Cheap flights from St. Louis (STL) to Santiago de los Caballeros (STI) from $278

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/27. 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.
STL — STI
Apr 2 — Apr 91

Cheap flight deals from St. Louis to Santiago de los Caballeros

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) 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 March 28, 2024.

Popular in

November

Cheapest in

April

Average price

$834

Round-trip from

$332
High demand for flights, 38% potential price rise
Best time to find cheap flights, 75% potential price drop
Average for round-trip flights in March 2024
From Lambert-St Louis to Santiago de los Caballeros

What is the cheapest day to fly round-trip from St. Louis to Santiago de los Caballeros?

Departing on a Sunday is a good option for securing a great price. You can expect to save up to 60% when planning your travel around this day of the week.

What is the cheapest month to fly from St. Louis to Santiago de los Caballeros?

Our data shows that April tends to be the cheapest month to fly to Santiago de los Caballeros from St. Louis. Users have commonly found prices around $769 for the month, but tickets can be as low as $193. Due to multiple factors, prepare for potentially higher prices in November.

When is the cheapest time to fly from St. Louis to Santiago de los Caballeros (STL - STI)?

One of the essential ways to save on airfare from St. Louis to Santiago de los Caballeros is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 38% on airfare.

Cheap American Airlines flights from St. Louis to Santiago de los Caballeros

Explore cheap flight options specifically provided by American Airlines for the route between St. Louis and Santiago de los Caballeros. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 3,238,496 searches. Data last updated March 28, 2024.
Take a look at some of the lowest-priced American Airlines flights heading from St. Louis to Santiago de los Caballeros. Be sure to come back soon if the deals available don't appeal to you at this time.
Wed 4/105:33 amSTL - STI
1 stop6h 17mAmerican Airlines
Wed 4/171:50 pmSTI - STL
1 stop10h 36mAmerican Airlines
Deal found 3/26$395
Wed 4/105:15 amSTL - STI
2 stops9h 20mAmerican Airlines
Wed 4/174:35 pmSTI - STL
2 stops20h 55mAmerican Airlines
Deal found 3/26$397
Wed 4/105:33 amSTL - STI
1 stop6h 17mAmerican Airlines
Wed 4/174:35 pmSTI - STL
2 stops18h 38mAmerican Airlines
Deal found 3/26$398
Tue 4/95:33 amSTL - STI
1 stop6h 17mAmerican Airlines
Tue 4/164:35 pmSTI - STL
1 stop7h 51mAmerican Airlines
Deal found 3/27$404
Tue 4/95:15 amSTL - STI
2 stops9h 20mAmerican Airlines
Tue 4/161:50 pmSTI - STL
2 stops21h 23mAmerican Airlines
Deal found 3/27$406
Tue 4/95:33 amSTL - STI
1 stop9h 02mAmerican Airlines
Tue 4/161:50 pmSTI - STL
2 stops21h 23mAmerican Airlines
Deal found 3/27$407
Tue 4/95:33 amSTL - STI
1 stop6h 17mAmerican Airlines
Tue 4/164:35 pmSTI - STL
1 stop7h 51mAmerican Airlines
Deal found 3/26$411
Tue 4/95:15 amSTL - STI
2 stops9h 20mAmerican Airlines
Tue 4/161:50 pmSTI - STL
2 stops21h 23mAmerican Airlines
Deal found 3/26$412
Tue 4/95:33 amSTL - STI
1 stop6h 17mAmerican Airlines
Tue 4/164:35 pmSTI - STL
2 stops18h 38mAmerican Airlines
Deal found 3/26$414

Cheap Spirit Airlines flights from St. Louis to Santiago de los Caballeros

Explore cheap flight options specifically provided by Spirit Airlines for the route between St. Louis and Santiago de los Caballeros. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 3,238,496 searches. Data last updated March 28, 2024.
Some of the best deals we've found on Spirit Airlines flights traveling from St. Louis to Santiago de los Caballeros. Deals are refreshing constantly so come back soon for more options.
Sat 4/276:24 pmSTL - STI
1 stop6h 23mSpirit Airlines
Mon 4/292:42 amSTI - STL
1 stop8h 02mSpirit Airlines
Deal found 3/25$278
Sat 4/2711:39 amSTL - STI
2 stops13h 08mSpirit Airlines
Mon 4/292:42 amSTI - STL
1 stop8h 02mSpirit Airlines
Deal found 3/25$309
Sat 5/1811:39 amSTL - STI
2 stops13h 20mSpirit Airlines
Sun 5/192:59 amSTI - STL
2 stops35h 38mSpirit Airlines
Deal found 3/26$368
Mon 4/85:35 pmSTL - STI
2 stops31h 15mSpirit Airlines
Sat 4/132:42 amSTI - STL
2 stops16h 58mSpirit Airlines
Deal found 3/26$434
Mon 4/85:35 pmSTL - STI
2 stops31h 15mSpirit Airlines
Sat 4/132:42 amSTI - STL
2 stops16h 58mSpirit Airlines
Deal found 3/27$491
Mon 4/85:35 pmSTL - STI
2 stops31h 15mSpirit Airlines
Sat 4/132:42 amSTI - STL
1 stop15h 52mSpirit Airlines
Deal found 3/27$539
Mon 4/85:35 pmSTL - STI
2 stops31h 15mSpirit Airlines
Sat 4/132:42 amSTI - STL
1 stop15h 52mSpirit Airlines
Deal found 3/26$571

