What is the cheapest airline that flies from Grand Rapids Gerald R. Ford Intl to Ontario?

Frontier, United Airlines, and Delta are the most popular carriers operating from Grand Rapids Gerald R. Ford Intl to Ontario

What airlines fly to Ontario?

American Airlines, United Airlines and Delta are the top three most popular airlines that fly to Ontario from Grand Rapids according to our data. American Airlines is the first choice among our users, with 38% of people opting to fly with this airline when traveling to Ontario. Keep in mind that there are 6 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 Grand Rapids Gerald R. Ford Intl Airport to Ontario Airport?

Prices for flights from Grand Rapids Gerald R. Ford Intl Airport to Ontario Airport are refreshed on a daily basis.

How many operators does momondo search for flights from Grand Rapids Gerald R. Ford Intl Airport to Ontario Airport?

As of September 2026, there are 5 operators available to choose from for flights from Grand Rapids Gerald R. Ford Intl Airport to Ontario Airport.

How old do you have to be to fly from Grand Rapids Gerald R. Ford Intl Airport to Ontario Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Grand Rapids Gerald R. Ford Intl Airport to Ontario Airport.

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

The required travel and health documents for your Ontario Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Ontario Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$145 Cheap Flights from Grand Rapids to Ontario in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Grand Rapids to Los Angeles

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One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

