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Cheap flights from Rapid City to San Diego from $259

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 San Diego departing on 2/28. 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 San Diego

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
5:20 am - 9:24 am
RAP
-
SAN
5h 04m1 stop
United Airlines Logo
4:10 pm - 10:16 pm
SAN
-
RAP
5h 06m1 stop
$259United Airlines
Sat, Feb 28 - Tue, Mar 3
United Airlines Logo
2:52 pm - 11:40 pm
RAP
-
SAN
9h 48m2 stops
United Airlines Logo
4:10 pm - 10:16 pm
SAN
-
RAP
5h 06m1 stop
$264United Airlines
Sat, Feb 28 - Tue, Mar 3
Delta Logo
6:00 am - 1:48 pm
RAP
-
SAN
8h 48m1 stop
Delta Logo
3:00 pm - 10:28 pm
SAN
-
RAP
6h 28m1 stop
$279Delta
Tue, Jan 27 - Sat, Jan 31
Delta Logo
10:54 am - 6:08 pm
RAP
-
SAN
8h 14m2 stops
Delta Logo
6:15 am - 3:25 pm
SAN
-
RAP
8h 10m1 stop
$284Delta
Tue, Jan 27 - Sat, Jan 31
Delta Logo
10:54 am - 7:08 pm
RAP
-
SAN
9h 14m2 stops
Delta Logo
1:29 pm - 10:28 pm
SAN
-
RAP
7h 59m2 stops
$289Delta
Tue, Jan 27 - Sat, Jan 31
Delta Logo
6:00 am - 1:48 pm
RAP
-
SAN
8h 48m1 stop
Delta Logo
6:15 am - 3:25 pm
SAN
-
RAP
8h 10m1 stop
$294Delta
Thu, Feb 5 - Mon, Feb 9
Delta Logo
6:00 am - 1:48 pm
RAP
-
SAN
8h 48m1 stop
Delta Logo
6:15 am - 3:25 pm
SAN
-
RAP
8h 10m1 stop
$299Delta
Tue, Jan 27 - Sat, Jan 31
Delta Logo
6:00 am - 6:00 pm
RAP
-
SAN
13h 00m2 stops
Delta Logo
6:15 am - 3:25 pm
SAN
-
RAP
8h 10m1 stop
$304Delta
Tue, Jan 27 - Sat, Jan 31
Delta Logo
6:00 am - 6:00 pm
RAP
-
SAN
13h 00m2 stops
Delta Logo
11:00 am - 10:28 pm
SAN
-
RAP
10h 28m2 stops
$309Delta
Tue, Jan 27 - Sat, Jan 31
Delta Logo
6:00 am - 1:48 pm
RAP
-
SAN
8h 48m1 stop
Delta Logo
11:58 am - 10:28 pm
SAN
-
RAP
9h 30m1 stop
$325Delta
Wed, Jan 28 - Sat, Jan 31

American Airlines flights from Rapid City to San Diego

Our best American Airlines deals on Rapid City to San Diego flight tickets
American Airlines
Mar 5
RAP2:22 pmRapid City
7h 03m
1 stop
SAN8:25 pmSan Diego
Mar 9
SAN6:20 amSan Diego
6h 35m
1 stop
RAP1:55 pmRapid City
$471
Find similar
American Airlines
Dec 22
RAP5:30 amRapid City
10h 54m
2 stops
SAN3:24 pmSan Diego
Dec 29
SAN9:50 amSan Diego
10h 30m
2 stops
RAP9:20 pmRapid City
$1,111
Find similar

Delta flights from Rapid City to San Diego

Our best Delta deals on Rapid City to San Diego flight tickets
Delta
Jan 27
RAP6:00 amRapid City
8h 48m
1 stop
SAN1:48 pmSan Diego
Jan 31
SAN3:00 pmSan Diego
6h 28m
1 stop
RAP10:28 pmRapid City
$279
Find similar
Delta
Jan 27
RAP10:54 amRapid City
8h 14m
2 stops
SAN6:08 pmSan Diego
Jan 31
SAN6:15 amSan Diego
8h 10m
1 stop
RAP3:25 pmRapid City
$284
Find similar
Delta
Jan 27
RAP10:54 amRapid City
9h 14m
2 stops
SAN7:08 pmSan Diego
Jan 31
SAN1:29 pmSan Diego
7h 59m
2 stops
RAP10:28 pmRapid City
$289
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Rapid City to San Diego 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 11, 2025.
Use the filters below to find and compare flights from Rapid City to San Diego that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Rapid CitySan Diego

