$314+ Cheap flights from Greensboro to Ontario (GSO - ONT)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/14. Fares are subject to change and may not be available on all flights or dates of travel.
GSO — ONT
Nov 24 — Dec 11
Round-trip
1 adult, Economy
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Find cheap flights from Greensboro to Ontario with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Greensboro to Ontario
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Cheapest flights from Greensboro to OntarioExplore the most affordable flight options available from Greensboro to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 25, 2026.
Explore the most affordable flight options available from Greensboro to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 25, 2026.
This United Airlines deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/176:15 am -
2 stops9h 18m
Tue 11/246:00 am -
2 stops14h 59m
Deal found 10/20![United Airlines logo]()
$471
This American Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/164:35 pm -
1 stop10h 13m
Wed 1/66:00 am -
1 stop7h 05m
Deal found 10/21![American Airlines logo]()
$479
This United Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1811:40 am -
1 stop10h 07m
Wed 11/259:25 am -
2 stops11h 19m
Deal found 10/21![United Airlines logo]()
$506
This United Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/53:00 pm -
2 stops10h 48m
Mon 11/96:37 pm -
2 stops12h 54m
Deal found 10/21![United Airlines logo]()
$509
This American Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/164:35 pm -
1 stop10h 13m
Mon 12/2110:10 pm -
1 stop7h 19m
Deal found 10/21![American Airlines logo]()
$532
This American Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/187:00 am -
1 stop7h 52m
Wed 11/2512:45 pm -
1 stop6h 41m
Deal found 10/21![American Airlines logo]()
$537
This American Airlines deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1811:59 am -
2 stops12h 56m
Wed 12/210:32 am -
1 stop8h 47m
Deal found 10/24![American Airlines logo]()
$540
This United Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/1610:35 am -
2 stops13h 03m
Mon 12/2111:52 pm -
2 stops11h 32m
Deal found 10/21![United Airlines logo]()
$542
This United Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/246:00 am -
2 stops14h 46m
Sat 11/77:00 am -
1 stop7h 02m
Deal found 10/21![United Airlines logo]()
$552
This United Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/126:15 am -
2 stops14h 41m
Sat 11/147:00 am -
1 stop7h 02m
Deal found 10/21![United Airlines logo]()
$554
Best flights from Greensboro to OntarioDiscover carefully curated flight deals from Greensboro to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 25, 2026.
Discover carefully curated flight deals from Greensboro to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 25, 2026.
This United Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/186:00 am -
2 stops12h 33m
Wed 11/259:25 am -
2 stops11h 19m
Deal found 10/21![United Airlines logo]()
$471
This American Airlines deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/187:00 am -
1 stop7h 52m
Wed 12/210:30 pm -
1 stop7h 06m
Deal found 10/24![American Airlines logo]()
$537
This United Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/1610:35 am -
2 stops13h 03m
Mon 12/2111:52 pm -
2 stops11h 32m
Deal found 10/21![United Airlines logo]()
$542
This United Airlines deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/126:15 am -
2 stops14h 41m
Sat 11/147:00 am -
1 stop7h 02m
Deal found 10/22![United Airlines logo]()
$554
This United Airlines deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/186:00 am -
2 stops12h 33m
Wed 12/26:40 pm -
2 stops12h 20m
Deal found 10/24![United Airlines logo]()
$559
This United Airlines deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/2612:05 pm -
2 stops10h 56m
Fri 2/56:37 pm -
2 stops13h 31m
Deal found 10/20![United Airlines logo]()
$559
This United Airlines deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/2012:05 pm -
2 stops11h 55m
Sun 1/246:37 pm -
2 stops13h 31m
Deal found 10/20![United Airlines logo]()
$559
This United Airlines deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/2612:05 pm -
2 stops11h 55m
Tue 2/25:00 am -
2 stops11h 03m
Deal found 10/20![United Airlines logo]()
$559
This United Airlines deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/276:00 am -
2 stops14h 35m
Wed 3/35:00 am -
2 stops13h 43m
Deal found 10/24![United Airlines logo]()
$559
Last-minute flights from Greensboro to OntarioDiscover last-minute flight deals from Greensboro to Ontario. Data last updated October 25, 2026 and is based on user searches.
