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$294 Cheap Flights from Ontario Intl. Airport (ONT) to Greensboro (GSO)

View $294 flight on Wed, Dec 23, 2026Opens in a new window

Popular airlines from Ontario Intl. Airport (ONT) to Piedmont Triad Intl. Airport (GSO)

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Cheap Flights from Ontario Intl. Airport to Greensboro (ONT-GSO)

Prices were available within the past 7 days and start at $294 for one-way flights and $399 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sat, Oct 3 - Sat, Oct 10
ONT
Ontario
GSO
Greensboro
$399 Roundtrip, found 18 hours ago
$399
Roundtrip
found 18 hours ago
Select United flight, departing Sat, Oct 3 from Ontario to Greensboro, returning Sat, Oct 10, priced at $399 found 18 hours ago
United
Sat, Oct 3 - Sat, Oct 10
ONT
Ontario
GSO
Greensboro
$404 Roundtrip, found 18 hours ago
$404
Roundtrip
found 18 hours ago
Select United flight, departing Sat, Oct 3 from Ontario to Greensboro, returning Sat, Oct 10, priced at $404 found 18 hours ago
United
Sat, Oct 24 - Sat, Nov 14
ONT
Ontario
GSO
Greensboro
$409 Roundtrip, found 2 days ago
$409
Roundtrip
found 2 days ago
Select United flight, departing Sat, Oct 24 from Ontario to Greensboro, returning Sat, Nov 14, priced at $409 found 2 days ago
American Airlines
Tue, Feb 2 - Tue, Feb 9
ONT
Ontario
GSO
Greensboro
$439 Roundtrip, found 5 hours ago
$439
Roundtrip
found 5 hours ago
Select American Airlines flight, departing Tue, Feb 2 from Ontario to Greensboro, returning Tue, Feb 9, priced at $439 found 5 hours ago
United
Wed, Jan 6 - Wed, Jan 13
ONT
Ontario
GSO
Greensboro
$449 Roundtrip, found 9 hours ago
$449
Roundtrip
found 9 hours ago
Select United flight, departing Wed, Jan 6 from Ontario to Greensboro, returning Wed, Jan 13, priced at $449 found 9 hours ago
Delta
Tue, Feb 2 - Tue, Feb 9
ONT
Ontario
GSO
Greensboro
$459 Roundtrip, found 5 hours ago
$459
Roundtrip
found 5 hours ago
Select Delta flight, departing Tue, Feb 2 from Ontario to Greensboro, returning Tue, Feb 9, priced at $459 found 5 hours ago
United
Sat, Oct 24 - Sat, Nov 14
ONT
Ontario
GSO
Greensboro
$460 Roundtrip, found 2 days ago
$460
Roundtrip
found 2 days ago
Select United flight, departing Sat, Oct 24 from Ontario to Greensboro, returning Sat, Nov 14, priced at $460 found 2 days ago
United
Wed, Mar 24 - Wed, Mar 31
ONT
Ontario
GSO
Greensboro
$462 Roundtrip, found 22 hours ago
$462
Roundtrip
found 22 hours ago
Select United flight, departing Wed, Mar 24 from Ontario to Greensboro, returning Wed, Mar 31, priced at $462 found 22 hours ago
United
Sat, Oct 3 - Sat, Oct 10
ONT
Ontario
GSO
Greensboro
$470 Roundtrip, found 18 hours ago
$470
Roundtrip
found 18 hours ago
Select United flight, departing Sat, Oct 3 from Ontario to Greensboro, returning Sat, Oct 10, priced at $470 found 18 hours ago
Alaska Airlines
Wed, Mar 24 - Wed, Mar 31
ONT
Ontario
GSO
Greensboro
$793 Roundtrip, found 22 hours ago
$793
Roundtrip
found 22 hours ago
Select Alaska Airlines flight, departing Wed, Mar 24 from Ontario to Greensboro, returning Wed, Mar 31, priced at $793 found 22 hours ago

Alternative airports near Greensboro

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Piedmont Triad Intl. GSO. Cheapest and Closest option available. Average driving time to city center is 16 minutes. Flights from $487
GSO
Piedmont Triad Intl.
CheapestClosest
Average driving time to city center16 min
Flights from $487

What you need to know for your flight from Ontario Intl. Airport to Piedmont Triad Intl.

Ontario (ONT) to Greensboro (GSO) at a glance

Travel from Ontario (ONT) to Greensboro (GSO) with a selection of airlines on this domestic short-haul route. Explore various Greensboro flights to find the best itinerary that suits your budget and schedule as you discover the city's popular attractions and neighborhoods. Check out the essential details for flights from Ontario International Airport (ONT) to Piedmont Triad International Airport (GSO) and uncover options for cheap Ontario to Greensboro airfare that fit your travel plans.

