PDX - GSP

$185 Find Cheap Flights from Portland to Greenville - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Portland to Greenville departing on 8/17. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$369
Typical prices: $328-$438
United Airlines
Sat 9/26Wed 9/30
PDX - GSP • 1 stop
Cheapest one-way
$185
Typical prices: $208-$453
United Airlines
Mon 8/17
PDX - GSP • 1 stop
Top airlines
Cheapest • from $369 (round-trip)
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Portland and Greenville. You'll need at least 1 connection.
Insights
Insights
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Insights
Top layover airports
Cheapest • Avg $436 (round-trip)
Shortest trip • 7h 00m (one-way)
Insights
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Insights
When to book
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 38% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 29% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
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Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Portland to Greenville (PDX-GSP)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Portland to Greenville that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Portland to Greenville

Sat, Sep 26 - Wed, Sep 30
United Airlines Logo
11:30 pm - 9:58 am
PDX
-
GSP
7h 28m
1 stop
United Airlines Logo
6:20 am - 11:33 am
GSP
-
PDX
8h 13m
1 stop
$369United Airlines
Thu, Dec 31 - Sat, Jan 9
United Airlines Logo
11:52 pm - 9:43 am
PDX
-
GSP
6h 51m
1 stop
United Airlines Logo
5:41 pm - 11:12 pm
GSP
-
PDX
8h 31m
1 stop
$369United Airlines
Thu, Nov 12 - Tue, Nov 17
Delta Logo
11:20 pm - 10:11 am
PDX
-
GSP
7h 51m
1 stop
Delta Logo
5:30 am - 10:45 am
GSP
-
PDX
8h 15m
1 stop
$369Delta
Thu, Dec 31 - Sat, Jan 9
Delta Logo
7:00 am - 6:49 pm
PDX
-
GSP
8h 49m
1 stop
Delta Logo
3:42 pm - 10:26 pm
GSP
-
PDX
9h 44m
1 stop
$369Delta
Wed, Sep 16 - Wed, Sep 30
American Airlines Logo
6:00 am - 4:34 pm
PDX
-
GSP
7h 34m
1 stop
American Airlines Logo
5:24 pm - 11:23 pm
GSP
-
PDX
8h 59m
1 stop
$369American Airlines
Wed, Sep 2 - Wed, Sep 9
American Airlines Logo
6:27 am - 4:38 pm
PDX
-
GSP
7h 11m
1 stop
American Airlines Logo
5:24 pm - 11:23 pm
GSP
-
PDX
8h 59m
1 stop
$369American Airlines
Sat, Sep 26 - Wed, Sep 30
Southwest Logo
10:45 pm - 10:10 am
PDX
-
GSP
8h 25m
1 stop
Southwest Logo
11:00 am - 5:45 pm
GSP
-
PDX
9h 45m
2 stops
$374Southwest
Wed, Aug 26 - Wed, Sep 2
Southwest Logo
11:30 pm - 12:30 pm
PDX
-
GSP
10h 00m
2 stops
Southwest Logo
5:30 pm - 11:10 pm
GSP
-
PDX
8h 40m
2 stops
$379Southwest
Thu, Aug 20 - Mon, Aug 24
Multiple Airlines Logo
5:56 pm - 8:40 pm
PDX
-
GSP
23h 44m
1 stop
Multiple Airlines Logo
8:45 pm - 5:11 pm
GSP
-
PDX
23h 26m
2 stops
$460Multiple Airlines
Mon, Aug 17 - Fri, Aug 21
Multiple Airlines Logo
5:49 pm - 3:06 pm
PDX
-
GSP
18h 17m
2 stops
Multiple Airlines Logo
10:03 am - 11:35 am
GSP
-
PDX
28h 32m
1 stop
$489Multiple Airlines
Booking Insights

KAYAK's insights & trends for Portland to Greenville flights

Get data-powered insights and trends into flights from Portland to Greenville to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Portland to Greenville?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Portland to Greenville departing in September.

Flight prices are below average for this route right now.

Flights to Greenville from Portland usually cost between $376 and $686 in September.
The lowest price found in the past 5 days was $369 on American Airlines (Sep 2-Sep 9).

