$101+ Cheap flights from Greenville to Portland, ME (GSP - PWM)
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 8/31. Fares are subject to change and may not be available on all flights or dates of travel.
GSP — PWM
Jun 8 — Jun 151
Round-trip
1 adult, Economy
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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 9, 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 May 9, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/2310:35 am
GSP
- PWM
1 stop3h 51m
Breeze Airways
Tue 9/227:35 am
PWM
- GSP
1 stop4h 14m
Breeze Airways
Deal found 5/4![Breeze Airways logo]()
$163
This Kiwi.com deal was found by Cheapflights users on 5/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/27:10 pm
GSP
- PWM
1 stop4h 14m
Breeze Airways
Tue 10/67:35 am
PWM
- GSP
1 stop4h 14m
Breeze Airways
Deal found 5/4![Breeze Airways logo]()
$222
This Kiwi.com deal was found by Cheapflights users on 5/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/257:10 pm
GSP
- PWM
1 stop4h 14m
Breeze Airways
Mon 9/287:00 am
PWM
- GSP
1 stop4h 31m
Breeze Airways
Deal found 5/6![Breeze Airways logo]()
$225
This Kiwi.com deal was found by Cheapflights users on 5/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2710:35 am
GSP
- PWM
1 stop3h 51m
Breeze Airways
Mon 8/317:00 am
PWM
- GSP
1 stop4h 26m
Breeze Airways
Deal found 5/4![Breeze Airways logo]()
$234
This Kiwi.com deal was found by Cheapflights users on 5/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2410:37 am
GSP
- PWM
1 stop3h 43m
Breeze Airways
Tue 9/297:35 am
PWM
- GSP
1 stop4h 14m
Breeze Airways
Deal found 5/7![Breeze Airways logo]()
$236
This Breeze Airways deal was found by Cheapflights users on 5/4. 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 Breeze Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/46:19 pm
GSP
- PWM
1 stop4h 19m
Breeze Airways
Mon 9/77:00 am
PWM
- GSP
1 stop4h 26m
Breeze Airways
Deal found 5/4![Breeze Airways logo]()
$250
This Kiwi.com deal was found by Cheapflights users on 5/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/27:10 pm
GSP
- PWM
1 stop4h 14m
Breeze Airways
Mon 10/57:00 am
PWM
- GSP
1 stop4h 31m
Breeze Airways
Deal found 5/4![Breeze Airways logo]()
$263
This Kiwi.com deal was found by Cheapflights users on 5/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/276:19 pm
GSP
- PWM
1 stop4h 19m
Breeze Airways
Fri 7/317:00 am
PWM
- GSP
1 stop4h 26m
Breeze Airways
Deal found 5/7![Breeze Airways logo]()
$270
This Kiwi.com deal was found by Cheapflights users on 5/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2410:37 am
GSP
- PWM
1 stop3h 43m
Breeze Airways
Mon 9/287:00 am
PWM
- GSP
1 stop4h 31m
Breeze Airways
Deal found 5/4![Breeze Airways logo]()
$277
This Breeze Airways deal was found by Cheapflights users on 5/4. 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 Breeze Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/310:35 am
GSP
- PWM
1 stop3h 51m
Breeze Airways
Fri 9/116:00 am
PWM
- GSP
1 stop4h 31m
Breeze Airways
Deal found 5/4![Breeze Airways logo]()
$282
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 May 9, 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 May 9, 2026.
This Breeze Airways deal was found by Cheapflights users on 5/8. 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 Breeze Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/66:19 pm
GSP
- PWM
1 stop4h 19m
Breeze Airways
Fri 7/247:00 am
PWM
- GSP
1 stop4h 26m
Breeze Airways
Deal found 5/8![Breeze Airways logo]()
$325
This Delta deal was found by Cheapflights users on 5/5. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/136:05 pm
GSP
- PWM
1 stop5h 01m
Delta
Sat 10/176:00 am
PWM
- GSP
1 stop4h 58m
Delta
Deal found 5/5![Delta logo]()
$365
This Southwest deal was found by Cheapflights users on 5/6. 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.
