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Cheap flights from Rapid City to Los Angeles from $232

This is the cheapest one-way 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 12/23. 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
2:45 pm - 8:46 pm
RAP
-
ONT
7h 01m1 stop
United Airlines Logo
1:40 pm - 8:43 pm
ONT
-
RAP
6h 03m1 stop
$319United Airlines
Thu, Apr 23 - Thu, Apr 30
United Airlines Logo
2:40 pm - 8:58 pm
RAP
-
ONT
7h 18m1 stop
United Airlines Logo
1:24 pm - 8:32 pm
ONT
-
RAP
6h 08m1 stop
$359United Airlines
Sat, Jan 10 - Wed, Jan 14
United Airlines Logo
12:35 pm - 10:53 pm
RAP
-
ONT
11h 18m2 stops
United Airlines Logo
1:24 pm - 8:32 pm
ONT
-
RAP
6h 08m1 stop
$364United Airlines
Sat, Jan 10 - Wed, Jan 14
United Airlines Logo
10:45 am - 10:53 pm
RAP
-
ONT
13h 08m2 stops
United Airlines Logo
1:53 pm - 10:29 pm
ONT
-
RAP
7h 36m2 stops
$369United Airlines
Sat, Jan 10 - Wed, Jan 14
United Airlines Logo
3:35 pm - 9:08 pm
RAP
-
ONT
6h 33m1 stop
United Airlines Logo
1:24 pm - 8:32 pm
ONT
-
RAP
6h 08m1 stop
$419United Airlines
Mon, Jan 5 - Mon, Jan 12
United Airlines Logo
12:35 pm - 10:53 pm
RAP
-
ONT
11h 18m2 stops
United Airlines Logo
6:00 am - 1:12 pm
ONT
-
RAP
30h 12m3 stops
$422United Airlines
Sat, Jan 10 - Wed, Jan 14
United Airlines Logo
3:35 pm - 9:08 pm
RAP
-
ONT
6h 33m1 stop
United Airlines Logo
1:53 pm - 10:29 pm
ONT
-
RAP
7h 36m2 stops
$424United Airlines
Mon, Jan 5 - Mon, Jan 12
Delta Logo
10:54 am - 10:51 pm
RAP
-
ONT
12h 57m2 stops
Delta Logo
1:11 pm - 10:28 pm
ONT
-
RAP
8h 17m2 stops
$425Delta
Mon, Jan 12 - Sat, Jan 17
United Airlines Logo
7:05 am - 12:33 pm
RAP
-
ONT
6h 28m1 stop
United Airlines Logo
5:00 am - 11:13 am
ONT
-
RAP
5h 13m1 stop
$455United Airlines
Sun, Jun 7 - Wed, Jun 24
American Airlines Logo
5:57 am - 11:20 am
RAP
-
ONT
6h 23m1 stop
American Airlines Logo
8:05 pm - 11:14 am
ONT
-
RAP
14h 09m2 stops
$466American Airlines
Thu, Apr 23 - Thu, Apr 30

United Airlines flights from Rapid City to Ontario

Our best United Airlines deals on Rapid City to Ontario flight tickets
United Airlines
Apr 23
RAP2:45 pmRapid City
7h 01m
1 stop
ONT8:46 pmOntario
Apr 30
ONT1:40 pmOntario
6h 03m
1 stop
RAP8:43 pmRapid City
$319
Find similar
United Airlines
Jan 10
RAP2:40 pmRapid City
7h 18m
1 stop
ONT8:58 pmOntario
Jan 14
ONT1:24 pmOntario
6h 08m
1 stop
RAP8:32 pmRapid City
$359
Find similar
United Airlines
Jan 10
RAP12:35 pmRapid City
11h 18m
2 stops
ONT10:53 pmOntario
Jan 14
ONT1:24 pmOntario
6h 08m
1 stop
RAP8:32 pmRapid City
$364
Find similar

