HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Ontario

$149+ Cheap flights from Greensboro to Ontario (GSO - ONT)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/29. Fares are subject to change and may not be available on all flights or dates of travel.
GSO — ONT
Apr 30 — May 71
Wed 4/30
Wed 5/7
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

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

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 April 25, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$309
(Delta)

One-way from

$149
(Delta)

Popular in

February

Cheapest in

January

Average price

$486
Provider with most accurate pricing for Greensboro/H. Point-Ontario flight deals.
Search Deals
Provider most trusted by Cheapflights users for Greensboro/H. Point-Ontario flights.
Search Deals
From Greensboro/H. Point to Ontario
Search Deals
One-way flight from Greensboro/H. Point to Ontario
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($111 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 10% potential price decrease ($47 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
Search Deals

Find flight deals from Greensboro to Ontario

Cheapest flights from Greensboro to Ontario
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 April 25, 2025.

This Delta deal was found by Cheapflights users on 4/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/74:59 pmGSO - ONT
1 stop9h 09mDelta
Tue 6/1010:05 pmONT - GSO
1 stop8h 31mDelta
Deal found 4/25$309
This American Airlines deal was found by Cheapflights users on 4/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/35:34 pmGSO - ONT
1 stop7h 24mAmerican Airlines
Fri 6/612:59 amONT - GSO
1 stop7h 52mAmerican Airlines
Deal found 4/25$334
This United Airlines deal was found by Cheapflights users on 4/25. 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.
Mon 8/185:32 pmGSO - ONT
1 stop7h 39mUnited Airlines
Sat 8/237:00 amONT - GSO
1 stop6h 47mUnited Airlines
Deal found 4/25$409
This Alaska Airlines deal was found by Cheapflights users on 4/25. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/2612:06 pmGSO - ONT
2 stops14h 53mAlaska Airlines
Wed 11/126:00 amONT - GSO
2 stops13h 00mAlaska Airlines
Deal found 4/25$444

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 2,558,603 searches. Data last updated April 25, 2025.
Use the filters below to find and compare flights from Greensboro to Ontario that are best for you.

Fly from

Greensboro

Fly to

Ontario

Route

Depart

Return

Price

GreensboroOntario

GSO - ONT

GSOONT

Greensboro/H. Point

Sat 6/7

4:59 pm-11:08 pm

1 stop9h 09m

Ontario

Tue 6/10

10:05 pm-9:36 am

1 stop8h 31m

$309

GreensboroOntario

GSO - ONT

GSOONT

Greensboro/H. Point

Tue 6/3

5:34 pm-9:58 pm

1 stop7h 24m

Ontario

Fri 6/6

12:59 am-11:51 am

1 stop7h 52m

$334

GreensboroOntario

GSO - ONT

GSOONT

Greensboro/H. Point

Mon 8/18

5:32 pm-10:11 pm

1 stop7h 39m

Ontario

Sat 8/23

7:00 am-4:47 pm

1 stop6h 47m

$409

GreensboroOntario

GSO - ONT

GSOONT

Greensboro/H. Point

Wed 10/15

7:35 am-6:17 pm

2 stops13h 42m

Ontario

Wed 10/22

6:55 pm-10:56 am

2 stops13h 01m

$549

GreensboroOntario

GSO - ONT

GSOONT

Greensboro/H. Point

Thu 5/29

6:45 am-11:08 am

1 stop7h 23m

$149

GreensboroOntario

GSO - ONT

GSOONT

Greensboro/H. Point

Sun 7/13

6:04 pm-11:55 pm

1 stop8h 51m

$235

GreensboroOntario

GSO - ONT

GSOONT

Greensboro/H. Point

Thu 5/29

10:33 am-5:25 pm

2 stops9h 52m

$240

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/25

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 April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Greensboro-Ontario flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Greensboro-Ontario flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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.
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, August is the cheapest month in which you can book a flight from Greensboro to Ontario (average of $246). Flying from Greensboro to Ontario in March is currently the most expensive (average of $328). 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.

What is the cheapest time of day to fly from GSO to ONT?

Find hourly flight availability from Greensboro to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 25, 2025.

