$157+ Cheap flights from Greenville to Portland (GSP - PDX)
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 9/24. Fares are subject to change and may not be available on all flights or dates of travel.
GSP — PDX
Oct 4 — Oct 111
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Greenville to Portland 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 Greenville to Portland
Cheapest
Best
Last-minute
One-way
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 September 4, 2026.
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 September 4, 2026.
This United Airlines deal was found by Cheapflights users on 9/1. 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 12/152:04 pm -
1 stop7h 39m
Tue 1/510:56 pm -
1 stop9h 30m
Deal found 9/1![United Airlines logo]()
$369
This United Airlines deal was found by Cheapflights users on 9/1. 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 10/276:20 am -
1 stop8h 32m
Tue 10/277:26 pm -
2 stops11h 04m
Deal found 9/1![United Airlines logo]()
$374
This United Airlines deal was found by Cheapflights users on 9/1. 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 9/114:00 pm -
1 stop9h 03m
Sat 9/267:02 am -
1 stop7h 03m
Deal found 9/1![United Airlines logo]()
$379
This American Airlines deal was found by Cheapflights users on 9/2. 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 10/216:43 pm -
1 stop8h 16m
Fri 10/3010:55 pm -
1 stop9h 13m
Deal found 9/2![American Airlines logo]()
$380
This American Airlines deal was found by Cheapflights users on 8/31. 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 12/155:17 pm -
1 stop9h 24m
Tue 1/511:31 pm -
1 stop8h 31m
Deal found 8/31![American Airlines logo]()
$389
This Southwest deal was found by Cheapflights users on 9/2. 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 10/217:00 am -
2 stops11h 20m
Fri 10/3011:35 pm -
2 stops10h 45m
Deal found 9/2![Southwest logo]()
$390
This United Airlines deal was found by Cheapflights users on 8/31. 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 12/86:30 am -
1 stop7h 56m
Tue 12/157:21 pm -
2 stops11h 31m
Deal found 8/31![United Airlines logo]()
$394
This United Airlines deal was found by Cheapflights users on 9/2. 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 10/206:20 am -
1 stop8h 13m
Thu 10/2911:30 pm -
1 stop7h 00m
Deal found 9/2![United Airlines logo]()
$397
This Southwest deal was found by Cheapflights users on 8/31. 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.
Tue 12/87:05 am -
2 stops12h 40m
Tue 12/156:20 am -
2 stops8h 50m
Deal found 8/31![Southwest logo]()
$399
This United Airlines deal was found by Cheapflights users on 9/3. 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 11/215:37 pm -
1 stop7h 50m
Sat 12/57:01 am -
1 stop6h 55m
Deal found 9/3![United Airlines logo]()
$405
Best flights from Greenville to PortlandDiscover 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 September 4, 2026.
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 September 4, 2026.
This United Airlines deal was found by Cheapflights users on 9/3. 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 11/214:29 pm -
1 stop9h 40m
Sat 12/55:00 am -
2 stops8h 56m
Deal found 9/3![United Airlines logo]()
$384
This Southwest deal was found by Cheapflights users on 9/1. 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 10/246:40 am -
2 stops10h 55m
Fri 10/3011:35 pm -
2 stops10h 45m
Deal found 9/1![Southwest logo]()
$390
This United Airlines deal was found by Cheapflights users on 8/30. 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 10/35:46 pm -
1 stop7h 37m
Mon 10/510:33 pm -
1 stop9h 12m
Deal found 8/30![United Airlines logo]()
$412
This Southwest deal was found by Cheapflights users on 9/3. 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 12/127:05 am -
2 stops10h 15m
Tue 1/56:00 am -
2 stops10h 50m
Deal found 9/3![Southwest logo]()
$443
This United Airlines deal was found by Cheapflights users on 9/2. 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 11/116:20 am -
2 stops11h 14m
Sun 11/1511:30 pm -
1 stop7h 00m
Deal found 9/2![United Airlines logo]()
$428
This Southwest deal was found by Cheapflights users on 9/1. 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.
Thu 10/151:05 pm -
2 stops10h 40m
Mon 10/1911:35 pm -
2 stops10h 05m
Deal found 9/1![Southwest logo]()
$467
This United Airlines deal was found by Cheapflights users on 9/2. 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 11/124:29 pm -
2 stops11h 15m
Sun 11/2211:30 pm -
1 stop7h 00m
Deal found 9/2![United Airlines logo]()
$473
This United Airlines deal was found by Cheapflights users on 9/3. 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 1/96:30 am -
1 stop8h 01m
Tue 1/127:01 am -
1 stop6h 53m
Deal found 9/3![United Airlines logo]()
$479
This United Airlines deal was found by Cheapflights users on 9/3. 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 12/152:04 pm -
2 stops13h 32m
Tue 1/57:49 pm -
2 stops11h 02m
Deal found 9/3![United Airlines logo]()
$489
This United Airlines deal was found by Cheapflights users on 8/31. 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.