Cheap St. Louis to Santiago de los Caballeros flights in March & April 2024

Find cheap flight options from St. Louis to Santiago de los Caballeros specifically for the months of March and April 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,238,496 searches. Prices were last updated on March 28, 2024.
Scroll through some of the best deals on flights from St. Louis to Santiago de los Caballeros in 2024. Check back soon for alternative fares.
Sat 4/276:24 pmSTL - STI
1 stop6h 23mSpirit Airlines
Mon 4/292:42 amSTI - STL
1 stop8h 02mSpirit Airlines
Deal found 3/26$278
Sat 4/2711:39 amSTL - STI
2 stops13h 08mSpirit Airlines
Mon 4/292:42 amSTI - STL
1 stop8h 02mSpirit Airlines
Deal found 3/26$309
Tue 4/98:24 pmSTL - STI
2 stops28h 23mMultiple Airlines
Mon 4/152:42 amSTI - STL
1 stop8h 02mMultiple Airlines
Deal found 3/27$360
Tue 4/98:24 pmSTL - STI
3 stops28h 23mMultiple Airlines
Mon 4/152:42 amSTI - STL
1 stop8h 02mMultiple Airlines
Deal found 3/27$364
Tue 4/95:33 amSTL - STI
1 stop6h 17mAmerican Airlines
Tue 4/164:35 pmSTI - STL
1 stop7h 51mAmerican Airlines
Deal found 3/27$404
Tue 4/95:15 amSTL - STI
2 stops9h 20mAmerican Airlines
Tue 4/161:50 pmSTI - STL
2 stops21h 23mAmerican Airlines
Deal found 3/27$406
Tue 4/95:33 amSTL - STI
1 stop9h 02mAmerican Airlines
Tue 4/161:50 pmSTI - STL
2 stops21h 23mAmerican Airlines
Deal found 3/27$407
Mon 4/85:35 pmSTL - STI
2 stops31h 15mSpirit Airlines
Sat 4/132:42 amSTI - STL
2 stops16h 58mSpirit Airlines
Deal found 3/27$491
Mon 4/84:41 pmSTL - STI
2 stops21h 54mAmerican Airlines
Sun 4/141:50 pmSTI - STL
1 stop10h 36mAmerican Airlines
Deal found 3/27$494

St. Louis to Santiago de los Caballeros 2024 flight deals

Discover exclusive flight deals for travel between St. Louis and Santiago de los Caballeros in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,238,496 searches. Data last updated March 28, 2024.
Scroll through some of the best deals on flights from St. Louis to Santiago de los Caballeros in 2024. Check back soon for alternative fares.
Sat 4/276:24 pmSTL - STI
1 stop6h 23mSpirit Airlines
Mon 4/292:42 amSTI - STL
1 stop8h 02mSpirit Airlines
Deal found 3/26$278
Sat 4/2711:39 amSTL - STI
2 stops13h 08mSpirit Airlines
Mon 4/292:42 amSTI - STL
1 stop8h 02mSpirit Airlines
Deal found 3/26$309
Sat 5/185:15 pmSTL - STI
1 stop7h 44mMultiple Airlines
Sun 5/192:59 amSTI - STL
2 stops29h 03mMultiple Airlines
Deal found 3/26$333
Tue 4/98:24 pmSTL - STI
2 stops28h 23mMultiple Airlines
Mon 4/152:42 amSTI - STL
1 stop8h 02mMultiple Airlines
Deal found 3/27$360
Tue 4/98:24 pmSTL - STI
3 stops28h 23mMultiple Airlines
Mon 4/152:42 amSTI - STL
1 stop8h 02mMultiple Airlines
Deal found 3/27$364
Sat 5/1811:39 amSTL - STI
2 stops13h 20mSpirit Airlines
Sun 5/192:59 amSTI - STL
2 stops35h 38mSpirit Airlines
Deal found 3/26$368
Sat 5/184:20 pmSTL - STI
2 stops19h 05mAmerican Airlines
Mon 5/205:10 pmSTI - STL
2 stops17h 43mAmerican Airlines
Deal found 3/26$397
Tue 4/95:33 amSTL - STI
1 stop6h 17mAmerican Airlines
Tue 4/164:35 pmSTI - STL
1 stop7h 51mAmerican Airlines
Deal found 3/27$404
Tue 4/95:15 amSTL - STI
2 stops9h 20mAmerican Airlines
Tue 4/161:50 pmSTI - STL
2 stops21h 23mAmerican Airlines
Deal found 3/27$406

