$247+ Cheap flights from Rapid City to Ontario (RAP - 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 6/28. Fares are subject to change and may not be available on all flights or dates of travel.
RAP — ONT
Jun 13 — Jun 201
Round-trip
1 adult, Economy
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Find cheap flights from Rapid City 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 Rapid City to Ontario
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Cheapest flights from Rapid City to OntarioExplore the most affordable flight options available from Rapid City to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 14, 2026.
Explore the most affordable flight options available from Rapid City to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 14, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/11. 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 6/289:54 pm
RAP
- ONT
1 stop18h 14m
Multiple Airlines
Wed 7/153:40 pm
ONT
- RAP
1 stop28h 20m
Multiple Airlines
Deal found 5/11![Multiple Airlines logo]()
$247
This Kiwi.com deal was found by Cheapflights users on 5/10. 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.
Thu 6/259:54 pm
RAP
- ONT
1 stop18h 14m
Multiple Airlines
Wed 7/83:40 pm
ONT
- RAP
1 stop28h 20m
Multiple Airlines
Deal found 5/10![Multiple Airlines logo]()
$252
This Kiwi.com deal was found by Cheapflights users on 5/12. 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 6/219:54 pm
RAP
- ONT
1 stop18h 14m
Multiple Airlines
Wed 7/83:40 pm
ONT
- RAP
1 stop28h 20m
Multiple Airlines
Deal found 5/12![Multiple Airlines logo]()
$258
This Kiwi.com deal was found by Cheapflights users on 5/10. 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.
Thu 7/99:50 pm
RAP
- ONT
1 stop18h 17m
Multiple Airlines
Wed 7/223:40 pm
ONT
- RAP
1 stop28h 20m
Multiple Airlines
Deal found 5/10![Multiple Airlines logo]()
$272
This Kiwi.com deal was found by Cheapflights users on 5/11. 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 6/289:54 pm
RAP
- ONT
1 stop22h 57m
Multiple Airlines
Thu 7/1611:43 am
ONT
- RAP
1 stop8h 17m
Multiple Airlines
Deal found 5/11![Multiple Airlines logo]()
$305
This Kiwi.com deal was found by Cheapflights users on 5/11. 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.
Thu 7/29:50 pm
RAP
- ONT
1 stop18h 18m
Multiple Airlines
Wed 7/153:40 pm
ONT
- RAP
1 stop28h 20m
Multiple Airlines
Deal found 5/11![Multiple Airlines logo]()
$306
This Kiwi.com deal was found by Cheapflights users on 5/10. 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.
Thu 6/259:54 pm
RAP
- ONT
1 stop22h 57m
Multiple Airlines
Sun 7/511:43 am
ONT
- RAP
1 stop8h 17m
Multiple Airlines
Deal found 5/10![Multiple Airlines logo]()
$307
Best flights from Rapid City to OntarioDiscover carefully curated flight deals from Rapid City to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 14, 2026.
Discover carefully curated flight deals from Rapid City to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 14, 2026.
This American Airlines deal was found by Cheapflights users on 5/12. 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.
Wed 6/1711:44 am
RAP
- ONT
1 stop7h 37m
American Airlines
Sat 6/206:10 am
ONT
- RAP
1 stop5h 01m
American Airlines
Deal found 5/12![American Airlines logo]()
$340
This United Airlines deal was found by Cheapflights users on 5/10. 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 8/197:00 am
RAP
- ONT
1 stop6h 50m
United Airlines
Sat 8/225:00 am
ONT
- RAP
1 stop6h 24m
United Airlines
Deal found 5/10![United Airlines logo]()
$409
This Delta deal was found by Cheapflights users on 5/13. 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 5/276:50 am
RAP
- ONT
2 stops10h 27m
Delta
Sat 5/301:29 pm
ONT
- RAP
2 stops7h 55m
Delta
Deal found 5/13![Delta logo]()
$415
This Delta deal was found by Cheapflights users on 5/13. 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 9/186:20 am
RAP
- ONT
2 stops10h 54m
Delta
Sun 9/205:55 pm
ONT
- RAP
2 stops15h 03m
Delta
Deal found 5/13![Delta logo]()
$424
This United Airlines deal was found by Cheapflights users on 5/12. 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 6/267:00 am
RAP
- ONT
1 stop6h 47m
United Airlines
Tue 7/75:00 am
ONT
- RAP
1 stop6h 29m
United Airlines
Deal found 5/12![United Airlines logo]()
$455
This United Airlines deal was found by Cheapflights users on 5/13. 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 9/187:00 am
RAP
- ONT
1 stop6h 38m
United Airlines
Sun 9/205:00 am
ONT
- RAP
1 stop5h 55m
United Airlines
Deal found 5/13![United Airlines logo]()
$458
This United Airlines deal was found by Cheapflights users on 5/10. 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 7/117:00 am
RAP
- ONT
1 stop6h 47m
United Airlines
Sat 7/255:00 am
ONT
- RAP
1 stop6h 29m
United Airlines
Deal found 5/10![United Airlines logo]()
$461
This United Airlines deal was found by Cheapflights users on 5/10. 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 7/117:00 am
RAP
- ONT
1 stop6h 47m
United Airlines
Tue 7/215:00 am
ONT
- RAP
1 stop6h 29m
United Airlines
Deal found 5/10![United Airlines logo]()
$461
Last-minute flights from Rapid City to OntarioDiscover last-minute flight deals from Rapid City to Ontario. Data last updated May 14, 2026 and is based on user searches.
