HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Santiago de los Caballeros

$174+ Cheap flights from Newark (EWR) to Santiago de los Caballeros (STI)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/1. Fares are subject to change and may not be available on all flights or dates of travel.
EWR — STI
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Newark to Santiago de los Caballeros with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Newark to Santiago de los Caballeros are usually found in October or September, booked 85 days in advance, depart on a Wednesday or Sunday and return on a Thursday

Cheap flight deals from Newark to Santiago de los Caballeros

Discover tips and strategies to find the most affordable flight options for your journey from Newark (EWR) to Santiago de los Caballeros (STI). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 14, 2025.

Round-trip from

$361
(Kiwi.com)

One-way from

$174
(American Airlines)

Popular in

December

Cheapest in

October

Average price

$660

Good round-trip deal

$430 or less

Good one-way deal

$228 or less
From Newark to Santiago de los Caballeros
Search Deals
One-way flight from Newark to Santiago de los Caballeros
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($54 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($28 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2025
Search Deals
Price to beat on a round-trip flight from Newark to Santiago de los Caballeros.
Search Deals
Price to beat on a one-way flight from Newark to Santiago de los Caballeros.
Search Deals

Find flight deals from Newark to Santiago de los Caballeros

Cheapest flights from Newark to Santiago de los Caballeros
Explore the most affordable flight options available from Newark to Santiago de los Caballeros. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

This Kiwi.com deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/186:56 pmEWR - STI
1 stop16h 07mSpirit Airlines
Thu 10/1612:13 pmSTI - EWR
1 stop6h 46mSpirit Airlines
Deal found 8/14$361
This Kiwi.com deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/186:56 pmEWR - STI
1 stop16h 07mSpirit Airlines
Mon 10/2012:13 pmSTI - EWR
1 stop7h 09mSpirit Airlines
Deal found 8/14$362
This Kiwi.com deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/176:56 pmEWR - STI
1 stop16h 07mSpirit Airlines
Sun 10/1912:13 pmSTI - EWR
1 stop6h 46mSpirit Airlines
Deal found 8/14$363
This Cheapflightsfares deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/46:56 pmEWR - STI
1 stop16h 07mSpirit Airlines
Sun 9/712:10 pmSTI - EWR
1 stop11h 36mSpirit Airlines
Deal found 8/13$364
This FlightHub deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/46:56 pmEWR - STI
1 stop16h 07mSpirit Airlines
Thu 9/1812:10 pmSTI - EWR
2 stops21h 48mSpirit Airlines
Deal found 8/13$365
This American Airlines deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/265:59 amEWR - STI
1 stop6h 14mAmerican Airlines
Tue 11/47:00 amSTI - EWR
1 stop15h 12mAmerican Airlines
Deal found 8/12$366
This United Airlines deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/79:57 pmEWR - STI
Nonstop3h 49mUnited Airlines
Sat 9/136:00 amSTI - EWR
Nonstop3h 58mUnited Airlines
Deal found 8/13$367
This Cheapflightsfares deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/76:56 pmEWR - STI
1 stop16h 07mSpirit Airlines
Sun 9/2112:10 pmSTI - EWR
1 stop11h 36mSpirit Airlines
Deal found 8/12$368
This American Airlines deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/257:35 pmEWR - STI
2 stops16h 52mAmerican Airlines
Tue 10/71:14 pmSTI - EWR
2 stops20h 40mAmerican Airlines
Deal found 8/12$369
This JetBlue deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/188:00 pmEWR - STI
Nonstop3h 57mJetBlue
Tue 9/305:05 amSTI - EWR
Nonstop3h 50mJetBlue
Deal found 8/14$370
This American Airlines deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/309:30 amEWR - STI
2 stops26h 43mAmerican Airlines
Mon 11/34:36 pmSTI - EWR
1 stop9h 09mAmerican Airlines
Deal found 8/12$371
This CheapOair deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/3011:00 amEWR - STI
2 stops22h 15mSpirit Airlines
Tue 9/912:10 pmSTI - EWR
2 stops21h 48mSpirit Airlines
Deal found 8/13$372

Cheapflights Fare Finder

 
Customize your flight search to find flights from Newark to Santiago de los Caballeros that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 14, 2025.
Use the filters below to find and compare flights from Newark Airport to Santiago de los Caballeros that are best for you.

