$294+ Cheap flights from Austin (AUS) to Santiago de los Caballeros (STI)
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 9/20. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — STI
Oct 17 — Oct 241
Round-trip
1 adult, Economy
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Find cheap flights from Austin to Santiago de los Caballeros with Cheapflights
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 Austin to Santiago de los Caballeros
Cheapest
Best
Last-minute
One-way
Cheapest flights from Austin to Santiago de los CaballerosExplore the most affordable flight options available from Austin to Santiago de los Caballeros. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2026.
Explore the most affordable flight options available from Austin to Santiago de los Caballeros. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2026.
This Delta deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/211:40 am -
1 stop11h 14m
Tue 12/87:00 am -
1 stop11h 57m
Deal found 9/15![Delta logo]()
$444
This Delta deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/212:10 pm -
2 stops10h 44m
Mon 12/77:00 am -
1 stop11h 57m
Deal found 9/15![Delta logo]()
$449
This American Airlines deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/75:00 am -
1 stop8h 12m
Wed 10/143:12 pm -
2 stops19h 20m
Deal found 9/12![American Airlines logo]()
$454
This United Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/16:20 am -
1 stop15h 31m
Tue 12/86:00 am -
1 stop10h 27m
Deal found 9/15![United Airlines logo]()
$458
This United Airlines deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/249:53 am -
2 stops11h 59m
Sat 10/315:00 am -
2 stops15h 04m
Deal found 9/13![United Airlines logo]()
$459
This American Airlines deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/64:29 pm -
2 stops20h 43m
Tue 10/133:12 pm -
2 stops19h 20m
Deal found 9/16![American Airlines logo]()
$465
This Delta deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/212:10 pm -
2 stops10h 44m
Wed 12/97:00 am -
2 stops12h 37m
Deal found 9/13![Delta logo]()
$469
This JetBlue deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/76:20 am -
1 stop6h 07m
Wed 10/143:57 pm -
1 stop8h 12m
Deal found 9/13![JetBlue logo]()
$474
This JetBlue deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/110:35 am -
1 stop12h 22m
Mon 12/74:15 pm -
1 stop8h 58m
Deal found 9/15![JetBlue logo]()
$494
Best flights from Austin to Santiago de los CaballerosDiscover carefully curated flight deals from Austin 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 September 17, 2026.
Discover carefully curated flight deals from Austin 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 September 17, 2026.
This Delta deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/211:40 am -
1 stop11h 14m
Mon 12/77:00 am -
1 stop18h 08m
Deal found 9/15![Delta logo]()
$444
This JetBlue deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/110:35 am -
1 stop12h 22m
Tue 12/86:01 am -
1 stop10h 25m
Deal found 9/12![JetBlue logo]()
$444
This American Airlines deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/13:56 pm -
2 stops22h 12m
Tue 12/85:08 pm -
2 stops23h 05m
Deal found 9/12![American Airlines logo]()
$449
This United Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/16:20 am -
1 stop15h 31m
Tue 12/812:55 pm -
1 stop9h 57m
Deal found 9/15![United Airlines logo]()
$472
This Delta deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/211:40 am -
1 stop11h 14m
Wed 12/97:00 am -
2 stops13h 29m
Deal found 9/15![Delta logo]()
$449
This JetBlue deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/76:20 am -
1 stop6h 07m
Wed 10/143:57 pm -
1 stop8h 12m
Deal found 9/13![JetBlue logo]()
$474
This American Airlines deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/58:24 pm -
2 stops16h 48m
Tue 10/133:12 pm -
2 stops19h 20m
Deal found 9/16![American Airlines logo]()
$509
This JetBlue deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/56:20 am -
1 stop6h 07m
Mon 10/123:57 pm -
1 stop8h 12m
Deal found 9/16![JetBlue logo]()
$534
This JetBlue deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/26:20 am -
1 stop6h 07m
Tue 10/63:30 pm -
1 stop7h 55m
Deal found 9/12![JetBlue logo]()
$534
This Priceline deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/87:30 pm -
1 stop10h 35m
Thu 10/153:57 pm -
1 stop8h 12m
Deal found 9/16![JetBlue logo]()
$544
Last-minute flights from Austin to Santiago de los CaballerosDiscover last-minute flight deals from Austin to Santiago de los Caballeros. Data last updated September 17, 2026 and is based on user searches.
