ONT - GRR

$118 Find Cheap Flights from Ontario to Grand Rapids - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to Grand Rapids departing on 9/15. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$240
Typical prices: $362-$524
Frontier
Thu 8/20Mon 8/24
ONT - GRR • 1 stop
Cheapest one-way
$118
Frontier
Tue 9/15
ONT - GRR • 1 stop
Top airlines
Cheapest • from $240 (round-trip)
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Ontario and Grand Rapids. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $414 (round-trip)
Shortest trip • 6h 13m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 49% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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We hope you love your trip to Grand Rapids!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Ontario to Grand Rapids (ONT-GRR)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Grand Rapids that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Ontario to Grand Rapids

Thu, Aug 20 - Mon, Aug 24
Frontier Logo
6:00 am - 7:06 pm
ONT
-
GRR
10h 06m
1 stop
Frontier Logo
8:01 pm - 11:50 pm
GRR
-
ONT
6h 49m
1 stop
$240Frontier
Wed, Aug 19 - Mon, Aug 24
Frontier Logo
7:56 pm - 7:06 pm
ONT
-
GRR
20h 10m
1 stop
Frontier Logo
8:01 pm - 11:50 pm
GRR
-
ONT
6h 49m
1 stop
$250Frontier
Thu, Sep 10 - Tue, Sep 15
Frontier Logo
6:00 am - 3:42 pm
ONT
-
GRR
6h 42m
1 stop
Frontier Logo
4:37 pm - 11:55 pm
GRR
-
ONT
10h 18m
1 stop
$260Frontier
Thu, Aug 13 - Sat, Aug 15
Frontier Logo
10:49 am - 7:48 pm
ONT
-
GRR
5h 59m
1 stop
Frontier Logo
8:33 pm - 11:50 pm
GRR
-
ONT
6h 17m
1 stop
$262Frontier
Fri, Aug 28 - Mon, Aug 31
Frontier Logo
6:00 am - 7:06 pm
ONT
-
GRR
10h 06m
1 stop
Frontier Logo
8:01 pm - 11:50 pm
GRR
-
ONT
6h 49m
1 stop
$274Frontier
Thu, Sep 10 - Thu, Sep 17
Frontier Logo
6:00 am - 3:42 pm
ONT
-
GRR
6h 42m
1 stop
Frontier Logo
4:37 pm - 11:55 pm
GRR
-
ONT
10h 18m
1 stop
$280Frontier
Sat, Aug 29 - Mon, Sep 7
Frontier Logo
6:00 am - 7:06 pm
ONT
-
GRR
10h 06m
1 stop
Frontier Logo
8:01 pm - 11:50 pm
GRR
-
ONT
6h 49m
1 stop
$284Frontier
Sat, Aug 8 - Sat, Aug 15
Frontier Logo
6:00 am - 7:48 pm
ONT
-
GRR
10h 48m
1 stop
Frontier Logo
8:33 pm - 11:50 pm
GRR
-
ONT
6h 17m
1 stop
$289Frontier
Sun, Aug 9 - Sat, Aug 15
Frontier Logo
10:49 am - 7:48 pm
ONT
-
GRR
5h 59m
1 stop
Frontier Logo
8:33 pm - 11:50 pm
GRR
-
ONT
6h 17m
1 stop
$294Frontier
Thu, Aug 13 - Fri, Aug 14
Frontier Logo
10:49 am - 7:48 pm
ONT
-
GRR
5h 59m
1 stop
Frontier Logo
8:33 pm - 11:50 pm
GRR
-
ONT
6h 17m
1 stop
$296Frontier
Booking Insights

KAYAK's insights & trends for Ontario to Grand Rapids flights

Get data-powered insights and trends into flights from Ontario to Grand Rapids to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Ontario to Grand Rapids?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Ontario to Grand Rapids departing in August.

What is the cheapest month to fly from Ontario to Grand Rapids?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Ontario to Grand Rapids, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Ontario to Grand Rapids is May, where tickets cost $229 (return) on average. On the other hand, the most expensive months are April and June, where the average cost of round-trip tickets is $796 and $557 respectively.