American Airlines flights from Rapid City to Ontario

Our best American Airlines deals on Rapid City to Ontario flight tickets
American Airlines
Apr 23
RAP5:57 amRapid City
6h 23m
1 stop
ONT11:20 amOntario
Apr 30
ONT8:05 pmOntario
14h 09m
2 stops
RAP11:14 amRapid City
$466
Find similar
American Airlines
Apr 23
RAP11:46 amRapid City
10h 50m
2 stops
ONT9:36 pmOntario
Apr 30
ONT8:05 pmOntario
14h 09m
2 stops
RAP11:14 amRapid City
$559
Find similar
American Airlines
Jun 7
RAP5:58 amRapid City
8h 36m
1 stop
ONT1:34 pmOntario
Jun 24
ONT8:03 pmOntario
14h 02m
2 stops
RAP11:05 amRapid City
$609
Find similar

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 December 16, 2025.
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

Thu 4/23

2:45 pm-8:46 pm

1 stop7h 01m

Ontario

Thu 4/30

1:40 pm-8:43 pm

1 stop6h 03m

$319

Rapid CityOntario

RAP - ONT

RAPONT

Rapid City

Sat 1/10

2:40 pm-8:58 pm

1 stop7h 18m

Ontario

Wed 1/14

1:24 pm-8:32 pm

1 stop6h 08m

$359

Rapid CityOntario

RAP - ONT

RAPONT

Rapid City

Sat 1/10

12:35 pm-10:53 pm

2 stops11h 18m

Ontario

Wed 1/14

1:24 pm-8:32 pm

1 stop6h 08m

$364

Rapid CityOntario

RAP - ONT

RAPONT

Rapid City

Sat 1/10

10:45 am-10:53 pm

2 stops13h 08m

Ontario

Wed 1/14

1:53 pm-10:29 pm

2 stops7h 36m

$369

Rapid CityOntario

RAP - ONT

RAPONT

Rapid City

Mon 1/5

3:35 pm-9:08 pm

1 stop6h 33m

Ontario

Mon 1/12

1:24 pm-8:32 pm

1 stop6h 08m

$419

Rapid CityOntario

RAP - ONT

RAPONT

Rapid City

Sat 1/10

12:35 pm-10:53 pm

2 stops11h 18m

Ontario

Wed 1/14

6:00 am-1:12 pm

3 stops30h 12m

$422

Rapid CityOntario

RAP - ONT

RAPONT

Rapid City

Mon 1/5

3:35 pm-9:08 pm

1 stop6h 33m

Ontario

Mon 1/12

1:53 pm-10:29 pm

2 stops7h 36m

$424

Rapid CityOntario

RAP - ONT

RAPONT

Rapid City

Mon 1/12

10:54 am-10:51 pm

2 stops12h 57m

Ontario

Sat 1/17

1:11 pm-10:28 pm

2 stops8h 17m

$425

Rapid CityOntario

RAP - ONT

RAPONT

Rapid City

Sun 6/7

7:05 am-12:33 pm

1 stop6h 28m

Ontario

Wed 6/24

5:00 am-11:13 am

1 stop5h 13m

$455

Rapid CityOntario

RAP - ONT

RAPONT

Rapid City

Thu 4/23

5:57 am-11:20 am

1 stop6h 23m

Ontario

Thu 4/30

8:05 pm-11:14 am

2 stops14h 09m

$466

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 14 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 $318.

What is the cheapest day to depart on your flight to Ontario?

The cheapest day to depart on your flight to Ontario is on a Friday when prices can be found for as low as $377. This is often the case because there is less demand to fly during this day of the week. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from Rapid City to Ontario for around $498.

What is the cheapest time of day to depart on your flight to Ontario?

In the morning is the cheapest time of day to fly from Rapid City to Ontario when you can find flight prices for as low as $474. Flying to Ontario in the morning is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $492 on average. Flights to Ontario from Rapid City in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

4h 47m

Direct flights

None
The fastest flight from Rapid City to Ontario takes 4h 47m
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 4h 47m.

  • 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 $283Free CancellationRating
7.4
9,092 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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