STL - STI

$316 Find Cheap Flights from St. Louis to Santiago de los Caballeros - Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$705
Typical prices: $636-$780
United Airlines
Fri 11/16Sat 12/15
STL - STI • 1 stop
Cheapest one-way
$316
Typical prices: $332-$428
Multiple Airlines
Tue 12/4
STL - STI • 3 stops
Nonstop flights
There are currently no direct flights between St. Louis and Santiago de los Caballeros. You'll need to take a connecting flight to reach the destination.
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Insights
When to travel
Cheapest • 6% price drop
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Cheapest • Avg $724 (round-trip)
Shortest trip • 9h 06m (one-way)
Insights
Insights
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We hope you love your trip to Santiago de los Caballeros!
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Flight Deals

Cheap Flights from St. Louis to Santiago de los Caballeros (STL-STI)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from St. Louis to Santiago de los Caballeros

Mon, Nov 16 - Tue, Dec 15
United Airlines Logo
9:59 am - 11:51 pmSTL  Lambert-St Louis-STI Santiago de los Caballeros
11h 52m1 stop Newark
United Airlines Logo
12:55 pm - 10:15 pmSTI  Santiago de los Caballeros-STL Lambert-St Louis
11h 20m1 stop Newark
$705United Airlines
Mon, Nov 16 - Tue, Dec 15
United Airlines Logo
9:40 am - 11:51 pmSTL  Lambert-St Louis-STI Santiago de los Caballeros
12h 11m2 stops Chicago O'Hare Intl Newark
United Airlines Logo
6:00 am - 4:24 pmSTI  Santiago de los Caballeros-STL Lambert-St Louis
12h 24m1 stop Newark
$710United Airlines
Mon, Nov 16 - Tue, Dec 15
United Airlines Logo
10:53 am - 11:51 pmSTL  Lambert-St Louis-STI Santiago de los Caballeros
10h 58m2 stops Chicago O'Hare Intl Newark
United Airlines Logo
6:00 am - 4:36 pmSTI  Santiago de los Caballeros-STL Lambert-St Louis
12h 36m2 stops Newark Chicago O'Hare Intl
$710United Airlines
Tue, Nov 17 - Wed, Dec 16
Delta Logo
10:00 am - 12:59 amSTL  Lambert-St Louis-STI Santiago de los Caballeros
12h 59m1 stop New York LaGuardia
Delta Logo
7:00 am - 3:54 pmSTI  Santiago de los Caballeros-STL Lambert-St Louis
10h 54m1 stop New York John F Kennedy Intl
$737Delta
Tue, Nov 17 - Thu, Dec 17
Delta Logo
1:02 pm - 12:59 amSTL  Lambert-St Louis-STI Santiago de los Caballeros
9h 57m1 stop New York LaGuardia
Delta Logo
9:25 pm - 11:51 amSTI  Santiago de los Caballeros-STL Lambert-St Louis
16h 26m1 stop New York John F Kennedy Intl
$737Delta
Mon, Nov 16 - Fri, Dec 18
Delta Logo
10:00 am - 12:59 amSTL  Lambert-St Louis-STI Santiago de los Caballeros
12h 59m1 stop New York LaGuardia
Delta Logo
7:00 am - 8:28 pmSTI  Santiago de los Caballeros-STL Lambert-St Louis
15h 28m1 stop New York John F Kennedy Intl
$737Delta
Fri, Dec 11 - Fri, Dec 18
American Airlines Logo
6:15 pm - 1:24 pmSTL  Lambert-St Louis-STI Santiago de los Caballeros
17h 09m1 stop Miami
American Airlines Logo
6:00 am - 11:36 amSTI  Santiago de los Caballeros-STL Lambert-St Louis
7h 36m1 stop Miami
$755American Airlines
Fri, Dec 11 - Fri, Dec 18
American Airlines Logo
6:15 pm - 1:24 pmSTL  Lambert-St Louis-STI Santiago de los Caballeros
17h 09m1 stop Miami
American Airlines Logo
5:08 pm - 8:29 amSTI  Santiago de los Caballeros-STL Lambert-St Louis
17h 21m2 stops Miami Chicago O'Hare Intl
$760American Airlines
Sun, Nov 15 - Tue, Dec 15
United Airlines Logo
9:59 am - 11:51 pmSTL  Lambert-St Louis-STI Santiago de los Caballeros
11h 52m1 stop Newark
United Airlines Logo
6:00 am - 4:24 pmSTI  Santiago de los Caballeros-STL Lambert-St Louis
12h 24m1 stop Newark
$763United Airlines
Sun, Nov 15 - Tue, Dec 15
American Airlines Logo
3:52 pm - 1:26 pmSTL  Lambert-St Louis-STI Santiago de los Caballeros
19h 34m2 stops Washington, D.C. Reagan-National Miami
American Airlines Logo
5:02 pm - 1:55 pmSTI  Santiago de los Caballeros-STL Lambert-St Louis
22h 53m2 stops Miami Dallas/Fort Worth
$774American Airlines
Booking Insights