Discover last-minute flight deals from Rapid City to Ontario. Data last updated May 14, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 5/12. 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 6/219:54 pm
RAP
- ONT
1 stop18h 14m
Multiple Airlines
Wed 7/83:40 pm
ONT
- RAP
1 stop28h 20m
Multiple Airlines
Deal found 5/12![Multiple Airlines logo]()
$258
This Kiwi.com deal was found by Cheapflights users on 5/10. 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 6/219:54 pm
RAP
- ONT
1 stop18h 14m
Multiple Airlines
Sun 7/511:43 am
ONT
- RAP
1 stop8h 17m
Multiple Airlines
Deal found 5/10![Multiple Airlines logo]()
$318
This Kiwi.com deal was found by Cheapflights users on 5/10. 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.
Thu 6/259:54 pm
RAP
- ONT
1 stop18h 14m
Multiple Airlines
Wed 7/83:40 pm
ONT
- RAP
1 stop28h 20m
Multiple Airlines
Deal found 5/10![Multiple Airlines logo]()
$252
This Kiwi.com deal was found by Cheapflights users on 5/10. 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.
Thu 6/259:54 pm
RAP
- ONT
1 stop22h 57m
Multiple Airlines
Sun 7/511:43 am
ONT
- RAP
1 stop8h 17m
Multiple Airlines
Deal found 5/10![Multiple Airlines logo]()
$307
This Kiwi.com deal was found by Cheapflights users on 5/11. 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 6/289:54 pm
RAP
- ONT
1 stop18h 14m
Multiple Airlines
Wed 7/153:40 pm
ONT
- RAP
1 stop28h 20m
Multiple Airlines
Deal found 5/11![Multiple Airlines logo]()
$247
This Kiwi.com deal was found by Cheapflights users on 5/11. 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 6/289:54 pm
RAP
- ONT
1 stop22h 57m
Multiple Airlines
Thu 7/1611:43 am
ONT
- RAP
1 stop8h 17m
Multiple Airlines
Deal found 5/11![Multiple Airlines logo]()
$305
One-way flights from Rapid City to OntarioSearch for one-way flight options from Rapid City to Ontario. Find affordable one-way fares based on user searches. Data last updated May 14, 2026.
Search for one-way flight options from Rapid City to Ontario. Find affordable one-way fares based on user searches. Data last updated May 14, 2026.
This United Airlines deal was found by Cheapflights users on 5/13. 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 6/187:05 am
RAP
- ONT
1 stop6h 35m
United Airlines
Deal found 5/13![United Airlines logo]()
$257
This United Airlines deal was found by Cheapflights users on 5/13. 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 6/27:05 am
RAP
- ONT
1 stop6h 39m
United Airlines
Deal found 5/13![United Airlines logo]()
$270
This Delta deal was found by Cheapflights users on 5/13. 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.
Tue 6/1611:07 am
RAP
- ONT
2 stops12h 34m
Delta
Deal found 5/13![Delta logo]()
$275
This United Airlines deal was found by Cheapflights users on 5/13. 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 6/167:05 am
RAP
- ONT
1 stop6h 42m
United Airlines
Deal found 5/13![United Airlines logo]()
$281
This United Airlines deal was found by Cheapflights users on 5/13. 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 6/1511:20 am
RAP
- ONT
1 stop7h 08m
United Airlines
Deal found 5/13![United Airlines logo]()
$305
This United Airlines deal was found by Cheapflights users on 5/12. 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 10/277:05 am
RAP
- ONT
1 stop6h 28m
United Airlines
Deal found 5/12![United Airlines logo]()
$346
This Delta deal was found by Cheapflights users on 5/13. 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 6/154:29 pm
RAP
- ONT
2 stops8h 20m
Delta
Deal found 5/13![Delta logo]()
$349
This Delta deal was found by Cheapflights users on 5/13. 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.
