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Santiago de los Caballeros

$238+ Cheap flights from Portland (PDX) 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 6/9. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — STI
Mar 14 — Mar 211
Sat 3/14
Sat 3/21
1 adult, Economy
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Cheap flight deals from Portland to Santiago de los Caballeros

Cheapest flights from Portland to Santiago de los Caballeros
Explore the most affordable flight options available from Portland to Santiago de los Caballeros. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 12, 2026.

This American Airlines deal was found by Cheapflights users on 2/9. 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 4/1510:28 pm
PDX
-
STI
1 stop10h 55m
American Airlines
Thu 4/301:32 pm
STI
-
PDX
1 stop13h 21m
American Airlines
Deal found 2/9$489
This Delta deal was found by Cheapflights users on 2/9. 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 4/151:32 pm
PDX
-
STI
2 stops19h 38m
Delta
Thu 4/308:59 pm
STI
-
PDX
2 stops20h 51m
Delta
Deal found 2/9$568
This Delta deal was found by Cheapflights users on 2/11. 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.
Fri 5/2911:03 pm
PDX
-
STI
1 stop17h 17m
Delta
Tue 6/308:50 pm
STI
-
PDX
1 stop17h 53m
Delta
Deal found 2/11$619
This United Airlines deal was found by Cheapflights users on 2/8. 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 9/198:45 am
PDX
-
STI
2 stops25h 12m
United Airlines
Wed 9/236:00 am
STI
-
PDX
2 stops19h 38m
United Airlines
Deal found 2/8$638
This United Airlines deal was found by Cheapflights users on 2/11. 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.
Fri 5/295:15 am
PDX
-
STI
3 stops28h 42m
United Airlines
Tue 6/302:07 pm
STI
-
PDX
2 stops22h 13m
United Airlines
Deal found 2/11$775

Find flight deals from Portland to Santiago de los Caballeros

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) 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 February 12, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$489
(American Airlines)

One-way from

$238
(Delta)

Popular in

December

Cheapest in

May

Average price

$569
Provider with most accurate pricing for Portland-Santiago de los Caballeros flight deals.
Search Deals
Provider most trusted by Cheapflights users for Portland-Santiago de los Caballeros flights.
Search Deals
From Portland to Santiago de los Caballeros
Search Deals
One-way flight from Portland to Santiago de los Caballeros
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($219 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 13% potential price decrease ($95 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Portland 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 2,558,603 searches. Data last updated February 12, 2026.
Use the filters below to find and compare flights from Portland to Santiago de los Caballeros that are best for you.

Fly from

Portland

Fly to

Santiago de los Caballeros

Route

Depart

Return

Price

PortlandSantiago de los Caballeros

PDX - STI

PDXSTI

Portland

Wed 4/15

10:28 pm-12:23 pm

1 stop10h 55m

Santiago de los Caballeros

Thu 4/30

1:32 pm-11:53 pm

1 stop13h 21m

$489

PortlandSantiago de los Caballeros

PDX - STI

PDXSTI

Portland

Wed 4/15

1:32 pm-12:10 pm

2 stops19h 38m

Santiago de los Caballeros

Thu 4/30

8:59 pm-2:50 pm

2 stops20h 51m

$568

PortlandSantiago de los Caballeros

PDX - STI

PDXSTI

Portland

Fri 5/29

11:03 pm-7:20 pm

1 stop17h 17m

Santiago de los Caballeros

Tue 6/30

8:50 pm-11:43 am

1 stop17h 53m

$619

PortlandSantiago de los Caballeros

PDX - STI

PDXSTI

Portland

Thu 3/5

7:00 am-1:34 am

1 stop14h 34m

$238

PortlandSantiago de los Caballeros

PDX - STI

PDXSTI

Portland

Tue 6/9

10:05 pm-7:25 pm

1 stop18h 20m

$238

PortlandSantiago de los Caballeros

PDX - STI

PDXSTI

Portland

Tue 6/9

5:00 am-2:35 pm

2 stops30h 35m

$266

PortlandSantiago de los Caballeros

PDX - STI

PDXSTI

Portland

Thu 3/5

5:05 am-11:46 am

2 stops26h 41m

$355

PortlandSantiago de los Caballeros

PDX - STI

PDXSTI

Portland

Tue 6/9

8:35 am-12:57 pm

3 stops25h 22m

$385

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/10

Compare providers for flights from Portland 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 Portland to Santiago de los Caballeros in February.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*3 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 Portland-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 Portland-Santiago de los Caballeros flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Portland-Santiago de los Caballeros flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Portland-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 Portland-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 Portland to Santiago de los Caballeros

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

Cheapflights Insights

Everything you need to know about your flight from Portland to Santiago de los Caballeros

What is the cheapest month to book a flight from Portland to Santiago de los Caballeros?

Currently, January is the cheapest month in which you can book a flight from Portland to Santiago de los Caballeros (average of $468). Flying from Portland to Santiago de los Caballeros in December is currently the most expensive (average of $738). 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.

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 February 12, 2026.
Peruse reviews from past customers who have flown with Delta, United Airlines, and American Airlines from Portland to Santiago de los Caballeros to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,179 reviews

Entertainment

7.8

Comfort

7.9

Crew

8.5

Boarding

8.1

Food

7.2

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,179 reviews
Delta
7.9
Good
8,179 reviews

Entertainment

7.8

Comfort

7.9

Crew

8.5

Boarding

8.1

Food

7.2

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,276 reviews
Delta
7.9
Good
8,179 reviews

Entertainment

7.8

Comfort

7.9

Crew

8.5

Boarding

8.1

Food

7.2

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,267 reviews
Delta
7.9
Good
8,179 reviews

Entertainment

7.8

Comfort

7.9

Crew

8.5

Boarding

8.1

Food

7.2

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Portland 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.

  • How long is the flight from Portland to Santiago de los Caballeros?

    There are many flights that can get you from Portland to Santiago de los Caballeros in 10h 55m. Fly via American Airlines to get the fastest option. Portland and Santiago de los Caballeros are separated by a distance of 3447 mi.

  • What are the cheapest airlines flying from Portland to Santiago de los Caballeros round-trip?

    United Airlines, at $467, was found to be the cheapest airline from Portland to Santiago de los Caballeros.Alternate airlines to your destination round-trip include Delta and American Airlines. These flights start at 42% lower than the current average price 3 months from now.

  • Can I find deals for flights from Portland to Santiago de los Caballeros that include hotel bookings?

    Yes. In addition to deals on Portland to Santiago de los Caballeros flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Portland 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 Portland to Santiago de los Caballeros.

  • Can I find deals for business class flights from Portland to Santiago de los Caballeros?

    Yes. Cheapflights offers flight deals from Portland 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 Portland to Santiago de los Caballeros?

    Currently, January is the cheapest month in which you can book a flight from Portland to Santiago de los Caballeros (average of $468). Flying from Portland to Santiago de los Caballeros in December is currently the most expensive (average of $738). 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

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Alternative routes for Portland to Santiago de los Caballeros

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Portland to Santiago de los Caballeros

Discover the top 3 airlines that operate flights from Portland 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 2,558,603 searches. Data last updated February 12, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$467Average$626FlexibilityNo cancel feeOn-time69%
DeltaCheapest$467Average$574FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$492Average$698FlexibilityNo cancel feeOn-time71%

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