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

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

What airlines fly to Ontario?

American Airlines, Delta and United Airlines are the top three most popular airlines that fly to Ontario from Green Bay according to our data. American Airlines is the first choice among our users, with 43% of people opting to fly with this airline when traveling to Ontario. Keep in mind that there are 4 different airlines that fly to Ontario on a routine basis, so you have a few additional options to choose from.

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

Prices for flights from Green Bay Austin-Straubel Airport to Ontario Airport are updated daily.

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

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Green Bay Austin-Straubel Airport to Ontario Airport.

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

The travel and health documents required for your trip to Ontario Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Ontario Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$159 Cheap Flights from Green Bay to Ontario (GRB-ONT) in 2025

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0 bags

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

Round-trip

One-way

Last minute

Cheap round-trip flights

11:11 am - 6:16 pmGRB-ONT

9h 05m2 stops

1:10 pm - 9:18 amONT-GRB

18h 08m2 stops

$363American Airlines

Find Deal

Sat, Sep 20 - Wed, Sep 24

5:30 pm - 10:30 pmGRB-ONT

7h 00m1 stop

6:50 pm - 10:05 amONT-GRB

13h 15m2 stops

$384United Airlines

Find Deal

Sat, Sep 20 - Tue, Sep 23

5:24 pm - 10:26 pmGRB-ONT

7h 02m1 stop

6:39 pm - 10:07 amONT-GRB

13h 28m2 stops

$409United Airlines

Find Deal

Sun, Jan 25 - Mon, Feb 2

1:22 pm - 9:25 pmGRB-ONT

10h 03m2 stops

6:50 pm - 10:05 amONT-GRB

13h 15m2 stops

$414United Airlines

Find Deal

Sat, Sep 20 - Tue, Sep 23

5:34 am - 10:42 amGRB-ONT

7h 08m1 stop

1:15 pm - 4:11 pmONT-GRB

24h 56m2 stops

$422Delta

Find Deal

Sat, Sep 27 - Wed, Oct 1

1:20 pm - 6:06 pmGRB-ONT

6h 46m1 stop

6:36 pm - 10:05 amONT-GRB

13h 29m2 stops

$434United Airlines

Find Deal

Sat, Sep 27 - Wed, Oct 1

3:30 pm - 10:26 pmGRB-ONT

8h 56m1 stop

7:00 am - 4:43 pmONT-GRB

7h 43m1 stop

$457United Airlines

Find Deal

Sat, Feb 14 - Wed, Feb 18

4:13 pm - 10:41 pmGRB-ONT

8h 28m2 stops

1:15 pm - 4:11 pmONT-GRB

24h 56m2 stops

$482Delta

Find Deal

Sat, Sep 27 - Wed, Oct 1

5:34 am - 10:42 amGRB-ONT

7h 08m1 stop

10:00 pm - 11:00 pmONT-GRB

23h 00m1 stop

$488Delta

Find Deal

Sat, Sep 27 - Wed, Oct 1

4:39 pm - 9:21 amGRB-ONT

18h 42m2 stops

2:54 pm - 9:16 amONT-GRB

16h 22m2 stops

$535American Airlines

Find Deal

Fri, Sep 19 - Mon, Sep 22

Delta flights from Green Bay to Ontario

Our best Delta deals on Green Bay to Ontario flight tickets

Delta

Sep 27

GRB5:34 amGreen Bay Austin-Straubel

7h 08m

1 stop

ONT10:42 amOntario

Oct 1

ONT1:15 pmOntario

24h 56m

2 stops

GRB4:11 pmGreen Bay Austin-Straubel

$422

Find similar

Delta

Sep 27

GRB4:13 pmGreen Bay Austin-Straubel

8h 28m

2 stops

ONT10:41 pmOntario

Oct 1

ONT1:15 pmOntario

24h 56m

2 stops

GRB4:11 pmGreen Bay Austin-Straubel

$482

Find similar

Delta

Sep 27

GRB5:34 amGreen Bay Austin-Straubel

7h 08m

1 stop

ONT10:42 amOntario

Oct 1

ONT10:00 pmOntario

23h 00m

1 stop

GRB11:00 pmGreen Bay Austin-Straubel

$488

Find similar

United Airlines flights from Green Bay to Ontario

Our best United Airlines deals on Green Bay to Ontario flight tickets

United Airlines

Sep 20

GRB5:30 pmGreen Bay Austin-Straubel

7h 00m

1 stop

ONT10:30 pmOntario

Sep 23

ONT6:50 pmOntario

13h 15m

2 stops

GRB10:05 amGreen Bay Austin-Straubel

$384

Find similar

United Airlines

Jan 25

GRB5:24 pmGreen Bay Austin-Straubel

7h 02m

1 stop

ONT10:26 pmOntario

Feb 2

ONT6:39 pmOntario

13h 28m

2 stops

GRB10:07 amGreen Bay Austin-Straubel

$409

Find similar

United Airlines

Sep 20

GRB1:22 pmGreen Bay Austin-Straubel

10h 03m

2 stops

ONT9:25 pmOntario

Sep 23

ONT6:50 pmOntario

13h 15m

