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

Flying on United Airlines is currently your cheapest option to Greenville, with prices starting at $313. Additional round-trip tickets that might be worth considering are offered by Delta and American Airlines, with the lowest prices starting at $318 and $332, respectively. United Airlines is priced at 40% lower than the current average price of a flight leaving 3 months from now.

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

One-way options have recently been found by users for as low as $162 on Delta. Other airlines that offer cheap prices include American Airlines from $176 and United Airlines from $207 one-way.

What is the cheapest day to fly from Portland to Greenville?

Travelers seeking maximum savings on their Portland to Greenville flight should consider departing on Tuesday at noon when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

What are the most popular airlines that fly from Portland to Greenville?

Before booking your flight from Portland to Greenville check out the most popular airlines for this route: American Airlines, Delta or United Airlines.

What is the cheapest day to fly round-trip from Portland to Greenville?

Thursday flights are found to be more expensive to fly from Portland to Greenville. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Greenville.

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

Travelers have found it’s best to book a flight 53 days in advance to save up to 82% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 53 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Portland to Greenville 1-2 weeks in advance for as low as $598, or $639 for flights within the next 24 hours.

What is the cheapest month to fly from Portland to Greenville?

February is one of the best times of the year to fly to Greenville from Portland. Prices for February average $529 per person but you can even find prices for as low as $362. The most expensive prices can be found in the month of December. Opting for a February flight can save you 28% on your journey compared to booking in December

Most accurate provider : When it comes to deals on Portland-Greenville flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Portland-Greenville flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Portland-Greenville flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Portland-Greenville 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 Portland-Greenville flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

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

How can I find direct flights from Portland to Greenville?

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

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

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

$162+ Flights from Portland to Greenville - Compare & Save Big

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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

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Cheapflights Tip: The best prices from Portland to Greenville are usually found in February or January, booked 69 days in advance, depart on a Wednesday or Tuesday and return on a Friday

Cheap flight deals from Portland to Greenville

Most accurate provider	FlightHub 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$313 (United Airlines)
One-way from	$162 (Delta)
Popular in	December
Cheapest in	February
Average price	$580

Provider with most accurate pricing for Portland-Greenville flight deals.

Search Deals

Provider most trusted by Cheapflights users for Portland-Greenville flights.

Search Deals

From Portland to Greenville

Search Deals

One-way flight from Portland to Greenville

Search Deals

Highest demand for flights based on searches. 2% potential increase in price ($15 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($15 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in May 2025

Search Deals

Find flight deals from Portland to Greenville

Cheapest flights from Portland to Greenville
Explore the most affordable flight options available from Portland to Greenville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 1, 2025.

Fri 7/45:33 amPDX - GSP

1 stop8h 28mAmerican Airlines

Tue 7/152:35 pmGSP - PDX

1 stop9h 12mAmerican Airlines

Deal found 4/30

$313

Wed 5/2811:11 pmPDX - GSP

1 stop8h 08mDelta

Tue 6/37:35 amGSP - PDX

2 stops11h 33mDelta

Deal found 4/30

$318

Wed 5/2810:55 pmPDX - GSP

1 stop9h 11mUnited Airlines

Wed 6/45:18 pmGSP - PDX

1 stop8h 04mUnited Airlines

Deal found 4/30

$326

Thu 5/155:40 pmPDX - GSP

2 stops11h 40mMultiple Airlines

Mon 5/199:10 amGSP - PDX

2 stops30h 32mMultiple Airlines

Deal found 4/30

$487

Best flights from Portland to Greenville
Discover carefully curated flight deals from Portland to Greenville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 1, 2025.

Tue 5/2710:55 pmPDX - GSP

1 stop9h 11mUnited Airlines

Tue 6/35:18 pmGSP - PDX

1 stop8h 04mUnited Airlines

Deal found 4/28

$313

Wed 5/2811:11 pmPDX - GSP

1 stop8h 08mDelta

Tue 6/37:35 amGSP - PDX

2 stops11h 33mDelta

Deal found 4/29

$318

Mon 6/29:38 pmPDX - GSP

1 stop10h 06mAmerican Airlines

Tue 6/108:05 pmGSP - PDX

1 stop7h 31mAmerican Airlines

Deal found 4/29

$332

Wed 6/259:15 pmPDX - GSP

1 stop9h 40mSouthwest

Wed 7/93:10 pmGSP - PDX

2 stops11h 15mSouthwest

Deal found 4/30

$375

Wed 5/281:37 pmPDX - GSP

2 stops27h 51mMultiple Airlines

Wed 6/49:46 pmGSP - PDX

3 stops21h 59mMultiple Airlines

Deal found 4/30

$506

Last-minute flights from Portland to Greenville
Discover last-minute flight deals from Portland to Greenville. Data last updated May 1, 2025 and is based on user searches.

