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

Delta, United Airlines, and Frontier 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 39% 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 4 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.

$158 Cheap Flights from Grand Rapids to Ontario in 2026/27

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.

4:11 pm - 10:29 amGRR Grand Rapids Gerald R. Ford Intl-ONT Ontario

21h 18m1 stop Denver Intl

11:52 am - 4:16 pmONT Ontario-GRR Grand Rapids Gerald R. Ford Intl

25h 24m1 stop Denver Intl

$246Frontier

Sat, Oct 24 - Sat, Oct 31

4:11 pm - 11:50 pmGRR Grand Rapids Gerald R. Ford Intl-ONT Ontario

10h 39m1 stop Denver Intl

11:52 am - 4:16 pmONT Ontario-GRR Grand Rapids Gerald R. Ford Intl

25h 24m1 stop Denver Intl

$247Frontier

Sat, Oct 24 - Sat, Oct 31

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

7h 53m1 stop Phoenix Sky Harbor Intl

6:00 am - 3:22 pmONT Ontario-GRR Grand Rapids Gerald R. Ford Intl

6h 22m1 stop Dallas/Fort Worth

$305American Airlines

Tue, Jan 19 - Tue, Feb 2

1:19 pm - 6:52 pmGRR Grand Rapids Gerald R. Ford Intl-ONT Ontario

8h 33m1 stop Dallas/Fort Worth

1:23 pm - 10:37 pmONT Ontario-GRR Grand Rapids Gerald R. Ford Intl

6h 14m1 stop Phoenix Sky Harbor Intl

$305American Airlines

Tue, Dec 1 - Sat, Dec 5

3:40 pm - 9:45 pmGRR Grand Rapids Gerald R. Ford Intl-ONT Ontario

9h 05m1 stop Denver Intl

6:30 am - 5:55 pmONT Ontario-GRR Grand Rapids Gerald R. Ford Intl

8h 25m1 stop Chicago Midway

$306Southwest

Wed, Oct 28 - Sat, Oct 31

1:35 pm - 7:40 pmGRR Grand Rapids Gerald R. Ford Intl-ONT Ontario

9h 05m1 stop Las Vegas Harry Reid Intl

5:40 am - 7:20 pmONT Ontario-GRR Grand Rapids Gerald R. Ford Intl

10h 40m2 stops Las Vegas Harry Reid Intl Denver Intl

$312Southwest

Wed, Oct 28 - Sat, Oct 31

5:50 pm - 11:48 pmGRR Grand Rapids Gerald R. Ford Intl-ONT Ontario

8h 58m2 stops Detroit Metropolitan Wayne County Salt Lake City

7:00 am - 8:57 pmONT Ontario-GRR Grand Rapids Gerald R. Ford Intl

10h 57m2 stops Atlanta Hartsfield-Jackson Detroit Metropolitan Wayne County

$315Delta

Tue, Jan 19 - Tue, Feb 2

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

$327Delta

Tue, Nov 10 - Mon, Nov 23

2:10 pm - 6:39 pmGRR Grand Rapids Gerald R. Ford Intl-ONT Ontario

7h 29m1 stop Chicago O'Hare Intl

5:00 am - 2:29 pmONT Ontario-GRR Grand Rapids Gerald R. Ford Intl

6h 29m1 stop Denver Intl

$349United Airlines

Mon, Feb 15 - Mon, Mar 1

8:00 am - 12:33 pmGRR Grand Rapids Gerald R. Ford Intl-ONT Ontario

