Which airports can I use when flying from Ontario to Green Bay?

Flights from Ontario to Green Bay usually depart from Ontario (ONT) and arrive at Green Bay Austin-Straubel (GRB).

What cabin classes can I book on flights from Ontario to Green Bay?

Only Economy Class is available on flights from Ontario to Green Bay.

Which airports do connecting flights from Ontario to Green Bay pass through?

Connecting flights from Ontario to Green Bay most commonly pass through: • Chicago O'Hare Intl (ORD) - 81% of one-stop connections • Atlanta Hartsfield-Jackson (ATL) - 19% of one-stop connections

Can I save money by using flexible dates for flights from Ontario to Green Bay?

Yes. Flexible dates can save you up to 55% on flights from Ontario to Green Bay. Wednesday is the cheapest departure day at $364 round-trip on average, while Monday is the most expensive at $794, a difference of $430. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

How long is a flight from Ontario to Green Bay?

There are currently no nonstop flights available from Ontario to Green Bay. Flights with 1 layover take between 7h 33m and 8h 14m in total, depending on the connection.

Do I need a passport to fly from Ontario to Green Bay?

No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.

Have flight prices from Ontario to Green Bay changed much recently?

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $504 to $1,868. That means the highest observed fare was about 4x higher than the lowest one.

How are flight prices from Ontario to Green Bay looking right now?

One-way fares from Ontario to Green Bay are currently lower than usual. Average one-way flight prices are about $327, which is 16% below the typical average for this route.

How much time can I save by choosing a different layover airport from Ontario to Green Bay?

Flying via Chicago O'Hare Intl (ORD) gives the shortest average 1-stop total travel time at 7h 33m, compared with 8h 14m via Atlanta Hartsfield-Jackson (ATL).

What is the time difference between Ontario and Green Bay?

Green Bay is 2 hours ahead of Ontario (Central Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

What car rental options are available at Green Bay Austin-Straubel Airport (GRB)?

Green Bay Austin-Straubel Airport (GRB) hosts 5 major car rental companies, with daily rates averaging $95 for economy cars. Top options include: • Alamo • Avis • Budget • Enterprise Rent-A-Car • Hertz

How much should I expect to pay for a Ontario to Green Bay flight?

Round-trip flights from Ontario to Green Bay range from $364 to $669, with an average of $481 over the past 12 months. Anything below $364 counts as a good deal.

How much is a round-trip flight from Ontario to Green Bay?

Round-trip flights from Ontario to Green Bay typically range from $364 to $669. The lowest price found in the past 5 days was $504, on United Airlines.

Which airline is the cheapest to fly from Ontario to Green Bay?

United Airlines ($504) and Delta ($529) are the cheapest airlines to fly round-trip from Ontario to Green Bay according to KAYAK data over the last 5 days.

What’s the most popular layover airport when flying from Ontario to Green Bay?

Chicago O'Hare Intl (ORD) is the most popular layover for the Ontario to Green Bay route. 81% of KAYAK users who booked 1-stop round-trips over the past 3 months connected via ORD.

What is the cheapest layover airport when flying from Ontario to Green Bay?

Flights via Atlanta Hartsfield-Jackson (ATL) offer the most affordable fares, with an average round-trip price of $585. Based on KAYAK data over the past 3 months.

When flying from Ontario to Green Bay which airport offers the shortest layover?

Chicago O'Hare Intl (ORD) had the shortest average connection time for Ontario to Green Bay layovers at 4h 48m over the past 3 months.

$235 CHEAP FLIGHTS from Ontario to Green Bay (ONT - GRB)

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Cheapest round-trip

$504

Typical prices: $364-$669

United Airlines

Sat 2/3Tue 2/6

ONT - GRB • 2 stops

Cheapest one-way

$235

Typical prices: $339-$629

American Airlines

Fri 11/23

ONT - GRB • 2 stops

When to travel

June

Cheapest • 24% price drop

May

Most popular

Good to know

Top layover airports

Atlanta Hartsfield-Jackson (ATL)

Cheapest • Avg $585 (round-trip)

Chicago O'Hare Intl (ORD)

Shortest trip • 7h 33m (one-way)

Insights

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We hope you love your trip to Green Bay!

