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$279+ 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 10/22. Fares are subject to change and may not be available on all flights or dates of travel.
RAP — ONT
Nov 15 — Nov 221
Sat 11/15
Sat 11/22
1 adult, Economy
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Cheap 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 October 16, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$284
(United Airlines)

Popular in

November

Cheapest in

August

Average price

$426
Provider with most accurate pricing for Rapid City-Ontario flight deals.
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Provider most trusted by Cheapflights users for Rapid City-Ontario flights.
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From Rapid City to Ontario
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Highest demand for flights based on searches. 10% potential increase in price ($47 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from Rapid City to Ontario

Cheapest flights from Rapid City to Ontario
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 October 16, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2212:13 pmRAP - ONT
2 stops44h 34mMultiple Airlines
Sun 10/266:05 amONT - RAP
1 stop10h 03mMultiple Airlines
Deal found 10/16$279
This United Airlines deal was found by Cheapflights users on 10/15. 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 12/154:35 pmRAP - ONT
1 stop5h 07mUnited Airlines
Wed 12/311:40 pmONT - RAP
1 stop4h 32mUnited Airlines
Deal found 10/15$284
This Kiwi.com deal was found by Cheapflights users on 10/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/235:58 pmRAP - ONT
1 stop14h 49mMultiple Airlines
Sun 10/266:05 amONT - RAP
1 stop10h 03mMultiple Airlines
Deal found 10/16$332
This United Airlines deal was found by Cheapflights users on 10/16. 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 10/295:15 amRAP - ONT
2 stops8h 22mUnited Airlines
Fri 11/75:05 amONT - RAP
1 stop5h 00mUnited Airlines
Deal found 10/16$359
This Delta deal was found by Cheapflights users on 10/15. 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 12/1511:02 amRAP - ONT
2 stops12h 45mDelta
Wed 12/311:15 pmONT - RAP
2 stops8h 26mDelta
Deal found 10/15$369
This United Airlines deal was found by Cheapflights users on 10/16. 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 10/2311:15 amRAP - ONT
2 stops12h 37mUnited Airlines
Sun 10/265:05 amONT - RAP
1 stop5h 00mUnited Airlines
Deal found 10/16$374
This United Airlines deal was found by Cheapflights users on 10/16. 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 10/2212:56 pmRAP - ONT
1 stop5h 27mUnited Airlines
Sun 10/265:05 amONT - RAP
1 stop5h 00mUnited Airlines
Deal found 10/16$379
This United Airlines deal was found by Cheapflights users on 10/16. 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 11/157:10 amRAP - ONT
2 stops11h 24mUnited Airlines
Sat 11/221:29 pmONT - RAP
1 stop5h 57mUnited Airlines
Deal found 10/16$385
This American Airlines deal was found by Cheapflights users on 10/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/295:32 amRAP - ONT
1 stop7h 25mAmerican Airlines
Fri 11/712:46 pmONT - RAP
1 stop7h 30mAmerican Airlines
Deal found 10/16$408
This United Airlines deal was found by Cheapflights users on 10/16. 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.
Mon 11/247:10 amRAP - ONT
1 stop6h 23mUnited Airlines
Tue 12/25:05 amONT - RAP
1 stop7h 06mUnited Airlines
Deal found 10/16$445

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 October 16, 2025.
Use the filters below to find and compare flights from Rapid City to Ontario that are best for you.

Fly from

Rapid City

Fly to

Ontario

Route

Depart

Return

Price

Rapid CityOntario

RAP - ONT

RAPONT

Rapid City

Mon 12/15

4:35 pm-8:42 pm

1 stop5h 07m

Ontario

Wed 12/31

1:40 pm-7:12 pm

1 stop4h 32m

$284

Rapid CityOntario

RAP - ONT

RAPONT

Rapid City

Sat 2/28

3:21 pm-9:19 pm

1 stop6h 58m

Ontario

Wed 3/4

5:40 am-12:38 pm

1 stop5h 58m

$339

Rapid CityOntario

RAP - ONT

RAPONT

Rapid City

Wed 10/29

5:15 am-12:37 pm

2 stops8h 22m

Ontario

Fri 11/7

5:05 am-11:05 am

1 stop5h 00m

$359

Rapid CityOntario

RAP - ONT

RAPONT

Rapid City

Mon 12/15

11:02 am-10:47 pm

2 stops12h 45m

Ontario

Wed 12/31

1:15 pm-10:41 pm

2 stops8h 26m

$369

Rapid CityOntario

RAP - ONT

RAPONT

Rapid City

Sat 11/15

7:10 am-12:33 pm

1 stop6h 23m

Ontario

Sat 11/22

1:29 pm-9:59 pm

1 stop7h 30m

$379

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/15

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 October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • 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.
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 Rapid City to Ontario

What is the cheapest month to book a flight from Rapid City to Ontario?

Currently, December is the cheapest month in which you can book a flight from Rapid City to Ontario (average of $97). Flying from Rapid City to Ontario in March is currently the most expensive (average of $338). 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.

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 October 16, 2025.
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.
United Airlines
7.4
Good
8,982 reviews

Comfort

7.3

Entertainment

7.1

Overall

7.4

Crew

8.1

Boarding

7.7

Food

6.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
United Airlines
7.4
Good
8,982 reviews
United Airlines
7.4
Good
8,982 reviews

Comfort

7.3

Entertainment

7.1

Overall

7.4

Crew

8.1

Boarding

7.7

Food

6.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

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.

  • How long is the flight from Rapid City to Ontario?

    For as low as $284, United Airlines can have you in Ontario from Rapid City in 5h 07m. The distance between Rapid City and Ontario is about 1038 mi.

  • What is the cheapest airline to fly from Rapid City to Ontario round-trip?

    According to our current data, United Airlines ($283), offers the cheapest pricing from Rapid City to Ontario. You may be able to fly from Rapid City to Ontario for 26% less than the average price by searching for this airline.

  • Can I find deals for flights from Rapid City to Ontario that include hotel bookings?

    Yes. In addition to deals on Rapid City to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Rapid City to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Rapid City to Ontario.

  • Can I find deals for business class flights from Rapid City to Ontario?

    Yes. Cheapflights offers flight deals from Rapid City to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Rapid City to Ontario?

    Currently, December is the cheapest month in which you can book a flight from Rapid City to Ontario (average of $97). Flying from Rapid City to Ontario in March is currently the most expensive (average of $338). 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.

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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 October 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$283Average$386FlexibilityNo cancel feeOn-time69%

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