$185+ Cheap flights from Portland to Greenville (PDX - GSP)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/28. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — GSP
Oct 9 — Oct 161
Round-trip
1 adult, Economy
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Find cheap flights from Portland to Greenville with Cheapflights
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
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Portland to Greenville
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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 September 9, 2026.
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 September 9, 2026.
This United Airlines deal was found by Cheapflights users on 9/8. 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.
Sat 10/310:58 am -
1 stop9h 15m
Sat 10/174:25 pm -
1 stop7h 45m
Deal found 9/8![United Airlines logo]()
$369
This United Airlines deal was found by Cheapflights users on 9/9. 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.
Sat 10/37:02 am -
1 stop7h 03m
Sat 10/102:51 pm -
2 stops10h 32m
Deal found 9/9![United Airlines logo]()
$374
This Delta deal was found by Cheapflights users on 9/9. 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.
Fri 10/211:10 pm -
1 stop9h 49m
Sat 10/35:00 pm -
1 stop7h 47m
Deal found 9/9![Delta logo]()
$379
This Delta deal was found by Cheapflights users on 9/9. 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.
Fri 10/211:10 pm -
1 stop9h 49m
Fri 10/163:39 pm -
1 stop9h 10m
Deal found 9/9![Delta logo]()
$389
This Southwest deal was found by Cheapflights users on 9/7. 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.
Wed 12/210:10 am -
2 stops7h 35m
Wed 12/92:50 pm -
2 stops11h 30m
Deal found 9/7![Southwest logo]()
$399
This American Airlines deal was found by Cheapflights users on 9/5. 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 12/316:19 am -
1 stop7h 20m
Sat 1/93:26 pm -
1 stop7h 41m
Deal found 9/5![American Airlines logo]()
$411
This Delta deal was found by Cheapflights users on 9/9. 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.
Sat 10/310:57 pm -
1 stop7h 28m
Wed 10/145:40 am -
1 stop8h 02m
Deal found 9/9![Delta logo]()
$414
This Delta deal was found by Cheapflights users on 9/9. 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.
Sat 10/310:57 pm -
1 stop7h 28m
Wed 10/710:08 am -
2 stops14h 48m
Deal found 9/9![Delta logo]()
$417
This Southwest deal was found by Cheapflights users on 9/7. 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.
Mon 10/1911:35 pm -
2 stops10h 05m
Sat 10/318:30 am -
2 stops12h 45m
Deal found 9/7![Southwest logo]()
$421
This American Airlines deal was found by Cheapflights users on 9/7. 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.
Sun 11/16:00 am -
1 stop7h 27m
Sat 11/147:02 am -
1 stop8h 26m
Deal found 9/7![American Airlines logo]()
$423
This Delta deal was found by Cheapflights users on 9/9. 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.
Fri 10/211:10 pm -
1 stop9h 49m
Wed 10/145:40 am -
1 stop8h 02m
Deal found 9/9![Delta logo]()
$424
This Southwest deal was found by Cheapflights users on 9/9. 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.
Mon 10/511:35 pm -
2 stops10h 05m
Tue 10/137:00 am -
2 stops9h 50m
Deal found 9/9![Southwest logo]()
$426
Best flights from Portland to GreenvilleDiscover 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 September 9, 2026.
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 September 9, 2026.
This United Airlines deal was found by Cheapflights users on 9/8. 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.
Sat 10/36:50 am -
2 stops11h 08m
Sat 10/175:46 pm -
1 stop7h 37m
Deal found 9/8![United Airlines logo]()
$374
This Southwest deal was found by Cheapflights users on 9/6. 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 11/76:55 am -
2 stops8h 15m
Wed 11/117:05 am -
2 stops9h 05m
Deal found 9/6![Southwest logo]()
$434
This American Airlines deal was found by Cheapflights users on 9/4. 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.
Wed 9/2311:48 am -
1 stop7h 06m
Wed 9/306:23 pm -
1 stop8h 44m
Deal found 9/4![American Airlines logo]()
$499
This United Airlines deal was found by Cheapflights users on 9/6. 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 10/711:30 pm -
1 stop7h 28m
Tue 10/136:20 am -
1 stop8h 13m
Deal found 9/6![United Airlines logo]()
$450
This Southwest deal was found by Cheapflights users on 9/6. 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.
Fri 10/3011:35 pm -
2 stops10h 45m
Mon 11/21:00 pm -
2 stops13h 55m
Deal found 9/6![Southwest logo]()
$471
This United Airlines deal was found by Cheapflights users on 9/9. 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 9/238:40 am -
2 stops9h 37m
Wed 9/305:46 pm -
1 stop7h 37m
Deal found 9/9![United Airlines logo]()
$472
This Southwest deal was found by Cheapflights users on 9/6. 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.