  • Fastest flight duration: around 5h 30m in-flight, plus roughly 1h 30m layover with one stop
  • Route distance: roughly 2,100 miles (3,380 km)
  • Flights per week: around 9 departures on average
  • Typical fares (one-way): economy tickets often range from $155–$465, depending on seasonality and how far ahead you book

Flights from Los Angeles - Ontario International Airport (ONT) to Piedmont Triad International Airport (GSO)

Based on the latest traveler bookings, the most popular airlines flying from Ontario to Greensboro often provide one-stop service, with common layovers at Hartsfield-Jackson Atlanta International Airport (ATL, approximately 2 hours and 15 minutes), Dallas-Fort Worth International Airport (DFW, around 1 hour and 30 minutes), and Charlotte-Douglas International Airport (CLT, also about 1 hour and 30 minutes). This variety allows you to tailor your travel experience by balancing price, total travel time, and cabin class to find the perfect itinerary.

  • American Airlines: This full-service airline provides one-stop flights, with one-way ticket prices generally between $155 and $445. It represents around 51% of the departures for this route, featuring an in-flight duration of 5 hours and 30 minutes, and a total travel time of about 7 hours, including the layover.
  • Delta: Offering one-stop service, Delta is another full-service airline with one-way fares usually ranging from $155 to $505. It makes up about 43% of departures on this route, with a flight time of 5 hours and 30 minutes, resulting in an overall journey time of approximately 7 hours, factoring in the layover.
  • United: A full-service carrier that provides one-stop options, United's one-way fares typically fall between $170 and $465. It accounts for roughly 5% of the departures on this route, with an in-flight time of 5 hours and 30 minutes and a total travel duration of around 7 hours when including the layover.

Best time to fly from Ontario (ONT) to Greensboro (GSO)

The most popular months for travelers flying from Ontario to Greensboro are March, April, and August, when peak temperatures in Greensboro reach up to 76.8°F in August. If you prefer quieter travel, consider December, the least busy time to visit with temperatures around 43.5°F and typically the lowest average one-way fare (around $231). Flight availability peaks in May, with approximately 11 flights per week, making it easier to find convenient departure times. January has the fewest flights, with approximately 7 flights per week.

  • Cheapest time to fly: December usually offers good deals with average one-way fare around $231, roughly 14% cheaper than the yearly average.
  • More budget-friendly months to fly: February, May, and August typically offer average one-way fares roughly ranging from $232 to $244.
  • Most flight options: May has the highest number of flights from Ontario to Greensboro, with approximately 11 flights per week, giving you more flexibility in scheduling your trip.
calendar iconMonthtemperature iconTemperaturecrowd level iconDemandflights iconWeekly Flightsprice iconAverage one-way Fare
January38.8°F (3.8°C)Average7$271
February42.8°F (6.0°C)Low8$232
March49.5°F (9.7°C)High9$330
April58.8°F (14.9°C)High9$315
May67.5°F (19.7°C)Average11$232
June75.2°F (24.0°C)Average10$253
July79.0°F (26.1°C)Average9$276
August76.8°F (24.9°C)High9$244
September71.2°F (21.8°C)Average10$280
October60.8°F (16.0°C)Average10$281
November49.3°F (9.6°C)Low9$289
December43.5°F (6.4°C)Low9$231

*Average one-way fare is based on Expedia flight booking data from January 2025 to April 2026 for the specified route and travel class and may change depending on availability, dates, and demand.

Alternative route from Ontario (ONT) to Greensboro (GSO)

  • Orange County to Greensboro (SNA-GSO): John Wayne Airport (SNA) is located approximately 31 miles from Los Angeles - Ontario International Airport (ONT). On this route, one-way economy ticket prices usually fall between $140 and $475, influenced by the time of year and how far in advance you book. Travelers will typically find one-stop flights, with common layover points at Dallas-Fort Worth International Airport (DFW) and Hartsfield-Jackson Atlanta International Airport (ATL). Major airlines operating on this route include American Airlines and Delta, with first class service also available.

How to find the best prices for flights from Ontario (ONT) to Greensboro (GSO)

Getting some of the best deals on flights from Ontario to Greensboro is all about timing and flexibility. Here are some key tips to help you save:

  1. Best times to book and fly: cheaper fares are usually available when booking 2-8 weeks in advance, which coincides with the typical booking period for most travelers. Morning departures, between 5 AM and 12 PM, often provide lower prices and are also the most popular. Additionally, flying on Thursday tends to result in both cheaper fares and high demand among travelers.
  2. Set up price alerts: stay updated on price changes by using Expedia's Price Tracker. Receive alerts when fares drop for your selected route.
  3. Bundle and save: bundle your flight and hotel to save on Expedia, or unlock a hotel deal after booking your flight.*
  4. Compare flight options: use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
  5. Stay flexible with dates: being open to different travel days can sometimes help you find better prices on flights and hotels.
  6. Think about luggage: nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your allowance before confirming your booking to avoid excess baggage fees at the airport.