7h 33m1 stop Denver Intl

1:29 pm - 10:20 pmONT Ontario-GRR Grand Rapids Gerald R. Ford Intl

5h 51m1 stop Denver Intl

$405United Airlines

Sat, Nov 14 - Tue, Nov 17

Cheap last minute 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

$440Frontier

Sat, Sep 19 - Thu, Sep 24

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

$440Frontier

Tue, Sep 22 - Tue, Sep 29

11:59 am - 11:47 pmGRR Grand Rapids Gerald R. Ford Intl-ONT Ontario

14h 48m1 stop Denver Intl

6:15 am - 11:02 amONT Ontario-GRR Grand Rapids Gerald R. Ford Intl

25h 47m1 stop Denver Intl

$440Frontier

Mon, Sep 21 - Thu, Sep 24

2:06 pm - 11:47 pmGRR Grand Rapids Gerald R. Ford Intl-ONT Ontario

36h 41m2 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

$662Multiple Airlines

Mon, Sep 21 - Thu, Sep 24

11:59 am - 10:30 amGRR Grand Rapids Gerald R. Ford Intl-ONT Ontario

25h 31m1 stop Denver Intl

2:30 pm - 3:16 pmONT Ontario-GRR Grand Rapids Gerald R. Ford Intl

45h 46m2 stops Las Vegas Harry Reid Intl Nashville Intl

$733Multiple Airlines

Mon, Sep 21 - Wed, Sep 23

7:12 am - 6:17 pmGRR Grand Rapids Gerald R. Ford Intl-ONT Ontario

14h 05m2 stops Chicago O'Hare Intl Phoenix Sky Harbor Intl

6:15 am - 11:06 pmONT Ontario-GRR Grand Rapids Gerald R. Ford Intl

13h 51m2 stops Phoenix Sky Harbor Intl Chicago O'Hare Intl

$899American Airlines

Tue, Sep 22 - Sat, Sep 26

6:30 am - 3:15 pmGRR Grand Rapids Gerald R. Ford Intl-ONT Ontario

11h 45m2 stops Chicago Midway Las Vegas Harry Reid Intl

12:35 pm - 11:45 pmONT Ontario-GRR Grand Rapids Gerald R. Ford Intl

8h 10m2 stops Las Vegas Harry Reid Intl Chicago Midway

$1,007Southwest

Sat, Sep 19 - Thu, Sep 24

6:44 am - 6:17 pmGRR Grand Rapids Gerald R. Ford Intl-ONT Ontario

14h 33m2 stops Dallas/Fort Worth Phoenix Sky Harbor Intl

6:15 am - 10:54 pmONT Ontario-GRR Grand Rapids Gerald R. Ford Intl

13h 39m2 stops Phoenix Sky Harbor Intl Dallas/Fort Worth

$1,017American Airlines

Sat, Sep 19 - Tue, Sep 22

5:00 pm - 9:59 pmGRR Grand Rapids Gerald R. Ford Intl-ONT Ontario

7h 59m1 stop Houston George Bush Intcntl

5:00 am - 2:47 pmONT Ontario-GRR Grand Rapids Gerald R. Ford Intl

6h 47m1 stop Denver Intl

$1,448United Airlines

Mon, Sep 21 - Mon, Oct 5

5:00 pm - 9:59 pmGRR Grand Rapids Gerald R. Ford Intl-ONT Ontario

7h 59m1 stop Houston George Bush Intcntl

5:00 am - 2:47 pmONT Ontario-GRR Grand Rapids Gerald R. Ford Intl

6h 47m1 stop Denver Intl

$1,458United Airlines

Mon, Sep 21 - Mon, Oct 5

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Frontier flights from Grand Rapids to Ontario