Thu 5/2812:35 pm
GSP
- PWM
2 stops10h 50m
Southwest
Tue 6/23:55 pm
PWM
- GSP
1 stop4h 05m
Southwest
Deal found 5/6![Southwest logo]()
$396
This United Airlines deal was found by Cheapflights users on 5/4. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/87:51 pm
GSP
- PWM
1 stop4h 08m
United Airlines
Sat 9/126:00 am
PWM
- GSP
1 stop7h 38m
United Airlines
Deal found 5/4![United Airlines logo]()
$420
This Breeze Airways deal was found by Cheapflights users on 5/8. 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 Breeze Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/310:35 am
GSP
- PWM
1 stop3h 51m
Breeze Airways
Mon 9/77:00 am
PWM
- GSP
1 stop4h 26m
Breeze Airways
Deal found 5/8![Breeze Airways logo]()
$366
This Delta deal was found by Cheapflights users on 5/7. 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.
Wed 6/36:00 am
GSP
- PWM
1 stop4h 23m
Delta
Thu 6/256:00 am
PWM
- GSP
1 stop4h 59m
Delta
Deal found 5/7![Delta logo]()
$391
This Southwest deal was found by Cheapflights users on 5/4. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/37:00 am
GSP
- PWM
1 stop7h 30m
Southwest
Wed 10/71:30 pm
PWM
- GSP
1 stop6h 40m
Southwest
Deal found 5/4![Southwest logo]()
$407
This Breeze Airways deal was found by Cheapflights users on 5/6. 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 Breeze Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2710:37 am
GSP
- PWM
1 stop3h 43m
Breeze Airways
Sun 10/43:05 pm
PWM
- GSP
1 stop4h 14m
Breeze Airways
Deal found 5/6![Breeze Airways logo]()
$379
This Southwest deal was found by Cheapflights users on 5/4. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/27:05 am
GSP
- PWM
1 stop7h 40m
Southwest
Wed 10/77:30 am
PWM
- GSP
2 stops11h 05m
Southwest
Deal found 5/4![Southwest logo]()
$412
This Breeze Airways deal was found by Cheapflights users on 5/7. 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 Breeze Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/3010:35 am
GSP
- PWM
1 stop3h 51m
Breeze Airways
Mon 8/37:00 am
PWM
- GSP
1 stop4h 26m
Breeze Airways
Deal found 5/7![Breeze Airways logo]()
$380
This Breeze Airways deal was found by Cheapflights users on 5/8. 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 Breeze Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2710:35 am
GSP
- PWM
1 stop3h 51m
Breeze Airways
Sun 8/303:11 pm
PWM
- GSP
1 stop4h 00m
Breeze Airways
Deal found 5/8![Breeze Airways logo]()
$420
Last-minute flights from Greenville to PortlandDiscover last-minute flight deals from Greenville to Portland. Data last updated May 9, 2026 and is based on user searches.
Discover last-minute flight deals from Greenville to Portland. Data last updated May 9, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 5/6. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/286:32 pm
GSP
- PWM
1 stop5h 19m
American Airlines
Tue 6/25:42 am
PWM
- GSP
1 stop6h 48m
American Airlines
Deal found 5/6![American Airlines logo]()
$365
This Kiwi.com deal was found by Cheapflights users on 5/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/294:10 pm
GSP
- PWM
1 stop17h 02m
Multiple Airlines
Sat 6/206:26 pm
PWM
- GSP
1 stop20h 47m
Multiple Airlines
Deal found 5/7![Multiple Airlines logo]()
$316
This Kiwi.com deal was found by Cheapflights users on 5/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/294:10 pm
GSP
- PWM
1 stop17h 02m
Multiple Airlines
Wed 6/246:26 pm
PWM
- GSP
1 stop20h 32m
Multiple Airlines
Deal found 5/7![Multiple Airlines logo]()
$339
This Kiwi.com deal was found by Cheapflights users on 5/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/318:23 am
GSP
- PWM
1 stop24h 49m
Multiple Airlines
Sat 6/206:26 pm
PWM
- GSP
1 stop20h 47m
Multiple Airlines
Deal found 5/7![Multiple Airlines logo]()
$353
This United Airlines deal was found by Cheapflights users on 5/7. 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.
