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

Frontier, Southwest, 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 August 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.

$122 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 - 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

$238Frontier

Thu, Oct 1 - 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

$238Frontier

Tue, Oct 6 - Sat, Oct 10

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

10h 39m1 stop Denver Intl

11:52 am - 10:24 pmONT Ontario-GRR Grand Rapids Gerald R. Ford Intl

31h 32m2 stops Denver Intl Phoenix Sky Harbor Intl

$286Multiple Airlines

Sat, Oct 24 - Wed, Oct 28

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

25h 31m1 stop Denver Intl

6:15 am - 11:35 pmONT Ontario-GRR Grand Rapids Gerald R. Ford Intl

14h 20m2 stops Denver Intl Nashville Intl

$316Multiple Airlines

Fri, Sep 25 - Fri, Oct 2

5:53 pm - 11:52 pmGRR Grand Rapids Gerald R. Ford Intl-ONT Ontario

8h 59m1 stop Dallas/Fort Worth

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

7h 03m1 stop Dallas/Fort Worth

$337American Airlines

Wed, Oct 21 - Sat, Oct 24

6:07 pm - 10:45 pmGRR Grand Rapids Gerald R. Ford Intl-ONT Ontario

7h 38m1 stop Dallas/Fort Worth

6:00 am - 3:27 pmONT Ontario-GRR Grand Rapids Gerald R. Ford Intl

6h 27m1 stop Chicago O'Hare Intl

$337American Airlines

Sat, Feb 6 - Mon, Feb 8

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

$342Southwest

Sat, Feb 6 - Mon, Feb 8

11:30 am - 10:14 pmGRR Grand Rapids Gerald R. Ford Intl-ONT Ontario

13h 44m2 stops Minneapolis St Paul Atlanta Hartsfield-Jackson

7:00 am - 11:02 pmONT Ontario-GRR Grand Rapids Gerald R. Ford Intl

13h 02m2 stops Seattle/Tacoma Intl Minneapolis St Paul

$347Delta

Sat, Feb 6 - Mon, Feb 8

3:47 pm - 11:55 pmGRR Grand Rapids Gerald R. Ford Intl-ONT Ontario

11h 08m2 stops Detroit Metropolitan Wayne County Salt Lake City

6:01 pm - 9:55 amONT Ontario-GRR Grand Rapids Gerald R. Ford Intl

12h 54m2 stops Seattle/Tacoma Intl Detroit Metropolitan Wayne County

$347Delta

Wed, Oct 21 - Sat, Oct 24

5:35 pm - 11:45 pmGRR Grand Rapids Gerald R. Ford Intl-ONT Ontario

9h 10m2 stops Chicago Midway Phoenix Sky Harbor Intl

8:55 am - 5:10 pmONT Ontario-GRR Grand Rapids Gerald R. Ford Intl

5h 15m1 stop Denver Intl

$358Southwest

Thu, Oct 22 - Sat, Oct 24

Cheap last minute flights

Enter your travel dates to find the best prices.

