Cheap Flights from Rapid City Regional to San Diego

Compare Rapid City Regional to San Diego flight deals

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Flight deals from Rapid City Regional to San Diego

Looking for a cheap last-minute deal or the best return flight from Rapid City Regional Airport to San Diego? If you want to travel next month, return fares start from $540. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Rapid City Regional to San Diego

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Rapid City Regional to San Diego flights are currently cheapest in July.

Alternative Rapid City Regional to San Diego routes

Looking for the cheapest, fastest or easiest route from Rapid City Regional to San Diego? You could fly into the following airports instead.

Rapid City to San Diego: Flight information

The things to know before you go.
Cheapest flight found$540
Cheapest month to flyJune

Finding cheap flights from Rapid City Regional to San Diego: Frequently asked questions

There are 2 airports in San Diego: San Diego International and McClellan-Palomar.
The best price we found for a return flight from Rapid City Regional to San Diego is $540. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Rapid City Regional to San Diego. But we found flights with one or more stops from $540.
As of June 2026, there are no flights flying from Rapid City Regional to San Diego.
The cheapest month to fly from Rapid City Regional to San Diego is usually June.
If you're flying from Rapid City Regional Airport, the cheapest airport near San Diego is San Diego International – which is 4.1 km away from the centre of San Diego. We've found flights into this airport from $540.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Rapid City Regional Airport to San Diego on Tuesday, 30 June 2026.
No airlines currently offer direct flights between Rapid City Regional Airport and San Diego. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to San Diego but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to San Diego is around 40 days in advance, so don’t leave your flight to the last minute.
In June, the average temperature is usually around 19°C. August is typically the warmest month in San Diego, when it usually averages around 28°C. You can expect the least rain in June. The coldest month is December, with temperatures averaging 10°C. The rainiest month is February.
Currently, Delta offers the cheapest flight tickets to San Diego.

Travelling from Rapid City Regional Airport (RAP) to San Diego: what you need to know

  • San Diego is one hour behind Rapid City, where Rapid City Regional Airport is located. San Diego observes the UTC-8 timezone.

  • For a smooth journey, turn up at the airport two hours ahead of international flights and an hour before domestic departures. That way, you can comfortably board your RAP to San Diego flight.

  • Travelling during a peak time such as July? Major public holidays and other popular periods can mean longer queues at security. Be extra cautious and arrive up to four hours before international flights and two hours before a domestic departure.

  • Located around 14 kilometres from central Rapid City, RAP can be reached in about 15 minutes by car (depending on traffic). Travelling on public transport takes roughly 30 minutes.

  • Rapid City Regional Airport maintains a strong on-time performance, so flight disruptions are less likely. Departures from RAP land on schedule 80% of the time.

  • The address for RAP is 4550 Terminal Road, Suite 102.

How to find the cheapest flights from Rapid City Regional Airport (RAP) to San Diego

  • The lowest price we've seen for a one-way Rapid City Regional Airport to San Diego flight is $197. The cheapest price for a return flight is $540. Bear in mind fares may change due to demand at the time of booking.

  • To find cheap flights from RAP to San Diego, book in advance. Airlines generally offer lower prices when flights first go on sale.

  • The 'Whole month' tool will show you the cheapest tickets from Rapid City Regional Airport to San Diego throughout the entire month. It's an easy way to find a bargain if your travel dates are flexible.

  • Save time searching for cheap flights from RAP to San Diego by creating a Price Alert. You'll receive an email or notification on the app when a new low fare is offered.

  • Choose your preferred departure and arrival times, airlines and number of stops with our filters. Then, sort the results for your flight from Rapid City Regional Airport to San Diego by 'Best,' 'Fastest' or 'Cheapest.'

Airports in San Diego

San Diego International Airport (SAN)

  • The distance from San Diego International Airport (SAN) to central San Diego is roughly 5 kilometres. It takes about 15 minutes to get to the centre driving.

  • If you're using public transport, expect a journey time of around 25 minutes.

  • If you have a late flight from Rapid City Regional Airport to San Diego, nothing beats the convenience of staying near the terminal. Grab your bags from the carousel and then be showered and snoozing not long after at one of these hotels near SAN:

  • Reserving your vehicle from San Diego International Airport around two weeks in advance of your flight from RAP to San Diego can help you get the best possible rate.

  • You'll find SAN at N Harbour Dr.

McClellan-Palomar Airport (CLD)

  • McClellan-Palomar Airport (CLD) is about 48 kilometres from central San Diego. Check out your options for getting into town after your flight from Rapid City Regional Airport to San Diego has arrived.

  • Hang up the 'Do not disturb' sign and relax at a hotel near CLD. Here are a few options where you can check in after your RAP to San Diego flight:

  • Get the vehicle you actually want, not just what's left, by reserving your ride from CLD ahead of time. You can also avoid last-minute price surges, especially when demand is high.

Best time to go to San Diego

  • July is the most popular month for flights from Rapid City Regional Airport to San Diego. To escape the crowds, head to San Diego in December.

  • The warmest month in San Diego is August, with temperatures ranging between 16ºC and 27ºC. Lock in your Rapid City Regional Airport to San Diego plane ticket then if that's your idea of comfortable weather.

  • Search for cheap tickets from RAP to San Diego in February if you want to travel in cooler conditions. Temperatures are at their lowest then, ranging between 8ºC and 22ºC on average.

More about San Diego

  • Once you've booked your flight from Rapid City Regional Airport to San Diego, find a hotel that offers the right mix of comfort and location. Make one of these options your base for exploring San Diego:

  • San Diego Balboa Park and San Diego Zoo are just two of the top attractions to put on your San Diego must-do list. Keep the sightseeing going at USS Midway Museum.

Explore more of the United States

  • You've seen San Diego, now it's time to explore more of the United States. Travel about 177 kilometres northwest to Los Angeles to check off its top sights. From Hollywood Sign to Universal Studios Hollywood and Hollywood Bowl, you've got a jam-packed schedule ahead.

  • Phoenix is another well-known destination in the United States and is around 483 kilometres east of San Diego. No trip is complete without a visit to Camelback Mountain, Yayoi Kusama Fireflies Infinity Mirror Room and Heard Museum.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.