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Cheap flights from Green Bay to Ontario (GRB - ONT) from $95

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/10. 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.
GRB — ONT
jun. 11 — jun. 181
From?
To?
mar. 6/11
mar. 6/18
1 adult, Economy
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Cheap flight deals from Green Bay to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Green Bay (GRB) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated junio 6, 2024.

Popular in

March

Cheapest in

September

Average price

$285

Round-trip from

$238
High demand for flights, 60% potential price rise
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Best time to find cheap flights, 66% potential price drop
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Average for round-trip flights in June 2024
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From Green Bay Austin-Straubel to Ontario
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What is the cheapest day to fly round-trip from Green Bay to Ontario?

Users have found that leaving on a Thursday can be a cost-effective option. It’s possible to save up to 88% on your flight compared to booking on days when demand is much higher.

How far in advance should I book a flight from Green Bay to Ontario?

To save on the cost of your flight from Green Bay to Ontario, book at least 26 days before your planned departure. Booking around this time can save you about 102% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $428 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $497.

What is the cheapest month to fly from Green Bay to Ontario?

January is one of the best times of the year to fly to Ontario from Green Bay. Prices for January average $466 per person but you can even find prices for as low as $250. The most expensive prices can be found in the month of June. Opting for a January flight can save you 24% on your journey compared to booking in June

What is the cheapest time of day to fly from GRB to ONT?

When flying from Green Bay to Ontario, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Cheap Green Bay to Ontario flights in June & July 2024

Find cheap flight options from Green Bay to Ontario specifically for the months of June and July 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,050,429 searches. Prices were last updated on junio 6, 2024.
These are some of the most attractive deals on flights from Green Bay to Ontario in 2024. Check back regularly for other flight deals.
vie. 6/146:31 pmGRB - ONT
1 stop7h 13mFrontier
dom. 6/1612:59 amONT - GRB
1 stop12h 03mFrontier
Deal found 6/5$234
mié. 7/31:46 pmGRB - ONT
1 stop12h 03mFrontier
jue. 7/1111:52 amONT - GRB
1 stop27h 41mFrontier
Deal found 6/5$313
vie. 6/146:31 pmGRB - ONT
1 stop7h 13mFrontier
lun. 6/177:13 amONT - GRB
1 stop5h 49mFrontier
Deal found 6/5$328
vie. 6/216:32 pmGRB - ONT
1 stop7h 08mFrontier
mar. 7/212:59 amONT - GRB
1 stop9h 47mFrontier
Deal found 6/6$345
mié. 7/36:07 amGRB - ONT
2 stops14h 30mAmerican Airlines
jue. 7/117:18 pmONT - GRB
2 stops13h 42mAmerican Airlines
Deal found 6/5$489
jue. 7/186:15 amGRB - ONT
2 stops8h 00mDelta
lun. 7/2210:00 pmONT - GRB
2 stops10h 19mDelta
Deal found 6/5$508
mié. 6/192:43 pmGRB - ONT
2 stops10h 16mAmerican Airlines
sáb. 6/226:30 amONT - GRB
2 stops13h 09mAmerican Airlines
Deal found 6/5$574
jue. 7/186:15 amGRB - ONT
2 stops8h 00mDelta
lun. 7/2211:23 amONT - GRB
1 stop10h 08mDelta
Deal found 6/5$688
mié. 7/34:18 pmGRB - ONT
2 stops9h 23mDelta
jue. 7/1111:23 amONT - GRB
1 stop10h 14mDelta
Deal found 6/5$698

Green Bay to Ontario 2024 flight deals

Discover exclusive flight deals for travel between Green Bay and Ontario in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,050,429 searches. Data last updated junio 6, 2024.
These are some of the most attractive deals on flights from Green Bay to Ontario in 2024. Check back regularly for other flight deals.
vie. 6/146:31 pmGRB - ONT
1 stop7h 13mFrontier
dom. 6/1612:59 amONT - GRB
1 stop12h 03mFrontier
Deal found 6/5$234
mié. 7/31:46 pmGRB - ONT
1 stop12h 03mFrontier
jue. 7/1111:52 amONT - GRB
1 stop27h 41mFrontier
Deal found 6/5$313
vie. 6/146:31 pmGRB - ONT
1 stop7h 13mFrontier
lun. 6/177:13 amONT - GRB
1 stop5h 49mFrontier
Deal found 6/5$328
vie. 6/216:32 pmGRB - ONT
1 stop7h 08mFrontier
mar. 7/212:59 amONT - GRB
1 stop9h 47mFrontier
Deal found 6/6$345
mié. 7/36:07 amGRB - ONT
2 stops14h 30mAmerican Airlines
jue. 7/117:18 pmONT - GRB
2 stops13h 42mAmerican Airlines
Deal found 6/5$489
jue. 7/186:15 amGRB - ONT
2 stops8h 00mDelta
lun. 7/2210:00 pmONT - GRB
2 stops10h 19mDelta
Deal found 6/5$508
mié. 6/192:43 pmGRB - ONT
2 stops10h 16mAmerican Airlines
sáb. 6/226:30 amONT - GRB
2 stops13h 09mAmerican Airlines
Deal found 6/5$574
jue. 7/186:15 amGRB - ONT
2 stops8h 00mDelta
lun. 7/2211:23 amONT - GRB
1 stop10h 08mDelta
Deal found 6/5$688
mié. 7/34:18 pmGRB - ONT
2 stops9h 23mDelta
jue. 7/1111:23 amONT - GRB
1 stop10h 14mDelta
Deal found 6/5$698