Discover last-minute flight deals from Austin to Santiago de los Caballeros. Data last updated September 17, 2026 and is based on user searches.
This JetBlue deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/56:20 am -
1 stop6h 07m
Mon 10/123:57 pm -
1 stop8h 12m
Deal found 9/15![JetBlue logo]()
$504
This American Airlines deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/58:24 pm -
2 stops16h 48m
Tue 10/133:12 pm -
2 stops19h 20m
Deal found 9/16![American Airlines logo]()
$509
This American Airlines deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/67:05 am -
1 stop6h 07m
Tue 10/133:12 pm -
2 stops20h 26m
Deal found 9/16![American Airlines logo]()
$449
This Delta deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/67:30 am -
1 stop9h 03m
Tue 10/137:05 pm -
1 stop16h 08m
Deal found 9/15![Delta logo]()
$520
This American Airlines deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/75:00 am -
1 stop8h 12m
Wed 10/143:12 pm -
2 stops19h 20m
Deal found 9/12![American Airlines logo]()
$454
This JetBlue deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/76:20 am -
1 stop6h 07m
Wed 10/143:57 pm -
1 stop8h 12m
Deal found 9/13![JetBlue logo]()
$474
This Expedia deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/107:30 pm -
1 stop10h 35m
Sat 10/243:57 pm -
1 stop8h 12m
Deal found 9/16![JetBlue logo]()
$444
This United Airlines deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/249:53 am -
2 stops11h 59m
Sat 10/315:00 am -
2 stops15h 04m
Deal found 9/13![United Airlines logo]()
$459
One-way flights from Austin to Santiago de los CaballerosSearch for one-way flight options from Austin to Santiago de los Caballeros. Find affordable one-way fares based on user searches. Data last updated September 17, 2026.
Search for one-way flight options from Austin to Santiago de los Caballeros. Find affordable one-way fares based on user searches. Data last updated September 17, 2026.
This United Airlines deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/205:30 am -
2 stops16h 22m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![United Airlines logo]()
$294
This Kiwi.com deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2010:58 am -
3 stops27h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![Multiple Airlines logo]()
$525
Find flight deals from Austin to Santiago de los Caballeros
Discover tips and strategies to find the most affordable flight options for your journey from Austin (AUS) 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 September 17, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $444 (Delta) |
One-way from | $294 (United Airlines) |
Popular in | December |
Cheapest in | February |
Average price | $796 |
Cheapflights Fare Finder
Customize your flight search to find flights from Austin 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 7,457,451 searches. Data last updated September 17, 2026.
Use the filters below to find and compare flights from Austin to Santiago de los Caballeros that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
AustinSantiago de los Caballeros
AUS Austin Bergstrom - STI Santiago de los Caballeros
AUSSTI
Austin Bergstrom
Sun 9/20
5:30 am-10:52 pm
2 stops16h 22m
Santiago de los Caballeros
Wed 12/31
12:00 am-10:30 pm
Nonstop0h 00m
$294
AustinSantiago de los Caballeros
AUS Austin Bergstrom - STI Santiago de los Caballeros
AUSSTI
Austin Bergstrom
Wed 12/2
11:40 am-12:54 am
1 stop11h 14m
Santiago de los Caballeros
Mon 12/7
7:00 am-11:08 pm
1 stop18h 08m
$444
AustinSantiago de los Caballeros
AUS Austin Bergstrom - STI Santiago de los Caballeros
AUSSTI
Austin Bergstrom
Tue 12/1
10:35 am-12:57 am
1 stop12h 22m
Santiago de los Caballeros
Tue 12/8
6:01 am-2:26 pm
1 stop10h 25m
$444
AustinSantiago de los Caballeros
AUS Austin Bergstrom - STI Santiago de los Caballeros
AUSSTI
Austin Bergstrom
Tue 12/1
3:56 pm-4:08 pm
2 stops22h 12m
Santiago de los Caballeros
Tue 12/8
5:08 pm-2:13 pm
2 stops23h 05m
$449
AustinSantiago de los Caballeros
AUS Austin Bergstrom - STI Santiago de los Caballeros
AUSSTI
Austin Bergstrom
Wed 12/2
11:40 am-12:54 am
1 stop11h 14m
Santiago de los Caballeros
Wed 12/9
7:00 am-6:29 pm
2 stops13h 29m
$449
AustinSantiago de los Caballeros
