PHL - STI

$112 Find Cheap Flights from Philadelphia to Santiago de los Caballeros

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 Santiago de los Caballeros departing on 8/19. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Santiago de los Caballeros

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Philadelphia to Santiago de los Caballeros, 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 Santiago de los Caballeros, as well as popular online travel agencies
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Cheap Flights from Philadelphia to Santiago de los Caballeros (PHL-STI)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Philadelphia to Santiago de los Caballeros 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 Santiago de los Caballeros

Tue, Sep 23 - Tue, Sep 30
Spirit Airlines Logo
5:25 am - 11:05 amPHL-STI
5h 40m1 stop
Spirit Airlines Logo
12:10 pm - 11:47 pmSTI-PHL
11h 37m1 stop
$277Spirit Airlines
Find Deal
Thu, Sep 4 - Mon, Sep 8
Spirit Airlines Logo
5:25 am - 11:05 amPHL-STI
5h 40m1 stop
Spirit Airlines Logo
12:10 pm - 12:57 amSTI-PHL
12h 47m1 stop
$279Spirit Airlines
Find Deal
Thu, Sep 4 - Mon, Sep 8
Spirit Airlines Logo
5:25 am - 11:05 amPHL-STI
5h 40m1 stop
Spirit Airlines Logo
12:10 pm - 12:57 amSTI-PHL
12h 47m1 stop
$280Spirit Airlines
Find Deal
Wed, Oct 8 - Wed, Oct 15
Spirit Airlines Logo
5:25 am - 11:05 amPHL-STI
5h 40m1 stop
Spirit Airlines Logo
12:10 pm - 11:59 pmSTI-PHL
11h 49m1 stop
$281Spirit Airlines
Find Deal
Sat, Nov 1 - Tue, Nov 4
Spirit Airlines Logo
5:25 am - 11:05 amPHL-STI
5h 40m1 stop
Spirit Airlines Logo
1:10 pm - 11:59 pmSTI-PHL
11h 49m1 stop
$282Spirit Airlines
Find Deal
Sat, Aug 30 - Fri, Sep 5
Spirit Airlines Logo
8:41 pm - 9:15 amPHL-STI
12h 34m1 stop
Spirit Airlines Logo
12:10 pm - 12:57 amSTI-PHL
12h 47m1 stop
$296Spirit Airlines
Find Deal
Sun, Sep 7 - Sat, Sep 13
Spirit Airlines Logo
5:25 am - 11:05 amPHL-STI
5h 40m1 stop
Spirit Airlines Logo
12:10 pm - 11:47 pmSTI-PHL
11h 37m1 stop
$302Spirit Airlines
Find Deal
Sun, Sep 14 - Tue, Sep 30
Spirit Airlines Logo
5:25 am - 11:05 amPHL-STI
5h 40m1 stop
Spirit Airlines Logo
12:10 pm - 11:47 pmSTI-PHL
11h 37m1 stop
$305Spirit Airlines
Find Deal
Mon, Aug 18 - Wed, Sep 10
 Logo
6:00 am - 12:51 pmPHL-STI
6h 51m1 stop
 Logo
12:10 pm - 11:47 pmSTI-PHL
11h 37m1 stop
Tue, Aug 12 - Fri, Aug 15
Frontier Logo
8:05 pm - 12:51 pmPHL-STI
16h 46m1 stop
Frontier Logo
2:06 pm - 1:45 amSTI-PHL
11h 39m1 stop
$389Frontier
Find Deal
Booking Insights

KAYAK's insights & trends for Philadelphia to Santiago de los Caballeros flights

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

What’s the cheapest day of the week to fly from Philadelphia to Santiago de los Caballeros?

The average price of all round-trip flights from Philadelphia to Santiago de los Caballeros clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Santiago de los Caballeros on a Tuesday, as we generally find the cheapest rates on that day for this route. On the other hand, Saturday is the most expensive day to fly from Philadelphia to Santiago de los Caballeros. For your return ticket, we recommend flying on a Monday and avoiding Sundays for the best deals.

