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

According to our current data, Delta ($558), United Airlines ($563), and American Airlines ($1,122) offers the cheapest pricing from St. Louis to Santiago de los Caballeros. Delta is currently priced 12% below the average price you’ll pay for this route.

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

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. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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 66% 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 May tends to be the cheapest month to fly to Santiago de los Caballeros from St. Louis. Users have commonly found prices around $639 for the month, but tickets can be as low as $414. Due to multiple factors, prepare for potentially higher prices in December.

What is the cheapest time of day to fly from STL to 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 3% on airfare.

Most accurate provider : When it comes to deals on St. Louis-Santiago de los Caballeros flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Santiago de los Caballeros flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Santiago de los Caballeros flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on St. Louis-Santiago de los Caballeros flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Santiago de los Caballeros flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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.

$177+ Flights from St. Louis to Santiago de los Caballeros

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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.

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

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Popular in	December
Cheapest in	May
Round-trip from	$530 (Kiwi.com)
One-way from	$177 (eDestinos)

Provider with most accurate pricing for Lambert-St Louis-Santiago de los Caballeros flight deals.

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Provider most trusted by Cheapflights users for Lambert-St Louis-Santiago de los Caballeros flights.

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High demand for flights, 28% potential price rise

Search Deals

Best time to find cheap flights, 27% potential price drop

Search Deals

From Lambert-St Louis to Santiago de los Caballeros

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One-way flight from Lambert-St Louis to Santiago de los Caballeros

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

Cheapest flights from St. Louis to Santiago de los Caballeros
Explore the most affordable flight options available from St. Louis to Santiago de los Caballeros. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 2, 2024.

Sun 12/155:02 pmSTL - STI

2 stops15h 02mMultiple Airlines

Sat 12/2110:54 amSTI - STL

1 stop8h 08mMultiple Airlines

Deal found 12/2

$679

Mon 12/25:40 pmSTL - STI

2 stops31h 04mUnited Airlines

Sun 12/84:00 pmSTI - STL

1 stop9h 28mUnited Airlines

Deal found 12/2

$901

Tue 12/107:15 amSTL - STI

2 stops11h 29mDelta

Sun 1/53:35 amSTI - STL

2 stops14h 09mDelta

Deal found 12/1

$1,105

Sun 12/155:15 amSTL - STI

1 stop6h 54mAmerican Airlines

Sat 12/215:10 pmSTI - STL

1 stop8h 41mAmerican Airlines

Deal found 12/2

$1,315

Sun 12/158:05 amSTL - STI

2 stops52h 44mCopa Airlines

Sat 12/213:44 pmSTI - STL

2 stops28h 07mCopa Airlines

Deal found 12/2

$1,572

Best flights from St. Louis to Santiago de los Caballeros
Discover carefully curated flight deals from St. Louis to Santiago de los Caballeros that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 2, 2024.

Wed 1/155:05 pmSTL - STI

2 stops17h 04mMultiple Airlines

Wed 1/2210:59 amSTI - STL

1 stop29h 44mMultiple Airlines

Deal found 12/1

$530

Wed 1/1512:00 pmSTL - STI

2 stops11h 33mDelta

Wed 1/226:35 amSTI - STL

2 stops14h 10mDelta

Deal found 12/1

$558

Wed 1/155:15 pmSTL - STI

1 stop7h 29mUnited Airlines

Wed 1/224:00 pmSTI - STL

1 stop9h 30mUnited Airlines

Deal found 12/1

$563

Thu 1/26:00 amSTL - STI

1 stop13h 55mAmerican Airlines

Tue 1/77:09 amSTI - STL

1 stop10h 59mAmerican Airlines

Deal found 12/1

$1,122

Sun 12/158:05 amSTL - STI

2 stops52h 44mCopa Airlines

Sat 12/213:44 pmSTI - STL

2 stops28h 07mCopa Airlines

Deal found 12/2

$1,572

Last-minute flights from St. Louis to Santiago de los Caballeros
Discover last-minute flight deals from St. Louis to Santiago de los Caballeros. Data last updated December 2, 2024 and is based on user searches.

