$146+ 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 10/13. Fares are subject to change and may not be available on all flights or dates of travel.
GRR — ONT
Oct 21 — Oct 281
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
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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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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 21, 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 21, 2026.
This Frontier deal was found by Cheapflights users on 9/17. 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 10/204:11 pm -
1 stop10h 39m
Sat 10/246:15 am -
1 stop6h 01m
Deal found 9/17![Frontier logo]()
$246
This Frontier deal was found by Cheapflights users on 9/17. 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
Thu 11/265:01 am -
1 stop7h 14m
Deal found 9/17![Frontier logo]()
$250
This Expedia deal was found by Cheapflights users on 9/19. 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
Sat 10/246:15 am -
1 stop6h 01m
Deal found 9/19![Frontier logo]()
$271
This Frontier deal was found by Cheapflights users on 9/19. 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 10/134:11 pm -
1 stop10h 39m
Tue 10/206:15 am -
1 stop6h 01m
Deal found 9/19![Frontier logo]()
$280
This CheapOair deal was found by Cheapflights users on 9/18. 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 10/224:11 pm -
1 stop10h 39m
Wed 10/2811:52 am -
1 stop24h 24m
Deal found 9/18![Frontier logo]()
$290
This Frontier deal was found by Cheapflights users on 9/17. 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 11/225:01 am -
1 stop7h 14m
Deal found 9/17![Frontier logo]()
$294
This Super.com deal was found by Cheapflights users on 9/19. 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.
Thu 10/224:11 pm -
1 stop10h 39m
Fri 10/2311:52 am -
1 stop24h 24m
Deal found 9/19![Frontier logo]()
$297
This Trip.com deal was found by Cheapflights users on 9/21. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/294:11 pm -
1 stop21h 31m
Sat 10/3111:52 am -
1 stop25h 24m
Deal found 9/21![Frontier logo]()
$299
This Frontier deal was found by Cheapflights users on 9/17. 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
Tue 11/245:01 am -
1 stop7h 14m
Deal found 9/17![Frontier logo]()
$304
This Frontier deal was found by Cheapflights users on 9/20. 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 10/224:11 pm -
1 stop10h 39m
Sun 10/256:15 am -
1 stop6h 01m
Deal found 9/20![Frontier logo]()
$309
This Frontier deal was found by Cheapflights users on 9/16. 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 9/16![Frontier logo]()
$326
This Frontier deal was found by Cheapflights users on 9/18. 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 12/67:32 pm -
1 stop7h 48m
Sun 12/136:00 am -
1 stop9h 47m
Deal found 9/18![Frontier logo]()
$338
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 21, 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 21, 2026.
This Delta deal was found by Cheapflights users on 9/18. 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.
Fri 10/235:57 pm -
2 stops8h 58m
Wed 10/286:00 pm -
2 stops13h 53m
Deal found 9/18![Delta logo]()
$404
This CheapOair deal was found by Cheapflights users on 9/16. 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 10/84:11 pm -
1 stop21h 18m
Sun 10/116:15 am -
1 stop6h 01m
Deal found 9/16![Frontier logo]()
$409
This Southwest deal was found by Cheapflights users on 9/18. 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.
Fri 10/235:35 pm -
2 stops9h 15m
Tue 10/279:00 pm -
2 stops12h 00m
Deal found 9/18![Southwest logo]()
$410
This United Airlines deal was found by Cheapflights users on 9/16. 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 11/53:42 pm -
1 stop8h 09m
Tue 11/105:00 am -
1 stop6h 36m
Deal found 9/16![United Airlines logo]()
$476
This Delta deal was found by Cheapflights users on 9/20. 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.
Mon 12/215:21 pm -
1 stop9h 20m
Thu 12/247:06 am -
2 stops13h 16m
Deal found 9/20![Delta logo]()
$453
This United Airlines deal was found by Cheapflights users on 9/16. 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 1/273:45 pm -
1 stop7h 35m
Sun 1/316:53 pm -
2 stops11h 43m
Deal found 9/16![United Airlines logo]()
$496
This Delta deal was found by Cheapflights users on 9/18. 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.
