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Cheap flights from Green Bay to Ontario from $363

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Green Bay to Ontario departing on 1/17. 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.
United Airlines Logo
2:39 pm - 9:18 pm
GRB
-
YOW
5h 39m1 stop
United Airlines Logo
5:11 pm - 9:31 pm
YOW
-
GRB
5h 20m1 stop
$363United Airlines
Sat, Jan 17 - Tue, Jan 20
United Airlines Logo
6:31 am - 4:30 pm
GRB
-
YOW
8h 59m2 stops
United Airlines Logo
6:20 am - 10:07 am
YOW
-
GRB
4h 47m1 stop
$368United Airlines
Thu, Jan 15 - Sun, Jan 18
United Airlines Logo
3:42 pm - 9:18 pm
GRB
-
YOW
4h 36m1 stop
United Airlines Logo
9:45 am - 4:47 pm
YOW
-
GRB
8h 02m2 stops
$372United Airlines
Sat, Jan 17 - Tue, Jan 20
United Airlines Logo
3:42 pm - 9:18 pm
GRB
-
YOW
4h 36m1 stop
United Airlines Logo
9:45 am - 4:47 pm
YOW
-
GRB
8h 02m2 stops
$373United Airlines
Sat, Jan 17 - Tue, Jan 20
United Airlines Logo
3:42 pm - 11:54 pm
GRB
-
YOW
7h 12m2 stops
United Airlines Logo
9:45 am - 7:03 pm
YOW
-
GRB
10h 18m2 stops
$378United Airlines
Sat, Jan 17 - Tue, Jan 20
American Airlines Logo
4:53 pm - 12:34 pm
GRB
-
YYZ
18h 41m1 stop
American Airlines Logo
6:00 am - 4:23 pm
YYZ
-
GRB
11h 23m1 stop
$416American Airlines
Fri, Jan 23 - Fri, Jan 30
United Airlines Logo
6:31 am - 4:30 pm
GRB
-
YOW
8h 59m2 stops
United Airlines Logo
5:00 am - 3:07 pm
YOW
-
GRB
11h 07m2 stops
$459United Airlines
Thu, Jan 15 - Sun, Jan 18
American Airlines Logo
4:53 pm - 4:03 pm
GRB
-
YYZ
22h 10m1 stop
American Airlines Logo
12:39 pm - 10:12 pm
YYZ
-
GRB
10h 33m2 stops
$475American Airlines
Fri, Jan 23 - Fri, Jan 30
American Airlines Logo
11:20 am - 10:59 pm
GRB
-
YYZ
10h 39m2 stops
American Airlines Logo
12:39 pm - 10:12 pm
YYZ
-
GRB
10h 33m2 stops
$529American Airlines
Fri, Jan 23 - Fri, Jan 30
Delta Logo
7:00 am - 6:53 pm
GRB
-
YUL
10h 53m2 stops
Delta Logo
12:45 pm - 9:58 pm
YUL
-
GRB
10h 13m1 stop
$692Delta
Tue, Apr 14 - Sun, Apr 19

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
Jan 25
GRB11:20 amGreen Bay Austin-Straubel
22h 33m
1 stop
YYZ10:53 amToronto Pearson Intl
Feb 1
YYZ1:14 pmToronto Pearson Intl
22h 36m
1 stop
GRB10:50 amGreen Bay Austin-Straubel
$417
Find similar
American Airlines
Jan 25
GRB11:20 amGreen Bay Austin-Straubel
22h 33m
1 stop
YYZ10:53 amToronto Pearson Intl
Feb 1
YYZ10:59 amToronto Pearson Intl
12h 13m
2 stops
GRB10:12 pmGreen Bay Austin-Straubel
$504
Find similar
American Airlines
Apr 29
GRB6:20 amGreen Bay Austin-Straubel
15h 30m
2 stops
YUL10:50 pmMontreal Pierre Elliott Trudeau Intl
May 4
YUL12:30 pmMontreal Pierre Elliott Trudeau Intl
23h 15m
1 stop
GRB10:45 amGreen Bay Austin-Straubel
$610
Find similar