Tue 12/104:26 pmSTL - STI

1 stop15h 38mMultiple Airlines

Mon 1/610:54 amSTI - STL

3 stops26h 51mMultiple Airlines

Deal found 12/1

$855

Tue 12/107:15 amSTL - STI

2 stops11h 29mDelta

Sun 1/53:35 amSTI - STL

2 stops14h 09mDelta

Deal found 12/1

$1,105

Tue 12/105:28 pmSTL - STI

1 stop7h 16mUnited Airlines

Mon 1/612:49 pmSTI - STL

1 stop9h 22mUnited Airlines

Deal found 12/1

$1,584

Sun 12/158:05 amSTL - STI

2 stops52h 44mCopa Airlines

Sat 12/213:44 pmSTI - STL

2 stops28h 07mCopa Airlines

Deal found 12/2

$1,572

Thu 1/26:00 amSTL - STI

1 stop13h 55mAmerican Airlines

Tue 1/77:09 amSTI - STL

1 stop10h 59mAmerican Airlines

Deal found 12/1

$1,122

Wed 1/155:05 pmSTL - STI

2 stops17h 04mMultiple Airlines

Wed 1/2210:59 amSTI - STL

1 stop29h 44mMultiple Airlines

Deal found 12/1

$530

Wed 1/1512:00 pmSTL - STI

2 stops11h 33mDelta

Wed 1/226:35 amSTI - STL

2 stops14h 10mDelta

Deal found 12/1

$558

Wed 1/155:15 pmSTL - STI

1 stop7h 29mUnited Airlines

Wed 1/224:00 pmSTI - STL

1 stop9h 30mUnited Airlines

Deal found 12/1

$563

One-way flights from St. Louis to Santiago de los Caballeros
Search for one-way flight options from St. Louis to Santiago de los Caballeros. Find affordable one-way fares based on user searches. Data last updated December 2, 2024.

Thu 1/94:28 pmSTL - STI

1 stop15h 35mSpirit Airlines

Deal found 12/1

$177

Fri 1/105:05 pmSTL - STI

3 stops41h 00mMultiple Airlines

Deal found 12/1

$282

Fri 1/109:44 amSTL - STI

2 stops15h 00mUnited Airlines

Deal found 12/1

$311

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

Fly from

Fly to

Route

Depart

Return

Price

St. LouisSantiago de los Caballeros

STL - STI

STLSTI

Lambert-St Louis

Wed 1/15

5:05 pm-12:09 pm

2 stops17h 04m

Santiago de los Caballeros

Wed 1/22

10:59 am-2:43 pm

1 stop29h 44m

$530

St. LouisSantiago de los Caballeros

STL - STI

STLSTI

Lambert-St Louis

Wed 1/15

12:00 pm-1:33 am

2 stops11h 33m

Santiago de los Caballeros

Wed 1/22

6:35 am-6:45 pm

2 stops14h 10m

$558

St. LouisSantiago de los Caballeros

STL - STI

STLSTI

Lambert-St Louis

Wed 1/15

5:15 pm-2:44 am

1 stop7h 29m

Santiago de los Caballeros

Wed 1/22

4:00 pm-11:30 pm

1 stop9h 30m

$563

St. LouisSantiago de los Caballeros

STL - STI

STLSTI

Lambert-St Louis

Thu 1/2

6:00 am-9:55 pm

1 stop13h 55m

Santiago de los Caballeros

Tue 1/7

7:09 am-4:08 pm

1 stop10h 59m

$1,122

St. LouisSantiago de los Caballeros

STL - STI

STLSTI

Lambert-St Louis

Sun 12/15

8:05 am-2:49 pm

2 stops52h 44m

Santiago de los Caballeros

Sat 12/21

3:44 pm-5:51 pm

2 stops28h 07m

$1,572

St. LouisSantiago de los Caballeros

STL - STI

STLSTI

Lambert-St Louis

Thu 1/9

4:28 pm-10:03 am

1 stop15h 35m

$177

St. LouisSantiago de los Caballeros

STL - STI

STLSTI

Lambert-St Louis

Fri 1/10

5:05 pm-12:05 pm

3 stops41h 00m

$282

St. LouisSantiago de los Caballeros

STL - STI

STLSTI

Lambert-St Louis

Fri 1/10

9:44 am-2:44 am

2 stops15h 00m

$311

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/1

Compare providers for flights from St. Louis to Santiago de los Caballeros

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Santiago de los Caballeros in December.

