$125+ Cheap flights from Grand Rapids to Ontario (GRR - ONT)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/29. Fares are subject to change and may not be available on all flights or dates of travel.
GRR — ONT
Oct 8 — Oct 151
Round-trip
1 adult, Economy
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Find cheap flights from Grand Rapids to Ontario with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Grand Rapids to Ontario
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Best
Last-minute
One-way
Cheapest flights from Grand Rapids to OntarioExplore the most affordable flight options available from Grand Rapids to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 8, 2026.
Explore the most affordable flight options available from Grand Rapids to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 8, 2026.
This Frontier deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/264:24 pm -
1 stop10h 23m
Tue 10/66:15 am -
1 stop6h 11m
Deal found 9/3![Frontier logo]()
$238
This CheapOair deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/14:24 pm -
1 stop21h 06m
Tue 10/66:15 am -
1 stop6h 11m
Deal found 9/3![Frontier logo]()
$248
This Frontier deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/264:24 pm -
1 stop10h 23m
Sat 10/36:15 am -
1 stop6h 11m
Deal found 9/3![Frontier logo]()
$282
This Frontier deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/264:24 pm -
1 stop10h 23m
Sun 10/46:15 am -
1 stop6h 11m
Deal found 9/3![Frontier logo]()
$288
This Frontier deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/224:24 pm -
1 stop10h 23m
Tue 10/66:15 am -
1 stop6h 11m
Deal found 9/3![Frontier logo]()
$309
This Frontier deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/124:11 pm -
1 stop10h 40m
Sun 11/156:25 am -
1 stop5h 51m
Deal found 9/3![Frontier logo]()
$310
This Frontier deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/244:24 pm -
1 stop10h 23m
Tue 10/66:15 am -
1 stop6h 11m
Deal found 9/3![Frontier logo]()
$319
This Expedia deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/224:11 pm -
1 stop21h 18m
Sun 10/256:15 am -
1 stop6h 01m
Deal found 9/4![Frontier logo]()
$332
This Kiwi.com deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/244:11 pm -
1 stop10h 39m
Sat 11/1411:52 am -
1 stop24h 24m
Deal found 9/4![Frontier logo]()
$337
This Delta deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/316:10 am -
1 stop7h 56m
Tue 11/36:00 pm -
2 stops13h 00m
Deal found 9/3![Delta logo]()
$342
Best flights from Grand Rapids to OntarioDiscover carefully curated flight deals from Grand Rapids to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 8, 2026.
Discover carefully curated flight deals from Grand Rapids to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 8, 2026.
This United Airlines deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/23:45 pm -
1 stop7h 35m
Sun 2/71:00 pm -
1 stop6h 29m
Deal found 9/7![United Airlines logo]()
$537
This Delta deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/3111:33 am -
2 stops14h 10m
Sat 11/76:00 pm -
2 stops13h 00m
Deal found 9/4![Delta logo]()
$655
This United Airlines deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/318:00 am -
1 stop7h 33m
Wed 11/41:29 pm -
1 stop5h 51m
Deal found 9/6![United Airlines logo]()
$545
This United Airlines deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/103:39 pm -
1 stop7h 41m
Mon 12/141:40 pm -
1 stop5h 39m
Deal found 9/7![United Airlines logo]()
$545
This United Airlines deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/17:42 am -
1 stop7h 51m
Sat 11/76:00 am -
2 stops13h 04m
Deal found 9/5![United Airlines logo]()
$576
This United Airlines deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/308:00 am -
1 stop7h 46m
Thu 10/15:00 am -
1 stop6h 47m
Deal found 9/7![United Airlines logo]()
$595
This United Airlines deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/148:00 am -
1 stop7h 33m
Sat 11/211:29 pm -
1 stop5h 51m
Deal found 9/5![United Airlines logo]()
$607
This United Airlines deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/53:54 pm -
1 stop8h 04m
Sun 10/115:00 am -
1 stop6h 47m
Deal found 9/3![United Airlines logo]()
$634
This United Airlines deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/123:45 pm -
1 stop7h 35m
Sat 2/206:30 am -
1 stop6h 33m
Deal found 9/5![United Airlines logo]()
$662
This United Airlines deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/186:10 pm -
1 stop7h 49m
Tue 9/221:18 pm -
1 stop6h 21m
Deal found 9/3![United Airlines logo]()
$697
Last-minute flights from Grand Rapids to OntarioDiscover last-minute flight deals from Grand Rapids to Ontario. Data last updated September 8, 2026 and is based on user searches.