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
Jan 17
GRB3:42 pmGreen Bay Austin-Straubel
4h 36m
1 stop
YOW9:18 pmOttawa
Jan 20
YOW5:11 pmOttawa
5h 20m
1 stop
GRB9:31 pmGreen Bay Austin-Straubel
$363
Find similar
United Airlines
Jan 17
GRB2:39 pmGreen Bay Austin-Straubel
8h 15m
2 stops
YOW11:54 pmOttawa
Jan 20
YOW5:11 pmOttawa
5h 20m
1 stop
GRB9:31 pmGreen Bay Austin-Straubel
$373
Find similar
United Airlines
Jan 17
GRB2:39 pmGreen Bay Austin-Straubel
8h 15m
2 stops
YOW11:54 pmOttawa
Jan 20
YOW2:15 pmOttawa
8h 16m
2 stops
GRB9:31 pmGreen Bay Austin-Straubel
$378
Find similar

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 December 11, 2025.
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 BayOttawa

GRB - YOW

GRBYOW

Green Bay Austin-Straubel

Sat 1/17

2:39 pm-9:18 pm

1 stop5h 39m

Ottawa

Tue 1/20

5:11 pm-9:31 pm

1 stop5h 20m

$363

Green BayOttawa

GRB - YOW

GRBYOW

Green Bay Austin-Straubel

Thu 1/15

6:31 am-4:30 pm

2 stops8h 59m

Ottawa

Sun 1/18

6:20 am-10:07 am

1 stop4h 47m

$368

Green BayOttawa

GRB - YOW

GRBYOW

Green Bay Austin-Straubel

Sat 1/17

3:42 pm-9:18 pm

1 stop4h 36m

Ottawa

Tue 1/20

9:45 am-4:47 pm

2 stops8h 02m

$372

Green BayOttawa

GRB - YOW

GRBYOW

Green Bay Austin-Straubel

Sat 1/17

3:42 pm-9:18 pm

1 stop4h 36m

Ottawa

Tue 1/20

9:45 am-4:47 pm

2 stops8h 02m

$373

Green BayOttawa

GRB - YOW

GRBYOW

Green Bay Austin-Straubel

Sat 1/17

3:42 pm-11:54 pm

2 stops7h 12m

Ottawa

Tue 1/20

9:45 am-7:03 pm

2 stops10h 18m

$378

Green BayToronto

GRB - YYZ

GRBYYZ

Green Bay Austin-Straubel

Fri 1/23

4:53 pm-12:34 pm

1 stop18h 41m

Toronto Pearson Intl

Fri 1/30

6:00 am-4:23 pm

1 stop11h 23m

$416

Green BayOttawa

GRB - YOW

GRBYOW

Green Bay Austin-Straubel

Thu 1/15

6:31 am-4:30 pm

2 stops8h 59m

Ottawa

Sun 1/18

5:00 am-3:07 pm

2 stops11h 07m

$459

Green BayToronto

GRB - YYZ

GRBYYZ

Green Bay Austin-Straubel

Fri 1/23

4:53 pm-4:03 pm

1 stop22h 10m

Toronto Pearson Intl

Fri 1/30

12:39 pm-10:12 pm

2 stops10h 33m

$475

Green BayToronto

GRB - YYZ

GRBYYZ

Green Bay Austin-Straubel

Fri 1/23

11:20 am-10:59 pm

2 stops10h 39m

Toronto Pearson Intl

Fri 1/30

12:39 pm-10:12 pm

2 stops10h 33m

$529

Green BayMontreal

GRB - YUL

GRBYUL

Green Bay Austin-Straubel

Tue 4/14

7:00 am-6:53 pm

2 stops10h 53m

Montreal Pierre Elliott Trudeau Intl

Sun 4/19

12:45 pm-9:58 pm

1 stop10h 13m

$692

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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 time of day to depart on your flight to Region of Ontario?

According to our data, the cheapest time of day to fly to Region of Ontario is in the afternoon. momondo users have found flights departing from Green Bay to Region of Ontario in the afternoon for as low as $522. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the morning are often more expensive with an average ticket price of $676.

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 11m

Direct flights

None
The fastest flight from Green Bay to Region of Ontario takes 4h 11m
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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