$308+ 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 10/12. Fares are subject to change and may not be available on all flights or dates of travel.
RAP — ONT
Oct 25 — Nov 11
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 September 25, 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 September 25, 2026.
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/227:05 am -
1 stop6h 41m
Sun 10/255:00 am -
1 stop5h 58m
Deal found 9/20![United Airlines logo]()
$379
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/67:05 am -
1 stop6h 41m
Sat 10/101:22 pm -
1 stop6h 30m
Deal found 9/20![United Airlines logo]()
$399
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/295:00 am -
2 stops8h 29m
Sun 11/15:00 am -
1 stop5h 58m
Deal found 9/20![United Airlines logo]()
$417
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/154:41 pm -
1 stop5h 17m
Sun 10/185:00 am -
1 stop6h 26m
Deal found 9/20![United Airlines logo]()
$419
This United Airlines deal was found by Cheapflights users on 9/24. 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 12/54:31 pm -
1 stop5h 40m
Tue 12/85:00 am -
1 stop7h 03m
Deal found 9/24![United Airlines logo]()
$459
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/228:40 am -
1 stop5h 10m
Tue 9/295:00 am -
1 stop5h 55m
Deal found 9/20![United Airlines logo]()
$471
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 September 25, 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 September 25, 2026.
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/67:05 am -
1 stop6h 41m
Sat 10/1011:10 am -
2 stops10h 20m
Deal found 9/20![United Airlines logo]()
$404
This American Airlines deal was found by Cheapflights users on 9/24. 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 11/266:00 am -
2 stops12h 13m
Tue 12/14:25 pm -
2 stops19h 14m
Deal found 9/24![American Airlines logo]()
$707
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/154:41 pm -
1 stop5h 17m
Sun 10/185:00 am -
1 stop6h 26m
Deal found 9/20![United Airlines logo]()
$419
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/54:31 pm -
1 stop5h 40m
Tue 12/85:00 am -
1 stop7h 03m
Deal found 9/20![United Airlines logo]()
$459
This United Airlines deal was found by Cheapflights users on 9/24. 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 11/268:30 am -
1 stop5h 03m
Tue 12/15:00 am -
1 stop7h 03m
Deal found 9/24![United Airlines logo]()
$459
This United Airlines deal was found by Cheapflights users on 9/24. 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 10/247:05 am -
1 stop6h 41m
Thu 10/295:00 am -
1 stop5h 58m
Deal found 9/24![United Airlines logo]()
$459
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/104:41 pm -
1 stop5h 17m
Tue 10/135:00 am -
1 stop5h 55m
Deal found 9/20![United Airlines logo]()
$666
Last-minute flights from Rapid City to OntarioDiscover last-minute flight deals from Rapid City to Ontario. Data last updated September 25, 2026 and is based on user searches.
Discover last-minute flight deals from Rapid City to Ontario. Data last updated September 25, 2026 and is based on user searches.
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/67:05 am -
1 stop6h 41m
Sat 10/101:22 pm -
1 stop6h 30m
Deal found 9/20![United Airlines logo]()
$399
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/154:41 pm -
1 stop5h 17m
Sun 10/185:00 am -
1 stop6h 26m
Deal found 9/20![United Airlines logo]()
$419
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/195:04 pm -
1 stop7h 48m
Mon 10/2611:59 pm -
1 stop8h 55m
Deal found 9/21![American Airlines logo]()
$489
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/195:00 am -
2 stops8h 18m
Mon 10/265:00 am -
1 stop5h 58m
Deal found 9/21![United Airlines logo]()
$497
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/227:05 am -
1 stop6h 41m
Sun 10/255:00 am -
1 stop5h 58m
Deal found 9/20![United Airlines logo]()
$379
This United Airlines deal was found by Cheapflights users on 9/24. 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 10/247:05 am -
1 stop6h 41m
Thu 10/295:00 am -
1 stop5h 58m
Deal found 9/24![United Airlines logo]()
$459
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/295:00 am -
2 stops8h 29m
Sun 11/15:00 am -
1 stop5h 58m
Deal found 9/20![United Airlines logo]()
$417
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 September 25, 2026.