Discover last-minute flight deals from Grand Rapids to Ontario. Data last updated September 8, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/224:24 pm -
1 stop10h 23m
Tue 10/66:15 am -
1 stop6h 11m
Deal found 9/3![Frontier logo]()
$309
This Frontier deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/244:24 pm -
1 stop10h 23m
Tue 10/66:15 am -
1 stop6h 11m
Deal found 9/3![Frontier logo]()
$319
This Frontier deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/264:24 pm -
1 stop10h 23m
Tue 10/66:15 am -
1 stop6h 11m
Deal found 9/3![Frontier logo]()
$238
This Frontier deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/264:24 pm -
1 stop10h 23m
Sat 10/36:15 am -
1 stop6h 11m
Deal found 9/3![Frontier logo]()
$282
This Frontier deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/264:24 pm -
1 stop10h 23m
Sun 10/46:15 am -
1 stop6h 11m
Deal found 9/3![Frontier logo]()
$288
This Frontier deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/274:24 pm -
1 stop10h 23m
Tue 10/66:15 am -
1 stop6h 11m
Deal found 9/3![Frontier logo]()
$344
This CheapOair deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/14:24 pm -
1 stop21h 06m
Tue 10/66:15 am -
1 stop6h 11m
Deal found 9/3![Frontier logo]()
$248
This Expedia deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/224:11 pm -
1 stop21h 18m
Sun 10/256:15 am -
1 stop6h 01m
Deal found 9/4![Frontier logo]()
$332
This Kiwi.com deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/244:11 pm -
1 stop10h 39m
Sat 11/1411:52 am -
1 stop24h 24m
Deal found 9/4![Frontier logo]()
$337
This Delta deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/316:10 am -
1 stop7h 56m
Tue 11/36:00 pm -
2 stops13h 00m
Deal found 9/3![Delta logo]()
$342
One-way flights from Grand Rapids to OntarioSearch for one-way flight options from Grand Rapids to Ontario. Find affordable one-way fares based on user searches. Data last updated September 8, 2026.
Search for one-way flight options from Grand Rapids to Ontario. Find affordable one-way fares based on user searches. Data last updated September 8, 2026.
This Frontier deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/294:24 pm -
1 stop10h 23m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Frontier logo]()
$125
This CheapOair deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/211:59 am -
1 stop14h 48m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Frontier logo]()
$146
This Frontier deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/14:24 pm -
1 stop10h 23m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Frontier logo]()
$170
This Southwest deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/167:05 am -
2 stops10h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Southwest logo]()
$174
This Frontier deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/84:11 pm -
1 stop10h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Frontier logo]()
$175
This Kiwi.com deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/237:00 am -
1 stop10h 51m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Multiple Airlines logo]()
$192
This Super.com deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/44:24 pm -
1 stop10h 23m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Frontier logo]()
$193
This Frontier deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/154:24 pm -
1 stop10h 23m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Frontier logo]()
$196
This CheapOair deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1411:59 am -
1 stop14h 48m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Frontier logo]()
$201
This Frontier deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/244:24 pm -
1 stop10h 23m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Frontier logo]()
$204
This Frontier deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/174:24 pm -
1 stop10h 23m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Frontier logo]()
$206
This Kiwi.com deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/229:00 am -
1 stop25h 07m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Multiple Airlines logo]()
$209
Find flight deals from Grand Rapids to Ontario
Discover tips and strategies to find the most affordable flight options for your journey from Grand Rapids (GRR) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 8, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $238 (Frontier) |
One-way from | $125 (Frontier) |
Popular in | December |
Cheapest in | February |
Average price | $463 |
Cheapflights Fare Finder
Customize your flight search to find flights from Grand Rapids to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 8, 2026.