Mon 9/285:15 pm -
2 stops10h 19m
Mon 10/511:30 pm -
1 stop7h 28m
Deal found 8/31![United Airlines logo]()
$494
Last-minute flights from Greenville to PortlandDiscover last-minute flight deals from Greenville to Portland. Data last updated September 4, 2026 and is based on user searches.
Discover last-minute flight deals from Greenville to Portland. Data last updated September 4, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 9/1. 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 9/114:00 pm -
1 stop9h 03m
Sat 9/267:02 am -
1 stop7h 03m
Deal found 9/1![United Airlines logo]()
$379
This United Airlines deal was found by Cheapflights users on 8/31. 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 9/116:10 pm -
1 stop7h 42m
Fri 9/2510:33 pm -
1 stop9h 12m
Deal found 8/31![United Airlines logo]()
$412
This Southwest deal was found by Cheapflights users on 8/31. 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 9/118:40 am -
1 stop9h 20m
Mon 9/2811:30 pm -
2 stops9h 55m
Deal found 8/31![Southwest logo]()
$417
This Southwest deal was found by Cheapflights users on 8/31. 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 9/118:40 am -
2 stops10h 55m
Tue 9/2911:30 pm -
2 stops9h 55m
Deal found 8/31![Southwest logo]()
$422
This American Airlines deal was found by Cheapflights users on 9/1. 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 10/156:43 pm -
1 stop8h 16m
Mon 10/1910:55 pm -
1 stop9h 13m
Deal found 9/1![American Airlines logo]()
$369
This Delta deal was found by Cheapflights users on 9/2. 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.
Mon 10/195:40 am -
1 stop8h 02m
Wed 10/286:50 am -
1 stop8h 19m
Deal found 9/2![Delta logo]()
$414
This United Airlines deal was found by Cheapflights users on 9/2. 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 10/206:20 am -
1 stop8h 13m
Thu 10/2911:30 pm -
1 stop7h 00m
Deal found 9/2![United Airlines logo]()
$397
This American Airlines deal was found by Cheapflights users on 9/2. 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 10/216:43 pm -
1 stop8h 16m
Fri 10/3010:55 pm -
1 stop9h 13m
Deal found 9/2![American Airlines logo]()
$380
This Southwest deal was found by Cheapflights users on 9/2. 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 10/217:00 am -
2 stops11h 20m
Fri 10/3011:35 pm -
2 stops10h 45m
Deal found 9/2![Southwest logo]()
$390
This United Airlines deal was found by Cheapflights users on 9/1. 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 10/276:20 am -
1 stop8h 32m
Tue 10/277:26 pm -
2 stops11h 04m
Deal found 9/1![United Airlines logo]()
$374
One-way flights from Greenville to PortlandSearch for one-way flight options from Greenville to Portland. Find affordable one-way fares based on user searches. Data last updated September 4, 2026.
Search for one-way flight options from Greenville to Portland. Find affordable one-way fares based on user searches. Data last updated September 4, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/31. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/243:39 pm -
2 stops23h 04m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 8/31![Multiple Airlines logo]()
$157
This Kiwi.com deal was found by Cheapflights users on 9/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/28:32 pm -
2 stops18h 04m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Multiple Airlines logo]()
$163
This Kiwi.com deal was found by Cheapflights users on 9/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/14:02 pm -
2 stops22h 52m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/1![Multiple Airlines logo]()
$173
This United Airlines deal was found by Cheapflights users on 9/1. 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 10/14:25 pm -
1 stop9h 28m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/1![United Airlines logo]()
$185
This Southwest deal was found by Cheapflights users on 9/1. 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.
Tue 10/271:25 pm -
2 stops11h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/1![Southwest logo]()
$190
This United Airlines deal was found by Cheapflights users on 9/2. 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 9/96:20 am -
1 stop8h 08m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![United Airlines logo]()
$195
This Delta deal was found by Cheapflights users on 9/3. 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 2/193:42 pm -
1 stop9h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Delta logo]()
$196
This United Airlines deal was found by Cheapflights users on 9/2. 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 9/106:20 am -
2 stops11h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![United Airlines logo]()
$200
This Southwest deal was found by Cheapflights users on 9/3. 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 2/196:15 am -
2 stops10h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Southwest logo]()
$201
This Southwest deal was found by Cheapflights users on 9/2. 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 10/141:25 pm -
2 stops11h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Southwest logo]()
$223
This United Airlines deal was found by Cheapflights users on 9/2. 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 10/154:25 pm -
1 stop9h 28m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![United Airlines logo]()
$230
Find flight deals from Greenville to Portland
Discover tips and strategies to find the most affordable flight options for your journey from Greenville (GSP) to Portland (PDX). 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 4, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $369 (United Airlines) |
One-way from | $157 (Kiwi.com) |
Popular in | December |
Cheapest in | October |
Average price | $412 |
Cheapflights Fare Finder
Customize your flight search to find flights from Greenville to Portland 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 4, 2026.