Discover last-minute flight deals from Greensboro to Ontario. Data last updated October 25, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/246:00 am -
2 stops14h 46m
Sat 11/77:00 am -
1 stop7h 02m
Deal found 10/21![United Airlines logo]()
$552
This United Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/53:00 pm -
2 stops10h 48m
Mon 11/96:37 pm -
2 stops12h 54m
Deal found 10/21![United Airlines logo]()
$509
This United Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/126:15 am -
2 stops14h 41m
Sat 11/147:00 am -
1 stop7h 02m
Deal found 10/21![United Airlines logo]()
$554
This United Airlines deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/176:15 am -
2 stops9h 18m
Tue 11/246:00 am -
2 stops14h 59m
Deal found 10/20![United Airlines logo]()
$471
This United Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1811:40 am -
1 stop10h 07m
Wed 11/259:25 am -
2 stops11h 19m
Deal found 10/21![United Airlines logo]()
$506
This American Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/187:00 am -
1 stop7h 52m
Wed 11/2512:45 pm -
1 stop6h 41m
Deal found 10/21![American Airlines logo]()
$537
This American Airlines deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1811:59 am -
2 stops12h 56m
Wed 12/210:32 am -
1 stop8h 47m
Deal found 10/24![American Airlines logo]()
$540
This United Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/186:00 am -
2 stops12h 33m
Wed 12/26:40 pm -
2 stops12h 20m
Deal found 10/21![United Airlines logo]()
$559
One-way flights from Greensboro to OntarioSearch for one-way flight options from Greensboro to Ontario. Find affordable one-way fares based on user searches. Data last updated October 25, 2026.
Search for one-way flight options from Greensboro to Ontario. Find affordable one-way fares based on user searches. Data last updated October 25, 2026.
This Delta deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/145:01 pm -
1 stop7h 54m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/24![Delta logo]()
$314
This Delta deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/172:43 pm -
1 stop9h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![Delta logo]()
$344
This United Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/186:15 am -
2 stops14h 46m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![United Airlines logo]()
$349
This United Airlines deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/1410:35 am -
2 stops13h 03m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/24![United Airlines logo]()
$384
This United Airlines deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/276:15 am -
2 stops14h 41m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![United Airlines logo]()
$435
This United Airlines deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/76:00 am -
2 stops12h 33m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![United Airlines logo]()
$444
This American Airlines deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/171:43 pm -
2 stops12h 14m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![American Airlines logo]()
$445
This Delta deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/296:00 am -
1 stop7h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![Delta logo]()
$470
This Delta deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/26:00 am -
1 stop7h 04m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/24![Delta logo]()
$480
This United Airlines deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/411:40 am -
1 stop10h 07m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![United Airlines logo]()
$486
This Delta deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/236:00 am -
1 stop7h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![Delta logo]()
$490
This United Airlines deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/316:00 am -
2 stops9h 33m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![United Airlines logo]()
$491
Find flight deals from Greensboro to Ontario
Discover tips and strategies to find the most affordable flight options for your journey from Greensboro (GSO) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 25, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $471 (United Airlines) |
One-way from | $314 (Delta) |
Popular in | September |
Cheapest in | March |
Average price | $548 |
Cheapflights Fare Finder
Customize your flight search to find flights from Greensboro to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated October 25, 2026.