AUS Austin Bergstrom - STI Santiago de los Caballeros
AUSSTI
Austin Bergstrom
Tue 12/1
6:20 am-11:51 pm
1 stop15h 31m
Santiago de los Caballeros
Tue 12/8
12:55 pm-8:52 pm
1 stop9h 57m
$472
AustinSantiago de los Caballeros
AUS Austin Bergstrom - STI Santiago de los Caballeros
AUSSTI
Austin Bergstrom
Wed 10/7
6:20 am-1:27 pm
1 stop6h 07m
Santiago de los Caballeros
Wed 10/14
3:57 pm-11:09 pm
1 stop8h 12m
$474
AustinSantiago de los Caballeros
AUS Austin Bergstrom - STI Santiago de los Caballeros
AUSSTI
Austin Bergstrom
Mon 10/5
8:24 pm-2:12 pm
2 stops16h 48m
Santiago de los Caballeros
Tue 10/13
3:12 pm-9:32 am
2 stops19h 20m
$509
AustinSantiago de los Caballeros
AUS Austin Bergstrom - STI Santiago de los Caballeros
AUSSTI
Austin Bergstrom
Mon 10/5
6:20 am-1:27 pm
1 stop6h 07m
Santiago de los Caballeros
Mon 10/12
3:57 pm-11:09 pm
1 stop8h 12m
$534
Quickest round-trip
AustinSantiago de los Caballeros
AUS Austin Bergstrom - STI Santiago de los Caballeros
AUSSTI
Austin Bergstrom
Fri 10/2
6:20 am-1:27 pm
1 stop6h 07m
Santiago de los Caballeros
Tue 10/6
3:30 pm-10:25 pm
1 stop7h 55m
$534
Showing 1-10 of 11 resultsSorted by cheapest first
Compare providers for flights from Austin 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 Austin to Santiago de los Caballeros in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Austin-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 Austin-Santiago de los Caballeros flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Austin-Santiago de los Caballeros flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Austin-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 Austin-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 Austin to Santiago de los Caballeros
Have a flexible travel schedule? Discover the best time to fly to Santiago de los Caballeros from Austin with our price prediction graph.
AUS-STI
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.
Cheapflights Insights
Everything you need to know about your flight from Austin to Santiago de los Caballeros
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 September 17, 2026.
See what other customers who have flown with American Airlines and JetBlue from Austin to Santiago de los Caballeros have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
6.8
Boarding
7.4
Food
6.4
Crew
7.9
Overall
7.1
Comfort
7.2
Reviews
1 / 20
2.0
MediocreAnonymous,Apr 2026
DFW - BDL
Entertainment
6.8
Boarding
7.4
Food
6.4
Crew
7.9
Overall
7.1
Comfort
7.2
Reviews
1 / 20
2.0
MediocreAnonymous,Apr 2026
DFW - BDL
Entertainment
6.8
Boarding
7.4
Food
6.4
Crew
7.9
Overall
7.1
Comfort
7.2
Reviews
1 / 20
2.0
MediocreAnonymous,Apr 2026
DFW - BDL
Related info for your journey
Find useful and relevant information for your journey from Austin 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.
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Alternative routes for Austin to Santiago de los Caballeros
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Complete your trip
Complete your trip to Santiago de los Caballeros by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Austin to Santiago de los Caballeros by cabin class
Find flights from Austin to Santiago de los Caballeros, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Austin and Santiago de los Caballeros flights
Browse other Austin and Santiago de los Caballeros flight options. Last updated on September 17, 2026.
Other flights from Austin
Browse through other flights departing from Austin. Flights are based on user searches made on Cheapflights and were last updated on September 17, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to Santiago de los Caballeros
Explore flights to Santiago de los Caballeros departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 17, 2026.
Top 2 airlines flying from Austin to Santiago de los Caballeros
Discover the top 2 airlines that operate flights from Austin 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 7,457,451 searches. Data last updated September 17, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$411 | Average$604 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$451 | Average$768 | FlexibilityNo cancel fee | On-time71% |