Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from Portland, Maine to Santiago de los Caballeros from $406

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Portland, Maine to Santiago de los Caballeros departing on 2/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Portland, Maine to Santiago de los Caballeros

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
5:20 am - 9:46 pm
PWM
-
STI
15h 26m2 stops
American Airlines Logo
2:33 pm - 11:22 am
STI
-
PWM
21h 49m2 stops
$406American Airlines
Fri, Feb 6 - Fri, Feb 13
Delta Logo
6:17 am - 8:34 pm
PWM
-
STI
13h 17m1 stop
Delta Logo
6:39 am - 1:43 pm
STI
-
PWM
8h 04m1 stop
$412Delta
Fri, Feb 6 - Fri, Feb 13
United Airlines Logo
4:10 pm - 2:53 pm
PWM
-
STI
21h 43m2 stops
United Airlines Logo
4:00 pm - 2:31 pm
STI
-
PWM
23h 31m2 stops
$522United Airlines
Sat, Jan 31 - Wed, Feb 4
United Airlines Logo
6:00 am - 2:53 pm
PWM
-
STI
7h 53m1 stop
United Airlines Logo
6:00 am - 9:09 pm
STI
-
PWM
16h 09m2 stops
$592United Airlines
Fri, Feb 6 - Fri, Feb 13
United Airlines Logo
6:00 am - 2:53 pm
PWM
-
STI
7h 53m1 stop
United Airlines Logo
4:00 pm - 11:30 pm
STI
-
PWM
8h 30m1 stop
$636United Airlines
Sat, Jan 31 - Wed, Feb 4
United Airlines Logo
5:45 am - 10:51 pm
PWM
-
STI
17h 06m2 stops
United Airlines Logo
3:00 pm - 10:52 pm
STI
-
PWM
7h 52m1 stop
$715United Airlines
Wed, Mar 18 - Sat, Mar 28
American Airlines Logo
5:39 am - 8:29 pm
PWM
-
STI
14h 50m3 stops
American Airlines Logo
1:15 pm - 10:23 am
STI
-
PWM
21h 08m2 stops
$2,132American Airlines
Wed, Mar 18 - Sat, Mar 28
American Airlines Logo
5:20 am - 9:46 pm
PWM
-
STI
15h 26m3 stops
American Airlines Logo
8:00 am - 10:51 pm
STI
-
PWM
15h 51m2 stops
$2,235American Airlines
Fri, Feb 6 - Fri, Feb 13

United Airlines flights from Portland, Maine to Santiago de los Caballeros

Our best United Airlines deals on Portland, Maine to Santiago de los Caballeros flight tickets
United Airlines
Jan 31
PWM6:00 amPortland
7h 53m
1 stop
STI2:53 pmSantiago de los Caballeros
Feb 4
STI4:00 pmSantiago de los Caballeros
23h 31m
2 stops
PWM2:31 pmPortland
$522
Find similar
United Airlines
Jan 31
PWM6:00 amPortland
7h 53m
1 stop
STI2:53 pmSantiago de los Caballeros
Feb 4
STI4:00 pmSantiago de los Caballeros
8h 30m
1 stop
PWM11:30 pmPortland
$636
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Portland, Maine 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, momondo users made 832,500 searches. Data last updated December 25, 2025.
Use the filters below to find and compare flights from Portland, Maine to Santiago de los Caballeros that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortlandSantiago de los Caballeros

