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

Frontier is the most popular carrier 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 October 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.

$123 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

Round-trip

One-way

Last minute

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

$280Frontier

Sat, Oct 24 - Sat, Oct 31

7:32 pm - 10:45 amGRR Grand Rapids Gerald R. Ford Intl-ONT Ontario

18h 13m1 stop Denver Intl

6:00 am - 6:47 pmONT Ontario-GRR Grand Rapids Gerald R. Ford Intl

9h 47m1 stop Denver Intl

$290Frontier

Sat, Dec 5 - Sat, Dec 12

7:00 am - 2:34 pmGRR Grand Rapids Gerald R. Ford Intl-ONT Ontario

10h 34m1 stop Las Vegas Harry Reid Intl

10:35 am - 3:13 pmONT Ontario-GRR Grand Rapids Gerald R. Ford Intl

25h 38m1 stop Las Vegas Harry Reid Intl

$355Multiple Airlines

Thu, Oct 22 - Tue, Oct 27

7:00 am - 7:40 pmGRR Grand Rapids Gerald R. Ford Intl-ONT Ontario

15h 40m2 stops Las Vegas Harry Reid Intl San Francisco

5:07 pm - 3:13 pmONT Ontario-GRR Grand Rapids Gerald R. Ford Intl

19h 06m1 stop Las Vegas Harry Reid Intl

$374Multiple Airlines

Thu, Oct 22 - Tue, Oct 27

7:05 am - 1:25 pmGRR Grand Rapids Gerald R. Ford Intl-ONT Ontario

9h 20m1 stop Dallas/Fort Worth

5:44 am - 3:24 pmONT Ontario-GRR Grand Rapids Gerald R. Ford Intl

6h 40m1 stop Dallas/Fort Worth

$379American Airlines

Tue, Jan 19 - Thu, Feb 4

4:04 pm - 11:13 pmGRR Grand Rapids Gerald R. Ford Intl-ONT Ontario

10h 09m1 stop Dallas/Fort Worth

10:38 am - 10:14 pmONT Ontario-GRR Grand Rapids Gerald R. Ford Intl

8h 36m1 stop Dallas/Fort Worth

$379American Airlines

Tue, Jan 19 - Thu, Feb 4

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

9h 35m2 stops Chicago Midway Phoenix Sky Harbor Intl

6:45 am - 3:20 pmONT Ontario-GRR Grand Rapids Gerald R. Ford Intl

5h 35m1 stop Chicago Midway

$384Southwest

Thu, Feb 4 - Tue, Feb 9

5:29 am - 12:33 pmGRR Grand Rapids Gerald R. Ford Intl-ONT Ontario

10h 04m2 stops Chicago O'Hare Intl Denver Intl

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

6h 29m1 stop Denver Intl

$384United Airlines

Tue, Jan 19 - Thu, Feb 4

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

9h 35m2 stops Chicago Midway Phoenix Sky Harbor Intl

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

9h 00m2 stops Phoenix Sky Harbor Intl Chicago Midway

$389Southwest

Tue, Jan 19 - Thu, Feb 4

3:42 pm - 8:51 pmGRR Grand Rapids Gerald R. Ford Intl-ONT Ontario

8h 09m1 stop Denver Intl

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

6h 36m1 stop Denver Intl

$411United Airlines

Thu, Nov 5 - Mon, Nov 9

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

6:25 am - 3:16 pmONT Ontario-GRR Grand Rapids Gerald R. Ford Intl

5h 51m1 stop Denver Intl

$395Frontier

Sat, Oct 3 - Thu, Nov 5

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

$464Frontier

Tue, Oct 6 - Tue, Oct 13

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

Sun, Oct 4 - Tue, Oct 6

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

25h 31m1 stop Denver Intl

11:45 am - 3:26 pmONT Ontario-GRR Grand Rapids Gerald R. Ford Intl

24h 41m1 stop Denver Intl

$520Frontier

Fri, Oct 2 - Mon, Oct 5

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

21h 06m1 stop Denver Intl

6:56 pm - 9:03 amONT Ontario-GRR Grand Rapids Gerald R. Ford Intl

11h 07m2 stops Seattle/Tacoma Intl Chicago O'Hare Intl

$845Multiple Airlines

Sat, Oct 3 - Mon, Oct 5

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

1:05 pm - 12:51 amONT Ontario-GRR Grand Rapids Gerald R. Ford Intl

8h 46m2 stops Phoenix Sky Harbor Intl Chicago O'Hare Intl

$1,073American Airlines

Sat, Oct 3 - Mon, Oct 5

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

7h 39m1 stop Chicago O'Hare Intl

1:24 pm - 10:23 pmONT Ontario-GRR Grand Rapids Gerald R. Ford Intl

5h 59m1 stop Denver Intl

$1,077United Airlines

Fri, Oct 2 - Mon, Oct 5

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

7h 39m1 stop Chicago O'Hare Intl

1:24 pm - 10:23 pmONT Ontario-GRR Grand Rapids Gerald R. Ford Intl

5h 59m1 stop Denver Intl

$1,157United Airlines

Fri, Oct 2 - Mon, Oct 5

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 - 8:09 pmONT Ontario-GRR Grand Rapids Gerald R. Ford Intl

11h 07m2 stops Seattle/Tacoma Intl Chicago O'Hare Intl

$1,207Alaska Airlines

Fri, Oct 2 - Mon, Oct 5

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 - 8:09 pmONT Ontario-GRR Grand Rapids Gerald R. Ford Intl

11h 07m2 stops Seattle/Tacoma Intl Chicago O'Hare Intl

$2,008Alaska Airlines

Fri, Oct 2 - Mon, Oct 5

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Delta flights from Grand Rapids to Ontario

