$270+ 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 1/5. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — STI
Oct 29 — Nov 51
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
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Last-minute
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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 29, 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 29, 2026.
This United Airlines deal was found by Cheapflights users on 9/25. 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.
Wed 11/1110:24 am -
1 stop11h 27m
Mon 11/1612:55 pm -
1 stop12h 38m
Deal found 9/25![United Airlines logo]()
$444
This American Airlines deal was found by Cheapflights users on 9/29. 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 11/95:46 pm -
2 stops20h 22m
Mon 11/165:08 pm -
2 stops19h 40m
Deal found 9/29![American Airlines logo]()
$449
This American Airlines deal was found by Cheapflights users on 9/25. 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.
Fri 11/131:00 pm -
1 stop22h 26m
Sun 11/152:16 pm -
1 stop23h 37m
Deal found 9/25![American Airlines logo]()
$470
This American Airlines deal was found by Cheapflights users on 9/25. 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 10/145:44 pm -
2 stops19h 28m
Sun 10/183:12 pm -
2 stops19h 20m
Deal found 9/25![American Airlines logo]()
$507
This United Airlines deal was found by Cheapflights users on 9/26. 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 10/175:29 pm -
2 stops28h 23m
Wed 10/216:00 am -
2 stops16h 22m
Deal found 9/26![United Airlines logo]()
$579
This American Airlines deal was found by Cheapflights users on 9/28. 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 10/74:32 pm -
1 stop20h 40m
Wed 10/143:12 pm -
1 stop8h 38m
Deal found 9/28![American Airlines logo]()
$601
This United Airlines deal was found by Cheapflights users on 9/29. 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.
Mon 11/95:40 pm -
3 stops19h 13m
Mon 11/1612:55 pm -
2 stops21h 36m
Deal found 9/29![United Airlines logo]()
$627
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 29, 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 29, 2026.
This United Airlines deal was found by Cheapflights users on 9/25. 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.
Wed 11/1110:24 am -
1 stop11h 27m
Mon 11/1612:55 pm -
1 stop12h 38m
Deal found 9/25![United Airlines logo]()
$444
This Delta deal was found by Cheapflights users on 9/25. 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 11/115:20 am -
2 stops17h 39m
Mon 11/167:00 am -
2 stops17h 10m
Deal found 9/25![Delta logo]()
$449
This American Airlines deal was found by Cheapflights users on 9/29. 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 11/95:13 pm -
2 stops20h 55m
Mon 11/165:08 pm -
1 stop7h 51m
Deal found 9/29![American Airlines logo]()
$449
This JetBlue deal was found by Cheapflights users on 9/26. 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 10/147:30 pm -
1 stop10h 35m
Sun 10/188:15 am -
1 stop11h 22m
Deal found 9/26![JetBlue logo]()
$661
This United Airlines deal was found by Cheapflights users on 9/26. 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 10/178:45 am -
1 stop13h 07m
Wed 10/216:00 am -
2 stops17h 54m
Deal found 9/26![United Airlines logo]()
$579
This American Airlines deal was found by Cheapflights users on 9/28. 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 10/145:44 pm -
2 stops19h 28m
Sun 10/183:12 pm -
2 stops20h 44m
Deal found 9/28![American Airlines logo]()
$633
This American Airlines deal was found by Cheapflights users on 9/28. 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 12/77:50 pm -
2 stops18h 11m
Tue 1/127:20 am -
2 stops17h 48m
Deal found 9/28![American Airlines logo]()
$683
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 29, 2026 and is based on user searches.
Discover last-minute flight deals from Austin to Santiago de los Caballeros. Data last updated September 29, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 9/28. 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 10/74:32 pm -
1 stop20h 40m
Wed 10/143:12 pm -
1 stop8h 38m
Deal found 9/28![American Airlines logo]()
$601
This American Airlines deal was found by Cheapflights users on 9/25. 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 10/145:44 pm -
2 stops19h 28m
Sun 10/183:12 pm -
2 stops19h 20m
Deal found 9/25![American Airlines logo]()
$507
This JetBlue deal was found by Cheapflights users on 9/26. 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 10/147:30 pm -
1 stop10h 35m
Sun 10/188:15 am -
1 stop11h 22m
Deal found 9/26![JetBlue logo]()
$661
This United Airlines deal was found by Cheapflights users on 9/26. 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 10/175:29 pm -
2 stops28h 23m
Wed 10/216:00 am -
2 stops16h 22m
Deal found 9/26![United Airlines logo]()
$579
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 29, 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 29, 2026.
This Delta deal was found by Cheapflights users on 9/26. 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 1/55:40 am -
2 stops16h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/26![Delta logo]()
$270
This United Airlines deal was found by Cheapflights users on 9/29. 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 10/68:45 am -
2 stops13h 07m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/29![United Airlines logo]()
$294
This American Airlines deal was found by Cheapflights users on 9/28. 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.
Sat 10/105:44 pm -
2 stops19h 28m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![American Airlines logo]()
$378
This Kiwi.com deal was found by Cheapflights users on 9/28. 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.
