STL - STI

$620 Find Cheap Flights from St. Louis to Santiago de los Caballeros - Compare and Save

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Everything you should know

Cheapest round-trip
$620
Typical prices: $607-$780
American Airlines
Mon 2/26Sat 3/3
STL - STI • 1 stop
Cheapest one-way
$443
Typical prices: $300-$370
American Airlines
Tue 10/2
STL - STI • 1 stop
Nonstop flights
Not available
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.
Insights
Insights
When to travel
November
Cheapest • 5% price drop
August
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Newark (EWR)
Cheapest • Avg $699 (round-trip)
Miami (MIA)
Shortest trip • 9h 04m (one-way)
Insights
Insights
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We hope you love your trip to Santiago de los Caballeros!
Flight Deals
Booking Insights
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

Fri, Feb 26 - Wed, Mar 3
American Airlines Logo
11:19 am - 10:04 pmSTL  Lambert-St Louis-STI Santiago de los Caballeros
8h 45m1 stop Miami
American Airlines Logo
8:00 am - 10:05 pmSTI  Santiago de los Caballeros-STL Lambert-St Louis
16h 05m1 stop Miami
$620American Airlines
Thu, Mar 4 - Tue, Mar 9
American Airlines Logo
5:00 am - 1:30 pmSTL  Lambert-St Louis-STI Santiago de los Caballeros
6h 30m1 stop Miami
American Airlines Logo
8:00 am - 5:33 pmSTI  Santiago de los Caballeros-STL Lambert-St Louis
11h 33m1 stop Miami
$620American Airlines
Thu, Mar 4 - Tue, Mar 9
American Airlines Logo
5:00 am - 9:29 pmSTL  Lambert-St Louis-STI Santiago de los Caballeros
14h 29m1 stop Miami
American Airlines Logo
8:00 am - 6:07 pmSTI  Santiago de los Caballeros-STL Lambert-St Louis
12h 07m2 stops Miami Charlotte Douglas
$625American Airlines
Thu, Mar 4 - Tue, Mar 9
American Airlines Logo
6:00 am - 9:29 pmSTL  Lambert-St Louis-STI Santiago de los Caballeros
13h 29m2 stops Washington, D.C. Reagan-National Miami
American Airlines Logo
2:30 pm - 11:58 pmSTI  Santiago de los Caballeros-STL Lambert-St Louis
11h 28m2 stops Miami Chicago O'Hare Intl
$625American Airlines
Fri, Feb 26 - Wed, Mar 3
American Airlines Logo
6:04 am - 10:04 pmSTL  Lambert-St Louis-STI Santiago de los Caballeros
14h 00m2 stops Washington, D.C. Reagan-National Miami
American Airlines Logo
8:00 am - 6:11 pmSTI  Santiago de los Caballeros-STL Lambert-St Louis
12h 11m2 stops Miami Dallas/Fort Worth
$625American Airlines
Fri, Feb 26 - Wed, Mar 3
American Airlines Logo
5:00 am - 10:04 pmSTL  Lambert-St Louis-STI Santiago de los Caballeros
15h 04m2 stops Dallas/Fort Worth Miami
American Airlines Logo
8:00 am - 10:05 pmSTI  Santiago de los Caballeros-STL Lambert-St Louis
16h 05m1 stop Miami
$625American Airlines
Thu, Oct 1 - Mon, Oct 12
American Airlines Logo
5:13 pm - 2:15 pmSTL  Lambert-St Louis-STI Santiago de los Caballeros
20h 02m2 stops Washington, D.C. Reagan-National Miami
American Airlines Logo
3:12 pm - 10:50 amSTI  Santiago de los Caballeros-STL Lambert-St Louis
20h 38m2 stops Miami Chicago O'Hare Intl
$772American Airlines
Thu, Oct 1 - Mon, Oct 12
American Airlines Logo
5:18 pm - 2:15 pmSTL  Lambert-St Louis-STI Santiago de los Caballeros
19h 57m2 stops Chicago O'Hare Intl Miami
American Airlines Logo
3:12 pm - 9:59 pmSTI  Santiago de los Caballeros-STL Lambert-St Louis
7h 47m1 stop Miami
$772American Airlines
Wed, Sep 30 - Mon, Oct 5
United Airlines Logo
9:30 am - 10:52 pmSTL  Lambert-St Louis-STI Santiago de los Caballeros
12h 22m1 stop Newark
United Airlines Logo
6:00 am - 8:48 amSTI  Santiago de los Caballeros-STL Lambert-St Louis
27h 48m1 stop Newark
$889United Airlines
Wed, Sep 30 - Mon, Oct 5
United Airlines Logo
9:30 am - 10:52 pmSTL  Lambert-St Louis-STI Santiago de los Caballeros
12h 22m1 stop Newark
United Airlines Logo
6:00 am - 8:48 amSTI  Santiago de los Caballeros-STL Lambert-St Louis
27h 48m1 stop Newark
$889United 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 from St. Louis to Santiago de los Caballeros 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 start at $620. Prices are typical for this route right now, with typical round-trip fares ranging from $607 to $780. The lowest price found in the past 5 days was $620 on American Airlines.

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

Low season

March

Cheapest flight

$443
Most popular time to fly with an average 23% increase in price.
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 route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • 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).

  • 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.

  • 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) - 66% of one-stop connections
    • Miami (MIA) - 34% of one-stop connections
    Together, these airports account for 100% of one-stop bookings on this route.

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

    Yes. Being flexible with your travel dates can save you up to 29% on the St. Louis to Santiago de los Caballeros route. Wednesday is the cheapest departure day at $559 round-trip on average, while Sunday is the most expensive at $780, a difference of $221. 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 long is a flight from St. Louis to Santiago de los Caballeros?

    A nonstop flight from St. Louis to Santiago de los Caballeros takes 0h 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.

  • 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 varied from about $620 to $965. That means the highest observed fare was about 55% 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 higher than usual. Average one-way flight prices are about $465, which is 40% above the typical average for this route.

  • 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 32m, compared with 9h 04m 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.

  • 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 starting from around $9 for economy cars. Top options include:
    • Zezgo
    • America Car Rental
    • Infinity Car Rental
    • Alamo
    • Europcar

  • 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 $607 to $780, with an average of $636 over the past 12 months. Anything below $607 counts as a good deal.

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 can be flexible, aim for a Wednesday departure instead of Sunday. On this route, Wednesday flights average $559 - about $221 less than Sunday (28% 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

Car rentals in Santiago de los Caballeros
Hotels in Santiago de los Caballeros