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Cheap flights from St. Louis (STL) to Santiago de los Caballeros (STI) from $231

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 5/7. 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
May 6 — May 131
From?
To?
Mon 5/6
Mon 5/13
1 adult, Economy
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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 May 1, 2024.

Popular in

November

Cheapest in

April

Average price

$838

Round-trip from

$326
High demand for flights, 38% potential price rise
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Best time to find cheap flights, 75% potential price drop
Search Deals
Average for round-trip flights in May 2024
Search Deals
From Lambert-St Louis to Santiago de los Caballeros
Search Deals

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 111% 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 44% on airfare.

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 2,913,887 searches. Data last updated May 1, 2024.
Take a look at some of the lowest-priced Spirit 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.
Tue 5/710:34 amSTL - STI
1 stop14h 13mSpirit Airlines
Fri 5/102:59 amSTI - STL
1 stop14h 26mSpirit Airlines
Deal found 4/29$231
Sat 5/185:15 pmSTL - STI
1 stop7h 44mSpirit Airlines
Thu 5/302:59 amSTI - STL
2 stops32h 29mSpirit Airlines
Deal found 4/30$315
Thu 5/166:19 pmSTL - STI
1 stop6h 40mSpirit Airlines
Mon 5/272:59 amSTI - STL
1 stop7h 40mSpirit Airlines
Deal found 4/30$338
Tue 5/72:35 pmSTL - STI
2 stops10h 12mSpirit Airlines
Fri 5/102:59 amSTI - STL
1 stop14h 26mSpirit Airlines
Deal found 4/29$349
Sat 5/1811:39 amSTL - STI
2 stops13h 20mSpirit Airlines
Thu 5/302:59 amSTI - STL
2 stops32h 29mSpirit Airlines
Deal found 4/30$364
Thu 5/167:30 pmSTL - STI
2 stops29h 29mSpirit Airlines
Mon 5/272:59 amSTI - STL
1 stop7h 40mSpirit Airlines
Deal found 4/30$413

Cheap Delta flights from St. Louis to Santiago de los Caballeros

Explore cheap flight options specifically provided by Delta 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 2,913,887 searches. Data last updated May 1, 2024.
Some of the best deals we've found on Delta flights traveling from St. Louis to Santiago de los Caballeros. Deals are refreshing constantly so come back soon for more options.
Tue 5/77:10 amSTL - STI
2 stops16h 46mDelta
Sat 5/111:35 pmSTI - STL
2 stops20h 19mDelta
Deal found 4/29$400
Tue 5/77:10 amSTL - STI
2 stops16h 46mDelta
Sat 5/116:15 amSTI - STL
2 stops18h 25mDelta
Deal found 4/30$410

Cheap St. Louis to Santiago de los Caballeros flights in May & June 2024

Find cheap flight options from St. Louis to Santiago de los Caballeros specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,913,887 searches. Prices were last updated on May 1, 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.
Tue 5/710:34 amSTL - STI
1 stop14h 13mSpirit Airlines
Fri 5/102:59 amSTI - STL
1 stop14h 26mSpirit Airlines
Deal found 4/29$231
Sat 5/185:15 pmSTL - STI
1 stop7h 44mSpirit Airlines
Thu 5/302:59 amSTI - STL
2 stops32h 29mSpirit Airlines
Deal found 5/1$314
Sat 5/185:15 pmSTL - STI
1 stop7h 44mSpirit Airlines
Thu 5/302:59 amSTI - STL
2 stops32h 29mSpirit Airlines
Deal found 4/30$315
Thu 5/166:19 pmSTL - STI
1 stop6h 40mSpirit Airlines
Mon 5/272:59 amSTI - STL
1 stop7h 40mSpirit Airlines
Deal found 4/30$338
Tue 5/72:35 pmSTL - STI
2 stops10h 12mSpirit Airlines
Fri 5/102:59 amSTI - STL
1 stop14h 26mSpirit Airlines
Deal found 4/29$349
Fri 5/177:44 pmSTL - STI
3 stops29h 15mMultiple Airlines
Fri 5/242:59 amSTI - STL
1 stop14h 26mMultiple Airlines
Deal found 4/30$358
Sat 5/1811:39 amSTL - STI
2 stops13h 20mSpirit Airlines
Thu 5/302:59 amSTI - STL
2 stops32h 29mSpirit Airlines
Deal found 4/30$364
Sat 5/1811:39 amSTL - STI
2 stops13h 20mSpirit Airlines
Thu 5/302:59 amSTI - STL
2 stops32h 29mSpirit Airlines
Deal found 5/1$382
Tue 5/77:10 amSTL - STI
2 stops16h 46mDelta
Sat 5/111:35 pmSTI - STL
2 stops20h 19mDelta
Deal found 4/29$400