Green Bay to Ontario flights leaving soon

Find last-minute flight options from Green Bay to Ontario for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 3,050,429 searches. Data last updated junio 6, 2024.
Users seeking a last-minute flight from Green Bay to Ontario should consider booking one of these fares. Users should be sure to double check the price, date, and time of their last-minute flight.
vie. 6/146:31 pmGRB - ONT
1 stop7h 13mFrontier
dom. 6/1612:59 amONT - GRB
1 stop12h 03mFrontier
Deal found 6/5$234
vie. 6/146:31 pmGRB - ONT
1 stop7h 13mFrontier
lun. 6/177:13 amONT - GRB
1 stop5h 49mFrontier
Deal found 6/5$328
jue. 6/134:22 pmGRB - ONT
2 stops9h 20mDelta
dom. 6/1611:30 amONT - GRB
1 stop9h 17mDelta
Deal found 6/5$823
vie. 6/146:18 amGRB - ONT
2 stops8h 15mUnited Airlines
lun. 6/175:15 amONT - GRB
2 stops7h 51mUnited Airlines
Deal found 6/5$914
vie. 6/146:18 amGRB - ONT
2 stops18h 09mUnited Airlines
mar. 6/185:15 amONT - GRB
2 stops9h 32mUnited Airlines
Deal found 6/5$1,023

One-way flights to Ontario from Green Bay

Search for one-way flight options from Green Bay to Ontario. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 3,050,429 searches. Data last updated junio 6, 2024.
Users traveling one-way from Green Bay to Ontario can select one of these great deals. For those needing a return trip from Green Bay, there is a search form available above.
mié. 7/101:47 pmGRB - ONT
1 stop11h 52mFrontier
Deal found 6/6$95
jue. 7/114:20 pmGRB - ONT
2 stops9h 39mDelta
Deal found 6/6$253
mié. 7/104:20 pmGRB - ONT
2 stops9h 39mDelta
Deal found 6/6$364
mar. 7/96:19 amGRB - ONT
2 stops9h 30mAmerican Airlines
Deal found 6/6$399
lun. 7/86:18 pmGRB - ONT
2 stops16h 16mAmerican Airlines
Deal found 6/4$419
dom. 6/162:43 pmGRB - ONT
2 stops8h 57mAmerican Airlines
Deal found 6/5$449
mar. 7/96:30 amGRB - ONT
2 stops8h 03mUnited Airlines
Deal found 6/6$478
lun. 7/84:14 pmGRB - ONT
1 stop5h 54mFrontier
Deal found 6/4$479
lun. 7/84:20 pmGRB - ONT
2 stops9h 39mDelta
Deal found 6/6$524

Find flights from Green Bay to Ontario within your budget

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, Cheapflights users made 3,050,429 searches. Data last updated junio 6, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$313 - $808

Route

Depart

Return

Price

Green Bay Austin-StraubelOntario

GRB - ONT

GRBONT

Green Bay Austin-Straubel

mié. 7/3

1 stop12h 03m

Ontario

jue. 7/11

1 stop27h 41m

$313

Green Bay Austin-StraubelOntario

GRB - ONT

GRBONT

Green Bay Austin-Straubel

vie. 6/21

1 stop7h 08m

Ontario

mar. 7/2

1 stop9h 47m

$345

Green Bay Austin-StraubelOntario

GRB - ONT

GRBONT

Green Bay Austin-Straubel

mié. 7/3

2 stops14h 30m

Ontario

jue. 7/11

2 stops13h 42m

$489

Green Bay Austin-StraubelOntario

GRB - ONT

GRBONT

Green Bay Austin-Straubel

jue. 7/18

2 stops8h 00m

Ontario

lun. 7/22

2 stops10h 19m

$508

Green Bay Austin-StraubelOntario

GRB - ONT

GRBONT

Green Bay Austin-Straubel

mié. 6/19

2 stops10h 16m

Ontario

sáb. 6/22

2 stops13h 09m

$574

Green Bay Austin-StraubelOntario

GRB - ONT

GRBONT

Green Bay Austin-Straubel

jue. 7/18

2 stops8h 00m

Ontario

lun. 7/22

1 stop10h 08m

$688

Green Bay Austin-StraubelOntario

GRB - ONT

GRBONT

Green Bay Austin-Straubel

mié. 7/3

2 stops9h 23m

Ontario

jue. 7/11

1 stop10h 14m

$698

Green Bay Austin-StraubelOntario

GRB - ONT

GRBONT

Green Bay Austin-Straubel

mié. 6/19

2 stops13h 59m

Ontario

sáb. 6/22

1 stop9h 17m

$708

Green Bay Austin-StraubelOntario

GRB - ONT

GRBONT

Green Bay Austin-Straubel

vie. 6/21

2 stops8h 57m

Ontario

mié. 7/3

2 stops20h 25m

$808

Flights are sorted by cheapest first

Deals found on 6/5

What is the cheapest day to fly from Green Bay to Ontario?