Provider	Price Accuracy	Trust Score*
eDreams	Price Accuracy3 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
AranGrant	Price Accuracy3 stars	Trust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on St. Louis-Santiago de los Caballeros flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Santiago de los Caballeros flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Santiago de los Caballeros flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on St. Louis-Santiago de los Caballeros flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Santiago de los Caballeros flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from St. Louis to Santiago de los Caballeros

Have a flexible travel schedule? Discover the best time to fly to Santiago de los Caballeros from St. Louis 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.

Travel insights for flights from St. Louis to Santiago de los Caballeros

Get recent, data-driven insights about flights from St. Louis to Santiago de los Caballeros including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from St. Louis to Santiago de los Caballeros?

Currently, May is the cheapest month in which you can book a flight from St. Louis to Santiago de los Caballeros (average of $347). Flying from St. Louis to Santiago de los Caballeros in July is currently the most expensive (average of $620). 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.

Rainfall in Santiago de los Caballeros by month

In terms of precipitation, rainfall in Santiago de los Caballeros ranges from 3.0 - 11.6 inches per month. December is typically the wettest month, when rainfall can reach 11.6 in. July is typically the driest time to visit Santiago de los Caballeros when rainfall is around 3.0 in.

Temperature in Santiago de los Caballeros by month

If weather is an important factor for your trip to Santiago de los Caballeros, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 73.4 F).

Reviews of airlines servicing Santiago de los Caballeros

Read through reviews of airlines operating flights from St. Louis to Santiago de los Caballeros, such as Delta and United 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.

Delta

8.0

Very good

8,698 reviews

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta

8.0

Very good

8,698 reviews

Delta

8.0

Very good

8,698 reviews

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Copa Airlines

7.7

Good

1,765 reviews

Delta

8.0

Very good

8,698 reviews

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines

7.4

Good

9,141 reviews

Delta

8.0

Very good

8,698 reviews

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

8,698 reviews

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Spirit Airlines

6.3

Okay

8,151 reviews

Delta

8.0

Very good

8,698 reviews

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

What are the cheapest airlines flying from St. Louis to Santiago de los Caballeros round-trip?
According to our current data, Delta ($558), United Airlines ($563), and American Airlines ($1,122) offers the cheapest pricing from St. Louis to Santiago de los Caballeros. Delta is currently priced 12% below the average price you’ll pay for this route.
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.
What is the cheapest month to book a flight from St. Louis to Santiago de los Caballeros?
Currently, May is the cheapest month in which you can book a flight from St. Louis to Santiago de los Caballeros (average of $347). Flying from St. Louis to Santiago de los Caballeros in July is currently the most expensive (average of $620). 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

Top airline flying from St. Louis to Santiago de los Caballeros

Airline	Cheapest	Average	Flexibility	On-time
American Airlines	Cheapest$405	Average$610	FlexibilityNo cancel fee	On-time71%

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$177+ Cheap flights from St. Louis (STL) 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 1/9. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from St. Louis to Santiago de los Caballeros with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

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

Most accurate provider

Most trusted provider

Popular in

Cheapest in

Round-trip from

One-way from

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

Cheapest flights from St. Louis to Santiago de los CaballerosExplore the most affordable flight options available from St. Louis to Santiago de los Caballeros. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 2, 2024.

Explore the most affordable flight options available from St. Louis to Santiago de los Caballeros. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 2, 2024.

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

Compare providers for flights from St. Louis to Santiago de los Caballeros

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Santiago de los Caballeros in December.

Best time to book a flight from St. Louis to Santiago de los Caballeros

Have a flexible travel schedule? Discover the best time to fly to Santiago de los Caballeros from St. Louis with our price prediction graph.

Travel insights for flights from St. Louis to Santiago de los Caballeros

Get recent, data-driven insights about flights from St. Louis to Santiago de los Caballeros including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from St. Louis to Santiago de los Caballeros?

Rainfall in Santiago de los Caballeros by month

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

Temperature in Santiago de los Caballeros by month

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

Reviews of airlines servicing Santiago de los Caballeros

Read through reviews of airlines operating flights from St. Louis to Santiago de los Caballeros, such as Delta and United 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.

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.

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

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

How can I 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?

What is the cheapest month to book a flight from St. Louis to Santiago de los Caballeros?

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.

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.

Top airline flying from St. Louis to Santiago de los Caballeros

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Book with Flexibility

Travel Smart

Cheapest flights from St. Louis to Santiago de los Caballeros
Explore the most affordable flight options available from St. Louis to Santiago de los Caballeros. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 2, 2024.