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$123+ 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 5/3. Fares are subject to change and may not be available on all flights or dates of travel.
RAP — SAN
abr. 29 — may. 61
mié. 4/29
mié. 5/6
1 adult, Economy
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Cheap 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 marzo 30, 2026.

This Kiwi.com deal was found by Cheapflights users on 3/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 4/1711:22 am
RAP
-
SAN
1 stop28h 02m
Multiple Airlines
jue. 4/237:23 pm
SAN
-
RAP
1 stop14h 19m
Multiple Airlines
Deal found 3/28$338
This United Airlines deal was found by Cheapflights users on 3/25. 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.
vie. 4/174:15 pm
RAP
-
SAN
1 stop6h 07m
United Airlines
lun. 4/276:32 am
SAN
-
RAP
1 stop5h 36m
United Airlines
Deal found 3/25$339
This United Airlines deal was found by Cheapflights users on 3/26. 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.
vie. 4/245:20 am
RAP
-
SAN
1 stop4h 56m
United Airlines
lun. 4/2711:01 am
SAN
-
RAP
2 stops8h 43m
United Airlines
Deal found 3/26$344
This United Airlines deal was found by Cheapflights users on 3/30. 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.
sáb. 4/1810:55 am
RAP
-
SAN
1 stop7h 21m
United Airlines
sáb. 4/2512:40 pm
SAN
-
RAP
1 stop7h 24m
United Airlines
Deal found 3/30$354
This Delta deal was found by Cheapflights users on 3/25. 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.
vie. 4/173:55 pm
RAP
-
SAN
2 stops8h 47m
Delta
lun. 4/277:45 pm
SAN
-
RAP
2 stops13h 32m
Delta
Deal found 3/25$364
This United Airlines deal was found by Cheapflights users on 3/26. 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.
vie. 4/102:47 pm
RAP
-
SAN
1 stop7h 35m
United Airlines
mar. 4/144:09 pm
SAN
-
RAP
1 stop5h 19m
United Airlines
Deal found 3/26$369
This United Airlines deal was found by Cheapflights users on 3/30. 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.
mié. 6/175:00 am
RAP
-
SAN
1 stop5h 05m
United Airlines
lun. 6/226:35 am
SAN
-
RAP
1 stop4h 54m
United Airlines
Deal found 3/30$371
This Delta deal was found by Cheapflights users on 3/25. 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.
jue. 4/94:01 pm
RAP
-
SAN
1 stop8h 39m
Delta
lun. 4/137:45 pm
SAN
-
RAP
2 stops13h 32m
Delta
Deal found 3/25$374
This Delta deal was found by Cheapflights users on 3/27. 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.
dom. 8/92:25 pm
RAP
-
SAN
1 stop8h 36m
Delta
dom. 8/166:20 am
SAN
-
RAP
1 stop6h 28m
Delta
Deal found 3/27$375
This Delta deal was found by Cheapflights users on 3/26. 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.
vie. 4/104:01 pm
RAP
-
SAN
2 stops8h 43m
Delta
mar. 4/1410:10 pm
SAN
-
RAP
2 stops11h 07m
Delta
Deal found 3/26$379

Find 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 marzo 30, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$338
(Kiwi.com)

One-way from

$123
(Kiwi.com)

Popular in

March

Cheapest in

June

Average price

$722
Provider with most accurate pricing for Rapid City-San Diego flight deals.
Search Deals
Provider most trusted by Cheapflights users for Rapid City-San Diego flights.
Search Deals
From Rapid City to San Diego
Search Deals
One-way flight from Rapid City to San Diego
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($123 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($27 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

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 marzo 30, 2026.
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