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Portland to Greenville, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Portland to Greenville is September, where tickets cost $382 (return) on average. On the other hand, the most expensive months are March and January, where the average cost of round-trip tickets is $742 and $698 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Portland to Greenville, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Portland to Greenville, you should book around 4 weeks before departure, which saves you about 38% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 23 weeks before departure.

Good to know

Low season

January

Cheapest flight

$185
Best time to beat the crowds but there is an average 30% increase in price.
Most popular time to fly and prices are also 29% lower on average.
Flight from Portland to Greenville

When to book flights from Portland to Greenville

Are your dates flexible? Find out the best times to travel from Portland to Greenville based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Portland to Greenville

  • What is the cheapest flight from Portland to Greenville?

    In the last 5 days, the lowest price for a flight from Portland to Greenville was $185 for a one-way ticket and $369 for a round-trip.

  • Do I need a passport to fly between Portland and Greenville?

    A passport is not required to fly from Portland to Greenville.

  • Which aircraft models fly most regularly from Portland to Greenville?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Portland to Greenville?

    Star Alliance, oneworld, and SkyTeam are the airline alliances operating flights between Portland and Greenville, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from Portland to Greenville, Southwest or Delta?

    The two airlines most popular with KAYAK users for flights from Portland to Greenville are Southwest and Delta. With an average price for the route of $587 and an overall rating of 8.0, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $422 and an overall rating of 7.8.

  • How does KAYAK find such low prices on flights from Portland to Greenville?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Portland to Greenville.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Portland to Greenville?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Greenville from Portland is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Portland to Greenville?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Greenville with an airline and back to Portland with another airline. Booking your flights between Portland and GSP can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Portland to Greenville?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Greenville from Portland up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 4 airlines serving from Portland to Greenville

 
See real verified KAYAK customer reviews for airlines flying from Portland to Greenville. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Portland to Greenville? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4228 reviews
7.0Food
8.1Boarding
7.5Entertainment
8.0Comfort
8.6Crew
Airline reviews

No wifi, seems to be very common with Southwest currently. Everything else was normal.

8.0 ExcellentSean, Jul 2026
HOU - LGB
Read more Southwest reviews

No wifi, seems to be very common with Southwest currently. Everything else was normal.

Poor customer service, no accommodation for passengers when the flight was delayed over 5 hours.

Friendly crew kept coming by to make sure all was ok, provide additional refreshments, etc.

No gluten free snacks. Seats felt worn or bare bones even though it was a new 737 MAX 8.

I'm glad it wasn't only 75% full because I could get a good seat

Check-in, Boarding and flight were smooth. All the employees and crew was very nice and funny. They gave the kids crayons and workbooks to keep them occupied which was a big win. I’ve flown Southwest many times and that’s the first time I’ve seen that and it is a great addition.

The Southwest employees (all two of them) were very nice and cheerful despite the fact the line to self-check a bag (simply drop it off) was hundreds of people long. Thank God I arrived early to the airport because I stood in this line for at least an hour. Once on the flight that had been delayed by an hour, we had no Wi-Fi and thus no entertainment. Finally, I hope the investor strong arm tactics against Southwest pay off in a short-term windfall to your C-Suite because the rest of you are screwed. I have been a faithful Southwest customer for 15 years due to everything you just got rid of. I'm flying to Idaho and Washington in October, both places I used to simply book with Southwest without a second thought now with Frontier (Washington) and United (Idaho) because they offer everything the "new" Southwest does but cheaper and at better times, destinations, etc. This really makes me sad...

It was really nice! I appreciate the gate attendant allowing families with small children to board early on in the process… that was very helpful! The internet service didn’t work with the app I was trying to use even though I paid the $8… other than that it was great! Oh and I should’ve asked for the whole cranberry cocktail can. That cup was about 2 sips…

I liked the boarding process with our loading group and numbers. I disliked that I couldn't guarantee our seats together. I didn't like that the Internet costs $8/ flight, but did love all the inflight options available through their app. I disliked no charging station at my seat for a 3+ hour flight.

Great! Although the flight was about 40 minutes delayed, the crew did a good job getting everything boarded quickly and efficiently.

We got stuck on the tarmac taxiing after landing early so we didn’t get off the plane until an hour later than we thought we would

Flight was delayed before take off and at landing. Baggage took 20 minutes. Flight crew would not serve full soft drink and had to ask multiple times before receiving water.

