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Santiago de los Caballeros

$273+ 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
Dec 12 — Dec 191
Fri 12/12
Fri 12/19
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 November 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$468
(Delta)

One-way from

$273
(Delta)

Popular in

December

Cheapest in

May

Average price

$609
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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Highest demand for flights based on searches. 13% potential increase in price ($139 potential increase over avg. RT price).
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Cheapest flight prices on average. 10% potential price decrease ($86 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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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 November 12, 2025.

This Delta deal was found by Cheapflights users on 11/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/247:05 amPDX - STI
1 stop13h 54mDelta
Mon 12/86:35 amSTI - PDX
1 stop18h 05mDelta
Deal found 11/12$519
This Delta deal was found by Cheapflights users on 11/11. 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.
Sat 11/225:26 pmPDX - STI
2 stops15h 40mDelta
Mon 12/88:57 pmSTI - PDX
2 stops22h 36mDelta
Deal found 11/11$523
This American Airlines deal was found by Cheapflights users on 11/12. 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 11/2510:45 pmPDX - STI
1 stop20h 11mAmerican Airlines
Tue 12/94:32 pmSTI - PDX
1 stop11h 20mAmerican Airlines
Deal found 11/12$535
This Delta deal was found by Cheapflights users on 11/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2112:35 amPDX - STI
2 stops20h 24mDelta
Sat 12/66:35 amSTI - PDX
1 stop18h 05mDelta
Deal found 11/12$569
This United Airlines deal was found by Cheapflights users on 11/10. 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 11/248:30 amPDX - STI
2 stops23h 16mUnited Airlines
Mon 12/84:00 pmSTI - PDX
3 stops23h 03mUnited Airlines
Deal found 11/10$633
This United Airlines deal was found by Cheapflights users on 11/11. 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.
Sat 11/227:10 pmPDX - STI
2 stops12h 36mUnited Airlines
Sat 12/64:00 pmSTI - PDX
3 stops23h 03mUnited Airlines
Deal found 11/11$677
This American Airlines deal was found by Cheapflights users on 11/12. 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.
Sat 11/2210:45 pmPDX - STI
1 stop12h 47mAmerican Airlines
Sat 12/64:32 pmSTI - PDX
1 stop11h 20mAmerican Airlines
Deal found 11/12$692
This United Airlines deal was found by Cheapflights users on 11/11. 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.
Sat 11/224:02 pmPDX - STI
2 stops15h 44mUnited Airlines
Mon 12/86:00 amSTI - PDX
3 stops34h 12mUnited Airlines
Deal found 11/11$703
This American Airlines deal was found by Cheapflights users on 11/10. 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
Mon 12/86:00 amSTI - PDX
1 stop21h 52mAmerican Airlines
Deal found 11/10$705

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 November 12, 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

Mon 3/9

7:00 am-11:27 pm

1 stop13h 27m

Santiago de los Caballeros

Wed 3/11

6:00 am-9:35 pm

1 stop18h 35m

$468

PortlandSantiago de los Caballeros

PDX - STI

PDXSTI

Portland

Sat 1/10

11:01 pm-9:46 pm

1 stop18h 45m

Santiago de los Caballeros

Sat 1/17

6:00 am-10:11 pm

2 stops20h 11m

$472

PortlandSantiago de los Caballeros

PDX - STI

PDXSTI

Portland

Mon 11/24

7:05 am-12:59 am

1 stop13h 54m

Santiago de los Caballeros

Mon 12/8

6:35 am-8:40 pm

1 stop18h 05m

$519

PortlandSantiago de los Caballeros

PDX - STI

PDXSTI

Portland

Mon 11/24

7:22 pm-1:06 pm

2 stops13h 44m

$273

PortlandSantiago de los Caballeros

PDX - STI

PDXSTI

Portland

Mon 11/24

10:45 pm-3:32 pm

1 stop12h 47m

$273

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/10

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 November.
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, January is the cheapest month in which you can book a flight from Portland to Santiago de los Caballeros (average of $475). Flying from Portland to Santiago de los Caballeros in December is currently the most expensive (average of $739). 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 November 12, 2025.

It’s typically best to fly out from Portland to Santiago de los Caballeros in the afternoon. Doing so could potentially save you 57% on the flight price compared to flying at noon, 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 November 12, 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
7.9
Good
8,009 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Boarding

8.1

Overall

7.9

Crew

8.5

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
8,009 reviews
Delta
7.9
Good
8,009 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Boarding

8.1

Overall

7.9

Crew

8.5

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
9,015 reviews
Delta
7.9
Good
8,009 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Boarding

8.1

Overall

7.9

Crew

8.5

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
11,050 reviews
Delta
7.9
Good
8,009 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Boarding

8.1

Overall

7.9

Crew

8.5

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 13h 27m. Fly via Delta or American Airlines 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 $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 47% 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 $475). Flying from Portland to Santiago de los Caballeros in December is currently the most expensive (average of $739). 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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Portland to Santo Domingo flights
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Portland to Puerto Plata flights
Eugene to Punta Cana flights
Redmond to Santo Domingo flights
Boise to Santo Domingo flights

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 November 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$467Average$635FlexibilityNo cancel feeOn-time69%
DeltaCheapest$467Average$571FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$517Average$707FlexibilityNo cancel feeOn-time71%

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