8:01 pm - 11:50 pmGRR Grand Rapids Gerald R. Ford Intl-ONT Ontario

6h 49m1 stop Denver Intl

6:00 am - 7:06 pmONT Ontario-GRR Grand Rapids Gerald R. Ford Intl

10h 06m1 stop Denver Intl

$408Frontier

Fri, Aug 28 - Sun, Sep 6

8:01 pm - 11:50 pmGRR Grand Rapids Gerald R. Ford Intl-ONT Ontario

6h 49m1 stop Denver Intl

6:00 am - 7:06 pmONT Ontario-GRR Grand Rapids Gerald R. Ford Intl

10h 06m1 stop Denver Intl

$418Frontier

Fri, Aug 28 - Sun, Sep 6

8:01 pm - 10:04 amGRR Grand Rapids Gerald R. Ford Intl-ONT Ontario

17h 03m1 stop Denver Intl

3:40 pm - 8:48 pmONT Ontario-GRR Grand Rapids Gerald R. Ford Intl

26h 08m2 stops Las Vegas Harry Reid Intl Nashville Intl

$654Multiple Airlines

Fri, Aug 28 - Sun, Aug 30

8:01 pm - 4:22 pmGRR Grand Rapids Gerald R. Ford Intl-ONT Ontario

23h 21m2 stops Denver Intl Las Vegas Harry Reid Intl

3:40 pm - 10:31 pmONT Ontario-GRR Grand Rapids Gerald R. Ford Intl

27h 51m1 stop Las Vegas Harry Reid Intl

$774Multiple Airlines

Sun, Aug 30 - Wed, Sep 2

7:23 am - 6:15 pmGRR Grand Rapids Gerald R. Ford Intl-ONT Ontario

13h 52m2 stops Chicago O'Hare Intl Phoenix Sky Harbor Intl

6:00 am - 11:00 pmONT Ontario-GRR Grand Rapids Gerald R. Ford Intl

14h 00m2 stops Dallas/Fort Worth Chicago O'Hare Intl

$890American Airlines

Sat, Aug 29 - Tue, Sep 1

7:33 am - 6:15 pmGRR Grand Rapids Gerald R. Ford Intl-ONT Ontario

13h 42m2 stops Chicago O'Hare Intl Phoenix Sky Harbor Intl

7:05 am - 11:00 pmONT Ontario-GRR Grand Rapids Gerald R. Ford Intl

12h 55m2 stops Dallas/Fort Worth Chicago O'Hare Intl

$900American Airlines

Mon, Aug 31 - Wed, Sep 2

3:56 pm - 10:35 pmGRR Grand Rapids Gerald R. Ford Intl-ONT Ontario

9h 39m1 stop Chicago O'Hare Intl

1:56 pm - 10:02 amONT Ontario-GRR Grand Rapids Gerald R. Ford Intl

17h 06m2 stops San Francisco Chicago O'Hare Intl

$1,018United Airlines

Sun, Aug 30 - Mon, Aug 31

5:00 am - 12:50 pmGRR Grand Rapids Gerald R. Ford Intl-ONT Ontario

10h 50m2 stops Chicago O'Hare Intl Denver Intl

7:13 pm - 12:58 pmONT Ontario-GRR Grand Rapids Gerald R. Ford Intl

14h 45m2 stops San Francisco Chicago O'Hare Intl

$1,024United Airlines

Sun, Aug 30 - Mon, Aug 31

7:00 am - 2:10 pmGRR Grand Rapids Gerald R. Ford Intl-ONT Ontario

10h 10m2 stops Chicago Midway Denver Intl

9:40 am - 9:15 pmONT Ontario-GRR Grand Rapids Gerald R. Ford Intl

8h 35m2 stops Las Vegas Harry Reid Intl Denver Intl

$1,067Southwest

Sun, Aug 30 - Wed, Sep 2

12:45 pm - 7:35 pmGRR Grand Rapids Gerald R. Ford Intl-ONT Ontario

9h 50m2 stops Denver Intl Las Vegas Harry Reid Intl

12:25 pm - 10:55 pmONT Ontario-GRR Grand Rapids Gerald R. Ford Intl

7h 30m2 stops Denver Intl Chicago Midway

$1,147Southwest

Sun, Aug 30 - Mon, Aug 31

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Delta flights from Grand Rapids to Ontario