What is the cheapest month to fly from Philadelphia to Santiago de los Caballeros?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Philadelphia to Santiago de los Caballeros, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Philadelphia to Santiago de los Caballeros is October, where tickets cost $357 (return) on average. On the other hand, the most expensive months are November and December, where the average cost of round-trip tickets is $616 and $613 respectively.

How far in advance should I book a flight from Philadelphia to Santiago de los Caballeros?

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 Santiago de los Caballeros, 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 Santiago de los Caballeros, you should book around 3 weeks before departure, which saves you about 45% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 5 weeks before departure.

Good to know

Low seasonNovember
Cheapest flight$112
Best time to beat the crowds but there is an average 32% increase in price.
Most popular time to fly with an average 31% increase in price.
Flight from Philadelphia to Santiago de los Caballeros

When to book flights from Philadelphia to Santiago de los Caballeros

Are your dates flexible? Find out the best times to travel from Philadelphia to Santiago de los Caballeros 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 Santiago de los Caballeros

  • What is the cheapest flight from Philadelphia to Santiago de los Caballeros?

    In the last 3 days, the lowest price for a flight from Philadelphia to Santiago de los Caballeros was $112 for a one-way ticket and $277 for a round-trip.

  • Do I need a passport to fly between Philadelphia and Santiago de los Caballeros?

    Yes

  • Which airports will I be using when flying from Philadelphia to Santiago de los Caballeros?

    Philadelphia and Santiago de los Caballeros are both served by 1 main airport. You will leave Philadelphia from Philadelphia and will be arriving at Santiago de los Caballeros.

  • Which aircraft models fly most regularly from Philadelphia to Santiago de los Caballeros?

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

  • Which airline alliances offer flights from Philadelphia to Santiago de los Caballeros?

    SkyTeam, and oneworld are the airline alliances operating flights between Philadelphia and Santiago de los Caballeros, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from Philadelphia to Santiago de los Caballeros, American Airlines or Spirit Airlines?

    The two airlines most popular with KAYAK users for flights from Philadelphia to Santiago de los Caballeros are American Airlines and Spirit Airlines. With an average price for the route of $593 and an overall rating of 7.2, American Airlines is the most popular choice. Spirit Airlines is also a great choice for the route, with an average price of $460 and an overall rating of 6.3.

  • How does KAYAK find such low prices on flights from Philadelphia to Santiago de los Caballeros?

    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 Santiago de los Caballeros.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Philadelphia to Santiago de los Caballeros?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Santiago de los Caballeros 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 Santiago de los Caballeros?

    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 Santiago de los Caballeros with an airline and back to Philadelphia with another airline. Booking your flights between Philadelphia and STI 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 Santiago de los Caballeros?

    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 Santiago de los Caballeros 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 Santiago de los Caballeros

 
See real verified KAYAK customer reviews for airlines flying from Philadelphia to Santiago de los Caballeros. 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 Santiago de los Caballeros? 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.
7.2
American AirlinesOverall score based on 10000 reviews
7.2Comfort
7.5Boarding
6.5Food
8.0Crew
6.9Entertainment
Airline reviews

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

2.0 MediocreElí, Jul 2025PHL - CLE
Read more American Airlines reviews

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

Flight delays numerous times. Everytime we would get close to boarding it would be delayed again. Strung along the entire time.

Overall very good, only complaint I have is the crew from CLT to SAT could have collected trash sooner.

Above and beyond effort from this crew in a tough situation. So helpful and understanding. Thank you!

We started with trouble checking in 24 hours early. Then my husband did not get his TSA precheck. Finally flight delayed due to no crew. I know things happen

Most miserable flight ever. We waited almost 2 hours on the runway because the flight was oversold. American offered $1200 credit. Then there was some nonsense about weight distribution. Ridiculous. No food for 8 plus hours on the flight. I will be writing a letter.

Honestly, I haven’t flown American in years, probably due to the pandemic and my being unable to travel for certain periods in the last two years, but it was a good experience to dig out or obtain a new American Airlines account after many years of traveling for business with American in the past.

