$282+ Cheap flights from Ontario to Green Bay (ONT - GRB)
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 11/25. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — GRB
Oct 15 — Oct 221
Round-trip
1 adult, Economy
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Find cheap flights from Ontario to Green Bay 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 Ontario to Green Bay
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Cheapest flights from Ontario to Green BayExplore the most affordable flight options available from Ontario to Green Bay. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2026.
Explore the most affordable flight options available from Ontario to Green Bay. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2026.
This Delta deal was found by Cheapflights users on 9/12. 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 12/306:00 am -
2 stops8h 33m
Wed 1/135:30 am -
1 stop7h 57m
Deal found 9/12![Delta logo]()
$384
This Delta deal was found by Cheapflights users on 9/14. 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.
Fri 12/256:00 am -
2 stops8h 10m
Wed 1/64:00 pm -
2 stops8h 48m
Deal found 9/14![Delta logo]()
$389
This American Airlines deal was found by Cheapflights users on 9/12. 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.
Sun 10/47:11 pm -
2 stops12h 11m
Sat 10/1712:40 pm -
1 stop9h 03m
Deal found 9/12![American Airlines logo]()
$411
This Delta deal was found by Cheapflights users on 9/13. 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 9/2912:17 pm -
1 stop8h 07m
Tue 10/65:30 am -
1 stop7h 36m
Deal found 9/13![Delta logo]()
$414
This Delta deal was found by Cheapflights users on 9/14. 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.
Fri 12/2511:10 am -
1 stop9h 54m
Thu 1/74:00 pm -
2 stops8h 48m
Deal found 9/14![Delta logo]()
$444
This United Airlines deal was found by Cheapflights users on 9/14. 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 9/297:00 am -
1 stop7h 54m
Sat 10/33:42 pm -
1 stop9h 07m
Deal found 9/14![United Airlines logo]()
$449
This Delta deal was found by Cheapflights users on 9/13. 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 9/2612:17 pm -
1 stop8h 07m
Tue 10/65:30 am -
1 stop7h 36m
Deal found 9/13![Delta logo]()
$455
This Delta deal was found by Cheapflights users on 9/14. 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 9/296:00 pm -
2 stops14h 22m
Sat 10/31:10 pm -
2 stops10h 54m
Deal found 9/14![Delta logo]()
$459
This United Airlines deal was found by Cheapflights users on 9/12. 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 9/166:08 am -
2 stops11h 43m
Sat 10/173:45 pm -
1 stop9h 04m
Deal found 9/12![United Airlines logo]()
$460
This Delta deal was found by Cheapflights users on 9/14. 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 12/3011:10 am -
1 stop9h 54m
Wed 1/64:00 pm -
2 stops8h 48m
Deal found 9/14![Delta logo]()
$473
Best flights from Ontario to Green BayDiscover carefully curated flight deals from Ontario to Green Bay that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 15, 2026.
Discover carefully curated flight deals from Ontario to Green Bay that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 15, 2026.
This Delta deal was found by Cheapflights users on 9/13. 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 9/2912:17 pm -
1 stop8h 07m
Tue 10/65:30 am -
1 stop7h 36m
Deal found 9/13![Delta logo]()
$414
This United Airlines deal was found by Cheapflights users on 9/13. 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 12/116:40 pm -
2 stops12h 19m
Tue 12/155:00 am -
2 stops12h 35m
Deal found 9/13![United Airlines logo]()
$489
This United Airlines deal was found by Cheapflights users on 9/11. 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 9/251:24 pm -
2 stops7h 55m
Sat 10/33:42 pm -
1 stop9h 07m
Deal found 9/11![United Airlines logo]()
$499
This Delta deal was found by Cheapflights users on 9/14. 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.
Thu 10/112:19 pm -
1 stop8h 05m
Sun 10/45:30 am -
1 stop7h 39m
Deal found 9/14![Delta logo]()
$574
This United Airlines deal was found by Cheapflights users on 9/13. 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 9/265:00 am -
2 stops12h 48m
Tue 10/65:00 am -
2 stops12h 22m
Deal found 9/13![United Airlines logo]()
$565
This Delta deal was found by Cheapflights users on 9/10. 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.