Fri 1/156:00 am -
1 stop8h 27m
Wed 1/2012:00 pm -
1 stop8h 08m
Deal found 9/18![Delta logo]()
$529
This United Airlines deal was found by Cheapflights users on 9/17. 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 10/233:45 pm -
2 stops10h 06m
Sun 10/255:00 am -
1 stop6h 36m
Deal found 9/17![United Airlines logo]()
$539
This United Airlines deal was found by Cheapflights users on 9/19. 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 3/22:10 pm -
1 stop7h 29m
Thu 3/111:00 pm -
1 stop6h 29m
Deal found 9/19![United Airlines logo]()
$548
This United Airlines deal was found by Cheapflights users on 9/17. 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 12/129:00 am -
1 stop6h 34m
Sun 12/205:00 am -
1 stop6h 37m
Deal found 9/17![United Airlines logo]()
$549
Last-minute flights from Grand Rapids to OntarioDiscover last-minute flight deals from Grand Rapids to Ontario. Data last updated September 21, 2026 and is based on user searches.
Discover last-minute flight deals from Grand Rapids to Ontario. Data last updated September 21, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 9/17. 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
Tue 10/66:15 am -
1 stop6h 11m
Deal found 9/17![Frontier logo]()
$372
This Frontier deal was found by Cheapflights users on 9/16. 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 10/114:11 pm -
1 stop10h 39m
Tue 10/136:15 am -
1 stop6h 01m
Deal found 9/16![Frontier logo]()
$358
This Frontier deal was found by Cheapflights users on 9/16. 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 10/134:11 pm -
1 stop10h 39m
Tue 10/206:15 am -
1 stop6h 01m
Deal found 9/16![Frontier logo]()
$266
This CheapOair deal was found by Cheapflights users on 9/17. 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 10/154:11 pm -
1 stop10h 39m
Mon 10/1911:52 am -
1 stop24h 24m
Deal found 9/17![Frontier logo]()
$377
This Frontier deal was found by Cheapflights users on 9/17. 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 10/204:11 pm -
1 stop10h 39m
Sat 10/246:15 am -
1 stop6h 01m
Deal found 9/17![Frontier logo]()
$246
This Kiwi.com deal was found by Cheapflights users on 9/18. 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.
Wed 10/214:03 pm -
1 stop22h 13m
Tue 10/275:07 pm -
1 stop19h 06m
Deal found 9/18![Multiple Airlines logo]()
$373
This Expedia deal was found by Cheapflights users on 9/19. 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
Sat 10/246:15 am -
1 stop6h 01m
Deal found 9/19![Frontier logo]()
$271
This CheapOair deal was found by Cheapflights users on 9/18. 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 10/224:11 pm -
1 stop10h 39m
Wed 10/2811:52 am -
1 stop24h 24m
Deal found 9/18![Frontier logo]()
$290
This Super.com deal was found by Cheapflights users on 9/19. 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.
Thu 10/224:11 pm -
1 stop10h 39m
Fri 10/2311:52 am -
1 stop24h 24m
Deal found 9/19![Frontier logo]()
$297
This Frontier deal was found by Cheapflights users on 9/20. 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 10/224:11 pm -
1 stop10h 39m
Sun 10/256:15 am -
1 stop6h 01m
Deal found 9/20![Frontier logo]()
$309
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 21, 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 21, 2026.
This Expedia deal was found by Cheapflights users on 9/19. 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.
Tue 10/134:11 pm -
1 stop21h 18m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![Frontier logo]()
$146
This Frontier deal was found by Cheapflights users on 9/20. 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 12/313:50 pm -
1 stop11h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![Frontier logo]()
$168
This Delta deal was found by Cheapflights users on 9/16. 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.
Wed 1/66:00 am -
1 stop8h 27m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Delta logo]()
$175
This Priceline deal was found by Cheapflights users on 9/20. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/34:24 pm -
1 stop10h 23m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![Frontier logo]()
$181
This Super.com deal was found by Cheapflights users on 9/19. 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.
Thu 12/243:50 pm -
1 stop11h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![Frontier logo]()
$194
This Delta deal was found by Cheapflights users on 9/16. 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.