Sat 10/1012:08 pm -
3 stops49h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![Multiple Airlines logo]()
$621
This United Airlines deal was found by Cheapflights users on 9/26. 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 1/57:07 am -
3 stops14h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/26![United Airlines logo]()
$1,559
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 29, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $444 (United Airlines) |
One-way from | $270 (Delta) |
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 29, 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
Tue 1/5
11:20 am-11:50 pm
1 stop10h 30m
Santiago de los Caballeros
Wed 12/31
12:00 am-10:30 pm
Nonstop0h 00m
$270
AustinSantiago de los Caballeros
AUS Austin Bergstrom - STI Santiago de los Caballeros
AUSSTI
Austin Bergstrom
Tue 10/6
8:45 am-10:52 pm
2 stops13h 07m
Santiago de los Caballeros
Wed 12/31
12:00 am-10:30 pm
Nonstop0h 00m
$294
Quickest round-trip
AustinSantiago de los Caballeros
AUS Austin Bergstrom - STI Santiago de los Caballeros
AUSSTI
Austin Bergstrom
Tue 10/6
7:30 am-5:33 pm
1 stop9h 03m
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
Sat 10/10
5:44 pm-2:12 pm
2 stops19h 28m
Santiago de los Caballeros
Wed 12/31
12:00 am-10:30 pm
Nonstop0h 00m
$378
AustinSantiago de los Caballeros
AUS Austin Bergstrom - STI Santiago de los Caballeros
AUSSTI
Austin Bergstrom
Wed 11/11
10:24 am-11:51 pm
1 stop11h 27m
Santiago de los Caballeros
Mon 11/16
12:55 pm-11:33 pm
1 stop12h 38m
$444
AustinSantiago de los Caballeros
AUS Austin Bergstrom - STI Santiago de los Caballeros
AUSSTI
Austin Bergstrom
Wed 11/11
5:20 am-12:59 am
2 stops17h 39m
Santiago de los Caballeros
Mon 11/16
7:00 am-10:10 pm
2 stops17h 10m
$449
AustinSantiago de los Caballeros
AUS Austin Bergstrom - STI Santiago de los Caballeros
AUSSTI
Austin Bergstrom
Mon 11/9
5:13 pm-4:08 pm
2 stops20h 55m
Santiago de los Caballeros
Mon 11/16
5:08 pm-10:59 pm
1 stop7h 51m
$449
AustinSantiago de los Caballeros
AUS Austin Bergstrom - STI Santiago de los Caballeros
AUSSTI
Austin Bergstrom
Sat 10/17
8:45 am-10:52 pm
1 stop13h 07m
Santiago de los Caballeros
Wed 10/21
6:00 am-10:54 pm
2 stops17h 54m
$579
AustinSantiago de los Caballeros
AUS Austin Bergstrom - STI Santiago de los Caballeros
AUSSTI
Austin Bergstrom
Wed 10/14
5:44 pm-2:12 pm
2 stops19h 28m
Santiago de los Caballeros
Sun 10/18
3:12 pm-10:56 am
2 stops20h 44m
$633
AustinSantiago de los Caballeros
AUS Austin Bergstrom - STI Santiago de los Caballeros
AUSSTI
Austin Bergstrom
Wed 10/14
7:30 pm-7:05 am
1 stop10h 35m
Santiago de los Caballeros
Sun 10/18
8:15 am-6:37 pm
1 stop11h 22m
$661
Showing 1-10 of 12 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
What is the cheapest month to book a flight from Austin to Santiago de los Caballeros?
Currently, February is the cheapest month in which you can book a flight from Austin to Santiago de los Caballeros (average of $253). Flying from Austin to Santiago de los Caballeros in December is currently the most expensive (average of $835). 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.
How much does it cost to fly round-trip from Austin to Santiago de los Caballeros?
Airfare is below average for this route at the moment.
Austin to Santiago de los Caballeros flights typically cost between $451 and $534 in November.The cheapest round-trip price found within the last 5 days was $444 on United Airlines (Nov 11-Nov 16).
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 29, 2026.
See what other customers who have flown with JetBlue and American Airlines 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.
Comfort
7.4
Food
6.6
Boarding
7.3
Overall
7.1
Crew
7.9
Entertainment
7.2
Reviews
1 / 20
6.0
GoodAnonymous,Jul 2026
ISP - FLL
Comfort
7.4
Food
6.6
Boarding
7.3
Overall
7.1
Crew
7.9
Entertainment
7.2
Reviews
1 / 20
6.0
GoodAnonymous,Jul 2026
ISP - FLL
Comfort
7.4
Food
6.6
Boarding
7.3
Overall
7.1
Crew
7.9
Entertainment
7.2
Reviews
1 / 20
6.0
GoodAnonymous,Jul 2026
ISP - FLL
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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Complete your trip
Complete your trip to Santiago de los Caballeros by adding a car rental and/or hotel reservation to your travel itinerary.
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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 29, 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 29, 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 29, 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 29, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$444 | Average$584 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$451 | Average$768 | FlexibilityNo cancel fee | On-time71% |