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Cheap flights from Green Bay to Ontario from C$ 401

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 1/9. Fares are subject to change and may not be available on all flights or dates of travel.
GRB — YYZ
7 Aug — 14 Aug1
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 8 July 2026.

Mon 24/87:02 p.m.
GRB
-
YYZ
1 stop16h 31m
American Airlines
Tue 1/97:20 a.m.
YYZ
-
GRB
1 stop8h 21m
American Airlines
Deal found 5/7C$ 737
Wed 26/85:55 a.m.
GRB
-
YYZ
1 stop16h 34m
American Airlines
Mon 31/81:15 p.m.
YYZ
-
GRB
1 stop12h 01m
American Airlines
Deal found 3/7C$ 837
Fri 21/87:02 p.m.
GRB
-
YYZ
1 stop16h 31m
American Airlines
Fri 28/87:15 p.m.
YYZ
-
GRB
1 stop17h 41m
American Airlines
Deal found 7/7C$ 848
Thu 27/83:20 p.m.
GRB
-
YYZ
1 stop18h 39m
American Airlines
Tue 1/97:20 a.m.
YYZ
-
GRB
1 stop8h 21m
American Airlines
Deal found 5/7C$ 867
Sat 29/86:25 a.m.
GRB
-
YYZ
1 stop13h 19m
United Airlines
Wed 2/97:00 a.m.
YYZ
-
GRB
1 stop5h 55m
United Airlines
Deal found 5/7C$ 894
Mon 24/812:03 p.m.
GRB
-
YYZ
1 stop5h 31m
Multiple Airlines
Tue 1/910:00 a.m.
YYZ
-
GRB
2 stops11h 40m
Multiple Airlines
Deal found 5/7C$ 901
Fri 24/73:24 p.m.
GRB
-
YYZ
1 stop18h 35m
American Airlines
Sun 26/77:20 a.m.
YYZ
-
GRB
1 stop17h 52m
American Airlines
Deal found 3/7C$ 916
Fri 31/76:08 a.m.
GRB
-
YYZ
1 stop10h 27m
American Airlines
Tue 4/87:17 a.m.
YYZ
-
GRB
1 stop17h 55m
American Airlines
Deal found 5/7C$ 921
Wed 22/710:37 a.m.
GRB
-
YYZ
1 stop4h 09m
United Airlines
Fri 24/72:45 p.m.
YYZ
-
GRB
1 stop5h 25m
United Airlines
Deal found 6/7C$ 923
Fri 21/85:55 a.m.
GRB
-
YUL
1 stop9h 55m
American Airlines
Fri 28/85:34 p.m.
YUL
-
GRB
1 stop19h 22m
American Airlines
Deal found 7/7C$ 923
Wed 22/76:08 a.m.
GRB
-
YUL
1 stop9h 39m
American Airlines
Fri 24/74:16 p.m.
YUL
-
GRB
2 stops19h 30m
American Airlines
Deal found 7/7C$ 932
Wed 22/79:00 a.m.
GRB
-
YUL
1 stop7h 30m
United Airlines
Fri 24/76:10 a.m.
YUL
-
GRB
1 stop4h 51m
United Airlines
Deal found 7/7C$ 973

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 8 July 2026.

Round-trip from

C$ 737

One-way from

C$ 401
American Airlines
  • American Airlines
  • 24/8-1/9
  • 2 total stops
  • 24h 52m total
  • Green Bay to Ontario
Search Deals
United Airlines
  • United Airlines
  • 1/9
  • 1 total stop
  • 5h 55m 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 8 July 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 26/8

5:55 a.m.-11:29 p.m.

1 stop16h 34m

Toronto Pearson Intl

Mon 31/8

1:15 p.m.-12:16 a.m.

1 stop12h 01m

C$ 837

Green BayToronto

GRB - YYZ

GRBYYZ

Green Bay Austin-Straubel

Sat 29/8

12:30 p.m.-8:44 p.m.

1 stop7h 14m

Toronto Pearson Intl

Wed 2/9

7:00 a.m.-11:55 a.m.

1 stop5h 55m

C$ 894

Green BayToronto

GRB - YYZ

GRBYYZ

Green Bay Austin-Straubel

Mon 24/8

12:03 p.m.-6:34 p.m.

1 stop5h 31m

Toronto Pearson Intl

Tue 1/9

10:00 a.m.-8:40 p.m.

2 stops11h 40m

C$ 901

Green BayToronto

GRB - YYZ

GRBYYZ

Green Bay Austin-Straubel

Wed 22/7

6:08 a.m.-11:29 p.m.

1 stop16h 21m

Toronto Pearson Intl

Fri 24/7

6:15 p.m.-10:46 a.m.

1 stop17h 31m

C$ 923
Quickest round-trip

Green BayToronto

GRB - YYZ

GRBYYZ

Green Bay Austin-Straubel

Wed 22/7

6:52 p.m.-11:59 p.m.

1 stop4h 07m

Toronto Pearson Intl

Fri 24/7

7:00 a.m.-10:01 a.m.

1 stop4h 01m

C$ 923

Green BayMontreal

GRB - YUL

GRBYUL

Green Bay Austin-Straubel

Fri 21/8

3:20 p.m.-11:43 a.m.

1 stop19h 23m

Montreal Pierre Elliott Trudeau Intl

Fri 28/8

4:15 p.m.-12:16 a.m.

2 stops9h 01m

C$ 931

Green BayMontreal

GRB - YUL

GRBYUL

Green Bay Austin-Straubel

Wed 22/7

6:08 a.m.-4:47 p.m.

1 stop9h 39m

Montreal Pierre Elliott Trudeau Intl

Fri 24/7

4:16 p.m.-10:46 a.m.

2 stops19h 30m

C$ 932

Green BayMontreal

GRB - YUL

GRBYUL

Green Bay Austin-Straubel

Wed 22/7

9:00 a.m.-5:30 p.m.

1 stop7h 30m

Montreal Pierre Elliott Trudeau Intl

Fri 24/7

6:10 a.m.-10:01 a.m.

1 stop4h 51m

C$ 973

Green BayMontreal

GRB - YUL

GRBYUL

Green Bay Austin-Straubel

Mon 3/8

11:07 a.m.-11:30 p.m.

1 stop11h 23m

Montreal Pierre Elliott Trudeau Intl

Mon 10/8

5:45 p.m.-10:27 a.m.

2 stops17h 42m

C$ 980

Green BayMontreal

GRB - YUL

GRBYUL

Green Bay Austin-Straubel

Wed 22/7

6:50 a.m.-4:20 p.m.

1 stop8h 30m

Montreal Pierre Elliott Trudeau Intl

Fri 24/7

12:47 p.m.-8:30 p.m.

1 stop8h 43m

C$ 984

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/7

Showing 1-10 of 14 resultsSorted by cheapest first
1
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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 7h 14m. 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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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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Fly with Cheapflights

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How does Cheapflights help users find flights from Green Bay to Ontario?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Green Bay to Ontario. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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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