Use this chart to determine the cheapest time to fly round-trip from Green Bay to Ontario. Price data was last updated on June 2, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Green Bay to Ontario flight should consider departing on Thursday mornings when fares are most often at their lowest. Thursday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Best time to book a flight from Green Bay to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Green Bay with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Temperature and rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average temperature and rainfall totals by month.

LAX

Temperature

57.2 - 73.4 °F

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated junio 6, 2024.
Read reviews from past customers who have flown Frontier, American Airlines and Delta from Green Bay to Ontario. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
10,368 reviews

Overall

8.0

Food

7.4

Crew

8.6

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Reviews

1 / 10

Crew was nice and courteous. Boarding went smoothly. But we experienced a few minutes of extreme turbulence.

Delta
8.0
Very good
10,368 reviews
Delta
8.0
Very good
10,368 reviews

Overall

8.0

Food

7.4

Crew

8.6

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Reviews

1 / 10

Crew was nice and courteous. Boarding went smoothly. But we experienced a few minutes of extreme turbulence.

United Airlines
7.4
Good
10,696 reviews
Delta
8.0
Very good
10,368 reviews

Overall

8.0

Food

7.4

Crew

8.6

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Reviews

1 / 10

Crew was nice and courteous. Boarding went smoothly. But we experienced a few minutes of extreme turbulence.

American Airlines
7.3
Good
14,227 reviews
Delta
8.0
Very good
10,368 reviews

Overall

8.0

Food

7.4

Crew

8.6

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Reviews

1 / 10

Crew was nice and courteous. Boarding went smoothly. But we experienced a few minutes of extreme turbulence.

Frontier
6.2
Okay
3,985 reviews
Delta
8.0
Very good
10,368 reviews

Overall

8.0

Food

7.4

Crew

8.6

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Reviews

1 / 10

Crew was nice and courteous. Boarding went smoothly. But we experienced a few minutes of extreme turbulence.

Related info for your journey

Find useful and relevant information for your journey from Green Bay to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find flights from Green Bay to Ontario for under $400 on Cheapflights?

    Yes, there are multiple flights from Green Bay to Ontario for under $400. The cheapest flight booked recently is on Frontier for just $313, but on average you can expect to pay $769.

  • Are there last-minute flights available from Green Bay to Ontario for under $300?

    There are currently 5+ open flights from Green Bay to Ontario within the next 7 days for less than $300.

  • What are the cheapest airlines flying from Green Bay to Ontario round-trip?

    Currently priced at $313, Frontier will fly you from Green Bay to Ontario and back. In addition to Frontier, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from American Airlines and Delta - these airlines can fly you to your destination from $489 and $508, respectively. These flights start at 47% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Green Bay to Ontario one-way?

    One-way options have recently been found by users for as low as $95 on Frontier. Other airlines that offer cheap prices include Delta from $253 and American Airlines from $399 one-way.

  • What does GRB to ONT mean?

    These are just IATA (International Air Transport Association) codes. They are used in aviation to identify and differentiate airports. That’s why a Green Bay Austin-Straubel Airport to Ontario Airport flight would often be abbreviated as a GRB to ONT flight.

  • Can I find deals for flights from Green Bay to Ontario that include extra baggage allowance?

    The amount of baggage you can bring on your Green Bay to Ontario flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Green Bay to Ontario with specific airlines?

    Yes, Cheapflights allows you to browse and filter Green Bay to Ontario flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Green Bay to Ontario that include hotel bookings?

    Yes. In addition to deals on Green Bay to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Green Bay to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Green Bay to Ontario.

  • Can I find deals for business class flights from Green Bay to Ontario?

    Yes. Cheapflights offers flight deals from Green Bay to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Green Bay to Ontario that allow pets onboard?

    Many airlines flying from Green Bay to Ontario offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Green Bay to Ontario?

    Yes, you can often find last-minute deals on Green Bay to Ontario flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Green Bay to Ontario flight deals updated?

    The Green Bay to Ontario flight deals you see on this page were last updated on 6/6.

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

    Currently, October is the cheapest month in which you can book a flight from Green Bay to Ontario (average of $239). Flying from Green Bay to Ontario in July is currently the most expensive (average of $327). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Search flights from Green Bay to Ontario by cabin class

Find flights from Green Bay to Ontario, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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