$146 Find Cheap Flights from Greenville to Ontario

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Greenville to Ontario departing on 1/16. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Ontario

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Greenville to Ontario, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Greenville to Ontario, as well as popular online travel agencies
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Flight Deals

Book Cheap Greenville to Ontario Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Greenville to Ontario 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 Greenville to Ontario

Sun, Jan 25 - Sun, Feb 1
Multiple Airlines Logo
6:45 pm - 2:40 pm
GSP
-
YYZ
19h 55m1 stop
Multiple Airlines Logo
8:30 pm - 8:58 am
YYZ
-
GSP
12h 28m1 stop
$264Multiple Airlines
Mon, Feb 9 - Wed, Feb 18
Multiple Airlines Logo
9:48 am - 11:20 pm
GSP
-
YYZ
13h 32m1 stop
Multiple Airlines Logo
8:30 pm - 4:27 pm
YYZ
-
GSP
19h 57m1 stop
$273Multiple Airlines
Fri, Jan 23 - Fri, Jan 30
Multiple Airlines Logo
9:49 pm - 8:11 pm
GSP
-
YYZ
22h 22m2 stops
Multiple Airlines Logo
7:10 am - 3:59 pm
YYZ
-
GSP
8h 49m1 stop
$289Multiple Airlines
Wed, Feb 18 - Sun, Feb 22
United Airlines Logo
6:12 am - 1:34 pm
GSP
-
YOW
7h 22m1 stop
United Airlines Logo
5:48 pm - 11:59 pm
YOW
-
GSP
6h 11m1 stop
$348United Airlines
Wed, Feb 18 - Sun, Feb 22
Air Canada Logo
6:12 am - 4:23 pm
GSP
-
YOW
10h 11m2 stops
Air Canada Logo
5:48 pm - 11:59 pm
YOW
-
GSP
6h 11m1 stop
$432Air Canada
Sat, Jan 24 - Sat, Jan 31
United Airlines Logo
6:35 am - 5:18 pm
GSP
-
YOW
10h 43m2 stops
United Airlines Logo
5:55 pm - 11:48 pm
YOW
-
GSP
5h 53m1 stop
$435United Airlines
Wed, Feb 18 - Sun, Feb 22
Air Canada Logo
6:30 am - 4:23 pm
GSP
-
YOW
9h 53m2 stops
Air Canada Logo
10:20 am - 11:59 pm
YOW
-
GSP
13h 39m2 stops
$444Air Canada
Tue, Jan 27 - Tue, Feb 3
American Airlines Logo
5:26 pm - 3:08 pm
GSP
-
YUL
21h 42m1 stop
American Airlines Logo
7:00 am - 11:57 pm
YUL
-
GSP
16h 57m1 stop
$452American Airlines
Tue, Jan 27 - Tue, Feb 3
Delta Logo
6:50 am - 6:37 pm
GSP
-
YUL
11h 47m2 stops
Delta Logo
2:15 pm - 10:44 pm
YUL
-
GSP
8h 29m1 stop
$511Delta
Wed, Mar 18 - Tue, Mar 24
Delta Logo
6:45 am - 11:37 am
GSP
-
YUL
4h 52m1 stop
Delta Logo
9:20 am - 5:41 pm
YUL
-
GSP
8h 21m1 stop
$551Delta
Booking Insights

KAYAK's insights & trends for Greenville to Ontario flights

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

How much is a round-trip flight from Greenville to Region of Ontario?

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Greenville to Ontario, 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 Greenville to Ontario is February, when tickets cost $174 (return) on average. On the other hand, the most expensive months are October and September, when the average cost of round-trip tickets is $706 and $661 respectively.

Good to know

Low seasonDecember
Cheapest flight$146
Best time to beat the crowds with an average 6% drop in price.
Most popular time to fly with an average 31% increase in price.
Flight from Greenville to Toronto

FAQs - booking Ontario flights

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

    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 Greenville to Ontario.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Greenville to Ontario 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 Greenville to Ontario?

    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 from Greenville to Ontario with an airline and back with another airline.

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

    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 from Greenville to Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from Greenville to Ontario

 
See real verified KAYAK customer reviews for airlines flying from Greenville to Ontario. 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 Greenville to Ontario? 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.
7.9
DeltaOverall score based on 8014 reviews
7.9Entertainment
7.9Comfort
7.3Food
8.1Boarding
8.5Crew
Airline reviews

The only thing nice I can say is the flight crew was really nice and apologetic about the situation. They shared as much information as they had and advised us on what we could do about missing connecting flights. The boarding process was so slow. The gate agent was working by herself and should have had someone working with her. It took almost an hour to board because she was trying to board a full flight of people and provide customer service to everyone who was flying standby and/or had questions. It was really chaotic. This didn't help the fact that we were delayed and folks were missing connections the longer it took.

4.0 OkayLaToya, Dec 2025
MCO - ATL
Read more Delta reviews

The only thing nice I can say is the flight crew was really nice and apologetic about the situation. They shared as much information as they had and advised us on what we could do about missing connecting flights. The boarding process was so slow. The gate agent was working by herself and should have had someone working with her. It took almost an hour to board because she was trying to board a full flight of people and provide customer service to everyone who was flying standby and/or had questions. It was really chaotic. This didn't help the fact that we were delayed and folks were missing connections the longer it took.

The gate attendants and the crew were terrible. Because of high winds, they needed to carry more fuel, so they had to get volunteers to take the next flight at 6 am the next day. They did a terrible job of it - our flight ended up taking off just under 3 hours of the scheduled time. I hope to never fly Delta again.

Did not realize internet screen was hidden between seats and no info printed!!!!

