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Rapid City

$306+ Cheap flights from Ontario to Rapid City (ONT - RAP)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/23. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — RAP
Mar 15 — Mar 221
Sun 3/15
Sun 3/22
1 adult, Economy
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Cheap flight deals from Ontario to Rapid City

Cheapest flights from Ontario to Rapid City
Explore the most affordable flight options available from Ontario to Rapid City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 13, 2026.

This United Airlines deal was found by Cheapflights users on 2/12. 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 2/275:00 am
ONT
-
RAP
1 stop7h 13m
United Airlines
Tue 3/32:52 pm
RAP
-
ONT
1 stop6h 58m
United Airlines
Deal found 2/12$309
This United Airlines deal was found by Cheapflights users on 2/10. 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.
Fri 3/65:15 am
ONT
-
RAP
1 stop6h 58m
United Airlines
Wed 3/117:00 am
RAP
-
ONT
1 stop6h 48m
United Airlines
Deal found 2/10$359
This United Airlines deal was found by Cheapflights users on 2/10. 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.
Thu 3/51:50 pm
ONT
-
RAP
1 stop7h 07m
United Airlines
Wed 3/117:00 am
RAP
-
ONT
1 stop6h 48m
United Airlines
Deal found 2/10$361
This United Airlines deal was found by Cheapflights users on 2/12. 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 9/16:00 am
ONT
-
RAP
2 stops8h 52m
United Airlines
Wed 9/97:05 am
RAP
-
ONT
1 stop6h 28m
United Airlines
Deal found 2/12$364
This United Airlines deal was found by Cheapflights users on 2/10. 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 5/21:40 pm
ONT
-
RAP
1 stop5h 48m
United Airlines
Sun 5/32:35 pm
RAP
-
ONT
1 stop7h 01m
United Airlines
Deal found 2/10$369
This United Airlines deal was found by Cheapflights users on 2/10. 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 8/85:00 am
ONT
-
RAP
1 stop6h 35m
United Airlines
Tue 8/1810:45 am
RAP
-
ONT
2 stops8h 02m
United Airlines
Deal found 2/10$379
This United Airlines deal was found by Cheapflights users on 2/9. 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 2/245:00 am
ONT
-
RAP
1 stop7h 13m
United Airlines
Sat 2/282:52 pm
RAP
-
ONT
1 stop6h 58m
United Airlines
Deal found 2/9$389
This United Airlines deal was found by Cheapflights users on 2/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/265:00 am
ONT
-
RAP
1 stop7h 13m
United Airlines
Mon 3/22:52 pm
RAP
-
ONT
2 stops9h 05m
United Airlines
Deal found 2/11$398

Find flight deals from Ontario to Rapid City

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Rapid City (RAP). 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 February 13, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$359
(United Airlines)

One-way from

$306
(United Airlines)

Popular in

April

Cheapest in

October

Average price

$397
Provider with most accurate pricing for Ontario-Rapid City flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ontario-Rapid City flights.
Search Deals
From Ontario to Rapid City
Search Deals
One-way flight from Ontario to Rapid City
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($58 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Rapid City 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 February 13, 2026.
Use the filters below to find and compare flights from Ontario to Rapid City that are best for you.

