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.

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

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

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.

$125 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

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

6h 01m1 stop Denver Intl

$271Frontier

Thu, Oct 22 - Sat, Oct 24

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

10h 39m1 stop Denver Intl

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

6h 01m1 stop Denver Intl

$280Frontier

Tue, Oct 13 - Tue, Oct 20

7:00 am - 7:36 pmGRR Grand Rapids Gerald R. Ford Intl-ONT Ontario

15h 36m1 stop Las Vegas Harry Reid Intl

11:30 am - 6:47 pmONT Ontario-GRR Grand Rapids Gerald R. Ford Intl

28h 17m1 stop Denver Intl

$342Multiple Airlines

Mon, Nov 23 - Fri, Dec 4

7:00 am - 2:51 pmGRR Grand Rapids Gerald R. Ford Intl-ONT Ontario

10h 51m1 stop Las Vegas Harry Reid Intl

7:26 pm - 6:47 pmONT Ontario-GRR Grand Rapids Gerald R. Ford Intl

20h 21m2 stops San Francisco Denver Intl

$362Multiple Airlines

Mon, Nov 23 - Fri, Dec 4

5:31 pm - 10:59 pmGRR Grand Rapids Gerald R. Ford Intl-ONT Ontario

8h 28m1 stop Charlotte Douglas

10:25 am - 10:04 pmONT Ontario-GRR Grand Rapids Gerald R. Ford Intl

8h 39m1 stop Dallas/Fort Worth

$379American Airlines

Wed, Oct 21 - Wed, Oct 28

3:57 pm - 10:53 pmGRR Grand Rapids Gerald R. Ford Intl-ONT Ontario

9h 56m2 stops Chicago O'Hare Intl Phoenix Sky Harbor Intl

7:00 am - 5:03 pmONT Ontario-GRR Grand Rapids Gerald R. Ford Intl

7h 03m1 stop Dallas/Fort Worth

$384American Airlines

Wed, Oct 21 - Wed, Oct 28

11:20 am - 6:10 pmGRR Grand Rapids Gerald R. Ford Intl-ONT Ontario

9h 50m1 stop Chicago Midway

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

7h 55m1 stop Chicago Midway

$384Southwest

Tue, Feb 9 - Tue, Feb 16

6:50 am - 1:25 pmGRR Grand Rapids Gerald R. Ford Intl-ONT Ontario

9h 35m2 stops Chicago Midway Phoenix Sky Harbor Intl

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

7h 55m1 stop Chicago Midway

$384Southwest

Tue, Feb 9 - Tue, Feb 16

3:45 pm - 10:51 pmGRR Grand Rapids Gerald R. Ford Intl-ONT Ontario

10h 06m2 stops Chicago O'Hare Intl San Francisco

5:00 am - 2:36 pmONT Ontario-GRR Grand Rapids Gerald R. Ford Intl

6h 36m1 stop Denver Intl

$433United Airlines

Wed, Oct 21 - Sun, Oct 25

