What is the cheapest day to fly from Portland to Santiago de los Caballeros?

Travelers seeking maximum savings on their Portland to Santiago de los Caballeros flight should consider departing on Wednesday evenings when fares are most often at their lowest. Monday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Santiago de los Caballeros ranges from 3.0 - 11.6 inches per month. December is typically the wettest month, when rainfall can reach 11.6 in. July is typically the driest time to visit Santiago de los Caballeros when rainfall is around 3.0 in.

If weather is an important factor for your trip to Santiago de los Caballeros, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 73.4 F).

What are the most popular airlines that fly from Portland to Santiago de los Caballeros?

The most popular airlines flying from Portland to Santiago de los Caballeros are American Airlines, Delta and United Airlines. Something to consider prior to booking your flight.

What is the cheapest day to fly round-trip from Portland to Santiago de los Caballeros?

Friday is generally a great day to depart. Flying on this day could help you save up to 85%.

What is the cheapest month to fly from Portland to Santiago de los Caballeros?

The best pricing can be found in the month of January. Prices to Santiago de los Caballeros from Portland average $768. You can even find prices in January for less than $768, as users have found deals to Santiago de los Caballeros from as low as $498. The month of February appears to be one of the more expensive times to travel to Santiago de los Caballeros from Portland. Flying in the targeted month can save you up to 67%.

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.

$306+ Flights from Portland to Santiago de los Caballeros

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Cheap flight deals from Portland to Santiago de los Caballeros

Round-trip from	$523 (Delta)
One-way from	$306 (United Airlines)
Popular in	February
Cheapest in	January
Average price	$603

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. 10% potential increase in price ($92 potential increase over avg. RT price).

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Cheapest flight prices on average. 8% potential price decrease ($58 potential savings vs. average RT price).

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Average for round-trip flights in August 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 agosto 14, 2025.

mar. 9/231:25 pmPDX - STI

1 stop20h 15mDelta

jue. 10/28:40 pmSTI - PDX

1 stop18h 24mDelta

Deal found 8/14

$523

mar. 11/257:00 amPDX - STI

1 stop14h 26mDelta

mar. 12/96:45 amSTI - PDX

1 stop18h 54mDelta

Deal found 8/14

$525

dom. 11/2312:40 amPDX - STI

2 stops15h 54mDelta

lun. 12/86:45 amSTI - PDX

2 stops21h 06mDelta

Deal found 8/12

$530

mar. 11/257:00 amPDX - STI

1 stop14h 26mDelta

mar. 12/26:45 amSTI - PDX

1 stop18h 54mDelta

Deal found 8/14

$547

lun. 11/2410:45 pmPDX - STI

1 stop12h 45mAmerican Airlines

lun. 12/84:30 pmSTI - PDX

1 stop10h 46mAmerican Airlines

Deal found 8/13

$575

dom. 11/237:10 amPDX - STI

2 stops14h 16mDelta

dom. 12/76:45 amSTI - PDX

2 stops19h 09mDelta

Deal found 8/14

$598

dom. 11/2310:45 pmPDX - STI

1 stop12h 45mAmerican Airlines

dom. 12/74:30 pmSTI - PDX

1 stop10h 46mAmerican Airlines

Deal found 8/12

$630

sáb. 11/2211:16 pmPDX - STI

1 stop11h 37mUnited Airlines

sáb. 12/612:52 pmSTI - PDX

1 stop12h 53mUnited Airlines

Deal found 8/14

$635

Best flights from Portland to Santiago de los Caballeros
Discover carefully curated flight deals from Portland 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 agosto 14, 2025.

mar. 9/231:25 pmPDX - STI

1 stop20h 15mDelta

jue. 10/28:40 pmSTI - PDX

1 stop18h 24mDelta

Deal found 8/14

$523

mié. 9/248:35 amPDX - STI

2 stops14h 11mUnited Airlines

jue. 9/256:00 amSTI - PDX

3 stops19h 45mUnited Airlines

Deal found 8/13

$1,245

Last-minute flights from Portland to Santiago de los Caballeros
Discover last-minute flight deals from Portland to Santiago de los Caballeros. Data last updated agosto 14, 2025 and is based on user searches.

mar. 9/231:25 pmPDX - STI

1 stop20h 15mDelta

jue. 10/28:40 pmSTI - PDX

1 stop18h 24mDelta

Deal found 8/14

$523

mié. 9/247:04 amPDX - STI

2 stops15h 42mUnited Airlines

jue. 9/256:00 amSTI - PDX

2 stops16h 13mUnited Airlines

Deal found 8/13

$1,245

One-way flights from Portland to Santiago de los Caballeros
Search for one-way flight options from Portland to Santiago de los Caballeros. Find affordable one-way fares based on user searches. Data last updated agosto 14, 2025.

sáb. 11/223:54 pmPDX - STI

2 stops15h 52mUnited Airlines

Deal found 8/12

$306

vie. 11/2112:40 amPDX - STI

2 stops15h 54mDelta

Deal found 8/12

$524

Cheapflights Fare Finder

Use the filters below to find and compare flights from Portland to Santiago de los Caballeros that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortlandSantiago de los Caballeros

PDX - STI

PDXSTI

Portland

mar. 9/23

1:25 pm-12:40 pm

1 stop20h 15m

Santiago de los Caballeros

jue. 10/2

8:40 pm-12:04 pm

1 stop18h 24m

$523

PortlandSantiago de los Caballeros

PDX - STI

PDXSTI

Portland

mié. 9/24

8:35 am-1:46 am

2 stops14h 11m

Santiago de los Caballeros

jue. 9/25

6:00 am-10:45 pm

3 stops19h 45m

$1,245

PortlandSantiago de los Caballeros

PDX - STI

PDXSTI

Portland

sáb. 11/22

3:54 pm-11:46 am

2 stops15h 52m

$306

PortlandSantiago de los Caballeros

PDX - STI

PDXSTI

Portland

vie. 11/21

12:40 am-8:34 pm

2 stops15h 54m

$524

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/12

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 $601). 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?

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

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

7,980 reviews

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

7,980 reviews

Delta

8.0

Very good

7,980 reviews

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

8,916 reviews

Delta

8.0

Very good

7,980 reviews

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

7,980 reviews

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

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 Delta and American Airlines. These flights start at 33% 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 $601). 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

Top 3 airlines flying from Portland to Santiago de los Caballeros

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$514	Average$657	FlexibilityNo cancel fee	On-time69%
Delta	Cheapest$536	Average$748	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$569	Average$884	FlexibilityNo cancel fee	On-time71%

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$306+ 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 11/22. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Portland to Santiago de los Caballeros with Cheapflights

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2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Portland to Santiago de los Caballeros

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Portland to Santiago de los Caballeros

Cheapest flights from Portland to Santiago de los CaballerosExplore 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 agosto 14, 2025.

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 agosto 14, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Portland to Santiago de los Caballeros that are best for you.

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.

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?

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 agosto 14, 2025.

Reviews of airlines servicing Santiago de los Caballeros

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.

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

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

How can I 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?

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Portland to Santiago de los Caballeros

See prices for flight routes from nearby airports that may be better suited for you.

Top 3 airlines flying from Portland to Santiago de los Caballeros

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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 agosto 14, 2025.