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Cheap flights from Green Bay to Los Angeles from $289

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 Los Angeles departing on 11/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

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United Airlines Logo
3:51 pm - 10:31 pmGRB-ONT
8h 40m1 stop
United Airlines Logo
7:00 am - 4:46 pmONT-GRB
7h 46m1 stop
$289United Airlines
Find Deal
Wed, Nov 12 - Tue, Nov 18
United Airlines Logo
3:51 pm - 10:31 pmGRB-ONT
8h 40m1 stop
United Airlines Logo
6:38 pm - 10:11 amONT-GRB
13h 33m2 stops
$294United Airlines
Find Deal
Wed, Nov 12 - Tue, Nov 18
Delta Logo
4:56 pm - 11:52 pmGRB-ONT
8h 56m2 stops
Delta Logo
5:49 pm - 10:30 amONT-GRB
14h 41m2 stops
$324Delta
Find Deal
Thu, Nov 13 - Tue, Nov 18
United Airlines Logo
3:51 pm - 10:31 pmGRB-ONT
8h 40m1 stop
United Airlines Logo
7:00 am - 4:46 pmONT-GRB
7h 46m1 stop
$379United Airlines
Find Deal
Thu, Nov 13 - Tue, Nov 18
United Airlines Logo
5:27 pm - 10:31 pmGRB-ONT
7h 04m1 stop
United Airlines Logo
6:38 pm - 10:11 amONT-GRB
13h 33m2 stops
$384United Airlines
Find Deal
Thu, Nov 13 - Tue, Nov 18
Delta Logo
4:17 pm - 11:58 pmGRB-ONT
9h 41m2 stops
Delta Logo
12:12 pm - 10:37 pmONT-GRB
8h 25m1 stop
$464Delta
Find Deal
Tue, Dec 9 - Sat, Dec 13
Delta Logo
4:17 pm - 11:58 pmGRB-ONT
9h 41m2 stops
Delta Logo
6:00 am - 9:40 pmONT-GRB
13h 40m2 stops
$483Delta
Find Deal
Tue, Dec 9 - Sat, Dec 13
American Airlines Logo
6:00 am - 4:02 pmGRB-ONT
12h 02m2 stops
American Airlines Logo
10:34 pm - 2:29 pmONT-GRB
13h 55m2 stops
$585American Airlines
Find Deal
Wed, Dec 3 - Mon, Dec 8
American Airlines Logo
11:25 am - 6:35 pmGRB-ONT
9h 10m2 stops
American Airlines Logo
9:59 am - 11:28 pmONT-GRB
11h 29m2 stops
$697American Airlines
Find Deal
Sat, Nov 1 - Sat, Nov 8
American Airlines Logo
9:45 am - 4:01 pmGRB-ONT
8h 16m2 stops
American Airlines Logo
7:00 am - 7:22 pmONT-GRB
10h 22m3 stops
$1,068American Airlines
Find Deal
Thu, Nov 13 - Tue, Nov 18

American Airlines flights from Green Bay to Ontario

Our best American Airlines deals on Green Bay to Ontario flight tickets
American Airlines
Dec 3
GRB6:00 amGreen Bay Austin-Straubel
12h 02m
2 stops
ONT4:02 pmOntario
Dec 8
ONT10:34 pmOntario
13h 55m
2 stops
GRB2:29 pmGreen Bay Austin-Straubel
$585
Find similar
American Airlines
Nov 1
GRB11:25 amGreen Bay Austin-Straubel
9h 10m
2 stops
ONT6:35 pmOntario
Nov 8
ONT9:59 amOntario
11h 29m
2 stops
GRB11:28 pmGreen Bay Austin-Straubel
$697
Find similar
American Airlines
Nov 13
GRB9:45 amGreen Bay Austin-Straubel
8h 16m
2 stops
ONT4:01 pmOntario
Nov 18
ONT7:00 amOntario
10h 22m
3 stops
GRB7:22 pmGreen Bay Austin-Straubel
$1,068
Find similar