7:50 am - 12:33 pmGRR Grand Rapids Gerald R. Ford Intl-ONT Ontario

7h 43m1 stop Denver Intl

5:00 am - 2:36 pmONT Ontario-GRR Grand Rapids Gerald R. Ford Intl

6h 36m1 stop Denver Intl

$443United Airlines

Thu, Nov 19 - Fri, Nov 27

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

6h 11m1 stop Denver Intl

$436Frontier

Tue, Sep 29 - Sat, Oct 3

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

$464Frontier

Tue, Sep 29 - Tue, Oct 6

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

$510Frontier

Tue, Sep 29 - Thu, Oct 8

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

$510Frontier

Tue, Sep 29 - Sat, Oct 3

6:10 pm - 10:49 pmGRR Grand Rapids Gerald R. Ford Intl-ONT Ontario

7h 39m1 stop Chicago O'Hare Intl

1:22 pm - 10:23 pmONT Ontario-GRR Grand Rapids Gerald R. Ford Intl

6h 01m1 stop Denver Intl

$867United Airlines

Wed, Sep 30 - Tue, Oct 6

7:10 am - 5:41 pmGRR Grand Rapids Gerald R. Ford Intl-ONT Ontario

13h 31m2 stops Chicago O'Hare Intl San Francisco

4:03 pm - 8:11 amONT Ontario-GRR Grand Rapids Gerald R. Ford Intl

13h 08m2 stops San Francisco Chicago O'Hare Intl

$963United Airlines

Tue, Sep 29 - Fri, Oct 2

5:44 am - 5:41 pmGRR Grand Rapids Gerald R. Ford Intl-ONT Ontario

14h 57m2 stops Chicago O'Hare Intl San Francisco

4:03 pm - 8:11 amONT Ontario-GRR Grand Rapids Gerald R. Ford Intl

13h 08m2 stops San Francisco Chicago O'Hare Intl

$979United Airlines

Tue, Sep 29 - Fri, Oct 2

6:00 pm - 11:47 pmGRR Grand Rapids Gerald R. Ford Intl-ONT Ontario

8h 47m2 stops Detroit Metropolitan Wayne County Salt Lake City

10:00 pm - 1:58 pmONT Ontario-GRR Grand Rapids Gerald R. Ford Intl

12h 58m2 stops Atlanta Hartsfield-Jackson Detroit Metropolitan Wayne County

$1,007Delta

Tue, Sep 29 - Fri, Oct 2

10:28 am - 8:24 pmGRR Grand Rapids Gerald R. Ford Intl-ONT Ontario

12h 56m2 stops Chicago O'Hare Intl Portland

6:02 am - 11:06 pmONT Ontario-GRR Grand Rapids Gerald R. Ford Intl

14h 04m2 stops Seattle/Tacoma Intl Chicago O'Hare Intl

$2,008Alaska Airlines

Fri, Sep 25 - Fri, Oct 2

5:42 am - 2:16 pmGRR Grand Rapids Gerald R. Ford Intl-ONT Ontario

11h 34m2 stops Chicago O'Hare Intl Seattle/Tacoma Intl

6:02 am - 11:06 pmONT Ontario-GRR Grand Rapids Gerald R. Ford Intl

14h 04m2 stops Seattle/Tacoma Intl Chicago O'Hare Intl

$2,008Alaska Airlines

Fri, Sep 25 - Fri, Oct 2

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Frontier flights from Grand Rapids to Ontario

