 1 airport near Portland, Maine: Portland (PWM)

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How far is Greenville to Portland by plane?
Portland is 887.7 mi away from Greenville. Flights usually cover this in 3h 57m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Greenville Airport to Portland Airport?
Prices for flights from Greenville Airport to Portland Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Greenville Airport to Portland Airport?
There are 5 operators available for flights from Greenville Airport to Portland Airport as of July 2025.
How old do you have to be to fly from Greenville Airport to Portland Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Greenville Airport to Portland Airport.
What documentation or ID do you need to fly to Portland Airport?
The travel and health documents you'll need for your trip to Portland Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Portland Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Greenville to Portland, Maine?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Greenville to Portland, Maine is American Airlines (51% of total bookings). The next most popular airlines are Delta (15%), Southwest (15%), and Breeze Airways (12%).

Best airlines flying from Greenville to Portland, Maine

Compare and see reviews for airlines that fly from Greenville to Portland, Maine with momondo

Airline	Rating	Free Cancellation	Price
Breeze Airways	PriceFrom $98	Free Cancellation	Rating 8.0 191 reviews	Search Breeze Airways flights
Delta	PriceFrom $270	Free Cancellation	Rating 8.0 7,981 reviews	Search Delta flights
American Airlines	PriceFrom $270	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
United Airlines	PriceFrom $280	Free Cancellation	Rating 7.4 8,900 reviews	Search United Airlines flights
Southwest	PriceFrom $296	Free Cancellation	Rating 8.0 4,246 reviews	Search Southwest flights

Breeze Airways Flights From Greenville to Portland, Maine
Breeze Airways is one of the most popular airlines flying from Greenville to Portland, Maine, operating 2 flights/week on average for this route. A good Breeze Airways flight deal for Greenville to Portland, Maine starts from $98 round-trip, up to an average price of $253. Our users have rated Breeze Airways at 8.0/10.

North Conway

Boothbay Harbor

Jackson

Conway

Freeport

Bartlett

Lewiston

Gorham

Brunswick

Auburn

Intervale

Windham

Falmouth

Bath

Georgetown

Oxford

Tamworth

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Greenville to Portland. momondo saves you time and could save you money on your trip.

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

Yes. momondo allows you to filter the results for Greenville to Portland flights to just show those with flexible booking policies.

How can momondo help me find flights from Greenville to Portland?

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

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

Price alerts on flights to Portland from Greenville are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Portland, Maine trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Cheap flights from Greenville to Portland from $106

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Greenville to Portland departing on 9/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

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Find the cheapest flights from Greenville to Portland

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American Airlines flights from Greenville to Portland, Maine

Our best American Airlines deals on Greenville to Portland, Maine flight tickets

United Airlines flights from Greenville to Portland, Maine

Our best United Airlines deals on Greenville to Portland, Maine flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Greenville to Portland, Maine that are best for you.

See travel insights to Portland from

How to get the cheapest flight ticket from Greenville 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 month to fly to Portland, Maine?

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

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

How far in advance should I book a flight to Portland, Maine?

How have Greenville to Portland, Maine flight prices changed over time?

What is the cheapest airline that flies from Greenville to Portland?

Breeze Airways, American Airlines, and Southwest are the most popular carriers operating from Greenville to Portland

What airlines fly to Portland, Maine?

Which airport is the most popular layover for flights between Greenville and Portland, Maine?

Baltimore (BWI) was the most common stop: 80% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport offers the lowest fares from Greenville to Portland, Maine?

Flights via Philadelphia (PHL) offer the lowest average round-trip price of $331.

Which layover airport has the shortest travel time from Greenville to Portland, Maine?

Flights connecting via Philadelphia (PHL) have the shortest average one-way travel time: 4h 51m.

Which layover airport has the shortest connection time from Greenville to Portland, Maine?

Philadelphia (PHL) has the shortest average layover time for this route: 1h 15m.

How many flights depart from Greenville to Portland, Maine on average per week?

The number of flights available between Greenville and Portland, Maine is 2 per week as of July 2025. The most frequent departure day is Thu, with 50% of weekly flights leaving on this day.

When to book flights from Greenville to Portland, Maine

Cheap Greenville to Portland, Maine (GSP to PWM) flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in Portland, Maine

How far is Greenville to Portland by plane?

When did momondo last update prices for flights from Greenville Airport to Portland Airport?

How many operators does momondo search for flights from Greenville Airport to Portland Airport?

How old do you have to be to fly from Greenville Airport to Portland Airport?

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

What is the most popular airline from Greenville to Portland, Maine?

Best airlines flying from Greenville to Portland, Maine

Compare and see reviews for airlines that fly from Greenville to Portland, Maine with momondo

Breeze Airways Flights From Greenville to Portland, Maine

Traveling to a place near Portland?

Why use momondo?

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

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

How can momondo help me find flights from Greenville to Portland?

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

An easier way to manage your Portland, Maine trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing Maine