Search for one-way flight options from Rapid City to Ontario. Find affordable one-way fares based on user searches. Data last updated September 25, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/22. 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 10/129:39 pm -
2 stops19h 51m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![Multiple Airlines logo]()
$308
This United Airlines deal was found by Cheapflights users on 9/24. 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 10/198:45 am -
1 stop5h 01m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![United Airlines logo]()
$360
This United Airlines deal was found by Cheapflights users on 9/22. 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 9/304:41 pm -
1 stop5h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![United Airlines logo]()
$386
This United Airlines deal was found by Cheapflights users on 9/22. 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 10/88:45 am -
1 stop5h 01m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![United Airlines logo]()
$394
This United Airlines deal was found by Cheapflights users on 9/22. 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 10/124:41 pm -
1 stop5h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![United Airlines logo]()
$480
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 September 25, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $379 (United Airlines) |
One-way from | $308 (Kiwi.com) |
Popular in | March |
Cheapest in | January |
Average price | $378 |
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 7,457,451 searches. Data last updated September 25, 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 Rapid City - ONT Ontario
RAPONT
Rapid City
Mon 10/12
9:39 pm-4:30 pm
2 stops19h 51m
Ontario
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$308
Rapid CityOntario
RAP Rapid City - ONT Ontario
RAPONT
Rapid City
Mon 11/23
7:00 am-12:33 pm
1 stop6h 33m
Ontario
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$360
Quickest round-trip
Rapid CityOntario
RAP Rapid City - ONT Ontario
RAPONT
Rapid City
Mon 10/19
8:45 am-12:46 pm
1 stop5h 01m
Ontario
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$360
Rapid CityOntario
RAP Rapid City - ONT Ontario
RAPONT
Rapid City
Wed 9/30
4:41 pm-8:58 pm
1 stop5h 17m
Ontario
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$386
Rapid CityOntario
RAP Rapid City - ONT Ontario
RAPONT
Rapid City
Thu 10/8
8:45 am-12:46 pm
1 stop5h 01m
Ontario
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$394
Rapid CityOntario
RAP Rapid City - ONT Ontario
RAPONT
Rapid City
Tue 10/6
7:05 am-12:46 pm
1 stop6h 41m
Ontario
Sat 10/10
11:10 am-10:30 pm
2 stops10h 20m
$404
Rapid CityOntario
RAP Rapid City - ONT Ontario
RAPONT
Rapid City
Thu 10/15
4:41 pm-8:58 pm
1 stop5h 17m
Ontario
Sun 10/18
5:00 am-12:26 pm
1 stop6h 26m
$419
Rapid CityOntario
RAP Rapid City - ONT Ontario
RAPONT
Rapid City
Sat 12/5
4:31 pm-9:11 pm
1 stop5h 40m
Ontario
Tue 12/8
5:00 am-1:03 pm
1 stop7h 03m
$459
Rapid CityOntario
RAP Rapid City - ONT Ontario
RAPONT
Rapid City
Thu 11/26
8:30 am-12:33 pm
1 stop5h 03m
Ontario
Tue 12/1
5:00 am-1:03 pm
1 stop7h 03m
$459
Rapid CityOntario
RAP Rapid City - ONT Ontario
RAPONT
Rapid City
Sat 10/24
7:05 am-12:46 pm
1 stop6h 41m
Ontario
Thu 10/29
5:00 am-11:58 am
1 stop5h 58m
$459
Showing 1-10 of 12 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 September.
| 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 September 25, 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.
Overall
7.4
Crew
8.1
Entertainment
7.1
Comfort
7.3
Food
6.7
Boarding
7.7
Reviews
1 / 20
4.0
OkaySimon,Jun 2024
LAS - LAX
Overall
7.4
Crew
8.1
Entertainment
7.1
Comfort
7.3
Food
6.7
Boarding
7.7
Reviews
1 / 20
4.0
OkaySimon,Jun 2024
LAS - LAX
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.
Search flights from Rapid City to Ontario by cabin class
Find flights from Rapid City to Ontario, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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 25, 2026.
Rapid City and Ontario flights
Browse other Rapid City and Ontario flight options. Last updated on September 25, 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 September 25, 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 7,457,451 searches. Data last updated September 25, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$293 | Average$415 | FlexibilityNo cancel fee | On-time69% |