Fly from

Ontario

Fly to

Rapid City

Route

Depart

Return

Price

OntarioRapid City

ONT - RAP

ONTRAP

Ontario

Fri 2/27

5:00 am-1:13 pm

1 stop7h 13m

Rapid City

Tue 3/3

2:52 pm-8:50 pm

1 stop6h 58m

$309

OntarioRapid City

ONT - RAP

ONTRAP

Ontario

Thu 3/5

1:50 pm-9:57 pm

1 stop7h 07m

Rapid City

Wed 3/11

7:00 am-12:48 pm

1 stop6h 48m

$361

OntarioRapid City

ONT - RAP

ONTRAP

Ontario

Tue 5/26

5:00 am-12:29 pm

1 stop6h 29m

Rapid City

Sat 5/30

4:41 pm-8:42 pm

1 stop5h 01m

$374

OntarioRapid City

ONT - RAP

ONTRAP

Ontario

Sat 8/8

5:00 am-12:35 pm

1 stop6h 35m

Rapid City

Tue 8/18

4:30 pm-8:20 pm

1 stop4h 50m

$374

OntarioRapid City

ONT - RAP

ONTRAP

Ontario

Mon 6/1

5:00 am-12:35 pm

1 stop6h 35m

Rapid City

Sun 6/7

11:15 am-5:18 pm

1 stop7h 03m

$374

OntarioRapid City

ONT - RAP

ONTRAP

Ontario

Sat 5/2

10:43 am-8:28 pm

2 stops8h 45m

Rapid City

Sun 5/3

2:35 pm-8:36 pm

1 stop7h 01m

$374

OntarioRapid City

ONT - RAP

ONTRAP

Ontario

Tue 5/26

5:00 am-12:29 pm

1 stop6h 29m

Rapid City

Tue 6/2

7:00 am-12:47 pm

1 stop6h 47m

$389

OntarioRapid City

ONT - RAP

ONTRAP

Ontario

Tue 2/24

5:00 am-1:13 pm

1 stop7h 13m

Rapid City

Sat 2/28

2:52 pm-8:50 pm

1 stop6h 58m

$389

OntarioRapid City

ONT - RAP

ONTRAP

Ontario

Sat 5/30

5:00 am-12:29 pm

1 stop6h 29m

Rapid City

Tue 6/2

7:00 am-12:47 pm

1 stop6h 47m

$389

OntarioRapid City

ONT - RAP

ONTRAP

Ontario

Sat 5/23

5:00 am-12:35 pm

1 stop6h 35m

$306

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/12

Showing 1-10 of 15 results
1
2

Compare providers for flights from Ontario to Rapid City

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 Ontario to Rapid City in February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust 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 Ontario-Rapid City flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Rapid City flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Rapid City flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-Rapid City 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 Ontario-Rapid City 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 Ontario to Rapid City

Have a flexible travel schedule? Discover the best time to fly to Rapid City from Ontario 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 Ontario to Rapid City

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

Currently, June is the cheapest month in which you can book a flight from Ontario to Rapid City (average of $181). Flying from Ontario to Rapid City in March is currently the most expensive (average of $374). 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 Rapid City

Get insights into the airlines that provide service to Rapid City. 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 Rapid City. Reviews last updated February 13, 2026.
See what other customers who have flown with United Airlines and American Airlines from Ontario to Rapid City have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,283 reviews

Comfort

7.3

Boarding

7.7

Entertainment

7.1

Food

6.6

Overall

7.4

Crew

8.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
9,283 reviews
United Airlines
7.4
Good
9,283 reviews

Comfort

7.3

Boarding

7.7

Entertainment

7.1

Food

6.6

Overall

7.4

Crew

8.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
American Airlines
7.2
Good
11,275 reviews
United Airlines
7.4
Good
9,283 reviews

Comfort

7.3

Boarding

7.7

Entertainment

7.1

Food

6.6

Overall

7.4

Crew

8.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Related info for your journey

Find useful and relevant information for your journey from Ontario to Rapid City. 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 Ontario to Rapid City?

    A quick flight from Ontario to Rapid City can take about 7h 13m. United Airlines provides one of the quickest options available for as low as $309. The distance from Ontario to Rapid City is about 1038 mi.

  • What are the cheapest airlines flying from Ontario to Rapid City round-trip?

    Cheapflights users have booked flights from Ontario to Rapid City round-trip from $258. Another airline that can offer you cheap pricing is United Airlines. Users have found that American Airlines is 42% cheaper than the other options available to this destination.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Ontario to Rapid City 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 Ontario to Rapid City?

    Currently, June is the cheapest month in which you can book a flight from Ontario to Rapid City (average of $181). Flying from Ontario to Rapid City in March is currently the most expensive (average of $374). 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.

See more FAQs

Traveling to a place near Rapid City?

Book flights to Rapid City if you plan to visit one of these locations
Keystone
Deadwood
Sturgis
Spearfish

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Top 2 airlines flying from Ontario to Rapid City

Discover the top 2 airlines that operate flights from Ontario to Rapid City. 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 February 13, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$258Average$496FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$258Average$399FlexibilityNo cancel feeOn-time69%

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