Wed 10/76:15 am -
2 stops10h 50m
Tue 10/137:00 am -
2 stops9h 50m
Deal found 9/6![Southwest logo]()
$519
This United Airlines deal was found by Cheapflights users on 9/9. 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 9/305:00 am -
2 stops15h 13m
Tue 10/66:20 am -
2 stops15h 11m
Deal found 9/9![United Airlines logo]()
$489
This United Airlines deal was found by Cheapflights users on 9/8. 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.
Thu 12/315:00 am -
2 stops12h 51m
Sat 1/96:30 am -
3 stops14h 50m
Deal found 9/8![United Airlines logo]()
$495
This United Airlines deal was found by Cheapflights users on 9/6. 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.
Tue 2/27:01 am -
1 stop6h 53m
Wed 2/37:00 am -
1 stop8h 19m
Deal found 9/6![United Airlines logo]()
$519
Last-minute flights from Portland to GreenvilleDiscover last-minute flight deals from Portland to Greenville. Data last updated September 9, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Greenville. Data last updated September 9, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 9/9. 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.
Fri 10/211:10 pm -
1 stop9h 49m
Tue 10/65:40 am -
1 stop8h 08m
Deal found 9/9![Delta logo]()
$379
This Delta deal was found by Cheapflights users on 9/9. 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.
Fri 10/211:10 pm -
1 stop9h 49m
Fri 10/163:39 pm -
1 stop9h 10m
Deal found 9/9![Delta logo]()
$389
This Delta deal was found by Cheapflights users on 9/9. 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.
Fri 10/211:10 pm -
1 stop9h 49m
Tue 10/135:40 am -
1 stop8h 02m
Deal found 9/9![Delta logo]()
$424
This Delta deal was found by Cheapflights users on 9/9. 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.
Fri 10/211:10 pm -
1 stop9h 49m
Wed 10/710:08 am -
2 stops14h 48m
Deal found 9/9![Delta logo]()
$427
This United Airlines deal was found by Cheapflights users on 9/8. 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.
Sat 10/310:58 am -
1 stop9h 15m
Sat 10/174:25 pm -
1 stop7h 45m
Deal found 9/8![United Airlines logo]()
$369
This United Airlines deal was found by Cheapflights users on 9/9. 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.
Sat 10/37:02 am -
1 stop7h 03m
Sat 10/102:51 pm -
2 stops10h 32m
Deal found 9/9![United Airlines logo]()
$374
This Delta deal was found by Cheapflights users on 9/9. 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.
Sat 10/310:57 pm -
1 stop7h 28m
Wed 10/145:40 am -
1 stop8h 02m
Deal found 9/9![Delta logo]()
$414
This Delta deal was found by Cheapflights users on 9/9. 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.
Sat 10/310:57 pm -
1 stop7h 28m
Wed 10/710:08 am -
2 stops14h 48m
Deal found 9/9![Delta logo]()
$417
This Southwest deal was found by Cheapflights users on 9/9. 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.
Mon 10/511:35 pm -
2 stops10h 05m
Tue 10/137:00 am -
2 stops9h 50m
Deal found 9/9![Southwest logo]()
$426
This American Airlines deal was found by Cheapflights users on 9/7. 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.
Fri 10/910:55 pm -
1 stop9h 13m
Tue 10/135:25 pm -
1 stop9h 14m
Deal found 9/7![American Airlines logo]()
$411
This Southwest deal was found by Cheapflights users on 9/7. 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.
Mon 10/1911:35 pm -
2 stops10h 05m
Sat 10/318:30 am -
2 stops12h 45m
Deal found 9/7![Southwest logo]()
$421
This American Airlines deal was found by Cheapflights users on 9/4. 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.
Tue 10/279:44 pm -
1 stop7h 40m
Sun 11/15:17 pm -
1 stop9h 26m
Deal found 9/4![American Airlines logo]()
$433
One-way flights from Portland to GreenvilleSearch for one-way flight options from Portland to Greenville. Find affordable one-way fares based on user searches. Data last updated September 9, 2026.
Search for one-way flight options from Portland to Greenville. Find affordable one-way fares based on user searches. Data last updated September 9, 2026.
This Southwest deal was found by Cheapflights users on 9/7. 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.
Mon 9/2810:45 pm -
1 stop8h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Southwest logo]()
$185
This American Airlines deal was found by Cheapflights users on 9/5. 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.
Sat 10/316:30 am -
1 stop7h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![American Airlines logo]()
$195
This Southwest deal was found by Cheapflights users on 9/7. 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.
Fri 10/2311:35 pm -
2 stops9h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Southwest logo]()
$200
This United Airlines deal was found by Cheapflights users on 9/7. 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.
Sat 1/97:01 am -
2 stops13h 18m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![United Airlines logo]()
$210
This Delta deal was found by Cheapflights users on 9/7. 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.
Fri 10/3011:43 am -
1 stop6h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Delta logo]()
$217
This United Airlines deal was found by Cheapflights users on 9/5. 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.