Sat 5/1012:40 amPDX - GSP

2 stops10h 26mDelta

Wed 6/46:00 pmGSP - PDX

2 stops8h 43mDelta

Deal found 4/30

$530

Sun 5/1111:59 pmPDX - GSP

1 stop20h 01mUnited Airlines

Wed 6/49:30 amGSP - PDX

2 stops14h 17mUnited Airlines

Deal found 4/30

$520

Sun 5/115:40 pmPDX - GSP

3 stops18h 25mMultiple Airlines

Wed 6/49:46 pmGSP - PDX

2 stops21h 59mMultiple Airlines

Deal found 4/30

$521

Thu 5/155:40 pmPDX - GSP

2 stops11h 40mMultiple Airlines

Mon 5/199:10 amGSP - PDX

2 stops30h 32mMultiple Airlines

Deal found 4/30

$487

Wed 5/2811:11 pmPDX - GSP

1 stop8h 08mDelta

Tue 6/37:35 amGSP - PDX

2 stops11h 33mDelta

Deal found 4/30

$318

Wed 5/2810:55 pmPDX - GSP

1 stop9h 11mUnited Airlines

Wed 6/45:18 pmGSP - PDX

1 stop8h 04mUnited Airlines

Deal found 4/30

$326

Wed 5/2811:59 pmPDX - GSP

1 stop8h 45mAmerican Airlines

Tue 6/34:21 pmGSP - PDX

1 stop8h 00mAmerican Airlines

Deal found 5/1

$360

One-way flights from Portland to Greenville
Search for one-way flight options from Portland to Greenville. Find affordable one-way fares based on user searches. Data last updated May 1, 2025.

Wed 5/2110:20 amPDX - GSP

2 stops10h 32mDelta

Deal found 4/30

$162

Wed 5/211:37 pmPDX - GSP

3 stops28h 43mMultiple Airlines

Deal found 4/30

$165

Fri 6/612:59 amPDX - GSP

1 stop7h 53mAmerican Airlines

Deal found 4/30

$176

Wed 5/215:00 amPDX - GSP

1 stop7h 21mUnited Airlines

Deal found 4/30

$207

Wed 6/186:25 pmPDX - GSP

2 stops12h 30mSouthwest

Deal found 4/30

$225

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

PortlandGreenville

PDX - GSP

PDXGSP

Portland

Fri 7/4

5:33 am-5:01 pm

1 stop8h 28m

Greenville

Tue 7/15

2:35 pm-8:47 pm

1 stop9h 12m

$313

PortlandGreenville

PDX - GSP

PDXGSP

Portland

Wed 5/28

11:11 pm-10:19 am

1 stop8h 08m

Greenville

Tue 6/3

7:35 am-4:08 pm

2 stops11h 33m

$318

PortlandGreenville

PDX - GSP

PDXGSP

Portland

Wed 5/28

10:55 pm-11:06 am

1 stop9h 11m

Greenville

Wed 6/4

5:18 pm-10:22 pm

1 stop8h 04m

$326

PortlandGreenville

PDX - GSP

PDXGSP

Portland

Thu 5/15

5:40 pm-8:20 am

2 stops11h 40m

Greenville

Mon 5/19

9:10 am-12:42 pm

2 stops30h 32m

$487

PortlandGreenville

PDX - GSP

PDXGSP

Portland

Wed 5/21

10:20 am-11:52 pm

2 stops10h 32m

$162

PortlandGreenville

PDX - GSP

PDXGSP

Portland

Wed 5/21

1:37 pm-9:20 pm

3 stops28h 43m

$165

PortlandGreenville

PDX - GSP

PDXGSP

Portland

Fri 6/6

12:59 am-11:52 am

1 stop7h 53m

$176

PortlandGreenville

PDX - GSP

PDXGSP

Portland

Wed 5/21

5:00 am-3:21 pm

1 stop7h 21m

$207

PortlandGreenville

PDX - GSP

PDXGSP

Portland

Wed 6/18

6:25 pm-9:55 am

2 stops12h 30m

$225

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Compare providers for flights from Portland to Greenville

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Portland to Greenville in May.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*2 stars
eDreams	Price Accuracy3 stars	Trust 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 Portland-Greenville flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Portland-Greenville flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Portland-Greenville flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Portland-Greenville 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 Portland-Greenville 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 Portland to Greenville

Have a flexible travel schedule? Discover the best time to fly to Greenville from Portland 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 Portland to Greenville

How far ahead should I book a flight from Portland to Greenville?

