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Cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to Santiago de los Caballeros from C$ 413

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 17/10. Fares are subject to change and may not be available on all flights or dates of travel.
YUL — STI
27 May — 3 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Pierre Elliott Trudeau Intl to Santiago de los Caballeros

Enter your travel dates to find the best prices.

Cheapest flights from Pierre Elliott Trudeau Intl to Santiago de los Caballeros
Explore the most affordable flight options available from Pierre Elliott Trudeau Intl to Santiago de los Caballeros. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 27 April 2026.

Sat 17/107:55 a.m.
YUL
-
STI
1 stop28h 27m
American Airlines
Tue 3/112:32 p.m.
STI
-
YUL
1 stop22h 43m
American Airlines
Deal found 22/4C$ 739
Sun 26/49:15 a.m.
YUL
-
STI
2 stops29h 57m
Lufthansa
Fri 29/54:23 p.m.
STI
-
YUL
2 stops22h 17m
Lufthansa
Deal found 26/4C$ 805
Wed 10/67:10 a.m.
YUL
-
STI
1 stop7h 27m
American Airlines
Wed 17/63:39 p.m.
STI
-
YUL
1 stop7h 50m
American Airlines
Deal found 25/4C$ 853
Thu 7/53:25 p.m.
YUL
-
STI
1 stop7h 27m
United Airlines
Tue 12/54:23 p.m.
STI
-
YUL
2 stops29h 03m
United Airlines
Deal found 22/4C$ 869

Find flight deals from Pierre Elliott Trudeau Intl to Santiago de los Caballeros

Discover tips and strategies to find the most affordable flight options for your journey from Pierre Elliott Trudeau Intl (YUL) 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 27 April 2026.

Round-trip from

C$ 739

One-way from

C$ 413

Popular in

July

Cheapest in

March

Average price

C$ 955
American Airlines
  • American Airlines
  • 17/10-3/11
  • 2 total stops
  • 51h 10m total
  • Montreal to Santiago de los Caballeros
Search Deals
United Airlines
  • United Airlines
  • 17/10
  • 2 total stops
  • 27h 42m total
  • Montreal to Santiago de los Caballeros
Search Deals
Highest demand for flights based on searches. 20% potential increase in price (C$ 325 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease (C$ 101 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Pierre Elliott Trudeau Intl 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 629,999 searches. Data last updated 27 April 2026.
Use the filters below to find and compare flights from Montreal Pierre Elliott Trudeau Intl Airport to Santiago de los Caballeros that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MontrealSantiago de los Caballeros

YUL - STI

YULSTI

Montreal Pierre Elliott Trudeau Intl

Sat 17/10

7:55 a.m.-12:22 p.m.

1 stop28h 27m

Santiago de los Caballeros

Tue 3/11

7:00 a.m.-10:59 p.m.

2 stops16h 59m

C$ 745

MontrealSantiago de los Caballeros

YUL - STI

YULSTI

Montreal Pierre Elliott Trudeau Intl

Sat 17/10

2:20 p.m.-12:57 p.m.

2 stops22h 37m

Santiago de los Caballeros

Tue 3/11

12:52 p.m.-10:20 a.m.

2 stops22h 28m

C$ 873

MontrealSantiago de los Caballeros

YUL - STI

YULSTI

Montreal Pierre Elliott Trudeau Intl

Fri 8/5

4:30 p.m.-10:52 p.m.

2 stops30h 22m

Santiago de los Caballeros

Thu 14/5

6:00 a.m.-2:52 p.m.

2 stops32h 52m

C$ 931
Quickest round-trip

MontrealSantiago de los Caballeros

YUL - STI

YULSTI

Montreal Pierre Elliott Trudeau Intl

Thu 4/6

7:51 a.m.-9:12 p.m.

2 stops13h 21m

Santiago de los Caballeros

Sun 7/6

7:04 a.m.-9:38 p.m.

2 stops14h 34m

C$ 955

MontrealSantiago de los Caballeros

YUL - STI

YULSTI

Montreal Pierre Elliott Trudeau Intl

Sat 9/5

8:40 a.m.-12:57 p.m.

2 stops28h 17m

Santiago de los Caballeros

Sat 16/5

4:23 p.m.-5:38 p.m.

2 stops25h 15m

C$ 966

MontrealSantiago de los Caballeros

YUL - STI

YULSTI

Montreal Pierre Elliott Trudeau Intl

Tue 28/7

9:30 a.m.-1:55 a.m.

1 stop16h 25m

Santiago de los Caballeros

Tue 18/8

8:53 p.m.-8:43 a.m.

1 stop11h 50m

C$ 1,028

MontrealSantiago de los Caballeros

YUL - STI

YULSTI

Montreal Pierre Elliott Trudeau Intl

Sat 1/8

9:30 a.m.-1:55 a.m.

1 stop16h 25m

Santiago de los Caballeros

Fri 14/8

8:53 p.m.-8:43 a.m.

1 stop11h 50m

C$ 1,028

MontrealSantiago de los Caballeros

YUL - STI

YULSTI

Montreal Pierre Elliott Trudeau Intl

Mon 3/8

9:30 a.m.-1:55 a.m.

1 stop16h 25m

Santiago de los Caballeros

Thu 13/8

8:53 p.m.-8:43 a.m.