Mon 12/215:21 pm -
1 stop9h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Delta logo]()
$196
This United Airlines deal was found by Cheapflights users on 9/16. 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 1/93:45 pm -
1 stop7h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![United Airlines logo]()
$203
This United Airlines deal was found by Cheapflights users on 9/17. 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 2/99:31 am -
2 stops13h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![United Airlines logo]()
$208
This American Airlines deal was found by Cheapflights users on 9/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/241:45 pm -
2 stops11h 12m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![American Airlines logo]()
$210
This American Airlines deal was found by Cheapflights users on 9/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/132:55 pm -
1 stop7h 59m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![American Airlines logo]()
$213
This Booking.com deal was found by Cheapflights users on 9/18. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/44:24 pm -
1 stop21h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/18![Frontier logo]()
$215
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 21, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $246 (Frontier) |
One-way from | $146 (Expedia) |
Popular in | April |
Cheapest in | February |
Average price | $428 |
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 21, 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
Wed 1/6
6:00 am-11:27 am
1 stop8h 27m
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
Sat 1/9
3:45 pm-8:20 pm
1 stop7h 35m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$203
Grand RapidsOntario
GRR Grand Rapids Gerald R. Ford Intl - ONT Ontario
GRRONT
Grand Rapids Gerald R. Ford Intl
Tue 11/17
3:42 pm-8:51 pm
1 stop8h 09m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$250
Grand RapidsOntario
GRR Grand Rapids Gerald R. Ford Intl - ONT Ontario
GRRONT
Grand Rapids Gerald R. Ford Intl
Sat 10/31
12:33 pm-9:40 pm
2 stops12h 07m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$255
Grand RapidsOntario
GRR Grand Rapids Gerald R. Ford Intl - ONT Ontario
GRRONT
Grand Rapids Gerald R. Ford Intl
Tue 2/9
3:45 pm-8:20 pm
1 stop7h 35m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$274
Quickest round-trip
Grand RapidsOntario
GRR Grand Rapids Gerald R. Ford Intl - ONT Ontario
GRRONT
Grand Rapids Gerald R. Ford Intl
Fri 1/1
6:25 pm-10:38 pm
1 stop7h 13m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$282
Grand RapidsOntario
GRR Grand Rapids Gerald R. Ford Intl - ONT Ontario
GRRONT
Grand Rapids Gerald R. Ford Intl
Fri 1/8
5:37 am-3:20 pm
2 stops12h 43m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$330
Grand RapidsOntario
GRR Grand Rapids Gerald R. Ford Intl - ONT Ontario
GRRONT
Grand Rapids Gerald R. Ford Intl
Wed 12/23
12:04 pm-11:56 pm
2 stops14h 52m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$340
Grand RapidsOntario
GRR Grand Rapids Gerald R. Ford Intl - ONT Ontario
GRRONT
Grand Rapids Gerald R. Ford Intl
Fri 10/16
2:26 pm-11:42 pm
2 stops12h 16m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$340
Grand RapidsOntario
GRR Grand Rapids Gerald R. Ford Intl - ONT Ontario
GRRONT
Grand Rapids Gerald R. Ford Intl
Sun 10/18
5:00 am-12:18 pm
2 stops10h 18m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$340
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 April is currently the most expensive (average of $667). 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 $362 and $480 in October.The cheapest round-trip price found within the last 5 days was $246 on Frontier (Oct 20-Oct 24).
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 21, 2026.
Read reviews from past customers who have flown Southwest,United Airlines, andAmerican 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.
Food
7.0
Boarding
8.1
Overall
8.0
Comfort
8.0
Entertainment
7.5
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Food
7.0
Boarding
8.1
Overall
8.0
Comfort
8.0
Entertainment
7.5
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Food
7.0
Boarding
8.1
Overall
8.0
Comfort
8.0
Entertainment
7.5
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Food
7.0
Boarding
8.1
Overall
8.0
Comfort
8.0
Entertainment
7.5
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Food
7.0
Boarding
8.1
Overall
8.0
Comfort
8.0
Entertainment
7.5
Crew
8.6
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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Alternative routes for Grand Rapids to Ontario
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Complete your trip
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Other flights to Ontario
Explore flights to Ontario departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 21, 2026.
Grand Rapids and Ontario flights
Browse other Grand Rapids and Ontario flight options. Last updated on September 21, 2026.
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Check out other popular destinations found by fellow travelers in 2026
Top 4 airlines flying from Grand Rapids to Ontario
Discover the top 4 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 21, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$117 | Average$321 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$303 | Average$490 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$346 | Average$459 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$352 | Average$492 | FlexibilityNo cancel fee | On-time63% |