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Cheap flights from Rapid City to Los Angeles from $279

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Rapid City to Los Angeles departing on 4/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Rapid City to Los Angeles

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
2:42 pm - 8:36 pm
RAP
-
ONT
6h 54m
1 stop
United Airlines Logo
5:10 am - 11:24 am
ONT
-
RAP
5h 14m
1 stop
$279United Airlines
Tue, Apr 7 - Sat, Apr 11
United Airlines Logo
5:00 am - 12:20 pm
RAP
-
ONT
8h 20m
2 stops
United Airlines Logo
5:10 am - 11:24 am
ONT
-
RAP
5h 14m
1 stop
$284United Airlines
Tue, Apr 7 - Sat, Apr 11
United Airlines Logo
5:00 am - 12:20 pm
RAP
-
ONT
8h 20m
2 stops
United Airlines Logo
6:00 am - 3:40 pm
ONT
-
RAP
8h 40m
2 stops
$289United Airlines
Tue, Apr 7 - Sat, Apr 11
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
$309United Airlines
Tue, Mar 10 - Sat, Mar 14
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
$314United Airlines
Tue, Mar 10 - Sat, Mar 14
Multiple Airlines Logo
5:52 pm - 8:04 am
RAP
-
ONT
15h 12m
1 stop
Multiple Airlines Logo
11:00 am - 5:07 pm
ONT
-
RAP
5h 07m
1 stop
$360Multiple Airlines
Thu, Apr 2 - Sun, Apr 5
United Airlines Logo
2:45 pm - 8:50 pm
RAP
-
ONT
7h 05m
1 stop
United Airlines Logo
1:50 pm - 8:34 pm
ONT
-
RAP
5h 44m
1 stop
$389United Airlines
Sat, Mar 7 - Wed, Mar 11
United Airlines Logo
2:45 pm - 10:57 pm
RAP
-
ONT
9h 12m
2 stops
United Airlines Logo
1:50 pm - 8:34 pm
ONT
-
RAP
5h 44m
1 stop
$394United Airlines
Sat, Mar 7 - Wed, Mar 11
United Airlines Logo
5:00 am - 12:18 pm
RAP
-
ONT
8h 18m
2 stops
United Airlines Logo
6:15 am - 3:57 pm
ONT
-
RAP
8h 42m
2 stops
$400United Airlines
Tue, Mar 10 - Sat, Mar 14
United Airlines Logo
2:42 pm - 8:36 pm
RAP
-
ONT
6h 54m
1 stop
United Airlines Logo
5:00 am - 11:35 am
ONT
-
RAP
5h 35m
1 stop
$421United Airlines
Tue, Apr 28 - Fri, May 1

Delta flights from Rapid City to Ontario

Our best Delta deals on Rapid City to Ontario flight tickets
Delta
Apr 28
RAP3:55 pmRapid City
8h 49m
2 stops
ONT11:44 pmOntario
May 1
ONT11:53 amOntario
9h 27m
2 stops
RAP10:20 pmRapid City
$446
Delta
Apr 28
RAP3:55 pmRapid City
8h 49m
2 stops
ONT11:44 pmOntario
May 1
ONT11:53 amOntario
9h 27m
2 stops
RAP10:20 pmRapid City
$476
Delta
Mar 30
RAP4:01 pmRapid City
8h 50m
2 stops
ONT11:51 pmOntario
Apr 2
ONT1:20 pmOntario
8h 05m
2 stops
RAP10:25 pmRapid City
$587

United Airlines flights from Rapid City to Ontario

Our best United Airlines deals on Rapid City to Ontario flight tickets
United Airlines
Apr 7
RAP2:42 pmRapid City
6h 54m
1 stop
ONT8:36 pmOntario
Apr 11
ONT5:10 amOntario
5h 14m
1 stop
RAP11:24 amRapid City
$279
United Airlines
Apr 7
RAP5:00 amRapid City
8h 20m
2 stops
ONT12:20 pmOntario
Apr 11
ONT5:10 amOntario
5h 14m
1 stop
RAP11:24 amRapid City
$284
United Airlines
Apr 7
RAP5:00 amRapid City
8h 20m
2 stops
ONT12:20 pmOntario
Apr 11
ONT6:00 amOntario
8h 40m
2 stops
RAP3:40 pmRapid City
$289

momondo 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, momondo users made 832,500 searches. Data last updated February 24, 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