1 stop11h 50m

C$ 1,095
Cheapest one-way

MontrealSantiago de los Caballeros

YUL - STI

YULSTI

Montreal Pierre Elliott Trudeau Intl

Sat 17/10

9:15 a.m.-12:57 p.m.

2 stops27h 42m

C$ 413

MontrealSantiago de los Caballeros

YUL - STI

YULSTI

Montreal Pierre Elliott Trudeau Intl

Mon 1/6

7:51 a.m.-12:21 p.m.

1 stop28h 30m

C$ 414

Flights are sorted by cheapest round-trip flights first.

Deals found on 26/4

Showing 1-10 of 16 resultsSorted by cheapest first
1
2

Best time to book a flight from Pierre Elliott Trudeau Intl to Santiago de los Caballeros

Have a flexible travel schedule? Discover the best time to fly to Santiago de los Caballeros from Pierre Elliott Trudeau Intl 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 Montreal Pierre Elliott Trudeau Intl Airport to Santiago de los Caballeros

What is the cheapest month to book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Santiago de los Caballeros?

Currently, March is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Santiago de los Caballeros (average of C$ 579). Flying from Montreal Pierre Elliott Trudeau Intl Airport to Santiago de los Caballeros in July is currently the most expensive (average of C$ 1,753). 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 27 April 2026.
Read through reviews of airlines operating flights from Montreal Pierre Elliott Trudeau Intl Airport to Santiago de los Caballeros, such as United Airlines and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,665 reviews
Check prices

Food

6.6

Boarding

7.7

Comfort

7.3

Crew

8.1

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
United Airlines
7.4
Good
9,665 reviews
United Airlines
7.4
Good
9,665 reviews
Check prices

Food

6.6

Boarding

7.7

Comfort

7.3

Crew

8.1

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
American Airlines
7.1
Good
11,668 reviews
United Airlines
7.4
Good
9,665 reviews
Check prices

Food

6.6

Boarding

7.7

Comfort

7.3

Crew

8.1

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats

Related info for your journey

Find useful and relevant information for your journey from Pierre Elliott Trudeau Intl 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 airport do you fly into for flights to Santiago de los Caballeros from Montreal Pierre Elliott Trudeau Intl?

    Santiago de los Caballeros (STI), located 10.9 km from the city centre, is the airport you fly into when you book flights from Montreal Pierre Elliott Trudeau Intl to Santiago de los Caballeros. 2 airlines have flights to Santiago from Montreal Pierre Elliott Trudeau Intl on a regular basis. Booking flights from Montreal Pierre Elliott Trudeau Intl to Santiago de los Caballeros should not be difficult; the airport handles an average of 0 inbound flights from Montreal Pierre Elliott Trudeau Intl per day.

  • How long is the flight from Montreal Pierre Elliott Trudeau Intl Airport to Santiago de los Caballeros?

    For as low as C$ 873, American Airlines can have you in Santiago de los Caballeros from Montreal Pierre Elliott Trudeau Intl Airport in 22h 37m. Montreal Pierre Elliott Trudeau Intl Airport and Santiago de los Caballeros are separated by a distance of 2910 km. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Montreal Pierre Elliott Trudeau Intl Airport to Santiago de los Caballeros round-trip?

    According to our current data, United Airlines (C$ 599), and American Airlines (C$ 827) offers the cheapest pricing from Montreal Pierre Elliott Trudeau Intl Airport to Santiago de los Caballeros. United Airlines is priced at 36% lower than the current average price of a flight leaving 3 months from now.

  • Can I find deals for flights from Pierre Elliott Trudeau Intl to Santiago de los Caballeros that include hotel bookings?

    Yes. In addition to deals on Pierre Elliott Trudeau Intl to Santiago de los Caballeros flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Pierre Elliott Trudeau Intl 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 Pierre Elliott Trudeau Intl to Santiago de los Caballeros.

  • Can I find deals for business class flights from Pierre Elliott Trudeau Intl to Santiago de los Caballeros?

    Yes. Cheapflights offers flight deals from Pierre Elliott Trudeau Intl 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 Montreal Pierre Elliott Trudeau Intl Airport to Santiago de los Caballeros?

    Currently, March is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Santiago de los Caballeros (average of C$ 579). Flying from Montreal Pierre Elliott Trudeau Intl Airport to Santiago de los Caballeros in July is currently the most expensive (average of C$ 1,753). 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 Pierre Elliott Trudeau Intl 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 Pierre Elliott Trudeau Intl to Santiago de los Caballeros

Discover the top 2 airlines that operate flights from Pierre Elliott Trudeau Intl 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 629,999 searches. Data last updated 27 April 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 599AverageC$ 898FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapestC$ 827AverageC$ 1,194FlexibilityNo cancel feeOn-time71%
Search American Airlines flights

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How does Cheapflights help users find flights from Pierre Elliott Trudeau Intl to Santiago de los Caballeros?

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Can Cheapflights find flights from Pierre Elliott Trudeau Intl to Santiago de los Caballeros with no change fees?

Need flexible booking options for your flight to Santiago de los Caballeros from Pierre Elliott Trudeau Intl? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Pierre Elliott Trudeau Intl to Santiago de los Caballeros become cheaper?

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