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Cheap flights from Green Bay to Ontario from C$ 411

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 5/12. Fares are subject to change and may not be available on all flights or dates of travel.
GRB — YYZ
30 Nov — 7 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Green Bay to Ontario

Enter your travel dates to find the best prices.

Cheapest flights from Green Bay to Ontario
Explore the most affordable flight options available from Green Bay to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 October 2025.

Sun 16/117:52 p.m.GRB - YYZ
1 stop15h 40mAmerican Airlines
Sun 23/116:00 a.m.YYZ - GRB
1 stop18h 28mAmerican Airlines
Deal found 29/10C$ 740
Fri 28/118:00 a.m.GRB - YYZ
1 stop7h 39mMultiple Airlines
Sun 30/116:50 a.m.YYZ - GRB
1 stop10h 56mMultiple Airlines
Deal found 30/10C$ 930
Thu 27/1112:20 p.m.GRB - YUL
1 stop6h 27mDelta
Sun 30/117:10 a.m.YUL - GRB
1 stop5h 23mDelta
Deal found 29/10C$ 954
Fri 28/116:15 a.m.GRB - YYZ
2 stops6h 59mUnited Airlines
Sun 30/119:00 a.m.YYZ - GRB
1 stop4h 33mUnited Airlines
Deal found 30/10C$ 1,018
Thu 27/116:15 a.m.GRB - YUL
2 stops12h 33mUnited Airlines
Sun 30/116:00 a.m.YUL - GRB
1 stop7h 33mUnited Airlines
Deal found 30/10C$ 1,054
Sun 16/116:15 a.m.GRB - YYZ
2 stops6h 59mUnited Airlines
Sun 23/1110:45 a.m.YYZ - GRB
2 stops9h 16mUnited Airlines
Deal found 29/10C$ 1,085
Thu 27/1112:00 p.m.GRB - YUL
2 stops33h 40mAmerican Airlines
Sun 30/117:14 a.m.YUL - GRB
2 stops10h 44mAmerican Airlines
Deal found 29/10C$ 1,125
Sat 1/1111:06 a.m.GRB - YYZ
1 stop21h 49mWestJet
Mon 3/116:09 p.m.YYZ - GRB
1 stop17h 17mWestJet
Deal found 30/10C$ 1,229
Thu 30/109:44 a.m.GRB - YYZ
1 stop3h 45mAmerican Airlines
Sat 1/113:10 p.m.YYZ - GRB
1 stop20h 05mAmerican Airlines
Deal found 30/10C$ 1,320
Sat 1/1110:46 a.m.GRB - YYZ
1 stop4h 16mUnited Airlines
Mon 3/1110:45 a.m.YYZ - GRB
2 stops9h 15mUnited Airlines
Deal found 30/10C$ 1,332
Thu 30/1010:46 a.m.GRB - YYZ
2 stops7h 11mUnited Airlines
Sat 1/117:40 p.m.YYZ - GRB
2 stops16h 31mUnited Airlines
Deal found 30/10C$ 1,341
Tue 11/1110:46 a.m.GRB - YYZ
1 stop11h 04mAmerican Airlines
Sat 15/1111:32 a.m.YYZ - GRB
1 stop4h 29mAmerican Airlines
Deal found 30/10C$ 2,758

Cheap flight deals from Green Bay to Ontario

Keep the following information in mind while searching for Green Bay to Ontario flight deals. Data was last updated 31 October 2025.

Round-trip from

C$ 680

One-way from

C$ 411
United Airlines
  • United Airlines
  • 17/2-21/2
  • 2 total stops
  • 24h 28m total
  • Green Bay to Ontario
Search Deals
American Airlines
  • American Airlines
  • 5/12
  • 1 total stop
  • 13h 54m total
  • Green Bay to Ontario
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Green Bay 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 629,999 searches. Data last updated 31 October 2025.
Use the filters below to find and compare flights from Green Bay to Ontario that are best for you.

Fly from

Green Bay

Fly to

Ontario

Route

Depart

Return

Price

Green BayToronto

GRB - YYZ

GRBYYZ

Green Bay Austin-Straubel

Tue 17/2

3:05 p.m.-11:59 p.m.

1 stop7h 54m

Toronto Pearson Intl

Sat 21/2

6:30 p.m.-10:04 a.m.