Good to know

Low season

April

Cheapest flight

$118
Best time to beat the crowds but there is an average 76% increase in price.
Most popular time to fly with an average 4% increase in price.
Flight from Ontario to Grand Rapids

When to book flights from Ontario to Grand Rapids

Are your dates flexible? Find out the best times to travel from Ontario to Grand Rapids based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Ontario to Grand Rapids

  • What is the cheapest flight from Ontario to Grand Rapids?

    In the last 5 days, the lowest price for a flight from Ontario to Grand Rapids was $118 for a one-way ticket and $240 for a round-trip.

  • Do I need a passport to fly between Ontario and Grand Rapids?

    No, a passport isn't needed to fly from Ontario to Grand Rapids. However, local authorities might ask for an official ID.

  • Which aircraft models fly most regularly from Ontario to Grand Rapids?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Ontario to Grand Rapids?

    Star Alliance, and oneworld are the airline alliances operating flights between Ontario and Grand Rapids, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from Ontario to Grand Rapids, Southwest or United Airlines?

    The two airlines most popular with KAYAK users for flights from Ontario to Grand Rapids are Southwest and United Airlines. With an average price for the route of $466 and an overall rating of 8.0, Southwest is the most popular choice. United Airlines is also a great choice for the route, with an average price of $411 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Ontario to Grand Rapids?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ontario to Grand Rapids.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to Grand Rapids?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Grand Rapids from Ontario is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Ontario to Grand Rapids?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Grand Rapids with an airline and back to Ontario with another airline. Booking your flights between Ontario and GRR can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario to Grand Rapids?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Grand Rapids from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 4 airlines serving from Ontario to Grand Rapids

 
See real verified KAYAK customer reviews for airlines flying from Ontario to Grand Rapids. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Ontario to Grand Rapids? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4243 reviews
8.0Comfort
8.6Crew
7.0Food
8.1Boarding
7.5Entertainment
Airline reviews

Red eye from San Diego. Temperature of the cabin was way too warm and the air duct flowed very little air.

6.0 GoodGordon, Jul 2026
SAN - MCO
Read more Southwest reviews

Red eye from San Diego. Temperature of the cabin was way too warm and the air duct flowed very little air.

I think Southwest is the number one airline that anyone can fly I have flown for the first time Frontier and what a joke and their customer service United was a very strange experience I'm only sticking to Southwest from here on out for sure

Great job Southwest! My family doesn't fly often but we felt safe the whole time.

Flight was delayed, full flight and I had to change gates. Southwest flights are always late later in the day.

Was fine, delayed and feels like southwest is always late

The entire experience from boarding to landing was amazing! The crew were very friendly. Will definitely be back.

Delayed flight, lack of information, boarding process is a mess as is the carryon luggage causing issues when leaving the plane….just a poor experience.

Southwest like most American domestic airlines, is a mediocre airline. But it is among the cheapest. Oh well.

The plane was not very clean. Lots of napkins and kleenex on the floor and in the seat pocket

I liked receiving attention from aged and well experienced flight attendants. I disliked the non-gluten-free snack but I brought my own so I was OK.

It was a short, comfortable flight. It did leave an hour late due to the pilot having to be replaced (family emergency) but that didn’t inconvenience myself & my friend. The situation was explained, eventually.

UA594 was delayed multiple times. I ended up getting picked up so I can make it in time for work 6AM on Monday, 7/6/2026

Boarded from a very small gate at LAX. Staff at gate had us line up, then waited 25 minutes to board without a word of explanation. Plane arrived on time then waited 20 minutes for a plane to vacate our gate. Majority of bags arrived after 15 minutes but it took an hour for a small number of remaining bags to be off-loaded despite my “priority” bag tag.

Great staff. Clean plane, but we were delayed for more than an hour due to maintenance issues and had to board another plane.

Lost one piece of luggage even though I checked in 2.5 hours before the flight

Seat pitch is horrible especially on the 15 hour flight. Gate crew at SFO was Outstanding. The flight crew was also great.

Plane was was better than th YVR to ORD flight but was a fraction of the distance. Fly your better planes on longer distance flights.

In this flight we had selected seating for our family in the middle of the plane in a 2x2 format. The airline changed them to the very back row of the plane and split them to 3x1. Why pay for seats that allow seat selection if the airline will just move them to the worst seats in the plane?

The flight was canceled. Got rebooked to Chicago and when we arrived our luggage where to there. They were going to our original destination the day after. They would not deliver them to our house. We had to go pick them up.