Flight Deals

Cheap Flights from Ontario to Green Bay (ONT-GRB)

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Recent round-trip flight deals from Ontario to Green Bay

Wed, Feb 3 - Sat, Feb 6

6:00 am - 9:22 pmONT Ontario-GRB Green Bay Austin-Straubel

13h 22m2 stops Houston George Bush Intcntl Chicago O'Hare Intl

1:22 pm - 6:50 pmGRB Green Bay Austin-Straubel-ONT Ontario

7h 28m1 stop Chicago O'Hare Intl

$504United Airlines

Wed, Jan 27 - Sat, Jan 30

6:00 am - 9:22 pmONT Ontario-GRB Green Bay Austin-Straubel

13h 22m2 stops Houston George Bush Intcntl Chicago O'Hare Intl

1:22 pm - 6:50 pmGRB Green Bay Austin-Straubel-ONT Ontario

7h 28m1 stop Chicago O'Hare Intl

$504United Airlines

Wed, Jan 27 - Sat, Jan 30

9:45 am - 10:58 pmONT Ontario-GRB Green Bay Austin-Straubel

11h 13m2 stops San Francisco Chicago O'Hare Intl

9:55 am - 8:01 pmGRB Green Bay Austin-Straubel-ONT Ontario

12h 06m2 stops Chicago O'Hare Intl San Francisco

$509United Airlines

Wed, Jan 27 - Sat, Jan 30

6:00 am - 5:11 pmONT Ontario-GRB Green Bay Austin-Straubel

9h 11m2 stops Houston George Bush Intcntl Chicago O'Hare Intl

6:15 am - 5:35 pmGRB Green Bay Austin-Straubel-ONT Ontario

13h 20m2 stops Chicago O'Hare Intl San Francisco

$509United Airlines

Tue, Nov 17 - Sat, Nov 21

12:18 pm - 10:29 pmONT Ontario-GRB Green Bay Austin-Straubel

8h 11m1 stop Atlanta Hartsfield-Jackson

7:00 am - 7:49 pmGRB Green Bay Austin-Straubel-ONT Ontario

14h 49m2 stops Detroit Metropolitan Wayne County Atlanta Hartsfield-Jackson

$529Delta

Tue, Nov 17 - Sat, Nov 21

1:23 pm - 12:06 amONT Ontario-GRB Green Bay Austin-Straubel

8h 43m2 stops Phoenix Sky Harbor Intl Chicago O'Hare Intl

10:04 am - 10:36 pmGRB Green Bay Austin-Straubel-ONT Ontario

14h 32m2 stops Chicago O'Hare Intl Dallas/Fort Worth

$532American Airlines

Sat, Dec 12 - Mon, Dec 14

1:23 pm - 12:20 amONT Ontario-GRB Green Bay Austin-Straubel

8h 57m2 stops Phoenix Sky Harbor Intl Chicago O'Hare Intl

8:21 pm - 8:45 amGRB Green Bay Austin-Straubel-ONT Ontario

14h 24m2 stops Chicago O'Hare Intl Phoenix Sky Harbor Intl

$582American Airlines

Wed, Dec 30 - Wed, Dec 30

6:00 am - 3:00 pmONT Ontario-GRB Green Bay Austin-Straubel

7h 00m1 stop Chicago O'Hare Intl

7:16 pm - 6:50 pmGRB Green Bay Austin-Straubel-ONT Ontario

25h 34m2 stops Chicago O'Hare Intl Dallas/Fort Worth

$658American Airlines

Fri, Dec 25 - Mon, Dec 28

11:14 am - 11:13 pmONT Ontario-GRB Green Bay Austin-Straubel

9h 59m1 stop Atlanta Hartsfield-Jackson

5:30 am - 10:04 amGRB Green Bay Austin-Straubel-ONT Ontario

30h 34m1 stop Atlanta Hartsfield-Jackson

$728Delta

Tue, Dec 22 - Mon, Dec 28

11:14 am - 11:13 pmONT Ontario-GRB Green Bay Austin-Straubel

9h 59m1 stop Atlanta Hartsfield-Jackson

5:30 am - 10:04 amGRB Green Bay Austin-Straubel-ONT Ontario

30h 34m1 stop Atlanta Hartsfield-Jackson

$735Delta

Booking Insights

Price, demand and travel trends for Ontario to Green Bay flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

Prices

Airlines

Layovers

How much is a round-trip flight from Ontario to Green Bay? This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Ontario to Green Bay departing in february.

Find deals

High season	May
Cheapest flight	$235

The most popular month to fly with an average 64% increase in travelers.