Use the filters below to find and compare flights from Grand Rapids to Ontario that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Grand RapidsOntario
GRR Grand Rapids Gerald R. Ford Intl - ONT Ontario
GRRONT
Grand Rapids Gerald R. Ford Intl
Sun 10/4
4:24 pm-11:47 pm
1 stop10h 23m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$175
Grand RapidsOntario
GRR Grand Rapids Gerald R. Ford Intl - ONT Ontario
GRRONT
Grand Rapids Gerald R. Ford Intl
Mon 11/16
4:30 pm-8:35 pm
1 stop7h 05m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$210
Quickest round-trip
Grand RapidsOntario
GRR Grand Rapids Gerald R. Ford Intl - ONT Ontario
GRRONT
Grand Rapids Gerald R. Ford Intl
Fri 11/20
3:10 pm-6:30 pm
1 stop6h 20m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$239
Grand RapidsOntario
GRR Grand Rapids Gerald R. Ford Intl - ONT Ontario
GRRONT
Grand Rapids Gerald R. Ford Intl
Sun 11/22
1:25 pm-9:55 pm
2 stops11h 30m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$244
Grand RapidsOntario
GRR Grand Rapids Gerald R. Ford Intl - ONT Ontario
GRRONT
Grand Rapids Gerald R. Ford Intl
Mon 11/23
6:00 am-11:08 am
1 stop8h 08m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$249
Grand RapidsOntario
GRR Grand Rapids Gerald R. Ford Intl - ONT Ontario
GRRONT
Grand Rapids Gerald R. Ford Intl
Sun 11/22
6:00 am-11:08 am
1 stop8h 08m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$249
Grand RapidsOntario
GRR Grand Rapids Gerald R. Ford Intl - ONT Ontario
GRRONT
Grand Rapids Gerald R. Ford Intl
Fri 11/27
6:00 am-11:08 am
1 stop8h 08m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$249
Grand RapidsOntario
GRR Grand Rapids Gerald R. Ford Intl - ONT Ontario
GRRONT
Grand Rapids Gerald R. Ford Intl
Fri 10/2
10:01 am-9:59 pm
2 stops14h 58m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$267
Grand RapidsOntario
GRR Grand Rapids Gerald R. Ford Intl - ONT Ontario
GRRONT
Grand Rapids Gerald R. Ford Intl
Tue 1/19
3:45 pm-8:20 pm
1 stop7h 35m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$273
Grand RapidsOntario
GRR Grand Rapids Gerald R. Ford Intl - ONT Ontario
GRRONT
Grand Rapids Gerald R. Ford Intl
Mon 11/23
8:40 am-8:15 pm
2 stops14h 35m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$278
Showing 1-10 of 21 resultsSorted by cheapest first
Compare providers for flights from Grand Rapids to Ontario
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Grand Rapids to Ontario in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
- Most accurate provider: When it comes to deals on Grand Rapids-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Grand Rapids-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Grand Rapids-Ontario flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Grand Rapids-Ontario flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Grand Rapids-Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Grand Rapids to Ontario
Have a flexible travel schedule? Discover the best time to fly to Ontario from Grand Rapids with our price prediction graph.
GRR-ONT
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Grand Rapids to Ontario
What is the cheapest month to book a flight from Grand Rapids to Ontario?
Currently, February is the cheapest month in which you can book a flight from Grand Rapids to Ontario (average of $358). Flying from Grand Rapids to Ontario in December is currently the most expensive (average of $553). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How much does it cost to fly round-trip from Grand Rapids to Ontario?
Airfare is below average for this route at the moment.
Grand Rapids to Ontario flights typically cost between $378 and $539 in September.The cheapest round-trip price found within the last 5 days was $238 on Frontier (Sep 26-Oct 6).
Reviews of airlines servicing Ontario
Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated September 8, 2026.
Read reviews from past customers who have flown Southwest,Delta, andUnited Airlines from Grand Rapids to Ontario. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.6
Overall
8.0
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Food
7.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Crew
8.6
Overall
8.0
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Food
7.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Crew
8.6
Overall
8.0
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Food
7.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Crew
8.6
Overall
8.0
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Food
7.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Crew
8.6
Overall
8.0
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Food
7.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Crew
8.6
Overall
8.0
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Food
7.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Related info for your journey
Find useful and relevant information for your journey from Grand Rapids to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Top 5 airlines flying from Grand Rapids to Ontario
Discover the top 5 airlines that operate flights from Grand Rapids to Ontario. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 8, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$117 | Average$312 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$277 | Average$546 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$303 | Average$490 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$346 | Average$459 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$364 | Average$492 | FlexibilityNo cancel fee | On-time63% |