GRB - ONT

$404 Find Cheap Flights from Green Bay to Ontario

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Green Bay to Ontario departing on 12/9. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Ontario

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Green Bay to Ontario, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Green Bay to Ontario, as well as popular online travel agencies
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Booking Insights
Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Green Bay to Ontario that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Green Bay to Ontario

Tue, Dec 9 - Sat, Dec 13
Delta Logo
4:17 pm - 11:58 pmGRB-ONT
9h 41m2 stops
Delta Logo
12:12 pm - 10:37 pmONT-GRB
8h 25m1 stop
$404Delta
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Thu, Jan 22 - Sun, Jan 25
United Airlines Logo
10:42 am - 8:58 pmGRB-ONT
12h 16m2 stops
United Airlines Logo
6:39 pm - 10:07 amONT-GRB
13h 28m2 stops
$414United Airlines
Find Deal
Tue, Dec 9 - Sat, Dec 13
Delta Logo
5:15 am - 11:02 amGRB-ONT
7h 47m1 stop
Delta Logo
12:12 pm - 10:37 pmONT-GRB
8h 25m1 stop
$433Delta
Find Deal
Tue, Dec 9 - Sat, Dec 13
Delta Logo
4:17 pm - 11:58 pmGRB-ONT
9h 41m2 stops
Delta Logo
12:12 pm - 10:37 pmONT-GRB
8h 25m1 stop
$438Delta
Find Deal
Thu, Nov 13 - Mon, Nov 17
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
$449United Airlines
Find Deal
Thu, Nov 13 - Mon, Nov 17
United Airlines Logo
3:51 pm - 10:31 pmGRB-ONT
8h 40m1 stop
United Airlines Logo
5:05 am - 4:46 pmONT-GRB
9h 41m2 stops
$454United Airlines
Find Deal
Thu, Nov 13 - Sun, Nov 16
United Airlines Logo
8:00 am - 5:34 pmGRB-ONT
11h 34m2 stops
United Airlines Logo
5:05 am - 3:10 pmONT-GRB
8h 05m2 stops
$459United Airlines
Find Deal
Tue, Dec 9 - Sat, Dec 13
United Airlines Logo
1:35 pm - 10:49 pmGRB-ONT
11h 14m2 stops
United Airlines Logo
5:05 am - 3:12 pmONT-GRB
8h 07m2 stops
$470United Airlines
Find Deal
Fri, Nov 14 - Mon, Nov 17
United Airlines Logo
5:27 pm - 10:31 pmGRB-ONT
7h 04m1 stop
United Airlines Logo
7:00 am - 4:46 pmONT-GRB
7h 46m1 stop
$488United Airlines
Find Deal
Fri, Nov 14 - Mon, Nov 17
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
$493United Airlines
Find Deal

Everything you should know

Cheapest round-trip
$404
Delta
Tue 12/9Sat 12/13
GRB - ONT • 2 stops
Cheapest one-way
$423
United Airlines
Tue 11/4
GRB - ONT • 1 stop
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Ontario!
Booking Insights

KAYAK's insights & trends for Green Bay to Ontario flights

Get data-powered insights and trends into flights from Green Bay to Ontario to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Green Bay to Ontario?

The average price of all round-trip flights from Green Bay to Ontario clicked on KAYAK for each day over the last 12 months.

For Green Bay to Ontario, Thursday is the cheapest day to fly on average and Friday is the most expensive. Flying from Ontario back to Green Bay, the best deals are generally found on Tuesday, with Sunday being the most expensive.

Find deals

Good to know

Low seasonMay
Cheapest flight$404
Best time to beat the crowds with an average 35% drop in price.
Most popular time to fly with an average 4% increase in price.
Flight from Green Bay to Ontario

When to book flights from Green Bay to Ontario

Are your dates flexible? Find out the best times to travel from Green Bay to Ontario 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.

FAQs for booking flights from Green Bay to Ontario

  • What is the cheapest flight from Green Bay to Ontario?

    In the last 3 days, the lowest price for a flight from Green Bay to Ontario was $423 for a one-way ticket and $404 for a round-trip.

  • Do I need a passport to fly between Green Bay and Ontario?

    No

  • Which aircraft models fly most regularly from Green Bay to Ontario?

    We unfortunately don’t have that data for this specific route.

  • How does KAYAK find such low prices on flights from Green Bay to Ontario?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Green Bay to Ontario.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Green Bay to Ontario?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario from Green Bay is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Green Bay to Ontario?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ontario with an airline and back to Green Bay with another airline. Booking your flights between Green Bay and ONT can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Green Bay to Ontario?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ontario from Green Bay up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight from Green Bay to Ontario

Information on your arrival and departure airports

Green Bay (GRB)
Ontario (ONT)

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