Cheapest round-trip

Rapid CitySan Diego

RAP - SAN

RAPSAN

Rapid City

jue. 5/7

6:50 am-1:17 pm

1 stop7h 27m

San Diego

lun. 5/11

6:30 am-3:48 pm

1 stop8h 18m

$339

Rapid CitySan Diego

RAP - SAN

RAPSAN

Rapid City

sáb. 4/18

12:00 pm-8:12 pm

2 stops9h 12m

San Diego

lun. 4/27

6:32 am-1:08 pm

1 stop5h 36m

$344

Rapid CitySan Diego

RAP - SAN

RAPSAN

Rapid City

vie. 4/24

5:20 am-9:16 am

1 stop4h 56m

San Diego

lun. 4/27

11:01 am-8:44 pm

2 stops8h 43m

$344

Rapid CitySan Diego

RAP - SAN

RAPSAN

Rapid City

sáb. 4/18

4:15 pm-12:29 am

2 stops9h 14m

San Diego

sáb. 4/25

4:09 pm-10:28 pm

1 stop5h 19m

$359

Rapid CitySan Diego

RAP - SAN

RAPSAN

Rapid City

vie. 4/17

3:55 pm-11:42 pm

2 stops8h 47m

San Diego

lun. 4/27

7:45 pm-10:17 am

2 stops13h 32m

$364

Rapid CitySan Diego

RAP - SAN

RAPSAN

Rapid City

mar. 4/14

12:00 pm-8:12 pm

2 stops9h 12m

San Diego

sáb. 4/18

4:09 pm-10:28 pm

1 stop5h 19m

$374
Quickest round-trip

Rapid CitySan Diego

RAP - SAN

RAPSAN

Rapid City

mié. 5/6

4:13 pm-10:16 pm

1 stop7h 03m

San Diego

sáb. 5/9

6:32 am-1:09 pm

1 stop5h 37m

$429

Rapid CitySan Diego

RAP - SAN

RAPSAN

Rapid City

mar. 8/25

10:13 am-6:35 pm

2 stops9h 22m

San Diego

sáb. 8/29

12:33 pm-8:32 pm

1 stop6h 59m

$434
Cheapest one-way

Rapid CitySan Diego

RAP - SAN

RAPSAN

Rapid City

dom. 5/3

5:57 pm-5:56 pm

1 stop24h 59m

$123
Quickest one-way

Rapid CitySan Diego

RAP - SAN

RAPSAN

Rapid City

mar. 4/28

7:00 am-12:52 pm

1 stop6h 52m

$236

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/29

Showing 1-10 of 12 resultsSorted by cheapest first
1
2

Compare providers for flights from Rapid City to San Diego

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Rapid City to San Diego in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Rapid City-San Diego flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Rapid City-San Diego flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Rapid City-San Diego flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Rapid City-San Diego flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Rapid City-San Diego flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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, June is the cheapest month in which you can book a flight from Rapid City to San Diego (average of $182). Flying from Rapid City to San Diego in March is currently the most expensive (average of $375). 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 marzo 30, 2026.
Read reviews from past customers who have flown 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.
United Airlines
7.4
Good
9,514 reviews

Food

6.6

Overall

7.4

Comfort

7.3

Boarding

7.7

Entertainment

7.1

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
United Airlines
7.4
Good
9,514 reviews
United Airlines
7.4
Good
9,514 reviews

Food

6.6

Overall

7.4

Comfort

7.3

Boarding

7.7

Entertainment

7.1

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

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.

  • How long is the flight from Rapid City to San Diego?

    Airlines like Delta and United Airlines fly from Rapid City to San Diego in about 7h 27m. The time it takes to get you to your destination can typically vary by up to 1h 45m. Rapid City and San Diego are separated by a distance of 1090 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What is the cheapest airline to fly from Rapid City to San Diego round-trip?

    Cheapflights users have booked flights from Rapid City to San Diego round-trip from $278. United Airlines is priced at 37% 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, June is the cheapest month in which you can book a flight from Rapid City to San Diego (average of $182). Flying from Rapid City to San Diego in March is currently the most expensive (average of $375). 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
National City
Coronado
La Mesa
Poway
Julian
Lemon Grove

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Top airline flying from Rapid City to San Diego

Discover the top airline 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 marzo 30, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$278Average$432FlexibilityNo cancel feeOn-time69%

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