Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Ontario to Green Bay from $159

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Green Bay departing on 9/23. 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

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Ontario to Green Bay (ONT-GRB)

Cheap round-trip flights

Delta Logo
11:55 am - 11:00 pmONT-GRB
9h 05m1 stop
Delta Logo
4:13 pm - 10:41 pmGRB-ONT
8h 28m2 stops
$294Delta
Find Deal
mar., sep. 23 - sáb., oct. 4
Delta Logo
10:00 pm - 11:23 amONT-GRB
11h 23m2 stops
Delta Logo
6:05 am - 12:17 pmGRB-ONT
8h 12m2 stops
$299Delta
Find Deal
mar., sep. 23 - sáb., oct. 4
Delta Logo
12:00 pm - 9:58 pmONT-GRB
7h 58m1 stop
Delta Logo
5:30 am - 11:24 amGRB-ONT
7h 54m1 stop
$303Delta
Find Deal
mié., dic. 3 - mié., dic. 10
Delta Logo
12:00 pm - 9:58 pmONT-GRB
7h 58m1 stop
Delta Logo
5:30 am - 11:24 amGRB-ONT
7h 54m1 stop
$317Delta
Find Deal
mar., dic. 9 - mié., dic. 10
United Airlines Logo
7:00 am - 4:50 pmONT-GRB
7h 50m1 stop
United Airlines Logo
5:30 pm - 10:30 pmGRB-ONT
7h 00m1 stop
$379United Airlines
Find Deal
sáb., sep. 20 - mar., sep. 23
United Airlines Logo
6:50 pm - 10:05 amONT-GRB
13h 15m2 stops
United Airlines Logo
1:20 pm - 6:06 pmGRB-ONT
6h 46m1 stop
$384United Airlines
Find Deal
lun., sep. 22 - sáb., oct. 4
American Airlines Logo
6:47 am - 5:37 pmONT-GRB
8h 50m2 stops
American Airlines Logo
6:08 am - 1:43 pmGRB-ONT
9h 35m2 stops
$389American Airlines
Find Deal
mié., dic. 3 - mié., dic. 10
United Airlines Logo
6:50 pm - 10:05 amONT-GRB
13h 15m2 stops
United Airlines Logo
5:30 pm - 10:30 pmGRB-ONT
7h 00m1 stop
$409United Airlines
Find Deal
vie., sep. 12 - lun., sep. 15
American Airlines Logo
8:05 pm - 9:28 amONT-GRB
11h 23m2 stops
American Airlines Logo
6:08 am - 1:43 pmGRB-ONT
9h 35m2 stops
$439American Airlines
Find Deal
vie., dic. 5 - jue., dic. 11
American Airlines Logo
6:47 am - 5:37 pmONT-GRB
8h 50m2 stops
American Airlines Logo
6:28 pm - 8:35 amGRB-ONT
16h 07m2 stops
$447American Airlines
Find Deal
mié., dic. 3 - mar., dic. 9

American Airlines flights from Ontario to Green Bay

Our best American Airlines deals on Ontario to Green Bay flight tickets
American Airlines
Dec 3
ONT6:47 amOntario
8h 50m
2 stops
GRB5:37 pmGreen Bay Austin-Straubel
Dec 10
GRB6:08 amGreen Bay Austin-Straubel
9h 35m
2 stops
ONT1:43 pmOntario
$389
Find similar
American Airlines
Dec 5
ONT8:05 pmOntario
11h 23m
2 stops
GRB9:28 amGreen Bay Austin-Straubel
Dec 11
GRB6:08 amGreen Bay Austin-Straubel
9h 35m
2 stops
ONT1:43 pmOntario
$439
Find similar
American Airlines
Dec 3
ONT6:47 amOntario
8h 50m
2 stops
GRB5:37 pmGreen Bay Austin-Straubel
Dec 9
GRB6:28 pmGreen Bay Austin-Straubel
16h 07m
2 stops
ONT8:35 amOntario
$447
Find similar

Delta flights from Ontario to Green Bay

Our best Delta deals on Ontario to Green Bay flight tickets
Delta
Sep 23
ONT11:55 amOntario
9h 05m
1 stop
GRB11:00 pmGreen Bay Austin-Straubel
Oct 4
GRB4:13 pmGreen Bay Austin-Straubel
8h 28m
2 stops
ONT10:41 pmOntario
$294
Find similar
Delta
Sep 23
ONT10:00 pmOntario
11h 23m
2 stops
GRB11:23 amGreen Bay Austin-Straubel
Oct 4
GRB6:05 amGreen Bay Austin-Straubel
8h 12m
2 stops
ONT12:17 pmOntario
$299
Find similar
Delta
Dec 3
ONT12:00 pmOntario
7h 58m
1 stop
GRB9:58 pmGreen Bay Austin-Straubel
Dec 10
GRB5:30 amGreen Bay Austin-Straubel
7h 54m
1 stop
ONT11:24 amOntario
$303
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Ontario to Green Bay 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 agosto 12, 2025.
Use the filters below to find and compare flights from Ontario to Green Bay that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

