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$194+ Cheap flights from Rapid City to San Diego (RAP - SAN)

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 9/11. Fares are subject to change and may not be available on all flights or dates of travel.
RAP — SAN
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheap flight deals from Rapid City to San Diego

Discover tips and strategies to find the most affordable flight options for your journey from Rapid City (RAP) to San Diego (SAN). 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 August 14, 2025.

Round-trip from

$274
(American Airlines)

One-way from

$194
(Delta)

Popular in

September

Cheapest in

June

Average price

$338
From Rapid City to San Diego
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One-way flight from Rapid City to San Diego
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Highest demand for flights based on searches. 7% potential increase in price ($32 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($13 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Rapid City to San Diego

Cheapest flights from Rapid City to San Diego
Explore the most affordable flight options available from Rapid City to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

This American Airlines deal was found by Cheapflights users on 8/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/3012:10 pmRAP - SAN
1 stop7h 04mAmerican Airlines
Tue 9/308:18 amSAN - RAP
1 stop6h 46mAmerican Airlines
Deal found 8/12$274
This Delta deal was found by Cheapflights users on 8/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/116:27 amRAP - SAN
1 stop7h 19mDelta
Sun 9/146:15 amSAN - RAP
1 stop8h 28mDelta
Deal found 8/14$320
This United Airlines deal was found by Cheapflights users on 8/13. 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 8/295:59 pmRAP - SAN
1 stop5h 15mUnited Airlines
Tue 9/212:52 pmSAN - RAP
1 stop6h 47mUnited Airlines
Deal found 8/13$339
This United Airlines deal was found by Cheapflights users on 8/13. 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 9/123:19 pmRAP - SAN
2 stops9h 56mUnited Airlines
Sun 9/146:15 amSAN - RAP
2 stops11h 35mUnited Airlines
Deal found 8/13$349
This United Airlines deal was found by Cheapflights users on 8/12. 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.
Sat 8/3012:43 pmRAP - SAN
1 stop5h 46mUnited Airlines
Tue 9/212:52 pmSAN - RAP
1 stop6h 47mUnited Airlines
Deal found 8/12$354
This United Airlines deal was found by Cheapflights users on 8/14. 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.
Mon 8/189:42 amRAP - SAN
1 stop6h 22mUnited Airlines
Mon 8/257:00 amSAN - RAP
1 stop6h 44mUnited Airlines
Deal found 8/14$379

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated August 14, 2025.
Use the filters below to find and compare flights from Rapid City to San Diego that are best for you.

Fly from

Rapid City

Fly to

San Diego

Route

Depart

Return

Price

Rapid CitySan Diego

RAP - SAN

RAPSAN

Rapid City

Sat 8/30

12:10 pm-6:14 pm

1 stop7h 04m

San Diego

Tue 9/30

8:18 am-4:04 pm

1 stop6h 46m

$274

Rapid CitySan Diego

RAP - SAN

RAPSAN

Rapid City

Thu 9/11

6:27 am-12:46 pm

1 stop7h 19m

San Diego

Sun 9/14

6:15 am-3:43 pm

1 stop8h 28m

$320

Rapid CitySan Diego

RAP - SAN

RAPSAN

Rapid City

Thu 1/29

5:30 am-9:17 am

1 stop4h 47m

San Diego

Wed 2/4

7:00 am-2:43 pm

1 stop6h 43m

$339

Rapid CitySan Diego

RAP - SAN

RAPSAN

Rapid City

Wed 9/10

5:59 pm-10:14 pm

1 stop5h 15m

San Diego

Sun 9/14

4:03 pm-9:59 pm

1 stop4h 56m

$339

Rapid CitySan Diego

RAP - SAN

RAPSAN

Rapid City

Fri 8/29

5:59 pm-10:14 pm

1 stop5h 15m

San Diego

Tue 9/2

12:52 pm-8:39 pm

1 stop6h 47m

$339

Rapid CitySan Diego

RAP - SAN

RAPSAN

Rapid City

Fri 9/12

12:43 pm-5:29 pm

1 stop5h 46m

San Diego

Sun 9/14

6:15 am-6:50 pm

2 stops11h 35m

$344

Rapid CitySan Diego

RAP - SAN

RAPSAN

Rapid City

Thu 9/11

6:27 am-12:46 pm

1 stop7h 19m

$194

Rapid CitySan Diego

RAP - SAN

RAPSAN

Rapid City

Wed 8/27

6:25 am-12:48 pm

1 stop7h 23m

$236

Rapid CitySan Diego

RAP - SAN

RAPSAN

Rapid City

Wed 8/27

9:50 am-1:32 pm

3 stops52h 42m

$354

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/13

Best time to book a flight from Rapid City to San Diego

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

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

Currently, August is the cheapest month in which you can book a flight from Rapid City to San Diego (average of $286). Flying from Rapid City to San Diego in March is currently the most expensive (average of $366). 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.

How much does it cost to fly round-trip from Rapid City to San Diego?

Reviews of airlines servicing San Diego

Get insights into the airlines that provide service to San Diego. 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 San Diego. Reviews last updated August 14, 2025.
Read reviews from past customers who have flown Delta and United Airlines from Rapid City to San Diego. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,980 reviews

Overall

8.0

Entertainment

7.9

Boarding

8.2

Crew

8.5

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,980 reviews
Delta
8.0
Very good
7,980 reviews

Overall

8.0

Entertainment

7.9

Boarding

8.2

Crew

8.5

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,916 reviews
Delta
8.0
Very good
7,980 reviews

Overall

8.0

Entertainment

7.9

Boarding

8.2

Crew

8.5

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Rapid City to San Diego. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    Cheapflights users have booked flights from Rapid City to San Diego round-trip from $164. Another airline that can offer you cheap pricing is United Airlines. Delta is priced at 58% lower than the current average price of a flight leaving 3 months from now.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Rapid City to San Diego 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 Rapid City to San Diego?

    Currently, August is the cheapest month in which you can book a flight from Rapid City to San Diego (average of $286). Flying from Rapid City to San Diego in March is currently the most expensive (average of $366). 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 San Diego?

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

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Top 2 airlines flying from Rapid City to San Diego

Discover the top 2 airlines that operate flights from Rapid City to San Diego. 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 August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$164Average$294FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$184Average$326FlexibilityNo cancel feeOn-time69%

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