$162 Cheap Flights from Philadelphia (PHL) to Rapid City (RAP)

View $162 flight on Mon, Aug 31, 2026Opens in a new window

Popular airlines from Philadelphia Intl. Airport (PHL) to Rapid City Regional Airport (RAP)

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Cheap Flights from Philadelphia to Rapid City (PHL-RAP)

Prices were available within the past 7 days and start at $162 for one-way flights and $269 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Fri, Dec 12 - Tue, Dec 16
PHL
Philadelphia
RAP
Rapid City
$269 Roundtrip, found 1 hour ago
$269
Roundtrip
found 1 hour ago
Select American Airlines flight, departing Fri, Dec 12 from Philadelphia to Rapid City, returning Tue, Dec 16, priced at $269 found 1 hour ago
Delta
Tue, Apr 7 - Tue, Apr 21
PHL
Philadelphia
RAP
Rapid City
$274 Roundtrip, found 14 hours ago
$274
Roundtrip
found 14 hours ago
Select Delta flight, departing Tue, Apr 7 from Philadelphia to Rapid City, returning Tue, Apr 21, priced at $274 found 14 hours ago
United
Wed, Jan 14 - Sat, Jan 17
PHL
Philadelphia
RAP
Rapid City
$283 Roundtrip, found 5 days ago
$283
Roundtrip
found 5 days ago
Select United flight, departing Wed, Jan 14 from Philadelphia to Rapid City, returning Sat, Jan 17, priced at $283 found 5 days ago
United
Wed, Jan 14 - Sat, Jan 17
PHL
Philadelphia
RAP
Rapid City
$288 Roundtrip, found 5 days ago
$288
Roundtrip
found 5 days ago
Select United flight, departing Wed, Jan 14 from Philadelphia to Rapid City, returning Sat, Jan 17, priced at $288 found 5 days ago
United
Sat, Feb 7 - Fri, Feb 13
PHL
Philadelphia
RAP
Rapid City
$290 Roundtrip, found 5 days ago
$290
Roundtrip
found 5 days ago
Select United flight, departing Sat, Feb 7 from Philadelphia to Rapid City, returning Fri, Feb 13, priced at $290 found 5 days ago
United
Fri, Jan 23 - Fri, Jan 30
PHL
Philadelphia
RAP
Rapid City
$291 Roundtrip, found 1 day ago
$291
Roundtrip
found 1 day ago
Select United flight, departing Fri, Jan 23 from Philadelphia to Rapid City, returning Fri, Jan 30, priced at $291 found 1 day ago
Delta
Sat, Apr 25 - Sat, May 9
PHL
Philadelphia
RAP
Rapid City
$294 Roundtrip, found 12 hours ago
$294
Roundtrip
found 12 hours ago
Select Delta flight, departing Sat, Apr 25 from Philadelphia to Rapid City, returning Sat, May 9, priced at $294 found 12 hours ago
United
Wed, Jan 14 - Sat, Jan 17
PHL
Philadelphia
RAP
Rapid City
$294 Roundtrip, found 5 days ago
$294
Roundtrip
found 5 days ago
Select United flight, departing Wed, Jan 14 from Philadelphia to Rapid City, returning Sat, Jan 17, priced at $294 found 5 days ago
United
Thu, Jan 8 - Mon, Jan 19
PHL
Philadelphia
RAP
Rapid City
$296 Roundtrip, found 3 days ago
$296
Roundtrip
found 3 days ago
Select United flight, departing Thu, Jan 8 from Philadelphia to Rapid City, returning Mon, Jan 19, priced at $296 found 3 days ago
Delta
Sat, Apr 4 - Tue, Apr 7
PHL
Philadelphia
RAP
Rapid City
$299 Roundtrip, found 14 hours ago
$299
Roundtrip
found 14 hours ago
Select Delta flight, departing Sat, Apr 4 from Philadelphia to Rapid City, returning Tue, Apr 7, priced at $299 found 14 hours ago

Find the cheapest month to fly from Philadelphia (PHL) to Rapid City (RAP)

September is typically the cheapest month to fly

From $268 - $517 per traveler.

Alternative airports near Rapid City

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Rapid City Regional RAP. Cheapest and Closest option available. Average driving time to city center is 16 minutes. Flights from $304
RAP
Rapid City Regional
CheapestClosest
Average driving time to city center16 min
Flights from $304

Frequently asked questions

How much does a flight from Philadelphia Intl. Airport (PHL) to Rapid City Regional Airport (RAP) cost?
Snag a cheap one-way flight from $162 or cheap return flight from $269 from Philadelphia Intl. Airport (PHL) to Rapid City Regional Airport (RAP) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Philadelphia Intl. Airport (PHL) to Rapid City Regional Airport (RAP)?
Flying in December is a good way to save, as it's the cheapest month for flights between PHL and RAP. You'll usually find the lowest prices during the off-season.
What is the cheapest airline that flies from Philadelphia Intl. Airport (PHL) to Rapid City Regional Airport (RAP)?
Use the filter tool on Expedia to compare airlines and find the most affordable carrier that'll take you from PHL to RAP. Then, sort your results by "Price (lowest to highest)" to snap up a good deal.
How many flights per day from Philadelphia Intl. Airport (PHL) to Rapid City Regional Airport (RAP)?
There are no daily direct flights available from Philadelphia Intl. Airport (PHL) to Rapid City Regional Airport (RAP). But you can choose flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be on your way in no time.
What day of the week has the most flights from PHL to RAP?
You'll usually find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can change from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Philadelphia Intl. Airport (PHL) to Rapid City Regional Airport (RAP)?
To avoid potential delays on the Philadelphia Intl. Airport (PHL) to Rapid City Regional Airport (RAP) route, travel before 3 PM. Later flights have a 22% higher chance of being canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Philadelphia Intl. Airport (PHL) to Rapid City Regional Airport (RAP) last-minute?
Last-minute fares from PHL to RAP are generally more expensive. To secure the best prices, start looking for flights ahead of time. That said, if you can play around with your travel dates, you may score a cheap ticket right before your journey.
Is it cheaper to book a PHL to RAP flight and hotel package?
You can save money by securing a PHL to RAP flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one place. After selecting your ideal accommodations and flights, consider adding extras like tours, car rentals and activities.
Can I cancel or change the date of my flight from Philadelphia Intl. Airport (PHL) to Rapid City Regional Airport (RAP)?
In most cases, you're able to reschedule or cancel your PHL to RAP flight. However, additional charges may apply, especially if your booking was made more than 24 hours ago. Double-check your itinerary for the airline's fees and policies on flight changes, or if you'd like further details, visit our Customer Service portal.

Travel information

Origin airport
Philadelphia Intl.
Destination airport
Rapid City Regional
Airlines serving
American Airlines, Delta, United
Roundtrip price
$268
Distance
1450 mi

Book with confidence

Philadelphia to Rapid City Flights

The cheapest times to fly from Philadelphia to Rapid City

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Philadelphia to Rapid City are during the month of December. You can find some of the cheapest flights from Philadelphia to Rapid City with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Philadelphia to Rapid City

Sunday is one of the best days to book for cheap flights from Philadelphia to Rapid City: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Philadelphia to Rapid City

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Philadelphia to Rapid City in 2025. You can also book with separate airlines for your outbound and return journeys, from $162 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Philadelphia to Rapid City flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Philadelphia to Rapid City airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Philadelphia to Rapid City Flights

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*Available to One Key members.