OntarioGreen Bay

ONT - GRB

ONTGRB

Ontario

mar. 9/23

11:55 am-11:00 pm

1 stop9h 05m

Green Bay Austin-Straubel

sáb. 10/4

4:13 pm-10:41 pm

2 stops8h 28m

$294

OntarioGreen Bay

ONT - GRB

ONTGRB

Ontario

mar. 9/23

10:00 pm-11:23 am

2 stops11h 23m

Green Bay Austin-Straubel

sáb. 10/4

6:05 am-12:17 pm

2 stops8h 12m

$299

OntarioGreen Bay

ONT - GRB

ONTGRB

Ontario

mié. 12/3

12:00 pm-9:58 pm

1 stop7h 58m

Green Bay Austin-Straubel

mié. 12/10

5:30 am-11:24 am

1 stop7h 54m

$303

OntarioGreen Bay

ONT - GRB

ONTGRB

Ontario

mar. 12/9

12:00 pm-9:58 pm

1 stop7h 58m

Green Bay Austin-Straubel

mié. 12/10

5:30 am-11:24 am

1 stop7h 54m

$317

OntarioGreen Bay

ONT - GRB

ONTGRB

Ontario

sáb. 9/20

7:00 am-4:50 pm

1 stop7h 50m

Green Bay Austin-Straubel

mar. 9/23

5:30 pm-10:30 pm

1 stop7h 00m

$379

OntarioGreen Bay

ONT - GRB

ONTGRB

Ontario

lun. 9/22

6:50 pm-10:05 am

2 stops13h 15m

Green Bay Austin-Straubel

sáb. 10/4

1:20 pm-6:06 pm

1 stop6h 46m

$384

OntarioGreen Bay

ONT - GRB

ONTGRB

Ontario

mié. 12/3

6:47 am-5:37 pm

2 stops8h 50m

Green Bay Austin-Straubel

mié. 12/10

6:08 am-1:43 pm

2 stops9h 35m

$389

OntarioGreen Bay

ONT - GRB

ONTGRB

Ontario

vie. 9/12

6:50 pm-10:05 am

2 stops13h 15m

Green Bay Austin-Straubel

lun. 9/15

5:30 pm-10:30 pm

1 stop7h 00m

$409

OntarioGreen Bay

ONT - GRB

ONTGRB

Ontario

vie. 12/5

8:05 pm-9:28 am

2 stops11h 23m

Green Bay Austin-Straubel

jue. 12/11

6:08 am-1:43 pm

2 stops9h 35m

$439

OntarioGreen Bay

ONT - GRB

ONTGRB

Ontario

mié. 12/3

6:47 am-5:37 pm

2 stops8h 50m

Green Bay Austin-Straubel

mar. 12/9

6:28 pm-8:35 am

2 stops16h 07m

$447

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Green Bay from

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

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 day to depart on your flight to Green Bay?

The cheapest day to depart from Ontario to Green Bay is on a Thursday when prices can be found for as low as $493. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Ontario to Green Bay for around $765.

What is the cheapest time of day to depart on your flight to Green Bay?

Our most recent data shows that the best time of day to fly to Green Bay is in the evening. Flights from Ontario to Green Bay during this time can be as low as $438. At noon is when there is more demand to fly to Green Bay, so prices are often more expensive at around $507 per ticket.

Can stopping save me money on Ontario to Green Bay flights?

You could potentially save up to 34% on your flight if you consider stops on a Ontario to Green Bay flight.

When to book flights from Ontario to Green Bay

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Green Bay according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Ontario to Green Bay (ONT to GRB) flight deals and tips

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

Best Price Found

$159

Fastest flight time

7h 50m

Direct flights

None

Airports in Green Bay

1 airport
The best one-way flight to Green Bay from Ontario in the past 72 hours is $159. The best round-trip flight deal from Ontario to Green Bay found on momondo in the last 72 hours is $294.
The fastest flight from Ontario to Green Bay takes 7h 50m
There are no direct flights from Ontario to Green Bay. Popular non-direct route for this connection is Ontario Airport - Green Bay Austin-Straubel Airport.
There is 1 airport near Green Bay: Green Bay Austin-Straubel (GRB)
Search flight deals

  • How far is Ontario to Green Bay Austin-Straubel by plane?

    The straight-line distance from Ontario to Green Bay Austin-Straubel is 1727.6 mi. By plane, this route typically takes 7h 50m.

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

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

  • How many operators does momondo search for flights from Ontario Airport to Green Bay Austin-Straubel Airport?

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Green Bay Austin-Straubel Airport.

  • What documentation or ID do you need to fly to Green Bay Austin-Straubel Airport?

    The necessary travel and health documents for your Green Bay Austin-Straubel Airport 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.

  • What is the most popular airline from Ontario to Green Bay?

Best airlines flying from Ontario to Green Bay

Compare and see reviews for airlines that fly from Ontario to Green Bay with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $288Free CancellationRating
7.4
8,920 reviews
Search United Airlines flights
DeltaPriceFrom $371Free CancellationRating
8.0
7,979 reviews
Search Delta flights

Traveling to a place near Green Bay?

Book flights to Green Bay if you plan to visit one of these locations
Sturgeon Bay
Manitowoc
Marinette
Shawano
De Pere

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Ontario to Green Bay. momondo saves you time and could save you money on your trip.

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

Yes. momondo allows you to filter the results for Ontario to Green Bay flights to just show those with flexible booking policies.

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

momondo provides multiple filters to help you find the best flight to Green Bay from Ontario. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Of course. momondo tracks the price of Ontario to Green Bay flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Green Bay trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
dom. 8/17
dom. 8/24
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States