$141 Find Cheap Flights from Philadelphia to Saint Croix

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 Saint Croix departing on 1/15. 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 Saint Croix

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Philadelphia to Saint Croix, 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 Saint Croix, as well as popular online travel agencies
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Flight Deals

Book Cheap Philadelphia to Saint Croix Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Philadelphia to Saint Croix 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 Saint Croix

Sat, Jan 24 - Sat, Jan 31
Spirit Airlines Logo
8:20 am - 3:43 pm
PHL
-
STX
6h 23m1 stop
Spirit Airlines Logo
4:38 pm - 11:50 pm
STX
-
PHL
8h 12m1 stop
$199Spirit Airlines
Sat, Jan 24 - Sat, Jan 31
Multiple Airlines Logo
9:04 pm - 3:43 pm
PHL
-
STX
41h 39m2 stops
Multiple Airlines Logo
4:38 pm - 12:30 am
STX
-
PHL
8h 52m1 stop
$284Multiple Airlines
Tue, Apr 14 - Tue, Apr 21
JetBlue Logo
12:00 pm - 4:30 pm
PHL
-
STX
28h 30m1 stop
JetBlue Logo
5:25 pm - 11:05 am
STX
-
PHL
17h 40m1 stop
$314JetBlue
Fri, Apr 24 - Fri, May 1
Spirit Airlines Logo
6:15 am - 2:40 pm
PHL
-
STX
8h 25m1 stop
Spirit Airlines Logo
3:37 pm - 11:59 pm
STX
-
PHL
8h 22m1 stop
$323Spirit Airlines
Fri, Apr 24 - Fri, May 1
Spirit Airlines Logo
6:15 am - 2:40 pm
PHL
-
STX
8h 25m1 stop
Spirit Airlines Logo
3:37 pm - 11:59 pm
STX
-
PHL
8h 22m1 stop
$333Spirit Airlines
Thu, Jan 1 - Sat, Jan 10
Multiple Airlines Logo
7:00 am - 2:35 pm
PHL
-
STX
30h 35m2 stops
Multiple Airlines Logo
4:38 pm - 11:50 pm
STX
-
PHL
8h 12m1 stop
$337Multiple Airlines
Sun, Feb 1 - Fri, Mar 6
Multiple Airlines Logo
6:11 pm - 3:43 pm
PHL
-
STX
20h 32m1 stop
Multiple Airlines Logo
4:37 pm - 12:13 pm
STX
-
PHL
20h 36m1 stop
$340Multiple Airlines
Thu, Feb 26 - Mon, Mar 2
Spirit Airlines Logo
8:00 pm - 3:40 pm
PHL
-
STX
18h 40m2 stops
Spirit Airlines Logo
4:37 pm - 11:50 pm
STX
-
PHL
8h 13m1 stop
$344Spirit Airlines
Sun, Feb 1 - Fri, Mar 6
Multiple Airlines Logo
8:43 pm - 3:43 pm
PHL
-
STX
18h 00m2 stops
Multiple Airlines Logo
3:26 pm - 11:46 pm
STX
-
PHL
9h 20m2 stops
$345Multiple Airlines
Sun, Feb 1 - Fri, Mar 6
Spirit Airlines Logo
8:43 pm - 3:43 pm
PHL
-
STX
18h 00m2 stops
Spirit Airlines Logo
4:37 pm - 8:44 am
STX
-
PHL
17h 07m1 stop
$348Spirit Airlines
Booking Insights

KAYAK's insights & trends for Philadelphia to Saint Croix flights

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

Which airlines fly non-stop between Philadelphia and Saint Croix?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for round-trip flights from Philadelphia to Saint Croix.

There are 4 airlines that fly nonstop from Philadelphia to Saint Croix. They are: American Airlines, Frontier, Delta and Spirit Airlines. The cheapest price of all airlines flying this route was found with Frontier at $108 for a round-trip flight to Christiansted (STX). On average, Frontier offers the best prices for nonstop flights between Philadelphia and Saint Croix.

Which airlines provide the cheapest flights from Philadelphia to Saint Croix?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Philadelphia to Saint Croix were found on Spirit Airlines ($199) and JetBlue ($314).

Good to know

Cheapest flight$141
Flight from Philadelphia to Christiansted

FAQs - booking Saint Croix flights

  • How does KAYAK find such low prices on flights from Philadelphia to Saint Croix?

    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 Saint Croix.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Philadelphia to Saint Croix 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 Saint Croix?

    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 from Philadelphia to Saint Croix with an airline and back with another airline.