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
Cheapest round-trip
GreenvillePortland
GSP Greenville - PDX Portland
GSPPDX
Greenville
Fri 10/2
8:32 pm-11:36 am
2 stops18h 04m
Portland
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$163
GreenvillePortland
GSP Greenville - PDX Portland
GSPPDX
Greenville
Thu 10/1
4:02 pm-11:54 am
2 stops22h 52m
Portland
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$173
Quickest round-trip
GreenvillePortland
GSP Greenville - PDX Portland
GSPPDX
Greenville
Wed 10/14
5:46 pm-10:23 pm
1 stop7h 37m
Portland
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$185
GreenvillePortland
GSP Greenville - PDX Portland
GSPPDX
Greenville
Wed 11/11
4:29 pm-9:13 pm
1 stop7h 44m
Portland
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$185
GreenvillePortland
GSP Greenville - PDX Portland
GSPPDX
Greenville
Thu 10/1
4:25 pm-10:53 pm
1 stop9h 28m
Portland
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$185
GreenvillePortland
GSP Greenville - PDX Portland
GSPPDX
Greenville
Tue 10/27
6:20 am-11:52 am
1 stop8h 32m
Portland
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$185
GreenvillePortland
GSP Greenville - PDX Portland
GSPPDX
Greenville
Tue 10/27
1:25 pm-10:15 pm
2 stops11h 50m
Portland
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$190
GreenvillePortland
GSP Greenville - PDX Portland
GSPPDX
Greenville
Wed 11/11
2:50 pm-11:20 pm
2 stops11h 30m
Portland
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$190
GreenvillePortland
GSP Greenville - PDX Portland
GSPPDX
Greenville
Thu 9/10
3:01 pm-8:10 pm
1 stop8h 09m
Portland
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$195
GreenvillePortland
GSP Greenville - PDX Portland
GSPPDX
Greenville
Wed 9/9
6:20 am-11:28 am
1 stop8h 08m
Portland
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$195
Showing 1-10 of 22 resultsSorted by cheapest first
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 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 Greenville-Portland flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Greenville-Portland flight deals on Cheapflights vs. FlightHub >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 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 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.
GSP-PDX
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 61 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, October is the cheapest month in which you can book a flight from Greenville to Portland (average of $398). Flying from Greenville to Portland in December is currently the most expensive (average of $558). 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 Greenville to Portland?
Airfare is below average for this route at the moment.
Greenville to Portland flights typically cost between $386 and $481 in December.The cheapest round-trip price found within the last 5 days was $369 on United Airlines (Dec 15-Jan 5).
Reviews of airlines servicing Portland
Get insights into the airlines that provide service to Portland. 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 Portland. Reviews last updated September 4, 2026.
Peruse reviews from past customers who have flown with Delta,United Airlines, andAmerican Airlines from Greenville to Portland to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
7.8
Comfort
7.8
Crew
8.5
Boarding
8.1
Food
7.2
Entertainment
7.8
Reviews
1 / 20
8.0
ExcellentJorge,Aug 2026
TPA - ATL
Overall
7.8
Comfort
7.8
Crew
8.5
Boarding
8.1
Food
7.2
Entertainment
7.8
Reviews
1 / 20
8.0
ExcellentJorge,Aug 2026
TPA - ATL
Overall
7.8
Comfort
7.8
Crew
8.5
Boarding
8.1
Food
7.2
Entertainment
7.8
Reviews
1 / 20
8.0
ExcellentJorge,Aug 2026
TPA - ATL
Overall
7.8
Comfort
7.8
Crew
8.5
Boarding
8.1
Food
7.2
Entertainment
7.8
Reviews
1 / 20
8.0
ExcellentJorge,Aug 2026
TPA - ATL
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.
Traveling to a place near Portland?
Book flights to Portland if you plan to visit one of these locationsBeaverton
Seaside
Lincoln City
Durham
Longview
Lake Oswego
Kelso
Clackamas
Troutdale
Vancouver
Cannon Beach
McMinnville
The Dalles
Wilsonville
Stevenson
Tillamook
Hillsboro
Astoria
Gresham
Silverton
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Other flights from Greenville
Popular flights
Portland flight routes
Alternative routes for Greenville to Portland
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Portland by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Greenville to Portland by cabin class
Find flights from Greenville to Portland, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Greenville and Portland flights
Browse other Greenville and Portland flight options. Last updated on September 4, 2026.
Other flights from Greenville
Browse through other flights departing from Greenville. Flights are based on user searches made on Cheapflights and were last updated on September 4, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to Portland
Explore flights to Portland departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 4, 2026.
Top 3 airlines flying from Greenville to Portland
Discover the top 3 airlines that operate flights from Greenville to Portland. 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 4, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$248 | Average$456 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$333 | Average$447 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$358 | Average$447 | FlexibilityNo cancel fee | On-time71% |