2 stops

GRB10:05 amGreen Bay Austin-Straubel

$414

Find similar

Fly from

Fly to

Route

Depart

Return

Price

Green BayOntario

GRB - ONT

GRBONT

Green Bay Austin-Straubel

Sat 9/20

11:11 am-6:16 pm

2 stops9h 05m

Ontario

Wed 9/24

1:10 pm-9:18 am

2 stops18h 08m

$363

Green BayOntario

GRB - ONT

GRBONT

Green Bay Austin-Straubel

Sat 9/20

5:30 pm-10:30 pm

1 stop7h 00m

Ontario

Tue 9/23

6:50 pm-10:05 am

2 stops13h 15m

$384

Green BayOntario

GRB - ONT

GRBONT

Green Bay Austin-Straubel

Sun 1/25

5:24 pm-10:26 pm

1 stop7h 02m

Ontario

Mon 2/2

6:39 pm-10:07 am

2 stops13h 28m

$409

Green BayOntario

GRB - ONT

GRBONT

Green Bay Austin-Straubel

Sat 9/20

1:22 pm-9:25 pm

2 stops10h 03m

Ontario

Tue 9/23

6:50 pm-10:05 am

2 stops13h 15m

$414

Green BayOntario

GRB - ONT

GRBONT

Green Bay Austin-Straubel

Sat 9/27

5:34 am-10:42 am

1 stop7h 08m

Ontario

Wed 10/1

1:15 pm-4:11 pm

2 stops24h 56m

$422

Green BayOntario

GRB - ONT

GRBONT

Green Bay Austin-Straubel

Sat 9/27

1:20 pm-6:06 pm

1 stop6h 46m

Ontario

Wed 10/1

6:36 pm-10:05 am

2 stops13h 29m

$434

Green BayOntario

GRB - ONT

GRBONT

Green Bay Austin-Straubel

Sat 2/14

3:30 pm-10:26 pm

1 stop8h 56m

Ontario

Wed 2/18

7:00 am-4:43 pm

1 stop7h 43m

$457

Green BayOntario

GRB - ONT

GRBONT

Green Bay Austin-Straubel

Sat 9/27

4:13 pm-10:41 pm

2 stops8h 28m

Ontario

Wed 10/1

1:15 pm-4:11 pm

2 stops24h 56m

$482

Green BayOntario

GRB - ONT

GRBONT

Green Bay Austin-Straubel

Sat 9/27

5:34 am-10:42 am

1 stop7h 08m

Ontario

Wed 10/1

10:00 pm-11:00 pm

1 stop23h 00m

$488

Green BayOntario

GRB - ONT

GRBONT

Green Bay Austin-Straubel

Fri 9/19

4:39 pm-9:21 am

2 stops18h 42m

Ontario

Mon 9/22

2:54 pm-9:16 am

2 stops16h 22m

$535

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Green Bay to 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

Prices

Airlines

What is the cheapest day to depart on your flight to Ontario?

The cheapest day to depart on your flight to Ontario is on a Thursday when prices can be found for as low as $487. This is often the case because there is less demand to fly during this day of the week. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from Green Bay to Ontario for around $598.

When to book flights from Green Bay to Ontario

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

Estimated round-trip price

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

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

Direct flights	None

There are no direct flights from Green Bay to Ontario. There are no popular flight routes from Green Bay to Ontario.

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How far is Green Bay Austin-Straubel to Ontario by plane?
The straight-line distance from Green Bay Austin-Straubel to Ontario is 1727.6 mi. Typically, this will take 6h 46m by plane in normal conditions.
When did momondo last update prices for flights from Green Bay Austin-Straubel Airport to Ontario Airport?
Prices for flights from Green Bay Austin-Straubel Airport to Ontario Airport are updated daily.
How old do you have to be to fly from Green Bay Austin-Straubel Airport to Ontario Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Green Bay Austin-Straubel Airport to Ontario Airport.
What documentation or ID do you need to fly to Ontario Airport?
The travel and health documents required for your trip to Ontario Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Ontario Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Why use momondo?

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

It is quick and easy to find Green Bay to Ontario flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Ontario that suits you.

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

Yes. momondo enables you to select and highlight flights to Ontario from Green Bay with this policy.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Green Bay to Ontario.

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

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