Price, demand and travel trends for St. Louis to Santiago de los Caballeros flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

How much is a round-trip flight from St. Louis to Santiago de los Caballeros?

Round-trip flights from St. Louis to Santiago de los Caballeros typically range from $636 to $780. The lowest price found in the past 5 days was $705, on United Airlines.

Key details for St. Louis to Santiago de los Caballeros flights

Low season

March

Cheapest flight

$316
Beat the crowds with an average 92% drop in travelers.
The most popular month to fly with an average 28% increase in travelers.
One-way flight from St. Louis to Santiago de los Caballeros

When to book flights from St. Louis to Santiago de los Caballeros

Are your dates flexible? Find out the best times to travel from St. Louis 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

Your St. Louis to Santiago de los Caballeros flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What cabin classes can I book on flights from St. Louis to Santiago de los Caballeros?

    Only Economy Class is available on flights from St. Louis to Santiago de los Caballeros.

  • How long is a flight from St. Louis to Santiago de los Caballeros?

    A nonstop flight from St. Louis to Santiago de los Caballeros takes 00m, covering 1,782 miles.

  • Do I need a passport to fly from St. Louis to Santiago de los Caballeros?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a St. Louis to Santiago de los Caballeros flight?

    Round-trip flights from St. Louis to Santiago de los Caballeros range from $636 to $780, with an average of $648 over the past 12 months. Anything below $636 counts as a good deal.

  • Have flight prices from St. Louis to Santiago de los Caballeros changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $705 to $1,813. That means the highest observed fare was about 3x higher than the lowest one.

  • How are flight prices from St. Louis to Santiago de los Caballeros looking right now?

    One-way fares from St. Louis to Santiago de los Caballeros are currently in line with typical prices for this route. Average one-way fares are about $378.

  • What car rental options are available at Santiago de los Caballeros Airport (STI)?

    Santiago de los Caballeros Airport (STI) hosts 5 major car rental companies, with daily rates averaging $33 for economy cars. Top options include:

    • Zezgo
    • America Car Rental
    • Alamo
    • Infinity Car Rental
    • Europcar

  • Which airports can I use when flying from St. Louis to Santiago de los Caballeros?

    Flights from St. Louis to Santiago de los Caballeros usually depart from Lambert-St Louis (STL) and arrive at Santiago de los Caballeros (STI).

  • Which airports do connecting flights from St. Louis to Santiago de los Caballeros pass through?

    Connecting flights from St. Louis to Santiago de los Caballeros most commonly pass through:

    • Newark (EWR) - 69% of one-stop connections
    • Miami (MIA) - 31% of one-stop connections

  • Can I save money by using flexible dates for flights from St. Louis to Santiago de los Caballeros?

    Yes. Flexible dates can save you up to 19% on flights from St. Louis to Santiago de los Caballeros. Thursday is the cheapest departure day at $636 round-trip on average, while Sunday is the most expensive at $780, a difference of $144.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • How much time can I save by choosing a different layover airport from St. Louis to Santiago de los Caballeros?

    Flying via Newark (EWR) gives the shortest average 1-stop total travel time at 8h 36m, compared with 9h 06m via Miami (MIA).

  • What is the time difference between St. Louis and Santiago de los Caballeros?

    Santiago de los Caballeros is 1 hour ahead of St. Louis (Atlantic Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.

Your guide to booking St. Louis to Santiago de los Caballeros flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Thursday departure and avoid flying on Sunday. On this route, Thursday flights average $636, about $144 less than Sunday fares (18% savings) based on the last 12 months.
  • If you can choose when to travel, plan your St. Louis to Santiago de los Caballeros trip for November. Fares historically average $607 round-trip in that month - typically $236 less than the most expensive month, which is July (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Santiago de los Caballeros Airport.

    • Hodelpa Garden Court

More options for your flight from St. Louis to Santiago de los Caballeros

Complete your trip to Santiago de los Caballeros with a hotel stay or car rental