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Cheap flights from Green Bay to Ontario from C$ 475

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 26/4. Fares are subject to change and may not be available on all flights or dates of travel.
GRB — YYZ
2 Apr — 9 Apr1
1 adult

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 28 March 2025.

Round-trip from

C$ 739

One-way from

C$ 475
Delta
  • Delta
  • 24/5-28/5
  • 3 total stops
  • 17h 31m total
  • Green Bay to Ontario
Search Deals
United Airlines
  • United Airlines
  • 26/4
  • 2 total stops
  • 9h 24m total
  • Green Bay to Ontario
Search Deals

Find flight deals from Green Bay to Ontario

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 28 March 2025.

Sat 24/54:13 p.m.GRB - YUL
1 stop6h 06mDelta
Wed 28/511:00 a.m.YUL - GRB
2 stops11h 25mDelta
Deal found 27/3C$ 739
Wed 30/411:07 a.m.GRB - YYZ
1 stop5h 02mDelta
Sun 4/512:54 p.m.YYZ - GRB
1 stop9h 37mDelta
Deal found 28/3C$ 749
Sat 24/51:10 p.m.GRB - YUL
1 stop7h 19mUnited Airlines
Wed 28/56:15 a.m.YUL - GRB
1 stop4h 56mUnited Airlines
Deal found 27/3C$ 759
Wed 30/411:19 a.m.GRB - YYZ
2 stops10h 41mAmerican Airlines
Sun 4/56:20 p.m.YYZ - GRB
1 stop5h 48mAmerican Airlines
Deal found 28/3C$ 763
Wed 30/43:45 p.m.GRB - YYZ
2 stops7h 09mUnited Airlines
Sun 4/57:20 a.m.YYZ - GRB
2 stops8h 50mUnited Airlines
Deal found 28/3C$ 770
Sat 24/511:27 a.m.GRB - YUL
2 stops21h 23mAmerican Airlines
Wed 28/512:56 p.m.YUL - GRB
2 stops11h 14mAmerican Airlines
Deal found 27/3C$ 780
Mon 26/56:30 a.m.GRB - YYZ
2 stops29h 16mWestJet
Sat 31/57:00 p.m.YYZ - GRB
2 stops27h 23mWestJet
Deal found 26/3C$ 2,230

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 28 March 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 BayMontreal

GRB - YUL

GRBYUL

Green Bay Austin-Straubel

Sat 24/5

4:13 p.m.-11:19 p.m.

1 stop6h 06m

Montreal Pierre Elliott Trudeau Intl

Wed 28/5

11:00 a.m.-9:25 p.m.

2 stops11h 25m

C$ 739

Green BayToronto

GRB - YYZ

GRBYYZ

Green Bay Austin-Straubel

Wed 30/4

11:07 a.m.-5:09 p.m.

1 stop5h 02m

Toronto Pearson Intl

Sun 4/5

12:54 p.m.-9:31 p.m.

1 stop9h 37m

C$ 749

Green BayMontreal

GRB - YUL

GRBYUL

Green Bay Austin-Straubel

Sat 24/5

1:10 p.m.-9:29 p.m.

1 stop7h 19m

Montreal Pierre Elliott Trudeau Intl

Wed 28/5

6:15 a.m.-10:11 a.m.

1 stop4h 56m

C$ 759

Green BayToronto

GRB - YYZ

GRBYYZ

Green Bay Austin-Straubel

Wed 30/4

11:19 a.m.-11:00 p.m.

2 stops10h 41m

Toronto Pearson Intl

Sun 4/5

6:20 p.m.-11:08 p.m.

1 stop5h 48m

C$ 763

Green BayToronto

GRB - YYZ

GRBYYZ

Green Bay Austin-Straubel

Wed 30/4

3:45 p.m.-11:54 p.m.

2 stops7h 09m

Toronto Pearson Intl

Sun 4/5

7:20 a.m.-3:10 p.m.

2 stops8h 50m

C$ 770

Green BayMontreal

GRB - YUL

GRBYUL

Green Bay Austin-Straubel

Sat 24/5

11:27 a.m.-9:50 a.m.

2 stops21h 23m

Montreal Pierre Elliott Trudeau Intl

Wed 28/5

12:56 p.m.-11:10 p.m.

2 stops11h 14m

C$ 780

Green BayToronto

GRB - YYZ

GRBYYZ

Green Bay Austin-Straubel

Mon 26/5

6:30 a.m.-12:46 p.m.

2 stops29h 16m

Toronto Pearson Intl

Sat 31/5

7:00 p.m.-9:23 p.m.

2 stops27h 23m

C$ 2,230

Green BayToronto

GRB - YYZ

GRBYYZ

Green Bay Austin-Straubel

Sat 26/4

6:45 a.m.-5:09 p.m.

2 stops9h 24m

C$ 475

Green BayToronto

GRB - YYZ

GRBYYZ

Green Bay Austin-Straubel

Sat 26/4

6:24 a.m.-11:59 a.m.

1 stop4h 35m

C$ 490

Flights are sorted by cheapest round-trip flights first.

Deals found on 27/3

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

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Region of Ontario ranges from 51.0 - 83.0 mm per month. June is typically the wettest month, when rainfall can reach 83.0 mm. February is typically the driest time to visit Region of Ontario when rainfall is around 51.0 mm.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Region of Ontario, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 21.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -6.0 C).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated 28 March 2025.
Read reviews from past customers who have flown Delta, United Airlines and American Airlines from Green Bay to Ontario. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,897 reviews
Check prices

Comfort

8.0

Crew

8.5

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,897 reviews
Delta
8.0
Very good
7,897 reviews
Check prices

Comfort

8.0

Crew

8.5

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,603 reviews
Delta
8.0
Very good
7,897 reviews
Check prices

Comfort

8.0

Crew

8.5

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,897 reviews
Check prices

Comfort

8.0

Crew

8.5

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
WestJet
7.2
Good
2,785 reviews
Delta
8.0
Very good
7,897 reviews
Check prices

Comfort

8.0

Crew

8.5

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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.

  • 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.

  • What is the cheapest month to book a flight from Green Bay to Region of Ontario?

    Currently, January is the cheapest month in which you can book a flight from Green Bay to Region of Ontario (average of C$ 167). Flying from Green Bay to Region of Ontario in July is currently the most expensive (average of C$ 258). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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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