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$155+ Cheap flights from Rapid City to San Francisco (RAP - SFO)

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 9/10. Fares are subject to change and may not be available on all flights or dates of travel.
RAP — SFO
Aug 21 — Aug 281
Thu 8/21
Thu 8/28
1 adult, Economy
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Cheap flight deals from Rapid City to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from Rapid City (RAP) to San Francisco (SFO). 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 16, 2025.

Round-trip from

$289
(United Airlines)

One-way from

$155
(American Airlines)

Popular in

June

Cheapest in

January

Average price

$438
From Rapid City to San Francisco
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One-way flight from Rapid City to San Francisco
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Highest demand for flights based on searches. 2% potential increase in price ($11 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($9 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 Francisco

Cheapest flights from Rapid City to San Francisco
Explore the most affordable flight options available from Rapid City to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 16, 2025.

This United Airlines deal was found by Cheapflights users on 8/15. 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 - SFO
1 stop7h 59mUnited Airlines
Wed 9/34:28 pmSFO - RAP
1 stop4h 31mUnited Airlines
Deal found 8/15$289
This Delta deal was found by Cheapflights users on 8/15. 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.
Mon 11/310:33 amRAP - SFO
1 stop7h 51mDelta
Tue 11/186:15 amSFO - RAP
1 stop6h 25mDelta
Deal found 8/15$324
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/184:58 pmRAP - SFO
1 stop7h 30mAmerican Airlines
Thu 10/2310:20 amSFO - RAP
2 stops10h 30mAmerican Airlines
Deal found 8/14$344
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.
Sat 10/186:05 amRAP - SFO
1 stop8h 25mDelta
Wed 10/2212:35 amSFO - RAP
1 stop8h 18mDelta
Deal found 8/14$374
This American Airlines deal was found by Cheapflights users on 8/15. 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.
Fri 8/1512:10 pmRAP - SFO
2 stops9h 41mAmerican Airlines
Fri 8/225:45 amSFO - RAP
1 stop9h 23mAmerican Airlines
Deal found 8/15$384
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.
Tue 9/305:50 pmRAP - SFO
1 stop6h 07mUnited Airlines
Fri 10/32:33 pmSFO - RAP
1 stop5h 01mUnited Airlines
Deal found 8/13$389
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 12/298:35 amRAP - SFO
1 stop24h 05mUnited Airlines
Tue 1/132:39 pmSFO - RAP
1 stop4h 54mUnited Airlines
Deal found 8/14$423

Cheapflights Fare Finder

 
Customize your flight search to find flights from Rapid City to San Francisco 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 16, 2025.
Use the filters below to find and compare flights from Rapid City to San Francisco that are best for you.

Fly from

Rapid City

Fly to

San Francisco

Route

Depart

Return

Price

Rapid CitySan Francisco

RAP - SFO

RAPSFO

Rapid City

Sat 8/30

12:43 pm-7:42 pm

1 stop7h 59m

San Francisco

Wed 9/3

4:28 pm-9:59 pm

1 stop4h 31m

$289

Rapid CitySan Francisco

RAP - SFO

RAPSFO

Rapid City

Mon 11/3

10:33 am-5:24 pm

1 stop7h 51m

San Francisco

Tue 11/18

3:00 pm-10:10 pm

1 stop6h 10m

$324

Rapid CitySan Francisco

RAP - SFO

RAPSFO

Rapid City

Sat 10/18

6:05 am-1:30 pm

1 stop8h 25m

San Francisco

Thu 10/23

5:45 am-3:50 pm

1 stop9h 05m

$324

Rapid CitySan Francisco

RAP - SFO

RAPSFO

Rapid City

Sat 10/18

4:58 pm-11:28 pm

1 stop7h 30m

San Francisco

Thu 10/23

10:20 am-9:50 pm

2 stops10h 30m

$344

Rapid CitySan Francisco

RAP - SFO

RAPSFO

Rapid City

Tue 9/30

5:50 pm-10:57 pm

1 stop6h 07m

San Francisco

Fri 10/3

2:33 pm-8:34 pm

1 stop5h 01m

$389

Rapid CitySan Francisco

RAP - SFO

RAPSFO

Rapid City

Wed 9/10

5:00 pm-11:15 pm

1 stop7h 15m

$155

Rapid CitySan Francisco

RAP - SFO

RAPSFO

Rapid City

Fri 9/19

3:40 pm-1:15 pm

2 stops22h 35m

$162

Rapid CitySan Francisco

RAP - SFO

RAPSFO

Rapid City

Tue 9/16

11:18 am-5:23 pm

1 stop7h 05m

$178

Rapid CitySan Francisco

RAP - SFO

RAPSFO

Rapid City

Thu 9/18

5:39 pm-9:21 pm

1 stop28h 42m

$184

Rapid CitySan Francisco

RAP - SFO

RAPSFO

Rapid City

Wed 9/10

6:25 am-5:17 pm

2 stops11h 52m

$185

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/14

Showing 1-10 of 12 results
1
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Best time to book a flight from Rapid City to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco 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 Francisco

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

Currently, January is the cheapest month in which you can book a flight from Rapid City to San Francisco (average of $276). Flying from Rapid City to San Francisco in June is currently the most expensive (average of $358). 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.

What is the cheapest time of day to fly from RAP to SFO?

Find hourly flight availability from Rapid City to San Francisco. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 16, 2025.

It’s typically best to fly out from Rapid City to San Francisco in the afternoon. Doing so could potentially save you 20% on the flight price compared to flying at noon, which is usually more expensive.

Reviews of airlines servicing San Francisco

Get insights into the airlines that provide service to San Francisco. 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 Francisco. Reviews last updated August 16, 2025.
See what other customers who have flown with Delta and United Airlines from Rapid City to San Francisco have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,985 reviews

Overall

8.0

Food

7.3

Entertainment

7.9

Boarding

8.2

Crew

8.5

Comfort

7.9

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
7,985 reviews
Delta
8.0
Very good
7,985 reviews

Overall

8.0

Food

7.3

Entertainment

7.9

Boarding

8.2

Crew

8.5

Comfort

7.9

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
7,985 reviews

Overall

8.0

Food

7.3

Entertainment

7.9

Boarding

8.2

Crew

8.5

Comfort

7.9

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 Francisco. 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 Francisco round-trip?

    Our cheapest airline available from Rapid City to San Francisco is Delta. Our recent data shows that you can find tickets from as low as $179 on this airline. An additional option worth looking into is United Airlines, starting at $259. Delta is currently priced 55% below the average price you’ll pay for this route.

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

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

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

    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 Francisco.

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

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

    Currently, January is the cheapest month in which you can book a flight from Rapid City to San Francisco (average of $276). Flying from Rapid City to San Francisco in June is currently the most expensive (average of $358). 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 Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Roseville
Santa Cruz
Livermore
South San Francisco
Mountain View
Turlock
Santa Clara
Hollister
Antioch
Watsonville
Manteca
Sunnyvale
Newark
Milpitas
Campbell
Foster City
San Leandro
Burlingame
Redwood City
Vallejo

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Top 2 airlines flying from Rapid City to San Francisco

Discover the top 2 airlines that operate flights from Rapid City to San Francisco. 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 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$179Average$329FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$259Average$375FlexibilityNo cancel feeOn-time69%

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