GSO - ONT

$202 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 7/28. 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
$403
Typical prices: $425-$554
Delta
Wed 11/18Wed 12/2
GSO - ONT • 1 stop
Cheapest one-way
$202
Delta
Tue 7/28
GSO - ONT • 1 stop
Top airlines
Cheapest • from $403 (round-trip)
Best reviews • 7.8 score
Airline reviews
Airline reviews
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Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Greensboro and Ontario. You'll need at least 1 connection.
Insights
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Top layover airports
Cheapest • Avg $317 (round-trip)
Shortest trip • 7h 06m (one-way)
Insights
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Insights
Insights
When to travel
Cheapest • 28% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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We hope you love your trip to Ontario!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Greensboro to Ontario (GSO-ONT)

 
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

Wed, Nov 18 - Wed, Dec 2
Delta Logo
2:15 pm - 6:18 pm
GSO
-
ONT
7h 03m
1 stop
Delta Logo
12:00 pm - 11:54 pm
ONT
-
GSO
8h 54m
1 stop
$403Delta
Thu, Aug 20 - Tue, Sep 1
Delta Logo
4:30 pm - 9:52 pm
GSO
-
ONT
8h 22m
1 stop
Delta Logo
12:00 pm - 11:59 pm
ONT
-
GSO
8h 59m
1 stop
$405Delta
Thu, Aug 6 - Mon, Aug 10
American Airlines Logo
6:19 am - 11:43 am
GSO
-
ONT
8h 24m
1 stop
American Airlines Logo
7:05 am - 5:30 pm
ONT
-
GSO
7h 25m
1 stop
$407American Airlines
Wed, Dec 9 - Wed, Dec 23
Delta Logo
12:30 pm - 6:18 pm
GSO
-
ONT
8h 48m
1 stop
Delta Logo
12:00 pm - 9:57 pm
ONT
-
GSO
6h 57m
1 stop
$416Delta
Thu, Aug 20 - Tue, Sep 1
Delta Logo
2:50 pm - 6:30 pm
GSO
-
ONT
6h 40m
1 stop
Delta Logo
12:00 pm - 11:59 pm
ONT
-
GSO
8h 59m
1 stop
$421Delta
Sat, Oct 3 - Wed, Oct 7
American Airlines Logo
7:00 am - 1:25 pm
GSO
-
ONT
9h 25m
1 stop
American Airlines Logo
10:25 am - 10:33 pm
ONT
-
GSO
9h 08m
1 stop
$429American Airlines
Thu, Dec 10 - Tue, Dec 29
American Airlines Logo
7:00 am - 2:00 pm
GSO
-
ONT
10h 00m
1 stop
American Airlines Logo
6:10 am - 4:35 pm
ONT
-
GSO
7h 25m
1 stop
$434American Airlines
Thu, Aug 6 - Mon, Aug 10
American Airlines Logo
6:19 am - 11:43 am
GSO
-
ONT
8h 24m
1 stop
American Airlines Logo
12:33 pm - 10:16 pm
ONT
-
GSO
6h 43m
1 stop
$439American Airlines
Sat, Oct 3 - Wed, Oct 7
United Airlines Logo
2:55 pm - 10:59 pm
GSO
-
ONT
11h 04m
2 stops
United Airlines Logo
7:00 am - 11:42 pm
ONT
-
GSO
13h 42m
2 stops
$443United Airlines
Sat, Oct 3 - Wed, Oct 7
United Airlines Logo
2:55 pm - 10:59 pm
GSO
-
ONT
11h 04m
2 stops
United Airlines Logo
7:00 am - 11:42 pm
ONT
-
GSO
13h 42m
2 stops
$446United Airlines
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 October, where tickets cost $328 (return) on average. On the other hand, the most expensive months are February and June, where the average cost of round-trip tickets is $588 and $533 respectively.

Good to know

Low seasonJuly
Cheapest flight$202
Best time to beat the crowds with an average 7% drop in price.
Most popular time to fly with an average 13% increase in price.
Flight from Greensboro to Ontario

When to book flights from Greensboro to Ontario

Are your dates flexible? Find out the best times to travel from Greensboro to Ontario 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 Greensboro to Ontario

  • What is the cheapest flight from Greensboro to Ontario?

    In the last 5 days, the lowest price for a flight from Greensboro to Ontario was $202 for a one-way ticket and $403 for a round-trip.

  • Do I need a passport to fly between Greensboro and Ontario?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which airports will I be using when flying from Greensboro to Ontario?

    Greensboro airport is called Greensboro/H. Point and the only airport in Ontario is Ontario.

  • Which aircraft models fly most regularly from Greensboro to Ontario?

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

  • Which airline alliances offer flights from Greensboro to Ontario?

    SkyTeam, and oneworld are the airline alliances operating flights between Greensboro and Ontario, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from Greensboro to Ontario, Delta or American Airlines?

    The two airlines most popular with KAYAK users for flights from Greensboro to Ontario are Delta and American Airlines. With an average price for the route of $398 and an overall rating of 7.8, Delta is the most popular choice. American Airlines is also a great choice for the route, with an average price of $510 and an overall rating of 7.1.

  • 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 to Ontario from Greensboro 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 to Ontario with an airline and back to Greensboro with another airline. Booking your flights between Greensboro and ONT 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 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 to Ontario from Greensboro 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.
7.8
DeltaOverall score based on 8453 reviews
7.2Food
8.1Boarding
7.8Entertainment
7.8Comfort
8.5Crew
Airline reviews

Crew was real good, flight was smooth and came in early.

10.0 ExcellentAnonymous, Jun 2026
DTW - SAN
Read more Delta reviews

Crew was real good, flight was smooth and came in early.

Love me some Delta. One of the few airlines to recognize and support veterans. Easy boarding, flight was on time and arrived early and the flight attendants were excellent on this flight.

We sat on the runway for over an hour before departure. That was unwelcome.

Flight delayed four separate times. I’m now one hour hours late to landing.

worst flight ever from Delta, it got delayed and kept on delaying..

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.

Everything went smoothly, although the usual gripes about airline travel were still present: the boarding process is inefficient, the snack selection is limited, and so on. Since there was extra space on the flight, the gate agent rearranged many people's seats to put people on the aisles and windows, leaving the middle seats empty, as much as possible, which was pretty great.

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.

Was a great smooth flight from Detroit to San Diego.

Smooth flight. From the early boarding and all were on board before departure time and arrived early in ONT. Great crew. Thank you!!!!

Amazing I love American. I’ll never fly anyone else if I can help it.

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

Boarding was very efficient. Everyone got on board and we got on our way very quickly. It was frustrating that the entertainment app was not functioning properly. I was not able to activate some of the movies offered. The crew on this flight appears to be pretty grumpy. They had no smile on their faces. I felt like they were doing us a favor for being there.

Long 5 hour and 45 min flight and only one drink service and cookie snack

This flight didn’t happen because AA agents didn’t let us board the flight

Everything was great except for the wifi was junk. Crew was super friendly and helpful

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!!

It was fine. I didn't love the food but it was at least a real attempt at serving a meal, unlike my earlier flight from Nashville to Dallas.

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

Information on your arrival and departure airports