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Cheap flights from Green Bay to Ontario from C$ 348

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 9/5. Fares are subject to change and may not be available on all flights or dates of travel.
GRB — YYZ
9 May — 16 May1
1 adult
1 adult, Economy, 0 bags

Cheap 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 9 April 2026.

Wed 20/59:42 a.m.
GRB
-
YYZ
1 stop12h 47m
American Airlines
Wed 27/56:26 p.m.
YYZ
-
GRB
1 stop18h 19m
American Airlines
Deal found 4/4C$ 756
Wed 6/57:30 a.m.
GRB
-
YYZ
1 stop14h 59m
American Airlines
Wed 13/56:15 a.m.
YYZ
-
GRB
1 stop11h 39m
American Airlines
Deal found 6/4C$ 785
Sat 23/512:15 p.m.
GRB
-
YUL
1 stop22h 29m
American Airlines
Sat 30/57:29 a.m.
YUL
-
GRB
2 stops17h 24m
American Airlines
Deal found 8/4C$ 825
Tue 26/56:30 a.m.
GRB
-
YYZ
1 stop8h 16m
United Airlines
Sat 30/511:00 a.m.
YYZ
-
GRB
1 stop9h 10m
United Airlines
Deal found 5/4C$ 846
Wed 20/58:00 a.m.
GRB
-
YYZ
1 stop8h 56m
United Airlines
Wed 27/56:25 a.m.
YYZ
-
GRB
2 stops13h 45m
United Airlines
Deal found 4/4C$ 860
Thu 21/56:00 a.m.
GRB
-
YYZ
1 stop7h 30m
American Airlines
Thu 28/56:26 p.m.
YYZ
-
GRB
1 stop15h 47m
American Airlines
Deal found 6/4C$ 875
Fri 17/76:55 p.m.
GRB
-
YUL
1 stop15h 49m
American Airlines
Thu 23/712:30 p.m.
YUL
-
GRB
1 stop21h 49m
American Airlines
Deal found 4/4C$ 877
Sat 23/59:43 a.m.
GRB
-
YYZ
2 stops10h 58m
American Airlines
Sat 30/57:20 a.m.
YYZ
-
GRB
1 stop11h 59m
American Airlines
Deal found 8/4C$ 950
Mon 13/47:30 a.m.
GRB
-
YYZ
1 stop9h 13m
American Airlines
Fri 17/43:13 p.m.
YYZ
-
GRB
1 stop18h 59m
American Airlines
Deal found 4/4C$ 960
Tue 28/45:00 a.m.
GRB
-
YUL
1 stop15h 26m
United Airlines
Wed 29/49:45 a.m.
YUL
-
GRB
1 stop5h 28m
United Airlines
Deal found 5/4C$ 974
Sat 26/125:25 p.m.
GRB
-
YYZ
1 stop4h 35m
WestJet
Thu 31/126:00 a.m.
YYZ
-
GRB
1 stop5h 23m
WestJet
Deal found 6/4C$ 1,000
Tue 26/56:30 a.m.
GRB
-
YYZ
1 stop8h 16m
United Airlines
Wed 27/51:00 p.m.
YYZ
-
GRB
1 stop9h 30m
United Airlines
Deal found 7/4C$ 1,025

Find 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 9 April 2026.

Round-trip from

C$ 756

One-way from

C$ 348
American Airlines
  • American Airlines
  • 20/5-27/5
  • 2 total stops
  • 31h 06m total
  • Green Bay to Ontario
Search Deals
American Airlines
  • American Airlines
  • 9/5
  • 1 total stop
  • 11h 00m 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 9 April 2026.
Use the filters below to find and compare flights from Green Bay to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Green BayToronto

GRB - YYZ

GRBYYZ

Green Bay Austin-Straubel

Wed 20/5

9:42 a.m.-11:29 p.m.

1 stop12h 47m

Toronto Pearson Intl

Wed 27/5

6:26 p.m.-11:45 a.m.

1 stop18h 19m

C$ 756

Green BayToronto

GRB - YYZ

GRBYYZ

Green Bay Austin-Straubel

Wed 6/5

7:30 a.m.-11:29 p.m.

1 stop14h 59m

Toronto Pearson Intl

Wed 13/5

6:15 a.m.-4:54 p.m.

1 stop11h 39m

C$ 785

Green BayToronto

GRB - YYZ

GRBYYZ

Green Bay Austin-Straubel

Sat 23/5

6:51 p.m.-10:59 a.m.

1 stop15h 08m

Toronto Pearson Intl

Sat 30/5

1:15 p.m.-11:53 p.m.

1 stop11h 38m

C$ 785

Green BayMontreal

GRB - YUL

GRBYUL

Green Bay Austin-Straubel

Sat 23/5

12:15 p.m.-11:44 a.m.

1 stop22h 29m

Montreal Pierre Elliott Trudeau Intl

Sat 30/5

7:29 a.m.-11:53 p.m.

2 stops17h 24m

C$ 825

Green BayToronto

GRB - YYZ

GRBYYZ

Green Bay Austin-Straubel

Tue 26/5

2:35 p.m.-11:59 p.m.

1 stop8h 24m

Toronto Pearson Intl

Sat 30/5

4:00 p.m.-10:45 p.m.

1 stop7h 45m

C$ 846

Green BayMontreal

GRB - YUL

GRBYUL

Green Bay Austin-Straubel

Fri 17/7

6:55 p.m.-11:44 a.m.

1 stop15h 49m

Montreal Pierre Elliott Trudeau Intl

Thu 23/7

12:30 p.m.-9:19 a.m.

1 stop21h 49m

C$ 877

Green BayMontreal

GRB - YUL

GRBYUL

Green Bay Austin-Straubel

Tue 28/4

6:30 a.m.-9:26 p.m.

1 stop13h 56m

Montreal Pierre Elliott Trudeau Intl

Wed 29/4

6:10 a.m.-2:13 p.m.

1 stop9h 03m

C$ 974

Green BayToronto

GRB - YYZ

GRBYYZ

Green Bay Austin-Straubel

Tue 26/5

6:30 a.m.-3:46 p.m.

1 stop8h 16m

Toronto Pearson Intl

Wed 27/5

1:00 p.m.-9:30 p.m.

1 stop9h 30m

C$ 1,025
Quickest round-trip

Green BayToronto

GRB - YYZ

GRBYYZ

Green Bay Austin-Straubel

Tue 19/5

3:48 p.m.-8:44 p.m.

1 stop3h 56m

Toronto Pearson Intl

Tue 26/5

11:00 a.m.-2:00 p.m.

1 stop4h 00m

C$ 1,090

Green BayToronto

GRB - YYZ

GRBYYZ

Green Bay Austin-Straubel

Thu 21/5

6:20 a.m.-9:35 p.m.

2 stops14h 15m

Toronto Pearson Intl

Thu 28/5

8:00 a.m.-9:58 p.m.

2 stops14h 58m

C$ 2,457

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/4

Showing 1-10 of 14 resultsSorted by cheapest first
1
2

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 8h 24m. The distance from Green Bay to Region of Ontario is about 686 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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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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