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 2,913,887 searches. Data last updated May 1, 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.
Tue 5/710:34 amSTL - STI
1 stop14h 13mSpirit Airlines
Fri 5/102:59 amSTI - STL
1 stop14h 26mSpirit Airlines
Deal found 4/29$231
Sat 5/185:15 pmSTL - STI
1 stop7h 44mSpirit Airlines
Thu 5/302:59 amSTI - STL
2 stops32h 29mSpirit Airlines
Deal found 5/1$314
Sat 5/185:15 pmSTL - STI
1 stop7h 44mSpirit Airlines
Thu 5/302:59 amSTI - STL
2 stops32h 29mSpirit Airlines
Deal found 4/30$315
Thu 5/166:19 pmSTL - STI
1 stop6h 40mSpirit Airlines
Mon 5/272:59 amSTI - STL
1 stop7h 40mSpirit Airlines
Deal found 4/30$338
Tue 5/72:35 pmSTL - STI
2 stops10h 12mSpirit Airlines
Fri 5/102:59 amSTI - STL
1 stop14h 26mSpirit Airlines
Deal found 4/29$349
Fri 5/177:44 pmSTL - STI
3 stops29h 15mMultiple Airlines
Fri 5/242:59 amSTI - STL
1 stop14h 26mMultiple Airlines
Deal found 4/30$358
Sat 5/1811:39 amSTL - STI
2 stops13h 20mSpirit Airlines
Thu 5/302:59 amSTI - STL
2 stops32h 29mSpirit Airlines
Deal found 4/30$364
Sat 5/1811:39 amSTL - STI
2 stops13h 20mSpirit Airlines
Thu 5/302:59 amSTI - STL
2 stops32h 29mSpirit Airlines
Deal found 5/1$382
Tue 5/77:10 amSTL - STI
2 stops16h 46mDelta
Sat 5/111:35 pmSTI - STL
2 stops20h 19mDelta
Deal found 4/29$400

St. Louis to Santiago de los Caballeros flights leaving soon

Find last-minute flight options from St. Louis to Santiago de los Caballeros for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,913,887 searches. Data last updated May 1, 2024.
Check out these flights departing soon from St. Louis to Santiago de los Caballeros. To prevent any unwanted surprises, users should verify their flight info before booking.
Tue 5/710:34 amSTL - STI
1 stop14h 13mSpirit Airlines
Fri 5/102:59 amSTI - STL
1 stop14h 26mSpirit Airlines
Deal found 4/29$231
Tue 5/72:35 pmSTL - STI
2 stops10h 12mSpirit Airlines
Fri 5/102:59 amSTI - STL
1 stop14h 26mSpirit Airlines
Deal found 4/29$349
Tue 5/77:10 amSTL - STI
2 stops16h 46mDelta
Sat 5/111:35 pmSTI - STL
2 stops20h 19mDelta
Deal found 4/29$400
Tue 5/77:10 amSTL - STI
2 stops16h 46mDelta
Sat 5/116:15 amSTI - STL
2 stops18h 25mDelta
Deal found 4/30$410
Tue 5/75:19 amSTL - STI
1 stop6h 06mAmerican Airlines
Sat 5/114:39 pmSTI - STL
1 stop7h 40mAmerican Airlines
Deal found 4/29$497
Tue 5/75:04 amSTL - STI
2 stops10h 06mAmerican Airlines
Sat 5/111:25 pmSTI - STL
1 stop10h 54mAmerican Airlines
Deal found 4/29$500

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 2,913,887 searches. Data last updated May 1, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$315 - $730