PWM - STI

PWMSTI

Portland

Fri 2/6

5:20 am-9:46 pm

2 stops15h 26m

Santiago de los Caballeros

Fri 2/13

2:33 pm-11:22 am

2 stops21h 49m

$406

PortlandSantiago de los Caballeros

PWM - STI

PWMSTI

Portland

Fri 2/6

6:17 am-8:34 pm

1 stop13h 17m

Santiago de los Caballeros

Fri 2/13

6:39 am-1:43 pm

1 stop8h 04m

$412

PortlandSantiago de los Caballeros

PWM - STI

PWMSTI

Portland

Sat 1/31

4:10 pm-2:53 pm

2 stops21h 43m

Santiago de los Caballeros

Wed 2/4

4:00 pm-2:31 pm

2 stops23h 31m

$522

PortlandSantiago de los Caballeros

PWM - STI

PWMSTI

Portland

Fri 2/6

6:00 am-2:53 pm

1 stop7h 53m

Santiago de los Caballeros

Fri 2/13

6:00 am-9:09 pm

2 stops16h 09m

$592

PortlandSantiago de los Caballeros

PWM - STI

PWMSTI

Portland

Sat 1/31

6:00 am-2:53 pm

1 stop7h 53m

Santiago de los Caballeros

Wed 2/4

4:00 pm-11:30 pm

1 stop8h 30m

$636

PortlandSantiago de los Caballeros

PWM - STI

PWMSTI

Portland

Wed 3/18

5:45 am-10:51 pm

2 stops17h 06m

Santiago de los Caballeros

Sat 3/28

3:00 pm-10:52 pm

1 stop7h 52m

$715

PortlandSantiago de los Caballeros

PWM - STI

PWMSTI

Portland

Wed 3/18

5:39 am-8:29 pm

3 stops14h 50m

Santiago de los Caballeros

Sat 3/28

1:15 pm-10:23 am

2 stops21h 08m

$2,132

PortlandSantiago de los Caballeros

PWM - STI

PWMSTI

Portland

Fri 2/6

5:20 am-9:46 pm

3 stops15h 26m

Santiago de los Caballeros

Fri 2/13

8:00 am-10:51 pm

2 stops15h 51m

$2,235

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Santiago de los Caballeros from

How to get the cheapest flight ticket from Portland, Maine to Santiago de los Caballeros

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Santiago de los Caballeros?

The cheapest day to depart from Portland, Maine to Santiago de los Caballeros is on a Thursday when prices can be found for as low as $475. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from Portland, Maine to Santiago de los Caballeros for around $645.

When to book flights from Portland, Maine to Santiago de los Caballeros

Are you open to changing your travel dates? Check out the ideal times to fly from Portland, Maine to Santiago de los Caballeros according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Portland, Maine to Santiago de los Caballeros (PWM to STI) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland, Maine to Santiago de los Caballeros

Fastest flight time

7h 53m

Direct flights

None
The fastest flight from Portland, Maine to Santiago de los Caballeros takes 7h 53m
There are no direct flights from Portland, Maine to Santiago de los Caballeros. There are no popular flight routes from Portland, Maine to Santiago de los Caballeros.
Search flight deals

  • How far is Portland to Santiago de los Caballeros by plane?

    The straight-line distance from Portland to Santiago de los Caballeros is 1671.8 mi. By plane, this route typically takes 7h 53m.

  • When did momondo last update prices for flights from Portland Airport to Santiago de los Caballeros Airport?

    Prices for flights from Portland Airport to Santiago de los Caballeros Airport refresh daily.

  • How old do you have to be to fly from Portland Airport to Santiago de los Caballeros Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portland Airport to Santiago de los Caballeros Airport.

  • What documentation or ID do you need to fly to Santiago de los Caballeros Airport?

    The travel and health documents you'll need for your trip to Santiago de los Caballeros Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Santiago de los Caballeros Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Portland to Santiago de los Caballeros?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Portland to Santiago de los Caballeros. momondo saves you time and could save you money on your trip.

Can I find flights from Portland to Santiago de los Caballeros with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Santiago de los Caballeros from Portland with this policy.

How can momondo help me find flights from Portland to Santiago de los Caballeros?

Once all potential Portland to Santiago de los Caballeros flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Portland to Santiago de los Caballeros right now. Can momondo alert me if prices change?

Price alerts on flights to Santiago de los Caballeros from Portland are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Santiago de los Caballeros trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 1/24
Sat 1/31
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the Dominican Republic