Tue 6/27:40 pm
GSP
- PWM
1 stop4h 11m
United Airlines
Tue 6/235:15 am
PWM
- GSP
1 stop4h 40m
United Airlines
Deal found 5/7![United Airlines logo]()
$355
This Kiwi.com deal was found by Cheapflights users on 5/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/58:29 am
GSP
- PWM
2 stops31h 47m
Multiple Airlines
Sat 6/206:26 pm
PWM
- GSP
1 stop20h 47m
Multiple Airlines
Deal found 5/7![Multiple Airlines logo]()
$324
This Kiwi.com deal was found by Cheapflights users on 5/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/58:29 am
GSP
- PWM
2 stops31h 47m
Multiple Airlines
Wed 6/246:26 pm
PWM
- GSP
1 stop20h 32m
Multiple Airlines
Deal found 5/7![Multiple Airlines logo]()
$347
This Delta deal was found by Cheapflights users on 5/4. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/91:09 pm
GSP
- PWM
1 stop4h 43m
Delta
Fri 6/126:00 am
PWM
- GSP
1 stop4h 59m
Delta
Deal found 5/4![Delta logo]()
$371
This United Airlines deal was found by Cheapflights users on 5/6. 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 6/247:40 pm
GSP
- PWM
1 stop4h 11m
United Airlines
Tue 6/306:00 am
PWM
- GSP
1 stop4h 37m
United Airlines
Deal found 5/6![United Airlines logo]()
$350
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 May 9, 2026.
Search for one-way flight options from Greenville to Portland. Find affordable one-way fares based on user searches. Data last updated May 9, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/316:19 pm
GSP
- PWM
1 stop4h 19m
Breeze Airways
Deal found 5/6![Breeze Airways logo]()
$101
This Kiwi.com deal was found by Cheapflights users on 5/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/315:34 pm
GSP
- PWM
2 stops27h 45m
Multiple Airlines
Deal found 5/6![Multiple Airlines logo]()
$148
This Breeze Airways deal was found by Cheapflights users on 5/7. 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 Breeze Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2710:37 am
GSP
- PWM
1 stop3h 43m
Breeze Airways
Deal found 5/7![Breeze Airways logo]()
$150
This United Airlines deal was found by Cheapflights users on 5/6. 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 6/237:40 pm
GSP
- PWM
1 stop4h 11m
United Airlines
Deal found 5/6![United Airlines logo]()
$178
This Delta deal was found by Cheapflights users on 5/7. 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.
Wed 9/236:00 am
GSP
- PWM
1 stop5h 01m
Delta
Deal found 5/7![Delta logo]()
$183
This United Airlines deal was found by Cheapflights users on 5/7. 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.
Thu 9/246:55 pm
GSP
- PWM
1 stop4h 32m
United Airlines
Deal found 5/7![United Airlines logo]()
$188
This Southwest deal was found by Cheapflights users on 5/6. 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.
Tue 7/1412:50 pm
GSP
- PWM
2 stops10h 05m
Southwest
Deal found 5/6![Southwest logo]()
$189
This Delta deal was found by Cheapflights users on 5/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/225:16 pm
GSP
- PWM
1 stop5h 49m
Delta
Deal found 5/6![Delta logo]()
$204
This Delta deal was found by Cheapflights users on 5/7. 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.