One-way flight from Ontario to Green Bay

When to book flights from Ontario to Green Bay

Are your dates flexible? Find out the best times to travel from Ontario to Green Bay based on our flight data from the last year. Discover the cheapest month and even day to fly.

Estimated round-trip price

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

What cabin classes can I book on flights from Ontario to Green Bay?
Only Economy Class is available on flights from Ontario to Green Bay.
How long is a flight from Ontario to Green Bay?
There are currently no nonstop flights available from Ontario to Green Bay. Flights with 1 layover take between 7h 33m and 8h 14m in total, depending on the connection.
Do I need a passport to fly from Ontario to Green Bay?
No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.
How much should I expect to pay for a Ontario to Green Bay flight?
Round-trip flights from Ontario to Green Bay range from $364 to $669, with an average of $481 over the past 12 months. Anything below $364 counts as a good deal.
Have flight prices from Ontario to Green Bay changed much recently?
Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $504 to $1,868. That means the highest observed fare was about 4x higher than the lowest one.
How are flight prices from Ontario to Green Bay looking right now?
One-way fares from Ontario to Green Bay are currently lower than usual. Average one-way flight prices are about $327, which is 16% below the typical average for this route.
What car rental options are available at Green Bay Austin-Straubel Airport (GRB)?
Green Bay Austin-Straubel Airport (GRB) hosts 5 major car rental companies, with daily rates averaging $95 for economy cars. Top options include:

• Alamo
• Avis
• Budget
• Enterprise Rent-A-Car
• Hertz
Which airports can I use when flying from Ontario to Green Bay?
Flights from Ontario to Green Bay usually depart from Ontario (ONT) and arrive at Green Bay Austin-Straubel (GRB).
Which airports do connecting flights from Ontario to Green Bay pass through?
Connecting flights from Ontario to Green Bay most commonly pass through:

• Chicago O'Hare Intl (ORD) - 81% of one-stop connections
• Atlanta Hartsfield-Jackson (ATL) - 19% of one-stop connections
Can I save money by using flexible dates for flights from Ontario to Green Bay?
Yes. Flexible dates can save you up to 55% on flights from Ontario to Green Bay. Wednesday is the cheapest departure day at $364 round-trip on average, while Monday is the most expensive at $794, a difference of $430.

KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.
How much time can I save by choosing a different layover airport from Ontario to Green Bay?
Flying via Chicago O'Hare Intl (ORD) gives the shortest average 1-stop total travel time at 7h 33m, compared with 8h 14m via Atlanta Hartsfield-Jackson (ATL).
What is the time difference between Ontario and Green Bay?
Green Bay is 2 hours ahead of Ontario (Central Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

If your dates are flexible, aim for a Wednesday departure and avoid flying on Monday. On this route, Wednesday flights average $364, about $430 less than Monday fares (54% savings) based on the last 12 months.
If you can choose when to travel, plan your Ontario to Green Bay trip for June. Fares historically average $364 round-trip in that month - typically $596 less than the most expensive month, which is October (based on the last 12 months).
If you're arriving late at night and need somewhere to stay, check out these hotels close to Green Bay Austin-Straubel Airport.

• Oneida Casino Hotel
• Wingate by Wyndham Green Bay/Airport
• Extended Stay Airport

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ONT - GRB

$235 Find Cheap Flights from Ontario to Green Bay - Compare and Save

Everything you should know

Cheap Flights from Ontario to Green Bay (ONT-GRB)

Recent round-trip flight deals from Ontario to Green Bay

Recent one-way flight deals from Ontario to Green Bay

Recent last minute flight deals from Ontario to Green Bay

Price, demand and travel trends for Ontario to Green Bay flights

How much is a round-trip flight from Ontario to Green Bay?

Which airline is the cheapest to fly from Ontario to Green Bay?

What’s the most popular layover airport when flying from Ontario to Green Bay?

What is the cheapest layover airport when flying from Ontario to Green Bay?

When flying from Ontario to Green Bay which airport offers the shortest layover?

Key details for Ontario to Green Bay flights

High season

Cheapest flight

When to book flights from Ontario to Green Bay

Your Ontario to Green Bay flight questions, answered

Your guide to booking Ontario to Green Bay flights

More options for your flight from Ontario to Green Bay

Complete your trip to Green Bay with a hotel stay or car rental

Information on your arrival and departure airports

Cabin class types available on flights from Ontario to Green Bay

Find direct flights to and from Ontario and Green Bay

Flights from domestic origins to Green Bay

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