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Cheap flights from Green Bay to Ontario from $332

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Green Bay to Ontario departing on 5/19. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
6:32 pm - 4:03 pm
GRB
-
YYZ
20h 31m
1 stop
American Airlines Logo
4:44 pm - 9:30 am
YYZ
-
GRB
17h 46m
1 stop
$406American Airlines
Sat, Feb 28 - Thu, Mar 5
American Airlines Logo
6:32 pm - 12:30 pm
GRB
-
YYZ
16h 58m
1 stop
American Airlines Logo
1:55 pm - 11:32 pm
YYZ
-
GRB
10h 37m
2 stops
$513American Airlines
Sat, Feb 28 - Thu, Mar 5
United Airlines Logo
2:54 pm - 11:19 pm
GRB
-
YYZ
7h 25m
1 stop
United Airlines Logo
12:05 pm - 9:42 pm
YYZ
-
GRB
10h 37m
1 stop
$531United Airlines
Thu, Mar 26 - Sun, Mar 29
United Airlines Logo
2:54 pm - 11:19 pm
GRB
-
YYZ
7h 25m
1 stop
United Airlines Logo
8:50 am - 9:42 pm
YYZ
-
GRB
13h 52m
1 stop
$546United Airlines
Thu, Mar 26 - Sun, Mar 29
American Airlines Logo
5:00 am - 10:44 pm
GRB
-
YUL
16h 44m
2 stops
American Airlines Logo
3:45 pm - 9:26 am
YUL
-
GRB
18h 41m
1 stop
$555American Airlines
Thu, Mar 12 - Thu, Mar 19
American Airlines Logo
2:59 pm - 11:04 am
GRB
-
YYZ
19h 05m
1 stop
American Airlines Logo
1:15 pm - 11:38 pm
YYZ
-
GRB
11h 23m
1 stop
$578American Airlines
Fri, May 22 - Tue, May 26
Delta Logo
5:17 pm - 11:13 pm
GRB
-
YUL
4h 56m
1 stop
Delta Logo
12:50 pm - 8:36 pm
YUL
-
GRB
8h 46m
1 stop
$639Delta
Thu, Mar 12 - Thu, Mar 19
United Airlines Logo
5:24 pm - 9:58 am
GRB
-
YYZ
15h 34m
1 stop
United Airlines Logo
6:50 am - 7:03 pm
YYZ
-
GRB
13h 13m
1 stop
$642United Airlines
Sat, Feb 7 - Tue, Feb 10
Delta Logo
4:19 pm - 11:40 pm
GRB
-
YUL
6h 21m
1 stop
Delta Logo
4:45 pm - 8:36 pm
YUL
-
GRB
4h 51m
1 stop
$661Delta
Tue, Mar 17 - Thu, Mar 19
Delta Logo
5:17 pm - 11:13 pm
GRB
-
YUL
4h 56m
1 stop
Delta Logo
12:50 pm - 8:36 pm
YUL
-
GRB
8h 46m
1 stop
$675Delta
Fri, Mar 13 - Fri, Mar 20

American Airlines flights from Green Bay to Region of Ontario

Our best American Airlines deals on Green Bay to Region of Ontario flight tickets
American Airlines
Feb 28
GRB6:32 pmGreen Bay Austin-Straubel
20h 31m
1 stop
YYZ4:03 pmToronto Pearson Intl
Mar 5
YYZ4:44 pmToronto Pearson Intl
17h 46m
1 stop
GRB9:30 amGreen Bay Austin-Straubel
$406
American Airlines
Feb 28
GRB6:32 pmGreen Bay Austin-Straubel
16h 58m
1 stop
YYZ12:30 pmToronto Pearson Intl
Mar 5
YYZ1:55 pmToronto Pearson Intl
10h 37m
2 stops
GRB11:32 pmGreen Bay Austin-Straubel
$513
American Airlines
Mar 12
GRB5:00 amGreen Bay Austin-Straubel
16h 44m
2 stops
YUL10:44 pmMontreal Pierre Elliott Trudeau Intl
Mar 19
YUL3:45 pmMontreal Pierre Elliott Trudeau Intl
18h 41m
1 stop
GRB9:26 amGreen Bay Austin-Straubel
$555

United Airlines flights from Green Bay to Region of Ontario

Our best United Airlines deals on Green Bay to Region of Ontario flight tickets
United Airlines
Mar 26
GRB2:54 pmGreen Bay Austin-Straubel
7h 25m
1 stop
YYZ11:19 pmToronto Pearson Intl
Mar 29
YYZ12:05 pmToronto Pearson Intl
10h 37m
1 stop
GRB9:42 pmGreen Bay Austin-Straubel
$531
United Airlines
Mar 26
GRB2:54 pmGreen Bay Austin-Straubel
7h 25m
1 stop
YYZ11:19 pmToronto Pearson Intl
Mar 29
YYZ8:50 amToronto Pearson Intl
13h 52m
1 stop
GRB9:42 pmGreen Bay Austin-Straubel
$546
United Airlines
Feb 4
GRB8:20 amGreen Bay Austin-Straubel
11h 58m
1 stop
YOW9:18 pmOttawa
Feb 8
YOW6:20 amOttawa
9h 47m
1 stop
GRB3:07 pmGreen Bay Austin-Straubel
$606

momondo Fare Finder

 
Customize your flight search to find flights from Green Bay to Region of 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, momondo users made 832,500 searches. Data last updated January 28, 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