For some reason, TSA Atlanta didn’t have my bag on the flight on time and they don’t have to provide Delta a reason for that.

Bus to plane was delayed for no apparent reason and our luggage was still on the belt when they shut it off. Took about 20 minutes to turn it back on to get our luggage.

I haven’t flown economy in over 20 years but it was not bad. Room by my feet for my bag and seat was roomy enough. Surprised in a good way.

Second flight in a row where the entertainment system is broken. 5 hour long flight with no entertainment and flight attendants did not seem interested in resolving the matter. Very shocked to be treated this poorly considering I paid for a first class experience and have Diamond Medallion status.

The service from the flight attendants were of supreme quality. They greeted and treated everyone with a wide smile. This is totally absent nowadays. Kudos to them!!!!

My seat had no padding, it was literally plywood with a plastic cover. I could not change seats on my 10 hour flight. My excitement for this trip helped me deal with the pain.

The flights were on time- Great service Would have liked more options for food choices.

The brakes on the A220 are sensitive and uncomfortably grabby

the whole trip was smooth, and as comfortable as flying is these days. flight crew was friendly and very courteous and helpful.

Yet another flight in which beverage and snack service was skipped. Other that that, firmly mediocre. Landed early, to gate late due to congestion at the gates. Airline's fault or airports fault: unknown.

The flights were on time which was great give. It was holiday travel season and there’d been some weather issues. The only complaint and this is every time with United is the terrible seat design. The head rest is not built for comfort and having my neck bent forward for a cross country trip reminded me while I try not to take United flights as a rule.

This was a very average flight. The seat was out of alignment so more uncomfortable than usual. The cabin felt not well maintained. But I safely got where I needed to go.

We had a 90 minute delay due to equipment failure that was detected just before we took off. United rebooked my connecting flight.

Dinner was okay but the breakfast was not eatable on the flight San Francisco to Zurich.

This was a Lufthansa flight. Disappointing main meal. Very rough over Canada and arrival at FRA. IFE was almost unusable.

Poor seating comfort, seat cushion too thin, very uncomfortable. My luggage didi not make the flight due to equipment change. At least. United had it delivered the next day. I was without my toilet items for one day.

Flight cancelled because of the grounded 737s. United was good about it and got us onto a later Alaska Airlines flight to Oakland (not San Francisco as originally intended). Had to go through security again and my wife dropped her MacBook Pro, which broke, a $2,500 whoopsie. But we made it home.

I liked being upgraded to first class. The flight was a redeye, so I did sleep most of it.

Luggage took too long go get off plane in Knoxville. Was almost 45 minutes after the flight landed.

Very turbulent flight, no drinks, very little service, unorganized boarding, gate changed multiple times

Awful, tons of delays, I got into Chicago multiple hours late meaning I hit the very traffic I tried so desperately to avoid. Just empty apologies from American Airlines text alerts. Trash behavior from a trash airline.

The boarding was as always, the crew tried their best but not enough. The food was a disaster I had dietary restrictions that were half met because the company did not loaded the food for the flight. The entertainment screen was fine but content was not and also they removed the free messaging option from the flight and they charged 30 dollars for that crappy bandwidth. This flight is not worth the cost and the company is going down on quality.

As smooth as you can expect. Some issues with boarding because the previous plane took forever to deplane but overall, a good experience.

DFW-LHR Toilets not kept clean Too cramped. Aisles so narrow crew were constantly banging into people on the aisle seats. Even then, the carts used are reduced width. Other than that it was a decent flight on both legs

Excellent customer service at check in at Austin flight to DFW and excellent customer service from Karren in terminal B at DFW.

The flight itself was fine, but between the man in front of me putting his chair back, and the gentleman next to me who took up 50% of my seat, my back and neck are destroyed from the flight. I’m hoping for a better outcome flying back.

Flight boarded without pilots. Sat on plane for 3 hrs. after over an hour late boarding. Plane never took off. Had to deplane near midnight. Line for rebooking was 3 hours + long. I had to leave.

In-flight Wi-Fi didn’t work and the flight was 25 minutes late. The Embraer plane I was on was pretty old and the tray table was broken.

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

Information on your arrival and departure airports