RAP - ONT

$286 Find Cheap Flights from Rapid City to Ontario

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Rapid City to Ontario departing on 2/26. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Ontario

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Rapid City to Ontario, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Rapid City to Ontario, as well as popular online travel agencies
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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$297
Overall average: $422
Multiple Airlines
Thu 2/26Tue 3/10
RAP - ONT • 1 stop
Cheapest one-way
$286
United Airlines
Thu 2/26
RAP - ONT • 1 stop
Top airlines
United Airlines
Cheapest • from $370 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
August
Cheapest • 42% price drop
October
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Ontario!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Rapid City to Ontario (RAP-ONT)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Rapid City to Ontario that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Rapid City to Ontario

Thu, Feb 26 - Tue, Mar 10
Multiple Airlines Logo
5:42 pm - 1:26 pm
RAP
-
ONT
20h 44m
1 stop
Multiple Airlines Logo
2:23 pm - 7:22 pm
ONT
-
RAP
27h 59m
2 stops
$297Multiple Airlines
Thu, Feb 26 - Tue, Mar 10
United Airlines Logo
7:00 am - 12:43 pm
RAP
-
ONT
6h 43m
1 stop
United Airlines Logo
5:15 am - 11:05 am
ONT
-
RAP
4h 50m
1 stop
$370United Airlines
Sat, Feb 21 - Wed, Feb 25
United Airlines Logo
7:00 am - 12:43 pm
RAP
-
ONT
6h 43m
1 stop
United Airlines Logo
5:00 am - 1:13 pm
ONT
-
RAP
7h 13m
1 stop
$389United Airlines
Tue, Feb 24 - Sat, Feb 28
United Airlines Logo
5:20 am - 12:38 pm
RAP
-
ONT
8h 18m
2 stops
United Airlines Logo
1:45 pm - 10:16 pm
ONT
-
RAP
7h 31m
1 stop
$394United Airlines
Tue, Feb 24 - Sat, Feb 28
United Airlines Logo
5:20 am - 12:38 pm
RAP
-
ONT
8h 18m
2 stops
United Airlines Logo
1:53 pm - 10:16 pm
ONT
-
RAP
7h 23m
2 stops
$399United Airlines
Thu, Feb 26 - Mon, Mar 2
United Airlines Logo
7:00 am - 12:43 pm
RAP
-
ONT
6h 43m
1 stop
United Airlines Logo
1:45 pm - 10:16 pm
ONT
-
RAP
7h 31m
1 stop
$412United Airlines
Sat, Feb 21 - Wed, Feb 25
United Airlines Logo
7:00 am - 12:43 pm
RAP
-
ONT
6h 43m
1 stop
United Airlines Logo
1:45 pm - 10:16 pm
ONT
-
RAP
7h 31m
1 stop
$434United Airlines
Wed, Mar 11 - Sun, Mar 15
United Airlines Logo
7:00 am - 12:48 pm
RAP
-
ONT
6h 48m
1 stop
United Airlines Logo
5:15 am - 1:13 pm
ONT
-
RAP
6h 58m
1 stop
$455United Airlines
Tue, Mar 10 - Sun, Mar 15
United Airlines Logo
2:45 pm - 8:50 pm
RAP
-
ONT
7h 05m
1 stop
United Airlines Logo
5:15 am - 1:13 pm
ONT
-
RAP
6h 58m
1 stop
$470United Airlines
Tue, Mar 10 - Sun, Mar 15
United Airlines Logo
5:00 am - 12:18 pm
RAP
-
ONT
8h 18m
2 stops
United Airlines Logo
5:15 am - 1:13 pm
ONT
-
RAP
6h 58m
1 stop
$475United Airlines
Booking Insights

KAYAK's insights & trends for Rapid City to Ontario flights

Get data-powered insights and trends into flights from Rapid City to Ontario to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Rapid City to Ontario?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Rapid City to Ontario, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Rapid City to Ontario is August, where tickets cost $236 (return) on average. On the other hand, the most expensive months are December and November, where the average cost of round-trip tickets is $569 and $479 respectively.

Find deals

Good to know

Low seasonJanuary
Cheapest flight$286
Best time to beat the crowds with an average 25% drop in price.
Most popular time to fly and prices are also 3% lower on average.
Flight from Rapid City to Ontario

When to book flights from Rapid City to Ontario

Are your dates flexible? Find out the best times to travel from Rapid City to Ontario based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Rapid City to Ontario

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

    In the last 3 days, the lowest price for a flight from Rapid City to Ontario was $286 for a one-way ticket and $297 for a round-trip.

  • Do I need a passport to fly between Rapid City and Ontario?

    A passport is not required to fly from Rapid City to Ontario.

  • Which airports will I be using when flying from Rapid City to Ontario?

    Rapid City airport is called Rapid City and the only airport in Ontario is Ontario.

  • Which aircraft models fly most regularly from Rapid City to Ontario?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Rapid City to Ontario?

    Star Alliance is the only airline alliance operating flights between Rapid City and Ontario.

  • How does KAYAK find such low prices on flights from Rapid City to Ontario?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Rapid City to Ontario.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Rapid City to Ontario?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario from Rapid City is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Rapid City to Ontario?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ontario with an airline and back to Rapid City with another airline. Booking your flights between Rapid City and ONT can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Rapid City to Ontario?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ontario from Rapid City up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Rapid City to Ontario

 
See real verified KAYAK customer reviews for airlines flying from Rapid City to Ontario. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Rapid City to Ontario? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9269 reviews
7.3Comfort
8.1Crew
6.6Food
7.1Entertainment
7.7Boarding
Airline reviews

The power at the seat didn't work and the seat itself was difficult to adjust - this was a business class seat. Flight attendant gave me miles to compensate. The attendant was very professional and on top of his game the entire flight.

10.0 ExcellentBill, Feb 2026
IAH - LAX
Read more United Airlines reviews

The power at the seat didn't work and the seat itself was difficult to adjust - this was a business class seat. Flight attendant gave me miles to compensate. The attendant was very professional and on top of his game the entire flight.

the whole trip was smooth, and as comfortable as flying is these days. flight crew was friendly and very courteous and helpful.

First class ticket gets you a choice of chips or nuts. . Just like economy Southwest. Also no screen in the seats. This is first class???!

Flight arrived 30 min early and bag was waiting at the baggage pickup. United Club HNL was one of the nicest in the system

Yet another flight in which beverage and snack service was skipped. Other that that, firmly mediocre. Landed early, to gate late due to congestion at the gates. Airline's fault or airports fault: unknown.

Teeny tiny bathrooms, crew was not realistic about when we'd arrive.

Unbelievably poor service from flight attendants. They didn’t even do water service on a four hour flight. Just disrespectful.

Flight was late - I was downgraded from first class to coach

United needs to step up their game. Delayed flight leaving Seattle, San Francisco. Older aircraft, not very comfortable.

Plane boarded early a quickly, was mostly full. We left close to on time. And landed early.

Everything you need to know for your flight from Rapid City to Ontario

Information on your arrival and departure airports

Rapid City (RAP)
Ontario (ONT)