PHL - RAP

$129 Find Cheap Flights from Philadelphia to Rapid City

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Philadelphia to Rapid City departing on 4/28. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Rapid City

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Philadelphia to Rapid City, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Philadelphia to Rapid City, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$339
Typical prices: $675-$388
Delta
Fri 5/8Tue 5/12
PHL - RAP • 1 stop
Cheapest one-way
$129
Multiple Airlines
Tue 4/28
PHL - RAP • 2 stops
Top airlines
Cheapest • from $339 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Philadelphia and Rapid City. You'll need at least 1 connection.
Insights
Insights
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Insights
Top layover airports
Cheapest • Avg $510 (round-trip)
Shortest trip • 5h 55m (one-way)
Insights
Insights
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Insights
When to book
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 9% compared to booking last minute.
Insights
Insights
Insights
Insights
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Rapid City!
Flight Deals
Booking Insights
Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Philadelphia to Rapid City that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Philadelphia to Rapid City

Fri, May 8 - Tue, May 12
Delta Logo
7:01 pm - 10:23 pm
PHL
-
RAP
5h 22m
1 stop
Delta Logo
2:36 pm - 11:12 pm
RAP
-
PHL
6h 36m
1 stop
$339Delta
Fri, May 8 - Tue, May 12
Delta Logo
7:01 pm - 10:23 pm
PHL
-
RAP
5h 22m
1 stop
Delta Logo
2:36 pm - 12:57 am
RAP
-
PHL
8h 21m
2 stops
$344Delta
Fri, May 8 - Tue, May 12
Delta Logo
7:01 pm - 10:23 pm
PHL
-
RAP
5h 22m
1 stop
Delta Logo
2:36 pm - 11:12 pm
RAP
-
PHL
6h 36m
1 stop
$349Delta
Fri, May 8 - Tue, May 12
Delta Logo
7:01 pm - 10:23 pm
PHL
-
RAP
5h 22m
1 stop
Delta Logo
2:36 pm - 12:57 am
RAP
-
PHL
8h 21m
2 stops
$354Delta
Fri, May 8 - Tue, May 12
Delta Logo
7:01 pm - 10:23 pm
PHL
-
RAP
5h 22m
1 stop
Delta Logo
2:36 pm - 11:12 pm
RAP
-
PHL
6h 36m
1 stop
$359Delta
Fri, May 8 - Tue, May 12
Delta Logo
7:01 pm - 10:23 pm
PHL
-
RAP
5h 22m
1 stop
Delta Logo
2:36 pm - 12:57 am
RAP
-
PHL
8h 21m
2 stops
$364Delta
Fri, May 8 - Tue, May 12
Delta Logo
7:01 pm - 10:23 pm
PHL
-
RAP
5h 22m
1 stop
Delta Logo
2:36 pm - 12:57 am
RAP
-
PHL
8h 21m
2 stops
$369Delta
Wed, Aug 26 - Tue, Sep 1
United Airlines Logo
11:30 am - 7:25 pm
PHL
-
RAP
9h 55m
2 stops
United Airlines Logo
1:33 pm - 9:21 pm
RAP
-
PHL
5h 48m
1 stop
$374United Airlines
Sun, Aug 30 - Sat, Sep 5
Delta Logo
5:30 am - 3:10 pm
PHL
-
RAP
11h 40m
2 stops
Delta Logo
10:40 am - 1:01 am
RAP
-
PHL
12h 21m
2 stops
$379Delta
Sun, Aug 30 - Sat, Sep 5
Delta Logo
6:15 am - 9:58 am
PHL
-
RAP
5h 43m
1 stop
Delta Logo
10:40 am - 1:01 am
RAP
-
PHL
12h 21m
2 stops
$389Delta
Booking Insights

KAYAK's insights & trends for Philadelphia to Rapid City flights

Get data-powered insights and trends into flights from Philadelphia to Rapid City to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Philadelphia to Rapid City?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Philadelphia to Rapid City departing in May.

How far in advance should I book a flight from Philadelphia to Rapid City?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Philadelphia to Rapid City, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Philadelphia to Rapid City, you should book around 3 weeks before departure, which saves you about 9% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 13 weeks before departure.

Good to know

Low seasonApril
Cheapest flight$129
Best time to beat the crowds with an average 36% drop in price.
Most popular time to fly with an average 1% increase in price.
Flight from Philadelphia to Rapid City

When to book flights from Philadelphia to Rapid City

Are your dates flexible? Find out the best times to travel from Philadelphia to Rapid City based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Philadelphia to Rapid City

  • What is the cheapest flight from Philadelphia to Rapid City?

    In the last 3 days, the lowest price for a flight from Philadelphia to Rapid City was $129 for a one-way ticket and $339 for a round-trip.

  • Do I need a passport to fly between Philadelphia and Rapid City?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which airports will I be using when flying from Philadelphia to Rapid City?

    On your way to Rapid City, you’ll fly out from Philadelphia. You’ll be landing at Rapid City.

  • Which aircraft models fly most regularly from Philadelphia to Rapid City?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Philadelphia to Rapid City?

    Star Alliance, oneworld, and SkyTeam are the airline alliances operating flights between Philadelphia and Rapid City, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from Philadelphia to Rapid City, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Philadelphia to Rapid City are Delta and United Airlines. With an average price for the route of $445 and an overall rating of 7.9, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $493 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Philadelphia to Rapid City?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Philadelphia to Rapid City.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Philadelphia to Rapid City?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Rapid City from Philadelphia is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Philadelphia to Rapid City?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Rapid City with an airline and back to Philadelphia with another airline. Booking your flights between Philadelphia and RAP can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Philadelphia to Rapid City?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Rapid City from Philadelphia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from Philadelphia to Rapid City

 
See real verified KAYAK customer reviews for airlines flying from Philadelphia to Rapid City. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Philadelphia to Rapid City? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8398 reviews
8.5Crew
7.9Comfort
7.8Entertainment
8.1Boarding
7.2Food
Airline reviews

The crew bent over backwards to thank us for flying and make us comfortable. The food service was quick and efficient. The Captain communicated and said goodbye and thank you as we departed. They really stood out!