1 stop16h 34m

C$ 680

Green BayToronto

GRB - YYZ

GRBYYZ

Green Bay Austin-Straubel

Tue 17/2

6:33 p.m.-4:00 p.m.

1 stop20h 27m

Toronto Pearson Intl

Sat 21/2

7:30 a.m.-6:03 p.m.

2 stops11h 33m

C$ 715

Green BayMontreal

GRB - YUL

GRBYUL

Green Bay Austin-Straubel

Thu 16/4

1:10 p.m.-4:05 p.m.

1 stop25h 55m

Montreal Pierre Elliott Trudeau Intl

Mon 20/4

9:25 a.m.-10:35 a.m.

1 stop26h 10m

C$ 737

Green BayToronto

GRB - YYZ

GRBYYZ

Green Bay Austin-Straubel

Sun 16/11

7:52 p.m.-12:32 p.m.

1 stop15h 40m

Toronto Pearson Intl

Sun 23/11

6:00 a.m.-11:28 p.m.

1 stop18h 28m

C$ 740

Green BayToronto

GRB - YYZ

GRBYYZ

Green Bay Austin-Straubel

Mon 9/3

3:30 p.m.-10:40 a.m.

1 stop18h 10m

Toronto Pearson Intl

Fri 13/3

9:00 p.m.-10:04 a.m.

1 stop14h 04m

C$ 748

Green BayToronto

GRB - YYZ

GRBYYZ

Green Bay Austin-Straubel

Fri 28/11

8:00 a.m.-4:39 p.m.

1 stop7h 39m

Toronto Pearson Intl

Sun 30/11

6:50 a.m.-4:46 p.m.

1 stop10h 56m

C$ 930

Green BayMontreal

GRB - YUL

GRBYUL

Green Bay Austin-Straubel

Thu 27/11

12:20 p.m.-7:47 p.m.

1 stop6h 27m

Montreal Pierre Elliott Trudeau Intl

Sun 30/11

7:10 a.m.-11:33 a.m.

1 stop5h 23m

C$ 954

Green BayToronto

GRB - YYZ

GRBYYZ

Green Bay Austin-Straubel

Fri 28/11

6:15 a.m.-2:14 p.m.

2 stops6h 59m

Toronto Pearson Intl

Sun 30/11

9:00 a.m.-12:33 p.m.

1 stop4h 33m

C$ 1,018

Green BayMontreal

GRB - YUL

GRBYUL

Green Bay Austin-Straubel

Thu 27/11

6:15 a.m.-7:48 p.m.

2 stops12h 33m

Montreal Pierre Elliott Trudeau Intl

Sun 30/11

6:00 a.m.-12:33 p.m.

1 stop7h 33m

C$ 1,054

Green BayMontreal

GRB - YUL

GRBYUL

Green Bay Austin-Straubel

Thu 16/4

6:40 p.m.-1:35 p.m.

2 stops17h 55m

Montreal Pierre Elliott Trudeau Intl

Mon 20/4

5:45 p.m.-10:45 a.m.

2 stops18h 00m

C$ 1,057

Flights are sorted by cheapest round-trip flights first.

Deals found on 30/10

Showing 1-10 of 17 results
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Best time to book a flight from Green Bay to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Green Bay 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 Green Bay to Ontario
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Green Bay to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Green Bay to Ontario?

    Most people fly from Green Bay Austin-Straubel (GRB) if they book a flight from Green Bay to Ontario. Green Bay Austin-Straubel is conveniently located just 9.5 km from Green Bay’s city centre.

  • How long is the flight from Green Bay to Region of Ontario?

    Departing from Green Bay to Region of Ontario will take you 6h 27m. The distance from Green Bay to Region of Ontario is about 1135 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

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

  • How can I find direct flights from Green Bay to Ontario?

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

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

    Yes. Cheapflights offers flight deals from Green Bay 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.

See more FAQs

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Alternative routes for Green Bay to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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How does Cheapflights help users find flights from Green Bay to Ontario?

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Why should you use Cheapflights to find cheap flight tickets from Green Bay to Ontario?

Cheapflights helps you find that perfect flight to Ontario from Green Bay by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Green Bay to Ontario with no change fees?

Certainly. Search results for flights to Ontario from Green Bay shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Green Bay to Ontario become cheaper?

Yes, Cheapflights offers price alerts on Green Bay to Ontario flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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