Our best Delta deals on Grand Rapids to Ontario flight tickets

Delta

Feb 6

GRR11:30 amGrand Rapids Gerald R. Ford Intl

13h 44m

2 stops

ONT10:14 pmOntario

Feb 8

ONT7:00 amOntario

13h 02m

2 stops

GRR11:02 pmGrand Rapids Gerald R. Ford Intl

$347

Delta

Sep 10

GRR6:10 amGrand Rapids Gerald R. Ford Intl

7h 55m

1 stop

ONT11:05 amOntario

Sep 14

ONT10:00 pmOntario

13h 58m

2 stops

GRR2:58 pmGrand Rapids Gerald R. Ford Intl

$363

Delta

Sep 10

GRR12:59 pmGrand Rapids Gerald R. Ford Intl

10h 06m

1 stop

ONT8:05 pmOntario

Sep 12

ONT12:17 pmOntario

7h 51m

1 stop

GRR11:08 pmGrand Rapids Gerald R. Ford Intl

$379

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

10h 23m

1 stop

ONT11:47 pmOntario

Oct 6

ONT6:15 amOntario

6h 11m

1 stop

GRR3:26 pmGrand Rapids Gerald R. Ford Intl

$238

Frontier

Sep 21

GRR11:59 amGrand Rapids Gerald R. Ford Intl

25h 31m

1 stop

ONT10:30 amOntario

Sep 28

ONT11:45 amOntario

24h 41m

1 stop

GRR3:26 pmGrand Rapids Gerald R. Ford Intl

$248

Frontier

Sep 17

GRR4:24 pmGrand Rapids Gerald R. Ford Intl

10h 23m

1 stop

ONT11:47 pmOntario

Sep 22

ONT6:15 amOntario

6h 11m

1 stop

GRR3:26 pmGrand Rapids Gerald R. Ford Intl

$254

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-11:47 pm

1 stop10h 23m

Ontario

Tue 10/6

6:15 am-3:26 pm

1 stop6h 11m

$238

Grand RapidsOntario

GRR Grand Rapids Gerald R. Ford Intl - ONT Ontario

GRRONT

Grand Rapids Gerald R. Ford Intl

Tue 10/6

4:24 pm-11:47 pm

1 stop10h 23m

Ontario

Sat 10/10

6:15 am-3:16 pm

1 stop6h 01m

$238

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

Wed 10/28

11:52 am-10:24 pm

2 stops31h 32m

$286

Grand RapidsOntario

GRR Grand Rapids Gerald R. Ford Intl - ONT Ontario

GRRONT

Grand Rapids Gerald R. Ford Intl

Fri 9/25

11:59 am-10:30 am

1 stop25h 31m

Ontario

Fri 10/2

6:15 am-11:35 pm

2 stops14h 20m

$316

Grand RapidsOntario

GRR Grand Rapids Gerald R. Ford Intl - ONT Ontario

GRRONT

Grand Rapids Gerald R. Ford Intl

Wed 10/21

5:53 pm-11:52 pm

1 stop8h 59m

Ontario

Sat 10/24

7:00 am-5:03 pm

1 stop7h 03m

$337

Quickest round-trip

Grand RapidsOntario

GRR Grand Rapids Gerald R. Ford Intl - ONT Ontario

GRRONT

Grand Rapids Gerald R. Ford Intl

Sat 2/6

6:07 pm-10:45 pm

1 stop7h 38m

Ontario

Mon 2/8

6:00 am-3:27 pm

1 stop6h 27m

$337

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

$342

Grand RapidsOntario

GRR Grand Rapids Gerald R. Ford Intl - ONT Ontario

GRRONT

Grand Rapids Gerald R. Ford Intl

Sat 2/6

11:30 am-10:14 pm

2 stops13h 44m

Ontario

Mon 2/8

7:00 am-11:02 pm

2 stops13h 02m

$347

Grand RapidsOntario

GRR Grand Rapids Gerald R. Ford Intl - ONT Ontario

GRRONT

Grand Rapids Gerald R. Ford Intl

Wed 10/21

3:47 pm-11:55 pm

2 stops11h 08m

Ontario

Sat 10/24

6:01 pm-9:55 am

2 stops12h 54m

$347

Grand RapidsOntario

GRR Grand Rapids Gerald R. Ford Intl - ONT Ontario

GRRONT

Grand Rapids Gerald R. Ford Intl

Thu 10/22

5:35 pm-11:45 pm

2 stops9h 10m

Ontario

Sat 10/24

8:55 am-5:10 pm

1 stop5h 15m

$358

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 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 $364.

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

As of August 2026, prices for Grand Rapids to Ontario flights are approximately 73% 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	$122
Fastest flight time	6h 49m
Direct flights	None

The best one-way flight to Ontario from Grand Rapids in the past 72 hours is $122. The best round-trip flight deal from Grand Rapids to Ontario found on momondo in the last 72 hours is $238.

The fastest flight from Grand Rapids to Ontario takes 6h 49m

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 49m 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 August 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 34% of all bookings. The subsequent popular airlines are United Airlines at 26%, Southwest at 16%, and Frontier at 13%.

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 2,645 reviews	Search Frontier flights
Delta	PriceFrom $277	Free Cancellation	Rating 7.8 8,531 reviews	Search Delta flights
American Airlines	PriceFrom $303	Free Cancellation	Rating 7.1 12,010 reviews	Search American Airlines flights
United Airlines	PriceFrom $346	Free Cancellation	Rating 7.4 10,127 reviews	Search United Airlines flights
Southwest	PriceFrom $368	Free Cancellation	Rating 8.0 4,203 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

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Cheap flights from Grand Rapids to Los Angeles from $122

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 10/1. 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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Delta flights from Grand Rapids to Ontario

Our best Delta deals on Grand Rapids to Ontario flight tickets

Frontier flights from Grand Rapids to Ontario

Our best Frontier 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 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

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

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