*Members only. Savings vary and are not available on all bundles. Select hotels.

Arriving at Piedmont Triad International Airport from Los Angeles - Ontario International Airport

Greensboro welcomes travelers from Ontario with a range of transport options based on price, convenience, and proximity. Here's how to reach Greensboro efficiently:

  • Hotel transfer: Transfers offer a convenient way to reach your hotel in Greensboro, with private rides that can be arranged in advance.
  • Car rental: Renting a car from Piedmont Triad International Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at Piedmont Triad International Airport on Expedia.
  • Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.

Frequently asked questions

How much does a flight from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Greensboro, NC (GSO-Piedmont Triad Intl.) cost?
You can find cheap one-way flights from $294 and cheap return flights from $399 Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Greensboro, NC (GSO-Piedmont Triad Intl.) with Expedia. One-way flights typically cost between $221 and $1055, and return flights often range between $432 and $1461. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Greensboro, NC (GSO-Piedmont Triad Intl.) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Greensboro, NC (GSO-Piedmont Triad Intl.)?
The cheapest month to fly from ONT to GSO is October when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Greensboro, NC (GSO-Piedmont Triad Intl.)?
Enter ONT to GSO and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Greensboro, NC (GSO-Piedmont Triad Intl.)?
American Airlines is one of the cheapest airlines offering connecting flights from Ontario, CA (ONT) to Greensboro, NC (GSO), with round-trip tickets starting from around $308.37 with a layover in Dallas-Fort Worth Intl. (DFW). Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Greensboro, NC (GSO-Piedmont Triad Intl.)?
To find a cheap flight from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Greensboro, NC (GSO-Piedmont Triad Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Greensboro, NC (GSO-Piedmont Triad Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
What is the earliest flight from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Greensboro, NC (GSO-Piedmont Triad Intl.)?
The earliest flight from Los Angeles - Ontario International Airport (ONT) to Piedmont Triad International Airport (GSO) typically departs at around 12:55 AM, operated by American Airlines. This seasonal service is available in December, allowing you to start your journey early and make the most of your time in North Carolina. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Greensboro, NC (GSO-Piedmont Triad Intl.)?
The most popular departure times for flights from Ontario, CA (ONT) to Greensboro, NC (GSO) are in the early morning, from 6am to 9am. About 35% of passengers prefer this time window. Many major carriers, including United Airlines and American Airlines, offer flights during this window. This timing is ideal for travelers who want to arrive in Greensboro with plenty of time to explore the city.
How long does it take to fly from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Greensboro, NC (GSO-Piedmont Triad Intl.)?
A flight from ONT to GSO with a layover takes around 8 hours, with the route covering approximately 2,120 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Greensboro, NC (GSO-Piedmont Triad Intl.)?
First class seats are offered on the ONT to GSO route. First class cabins are available on:

  • Delta Air Lines
  • United Airlines
  • American Airlines

How do I earn miles on a Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Greensboro, NC (GSO-Piedmont Triad Intl.) flight with Expedia?
It's easy to earn miles on a Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Greensboro, NC (GSO-Piedmont Triad Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Greensboro from Los Angeles - Ontario Intl. (ONT)?
If you're planning to travel to Greensboro from Los Angeles - Ontario Intl. (ONT), you can fly into Piedmont Triad Intl. (GSO) Some flights may connect through major hubs like San Francisco Intl. (SFO), Denver Intl. (DEN), George Bush Intercontinental (IAH) before reaching Greensboro. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Greensboro, NC (GSO-Piedmont Triad Intl.) at the last minute?
Typically, booking a last minute flight from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Greensboro, NC (GSO-Piedmont Triad Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Greensboro, NC (GSO-Piedmont Triad Intl.) flight and hotel package?
Securing a Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Greensboro, NC (GSO-Piedmont Triad Intl.) Greensboro Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Greensboro, NC (GSO-Piedmont Triad Intl.)?
If you booked your Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Greensboro, NC (GSO-Piedmont Triad Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Ontario Intl. Airport
Destination airport
Piedmont Triad Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, United
Roundtrip price
$398
Distance
2120 mi

Book with confidence

Ontario Intl. Airport to Greensboro Flights

The cheapest times to fly from Ontario Intl. Airport to Greensboro

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Ontario Intl. Airport to Greensboro are during the month of October. You can find some of the cheapest flights from Ontario Intl. Airport to Greensboro with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Ontario Intl. Airport to Greensboro

Sunday is one of the best days to book for cheap flights from Ontario Intl. Airport to Greensboro: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Ontario Intl. Airport to Greensboro

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Ontario Intl. Airport to Greensboro in 2026. You can also book with separate airlines for your outbound and return journeys, from $294 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Ontario Intl. Airport to Greensboro flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Ontario Intl. Airport to Greensboro airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Ontario Intl. Airport to Greensboro Flights

*Flight schedules are subject to change.

*Available to One Key members.

 

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