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

Cheapflights users have booked flights from Greenville to Portland round-trip from $313. Other airlines that can offer you cheap pricing are Delta, from $323, and Southwest, from $355. American Airlines is priced at 37% lower than the current average price of a flight leaving 3 months from now.

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

The cheapest airline one-way is American Airlines, with whom users have recently found tickets for as low as $157. However, be on the lookout for offers from Delta and Allegiant Air, as they are both options that can get you from Greenville to Portland for a low price.

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

Travelers seeking maximum savings on their Greenville to Portland flight should consider departing on Friday at noon when fares are most often at their lowest. Monday afternoons 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 Greenville to Portland?

When booking a flight from Greenville to Portland, you may want to consider flying on American Airlines, Delta or United Airlines as they are the most popular for this route.

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

Thursday is generally a great day to depart. Flying on this day could help you save up to 26%.

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

Find a great deal and save up to 92% by booking at least 11 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Greenville to Portland within the next two weeks, with the cheapest ticket starting at $341.

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

February is one of the best times of the year to fly to Portland from Greenville. Prices for February average $500 per person but you can even find prices for as low as $346. The most expensive prices can be found in the month of December. Opting for a February flight can save you 21% on your journey compared to booking in December

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

Most trusted provider : When it comes to deals on Greenville-Portland flights, Cheapflights users trust Mytrip the most. Mytrip 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 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 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.

$143+ Flights from Greenville to Portland - 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

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3. Compare prices and book

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Cheapflights Tip: The best prices from Greenville to Portland are usually found in February or January, booked 62 days in advance, depart on a Friday or Thursday and return on a Wednesday

Cheap flight deals from Greenville to Portland

Most accurate provider	Mytrip 3 stars
Most trusted provider	Mytrip 3 stars
Round-trip from	$313 (American Airlines)
One-way from	$143 (Mytrip)
Popular in	December
Cheapest in	February
Average price	$456

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

Search Deals

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

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From Greenville to Portland

Search Deals

One-way flight from Greenville to Portland

Search Deals

Highest demand for flights based on searches. 4% potential increase in price ($20 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease ($10 potential savings vs. average RT price).

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Average for round-trip flights in May 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 May 1, 2025.