10.0 ExcellentKathryn, Apr 2026
JFK - LAX
Read more Delta reviews

The crew bent over backwards to thank us for flying and make us comfortable. The food service was quick and efficient. The Captain communicated and said goodbye and thank you as we departed. They really stood out!

Okay considering we had weather delays which the Pilot notified us of immediately!

Generally on time departures and arrivals, clean planes, sky miles membership provides great benefits (complimentary upgrades, etc).

Flight from Fort Wayne to Atlanta was the smallest in terms of cabin space that I've ever seen. A carry on I've used for 20 years BARELY fit in overhead compartment. I'm 5'10" and felt very cramped. Not the best experience.

I am writing to express my dissatisfaction with the poor service and unprofessional staff we encountered when traveling with an infant. Our flight was delayed, and the gate staff failed to manage the boarding process appropriately. Due to incorrect, unavailable, or missing 'pink tag' stroller and car seat check-in procedures at the gate, we were forced to board last. Furthermore, the gate staff was rude and dismissive, causing significant distress to our infant. To make matters worse, one of our checked items—an infant sleeper/lounger—was returned to us broken. Given the unsafe handling of essential equipment and unprofessional treatment, I expect a prompt resolution regarding compensation for the damaged items.

We departed and landed early which was a nice surprise. The boarding process was slow.

N Everything was perfect from boarding to assistance to baggage in Tampa

Subpar. The seating on the plane is almost unbearable. We are literally touching and/or sitting on each other which is totally unacceptable and shameful. Pilots and crew was very accommodating and friendly.

The boarding was organized and informative but the plane was tight meaning that you were sitting on one another and extremely uncomfortable. It’s disappointing that can’t have common seating comfort on the plane.

Loved the crew! Sucks that we went from 1 hour and 8 minute layover to a 3 hour layover. But weather sucks like that.

It was better than excellent. The staff in Mason City were great. The young woman that pushed my wheelchair did more than could be expected of her. She came from India 17 years ago. I don't remember her name.

After arriving in Chicago, we were taxiing for 1.5 hours with infrequent and untruthful updates about the amount of time it would take to arrive at the gate. Minimally, the team could have provided timing expectations that were more truthful, especially one their original expectations were not met.

Flights were on time actually early service was good and crew cheerful

Every staff member was professional, friendly and courteous. The pizza twist was ok. It was warm but too much dough.

I had a terrible experience. My flight got delayed from Atlanta to Chicago on Monday April 6, 2026, and that led to me missing my next flight to Brussels. United Airlines didn’t provide me with any accommodation for shelter. I had to sleep at the airport in Chicago. The next flight I was put on didn’t leave until the evening hours of Tuesday 4/7/2026.

Boarding was again a "free for all". We were boarding group 4, and almost the entire plane was able to board before us. It's a shame that someone who follows the rules, gets the short end of the stick. Not fair.

Flight left on time, arrived early, pleasant staff provided water, coffee, etc. access to bathrooms was reasonable and were well maintained. blankets were available, lots of entertainment options. LUGGAGE SERVICE WAS GREAT. I got my one checked bag quickly and was able to make a bus connection for a 2 hour bus ride saving me from waiting another 1.5 hours.

The boarding process was straightforward. One pertinent observation regarding all boarding procedures is that if an individual requires assistance or possesses a special status and is part of preboarding, it is advisable to limit the number of passengers who can preboard with them, rather than the entire, sometimes large, companion groups. The seats are uncomfortable, and the entertainment options are significantly inferior compared to other airlines. During the snack service, I requested an additional bag of snacks, but my request was denied. Initially, the flight attendant agreed to my request.becoming a strange accurate moment. The flight duration was four hours.

The flight was officially delayed 3 times, and was actually later than that. Combined, it was a 3 hour delay, but there was no recognition (miles, voucher, etc). The crew seemed stressed. The captain sounded nervous in his announcements. The flight itself was smooth and uneventful.

United didn’t even try to hold the flight for me. They knew I had a tight connection and when I arrived at the gate less than 10 mins after final boarding the flight had already gone. The gate agent wasn’t even notified that I was on my way. She was told I wasn’t at the airport

Plane was super cold. No entertainment unless you were with mileage program Getting off the plane was super slow

I appreciate that I finally got the seat I paid extra for this time. Thank you

Half of the TSA checkpoints at PHL are closed. Also, there is no standby for first class passengers. You can only standby for coach. Very dated policy and inconsistent with peers.

It would have been nice if American tried to care.

Delayed initially because they couldn’t print the flight details. Poor instruction on delay. When I got on the plane the flight attendant argued with me about whether my carry on would fit (it did, although she didn’t acknowledge that). No greeting (other than arguing with me) getting on or off the plane.

Beverage service was not good. Also just one service in 5 hr 30 min flight. No ask fir water ir anything beside one time beverage service.

They are always late and seats was also not having working charger

This flight captain and crew were amazing, started ahead of time of departure and reached 30 mins before arrival time. Amazing!

Long delays, lack of information about the status of the flight. The flight was delayed 4 times.

Everything about the flight was lovely. My only suggestion would be to offer a few more options of tv series from Apple TV or HBO.

Everything you need to know for your flight from Philadelphia to Rapid City

Information on your arrival and departure airports