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

    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 from Philadelphia to Saint Croix up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Saint Croix?

    The cheapest time of day to fly to Saint Croix is generally in the morning, when round-trip flights cost $799 on average. The most expensive time of day to fly to Saint Croix is generally in the morning, which is peak travel time and where the average cost of a ticket is $799.

Reviews of the top 4 airlines serving from Philadelphia to Saint Croix

 
See real verified KAYAK customer reviews for airlines flying from Philadelphia to Saint Croix. 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 Saint Croix? 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 8009 reviews
7.9Entertainment
7.3Food
8.1Boarding
7.9Comfort
8.5Crew
Airline reviews

None of the airplane features were available during the flight.

4.0 OkayAnonymous, Dec 2025
JFK - SDQ
Read more Delta reviews

None of the airplane features were available during the flight.

Original flight was cancelled and when i was rebooked by the airline, they couldn't seat me in the same type of seat as I had originally booked (went from window/aisle to middle/middle and one was a bulkhead seat, and other wasn't in the same class)

Lady Pilot was perfect in every way wheels up to wheels down communication, professionalism, excellent on time departure and on time arrival, excellent communication! Fantastic job with Superb attitude!!

The food is terrible. The staff is wonderful. Comfort is good.

Left on time, a bit delayed due to headwinds most of the trip.

I fly Delta all the time, have Platinum Medallion status. But this route seems to have major problems with delays and seems to never leave on time! Have only taken it twice in the last two weeks, and each time it had delays of more than 1 hour... very disappointed!!!!

Getting to the flight was arduous and lengthy. The flight itself was good but the food option wasn’t a good selection. I need to do a Kosher option on my return. Flight crew were nice

Good seats in Main cabin, excellent service and excellent landing

My flight was cancelled with no explanation after I had already cleared security. I was given 4 options to rebook, only one being non-stop like I had paid for. I grabbed it. It was 4 plus hours later and then took off even later. Biggest complaint is that I booked early and had an aisle seat. They gave me a "window" seat in front of the exit row, so the seat did not decline. I weigh all of 103 #s and it was tight for me! For what I paid, I feel I was kind of ripped off. I think they should have given me the empty comfort seat for the inconvenience. There was no apology nor any explanation as to why the flight was cancelled. My guess is it benefitted Delta in some way.

Very smooth, on-time, and pleasantly uneventful flight. The team at the gate and on board were professional and genuinely courteous. The pilot kept us well updated throughout, and both takeoff and landing were steady and enjoyable without any drama. Just a good, solid flight. Thank you! 💗

Not comparable to Qatar Airways services on flights to Doha. Flight attendants provided basic services; I was never recognized by name or as an Executive Platinum member. Restrooms were not kept clean during the flight.

Delays to take off and to leave the plane after landing added a lot of time to this flight.

The Phildalphia to Allentown portion was a BUS, not a plane. All was as expected.

Excellent - explanations were clear staff was nice and flight was comfortable

Airport in MXP is crazy. Get there at least 2 hours before flight.

Flight was delayed not sure why no explanation given and no apologies either. Otherwise the flight was fine

Did not get the seat I selected and paid for.

The flight was canceled 3 hours after original take off time

Plane was delayed for 6 hours, at first by weather, which is understandable, but was further delayed with NO given reason for 2 1/2 hours more. We had no clue when we were going to depart actually until they opened the ramp. VERY POOR to ZERO COMMUNICATION!!!

Flight was delayed and after being in the airport for like seven hours, it was canceled.

Our flight got rescheduled 48 hours later, the airline didn’t pay a penny for our expenses.

We had to sit and wait for almost an hour after landing and taxiing to the gate. The jet bridge was broken so we just waited and waited and waited and it was inconvenient, hot, and unnecessary.

Flight was in time, very smooth ride and surprisingly lots of legroom in the cabin so I certainly will fly with spirit again

The seats are the most uncomfortable seats I’ve ever sat in. Don’t believe I’ll ever fly spirit again!!

Flight was canceled and instead of rescheduling at the gate we had to go out to the ticket counter. Unruly kids kicking the back of my rows chair with staff to inattentive to say something.