It’s typically best to fly out from Greensboro to Ontario in the evening. Doing so could potentially save you 21% on the flight price compared to flying in the morning, which is usually more expensive.

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

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 April 25, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Delta and United Airlines from Greensboro to Ontario to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,928 reviews

Boarding

8.2

Food

7.1

Overall

8.0

Entertainment

7.1

Comfort

7.9

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Alaska Airlines
8.0
Very good
9,928 reviews
Alaska Airlines
8.0
Very good
9,928 reviews

Boarding

8.2

Food

7.1

Overall

8.0

Entertainment

7.1

Comfort

7.9

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Delta
8.0
Very good
7,920 reviews
Alaska Airlines
8.0
Very good
9,928 reviews

Boarding

8.2

Food

7.1

Overall

8.0

Entertainment

7.1

Comfort

7.9

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
United Airlines
7.4
Good
8,685 reviews
Alaska Airlines
8.0
Very good
9,928 reviews

Boarding

8.2

Food

7.1

Overall

8.0

Entertainment

7.1

Comfort

7.9

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,928 reviews

Boarding

8.2

Food

7.1

Overall

8.0

Entertainment

7.1

Comfort

7.9

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

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.

  • What are the cheapest airlines flying from Greensboro to Ontario round-trip?

    According to our current data, Delta ($309), American Airlines ($334), and United Airlines ($409) offers the cheapest pricing from Greensboro to Ontario. Delta is priced at 35% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Greensboro to Ontario one-way?

    One-way options have recently been found by users for as low as $149 on Delta. Other airlines that offer cheap prices include American Airlines from $235 and United Airlines from $240 one-way.

  • Can I find deals for flights from Greensboro to Ontario that include hotel bookings?

    Yes. In addition to deals on Greensboro to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Greensboro to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Greensboro to Ontario.

  • Can I find deals for business class flights from Greensboro to Ontario?

    Yes. Cheapflights offers flight deals from Greensboro to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Greensboro to Ontario?

    Currently, August is the cheapest month in which you can book a flight from Greensboro to Ontario (average of $246). Flying from Greensboro to Ontario in March is currently the most expensive (average of $328). 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Greensboro to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
Raleigh to Las Vegas flights
Raleigh to Los Angeles flights
Charlotte to Las Vegas flights
Raleigh to San Francisco flights
Charlotte to San Francisco flights
Charlotte to San Diego flights
Norfolk to Las Vegas flights
Charlotte to Los Angeles flights
Greensboro to Las Vegas flights
Raleigh to San Diego flights
Charlotte to Ontario flights
Raleigh to Ontario flights
Charlotte to Burbank flights
Norfolk to Los Angeles flights
Charlotte to Santa Ana flights
Knoxville to San Francisco flights
Wilmington to Las Vegas flights
Raleigh to Santa Ana flights
Asheville to Los Angeles flights
Myrtle Beach to Las Vegas flights
Charlotte to Sacramento flights
Raleigh to Burbank flights
Norfolk to San Diego flights
Greensboro to Los Angeles flights
Raleigh to San Jose flights
Knoxville to Las Vegas flights
Knoxville to Los Angeles flights
Asheville to Las Vegas flights
Norfolk to San Francisco flights
Charlotte to Oakland flights
Norfolk to Ontario flights
Raleigh to Sacramento flights
Asheville to San Francisco flights
Knoxville to Santa Ana flights
Knoxville to Reno flights
Charlotte to Reno flights
Knoxville to Ontario flights
Greensboro to San Diego flights
Norfolk to Santa Ana flights
Charlotte to San Jose flights
Raleigh to Oakland flights
Raleigh to Reno flights
Asheville to San Diego flights
Greensboro to San Francisco flights
Fayetteville to Las Vegas flights
Raleigh to Medford flights
Raleigh to Long Beach flights
Knoxville to Sacramento flights
Greensboro to Santa Ana flights

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 2,558,603 searches. Data last updated April 25, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$252Average$444FlexibilityNo cancel feeOn-time71%
DeltaCheapest$296Average$423FlexibilityNo cancel feeOn-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.