Fly from

Newark

Fly to

Santiago de los Caballeros

Route

Depart

Return

Price

NewarkSantiago de los Caballeros

EWR - STI

EWRSTI

Newark

Thu 9/4

6:56 pm-11:03 am

1 stop16h 07m

Santiago de los Caballeros

Sun 9/7

12:10 pm-11:46 pm

1 stop11h 36m

$364

NewarkSantiago de los Caballeros

EWR - STI

EWRSTI

Newark

Thu 10/9

8:00 pm-11:54 pm

Nonstop3h 54m

Santiago de los Caballeros

Mon 10/13

5:05 am-8:55 am

Nonstop3h 50m

$365

NewarkSantiago de los Caballeros

EWR - STI

EWRSTI

Newark

Mon 9/8

10:05 am-11:03 am

1 stop24h 58m

Santiago de los Caballeros

Mon 9/15

12:10 pm-11:46 pm

1 stop11h 36m

$365

NewarkSantiago de los Caballeros

EWR - STI

EWRSTI

Newark

Sun 9/7

9:57 pm-1:46 am

Nonstop3h 49m

Santiago de los Caballeros

Sat 9/13

6:00 am-9:58 am

Nonstop3h 58m

$367

NewarkSantiago de los Caballeros

EWR - STI

EWRSTI

Newark

Sat 9/20

5:39 pm-12:27 pm

2 stops18h 48m

Santiago de los Caballeros

Sat 9/27

1:29 pm-9:54 am

2 stops20h 25m

$369

NewarkSantiago de los Caballeros

EWR - STI

EWRSTI

Newark

Wed 9/3

5:49 pm-12:27 pm

2 stops18h 38m

Santiago de los Caballeros

Fri 9/12

1:29 pm-10:19 am

2 stops20h 50m

$369

NewarkSantiago de los Caballeros

EWR - STI

EWRSTI

Newark

Thu 9/4

10:05 am-11:03 am

1 stop24h 58m

Santiago de los Caballeros

Thu 9/11

12:10 pm-11:46 pm

1 stop11h 36m

$369

NewarkSantiago de los Caballeros

EWR - STI

EWRSTI

Newark

Sun 9/28

5:40 am-12:27 pm

1 stop6h 47m

Santiago de los Caballeros

Sat 10/11

1:14 pm-9:54 am

2 stops20h 40m

$369

NewarkSantiago de los Caballeros

EWR - STI

EWRSTI

Newark

Fri 10/10

8:00 pm-11:54 pm

Nonstop3h 54m

Santiago de los Caballeros

Sun 10/19

5:05 am-8:55 am

Nonstop3h 50m

$370

NewarkSantiago de los Caballeros

EWR - STI

EWRSTI

Newark

Thu 9/18

8:00 pm-11:57 pm

Nonstop3h 57m

Santiago de los Caballeros

Wed 10/15

5:05 am-8:55 am

Nonstop3h 50m

$370

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/13

Showing 1-10 of 22 results
1
2
3

Best time to book a flight from Newark to Santiago de los Caballeros

Have a flexible travel schedule? Discover the best time to fly to Santiago de los Caballeros from Newark with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Newark Airport to Santiago de los Caballeros

How far ahead should I book a flight from Newark Airport to Santiago de los Caballeros?

Use this chart to determine the optimal time to book a round-trip flight from Newark to Santiago de los Caballeros. Price data was last updated on August 8, 2025.

The price you pay for your flight from Newark Airport to Santiago de los Caballeros may vary depending on when you book. For the best chance of a lower fare, look to book 85 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Newark Airport to Santiago de los Caballeros?

Currently, May is the cheapest month in which you can book a flight from Newark Airport to Santiago de los Caballeros (average of $347). Flying from Newark Airport to Santiago de los Caballeros in July is currently the most expensive (average of $601). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from EWR to STI?

Find hourly flight availability from Newark to Santiago de los Caballeros. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 14, 2025.

It’s optimal to fly from Newark Airport to Santiago de los Caballeros in the afternoon. By choosing this option you can save up to 34% on the cost of your flight, compared to a flight in the morning.

What is the cheapest day to fly from Newark Airport to Santiago de los Caballeros?

Use this chart to determine the cheapest time to fly round-trip from Newark to Santiago de los Caballeros. Price data was last updated on August 10, 2025.

Travelers seeking maximum savings on their Newark Airport to Santiago de los Caballeros flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Newark Airport to Santiago de los Caballeros

Explore weekly flight availability from Newark to Santiago de los Caballeros. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated August 14, 2025.

The most flights from EWR to STI are scheduled on a Thursday (6 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (3 on average).

What’s the top layover airport for flights from Newark Airport to Santiago de los Caballeros?

Share of 1-stop round-trip flights from Newark Airport to Santiago de los Caballeros chosen by Cheapflights users in the past 12 months, using the same layover each way.

San Juan (SJU) – chosen by Cheapflights users on 68% of 1-stop itineraries from Newark Airport to Santiago de los Caballeros on Cheapflights.