Our best Delta deals on Grand Rapids to Ontario flight tickets

Delta

Nov 26

GRR10:47 amGrand Rapids Gerald R. Ford Intl

10h 43m

2 stops

ONT6:30 pmOntario

Dec 10

ONT6:00 amOntario

10h 05m

2 stops

GRR7:05 pmGrand Rapids Gerald R. Ford Intl

$419

Delta

Feb 25

GRR11:30 amGrand Rapids Gerald R. Ford Intl

14h 13m

2 stops

ONT10:43 pmOntario

Feb 28

ONT6:00 amOntario

9h 59m

2 stops

GRR6:59 pmGrand Rapids Gerald R. Ford Intl

$453

Delta

Nov 26

GRR2:45 pmGrand Rapids Gerald R. Ford Intl

8h 04m

1 stop

ONT7:49 pmOntario

Dec 10

ONT6:00 amOntario

10h 05m

2 stops

GRR7:05 pmGrand Rapids Gerald R. Ford Intl

$469

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

$280

Frontier

Dec 5

GRR7:32 pmGrand Rapids Gerald R. Ford Intl

18h 13m

1 stop

ONT10:45 amOntario

Dec 12

ONT6:00 amOntario

9h 47m

1 stop

GRR6:47 pmGrand Rapids Gerald R. Ford Intl

$290

Frontier

Oct 20

GRR4:11 pmGrand Rapids Gerald R. Ford Intl

21h 18m

1 stop

ONT10:29 amOntario

Oct 23

ONT11:52 amOntario

24h 24m

1 stop

GRR3:16 pmGrand Rapids Gerald R. Ford Intl

$296

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

$280

Grand RapidsOntario

GRR Grand Rapids Gerald R. Ford Intl - ONT Ontario

GRRONT

Grand Rapids Gerald R. Ford Intl

Sat 12/5

7:32 pm-10:45 am

1 stop18h 13m

Ontario

Sat 12/12

6:00 am-6:47 pm

1 stop9h 47m

$290

Grand RapidsOntario

GRR Grand Rapids Gerald R. Ford Intl - ONT Ontario

GRRONT

Grand Rapids Gerald R. Ford Intl

Thu 10/22

7:00 am-2:34 pm

1 stop10h 34m

Ontario

Tue 10/27

10:35 am-3:13 pm

1 stop25h 38m

$355

Grand RapidsOntario

GRR Grand Rapids Gerald R. Ford Intl - ONT Ontario

GRRONT

Grand Rapids Gerald R. Ford Intl

Thu 10/22

7:00 am-7:40 pm

2 stops15h 40m

Ontario

Tue 10/27

5:07 pm-3:13 pm

1 stop19h 06m

$374

Grand RapidsOntario

GRR Grand Rapids Gerald R. Ford Intl - ONT Ontario

GRRONT

Grand Rapids Gerald R. Ford Intl

Tue 1/19

7:05 am-1:25 pm

1 stop9h 20m

Ontario

Thu 2/4

5:44 am-3:24 pm

1 stop6h 40m

$379

Grand RapidsOntario

GRR Grand Rapids Gerald R. Ford Intl - ONT Ontario

GRRONT

Grand Rapids Gerald R. Ford Intl

Tue 1/19

4:04 pm-11:13 pm

1 stop10h 09m

Ontario

Thu 2/4

10:38 am-10:14 pm

1 stop8h 36m

$379

Grand RapidsOntario

GRR Grand Rapids Gerald R. Ford Intl - ONT Ontario

GRRONT

Grand Rapids Gerald R. Ford Intl

Thu 2/4

6:50 am-1:25 pm

2 stops9h 35m

Ontario

Tue 2/9

6:45 am-3:20 pm

1 stop5h 35m

$384

Grand RapidsOntario

GRR Grand Rapids Gerald R. Ford Intl - ONT Ontario

GRRONT

Grand Rapids Gerald R. Ford Intl

Tue 1/19

5:29 am-12:33 pm

2 stops10h 04m

Ontario

Thu 2/4

5:00 am-2:29 pm

1 stop6h 29m

$384

Grand RapidsOntario

GRR Grand Rapids Gerald R. Ford Intl - ONT Ontario

GRRONT

Grand Rapids Gerald R. Ford Intl

Tue 1/19

6:50 am-1:25 pm

2 stops9h 35m

Ontario

Thu 2/4

7:40 am-7:40 pm

2 stops9h 00m

$389