2 of the seats in row 31 the entertainment system was not working, and one seat the tray table did not go all the way down. Flight arrived early and departed on time which was great.

Very good flight crew and very nice people staff were incredible especially the gate agent

Waited at the usual crowded gate at DCA where one ends up standing up because there aren't enough seats.

The flight was delayed for about 2 hrs. Other than it, it was good.

Advertised fruit trays with cheese, but only snacks handed out!

The plant way delayed departing by 3 hours. It was an old airplane with broken seats and armrests. The bathroom made a hollering sound. A really crappy flight experience and travel day all around.

Flight delays both to Detroits and return flight . The flight to Detroit was associated with mechanical difficulty

Not United Airlines' fault. It's ORL airport's fault.

The flight was on time. I generally don’t drink or eat on short flights and the seats were good and the flight attendants were friendly. That’s all I expect

United overall experience is great these days. Airport experience was very organized. Staff on flight were great. App and information as good as it gets.

Very nice flight love the small aircraft. We had a wonderful flight attendant. Nice to see someone that really enjoys her job. Don't have her name but had a southern accent.

Seats in waiting area and on plane hard as rock. Fast internet on the flight was great! Crew was kind.

Not the fault of United—weather, reroute around weather, time sitting on tarmac, arrived couple hours late, too late for train into city necessitating a much pricier cab but weather…can’t be helped.

Flight was good but there are way to many announcements for credit cards etc.

I had no checked baggage but was required to hand over carry on baggage at the door of the plane. There was a lot of overboard space in the plane and I was one of the last ones. I ran to get my carry on but it was gone. I was given back at the plane door in Toronto, so the wait was not as long as it would have been at the carousel.

We had a layover from YVR to Denver. We bought 4 bottles of Absolut Vodka at the YVR Duty Free for $116.20, after going through security and American Customs Pre Clearance at YVR, Vancouver. When we landed in Denver, United put us behind the American Customs as well as TSA again for some reason. We were forced to go through American Customs and TSA again. TSA confiscated our rightfully owned Duty Free Absolut Vodka bottles. Because United incorrectly forced our flight behind American border and TSA again, we missed the connecting flight. After United put us on a later flight, we eventually arrived in Chicago very late, with hardly any sleep. I am looking for compensation from United for our incorrectly confiscated Absolut Vodka bottles worth $116.20, as well as compensation for incorrectly putting us behind American Customs and TSA again, causing us to miss our connecting flight, making us arrive extremely late in Chicago.

From the first moment you interact with United Airlines, you can expect nothing less but extreme frustration. The baggage handler at the bag drop seems completely unbothered by the presence of customers waiting in line. No help was extended to load the baggage whatsoever. And if any of your bags is overweight by 0.01 pound they will make you re-distribute everything in your suitcase just to play power trip. When it was time to board no help was extended to customers to locate their seats. Moreover. It was a chaotic mess at the gate when it was unclear who should board first and everyone just bunched up, trying to get on the plane. I am sure the crew was doing their best to perform their jobs while being paid their wages however it shouldn’t be that hard to smile once or twice when you’re in the business if serving customers. It is a shame for the United States of America to have a flagship carrier of such low caliber. Our flight was also delayed by about an hour and a half due to further delays prior to our inbound flight. Being someone who has travelled for both business and leisure in Asia, Europe, and South America I have never experienced such poor quality of service.

Better service. No food options, but we did get drinks and a cookie.

Boarding was organized and timely. Food was mediocre, especially for first class travel.

We were 4+ hours delayed. AA is absolutely obnoxious. They just kept pushing back the time to the point where we did not get into Vegas until after midnight when we were supposed to arrive like 845pm.

My last flight on 25 Dec, it’s Christmas Day, everyone happy and very good mood. I really enjoy traveling with Americans Airlines from Miami to Minneapolis my home town after long flight from lhe to Doha then Miami. Thank you again to make my travels comfortable and relaxed. Best regards

The boarding process needs to be fixed. The zone don't work, especially when there is hardly anyone in zones 3, 4,and 5, leaving the majority of the passengers backed up in the aisle, especially because passengers seated near the front are blocking passengers who are seated in the rear of the plane. It would also help if the size of carry on bags was more strictly enforced.

I requested a low sodium meal. Reason being, I take medicine for high blood pressure and I wear compression socks on long flights to help with leg swelling. Having less sodium in meals really helps me feel better on long flights. I received my initial low sodium meal after takeoff. Just before landing, the crew came through with the meal cart and offered me what was being served. I said no thank you and then noticed my low sodium meal in the meal cart, with my name and seat assignment on it. I motioned to the crew member, but he grabbed the meal cart and proceeded to move to the rear of the aircraft. He didn’t see me or other passengers who had attempted to get this attention. He was more concerned about completing meal service since we were due to land in under 45 minutes. I pressed the call light five times from my seat to receive help, but no crew member responded to me. So, I didn’t receive a second meal, one that I requested (the low sodium option). This led me to have a migraine from only eating one meal on an 11-hour flight. This is why I’m not a fan of flying US-based airlines overseas. The crew members continue to show the absolute worst customer service experience. I would not recommend flying American for overseas flights.

WiFi didn’t work the entire flight. Very disappointing. Minimal food and options - sadly the state of current affairs. All other aspects of the flight were fine.

Great flight - friendly and attentive team! Seats in coach were comfy, but a little cramped - but that is the case with all airlines ;)

The boarding by groups is pointless. The first two groups worked fine, but almost Noone boarded in goups three thru five leaving the vast majority boarding when group six was called. It defeated the purpose of spreading out the crowd.

I don’t know who decides what food to serve on these flights but I would be so embarrassed if I served this to anyone and call it food…

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

Information on your arrival and departure airports