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Santiago de los Caballeros

$222+ 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 1/25. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — STI
janv. 27 — févr. 31
mar. 1/27
mar. 2/3
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 décembre 28, 2025.

This Delta deal was found by Cheapflights users on 12/25. 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.
lun. 12/295:30 amPDX - STI
2 stops17h 21mDelta
dim. 1/42:55 amSTI - PDX
1 stop21h 30mDelta
Deal found 12/25$981
This American Airlines deal was found by Cheapflights users on 12/26. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/2910:49 pmPDX - STI
1 stop11h 35mAmerican Airlines
lun. 1/53:24 pmSTI - PDX
1 stop13h 35mAmerican Airlines
Deal found 12/26$1,064

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 décembre 28, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$468
(Delta)

One-way from

$222
(American Airlines)
Provider with most accurate pricing for Portland-Santiago de los Caballeros flight deals.
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Provider most trusted by Cheapflights users for Portland-Santiago de los Caballeros flights.
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From Portland to Santiago de los Caballeros
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One-way flight from Portland to Santiago de los Caballeros
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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 décembre 28, 2025.
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

jeu. 1/22

7:00 am-12:50 am

1 stop13h 50m

Santiago de los Caballeros

mar. 2/3

6:38 am-8:25 pm

1 stop17h 47m

$468

PortlandSantiago de los Caballeros

PDX - STI

PDXSTI

Portland

ven. 1/23

12:40 am-12:50 am

2 stops20h 10m

Santiago de los Caballeros

mar. 2/3

6:38 am-12:17 am

2 stops21h 39m

$472

PortlandSantiago de los Caballeros

PDX - STI

PDXSTI

Portland

sam. 1/10

6:22 pm-3:32 pm

2 stops17h 10m

Santiago de los Caballeros

sam. 1/17

6:00 am-8:27 pm

2 stops18h 27m

$523

PortlandSantiago de los Caballeros

PDX - STI

PDXSTI

Portland

sam. 1/10

5:00 pm-1:04 pm

2 stops16h 04m

Santiago de los Caballeros

sam. 1/17

9:59 pm-12:32 pm

2 stops18h 33m

$523

PortlandSantiago de los Caballeros

PDX - STI

PDXSTI

Portland

lun. 1/26

11:05 pm-2:53 pm

1 stop11h 48m

Santiago de los Caballeros

jeu. 1/29

12:52 pm-9:49 pm

1 stop12h 57m

$578

PortlandSantiago de los Caballeros

PDX - STI

PDXSTI

Portland

sam. 1/24

1:24 pm-2:53 pm

3 stops21h 29m

Santiago de los Caballeros

mar. 2/3

6:00 am-9:12 pm

2 stops19h 12m

$582

PortlandSantiago de los Caballeros

PDX - STI

PDXSTI

Portland

dim. 1/25

10:15 pm-9:46 pm

2 stops19h 31m

$222

PortlandSantiago de los Caballeros

PDX - STI

PDXSTI

Portland

dim. 1/25

10:30 am-3:33 pm

3 stops25h 03m

$307

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/26

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 December.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Portland-Santiago de los Caballeros flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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, July is the cheapest month in which you can book a flight from Portland to Santiago de los Caballeros (average of $516). 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 décembre 28, 2025.
Peruse reviews from past customers who have flown with 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.
United Airlines
7.4
Good
9,113 reviews

Food

6.6

Entertainment

7.1

Crew

8.1

Overall

7.4

Comfort

7.3

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
United Airlines
7.4
Good
9,113 reviews
United Airlines
7.4
Good
9,113 reviews

Food

6.6

Entertainment

7.1

Crew

8.1

Overall

7.4

Comfort

7.3

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
American Airlines
7.2
Good
11,073 reviews
United Airlines
7.4
Good
9,113 reviews

Food

6.6

Entertainment

7.1

Crew

8.1

Overall

7.4

Comfort

7.3

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.

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 13h 50m. Fly via Delta 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. An alternate airline flying to your destination would be American Airlines.

  • 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, July is the cheapest month in which you can book a flight from Portland to Santiago de los Caballeros (average of $516). 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

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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 2 airlines flying from Portland to Santiago de los Caballeros

Discover the top 2 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 décembre 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$467Average$635FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$492Average$717FlexibilityNo cancel feeOn-time71%

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