Sat 9/266:50 am -
2 stops11h 08m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![United Airlines logo]()
$222
This American Airlines deal was found by Cheapflights users on 9/5. 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.
Fri 10/3010:55 pm -
1 stop9h 13m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![American Airlines logo]()
$239
This United Airlines deal was found by Cheapflights users on 9/9. 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.
Sat 10/315:30 am -
2 stops12h 28m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![United Airlines logo]()
$245
This Southwest deal was found by Cheapflights users on 9/9. 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.
Wed 9/306:45 am -
2 stops11h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Southwest logo]()
$251
This United Airlines deal was found by Cheapflights users on 9/8. 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.
Fri 10/307:26 pm -
2 stops11h 36m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![United Airlines logo]()
$255
Find flight deals from Portland to Greenville
Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) to Greenville (GSP). 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 September 9, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $369 (United Airlines) |
One-way from | $185 (Southwest) |
Popular in | March |
Cheapest in | September |
Average price | $382 |
Cheapflights Fare Finder
Customize your flight search to find flights from Portland to Greenville 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 7,457,451 searches. Data last updated September 9, 2026.
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
Cheapest round-trip
PortlandGreenville
PDX Portland - GSP Greenville
PDXGSP
Portland
Wed 9/30
10:58 am-11:13 pm
1 stop9h 15m
Greenville
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$185
PortlandGreenville
PDX Portland - GSP Greenville
PDXGSP
Portland
Mon 9/28
10:45 pm-10:15 am
1 stop8h 30m
Greenville
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$185
PortlandGreenville
PDX Portland - GSP Greenville
PDXGSP
Portland
Fri 1/8
6:50 am-7:40 pm
2 stops9h 50m
Greenville
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$200
PortlandGreenville
PDX Portland - GSP Greenville
PDXGSP
Portland
Sat 1/9
7:01 am-11:19 pm
2 stops13h 18m
Greenville
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$210
PortlandGreenville
PDX Portland - GSP Greenville
PDXGSP
Portland
Fri 1/8
11:40 am-11:37 pm
1 stop8h 57m
Greenville
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$217
Quickest round-trip
PortlandGreenville
PDX Portland - GSP Greenville
PDXGSP
Portland
Sat 9/26
5:00 am-3:08 pm
1 stop7h 08m
Greenville
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$217
PortlandGreenville
PDX Portland - GSP Greenville
PDXGSP
Portland
Sat 10/31
5:30 am-8:58 pm
2 stops12h 28m
Greenville
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$245
PortlandGreenville
PDX Portland - GSP Greenville
PDXGSP
Portland
Mon 9/28
12:39 pm-7:44 pm
3 stops52h 05m
Greenville
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$261
PortlandGreenville
PDX Portland - GSP Greenville
PDXGSP
Portland
Sat 10/3
6:50 am-8:58 pm
2 stops11h 08m
Greenville
Sat 10/17
5:46 pm-10:23 pm
1 stop7h 37m
$374
PortlandGreenville
PDX Portland - GSP Greenville
PDXGSP
Portland
Sat 11/7
6:55 am-6:10 pm
2 stops8h 15m
Greenville
Wed 11/11
7:05 am-1:10 pm
2 stops9h 05m
$434
Showing 1-10 of 18 resultsSorted by cheapest first
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 September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- 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 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 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.
PDX-GSP
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 90 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, September is the cheapest month in which you can book a flight from Portland to Greenville (average of $382). Flying from Portland to Greenville in March is currently the most expensive (average of $742). 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.
How much does it cost to fly round-trip from Portland to Greenville?
Airfare is typical for this route at the moment.
Portland to Greenville flights typically cost between $339 and $422 in October.The cheapest round-trip price found within the last 5 days was $369 on United Airlines (Oct 3-Oct 17).
Reviews of airlines servicing Greenville
Get insights into the airlines that provide service to Greenville. 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 Greenville. Reviews last updated September 9, 2026.
Get a feel of what it's like to fly with Southwest,Delta, andUnited Airlines from Portland to Greenville by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.6
Overall
8.0
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Food
7.0
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Crew
8.6
Overall
8.0
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Food
7.0
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Crew
8.6
Overall
8.0
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Food
7.0
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Crew
8.6
Overall
8.0
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Food
7.0
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Crew
8.6
Overall
8.0
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Food
7.0
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
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.
Traveling to a place near Greenville?
Book flights to Greenville if you plan to visit one of these locationsGreer
Simpsonville
Greenwood
Duncan
Anderson
Seneca
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Top 4 airlines flying from Portland to Greenville
Discover the top 4 airlines that operate flights from Portland to Greenville. 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 7,457,451 searches. Data last updated September 9, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$248 | Average$442 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$328 | Average$464 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$366 | Average$507 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$415 | Average$597 | FlexibilityNo cancel fee | On-time63% |