RAP - SAN

RAPSAN

Rapid City

Sat 2/28

5:20 am-9:24 am

1 stop5h 04m

San Diego

Tue 3/3

4:10 pm-10:16 pm

1 stop5h 06m

$259

Rapid CitySan Diego

RAP - SAN

RAPSAN

Rapid City

Sat 2/28

2:52 pm-11:40 pm

2 stops9h 48m

San Diego

Tue 3/3

4:10 pm-10:16 pm

1 stop5h 06m

$264

Rapid CitySan Diego

RAP - SAN

RAPSAN

Rapid City

Tue 1/27

6:00 am-1:48 pm

1 stop8h 48m

San Diego

Sat 1/31

3:00 pm-10:28 pm

1 stop6h 28m

$279

Rapid CitySan Diego

RAP - SAN

RAPSAN

Rapid City

Tue 1/27

10:54 am-6:08 pm

2 stops8h 14m

San Diego

Sat 1/31

6:15 am-3:25 pm

1 stop8h 10m

$284

Rapid CitySan Diego

RAP - SAN

RAPSAN

Rapid City

Tue 1/27

10:54 am-7:08 pm

2 stops9h 14m

San Diego

Sat 1/31

1:29 pm-10:28 pm

2 stops7h 59m

$289

Rapid CitySan Diego

RAP - SAN

RAPSAN

Rapid City

Thu 2/5

6:00 am-1:48 pm

1 stop8h 48m

San Diego

Mon 2/9

6:15 am-3:25 pm

1 stop8h 10m

$294

Rapid CitySan Diego

RAP - SAN

RAPSAN

Rapid City

Tue 1/27

6:00 am-1:48 pm

1 stop8h 48m

San Diego

Sat 1/31

6:15 am-3:25 pm

1 stop8h 10m

$299

Rapid CitySan Diego

RAP - SAN

RAPSAN

Rapid City

Tue 1/27

6:00 am-6:00 pm

2 stops13h 00m

San Diego

Sat 1/31

6:15 am-3:25 pm

1 stop8h 10m

$304

Rapid CitySan Diego

RAP - SAN

RAPSAN

Rapid City

Tue 1/27

6:00 am-6:00 pm

2 stops13h 00m

San Diego

Sat 1/31

11:00 am-10:28 pm

2 stops10h 28m

$309

Rapid CitySan Diego

RAP - SAN

RAPSAN

Rapid City

Wed 1/28

6:00 am-1:48 pm

1 stop8h 48m

San Diego

Sat 1/31

11:58 am-10:28 pm

1 stop9h 30m

$325

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to San Diego from

How to get the cheapest flight ticket from Rapid City to San Diego

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 San Diego?

If you are unable to visit San Diego during the month of June, then departing from Rapid City during the month March is also very affordable. Most momondo users find prices during this month for around $293.

What is the cheapest day to depart on your flight to San Diego?

The cheapest day to depart from Rapid City to San Diego is on a Wednesday. Travelers who choose to depart for San Diego on a Wednesday will often find tickets for as low as $378. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $541. These prices are subject to change though, so be sure to set up a Price Alert for flights to San Diego.

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

The cheapest time of day to fly to San Diego is in the afternoon when flights can be purchased for as low as $394. Flights at noon are often more expensive with an average ticket price of $561.

How have Rapid City to San Diego flight prices changed over time?

As of December 2025, prices for Rapid City to San Diego flights are approximately 63% more expensive when compared to flights at the same time last year.

When to book flights from Rapid City to San Diego

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

Cheap Rapid City to San Diego (RAP to SAN) flight deals and tips

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

Fastest flight time

5h 04m

Direct flights

None
The fastest flight from Rapid City to San Diego takes 5h 04m
There are no direct flights from Rapid City to San Diego. There are no popular flight routes from Rapid City to San Diego.
Search flight deals

  • How far is Rapid City to San Diego by plane?

    A flight from Rapid City to San Diego will travel around 1085.0 mi. Flights usually cover this in 5h 04m, depending on flying conditions and air traffic around both airports.

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

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

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

  • How old do you have to be to fly from Rapid City Airport to San Diego 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 San Diego Airport.

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

    The travel and health documents required for your trip to San Diego Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at San Diego Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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

Best airlines flying from Rapid City to San Diego

Compare and see reviews for airlines that fly from Rapid City to San Diego with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $189Free CancellationRating
7.4
9,095 reviews
Search United Airlines flights
DeltaPriceFrom $258Free CancellationRating
7.9
8,007 reviews
Search Delta flights

Traveling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
Coronado
Chula Vista
El Cajon
Julian
National City
Imperial Beach
Poway
La Mesa
Borrego Springs
San Ysidro
Alpine
Lemon Grove
Santee

Why use momondo?

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

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 San Diego for you.

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

Yes. momondo allows you to filter the results for Rapid City to San Diego flights to just show those with flexible booking policies.

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

Once all potential Rapid City to San Diego flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

If you are simply researching potential flights to San Diego, momondo offers a useful price alert feature which will track prices for flights to San Diego from Rapid City and alert you when they change.

An easier way to manage your San Diego trip

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