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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 11/24. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — STI
Oct 29 — Nov 51
Wed 10/29
Wed 11/5
1 adult, Economy
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Cheap 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 September 29, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$467
(American Airlines)

One-way from

$222
(Delta)

Popular in

February

Cheapest in

May
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
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($126 potential increase over avg. RT price).
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Cheapest flight prices on average. 7% potential price decrease ($57 potential savings vs. average RT price).
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Find 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 September 29, 2025.

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.
Tue 11/2510:45 pmPDX - STI
1 stop12h 47mAmerican Airlines
Tue 12/94:32 pmSTI - PDX
1 stop11h 20mAmerican Airlines
Deal found 9/29$467
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/245:30 amPDX - STI
2 stops15h 29mDelta
Tue 12/96:35 amSTI - PDX
2 stops19h 35mDelta
Deal found 9/28$472
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 11/2410:45 pmPDX - STI
1 stop12h 47mAmerican Airlines
Mon 12/84:32 pmSTI - PDX
1 stop11h 20mAmerican Airlines
Deal found 9/29$492
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/2412:35 amPDX - STI
2 stops15h 01mDelta
Tue 12/96:35 amSTI - PDX
2 stops20h 21mDelta
Deal found 9/29$518
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.
Sat 11/2210:45 pmPDX - STI
1 stop12h 47mAmerican Airlines
Sat 12/64:32 pmSTI - PDX
1 stop11h 20mAmerican Airlines
Deal found 9/29$542
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/245:30 amPDX - STI
2 stops15h 29mDelta
Mon 12/86:35 amSTI - PDX
2 stops18h 17mDelta
Deal found 9/29$567
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 11/245:00 amPDX - STI
2 stops26h 46mUnited Airlines
Mon 12/812:52 pmSTI - PDX
3 stops26h 11mUnited Airlines
Deal found 9/29$601

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 September 29, 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

Tue 11/25

10:45 pm-3:32 pm

1 stop12h 47m

Santiago de los Caballeros

Tue 12/9

4:32 pm-11:52 pm

1 stop11h 20m

$467

PortlandSantiago de los Caballeros

PDX - STI

PDXSTI

Portland

Mon 11/24

5:30 am-12:59 am

2 stops15h 29m

Santiago de los Caballeros

Tue 12/9

6:35 am-10:10 pm

2 stops19h 35m

$472

PortlandSantiago de los Caballeros

PDX - STI

PDXSTI

Portland

Mon 11/24

10:45 pm-3:32 pm

1 stop12h 47m

Santiago de los Caballeros

Tue 12/9

4:32 pm-11:52 pm

1 stop11h 20m

$492

PortlandSantiago de los Caballeros

PDX - STI

PDXSTI

Portland

Mon 11/24

10:45 pm-3:32 pm

1 stop12h 47m

Santiago de los Caballeros

Mon 12/8

4:32 pm-11:52 pm

1 stop11h 20m

$492

PortlandSantiago de los Caballeros

PDX - STI

PDXSTI

Portland

Mon 11/24

5:30 am-12:59 am

2 stops15h 29m

$222

PortlandSantiago de los Caballeros

PDX - STI

PDXSTI

Portland

Mon 11/24

10:45 pm-3:32 pm

1 stop12h 47m

$247

PortlandSantiago de los Caballeros

PDX - STI

PDXSTI

Portland

Thu 10/2

7:30 am-1:46 am

2 stops15h 16m

$272

PortlandSantiago de los Caballeros

PDX - STI

PDXSTI

Portland

Thu 10/2

7:15 am-12:34 am

1 stop14h 19m

$272

PortlandSantiago de los Caballeros

PDX - STI

PDXSTI

Portland

Mon 11/24

6:00 am-11:46 am

3 stops25h 46m

$432

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/28

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 September.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 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, May is the cheapest month in which you can book a flight from Portland to Santiago de los Caballeros (average of $347). Flying from Portland to Santiago de los Caballeros in July is currently the most expensive (average of $600). 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.

What is the cheapest time of day to fly from PDX to STI?

Find hourly flight availability from Portland to Santiago de los Caballeros. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 29, 2025.

It’s typically best to fly out from Portland to Santiago de los Caballeros at noon. Doing so could potentially save you 33% on the flight price compared to flying in the morning, which is usually more expensive.

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, 2025.
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
8.0
Very good
7,964 reviews

Boarding

8.2

Overall

8.0

Crew

8.5

Entertainment

7.9

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,964 reviews
Delta
8.0
Very good
7,964 reviews

Boarding

8.2

Overall

8.0

Crew

8.5

Entertainment

7.9

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,924 reviews
Delta
8.0
Very good
7,964 reviews

Boarding

8.2

Overall

8.0

Crew

8.5

Entertainment

7.9

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,964 reviews

Boarding

8.2

Overall

8.0

Crew

8.5

Entertainment

7.9

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 12h 47m. Fly via American Airlines or Delta to get the fastest option. Portland and Santiago de los Caballeros are separated by a distance of 3447 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    United Airlines, at $514, was found to be the cheapest airline from Portland to Santiago de los Caballeros.Alternate airlines to your destination round-trip include American Airlines and Delta. These flights start at 34% 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, May is the cheapest month in which you can book a flight from Portland to Santiago de los Caballeros (average of $347). Flying from Portland to Santiago de los Caballeros in July is currently the most expensive (average of $600). 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 September 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$514Average$635FlexibilityNo cancel feeOn-time69%
DeltaCheapest$536Average$664FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$541Average$764FlexibilityNo cancel feeOn-time71%

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