What airlines fly to Portland, Maine?

American Airlines, Delta and Allegiant Air 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 66% of people opting to fly with this airline when traveling to Portland, Maine. Keep in mind that there are 8 different airlines that fly to Portland, Maine on a routine basis, so you have a few additional options to choose from.

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

Breeze Airways, United Airlines, and Delta 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 November 2026.

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.

$163 Cheap Flights from Greenville to Portland, Maine in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Greenville to Portland

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

1:48 pm - 11:48 amGSP Greenville-PWM Portland

22h 00m2 stops Fort Myers SW Florida Intl Raleigh-Durham

6:31 pm - 9:32 amPWM Portland-GSP Greenville

15h 01m1 stop Tampa

$298Breeze Airways

Tue, Jan 12 - Wed, Jan 20

3:31 pm - 9:08 amGSP Greenville-PWM Portland

17h 37m1 stop Orlando Sanford Intl

6:31 pm - 9:32 amPWM Portland-GSP Greenville

15h 01m1 stop Tampa

$307Multiple Airlines

Thu, Jan 21 - Sat, Jan 30

2:57 pm - 9:43 pmGSP Greenville-PWM Portland

6h 46m1 stop Washington, D.C. Reagan-National

7:00 am - 11:27 amPWM Portland-GSP Greenville

4h 27m1 stop Charlotte Douglas

$325American Airlines

Tue, Jan 12 - Wed, Jan 20

4:01 pm - 10:48 pmGSP Greenville-PWM Portland

6h 47m1 stop Charlotte Douglas

10:55 am - 3:36 pmPWM Portland-GSP Greenville

4h 41m1 stop Philadelphia

$325American Airlines

Fri, Dec 11 - Mon, Dec 14

11:34 am - 4:39 pmGSP Greenville-PWM Portland

5h 05m1 stop New York LaGuardia

6:00 am - 1:22 pmPWM Portland-GSP Greenville

7h 22m1 stop Atlanta Hartsfield-Jackson

$325Delta

Thu, Dec 3 - Wed, Dec 9

7:25 pm - 11:52 pmGSP Greenville-PWM Portland

4h 27m1 stop Atlanta Hartsfield-Jackson

5:19 pm - 10:15 pmPWM Portland-GSP Greenville

4h 56m1 stop New York LaGuardia

$325Delta

Fri, Dec 11 - Mon, Dec 14

3:31 pm - 9:08 amGSP Greenville-PWM Portland

17h 37m1 stop Orlando Sanford Intl

12:28 pm - 2:41 pmPWM Portland-GSP Greenville

26h 13m2 stops Raleigh-Durham Orlando

$327Multiple Airlines

Thu, Jan 21 - Sat, Jan 30

8:05 am - 12:10 pmGSP Greenville-PWM Portland

4h 05m1 stop Baltimore/Washington

5:15 am - 2:10 pmPWM Portland-GSP Greenville

8h 55m2 stops Baltimore/Washington Nashville Intl

$330Southwest

Thu, Dec 3 - Wed, Dec 9

11:10 am - 9:45 pmGSP Greenville-PWM Portland

10h 35m2 stops Nashville Intl Baltimore/Washington

5:05 am - 6:00 pmPWM Portland-GSP Greenville

12h 55m2 stops Baltimore/Washington Nashville Intl

$335Southwest

Thu, Jan 21 - Sat, Jan 30

11:28 am - 4:24 pmGSP Greenville-PWM Portland

28h 56m2 stops Tampa Raleigh-Durham

6:31 pm - 9:32 amPWM Portland-GSP Greenville

15h 01m1 stop Tampa

$431Breeze Airways

Tue, Nov 17 - Sat, Nov 21

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Southwest flights from Greenville to Portland, Maine