Our best Frontier deals on Grand Rapids to Ontario flight tickets

Frontier

Oct 22

GRR4:11 pmGrand Rapids Gerald R. Ford Intl

21h 18m

1 stop

ONT10:29 amOntario

Oct 24

ONT6:15 amOntario

6h 01m

1 stop

GRR3:16 pmGrand Rapids Gerald R. Ford Intl

$271

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

$280

Frontier

Oct 22

GRR4:11 pmGrand Rapids Gerald R. Ford Intl

10h 39m

1 stop

ONT11:50 pmOntario

Oct 23

ONT11:52 amOntario

24h 24m

1 stop

GRR3:16 pmGrand Rapids Gerald R. Ford Intl

$297

Southwest flights from Grand Rapids to Ontario

Our best Southwest deals on Grand Rapids to Ontario flight tickets

Southwest

Feb 9

GRR6:50 amGrand Rapids Gerald R. Ford Intl

9h 35m

2 stops

ONT1:25 pmOntario

Feb 16

ONT5:20 amOntario

7h 55m

1 stop

GRR4:15 pmGrand Rapids Gerald R. Ford Intl

$384

Southwest

Feb 5

GRR4:50 pmGrand Rapids Gerald R. Ford Intl

8h 00m

1 stop

ONT9:50 pmOntario

Feb 8

ONT5:20 amOntario

7h 55m

1 stop

GRR4:15 pmGrand Rapids Gerald R. Ford Intl

$394

Southwest

Feb 5

GRR6:40 amGrand Rapids Gerald R. Ford Intl

9h 45m

2 stops

ONT1:25 pmOntario

Feb 8

ONT5:20 amOntario

7h 55m

1 stop

GRR4:15 pmGrand Rapids Gerald R. Ford Intl

$399

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 10/22

4:11 pm-10:29 am

1 stop21h 18m

Ontario

Sat 10/24

6:15 am-3:16 pm

1 stop6h 01m

$271

Grand RapidsOntario

GRR Grand Rapids Gerald R. Ford Intl - ONT Ontario

GRRONT

Grand Rapids Gerald R. Ford Intl

Tue 10/13

4:11 pm-11:50 pm

1 stop10h 39m

Ontario

Tue 10/20

6:15 am-3:16 pm

1 stop6h 01m

$280

Grand RapidsOntario

GRR Grand Rapids Gerald R. Ford Intl - ONT Ontario

GRRONT

Grand Rapids Gerald R. Ford Intl

Mon 11/23

7:00 am-7:36 pm

1 stop15h 36m

Ontario

Fri 12/4

11:30 am-6:47 pm

1 stop28h 17m

$342

Grand RapidsOntario

GRR Grand Rapids Gerald R. Ford Intl - ONT Ontario

GRRONT

Grand Rapids Gerald R. Ford Intl

Mon 11/23

7:00 am-2:51 pm

1 stop10h 51m

Ontario

Fri 12/4

7:26 pm-6:47 pm

2 stops20h 21m

$362

Grand RapidsOntario

GRR Grand Rapids Gerald R. Ford Intl - ONT Ontario

GRRONT

Grand Rapids Gerald R. Ford Intl

Wed 10/21

5:31 pm-10:59 pm

1 stop8h 28m

Ontario

Wed 10/28

10:25 am-10:04 pm

1 stop8h 39m

$379

Grand RapidsOntario

GRR Grand Rapids Gerald R. Ford Intl - ONT Ontario

GRRONT

Grand Rapids Gerald R. Ford Intl

Wed 10/21

3:57 pm-10:53 pm

2 stops9h 56m

Ontario

Wed 10/28

7:00 am-5:03 pm

1 stop7h 03m

$384

Grand RapidsOntario

GRR Grand Rapids Gerald R. Ford Intl - ONT Ontario

GRRONT

Grand Rapids Gerald R. Ford Intl

Tue 2/9

11:20 am-6:10 pm

1 stop9h 50m

Ontario

Tue 2/16

5:20 am-4:15 pm

1 stop7h 55m

$384

Grand RapidsOntario

GRR Grand Rapids Gerald R. Ford Intl - ONT Ontario

GRRONT

Grand Rapids Gerald R. Ford Intl

Tue 2/9

6:50 am-1:25 pm

2 stops9h 35m

Ontario

Tue 2/16

5:20 am-4:15 pm

1 stop7h 55m

$384

Grand RapidsOntario

GRR Grand Rapids Gerald R. Ford Intl - ONT Ontario

GRRONT

Grand Rapids Gerald R. Ford Intl

Wed 10/21

3:45 pm-10:51 pm

2 stops10h 06m

Ontario

Sun 10/25

5:00 am-2:36 pm

1 stop6h 36m

$433

Quickest round-trip

Grand RapidsOntario

GRR Grand Rapids Gerald R. Ford Intl - ONT Ontario

GRRONT

Grand Rapids Gerald R. Ford Intl

Thu 11/19

7:50 am-12:33 pm

1 stop7h 43m

Ontario

Fri 11/27

5:00 am-2:36 pm

1 stop6h 36m

$443

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 $362 to $480.
The lowest price recently found on this route was $271.

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 114% 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	$125
Fastest flight time	6h 20m
Direct flights	None

The best one-way flight to Ontario from Grand Rapids in the past 72 hours is $125. The best round-trip flight deal from Grand Rapids to Ontario found on momondo in the last 72 hours is $271.

The fastest flight from Grand Rapids to Ontario takes 6h 20m

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 20m 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 33% of all bookings. The subsequent popular airlines are Southwest at 29%, United Airlines at 26%, 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 2,578 reviews	Search Frontier flights
American Airlines	PriceFrom $303	Free Cancellation	Rating 7.0 12,077 reviews	Search American Airlines flights
United Airlines	PriceFrom $346	Free Cancellation	Rating 7.4 10,233 reviews	Search United Airlines flights
Southwest	PriceFrom $352	Free Cancellation	Rating 8.0 4,199 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 $125

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 10/24. 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

Southwest flights from Grand Rapids to Ontario

Our best Southwest 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

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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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