4:24 pm - 10:30 amGRR Grand Rapids Gerald R. Ford Intl-ONT Ontario

21h 06m1 stop Denver Intl

6:15 am - 3:26 pmONT Ontario-GRR Grand Rapids Gerald R. Ford Intl

6h 11m1 stop Denver Intl

$288Frontier

Thu, Oct 1 - Tue, Oct 6

3:50 pm - 12:20 amGRR Grand Rapids Gerald R. Ford Intl-ONT Ontario

11h 30m1 stop Denver Intl

4:46 pm - 2:54 pmONT Ontario-GRR Grand Rapids Gerald R. Ford Intl

19h 08m1 stop Denver Intl

$303Frontier

Sat, Dec 12 - Wed, Dec 16

4:24 pm - 9:09 amGRR Grand Rapids Gerald R. Ford Intl-ONT Ontario

19h 45m2 stops Denver Intl Las Vegas Harry Reid Intl

5:44 pm - 3:13 pmONT Ontario-GRR Grand Rapids Gerald R. Ford Intl

18h 29m1 stop Las Vegas Harry Reid Intl

$376Multiple Airlines

Tue, Sep 29 - Tue, Oct 6

6:18 pm - 10:57 pmGRR Grand Rapids Gerald R. Ford Intl-ONT Ontario

7h 39m1 stop Dallas/Fort Worth

7:00 am - 4:59 pmONT Ontario-GRR Grand Rapids Gerald R. Ford Intl

6h 59m1 stop Dallas/Fort Worth

$377American Airlines

Sat, Dec 12 - Wed, Dec 16

7:46 am - 12:39 pmGRR Grand Rapids Gerald R. Ford Intl-ONT Ontario

7h 53m1 stop Phoenix Sky Harbor Intl

6:00 am - 3:40 pmONT Ontario-GRR Grand Rapids Gerald R. Ford Intl

6h 40m1 stop Chicago O'Hare Intl

$377American Airlines

Wed, Jan 20 - Mon, Feb 1

6:00 am - 11:08 amGRR Grand Rapids Gerald R. Ford Intl-ONT Ontario

8h 08m1 stop Atlanta Hartsfield-Jackson

12:18 pm - 11:54 pmONT Ontario-GRR Grand Rapids Gerald R. Ford Intl

8h 36m1 stop Atlanta Hartsfield-Jackson

$377Delta

Thu, Nov 12 - Mon, Nov 16

6:25 am - 3:05 pmGRR Grand Rapids Gerald R. Ford Intl-ONT Ontario

11h 40m2 stops Chicago Midway Nashville Intl

5:20 am - 4:15 pmONT Ontario-GRR Grand Rapids Gerald R. Ford Intl

7h 55m1 stop Chicago Midway

$382Southwest

Sat, Feb 6 - Mon, Feb 8

4:20 pm - 10:05 pmGRR Grand Rapids Gerald R. Ford Intl-ONT Ontario

8h 45m2 stops Chicago Midway Denver Intl

5:40 am - 4:20 pmONT Ontario-GRR Grand Rapids Gerald R. Ford Intl

7h 40m2 stops Las Vegas Harry Reid Intl Denver Intl

$387Southwest

Tue, Sep 29 - Tue, Oct 6

1:43 pm - 6:34 pmGRR Grand Rapids Gerald R. Ford Intl-ONT Ontario

7h 51m1 stop Atlanta Hartsfield-Jackson

12:18 pm - 11:54 pmONT Ontario-GRR Grand Rapids Gerald R. Ford Intl

8h 36m1 stop Atlanta Hartsfield-Jackson

$394Delta

Fri, Nov 13 - Mon, Nov 16

4:03 pm - 7:04 amGRR Grand Rapids Gerald R. Ford Intl-ONT Ontario

18h 01m1 stop Las Vegas Harry Reid Intl

6:15 am - 5:32 pmONT Ontario-GRR Grand Rapids Gerald R. Ford Intl

32h 17m2 stops Denver Intl Nashville Intl

$414Multiple Airlines

Wed, Sep 30 - Sun, Oct 4

Cheap last minute flights

Enter your travel dates to find the best prices.