The best time to book flights from Portland to Greenville is 69 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 Portland to Greenville?

Currently, January is the cheapest month in which you can book a flight from Portland to Greenville (average of $329). Flying from Portland to Greenville in March is currently the most expensive (average of $386). 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 PDX to GSP?

When flying from Portland to Greenville, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 24% versus a flight in the afternoon.

Rainfall in Greenville by month

In terms of precipitation, rainfall in Greenville ranges from 3.6 - 5.1 inches per month. March is typically the wettest month, when rainfall can reach 5.1 in. November is typically the driest time to visit Greenville when rainfall is around 3.6 in.

Temperature in Greenville by month

If weather is an important factor for your trip to Greenville, 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 78.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 41.0 F).

Reviews of airlines servicing Greenville

Read through reviews of airlines operating flights from Portland to Greenville, such as Southwest, Delta and United Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Southwest

8.0

Very good

4,294 reviews

Reviews

1 / 20

10.0

Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!

Southwest

8.0

Very good

4,294 reviews

Southwest

8.0

Very good

4,294 reviews

Reviews

1 / 20

10.0

Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!

Delta

8.0

Very good

7,934 reviews

Southwest

8.0

Very good

4,294 reviews

Reviews

1 / 20

10.0

Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!

United Airlines

7.4

Good

8,696 reviews

Southwest

8.0

Very good

4,294 reviews

Reviews

1 / 20

10.0

Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!

American Airlines

7.2

Good

10,000 reviews

Southwest

8.0

Very good

4,294 reviews

Reviews

1 / 20

10.0

Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!

Related info for your journey

What are the cheapest airlines flying from Portland to Greenville round-trip?
Flying on United Airlines is currently your cheapest option to Greenville, with prices starting at $313. Additional round-trip tickets that might be worth considering are offered by Delta and American Airlines, with the lowest prices starting at $318 and $332, respectively. United Airlines is priced at 40% lower than the current average price of a flight leaving 3 months from now.
What are the cheapest airlines to fly from Portland to Greenville one-way?
One-way options have recently been found by users for as low as $162 on Delta. Other airlines that offer cheap prices include American Airlines from $176 and United Airlines from $207 one-way.
Can I find deals for flights from Portland to Greenville that include hotel bookings?
Yes. In addition to deals on Portland to Greenville flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Portland to Greenville?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to Greenville.
Can I find deals for business class flights from Portland to Greenville?
Yes. Cheapflights offers flight deals from Portland to Greenville 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 Portland to Greenville?
Currently, January is the cheapest month in which you can book a flight from Portland to Greenville (average of $329). Flying from Portland to Greenville in March is currently the most expensive (average of $386). 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.

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Other flights to Greenville

Top 4 airlines flying from Portland to Greenville

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$326	Average$474	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$350	Average$516	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$366	Average$524	FlexibilityNo cancel fee	On-time69%
Southwest	Cheapest$367	Average$592	FlexibilityNo cancel fee	On-time63%

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$162+ Cheap flights from Portland to Greenville (PDX - GSP)

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 5/21. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Portland to Greenville with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Portland to Greenville are usually found in February or January, booked 69 days in advance, depart on a Wednesday or Tuesday and return on a Friday

Cheap flight deals from Portland to Greenville

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Portland to Greenville

Cheapest flights from Portland to GreenvilleExplore the most affordable flight options available from Portland to Greenville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 1, 2025.

Explore the most affordable flight options available from Portland to Greenville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 1, 2025.

Cheapflights Fare Finder

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

Compare providers for flights from Portland to Greenville

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 Portland to Greenville in May.

Best time to book a flight from Portland to Greenville

Have a flexible travel schedule? Discover the best time to fly to Greenville from Portland with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Portland to Greenville

How far ahead should I book a flight from Portland to Greenville?

Use this chart to determine the optimal time to book a round-trip flight from Portland to Greenville. Price data was last updated on April 25, 2025.

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

What is the cheapest time of day to fly from PDX to GSP?

Find hourly flight availability from Portland to Greenville. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 1, 2025.

Rainfall in Greenville by month

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

Temperature in Greenville by month

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

Reviews of airlines servicing Greenville

Read through reviews of airlines operating flights from Portland to Greenville, such as Southwest, Delta and United Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Portland to Greenville. 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 Portland to Greenville round-trip?

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

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

How can I find direct flights from Portland to Greenville?

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

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

Traveling to a place near Portland?

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Alternative routes for Portland to Greenville

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Top 4 airlines flying from Portland to Greenville

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Cheapest flights from Portland to Greenville
Explore the most affordable flight options available from Portland to Greenville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 1, 2025.