Price

Rapid CityOntario

RAP - ONT

RAPONT

Rapid City

Tue 4/7

2:42 pm-8:36 pm

1 stop6h 54m

Ontario

Sat 4/11

5:10 am-11:24 am

1 stop5h 14m

$279

Rapid CityOntario

RAP - ONT

RAPONT

Rapid City

Tue 4/7

5:00 am-12:20 pm

2 stops8h 20m

Ontario

Sat 4/11

5:10 am-11:24 am

1 stop5h 14m

$284

Rapid CityOntario

RAP - ONT

RAPONT

Rapid City

Tue 4/7

5:00 am-12:20 pm

2 stops8h 20m

Ontario

Sat 4/11

6:00 am-3:40 pm

2 stops8h 40m

$289

Rapid CityOntario

RAP - ONT

RAPONT

Rapid City

Tue 3/10

2:45 pm-8:50 pm

1 stop7h 05m

Ontario

Sat 3/14

5:15 am-1:13 pm

1 stop6h 58m

$309

Rapid CityOntario

RAP - ONT

RAPONT

Rapid City

Tue 3/10

5:00 am-12:18 pm

2 stops8h 18m

Ontario

Sat 3/14

5:15 am-1:13 pm

1 stop6h 58m

$314

Rapid CityOntario

RAP - ONT

RAPONT

Rapid City

Thu 4/2

5:52 pm-8:04 am

1 stop15h 12m

Ontario

Sun 4/5

11:00 am-5:07 pm

1 stop5h 07m

$360

Rapid CityOntario

RAP - ONT

RAPONT

Rapid City

Sat 3/7

2:45 pm-8:50 pm

1 stop7h 05m

Ontario

Wed 3/11

1:50 pm-8:34 pm

1 stop5h 44m

$389

Rapid CityOntario

RAP - ONT

RAPONT

Rapid City

Sat 3/7

2:45 pm-10:57 pm

2 stops9h 12m

Ontario

Wed 3/11

1:50 pm-8:34 pm

1 stop5h 44m

$394

Rapid CityOntario

RAP - ONT

RAPONT

Rapid City

Tue 3/10

5:00 am-12:18 pm

2 stops8h 18m

Ontario

Sat 3/14

6:15 am-3:57 pm

2 stops8h 42m

$400

Rapid CityOntario

RAP - ONT

RAPONT

Rapid City

Tue 4/28

2:42 pm-8:36 pm

1 stop6h 54m

Ontario

Fri 5/1

5:00 am-11:35 am

1 stop5h 35m

$421

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Rapid City to Ontario

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Ontario?

In general, August is the cheapest month to fly from Rapid City to Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $236. If you aren’t able to travel during the month of August, then book flights to Ontario from Rapid City during January instead. Flights to Ontario in January, while not as cheap as those in August, still average around $308.

When to book flights from Rapid City to Ontario

Are you open to changing your travel dates? Check out the ideal times to fly from Rapid City to Ontario according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Rapid City to Ontario (RAP to ONT) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Rapid City to Ontario

Fastest flight time

5h 23m

Direct flights

None
The fastest flight from Rapid City to Ontario takes 5h 23m
There are no direct flights from Rapid City to Ontario. There are no popular flight routes from Rapid City to Ontario.
Search flight deals

  • How far is Rapid City to Ontario by plane?

    The straight-line distance from Rapid City to Ontario is 1034.4 mi. By plane, this route typically takes 5h 23m.

  • When did momondo last update prices for flights from Rapid City Airport to Ontario Airport?

    Prices for flights from Rapid City Airport to Ontario Airport are updated daily.

  • How many operators does momondo search for flights from Rapid City Airport to Ontario Airport?

  • How old do you have to be to fly from Rapid City Airport to Ontario Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Rapid City Airport to Ontario Airport.

  • What documentation or ID do you need to fly to Ontario Airport?

    The required travel and health documents for your Ontario Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Ontario Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Rapid City to Ontario?

Best airlines flying from Rapid City to Ontario

Compare and see reviews for airlines that fly from Rapid City to Ontario with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $292Free CancellationRating
7.4
9,344 reviews
Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Rapid City to Ontario?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Rapid City to Ontario for you.

Can I find flights from Rapid City to Ontario with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Ontario from Rapid City with this policy.

How can momondo help me find flights from Rapid City to Ontario?

Once you have performed a search for Rapid City to Ontario flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Rapid City to Ontario right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Rapid City to Ontario flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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