4:24 pm - 11:47 pmGRR Grand Rapids Gerald R. Ford Intl-ONT Ontario

10h 23m1 stop Denver Intl

6:15 am - 3:16 pmONT Ontario-GRR Grand Rapids Gerald R. Ford Intl

6h 01m1 stop Denver Intl

$339Frontier

Sat, Sep 12 - Sat, Oct 10

4:24 pm - 11:47 pmGRR Grand Rapids Gerald R. Ford Intl-ONT Ontario

10h 23m1 stop Denver Intl

6:15 am - 3:26 pmONT Ontario-GRR Grand Rapids Gerald R. Ford Intl

6h 11m1 stop Denver Intl

$380Frontier

Sat, Sep 12 - Sun, Sep 20

4:26 pm - 10:30 amGRR Grand Rapids Gerald R. Ford Intl-ONT Ontario

21h 04m2 stops Nashville Intl Denver Intl

8:00 am - 11:01 pmONT Ontario-GRR Grand Rapids Gerald R. Ford Intl

12h 01m1 stop Las Vegas Harry Reid Intl

$714Multiple Airlines

Fri, Sep 11 - Sun, Sep 13

4:24 pm - 11:47 pmGRR Grand Rapids Gerald R. Ford Intl-ONT Ontario

10h 23m1 stop Denver Intl

6:15 am - 5:58 pmONT Ontario-GRR Grand Rapids Gerald R. Ford Intl

8h 43m2 stops Denver Intl Nashville Intl

$787Multiple Airlines

Sat, Sep 12 - Mon, Sep 14

5:32 am - 8:07 pmGRR Grand Rapids Gerald R. Ford Intl-ONT Ontario

17h 35m2 stops Chicago O'Hare Intl Dallas/Fort Worth

6:00 am - 4:39 pmONT Ontario-GRR Grand Rapids Gerald R. Ford Intl

7h 39m1 stop Dallas/Fort Worth

$819American Airlines

Sat, Sep 12 - Sun, Sep 20

5:32 am - 8:07 pmGRR Grand Rapids Gerald R. Ford Intl-ONT Ontario

17h 35m2 stops Chicago O'Hare Intl Dallas/Fort Worth

10:25 am - 10:54 pmONT Ontario-GRR Grand Rapids Gerald R. Ford Intl

9h 29m1 stop Dallas/Fort Worth

$819American Airlines

Sat, Sep 12 - Sat, Sep 19

7:41 am - 8:01 pmGRR Grand Rapids Gerald R. Ford Intl-ONT Ontario

15h 20m2 stops Chicago O'Hare Intl San Francisco

7:00 am - 6:42 pmONT Ontario-GRR Grand Rapids Gerald R. Ford Intl

8h 42m1 stop Chicago O'Hare Intl

$842United Airlines

Fri, Sep 11 - Sun, Sep 20

7:41 am - 8:01 pmGRR Grand Rapids Gerald R. Ford Intl-ONT Ontario

15h 20m2 stops Chicago O'Hare Intl San Francisco

7:00 am - 6:42 pmONT Ontario-GRR Grand Rapids Gerald R. Ford Intl

8h 42m1 stop Chicago O'Hare Intl

$842United Airlines

Fri, Sep 11 - Sat, Sep 19

6:10 am - 11:05 amGRR Grand Rapids Gerald R. Ford Intl-ONT Ontario

7h 55m1 stop Atlanta Hartsfield-Jackson

12:17 pm - 11:32 pmONT Ontario-GRR Grand Rapids Gerald R. Ford Intl

8h 15m1 stop Atlanta Hartsfield-Jackson

$1,048Delta

Sun, Sep 13 - Wed, Sep 16

6:10 am - 11:05 amGRR Grand Rapids Gerald R. Ford Intl-ONT Ontario

7h 55m1 stop Atlanta Hartsfield-Jackson

12:17 pm - 11:32 pmONT Ontario-GRR Grand Rapids Gerald R. Ford Intl

8h 15m1 stop Atlanta Hartsfield-Jackson

$1,048Delta

Sun, Sep 13 - Fri, Sep 18

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Frontier flights from Grand Rapids to Ontario