Route

Depart

Return

Price

Lambert-St LouisSantiago de los Caballeros

STL - STI

STLSTI

Lambert-St Louis

Sat 5/18

1 stop7h 44m

Santiago de los Caballeros

Thu 5/30

2 stops32h 29m

$315

Lambert-St LouisSantiago de los Caballeros

STL - STI

STLSTI

Lambert-St Louis

Thu 5/16

1 stop6h 40m

Santiago de los Caballeros

Mon 5/27

1 stop7h 40m

$338

Lambert-St LouisSantiago de los Caballeros

STL - STI

STLSTI

Lambert-St Louis

Fri 5/17

3 stops29h 15m

Santiago de los Caballeros

Fri 5/24

1 stop14h 26m

$358

Lambert-St LouisSantiago de los Caballeros

STL - STI

STLSTI

Lambert-St Louis

Sat 5/18

2 stops13h 20m

Santiago de los Caballeros

Thu 5/30

2 stops32h 29m

$364

Lambert-St LouisSantiago de los Caballeros

STL - STI

STLSTI

Lambert-St Louis

Sat 5/18

2 stops16h 05m

Santiago de los Caballeros

Fri 5/31

2 stops17h 43m

$409

Lambert-St LouisSantiago de los Caballeros

STL - STI

STLSTI

Lambert-St Louis

Fri 5/17

1 stop18h 37m

Santiago de los Caballeros

Sat 5/25

2 stops18h 58m

$411

Lambert-St LouisSantiago de los Caballeros

STL - STI

STLSTI

Lambert-St Louis

Thu 5/16

2 stops29h 29m

Santiago de los Caballeros

Mon 5/27

1 stop7h 40m

$413

Lambert-St LouisSantiago de los Caballeros

STL - STI

STLSTI

Lambert-St Louis

Wed 5/22

2 stops27h 49m

Santiago de los Caballeros

Sat 6/1

1 stop15h 30m

$468

Lambert-St LouisSantiago de los Caballeros

STL - STI

STLSTI

Lambert-St Louis

Wed 7/17

1 stop8h 04m

Santiago de los Caballeros

Tue 7/23

1 stop9h 30m

$730

Flights are sorted by cheapest first

Deals found on 4/30

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 April 28, 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. Saturday 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 $423. Price data was last updated on April 28, 2024.

Currently, September is the cheapest month in which you can book a flight from St. Louis to Santiago de los Caballeros (average of $326). 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

$388

May

$363

June

$406

July

$562

August

$452

September

$326

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 May 1, 2024.
Read through reviews of airlines operating flights from St. Louis to Santiago de los Caballeros, such as Spirit Airlines, Delta and American 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.
United Airlines
7.4
Good
11,159 reviews
Check prices

Entertainment

7.1

Boarding

7.7

Comfort

7.2

Crew

8.1

Overall

7.4

Food

6.7

Reviews

1 / 10

The staff were pleasant. There was no food or entertainment.

United Airlines
7.4
Good
11,159 reviews
United Airlines
7.4
Good
11,159 reviews
Check prices

Entertainment

7.1

Boarding

7.7

Comfort

7.2

Crew

8.1

Overall

7.4

Food

6.7

Reviews

1 / 10

The staff were pleasant. There was no food or entertainment.

American Airlines
7.3
Good
14,788 reviews
United Airlines
7.4
Good
11,159 reviews
Check prices

Entertainment

7.1

Boarding

7.7

Comfort

7.2

Crew

8.1

Overall

7.4

Food

6.7

Reviews

1 / 10

The staff were pleasant. There was no food or entertainment.

Spirit Airlines
6.4
Okay
8,741 reviews
United Airlines
7.4
Good
11,159 reviews
Check prices

Entertainment

7.1

Boarding

7.7

Comfort

7.2

Crew

8.1

Overall

7.4

Food

6.7

Reviews

1 / 10

The staff were pleasant. There was no food or entertainment.

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 $400 on Cheapflights?

    Yes, there are multiple flights from St. Louis to Santiago de los Caballeros for under $400. The cheapest flight booked recently is on Spirit Airlines for just $315, but on average you can expect to pay $452.

  • Are there last-minute flights available from St. Louis to Santiago de los Caballeros for under $300?

    There are currently 6+ open flights from St. Louis to Santiago de los Caballeros within the next 7 days for less than $300.

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

    According to our current data, Spirit Airlines ($315), American Airlines ($409), and United Airlines ($730) offers the cheapest pricing from St. Louis to Santiago de los Caballeros. Spirit Airlines is currently priced 59% 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 on your St. Louis to Santiago de los Caballeros flight 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 St. Louis to Santiago de los Caballeros 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 find direct flights from St. Louis to Santiago de los Caballeros.

  • 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 flying from St. Louis to Santiago de los Caballeros 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.

  • 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 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 5/1.

See more FAQs

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Alternative routes for St. Louis to Santiago de los Caballeros
See prices for flight routes from nearby airports that may be better suited for you.

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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 2,913,887 searches. Data last updated May 1, 2024.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$193Average$849FlexibilityNo cancel feeOn-time65%
Search Spirit Airlines flights
American AirlinesCheapest$414Average$767FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
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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.
First Class
Business Class
Prem Econ Class
Economy Class

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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.

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