Our best Southwest deals on Greenville to Portland, Maine flight tickets

Southwest

Dec 3

GSP8:05 amGreenville

4h 05m

1 stop

PWM12:10 pmPortland

Dec 9

PWM5:15 amPortland

8h 55m

2 stops

GSP2:10 pmGreenville

$330

Southwest

Jan 21

GSP11:10 amGreenville

10h 35m

2 stops

PWM9:45 pmPortland

Jan 30

PWM5:05 amPortland

12h 55m

2 stops

GSP6:00 pmGreenville

$335

Southwest

Jan 15

GSP6:30 amGreenville

10h 15m

2 stops

PWM4:45 pmPortland

Jan 18

PWM5:25 amPortland

4h 40m

1 stop

GSP10:05 amGreenville

$386

Breeze Airways flights from Greenville to Portland, Maine

Our best Breeze Airways deals on Greenville to Portland, Maine flight tickets

Breeze Airways

Jan 12

GSP1:48 pmGreenville

22h 00m

2 stops

PWM11:48 amPortland

Jan 20

PWM6:31 pmPortland

15h 01m

1 stop

GSP9:32 amGreenville

$298

Breeze Airways

Nov 17

GSP11:28 amGreenville

28h 56m

2 stops

PWM4:24 pmPortland

Nov 21

PWM6:31 pmPortland

15h 01m

1 stop

GSP9:32 amGreenville

$431

Breeze Airways

Nov 18

GSP8:47 pmGreenville

17h 38m

2 stops

PWM2:25 pmPortland

Nov 22

PWM3:10 pmPortland

4h 14m

1 stop

GSP7:24 pmGreenville

$441

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

Cheapest round-trip

GreenvillePortland

GSP Greenville - PWM Portland

GSPPWM

Greenville

Tue 1/12

1:48 pm-11:48 am

2 stops22h 00m

Portland

Wed 1/20

6:31 pm-9:32 am

1 stop15h 01m

$298

GreenvillePortland

GSP Greenville - PWM Portland

GSPPWM

Greenville

Thu 1/21

3:31 pm-9:08 am

1 stop17h 37m

Portland

Sat 1/30

6:31 pm-9:32 am

1 stop15h 01m

$307

GreenvillePortland

GSP Greenville - PWM Portland

GSPPWM

Greenville

Tue 1/12

2:57 pm-9:43 pm

1 stop6h 46m

Portland

Wed 1/20

7:00 am-11:27 am

1 stop4h 27m

$325

GreenvillePortland

GSP Greenville - PWM Portland

GSPPWM

Greenville

Fri 12/11

4:01 pm-10:48 pm

1 stop6h 47m

Portland

Mon 12/14

10:55 am-3:36 pm

1 stop4h 41m

$325

GreenvillePortland

GSP Greenville - PWM Portland

GSPPWM

Greenville

Thu 12/3

11:34 am-4:39 pm

1 stop5h 05m

Portland

Wed 12/9

6:00 am-1:22 pm

1 stop7h 22m

$325

Quickest round-trip

GreenvillePortland

GSP Greenville - PWM Portland

GSPPWM

Greenville

Fri 12/11

7:25 pm-11:52 pm

1 stop4h 27m

Portland

Mon 12/14

5:19 pm-10:15 pm

1 stop4h 56m

$325

GreenvillePortland

GSP Greenville - PWM Portland

GSPPWM

Greenville

Thu 1/21

3:31 pm-9:08 am

1 stop17h 37m

Portland

Sat 1/30

12:28 pm-2:41 pm

2 stops26h 13m

$327

GreenvillePortland

GSP Greenville - PWM Portland

GSPPWM

Greenville

Thu 12/3

8:05 am-12:10 pm

1 stop4h 05m

Portland

Wed 12/9

5:15 am-2:10 pm

2 stops8h 55m

$330

GreenvillePortland

GSP Greenville - PWM Portland

GSPPWM

Greenville

Thu 1/21

11:10 am-9:45 pm

2 stops10h 35m

Portland

Sat 1/30

5:05 am-6:00 pm

2 stops12h 55m

$335

GreenvillePortland

GSP Greenville - PWM Portland

GSPPWM

Greenville

Tue 11/17

11:28 am-4:24 pm

2 stops28h 56m

Portland

Sat 11/21

6:31 pm-9:32 am

1 stop15h 01m

$431

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

What is the typical price of a round-trip flight between Greenville and Portland, Maine?

Prices are currently typical for flights on this route.

Typical prices usually range from $262 to $837.
The lowest price recently found on this route was $287.

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

The cheapest month to fly to Portland, Maine from Greenville is in January. Flight prices, which tend to average around $269, 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 January, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $308.

How far in advance should I book a flight from Greenville 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 $471 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 $187 on momondo.

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	$163
Fastest flight time	4h 19m
Direct flights	None

The best one-way flight to Portland, Maine from Greenville in the past 72 hours is $163. The best round-trip flight deal from Greenville to Portland, Maine found on momondo in the last 72 hours is $298.

The fastest flight from Greenville to Portland, Maine takes 4h 19m

There are no direct flights from Greenville to Portland, Maine. There are no popular flight routes from Greenville to Portland, Maine.

Search flight deals

Frequently asked questions about flying from Greenville to Portland, Maine

How far is Greenville to Portland by plane?
Portland is 887.7 mi away from Greenville. Flights usually cover this in 4h 19m, 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 November 2026.
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 Breeze Airways (29% of total bookings). The next most popular airlines are American Airlines (24%), Delta (21%), and Southwest (18%).

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 $122	Free Cancellation	Rating 8.2 324 reviews	Search Breeze Airways flights
Delta	PriceFrom $162	Free Cancellation	Rating 7.8 8,701 reviews	Search Delta flights
United Airlines	PriceFrom $243	Free Cancellation	Rating 7.3 10,468 reviews	Search United Airlines flights
American Airlines	PriceFrom $322	Free Cancellation	Rating 7.0 12,233 reviews	Search American Airlines flights
Southwest	PriceFrom $390	Free Cancellation	Rating 8.0 4,211 reviews	Search Southwest flights

North Conway

Jackson

Boothbay Harbor

Brunswick

Lewiston

Freeport

Conway

Gorham

Auburn

Bartlett

Bath

Windham

Intervale

Georgetown

Oxford

Falmouth

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

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Airports servicing Maine

Rockland Knox County Regional Airport

Cheap flights from Greenville to Portland from $163

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 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.

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Southwest flights from Greenville to Portland, Maine

Our best Southwest deals on Greenville to Portland, Maine flight tickets

Breeze Airways flights from Greenville to Portland, Maine

Our best Breeze Airways 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

What is the typical price of a round-trip flight between Greenville and Portland, Maine?

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

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

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

What airlines fly to Portland, Maine?

When to book flights from Greenville to Portland, Maine

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

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying 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

Traveling to a place near Portland?

Why use momondo?

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

Fly your favorite airline to Portland

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Portland

List of cabin classes available on flights landing in Portland. Availability may vary depending on flight origin and airline.

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Popular flights according to clicks in the last 7 days on momondo

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According to popular flight searches on momondo this year

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