United Airlines flights from Green Bay to Ontario

Our best United Airlines deals on Green Bay to Ontario flight tickets
United Airlines
Nov 12
GRB3:51 pmGreen Bay Austin-Straubel
8h 40m
1 stop
ONT10:31 pmOntario
Nov 18
ONT7:00 amOntario
7h 46m
1 stop
GRB4:46 pmGreen Bay Austin-Straubel
$289
Find similar
United Airlines
Nov 12
GRB3:51 pmGreen Bay Austin-Straubel
8h 40m
1 stop
ONT10:31 pmOntario
Nov 18
ONT6:38 pmOntario
13h 33m
2 stops
GRB10:11 amGreen Bay Austin-Straubel
$294
Find similar
United Airlines
Nov 13
GRB3:51 pmGreen Bay Austin-Straubel
8h 40m
1 stop
ONT10:31 pmOntario
Nov 18
ONT7:00 amOntario
7h 46m
1 stop
GRB4:46 pmGreen Bay Austin-Straubel
$379
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Green Bay to 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 October 16, 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 BayOntario

GRB - ONT

GRBONT

Green Bay Austin-Straubel

Wed 11/12

3:51 pm-10:31 pm

1 stop8h 40m

Ontario

Tue 11/18

7:00 am-4:46 pm

1 stop7h 46m

$289

Green BayOntario

GRB - ONT

GRBONT

Green Bay Austin-Straubel

Wed 11/12

3:51 pm-10:31 pm

1 stop8h 40m

Ontario

Tue 11/18

6:38 pm-10:11 am

2 stops13h 33m

$294

Green BayOntario

GRB - ONT

GRBONT

Green Bay Austin-Straubel

Thu 11/13

4:56 pm-11:52 pm

2 stops8h 56m

Ontario

Tue 11/18

5:49 pm-10:30 am

2 stops14h 41m

$324

Green BayOntario

GRB - ONT

GRBONT

Green Bay Austin-Straubel

Thu 11/13

3:51 pm-10:31 pm

1 stop8h 40m

Ontario

Tue 11/18

7:00 am-4:46 pm

1 stop7h 46m

$379

Green BayOntario

GRB - ONT

GRBONT

Green Bay Austin-Straubel

Thu 11/13

5:27 pm-10:31 pm

1 stop7h 04m

Ontario

Tue 11/18

6:38 pm-10:11 am

2 stops13h 33m

$384

Green BayOntario

GRB - ONT

GRBONT

Green Bay Austin-Straubel

Tue 12/9

4:17 pm-11:58 pm

2 stops9h 41m

Ontario

Sat 12/13

12:12 pm-10:37 pm

1 stop8h 25m

$464

Green BayOntario

GRB - ONT

GRBONT

Green Bay Austin-Straubel

Tue 12/9

4:17 pm-11:58 pm

2 stops9h 41m

Ontario

Sat 12/13

6:00 am-9:40 pm

2 stops13h 40m

$483

Green BayOntario

GRB - ONT

GRBONT

Green Bay Austin-Straubel

Wed 12/3

6:00 am-4:02 pm

2 stops12h 02m

Ontario

Mon 12/8

10:34 pm-2:29 pm

2 stops13h 55m

$585

Green BayOntario

GRB - ONT

GRBONT

Green Bay Austin-Straubel

Sat 11/1

11:25 am-6:35 pm

2 stops9h 10m

Ontario

Sat 11/8

9:59 am-11:28 pm

2 stops11h 29m

$697

Green BayOntario

GRB - ONT

GRBONT

Green Bay Austin-Straubel

Thu 11/13

9:45 am-4:01 pm

2 stops8h 16m

Ontario

Tue 11/18

7:00 am-7:22 pm

3 stops10h 22m

$1,068

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 resultsSorted by cheapest first
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See travel insights to Los Angeles from

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

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.

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

You could potentially save up to 83% on your flight if you consider stops on a Green Bay to Ontario flight.

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 7h 03m 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.

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