Our best Frontier deals on Grand Rapids to Ontario flight tickets

Frontier

Oct 1

GRR4:24 pmGrand Rapids Gerald R. Ford Intl

21h 06m

1 stop

ONT10:30 amOntario

Oct 6

ONT6:15 amOntario

6h 11m

1 stop

GRR3:26 pmGrand Rapids Gerald R. Ford Intl

$288

Frontier

Dec 12

GRR3:50 pmGrand Rapids Gerald R. Ford Intl

11h 30m

1 stop

ONT12:20 amOntario

Dec 16

ONT4:46 pmOntario

19h 08m

1 stop

GRR2:54 pmGrand Rapids Gerald R. Ford Intl

$303

Frontier

Oct 20

GRR4:11 pmGrand Rapids Gerald R. Ford Intl

10h 39m

1 stop

ONT11:50 pmOntario

Oct 25

ONT6:15 amOntario

6h 01m

1 stop

GRR3:16 pmGrand Rapids Gerald R. Ford Intl

$308

American Airlines flights from Grand Rapids to Ontario

Our best American Airlines deals on Grand Rapids to Ontario flight tickets

American Airlines

Feb 25

GRR2:39 pmGrand Rapids Gerald R. Ford Intl

9h 09m

1 stop

ONT8:48 pmOntario

Mar 1

ONT10:40 pmOntario

9h 19m

1 stop

GRR10:59 amGrand Rapids Gerald R. Ford Intl

$377

American Airlines

Feb 25

GRR3:57 pmGrand Rapids Gerald R. Ford Intl

7h 51m

1 stop

ONT8:48 pmOntario

Mar 1

ONT7:50 pmOntario

10h 12m

2 stops

GRR9:02 amGrand Rapids Gerald R. Ford Intl

$382

American Airlines

Oct 1

GRR5:29 pmGrand Rapids Gerald R. Ford Intl

9h 07m

1 stop

ONT11:36 pmOntario

Oct 6

ONT9:41 amOntario

11h 08m

2 stops

GRR11:49 pmGrand Rapids Gerald R. Ford Intl

$411

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Grand RapidsOntario

GRR Grand Rapids Gerald R. Ford Intl - ONT Ontario

GRRONT

Grand Rapids Gerald R. Ford Intl

Thu 10/1

4:24 pm-10:30 am

1 stop21h 06m

Ontario

Tue 10/6

6:15 am-3:26 pm

1 stop6h 11m

$288

Grand RapidsOntario

GRR Grand Rapids Gerald R. Ford Intl - ONT Ontario

GRRONT

Grand Rapids Gerald R. Ford Intl

Sat 12/12

3:50 pm-12:20 am

1 stop11h 30m

Ontario

Wed 12/16

4:46 pm-2:54 pm

1 stop19h 08m

$303

Grand RapidsOntario

GRR Grand Rapids Gerald R. Ford Intl - ONT Ontario

GRRONT

Grand Rapids Gerald R. Ford Intl

Tue 9/29

4:24 pm-9:09 am

2 stops19h 45m

Ontario

Tue 10/6

5:44 pm-3:13 pm

1 stop18h 29m

$376

Grand RapidsOntario

GRR Grand Rapids Gerald R. Ford Intl - ONT Ontario

GRRONT

Grand Rapids Gerald R. Ford Intl

Sat 12/12

6:18 pm-10:57 pm

1 stop7h 39m

Ontario

Wed 12/16

7:00 am-4:59 pm

1 stop6h 59m

$377

Quickest round-trip

Grand RapidsOntario

GRR Grand Rapids Gerald R. Ford Intl - ONT Ontario

GRRONT

Grand Rapids Gerald R. Ford Intl

Wed 1/20

7:46 am-12:39 pm

1 stop7h 53m

Ontario

Mon 2/1

6:00 am-3:40 pm

1 stop6h 40m

$377

Grand RapidsOntario

GRR Grand Rapids Gerald R. Ford Intl - ONT Ontario

GRRONT

Grand Rapids Gerald R. Ford Intl

Thu 11/12

6:00 am-11:08 am

1 stop8h 08m

Ontario

Mon 11/16

12:18 pm-11:54 pm

1 stop8h 36m

$377

Grand RapidsOntario

GRR Grand Rapids Gerald R. Ford Intl - ONT Ontario

GRRONT

Grand Rapids Gerald R. Ford Intl

Sat 2/6

6:25 am-3:05 pm

2 stops11h 40m

Ontario

Mon 2/8

5:20 am-4:15 pm

1 stop7h 55m

$382

Grand RapidsOntario

GRR Grand Rapids Gerald R. Ford Intl - ONT Ontario

GRRONT

Grand Rapids Gerald R. Ford Intl

Tue 9/29

4:20 pm-10:05 pm

2 stops8h 45m

Ontario

Tue 10/6

5:40 am-4:20 pm

2 stops7h 40m

$387

Grand RapidsOntario

GRR Grand Rapids Gerald R. Ford Intl - ONT Ontario

GRRONT

Grand Rapids Gerald R. Ford Intl

Fri 11/13

1:43 pm-6:34 pm

1 stop7h 51m

Ontario

Mon 11/16

12:18 pm-11:54 pm

1 stop8h 36m

$394

Grand RapidsOntario

GRR Grand Rapids Gerald R. Ford Intl - ONT Ontario

GRRONT

Grand Rapids Gerald R. Ford Intl

Wed 9/30

4:03 pm-7:04 am

1 stop18h 01m

Ontario

Sun 10/4

6:15 am-5:32 pm

2 stops32h 17m

$414

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 Grand Rapids 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 typical price of a round-trip flight between Grand Rapids and Ontario?

Prices are currently low for flights on this route.

Typical prices usually range from $378 to $539.
The lowest price recently found on this route was $288.

What is the cheapest month to fly to Ontario?

In general, February is the cheapest month to fly from Grand Rapids to Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $358. If you aren’t able to travel during the month of February, then book flights to Ontario from Grand Rapids during October instead. Flights to Ontario in October, while not as cheap as those in February, still average around $374.

How have Grand Rapids to Ontario flight prices changed over time?

As of September 2026, prices for Grand Rapids to Ontario flights are approximately 296% more expensive when compared to flights at the same time last year.

When to book flights from Grand Rapids to Ontario

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

Estimated round-trip price

Cheap Grand Rapids to Ontario (GRR to ONT) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Grand Rapids to Ontario

Best Price Found	$145
Fastest flight time	7h 13m
Direct flights	None

The best one-way flight to Ontario from Grand Rapids in the past 72 hours is $145. The best round-trip flight deal from Grand Rapids to Ontario found on momondo in the last 72 hours is $288.