Find flights from St. Louis to Santiago de los Caballeros within your budget

Customize your flight search to find flights from St. Louis 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 3,238,496 searches. Data last updated March 28, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$278 - $397

Route

Depart

Return

Price

Lambert-St LouisSantiago de los Caballeros

STL - STI

STLSTI

Lambert-St Louis

Sat 4/27

1 stop6h 23m

Santiago de los Caballeros

Mon 4/29

1 stop8h 02m

$278

Lambert-St LouisSantiago de los Caballeros

STL - STI

STLSTI

Lambert-St Louis

Sat 4/27

2 stops13h 08m

Santiago de los Caballeros

Mon 4/29

1 stop8h 02m

$309

Lambert-St LouisSantiago de los Caballeros

STL - STI

STLSTI

Lambert-St Louis

Tue 4/9

2 stops28h 23m

Santiago de los Caballeros

Mon 4/15

1 stop8h 02m

$329

Lambert-St LouisSantiago de los Caballeros

STL - STI

STLSTI

Lambert-St Louis

Tue 4/9

2 stops28h 23m

Santiago de los Caballeros

Mon 4/15

3 stops43h 11m

$331

Lambert-St LouisSantiago de los Caballeros

STL - STI

STLSTI

Lambert-St Louis

Tue 4/9

3 stops28h 23m

Santiago de los Caballeros

Mon 4/15

1 stop8h 02m

$333

Lambert-St LouisSantiago de los Caballeros

STL - STI

STLSTI

Lambert-St Louis

Tue 4/9

3 stops28h 23m

Santiago de los Caballeros

Mon 4/15

3 stops43h 11m

$335

Lambert-St LouisSantiago de los Caballeros

STL - STI

STLSTI

Lambert-St Louis

Sat 5/18

2 stops13h 20m

Santiago de los Caballeros

Sun 5/19

2 stops35h 38m

$368

Lambert-St LouisSantiago de los Caballeros

STL - STI

STLSTI

Lambert-St Louis

Wed 4/10

1 stop6h 17m

Santiago de los Caballeros

Wed 4/17

1 stop10h 36m

$395

Lambert-St LouisSantiago de los Caballeros

STL - STI

STLSTI

Lambert-St Louis

Wed 4/10

2 stops9h 20m

Santiago de los Caballeros

Wed 4/17

2 stops20h 55m

$397

Flights are sorted by cheapest first

Deals found on 3/25

When is the cheapest time to fly from St. Louis to Santiago de los Caballeros?

Use this chart to determine the cheapest time to fly round-trip from St. Louis to Santiago de los Caballeros. Price data was last updated on March 24, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their St. Louis to Santiago de los Caballeros flight should consider departing on Monday mornings when fares are most often at their lowest. Tuesday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Average price of flights to Santiago de los Caballeros by month

Plan your trip from St. Louis to Santiago de los Caballeros by taking into account the cheapest months to travel. The average price of a one-way flight from St. Louis to Santiago de los Caballeros is currently $0 while a round-trip flight costs $342. Price data was last updated on March 24, 2024.

Currently, September is the cheapest month in which you can book a flight from St. Louis to Santiago de los Caballeros (average of $332). Flying from St. Louis to Santiago de los Caballeros in July is currently the most expensive (average of $562). 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.

January

$343

February

$352

March

$374

April

$392

May

$370

June

$412

July

$562

August

$452

September

$332

October

$347

November

$392

December

$412

Temperature and rainfall in Santiago de los Caballeros by month

Plan your trip to Santiago de los Caballeros by taking into account the average temperature and rainfall totals by month.

