$212 Find Cheap Flights from Greensboro to Ontario - 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 Greensboro to Ontario departing on 7/10. 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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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, Aug 11 - Thu, Aug 13
WestJet Logo
2:50 pm - 6:55 am
GSO
-
YYZ
16h 05m
2 stops
WestJet Logo
6:00 am - 3:32 pm
YYZ
-
GSO
9h 32m
1 stop
$503WestJet
Sat, Aug 8 - Sat, Aug 15
American Airlines Logo
6:24 am - 12:46 pm
GSO
-
YUL
6h 22m
1 stop
American Airlines Logo
1:07 pm - 5:02 pm
YUL
-
GSO
3h 55m
1 stop
$552American Airlines
Mon, Jul 27 - Fri, Jul 31
Multiple Airlines Logo
9:50 pm - 6:15 pm
GSO
-
YUL
20h 25m
2 stops
Multiple Airlines Logo
6:47 pm - 11:59 pm
YUL
-
GSO
5h 12m
1 stop
$562Multiple Airlines
Sat, Aug 15 - Sat, Aug 22
American Airlines Logo
1:40 pm - 11:29 pm
GSO
-
YYZ
9h 49m
1 stop
American Airlines Logo
7:29 am - 6:19 pm
YYZ
-
GSO
10h 50m
1 stop
$562American Airlines
Mon, Jul 27 - Fri, Jul 31
Multiple Airlines Logo
9:50 pm - 6:15 pm
GSO
-
YUL
20h 25m
2 stops
Multiple Airlines Logo
6:47 pm - 11:59 pm
YUL
-
GSO
5h 12m
1 stop
$563Multiple Airlines
Sat, Jul 11 - Tue, Jul 14
United Airlines Logo
6:00 am - 4:38 pm
GSO
-
YOW
10h 38m
1 stop
United Airlines Logo
7:30 pm - 11:36 pm
YOW
-
GSO
4h 06m
1 stop
$592United Airlines
Sat, Jul 11 - Tue, Jul 14
United Airlines Logo
6:00 am - 4:38 pm
GSO
-
YOW
10h 38m
1 stop
United Airlines Logo
7:30 pm - 11:36 pm
YOW
-
GSO
4h 06m
1 stop
$603United Airlines
Fri, Aug 28 - Sat, Sep 5
Delta Logo
6:20 pm - 9:10 am
GSO
-
YYZ
14h 50m
1 stop
Delta Logo
10:00 am - 6:34 pm
YYZ
-
GSO
8h 34m
1 stop
$621Delta
Sat, Jul 11 - Tue, Jul 14
Air Canada Logo
6:00 am - 4:38 pm
GSO
-
YOW
10h 38m
1 stop
Air Canada Logo
7:00 am - 4:57 pm
YOW
-
GSO
9h 57m
2 stops
$692Air Canada
Sat, Jul 11 - Tue, Jul 14
Air Canada Logo
6:00 am - 4:38 pm
GSO
-
YOW
10h 38m
1 stop
Air Canada Logo
9:05 am - 11:42 pm
YOW
-
GSO
14h 37m
2 stops
$697Air 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.

How much is a round-trip flight from Greensboro 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 Greensboro to Region of Ontario departing in August.

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 September, when tickets cost $189 (return) on average. On the other hand, the most expensive months are June and March, when the average cost of round-trip tickets is $810 and $709 respectively.

Good to know

Low seasonSeptember
Cheapest flight$212
Best time to beat the crowds with an average 69% drop in price.
Most popular time to fly with an average 18% increase in price.
Flight from Greensboro to Ottawa

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 3 airlines serving 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.
7.8
DeltaOverall score based on 8455 reviews
8.1Boarding
7.8Entertainment
7.8Comfort
8.5Crew
7.2Food
Airline reviews

Gate agent showed up 20 minutes before boarding and was not at all friendly. Had to take this flight due to the one on the day before being cancelled and any later options were already full with long standby lists. Despite having paid for Delta Comfort seats, Delta did not allow me (or anyone) to choose their seat. The agent assigned them for everyone just prior to boarding. Self seat selection was allowed on the original flight. Flight staff was great - very friendly.