Customer feedback I sent to Spirited today: “I will never fly Spirit Airlines again and will work hard to convince my friends and family to boycott/avoid Spirit Airlines at all costs. I booked three seats for me and my 8 and 10 year old children on NK 1222 from Orlando to Kansas City for 12/7/25 leaving Orlando at 10:37AM. This itinerary was abandoned by Spirit and we were rebooked onto Spirit flight NK 213 leaving at 9:06PM without any notice. Then the nightmare really began. Flight 213 was delayed a total of 12 times, finally leaving at 6:35AM the following day. The gate was changed 5 times and our electronic boarding passes were invalidated at midnight. The worst part was that the 12 separate delays were incremental making it impossible to plan for accommodations for my family. My kids missed a day of school and barely slept under the harsh lights with lots of noise on the filthy airport floor. The customer service agent at Spirit Airlines told us we would be emailed a voucher for a hotel which never happened. I asked about it multiple times and it never arrived in my email inbox. This whole unfortunate situation could’ve been avoided if spirit had taken a realistic approach and delayed the flight from 9 PM until 6 AM from the beginning. My son gleefully deleted the Spirit app from my phone once we landed and we will never fly with Spirit again.”

Honestly horrible. The plane on the way back was delayed 6 times with no explanation on why. When I asked for a refund or some money back because I had to miss a day of work because of the desk, they told me no. Because of how poorly it was handled I will most likely never take spirit again

I love a flight without turbulence and you guys deliver It’d be nice to have comfier seats and maybe some inflight entertainment and snacks but that’s for Delta

30 minute delay, Also there was a medical emergency on the flight. The flight crew was on top of the situation and assisted the medical professionals that happened to be on the flight.

This was my first time on a budget airline and I couldn't even sit down all the way because my knees would embed in the seat in front of me. I'm only 6' tall with a 32" inseam. There's no upside other than y'all are cheap. I'm glad it was only a 2 hour flight. Lesson learned! I get why everybody talks down on budget airlines. The staff was outstanding, the flight went as well as possible, great pilot, great boarding, smooth sailing. Zero chance I'll be back though.

Not clean and was told I would get a great seat and it was not great at all

Flight got delayed for 5 hours no good explanation was offered ;(

Horrible. I would never fly Frontier again. The booking process is tricky at best, but fraudulent in my opinion. Frontier customer service did nothing to rectify my purchase -- I ended up paying more than double what I could have gotten from other airlines and nearly triple what I thought I was buying from Frontier. Their booking practices are unfair to the consumer.

Delayed. Text notifications were slow. Not much information o what was happening. Boarding was slow and confusing. Wasn’t even offered water other flight. Had to ask. No entertainment at all. Felt like.a Greyhound bus.

When I wanted to check in 3 hours prior to boarding time, the employees mentioned “a little over an hour delay” so I waited for an hour then I went to go look for food in the terminal and most people from that flight were in the same area looking for food. Finally I decided after food to check to see if it’s anytime closer and now it’s 2 mins until boarding closes?! What are you kidding me? I didn’t receive anything via sms about boarding now nor via email or on the intercom. I luckily made it through, barely, and then there’s no room for my carry on mind you I’m in the very first row so I had to place my purse in one further row back and my carry on sections down. Not sure who pays for better seats to get your stuff placed all over the plane but that was the worst experience I’ve ever had flying with anyone.

Better than expected. Staff were friendly and nice on both flights.

There was no one at the counter to assist with our check in. The app didn’t work, so I arrived at the airport with time to check in and I couldn’t because no employees were there. When I finally got someone on the phone, it was inside the 60min rule and they said I could no longer check in and they could sell me another ticket. We had to scramble and pay an additional $800 for tickets and THEN AFTER (about 60 min from my original convo with customer service and 10min after original departure time) I had boarded my new flight, there was email saying my original flight from Frontier was delayed and leaving 2hr 50min later, but I STILL wouldn’t have been able to check in. Which means customer service should have been able to see it and let me check in because I was well within my check in time. When I call Frontier, they hang up on me. So their app didn’t work and they employees left and they take zero responsibility or assistance with their “customer service”

Terrible. Flight cancelled with no reasoning and no flights to rebook. Employees were useless and did nothing to help. Did not even know where to retrieve luggage from the cancelled flight. Flyers beware.

No fault of Frontier staff: plane was very late, reached Orlando at 1 am, took a while to get luggage. Weather, gov financial shutdown impact on TSA, air controllers seemed to have multiple flights backed up. Frontier staff seemed to cope as gracefully as possible. It did reassure me that I and my new hip could adapt to travel challenges. Food/entertainment were irrelevant to my trip.

Terrible. The canceled my entire flight when I requested a refund for a trip frontier canceled trip one way.

Everything you need to know for your flight from Philadelphia to Saint Croix

Information on your arrival and departure airports