What’s the cheapest layover airport for flights from Newark Airport to Santiago de los Caballeros?

Average round-trip fare for 1-stop flights from Newark Airport to Santiago de los Caballeros, chosen by Cheapflights users in the past 12 months, with the same layover each way.

San Juan (SJU) is the most affordable 1-stop option, with an average round-trip price of $633.

What’s the fastest layover option from Newark Airport to Santiago de los Caballeros?

Shortest average travel time for 1-stop one-way flights from Newark Airport to Santiago de los Caballeros, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Fort Lauderdale (FLL) have the shortest average one-way travel time for 1-stop routes: 10h 41m.

Which airport typically offers the quickest layover for flights from Newark Airport to Santiago de los Caballeros?

Average layover duration for 1-stop one-way flights from Newark Airport to Santiago de los Caballeros, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via San Juan (SJU) offer the fastest connection on this route, with an average layover time of 4h 19m.

Reviews of airlines servicing Santiago de los Caballeros

Get insights into the airlines that provide service to Santiago de los Caballeros. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Santiago de los Caballeros. Reviews last updated August 14, 2025.
See what other customers who have flown with United Airlines, American Airlines, and JetBlue from Newark Airport to Santiago de los Caballeros have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,916 reviews

Boarding

7.7

Overall

7.4

Entertainment

7.1

Comfort

7.3

Crew

8.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,916 reviews
United Airlines
7.4
Good
8,916 reviews

Boarding

7.7

Overall

7.4

Entertainment

7.1

Comfort

7.3

Crew

8.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,916 reviews

Boarding

7.7

Overall

7.4

Entertainment

7.1

Comfort

7.3

Crew

8.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
JetBlue
7.2
Good
2,914 reviews
United Airlines
7.4
Good
8,916 reviews

Boarding

7.7

Overall

7.4

Entertainment

7.1

Comfort

7.3

Crew

8.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Spirit Airlines
6.3
Okay
8,045 reviews
United Airlines
7.4
Good
8,916 reviews

Boarding

7.7

Overall

7.4

Entertainment

7.1

Comfort

7.3

Crew

8.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Frontier
5.8
Fair
3,219 reviews
United Airlines
7.4
Good
8,916 reviews

Boarding

7.7

Overall

7.4

Entertainment

7.1

Comfort

7.3

Crew

8.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Related info for your journey

Find useful and relevant information for your journey from Newark to Santiago de los Caballeros. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Santiago de los Caballeros from Newark?

    Most people fly into Santiago de los Caballeros (STI) if they book a flight to Santiago de los Caballeros from Newark. On average, Santiago has 5 inbound flights from Newark per day from 6 airlines. Santiago de los Caballeros is conveniently located just 6.8 mi from Santiago de los Caballeros’s city center.

  • How popular is this Newark Airport to Santiago de los Caballeros flight route?

    The Newark to Santiago de los Caballeros flight path was viewed by 181 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • What are the cheapest airlines flying from Newark Airport to Santiago de los Caballeros round-trip?

    According to our current data, Spirit Airlines ($207), Frontier ($210), and JetBlue ($264) offers the cheapest pricing from Newark Airport to Santiago de los Caballeros. Spirit Airlines is 61% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest flights from Newark Airport to Santiago de los Caballeros?

    On average you can expect to pay $771 for a flight from Newark Airport to Santiago de los Caballeros. The cheapest flight overall is $169 while the most popular route, (Newark - Santiago de los Caballeros) is currently priced at $246.

  • Can I find deals for flights from Newark to Santiago de los Caballeros that include hotel bookings?

    Yes. In addition to deals on Newark to Santiago de los Caballeros flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Newark to Santiago de los Caballeros?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Newark to Santiago de los Caballeros.

  • Can I find deals for business class flights from Newark to Santiago de los Caballeros?

    Yes. Cheapflights offers flight deals from Newark to Santiago de los Caballeros by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Newark Airport to Santiago de los Caballeros?

    Currently, May is the cheapest month in which you can book a flight from Newark Airport to Santiago de los Caballeros (average of $347). Flying from Newark Airport to Santiago de los Caballeros in July is currently the most expensive (average of $601). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 6 airlines flying from Newark to Santiago de los Caballeros

Discover the top 6 airlines that operate flights from Newark to Santiago de los Caballeros. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$207Average$447FlexibilityNo cancel feeOn-time65%
FrontierCheapest$210Average$391FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$264Average$544FlexibilityNo cancel feeOn-time62%
DeltaCheapest$278Average$366FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$322Average$554FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$419Average$589FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.