Tue 6/22:36 pm
RAP
- ONT
2 stops9h 58m
Delta
Deal found 5/13![Delta logo]()
$351
Find flight deals from Rapid City to Ontario
Discover tips and strategies to find the most affordable flight options for your journey from Rapid City (RAP) 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 May 14, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $247 (Kiwi.com) |
Popular in | March |
Cheapest in | January |
Average price | $339 |
Cheapflights Fare Finder
Customize your flight search to find flights from Rapid City 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 2,558,603 searches. Data last updated May 14, 2026.
Use the filters below to find and compare flights from Rapid City to Ontario that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Rapid CityOntario
RAP - ONT
RAPONT
Rapid City
Wed 6/17
11:44 am-6:21 pm
1 stop7h 37m
Ontario
Sat 6/20
6:10 am-12:11 pm
1 stop5h 01m
$340
Rapid CityOntario
RAP - ONT
RAPONT
Rapid City
Wed 8/19
7:00 am-12:50 pm
1 stop6h 50m
Ontario
Sat 8/22
5:00 am-12:24 pm
1 stop6h 24m
$409
Rapid CityOntario
RAP - ONT
RAPONT
Rapid City
Wed 5/27
6:50 am-4:17 pm
2 stops10h 27m
Ontario
Sat 5/30
1:29 pm-10:24 pm
2 stops7h 55m
$415
Rapid CityOntario
RAP - ONT
RAPONT
Rapid City
Fri 9/18
6:20 am-4:14 pm
2 stops10h 54m
Ontario
Sun 9/20
5:55 pm-9:58 am
2 stops15h 03m
$424
Rapid CityOntario
RAP - ONT
RAPONT
Rapid City
Fri 6/26
7:00 am-12:47 pm
1 stop6h 47m
Ontario
Tue 7/7
5:00 am-12:29 pm
1 stop6h 29m
$455
Quickest round-trip
Rapid CityOntario
RAP - ONT
RAPONT
Rapid City
Fri 9/18
7:00 am-12:38 pm
1 stop6h 38m
Ontario
Sun 9/20
5:00 am-11:55 am
1 stop5h 55m
$458
Rapid CityOntario
RAP - ONT
RAPONT
Rapid City
Sat 7/11
7:00 am-12:47 pm
1 stop6h 47m
Ontario
Sat 7/25
5:00 am-12:29 pm
1 stop6h 29m
$461
Rapid CityOntario
RAP - ONT
RAPONT
Rapid City
Sat 7/11
7:00 am-12:47 pm
1 stop6h 47m
Ontario
Tue 7/21
5:00 am-12:29 pm
1 stop6h 29m
$461
Cheapest one-way
Rapid CityOntario
RAP - ONT
RAPONT
Rapid City
Tue 6/2
7:05 am-12:44 pm
1 stop6h 39m
$270
Rapid CityOntario
RAP - ONT
RAPONT
Rapid City
Tue 6/16
5:00 am-12:12 pm
2 stops8h 12m
$286
Showing 1-10 of 15 resultsSorted by cheapest first
Compare providers for flights from Rapid City 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 Rapid City to Ontario in May.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Rapid City-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Rapid City-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Rapid City-Ontario flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Rapid City-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 Rapid City-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 Rapid City to Ontario
Have a flexible travel schedule? Discover the best time to fly to Ontario from Rapid City with our price prediction graph.
RAP-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.
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 May 14, 2026.
Read reviews from past customers who have flown United Airlines from Rapid City 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.
Entertainment
7.1
Crew
8.1
Boarding
7.7
Food
6.6
Comfort
7.3
Overall
7.4
Reviews
1 / 20
10.0
ExcellentAnonymous,Sep 2025
FRA - SFO
Entertainment
7.1
Crew
8.1
Boarding
7.7
Food
6.6
Comfort
7.3
Overall
7.4
Reviews
1 / 20
10.0
ExcellentAnonymous,Sep 2025
FRA - SFO
Related info for your journey
Find useful and relevant information for your journey from Rapid City 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 Rapid City to Ontario
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Complete your trip
Complete your trip to Ontario by adding a car rental and/or hotel reservation to your travel itinerary.
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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 May 14, 2026.
Rapid City and Ontario flights
Browse other Rapid City and Ontario flight options. Last updated on May 14, 2026.
Other flights from Rapid City
Browse through other flights departing from Rapid City. Flights are based on user searches made on Cheapflights and were last updated on May 14, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top airline flying from Rapid City to Ontario
Discover the top airline that operate flights from Rapid City 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 2,558,603 searches. Data last updated May 14, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$236 | Average$415 | FlexibilityNo cancel fee | On-time69% |