Quickest round-trip

Grand RapidsOntario

GRR Grand Rapids Gerald R. Ford Intl - ONT Ontario

GRRONT

Grand Rapids Gerald R. Ford Intl

Thu 11/5

3:42 pm-8:51 pm

1 stop8h 09m

Ontario

Mon 11/9

5:00 am-2:36 pm

1 stop6h 36m

$411

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 $364 to $518.
The lowest price recently found on this route was $280.

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 July instead. Flights to Ontario in July, while not as cheap as those in February, still average around $407.

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

As of October 2026, prices for Grand Rapids to Ontario flights are approximately 16% cheaper 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	$123
Fastest flight time	7h 05m
Direct flights	None

The best one-way flight to Ontario from Grand Rapids in the past 72 hours is $123. The best round-trip flight deal from Grand Rapids to Ontario found on momondo in the last 72 hours is $280.

The fastest flight from Grand Rapids to Ontario takes 7h 05m

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 05m 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 October 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 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 2,565 reviews	Search Frontier flights
American Airlines	PriceFrom $303	Free Cancellation	Rating 7.0 12,101 reviews	Search American Airlines flights
United Airlines	PriceFrom $346	Free Cancellation	Rating 7.4 10,270 reviews	Search United Airlines flights
Southwest	PriceFrom $352	Free Cancellation	Rating 8.0 4,208 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.

Start using Trips

Find my bookings

Get notified when prices go down

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

1 adult

Sat 10/31

Sat 11/7

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States

Nearby airports

Airlines

Cabin classes

Other United States destinations

Other flights from Grand Rapids

Complete your trip

Feeling lucky

Cheap flights from Grand Rapids to Los Angeles from $123

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 10/19. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from Grand Rapids to Los Angeles

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

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

momondo Fare Finder

Use the filters below to find and compare flights from Grand Rapids to Ontario that are best for you.

See travel insights to Los Angeles from

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.

Popular cities in the United States

Popular flights according to clicks in the last 7 days on momondo

Fly to other destinations from Grand Rapids

According to popular flight searches on momondo this year

Complete your trip to Los Angeles

Explore popular destinations other users love

According to popular flight searches on momondo this year