Thu 9/2412:19 pm -
1 stop8h 05m
Tue 10/65:30 am -
1 stop7h 36m
Deal found 9/10![Delta logo]()
$598
This United Airlines deal was found by Cheapflights users on 9/11. 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 9/266:00 am -
2 stops8h 54m
Mon 9/283:42 pm -
1 stop9h 07m
Deal found 9/11![United Airlines logo]()
$609
This United Airlines deal was found by Cheapflights users on 9/11. 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 9/251:24 pm -
2 stops7h 55m
Sun 9/273:42 pm -
1 stop9h 07m
Deal found 9/11![United Airlines logo]()
$609
This United Airlines deal was found by Cheapflights users on 9/10. 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 10/101:22 pm -
2 stops7h 57m
Sat 10/171:17 pm -
2 stops11h 34m
Deal found 9/10![United Airlines logo]()
$618
This United Airlines deal was found by Cheapflights users on 9/10. 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 9/241:24 pm -
2 stops7h 55m
Tue 10/63:42 pm -
1 stop9h 07m
Deal found 9/10![United Airlines logo]()
$639
This United Airlines deal was found by Cheapflights users on 9/11. 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 9/231:56 pm -
2 stops27h 53m
Sat 10/33:42 pm -
1 stop9h 07m
Deal found 9/11![United Airlines logo]()
$667
Last-minute flights from Ontario to Green BayDiscover last-minute flight deals from Ontario to Green Bay. Data last updated September 15, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Green Bay. Data last updated September 15, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 9/12. 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 9/166:08 am -
2 stops11h 43m
Sat 10/173:45 pm -
1 stop9h 04m
Deal found 9/12![United Airlines logo]()
$460
This American Airlines deal was found by Cheapflights users on 9/10. 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.
Thu 9/247:11 pm -
2 stops12h 24m
Tue 10/68:04 pm -
2 stops15h 06m
Deal found 9/10![American Airlines logo]()
$492
This Delta deal was found by Cheapflights users on 9/11. 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.
Fri 9/2512:19 pm -
1 stop8h 05m
Tue 9/295:30 am -
1 stop7h 35m
Deal found 9/11![Delta logo]()
$479
This Delta deal was found by Cheapflights users on 9/13. 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 9/2612:17 pm -
1 stop8h 07m
Tue 10/65:30 am -
1 stop7h 36m
Deal found 9/13![Delta logo]()
$455
This Delta deal was found by Cheapflights users on 9/13. 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 9/2812:19 pm -
1 stop8h 05m
Tue 10/65:30 am -
1 stop7h 36m
Deal found 9/13![Delta logo]()
$444
This Delta deal was found by Cheapflights users on 9/13. 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 9/2912:17 pm -
1 stop8h 07m
Tue 10/65:30 am -
1 stop7h 36m
Deal found 9/13![Delta logo]()
$414
This United Airlines deal was found by Cheapflights users on 9/14. 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 9/297:00 am -
1 stop7h 54m
Sat 10/33:42 pm -
1 stop9h 07m
Deal found 9/14![United Airlines logo]()
$449
This Delta deal was found by Cheapflights users on 9/14. 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 9/296:00 pm -
2 stops14h 22m
Sat 10/31:10 pm -
2 stops10h 54m
Deal found 9/14![Delta logo]()
$459
This American Airlines deal was found by Cheapflights users on 9/12. 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.
Sun 10/47:11 pm -
2 stops12h 11m
Sat 10/1712:40 pm -
1 stop9h 03m
Deal found 9/12![American Airlines logo]()
$411
One-way flights from Ontario to Green BaySearch for one-way flight options from Ontario to Green Bay. Find affordable one-way fares based on user searches. Data last updated September 15, 2026.
Search for one-way flight options from Ontario to Green Bay. Find affordable one-way fares based on user searches. Data last updated September 15, 2026.
This American Airlines deal was found by Cheapflights users on 9/11. 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 11/257:45 pm -
2 stops11h 47m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![American Airlines logo]()
$282
This Delta deal was found by Cheapflights users on 9/11. 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 11/2512:18 pm -
1 stop8h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Delta logo]()
$287
This American Airlines deal was found by Cheapflights users on 9/11. 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.
Fri 10/301:05 pm -
2 stops9h 07m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![American Airlines logo]()
$320
This Delta deal was found by Cheapflights users on 9/11. 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.
Thu 11/2612:18 pm -
1 stop8h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Delta logo]()
$324
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Sun 11/15:00 am -
2 stops9h 52m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![United Airlines logo]()
$329
This United Airlines deal was found by Cheapflights users on 9/12. 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 10/131:22 pm -
2 stops7h 57m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/12![United Airlines logo]()
$342
This American Airlines deal was found by Cheapflights users on 9/11. 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.
Sun 10/47:11 pm -
2 stops12h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![American Airlines logo]()
$349
This Delta deal was found by Cheapflights users on 9/14. 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 10/1312:16 pm -
1 stop8h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Delta logo]()
$354
This United Airlines deal was found by Cheapflights users on 9/11. 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 9/197:00 am -
1 stop6h 43m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![United Airlines logo]()
$379
This American Airlines deal was found by Cheapflights users on 9/11. 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.
Sat 9/1910:25 am -
2 stops11h 48m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![American Airlines logo]()
$384
Find flight deals from Ontario to Green Bay
Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Green Bay (GRB). 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 September 15, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $411 (American Airlines) |
One-way from | $282 (American Airlines) |
Popular in | March |
Cheapest in | January |
Average price | $502 |
Cheapflights Fare Finder
Customize your flight search to find flights from Ontario to Green Bay 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 September 15, 2026.