It’s a great flight. Service is good. Staff is awesome.

Again flight was awesome except British Airways lost both gate checked luggage’s. Still missing

Everything about the flight was lovely…We left early, arrived early, cabin crew were efficient and helpful. Flight was easy and most pleasant.

The flight was 3.5 hrs delayed. I was not notified prior to arriving to the airport via spirit app. or via boarding pass that I already had loaded on my phone. The agent that i saw at the counter didn’t mention anything about the delay either. I only saw the update after logging in to my email account.

The flight and boarding process was smooth. Wifi was unavailable and I prepaid for it. Have requested a refund

Had a issue with catching flight due to airline, was unable to board flight

Spirit is a very uncomfortable travel experience. It’s cheap but you are squeezed into the seats like canned meat.

Not great. Seats uncomfortable. Crew a little rude. Amenities like wifi and drinks way too expensive.

Late departure by 1:45min. No explanation why. During boarding inconsistent policing of their baggage rules. Before takeoff and lamdimg strange obsession with window shade and armrest positions. Don't know why they care. 15 min tarmac delay on arrival, they blamed airport congestion but we were the o lh flight waiting, it was clear it was due to poor staff planning (only one ground crew to receive airplanes and multiple arrivals) Got there but was rrally lame the whole trip.

The seat belt was lengthy enough that I did not need an extender. Courteous and helpful flight attendants.

We sat on the tarmac for an hour waiting for a gate to deplane.

Friendly employees, good seat, on time, Great flight. Pilot and attendants greeted passengers as we deplaned. However, I could not ever understand what the flight attendant was saying on the mic. It was too fast, and too loud.

Everything was fine, but there was no food or entertainment, so I didn’t know how to rate that.

My first flight was delayed 5 hours. The 2nd flight was canceled til the next day and the never even tried to compensate for it. Worse I was delayed again on the flight the rebooked me on.

Boarding in Orlando was not good. Giant mob at the gate, should have been lines.

The worst. They don’t follow procedure for boarding per group. Flight got delayed for no understandably reasons, they changed our destination from PR to Miami, left us inside a plane for more than 8 hours, then cancelled flight in Miami leaving us stranded. Poorly managed re-accommodation for a new flight and overnight stay so I have to spend in a new ticket and my own hotel room to been able to get to my office next day. Lost 2 days of work and as a doctor, patients loosing their appointments. to other flights and besides

Decent clean onboard experience. Okay discount airline experience. Unfortunately, any customer service interactions are difficult and unhelpful. There is no service. Also, a premium seat only gets you premium boarding if you line up first. Once they start general boarding you must go to the back of the line. Not very premium

baggage clamed had to wait over a hour and half for all people on my flight it was terrible

The ticketing agents were rude but then we had a great gate agent very nice we had to ride a buss out to where the plane was parked but it was in some back corner of the airport when we got to the plane the captain who was great btw was cleaning the plane because the same rude ticketing agent told them they we not contracted to vacuum the plane. The ride to las Vegas was fine We had a connecting flight to Dallas. The flight was fine but when we arrived in Dallas everyone who flew on any frontier airlines the picked up bags from baggage claim D15 had to wait over a hour for their bags to start we arrived at 11:30pm ish to the gate we didn't leave the baggage clamed till 12:50 am very not happy and i used to fly frontier 4 times a week for work in Denver i will not be using them again

I was 2 hr arrive in the airport and 45 min in the line . After take to my turn . The agent tell me I’m later . I can not board . So my vacation was going to the floor . Just for their bad customer service agent in the airline

Frontier Airlines was AWFUL. I was an hour early for my flight and the lady refused to check me in. I had to purchase a whole new ticket with a different airline.

My flight was canceled I was promised a reginf still not received.

Late, terrible communication, horrible planning of passenger seating until the literal last minute. One of the worst flying experiences of my life. Y'all suck

Everything you need to know for your flight from Philadelphia to Santiago de los Caballeros

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