Wed 7/95:53 pmGSP - PDX

1 stop9h 34mAmerican Airlines

Wed 7/165:30 amPDX - GSP

1 stop8h 33mAmerican Airlines

Deal found 4/29

$313

Tue 6/107:30 amGSP - PDX

2 stops11h 30mDelta

Tue 6/1710:16 amPDX - GSP

2 stops10h 41mDelta

Deal found 4/30

$323

Wed 7/235:34 pmGSP - PDX

1 stop7h 59mUnited Airlines

Sat 7/2611:20 pmPDX - GSP

1 stop7h 32mUnited Airlines

Deal found 4/28

$348

Wed 7/97:20 amGSP - PDX

1 stop10h 50mSouthwest

Wed 7/166:30 amPDX - GSP

2 stops8h 55mSouthwest

Deal found 4/29

$355

Thu 5/293:50 pmGSP - PDX

2 stops25h 50mMultiple Airlines

Thu 6/196:39 pmPDX - GSP

3 stops17h 37mMultiple Airlines

Deal found 4/30

$435

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

Wed 7/95:53 pmGSP - PDX

1 stop9h 34mAmerican Airlines

Wed 7/165:30 amPDX - GSP

1 stop8h 33mAmerican Airlines

Deal found 4/29

$313

Tue 6/107:30 amGSP - PDX

2 stops11h 30mDelta

Tue 6/1710:16 amPDX - GSP

2 stops10h 41mDelta

Deal found 4/30

$323

Wed 7/97:20 amGSP - PDX

1 stop10h 50mSouthwest

Wed 7/166:30 amPDX - GSP

2 stops8h 55mSouthwest

Deal found 4/29

$355

Thu 5/293:50 pmGSP - PDX

2 stops25h 50mMultiple Airlines

Thu 6/196:39 pmPDX - GSP

3 stops17h 37mMultiple Airlines

Deal found 4/30

$435

Thu 6/264:25 pmGSP - PDX

1 stop8h 51mUnited Airlines

Mon 6/306:43 pmPDX - GSP

2 stops12h 09mUnited Airlines

Deal found 4/30

$512

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

Mon 5/53:55 pmGSP - PDX

3 stops29h 10mMultiple Airlines

Sat 5/105:40 pmPDX - GSP

2 stops17h 07mMultiple Airlines

Deal found 4/29

$488

Tue 5/66:45 amGSP - PDX

1 stop15h 00mUnited Airlines

Tue 5/132:14 pmPDX - GSP

1 stop29h 46mUnited Airlines

Deal found 4/29

$564

Tue 5/64:21 pmGSP - PDX

1 stop9h 18mAmerican Airlines

Thu 5/89:38 pmPDX - GSP

1 stop10h 06mAmerican Airlines

Deal found 4/29

$707

Sat 5/105:18 pmGSP - PDX

1 stop7h 26mDelta

Tue 5/2011:11 pmPDX - GSP

1 stop8h 08mDelta

Deal found 4/29

$558

Tue 5/136:45 amGSP - PDX

1 stop11h 30mUnited Airlines

Tue 5/2011:59 pmPDX - GSP

1 stop7h 10mUnited Airlines

Deal found 4/29

$485

Thu 5/294:16 pmGSP - PDX

1 stop7h 20mAmerican Airlines

Thu 6/199:55 pmPDX - GSP

1 stop7h 23mAmerican Airlines

Deal found 4/30

$379

Thu 5/295:30 amGSP - PDX

2 stops9h 34mDelta

Thu 6/198:05 pmPDX - GSP

2 stops9h 55mDelta

Deal found 4/30

$389

Thu 5/293:50 pmGSP - PDX

2 stops25h 50mMultiple Airlines

Thu 6/196:39 pmPDX - GSP

3 stops17h 37mMultiple Airlines

Deal found 4/30

$435

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

Mon 6/26:16 pmGSP - PDX

2 stops25h 29mMultiple Airlines

Deal found 4/30

$143

Wed 5/284:21 pmGSP - PDX

1 stop9h 18mAmerican Airlines

Deal found 4/30

$157

Wed 5/285:30 amGSP - PDX

2 stops9h 34mDelta

Deal found 4/30

$162

Thu 5/293:50 pmGSP - PDX

2 stops25h 50mAllegiant Air

Deal found 4/30

$179

Thu 5/294:35 pmGSP - PDX

1 stop7h 16mUnited Airlines

Deal found 4/30

$226

Fri 5/231:50 pmGSP - PDX

2 stops11h 30mSouthwest

Deal found 4/29

$329

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

GreenvillePortland

GSP - PDX

GSPPDX

Greenville

Wed 7/9

5:53 pm-12:27 am

1 stop9h 34m

Portland

Wed 7/16

5:30 am-5:03 pm

1 stop8h 33m

$313

GreenvillePortland

GSP - PDX

GSPPDX

Greenville

Tue 6/10

7:30 am-4:00 pm

2 stops11h 30m

Portland

Tue 6/17

10:16 am-11:57 pm

2 stops10h 41m

$323

GreenvillePortland

GSP - PDX

GSPPDX

Greenville

Wed 7/23

5:34 pm-10:33 pm

1 stop7h 59m

Portland

Sat 7/26

11:20 pm-9:52 am

1 stop7h 32m

$348

GreenvillePortland

GSP - PDX

GSPPDX

Greenville

Wed 7/9

7:20 am-3:10 pm

1 stop10h 50m

Portland

Wed 7/16

6:30 am-6:25 pm

2 stops8h 55m

$355

GreenvillePortland

GSP - PDX

GSPPDX

Greenville

Thu 5/29

3:50 pm-2:40 pm

2 stops25h 50m

Portland

Thu 6/19

6:39 pm-3:16 pm

3 stops17h 37m

$435

GreenvillePortland

GSP - PDX

GSPPDX

Greenville

Mon 6/2

6:16 pm-4:45 pm

2 stops25h 29m

$143

GreenvillePortland

GSP - PDX

GSPPDX

Greenville

Wed 9/10

4:28 pm-8:26 pm

1 stop6h 58m

$157

GreenvillePortland

GSP - PDX

GSPPDX

Greenville

Tue 9/9

6:45 am-4:12 pm

2 stops12h 27m

$162

GreenvillePortland

GSP - PDX

GSPPDX

Greenville

Thu 5/29

6:05 am-11:56 am

1 stop8h 51m

$226

GreenvillePortland

GSP - PDX

GSPPDX

Greenville

Fri 5/23

1:50 pm-10:20 pm

2 stops11h 30m

$329

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Compare providers for flights from Greenville to Portland

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

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

The price you pay for your flight from Greenville to Portland may vary depending on when you book. For the best chance of a lower fare, look to book 62 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, November is the cheapest month in which you can book a flight from Greenville to Portland (average of $277). Flying from Greenville to Portland in March is currently the most expensive (average of $368). 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 PDX?

When flying from Greenville to Portland, 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 6% versus a flight in the evening.

Rainfall in Portland by month

In terms of precipitation, rainfall in Portland ranges from 0.7 - 5.6 inches per month. November is typically the wettest month, when rainfall can reach 5.6 in. July is typically the driest time to visit Portland when rainfall is around 0.7 in.

Temperature in Portland by month

If weather is an important factor for your trip to Portland, 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 69.8 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 Portland

Read through reviews of airlines operating flights from Greenville to Portland, 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!

Allegiant Air

7.3

Good

734 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 Greenville to Portland round-trip?
Cheapflights users have booked flights from Greenville to Portland round-trip from $313. Other airlines that can offer you cheap pricing are Delta, from $323, and Southwest, from $355. American Airlines is priced at 37% lower than the current average price of a flight leaving 3 months from now.
What are the cheapest airlines to fly from Greenville to Portland one-way?
The cheapest airline one-way is American Airlines, with whom users have recently found tickets for as low as $157. However, be on the lookout for offers from Delta and Allegiant Air, as they are both options that can get you from Greenville to Portland for a low price.
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?
Currently, November is the cheapest month in which you can book a flight from Greenville to Portland (average of $277). Flying from Greenville to Portland in March is currently the most expensive (average of $368). 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 Portland

Top 4 airlines flying from Greenville to Portland

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$324	Average$497	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$336	Average$500	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$344	Average$494	FlexibilityNo cancel fee	On-time71%
Southwest	Cheapest$394	Average$398	FlexibilityNo cancel fee	On-time63%

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$143+ Cheap flights from Greenville to Portland (GSP - PDX)

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 6/2. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Greenville to Portland 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 Greenville to Portland are usually found in February or January, booked 62 days in advance, depart on a Friday or Thursday and return on a Wednesday

Cheap flight deals from Greenville to Portland

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

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 May 1, 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 May 1, 2025.

Cheapflights Fare Finder

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

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 May.

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.

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?

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

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

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

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 May 1, 2025.

Rainfall in Portland by month

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

Temperature in Portland by month

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

Reviews of airlines servicing Portland

Read through reviews of airlines operating flights from Greenville to Portland, 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 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 round-trip?

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

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

How can I find direct flights from Greenville to Portland?

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

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

Traveling to a place near Greenville?

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Alternative routes for Greenville to Portland

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Top 4 airlines flying from Greenville to Portland

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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 May 1, 2025.