Use the filters below to find and compare flights from Ontario to Green Bay that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
OntarioGreen Bay
ONT Ontario - GRB Green Bay Austin-Straubel
ONTGRB
Ontario
Wed 11/25
12:18 pm-10:29 pm
1 stop8h 11m
Green Bay Austin-Straubel
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$287
OntarioGreen Bay
ONT Ontario - GRB Green Bay Austin-Straubel
ONTGRB
Ontario
Fri 10/30
1:05 pm-12:12 am
2 stops9h 07m
Green Bay Austin-Straubel
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$320
OntarioGreen Bay
ONT Ontario - GRB Green Bay Austin-Straubel
ONTGRB
Ontario
Thu 11/26
12:18 pm-10:29 pm
1 stop8h 11m
Green Bay Austin-Straubel
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$324
OntarioGreen Bay
ONT Ontario - GRB Green Bay Austin-Straubel
ONTGRB
Ontario
Sun 11/1
5:00 am-4:52 pm
2 stops9h 52m
Green Bay Austin-Straubel
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$329
OntarioGreen Bay
ONT Ontario - GRB Green Bay Austin-Straubel
ONTGRB
Ontario
Tue 10/13
12:16 pm-10:27 pm
1 stop8h 11m
Green Bay Austin-Straubel
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$354
OntarioGreen Bay
ONT Ontario - GRB Green Bay Austin-Straubel
ONTGRB
Ontario
Mon 9/28
12:19 pm-10:24 pm
1 stop8h 05m
Green Bay Austin-Straubel
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$384
OntarioGreen Bay
ONT Ontario - GRB Green Bay Austin-Straubel
ONTGRB
Ontario
Fri 10/2
6:00 am-9:03 pm
2 stops13h 03m
Green Bay Austin-Straubel
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$389
OntarioGreen Bay
ONT Ontario - GRB Green Bay Austin-Straubel
ONTGRB
Ontario
Fri 10/16
1:24 pm-11:19 pm
2 stops7h 55m
Green Bay Austin-Straubel
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$394
Quickest round-trip
OntarioGreen Bay
ONT Ontario - GRB Green Bay Austin-Straubel
ONTGRB
Ontario
Sun 9/27
7:00 am-4:54 pm
1 stop7h 54m
Green Bay Austin-Straubel
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$412
OntarioGreen Bay
ONT Ontario - GRB Green Bay Austin-Straubel
ONTGRB
Ontario
Tue 9/29
12:17 pm-10:24 pm
1 stop8h 07m
Green Bay Austin-Straubel
Tue 10/6
5:30 am-11:06 am
1 stop7h 36m
$414
Showing 1-10 of 21 resultsSorted by cheapest first
Compare providers for flights from Ontario to Green Bay
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 Ontario to Green Bay in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Ontario-Green Bay flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Green Bay flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Green Bay flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Ontario-Green Bay 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 Ontario-Green Bay 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 Ontario to Green Bay
Have a flexible travel schedule? Discover the best time to fly to Green Bay from Ontario with our price prediction graph.
ONT-GRB
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.
Reviews of airlines servicing Green Bay
Get insights into the airlines that provide service to Green Bay. 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 Green Bay. Reviews last updated September 15, 2026.
Peruse reviews from past customers who have flown with Delta and United Airlines from Ontario to Green Bay to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.8
Crew
8.5
Boarding
8.1
Entertainment
7.8
Overall
7.8
Food
7.2
Reviews
1 / 20
10.0
ExcellentMichael,Sep 2023
SMF - ATL
Comfort
7.8
Crew
8.5
Boarding
8.1
Entertainment
7.8
Overall
7.8
Food
7.2
Reviews
1 / 20
10.0
ExcellentMichael,Sep 2023
SMF - ATL
Comfort
7.8
Crew
8.5
Boarding
8.1
Entertainment
7.8
Overall
7.8
Food
7.2
Reviews
1 / 20
10.0
ExcellentMichael,Sep 2023
SMF - ATL
Related info for your journey
Find useful and relevant information for your journey from Ontario to Green Bay. 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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Find flights from Ontario to Green Bay, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Other flights to Green Bay
Explore flights to Green Bay departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 15, 2026.
Ontario and Green Bay flights
Browse other Ontario and Green Bay flight options. Last updated on September 15, 2026.
Other flights from Ontario
Browse through other flights departing from Ontario. Flights are based on user searches made on Cheapflights and were last updated on September 15, 2026.
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Top 2 airlines flying from Ontario to Green Bay
Discover the top 2 airlines that operate flights from Ontario to Green Bay. 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 September 15, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$230 | Average$481 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$344 | Average$409 | FlexibilityNo cancel fee | On-time69% |