The fastest flight from Grand Rapids to Ontario takes 7h 13m

There are no direct flights from Grand Rapids to Ontario. There are no popular flight routes from Grand Rapids to Ontario.

Search flight deals

Frequently asked questions about flying from Grand Rapids to Ontario

How far is Grand Rapids Gerald R. Ford Intl to Ontario by plane?
Ontario is 1820.7 mi away from Grand Rapids Gerald R. Ford Intl. 7h 13m is a normal flight duration for this route.
When did momondo last update prices for flights from Grand Rapids Gerald R. Ford Intl Airport to Ontario Airport?
Prices for flights from Grand Rapids Gerald R. Ford Intl Airport to Ontario Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Grand Rapids Gerald R. Ford Intl Airport to Ontario Airport?
As of September 2026, there are 5 operators available to choose from for flights from Grand Rapids Gerald R. Ford Intl Airport to Ontario Airport.
How old do you have to be to fly from Grand Rapids Gerald R. Ford Intl Airport to Ontario Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Grand Rapids Gerald R. Ford Intl Airport to Ontario Airport.
What documentation or ID do you need to fly to Ontario Airport?
The required travel and health documents for your Ontario Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Ontario Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from Grand Rapids to Ontario?
momondo data reveals that the most frequently booked airline on the route from Grand Rapids to Ontario is American Airlines, representing 30% of all bookings. The subsequent popular airlines are United Airlines at 25%, Southwest at 25%, and Frontier at 12%.

Best airlines flying from Grand Rapids to Ontario

Compare and see reviews for airlines that fly from Grand Rapids to Ontario with momondo

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $117	Free Cancellation	Rating 5.6 2,611 reviews	Search Frontier flights
Delta	PriceFrom $277	Free Cancellation	Rating 7.8 8,553 reviews	Search Delta flights
American Airlines	PriceFrom $303	Free Cancellation	Rating 7.1 12,047 reviews	Search American Airlines flights
United Airlines	PriceFrom $346	Free Cancellation	Rating 7.4 10,194 reviews	Search United Airlines flights
Southwest	PriceFrom $364	Free Cancellation	Rating 8.0 4,195 reviews	Search Southwest flights

Why use momondo?

Why should I use momondo to find a flight deal from Grand Rapids to Ontario?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Ontario from Grand Rapids.

Can I find flights from Grand Rapids to Ontario with flexible booking policies on momondo?

momondo does allow users to show only those flights to Ontario from Grand Rapids which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Grand Rapids to Ontario?

Once all potential Grand Rapids to Ontario flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes momondo offers price alerts on flights to Ontario from Grand Rapids. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Ontario trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Cheap flights from Grand Rapids to Los Angeles from $145

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Grand Rapids to Los Angeles departing on 10/22. 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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Frontier flights from Grand Rapids to Ontario

Our best Frontier deals on Grand Rapids to Ontario flight tickets

American Airlines flights from Grand Rapids to Ontario

Our best American Airlines deals on Grand Rapids to Ontario flight tickets

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How to get the cheapest flight ticket from Grand Rapids to Ontario

What is the typical price of a round-trip flight between Grand Rapids and Ontario?

What is the cheapest month to fly to Ontario?

How have Grand Rapids to Ontario flight prices changed over time?

What is the cheapest airline that flies from Grand Rapids Gerald R. Ford Intl to Ontario?

What airlines fly to Ontario?

When to book flights from Grand Rapids to Ontario

Cheap Grand Rapids to Ontario (GRR to ONT) flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from Grand Rapids to Ontario

Best airlines flying from Grand Rapids to Ontario

Compare and see reviews for airlines that fly from Grand Rapids to Ontario with momondo

Why use momondo?

An easier way to manage your Ontario trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing California

Fly your favorite airline to Los Angeles

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Los Angeles

List of cabin classes available on flights landing in Los Angeles. Availability may vary depending on flight origin and airline.

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