Green BayToronto

GRB - YYZ

GRBYYZ

Green Bay Austin-Straubel

Sat 2/28

6:32 pm-4:03 pm

1 stop20h 31m

Toronto Pearson Intl

Thu 3/5

4:44 pm-9:30 am

1 stop17h 46m

$406

Green BayToronto

GRB - YYZ

GRBYYZ

Green Bay Austin-Straubel

Sat 2/28

6:32 pm-12:30 pm

1 stop16h 58m

Toronto Pearson Intl

Thu 3/5

1:55 pm-11:32 pm

2 stops10h 37m

$513

Green BayToronto

GRB - YYZ

GRBYYZ

Green Bay Austin-Straubel

Thu 3/26

2:54 pm-11:19 pm

1 stop7h 25m

Toronto Pearson Intl

Sun 3/29

12:05 pm-9:42 pm

1 stop10h 37m

$531

Green BayToronto

GRB - YYZ

GRBYYZ

Green Bay Austin-Straubel

Thu 3/26

2:54 pm-11:19 pm

1 stop7h 25m

Toronto Pearson Intl

Sun 3/29

8:50 am-9:42 pm

1 stop13h 52m

$546

Green BayMontreal

GRB - YUL

GRBYUL

Green Bay Austin-Straubel

Thu 3/12

5:00 am-10:44 pm

2 stops16h 44m

Montreal Pierre Elliott Trudeau Intl

Thu 3/19

3:45 pm-9:26 am

1 stop18h 41m

$555

Green BayToronto

GRB - YYZ

GRBYYZ

Green Bay Austin-Straubel

Fri 5/22

2:59 pm-11:04 am

1 stop19h 05m

Toronto Pearson Intl

Tue 5/26

1:15 pm-11:38 pm

1 stop11h 23m

$578

Green BayMontreal

GRB - YUL

GRBYUL

Green Bay Austin-Straubel

Thu 3/12

5:17 pm-11:13 pm

1 stop4h 56m

Montreal Pierre Elliott Trudeau Intl

Thu 3/19

12:50 pm-8:36 pm

1 stop8h 46m

$639

Green BayToronto

GRB - YYZ

GRBYYZ

Green Bay Austin-Straubel

Sat 2/7

5:24 pm-9:58 am

1 stop15h 34m

Toronto Pearson Intl

Tue 2/10

6:50 am-7:03 pm

1 stop13h 13m

$642

Green BayMontreal

GRB - YUL

GRBYUL

Green Bay Austin-Straubel

Tue 3/17

4:19 pm-11:40 pm

1 stop6h 21m

Montreal Pierre Elliott Trudeau Intl

Thu 3/19

4:45 pm-8:36 pm

1 stop4h 51m

$661

Green BayMontreal

GRB - YUL

GRBYUL

Green Bay Austin-Straubel

Fri 3/13

5:17 pm-11:13 pm

1 stop4h 56m

Montreal Pierre Elliott Trudeau Intl

Fri 3/20

12:50 pm-8:36 pm

1 stop8h 46m

$675

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 resultsSorted by cheapest first
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See travel insights to Ontario from

How to get the cheapest flight ticket from Green Bay to Region of Ontario

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Green Bay Austin-Straubel to Ontario?

United Airlines, American Airlines, and Delta are the most popular carriers operating from Green Bay Austin-Straubel to Ontario

Cheap Green Bay to Region of Ontario flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Green Bay to Region of Ontario

Fastest flight time

4h 14m

Direct flights

None
The fastest flight from Green Bay to Region of Ontario takes 4h 14m
There are no direct flights from Green Bay to Region of Ontario. There are no popular flight routes from Green Bay to Region of Ontario.
Search flight deals

  • When did momondo last update prices for flights from Green Bay Austin-Straubel Airport to Ontario?

    Prices for flights from Green Bay Austin-Straubel Airport to Ontario were last updated today.

  • How old do you have to be to fly from Green Bay Austin-Straubel Airport to Ontario?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Green Bay Austin-Straubel Airport to Ontario.

  • What documentation or ID do you need to fly to Ontario?

    The necessary travel and health documents for your Ontario trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Green Bay to Ontario?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Ontario from Green Bay.

Can I find flights from Green Bay to Ontario with flexible booking policies on momondo?

Yes. All flights to Ontario from Green Bay on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Green Bay to Ontario?

momondo helps you find the best flight between Green Bay and Ontario by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Green Bay to Ontario right now. Can momondo alert me if prices change?

Price alerts on flights to Ontario from Green Bay are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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