Use the filters below to find and compare flights from Greensboro to Ontario that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
GreensboroOntario
GSO Greensboro/H. Point - ONT Ontario
GSOONT
Greensboro/H. Point
Mon 12/14
5:01 pm-9:55 pm
1 stop7h 54m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$314
GreensboroOntario
GSO Greensboro/H. Point - ONT Ontario
GSOONT
Greensboro/H. Point
Tue 11/17
7:00 am-1:32 pm
1 stop9h 32m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$344
GreensboroOntario
GSO Greensboro/H. Point - ONT Ontario
GSOONT
Greensboro/H. Point
Wed 11/18
7:00 am-11:52 am
1 stop7h 52m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$344
GreensboroOntario
GSO Greensboro/H. Point - ONT Ontario
GSOONT
Greensboro/H. Point
Tue 11/17
2:43 pm-8:54 pm
1 stop9h 11m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$344
GreensboroOntario
GSO Greensboro/H. Point - ONT Ontario
GSOONT
Greensboro/H. Point
Wed 11/18
11:40 am-8:15 pm
2 stops11h 35m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$349
GreensboroOntario
GSO Greensboro/H. Point - ONT Ontario
GSOONT
Greensboro/H. Point
Tue 11/17
11:40 am-8:51 pm
2 stops12h 11m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$349
GreensboroOntario
GSO Greensboro/H. Point - ONT Ontario
GSOONT
Greensboro/H. Point
Fri 11/27
6:15 am-5:56 pm
2 stops14h 41m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$435
GreensboroOntario
GSO Greensboro/H. Point - ONT Ontario
GSOONT
Greensboro/H. Point
Mon 12/7
7:34 am-4:56 pm
2 stops12h 22m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$445
GreensboroOntario
GSO Greensboro/H. Point - ONT Ontario
GSOONT
Greensboro/H. Point
Wed 11/18
6:00 am-3:33 pm
2 stops12h 33m
Ontario
Wed 11/25
9:25 am-11:44 pm
2 stops11h 19m
$471
GreensboroOntario
GSO Greensboro/H. Point - ONT Ontario
GSOONT
Greensboro/H. Point
Wed 11/4
6:00 am-3:33 pm
2 stops12h 33m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$491
Showing 1-10 of 20 resultsSorted by cheapest first
Compare providers for flights from Greensboro to Ontario
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Greensboro to Ontario in October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Greensboro-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Greensboro-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Greensboro-Ontario flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Greensboro-Ontario flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Greensboro-Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Greensboro to Ontario
Have a flexible travel schedule? Discover the best time to fly to Ontario from Greensboro with our price prediction graph.
GSO-ONT
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Greensboro to Ontario
What is the cheapest month to book a flight from Greensboro to Ontario?
Currently, March is the cheapest month in which you can book a flight from Greensboro to Ontario (average of $348). Flying from Greensboro to Ontario in September is currently the most expensive (average of $627). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How much does it cost to fly round-trip from Greensboro to Ontario?
Airfare is below average for this route at the moment.
Greensboro to Ontario flights typically cost between $492 and $670 in November.The cheapest round-trip price found within the last 5 days was $471 on United Airlines (Nov 17-Nov 24).
Reviews of airlines servicing Ontario
Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated October 25, 2026.
Read through reviews of airlines operating flights from Greensboro to Ontario, such as Delta and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.8
Food
7.2
Boarding
8.1
Overall
7.8
Comfort
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
TUS - LAX
Entertainment
7.8
Food
7.2
Boarding
8.1
Overall
7.8
Comfort
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
TUS - LAX
Entertainment
7.8
Food
7.2
Boarding
8.1
Overall
7.8
Comfort
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
TUS - LAX
Related info for your journey
Find useful and relevant information for your journey from Greensboro to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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Complete your trip
Complete your trip to Ontario by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Greensboro to Ontario by cabin class
Find flights from Greensboro to Ontario, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Other flights to Ontario
Explore flights to Ontario departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 25, 2026.
Greensboro and Ontario flights
Browse other Greensboro and Ontario flight options. Last updated on October 25, 2026.
Other flights from Greensboro
Browse through other flights departing from Greensboro. Flights are based on user searches made on Cheapflights and were last updated on October 25, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 2 airlines flying from Greensboro to Ontario
Discover the top 2 airlines that operate flights from Greensboro to Ontario. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated October 25, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$348 | Average$434 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$384 | Average$583 | FlexibilityNo cancel fee | On-time71% |