HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
San Diego

$279+ Cheap flights from Rapid City to San Diego (RAP - SAN)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/27. Fares are subject to change and may not be available on all flights or dates of travel.
RAP — SAN
Jan 27 — Feb 31
Tue 1/27
Tue 2/3
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Rapid City to San Diego with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 December 28, 2025.

This American Airlines deal was found by Cheapflights users on 12/26. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/305:30 amRAP - SAN
1 stop8h 14mAmerican Airlines
Thu 1/112:39 pmSAN - RAP
1 stop7h 41mAmerican Airlines
Deal found 12/26$640

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 December 28, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$279
(Delta)

Popular in

August

Cheapest in

June

Average price

$408
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
Highest demand for flights based on searches. 6% potential increase in price ($27 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 December 28, 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

Thu 2/5

6:00 am-1:58 pm

1 stop8h 58m

San Diego

Mon 2/9

6:15 am-3:25 pm

1 stop8h 10m

$279

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

$279

Rapid CitySan Diego

RAP - SAN

RAPSAN

Rapid City

Wed 1/28

10:54 am-10:31 pm

2 stops12h 37m

San Diego

Sat 1/31

6:15 am-3:25 pm

1 stop8h 10m

$284

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/26

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 December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Rapid City-San Diego flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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 $181). Flying from Rapid City to San Diego in April is currently the most expensive (average of $343). 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.

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 December 28, 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
7.9
Good
8,019 reviews

Entertainment

7.9

Crew

8.5

Overall

7.9

Comfort

7.9

Boarding

8.1

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
7.9
Good
8,019 reviews
Delta
7.9
Good
8,019 reviews

Entertainment

7.9

Crew

8.5

Overall

7.9

Comfort

7.9

Boarding

8.1

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
9,113 reviews
Delta
7.9
Good
8,019 reviews

Entertainment

7.9

Crew

8.5

Overall

7.9

Comfort

7.9

Boarding

8.1

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.

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

    Airlines like Delta fly from Rapid City to San Diego in about 8h 58m. The time it takes to get you to your destination can typically vary by up to . Rapid City and San Diego are separated by a distance of 1090 mi.

  • 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 $189. Another airline that can offer you cheap pricing is Delta. United Airlines is priced at 49% 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 $181). Flying from Rapid City to San Diego in April is currently the most expensive (average of $343). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Rapid City to San Diego

See prices for flight routes from nearby airports that may be better suited for you.
Sioux Falls to Las Vegas flights
Sioux Falls to Los Angeles flights
Sioux Falls to Ontario flights
Sioux Falls to Palm Springs flights
Sioux Falls to San Diego flights
Sioux Falls to Santa Ana flights
Rapid City to Los Angeles flights
Sioux Falls to Reno flights
Rapid City to San Francisco flights
Rapid City to Las Vegas flights
Sioux Falls to Sacramento flights
Aberdeen to Las Vegas flights
Sioux Falls to Burbank flights
Rapid City to Palm Springs flights
Sioux Falls to San Francisco flights
Sioux Falls to Fresno flights
Sioux Falls to Long Beach flights
Sioux Falls to Monterey flights
Sioux Falls to Medford flights
Rapid City to Sacramento flights
Rapid City to Ontario flights
Pierre to San Diego flights
Sioux Falls to Santa Barbara flights
Rapid City to Santa Ana flights
Sioux Falls to San Jose flights
Rapid City to Long Beach flights
Rapid City to Burbank flights
Pierre to Santa Ana flights
Rapid City to San Jose flights
Sioux Falls to Bakersfield flights
Sioux Falls to Oakland flights
Rapid City to Oakland flights
Rapid City to Yuma flights

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 December 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$189Average$277FlexibilityNo cancel feeOn-time69%
DeltaCheapest$258Average$294FlexibilityNo cancel feeOn-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.