Our best Frontier deals on Grand Rapids to Ontario flight tickets

Frontier

Oct 24

GRR4:11 pmGrand Rapids Gerald R. Ford Intl

21h 18m

1 stop

ONT10:29 amOntario

Oct 31

ONT11:52 amOntario

25h 24m

1 stop

GRR4:16 pmGrand Rapids Gerald R. Ford Intl

$246

Frontier

Oct 24

GRR4:11 pmGrand Rapids Gerald R. Ford Intl

10h 39m

1 stop

ONT11:50 pmOntario

Oct 31

ONT11:52 amOntario

25h 24m

1 stop

GRR4:16 pmGrand Rapids Gerald R. Ford Intl

$247

Frontier

Oct 13

GRR4:11 pmGrand Rapids Gerald R. Ford Intl

10h 39m

1 stop

ONT11:50 pmOntario

Oct 20

ONT6:15 amOntario

6h 01m

1 stop

GRR3:16 pmGrand Rapids Gerald R. Ford Intl

$266

American Airlines flights from Grand Rapids to Ontario

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

American Airlines

Dec 1

GRR1:19 pmGrand Rapids Gerald R. Ford Intl

8h 33m

1 stop

ONT6:52 pmOntario

Dec 5

ONT1:23 pmOntario

6h 14m

1 stop

GRR10:37 pmGrand Rapids Gerald R. Ford Intl

$305

American Airlines

Dec 1

GRR1:19 pmGrand Rapids Gerald R. Ford Intl

11h 33m

2 stops

ONT9:52 pmOntario

Dec 5

ONT7:00 amOntario

7h 38m

1 stop

GRR5:38 pmGrand Rapids Gerald R. Ford Intl

$310

American Airlines

Dec 1

GRR1:19 pmGrand Rapids Gerald R. Ford Intl

11h 33m

2 stops

ONT9:52 pmOntario

Dec 5

ONT9:29 amOntario

11h 16m

2 stops

GRR11:45 pmGrand Rapids Gerald R. Ford Intl

$315

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

Sat 10/24

4:11 pm-10:29 am

1 stop21h 18m

Ontario

Sat 10/31

11:52 am-4:16 pm

1 stop25h 24m

$246

Grand RapidsOntario

GRR Grand Rapids Gerald R. Ford Intl - ONT Ontario

GRRONT

Grand Rapids Gerald R. Ford Intl

Sat 10/24

4:11 pm-11:50 pm

1 stop10h 39m

Ontario

Sat 10/31

11:52 am-4:16 pm

1 stop25h 24m

$247

Grand RapidsOntario

GRR Grand Rapids Gerald R. Ford Intl - ONT Ontario

GRRONT

Grand Rapids Gerald R. Ford Intl

Tue 1/19

7:46 am-12:39 pm

1 stop7h 53m

Ontario

Tue 2/2

6:00 am-3:22 pm

1 stop6h 22m

$305

Grand RapidsOntario

GRR Grand Rapids Gerald R. Ford Intl - ONT Ontario

GRRONT

Grand Rapids Gerald R. Ford Intl

Tue 12/1

1:19 pm-6:52 pm

1 stop8h 33m

Ontario

Sat 12/5

1:23 pm-10:37 pm

1 stop6h 14m

$305

Grand RapidsOntario

GRR Grand Rapids Gerald R. Ford Intl - ONT Ontario

GRRONT

Grand Rapids Gerald R. Ford Intl

Wed 10/28

3:40 pm-9:45 pm

1 stop9h 05m

Ontario

Sat 10/31

6:30 am-5:55 pm

1 stop8h 25m

$306

Grand RapidsOntario

GRR Grand Rapids Gerald R. Ford Intl - ONT Ontario

GRRONT

Grand Rapids Gerald R. Ford Intl

Wed 10/28

1:35 pm-7:40 pm

1 stop9h 05m

Ontario

Sat 10/31

5:40 am-7:20 pm

2 stops10h 40m

$312

Grand RapidsOntario

GRR Grand Rapids Gerald R. Ford Intl - ONT Ontario

GRRONT

Grand Rapids Gerald R. Ford Intl

Tue 1/19

5:50 pm-11:48 pm

2 stops8h 58m

Ontario

Tue 2/2

7:00 am-8:57 pm

2 stops10h 57m

$315

Grand RapidsOntario

GRR Grand Rapids Gerald R. Ford Intl - ONT Ontario

GRRONT

Grand Rapids Gerald R. Ford Intl

Tue 11/10

6:00 am-11:08 am

1 stop8h 08m

Ontario

Mon 11/23

12:18 pm-11:54 pm

1 stop8h 36m

$327

Grand RapidsOntario

GRR Grand Rapids Gerald R. Ford Intl - ONT Ontario

GRRONT

Grand Rapids Gerald R. Ford Intl

Mon 2/15

2:10 pm-6:39 pm

1 stop7h 29m

Ontario

Mon 3/1

5:00 am-2:29 pm

1 stop6h 29m

$349

Quickest round-trip

Grand RapidsOntario

GRR Grand Rapids Gerald R. Ford Intl - ONT Ontario

GRRONT

Grand Rapids Gerald R. Ford Intl

Sat 11/14

8:00 am-12:33 pm

1 stop7h 33m

Ontario

Tue 11/17

1:29 pm-10:20 pm

1 stop5h 51m

$405

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 $246.

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	$158
Fastest flight time	6h 33m
Direct flights	None

The best one-way flight to Ontario from Grand Rapids in the past 72 hours is $158. The best round-trip flight deal from Grand Rapids to Ontario found on momondo in the last 72 hours is $246.

The fastest flight from Grand Rapids to Ontario takes 6h 33m

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. 6h 33m 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 4 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 32% of all bookings. The subsequent popular airlines are Southwest at 28%, United Airlines at 27%, 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 2,600 reviews	Search Frontier flights
American Airlines	PriceFrom $303	Free Cancellation	Rating 7.1 12,076 reviews	Search American Airlines flights
United Airlines	PriceFrom $346	Free Cancellation	Rating 7.4 10,214 reviews	Search United Airlines flights
Southwest	PriceFrom $352	Free Cancellation	Rating 8.0 4,189 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 $158

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 11/3. 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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