STI

Temperature

73.4 - 80.6 °F

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 March 28, 2024.
Read through reviews of airlines operating flights from St. Louis to Santiago de los Caballeros, such as American Airlines and Spirit Airlines. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
7.3
Good
15,202 reviews

Crew

8.0

Overall

7.3

Comfort

7.2

Food

6.6

Entertainment

7.1

Boarding

7.6

Reviews

1 / 10

Allow you to take your carry on with you on the plane. It was a full flight and I had to check my bag. As we boarded, a few people who came after me were able to take their bags on the plane.

7.3
Good
15,202 reviews
7.3
Good
15,202 reviews

Crew

8.0

Overall

7.3

Comfort

7.2

Food

6.6

Entertainment

7.1

Boarding

7.6

Reviews

1 / 10

Allow you to take your carry on with you on the plane. It was a full flight and I had to check my bag. As we boarded, a few people who came after me were able to take their bags on the plane.

6.4
Okay
8,841 reviews
7.3
Good
15,202 reviews

Crew

8.0

Overall

7.3

Comfort

7.2

Food

6.6

Entertainment

7.1

Boarding

7.6

Reviews

1 / 10

Allow you to take your carry on with you on the plane. It was a full flight and I had to check my bag. As we boarded, a few people who came after me were able to take their bags on the plane.

Related info for your journey

Find useful and relevant information for your journey from St. Louis 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.
  • Can I find flights from St. Louis to Santiago de los Caballeros for under $300 on Cheapflights?

    Yes, there are multiple flights from St. Louis to Santiago de los Caballeros for under $300. The cheapest flight booked recently is on Spirit Airlines for just $278, but on average you can expect to pay $377.

  • What are the cheapest airlines flying from St. Louis to Santiago de los Caballeros round-trip?

    According to our current data, Spirit Airlines ($278), and American Airlines ($395) offers the cheapest pricing from St. Louis to Santiago de los Caballeros. Spirit Airlines is currently priced 63% below the average price you’ll pay for this route.

  • What does STL to STI mean?

    STL and STI are unique codes to identify airports used in the aviation industry. They are defined by IATA (International Air Transport Association) and are commonly called IATA codes. STL to STI refers to a flight route from Lambert-St Louis Airport to Santiago de los Caballeros Airport.

  • Can I find deals for flights from St. Louis to Santiago de los Caballeros that include extra baggage allowance?

    The amount of baggage you can bring depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from St. Louis to Santiago de los Caballeros with specific airlines?

    Yes, Cheapflights allows you to browse and filter flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

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

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

  • How can I find direct flights from St. Louis to Santiago de los Caballeros?

    After entering your origin and destination, apply the non-stop filter on the search result page to see available direct flights.

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

    Yes. Cheapflights offers flight deals from St. Louis 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.

  • Can I find deals for flights from St. Louis to Santiago de los Caballeros that allow pets onboard?

    Many airlines do offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • How recently were the St. Louis to Santiago de los Caballeros flight deals updated?

    The St. Louis to Santiago de los Caballeros flight deals you see on this page were last updated on 3/27.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from St. Louis to Santiago de los Caballeros

Discover the top 2 airlines that operate flights from St. Louis 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 3,238,496 searches. Data last updated March 28, 2024.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$193Average$849FlexibilityNo cancel feeOn-time65%
Search Spirit Airlines flights
American AirlinesCheapest$483Average$805FlexibilityNo cancel feeOn-time71%
Search American Airlines flights

Search flights from St. Louis to Santiago de los Caballeros by cabin class

Find flights from St. Louis to Santiago de los Caballeros, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from St. Louis to Santiago de los Caballeros?

Deals for St. Louis to Santiago de los Caballeros flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from St. Louis to Santiago de los Caballeros?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from St. Louis to Santiago de los Caballeros.

Can Cheapflights find flights from St. Louis to Santiago de los Caballeros with no change fees?

Need flexible booking options for your flight to Santiago de los Caballeros from St. Louis? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from St. Louis to Santiago de los Caballeros become cheaper?

Not ready to book yet? You can track prices for flights from St. Louis to Santiago de los Caballeros on Cheapflights with our Price Alert feature and get notified when better prices are available.

Can I find deals on last-minute flights from St. Louis to Santiago de los Caballeros?

Yes, you can often find last-minute deals on St. Louis to Santiago de los Caballeros flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

How can I compare prices from different travel booking sites for flights from St. Louis to Santiago de los Caballeros?

Cheapflights aggregates prices from various travel booking sites. This allows you to compare prices and choose the best deal.

Can I find deals for flights from St. Louis to Santiago de los Caballeros that offer flexible cancellation policies?

Cancellation policies vary by airline and fare type. After entering your flight details, you can view the cancellation policies for each deal in the search results. Some deals may offer flexibility in terms of cancellation and changes.

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