Upgrade planes to have larger overhead bins, especially on this popular route and first class. Easy flight to Chicago, good service in first class. Can't wait for seatback entertainment to be brought back. I like the free wifi and messaging with T-Mobile. Although, the tray tables are not big enough to work even on a small laptop - so why is it called "business" class? Flight attendant said that the flight was too short to even serve water. I've flown that route several times, and that is the first time I ever heard that. No chargers in the seats. Rough landing.

Ontario airport boarding was very easy to park and access, is clean and TSA took 10 minutes total. Check-in was a breeze and cruise was very nice.

Good flight, seated and had a water within 5 minutes. Crew was hospitable.

The flight was on time and arrived early. The crew were friendly and helpful.

Experience was good. We were delayed in leaving by 15 mins because the flight was waiting on a family that was late in getting to the gate. Food and drink options were as expected. I highly recommend checking in ahead of time using the airline’s app so that it’s quicker to get your luggage tags as soon as you arrive at the terminal. No more waiting in long lines!

It took way too long to diagnose and solve the problem of a broken crew member cabin seat. Though compensation for the volunteer who left the flight was very kind.

The AA staff person who checked our bags was curt and almost rude. The FA also seemed unhappy doing her job. Overall it was like riding the school bus back in grade school.

The chair cushions may need an upgrade. I have been noticing they are so worn out, thin so you’d sit in a dip 😄. Other than that, all was an enjoyable trip. Thanks AA!

VERY disappointed at the agent checking in my luggage. I know that the weight limit is 23 kg, a little over 50 pounds (50.71 pounds). Yet the agent kept repeating "50 pounds". So I said, the limit is 23 kg, and she had the audacity to say 'no, it is 22 kg!" Imagine my surprise. Was she ignorant or was she poorly trained? Not sure. The boarding process was pretty good. The speakers were loud enough so I still could hear them despite inconsiderate passengers continuing to speak while the announcements were going on. During the flight, the teenage girl sitting behind me kept pressing her feet to the back of my chair. I turned around several times, yet she did not get the hint. I did not make a fuss since I sense I had a bad streak that night with AA, so I just did the best I can to lean forward and not let that bother me.

The flight was delayed to Charlotte, but we made up some time in the air, so I do not have big complaints.

It was wonderful upgrading to first. Plane was so cold thou. Crew was great. Wish there was a food option in first for such a long flight. Doesnt matter the time of day. Chintzy.

It was awful everything about it terrible I will never ever ever ride it again

The takeoff was the smoothest I've ever experienced on any airline and this is the first time I've flown on frontier so this was an extremely pleasant surprise!

A lady asked to stop the flight after the tunnel pulled away and we began to depart a flight that was already hours late. The attendance respectfully stopped the the plane and had the tunnel return. After the tunnel returned the passenger claimed to have changed her mind . The tunnel was then put in reverse and the passenger remained on the plane .. They should have sent the sick passenger off the plane like initially replaced. They existed a couple off the plane prior to that situation.. So.. all and all.. it was a long and flight.. .

We understand and comply with Frontier’s bag sizes. We’ve had some problems in past while having to await other passengers who do not understand the baggage restrictions or have not prepaid and that is usually our biggest concern (others delaying us) with flying Frontier. Flying OUT of ONT, however, has always been a great experience. I’ve also noted even on delayed Frontier flights very knowledgeable pilots who manage expectations well.

Long lines, rude staff, everything that's offered you have to pay for.

The last time I flew Frontier was in the 1960s when it was a “real” airline. We flew this time because of the price & schedule. As the saying goes, you get what you pay for.

I appreciated the upgrade to free cary-on bag and seat selection at no charge

Flight was delayed on the runway for 40 minutes the crew did not even offer even water to passengers to compensate for the flight delayed. The flight was delayed due to aircraft mechanical issues. Worst customer service ever

This isna terribly run airlines. If you're one minute late, they will deny your ticket. Don't waste your time or money

Flight was delayed for more than 3 hours, crew at ONT airport was rude, and when we got to DFW the airplane had an issue landing, we had to be taxied to the terminal, and the luggage was hold until the next day.

Everything you need to know for your flight from Ontario to Grand Rapids

Information on your arrival and departure airports