Sun 7/1211:38 am
GSP
- PWM
1 stop6h 14m
Delta
Deal found 5/7![Delta logo]()
$209
This Southwest deal was found by Cheapflights users on 5/4. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2710:45 am
GSP
- PWM
2 stops10h 45m
Southwest
Deal found 5/4![Southwest logo]()
$219
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 (PWM). 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 May 9, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $163 (Kiwi.com) |
One-way from | $101 (Kiwi.com) |
Popular in | February |
Cheapest in | January |
Average price | $531 |
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 2,558,603 searches. Data last updated May 9, 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 - PWM
GSPPWM
Greenville
Mon 7/6
6:19 pm-10:38 pm
1 stop4h 19m
Portland
Fri 7/24
7:00 am-11:26 am
1 stop4h 26m
$325
GreenvillePortland
GSP - PWM
GSPPWM
Greenville
Tue 10/13
6:05 pm-11:06 pm
1 stop5h 01m
Portland
Sat 10/17
6:00 am-10:58 am
1 stop4h 58m
$365
GreenvillePortland
GSP - PWM
GSPPWM
Greenville
Thu 9/3
10:35 am-2:26 pm
1 stop3h 51m
Portland
Mon 9/7
7:00 am-11:26 am
1 stop4h 26m
$366
GreenvillePortland
GSP - PWM
GSPPWM
Greenville
Sun 9/27
10:37 am-2:20 pm
1 stop3h 43m
Portland
Sun 10/4
3:05 pm-7:19 pm
1 stop4h 14m
$379
GreenvillePortland
GSP - PWM
GSPPWM
Greenville
Thu 7/30
10:35 am-2:26 pm
1 stop3h 51m
Portland
Mon 8/3
7:00 am-11:26 am
1 stop4h 26m
$380
GreenvillePortland
GSP - PWM
GSPPWM
Greenville
Wed 6/3
6:00 am-10:23 am
1 stop4h 23m
Portland
Thu 6/25
6:00 am-10:59 am
1 stop4h 59m
$391
GreenvillePortland
GSP - PWM
GSPPWM
Greenville
Thu 5/28
12:35 pm-11:25 pm
2 stops10h 50m
Portland
Tue 6/2
3:55 pm-8:00 pm
1 stop4h 05m
$396
GreenvillePortland
GSP - PWM
GSPPWM
Greenville
Sat 10/3
7:00 am-2:30 pm
1 stop7h 30m
Portland
Wed 10/7
1:30 pm-8:10 pm
1 stop6h 40m
$407
GreenvillePortland
GSP - PWM
GSPPWM
Greenville
Fri 10/2
7:05 am-2:45 pm
1 stop7h 40m
Portland
Wed 10/7
7:30 am-6:35 pm
2 stops11h 05m
$412
GreenvillePortland
GSP - PWM
GSPPWM
Greenville
Tue 9/8
7:51 pm-11:59 pm
1 stop4h 08m
Portland
Sat 9/12
6:00 am-1:38 pm
1 stop7h 38m
$420
Showing 1-10 of 16 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 May.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Greenville-Portland, Maine flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Greenville-Portland, Maine flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Greenville-Portland, Maine flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Greenville-Portland, Maine 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, Maine 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-PWM
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, Maine?
The best time to book flights from Greenville to Portland, Maine is 71 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 Greenville to Portland, Maine?
Currently, January is the cheapest month in which you can book a flight from Greenville to Portland, Maine (average of $269). Flying from Greenville to Portland, Maine in February is currently the most expensive (average of $937). 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, Maine?
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 May 9, 2026.
See what other customers who have flown with Breeze Airways,Southwest, andDelta from Greenville to Portland have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
8.2
Overall
8.1
Crew
8.7
Entertainment
6.6
Food
6.6
Boarding
8.3
Reviews
1 / 18
4.0
OkayLisa,Mar 2026
ORF - JAX
Comfort
8.2
Overall
8.1
Crew
8.7
Entertainment
6.6
Food
6.6
Boarding
8.3
Reviews
1 / 18
4.0
OkayLisa,Mar 2026
ORF - JAX
Comfort
8.2
Overall
8.1
Crew
8.7
Entertainment
6.6
Food
6.6
Boarding
8.3
Reviews
1 / 18
4.0
OkayLisa,Mar 2026
ORF - JAX
Comfort
8.2
Overall
8.1
Crew
8.7
Entertainment
6.6
Food
6.6
Boarding
8.3
Reviews
1 / 18
4.0
OkayLisa,Mar 2026
ORF - JAX
Comfort
8.2
Overall
8.1
Crew
8.7
Entertainment
6.6
Food
6.6
Boarding
8.3
Reviews
1 / 18
4.0
OkayLisa,Mar 2026
ORF - JAX
Comfort
8.2
Overall
8.1
Crew
8.7
Entertainment
6.6
Food
6.6
Boarding
8.3
Reviews
1 / 18
4.0
OkayLisa,Mar 2026
ORF - JAX
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 locationsNorth Conway
Brunswick
Lewiston
Conway
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Greenville and Portland flights
Browse other Greenville and Portland flight options. Last updated on May 9, 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 May 9, 2026.
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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 May 9, 2026.
Top 5 airlines flying from Greenville to Portland
Discover the top 5 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 2,558,603 searches. Data last updated May 9, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$136 | Average$279 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$203 | Average$376 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$236 | Average$366 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$243 | Average$476 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$279 | Average$493 | FlexibilityNo cancel fee | On-time63% |