2.0 MediocreAnonymous, Jun 2026
RDU - LGA
Read more Delta reviews

Gate agent showed up 20 minutes before boarding and was not at all friendly. Had to take this flight due to the one on the day before being cancelled and any later options were already full with long standby lists. Despite having paid for Delta Comfort seats, Delta did not allow me (or anyone) to choose their seat. The agent assigned them for everyone just prior to boarding. Self seat selection was allowed on the original flight. Flight staff was great - very friendly.

Two delays on two separate planes with parts they could not easily find and replace.

In ATL they have two sets of departure screens. Follow what is on your airline's departure board - the ATL Airport Authority departure board had completely incorrect details about the gate assignment for my flight, which would have made me miss boarding.

Flight was crowded and the woman sitting on my left was large & kept crouching in to my space. You need bigger seats or smaller passengers to fit into the seats you DO have! Snack were OK. Would appreciate if airlines had more savory rather than sweet snacks, thank you!

Delta is my preferred airline. I've traveled with them for years. On time in most cases, good communication, easy to use app. Most planes are pretty nice. I was on a CRJ 700/900 however, which was pretty badly aged inside and needed a refresh. No infotainment, unreliable wifi, best to download before boarding or bring a book. Food choices are really just snacks on this flight, nice variety but about what you'd expect. Great staff and prompt in departure and early arrival too. Overall quite satisfied.

After a 5 hour delay waiting at the gate (3 delays adding up) with no clear reason provided, we finally boarded flew 3/4 of the way to Toronto then were turned back to New York. As we neared New York, the pilot declared that it was his fault, something to do with timing and him not being allowed into the country???? How could the airline let his happen? They had hours to prepare and make sure they had a crew available for the flight! We ended up in Toronto a day late with no sleep.

Rode in a smaller plane and short trip meant no snacks, no free wifi or tv. It was only 30min flight so honestly wasn’t a big deal to lack these items.

We were forced to wait nearly 50 additional minutes before leaving the terminal.

I appreciated friendly service from check-in, to boarding, to in-flight amenities! Attendants were accommodating and helpful. Thank you! Elaine

Was a great smooth flight from Detroit to San Diego.

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

Hotter than Hades in August. Why, why do crews think that in the winter when we are already dressed for cold weather we need a cabin that is 82 degrees. Even the vents were blowing hot air.

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

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.

Our flight from Denver to Honolulu was delayed by close to 4 hrs. The only concession that was offered was a $15 food voucher to be used at the airport. They texted the vouchers after we boarded so there was now way to use them.the food they did serve was cold. I can’t recommend this airline.

The boarding on this Air Canada flight from Toronto to Barcelona was a complete mess. The ticket was written under United but they were actually Air Canada flights. We went from one end of the Toronto airport to the complete other side.

It was quite noisy on the flight for a night flight.

Check in for 5am flight at RDU was hampered by American check in counters being seriously understaffed , was told even supervisor called out. Took so long in line for special services check in that we missed our 5am departure even after arriving at 3:30am. Had to be rescheduled to later flight from Charlotte to St Thomas.

Awfully rude American worker at door when we started boarding flight. Then, walk into a blazing hot airplane with no air conditioning until twenty minutes into the flight. Free entertainment was non existent! My husband, along with the fellow passenger in our row, and I could not get entertainment to work, no WIFI! Really?? Been flying American a long time. Was very disappointed.

Two hours delay, probably one hour because they didn’t bring catering and they had to bring water in board. There a change of aircraft. But delays galore at CLT so it must be a CLT and/or AA operation issue. The 1 hr additional delays because nobody could bring 2 packs of water sooner is probably the best example of this airline operates

Flight was late and boarding was confusing because gate changed and I didn’t get a notification

Awful. They won’t help me with anything. I booked on American but they abdicated to Iberia. The ticket was overpriced. Everything negative

Was a normal flight but it was delayed, and there wasn't an explanation.

Boarding was disorganized and delayed because they overbooked and wanted people to give up seats then further delayed due to an issue with the plane. They did not load my bag and it took a day for them to return it. Flight attendant was lovely and the only positive thing about this trip.

a321 business class not up to transcontinental & international flight standards

Delay of 30 minutes, but most of time recovered in flight. Lots of overhead storage, so roller bags could be kept on board and not checked.

Loved the leg room but hate I had to pay to get it!!

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

Information on your arrival and departure airports