$201 Find Cheap Flights from Greensboro 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 Greensboro to Ontario departing on 6/1. 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 Greensboro 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 Greensboro to Ontario, as well as popular online travel agencies
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Booking Insights
Flight Deals

Book Cheap Greensboro 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 Greensboro 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 Greensboro to Ontario

Tue, May 26 - Thu, May 28
United Airlines Logo
8:10 pm - 9:11 am
GSO
-
YOW
13h 01m
1 stop
United Airlines Logo
5:50 pm - 11:42 pm
YOW
-
GSO
5h 52m
1 stop
$424United Airlines
Mon, Jun 15 - Mon, Jun 22
Multiple Airlines Logo
9:36 pm - 4:45 pm
GSO
-
YYZ
19h 09m
1 stop
Multiple Airlines Logo
7:45 am - 3:48 pm
YYZ
-
GSO
8h 03m
1 stop
$484Multiple Airlines
Mon, Jun 15 - Fri, Jun 19
Multiple Airlines Logo
9:36 pm - 4:45 pm
GSO
-
YYZ
19h 09m
1 stop
Multiple Airlines Logo
7:45 am - 3:48 pm
YYZ
-
GSO
8h 03m
1 stop
$493Multiple Airlines
Tue, May 26 - Thu, May 28
United Airlines Logo
8:10 pm - 1:05 pm
GSO
-
YOW
16h 55m
2 stops
United Airlines Logo
6:00 am - 2:20 pm
YOW
-
GSO
8h 20m
1 stop
$513United Airlines
Tue, May 26 - Thu, May 28
United Airlines Logo
8:10 pm - 1:05 pm
GSO
-
YOW
16h 55m
2 stops
United Airlines Logo
5:05 am - 4:57 pm
YOW
-
GSO
11h 52m
2 stops
$526United Airlines
Wed, May 27 - Mon, Jul 6
Delta Logo
6:00 am - 1:40 pm
GSO
-
YYZ
7h 40m
1 stop
Delta Logo
10:00 am - 6:22 pm
YYZ
-
GSO
8h 22m
1 stop
$530Delta
Sat, Jun 13 - Tue, Jun 16
American Airlines Logo
1:40 pm - 11:23 pm
GSO
-
YYZ
9h 43m
1 stop
American Airlines Logo
1:15 pm - 9:51 pm
YYZ
-
GSO
8h 36m
1 stop
$532American Airlines
Thu, May 28 - Tue, Jun 2
American Airlines Logo
7:30 am - 5:44 pm
GSO
-
YYZ
10h 14m
1 stop
American Airlines Logo
11:39 am - 9:51 pm
YYZ
-
GSO
10h 12m
1 stop
$537American Airlines
Fri, Jul 3 - Sat, Jul 11
Delta Logo
2:19 pm - 11:43 pm
GSO
-
YYZ
9h 24m
1 stop
Delta Logo
6:00 am - 6:30 pm
YYZ
-
GSO
12h 30m
1 stop
$544Delta
Mon, Aug 31 - Wed, Sep 2
Air Canada Logo
2:43 pm - 9:56 pm
GSO
-
YOW
7h 13m
1 stop
Air Canada Logo
6:00 am - 2:17 pm
YOW
-
GSO
8h 17m
2 stops
$667Air Canada
Booking Insights

KAYAK's insights & trends for Greensboro to Ontario flights

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Greensboro 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 Greensboro to Ontario is April, when tickets cost $153 (return) on average. On the other hand, the most expensive months are August and March, when the average cost of round-trip tickets is $800 and $709 respectively.

Good to know

Low seasonSeptember
Cheapest flight$201
Best time to beat the crowds with an average 70% drop in price.
Most popular time to fly and prices are also 23% lower on average.
Flight from Greensboro to Toronto

FAQs - booking Ontario flights

  • How does KAYAK find such low prices on flights from Greensboro 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 Greensboro to Ontario.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Greensboro 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 Greensboro 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 Greensboro 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 Greensboro 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 Greensboro 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 airlines flying from Greensboro to Ontario

 
See real verified KAYAK customer reviews for airlines flying from Greensboro 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 Greensboro 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.
7.4
United AirlinesOverall score based on 9701 reviews
6.6Food
8.1Crew
7.7Boarding
7.3Comfort
7.1Entertainment
Airline reviews

I didn’t have a seat assignment and my seat was very dirty on the flight from Frankfurt to Budapest.

6.0 GoodKinga, May 2026
RDU - FRA
Read more United Airlines reviews

I didn’t have a seat assignment and my seat was very dirty on the flight from Frankfurt to Budapest.

Some crew were unfriendly or in some cases just straight up rude.

The flight was significantly delayed. The inbound flight from EWR was delayed departing because of mechanical problems. My original departure from CLT was 5:28 pm but due to the delay of the inbound flight, after arrival, deplaning, cleaning, boarding, we did not push back from the gate until 9:00 pm. Once in the air, the flight was smooth and what was originally supposed to be an arrival in ORD at 7:30 pm local time turned out to be 9:35 pm.

Putting people that close to the bathroom, where you have to look into the bathroom as people are exiting and entering was not great and the smell was also not great. I know the airlines are desperate for more chairs, but that seat is a crime.

My bags were misplaced!!! Im in a foreign country with no bags

one staffer was frustrated (it happen); the flight was late and the pilot mentioned they'll make amend but the snacks were the same, other than that the aircraft was clean and everything went smooth, no complaints

ticket agent lady wás very helpful , she arranged wheel chair for my elderly mother

Entertainment kept turning itself off. Gave up on watching a movie.

Wifi took a while to kick in and we had a maintenance issue that took over 40 mins at the gate in Washington before pulling back

Bad food, bad service, cold cabin with no additional blankets when asked for (they told me they don’t provide additional blankets). I’m a frequent traveler and this is one of the worst companies I traveled with (by the way I thought that I booked my ticket with Lufthansa but I didn’t see that the flights were handled by United).

STOP MAKING THE SEATING SO CRAMPED. WE NEED A PASSENGER BILL OF RIGHTS!

Flight was delayed an no one cares, or try to help passengers to get the conexión.

Had to wait for a gate for a long time, then waited on the run way for a long time before leaving. The actual flights part was good.

Airlines should be prohibited from using the seats they get away with.

Got home at 3am after deboarding the plane. No compensation offered by American

The "on the ground" A/C was not working. It was so hot while waiting to get in the air, a passenger from the rear of the plan declared "I just can't!" and waited in the gangway until time to close the doors. It was miserable. But the crew were champs and had an amazing attitude. I know they were as miserable as we were but didn't let that affect their performance.

When I booked my flight a month ago - I selected a seat. That seat was NOT the one I ended up with when I checked into my flight the day before. This is the second time this has occurred. So, I checked my next flight on Wednesday and Thursday and no seat was assigned. Poor, very poor customer service.

Cleared standby and gave up my seat. Terrible policy and boarding experience

Message about flight cancelation was received late due to being in the air. No explanation, just canceled and booked on morning flight. We had to stay in the airport overnight because there was no transportation offered to get to the hotel that AA had available. Actual inflight was fine.

Ceiling fell down and had to have maintenance come and duct tape it up. No WiFi on the flight.

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

Information on your arrival and departure airports