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Cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to Santiago de los Caballeros from C$ 520

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 31/12. Fares are subject to change and may not be available on all flights or dates of travel.
YUL — STI
22 Aug — 29 Aug1
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 23 July 2026.

Sat 24/106:10 a.m.
YUL
-
STI
2 stops16h 42m
United Airlines
Tue 27/105:00 a.m.
STI
-
YUL
2 stops16h 01m
United Airlines
Deal found 21/7C$ 857
Tue 3/117:00 a.m.
YUL
-
STI
1 stop15h 51m
United Airlines
Wed 18/116:00 a.m.
STI
-
YUL
2 stops14h 48m
United Airlines
Deal found 21/7C$ 860
Sat 29/87:14 a.m.
YUL
-
STI
1 stop13h 53m
American Airlines
Fri 11/93:15 p.m.
STI
-
YUL
2 stops23h 20m
American Airlines
Deal found 19/7C$ 886
Sat 19/95:34 p.m.
YUL
-
STI
2 stops20h 41m
American Airlines
Sun 27/93:15 p.m.
STI
-
YUL
2 stops18h 34m
American Airlines
Deal found 21/7C$ 891
Wed 4/116:10 a.m.
YUL
-
STI
2 stops28h 39m
United Airlines
Mon 16/116:00 a.m.
STI
-
YUL
2 stops14h 48m
United Airlines
Deal found 21/7C$ 892
Thu 22/102:20 p.m.
YUL
-
STI
2 stops22h 37m
United Airlines
Thu 29/103:00 p.m.
STI
-
YUL
2 stops22h 51m
United Airlines
Deal found 18/7C$ 893
Sat 19/93:25 p.m.
YUL
-
STI
1 stop7h 27m
United Airlines
Sun 27/96:00 a.m.
STI
-
YUL
1 stop10h 10m
United Airlines
Deal found 19/7C$ 898

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 23 July 2026.

Round-trip from

C$ 857

One-way from

C$ 520

Popular in

July

Cheapest in

March

Average price

C$ 1,361
United Airlines
  • United Airlines
  • 24/10-27/10
  • 4 total stops
  • 32h 43m total
  • Montreal to Santiago de los Caballeros
Search Deals
American Airlines
  • American Airlines
  • 31/12
  • 2 total stops
  • 12h 33m total
  • Montreal to Santiago de los Caballeros
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (C$ 203 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 45 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 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 23 July 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 24/10

6:10 a.m.-10:52 p.m.

2 stops16h 42m

Santiago de los Caballeros

Tue 27/10

5:00 a.m.-9:01 p.m.

2 stops16h 01m

C$ 857
Quickest round-trip

MontrealSantiago de los Caballeros

YUL - STI

YULSTI

Montreal Pierre Elliott Trudeau Intl

Tue 3/11

3:00 p.m.-11:51 p.m.

1 stop7h 51m

Santiago de los Caballeros

Thu 19/11

6:00 a.m.-1:28 p.m.

1 stop8h 28m

C$ 860

MontrealSantiago de los Caballeros

YUL - STI

YULSTI

Montreal Pierre Elliott Trudeau Intl

Mon 12/10

6:00 a.m.-10:52 p.m.

1 stop16h 52m

Santiago de los Caballeros

Sat 17/10

6:00 a.m.-4:10 p.m.

1 stop10h 10m

C$ 861

MontrealSantiago de los Caballeros

YUL - STI

YULSTI

Montreal Pierre Elliott Trudeau Intl

Wed 9/9

11:23 a.m.-3:12 p.m.

1 stop27h 49m

Santiago de los Caballeros

Sun 20/9

6:00 a.m.-1:09 p.m.

1 stop7h 09m

C$ 861
Cheapest one-way
Quickest one-way

MontrealSantiago de los Caballeros

YUL - STI

YULSTI

Montreal Pierre Elliott Trudeau Intl

Thu 31/12

7:30 a.m.-9:03 p.m.

2 stops12h 33m

C$ 520

MontrealSantiago de los Caballeros

YUL - STI

YULSTI

Montreal Pierre Elliott Trudeau Intl

Fri 4/9

6:10 a.m.-3:12 p.m.

2 stops33h 02m

C$ 523

MontrealSantiago de los Caballeros

YUL - STI

YULSTI

Montreal Pierre Elliott Trudeau Intl

Tue 1/9

2:20 p.m.-3:12 p.m.

2 stops24h 52m

C$ 528

MontrealSantiago de los Caballeros

YUL - STI

YULSTI

Montreal Pierre Elliott Trudeau Intl

Fri 14/8

4:15 p.m.-12:14 p.m.

1 stop19h 59m

C$ 528

MontrealSantiago de los Caballeros

YUL - STI

YULSTI

Montreal Pierre Elliott Trudeau Intl

Fri 14/8

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

2 stops27h 42m

C$ 528

MontrealSantiago de los Caballeros

YUL - STI

YULSTI

Montreal Pierre Elliott Trudeau Intl

Fri 14/8

10:35 a.m.-1:45 a.m.

2 stops15h 10m

C$ 551

Flights are sorted by cheapest round-trip flights first.

Deals found on 21/7

Showing 1-10 of 12 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$ 598). Flying from Montreal Pierre Elliott Trudeau Intl Airport to Santiago de los Caballeros in July is currently the most expensive (average of C$ 1,361). 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.

How much does it cost to fly round-trip from Montreal Pierre Elliott Trudeau Intl Airport to Santiago de los Caballeros?

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 23 July 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
10,020 reviews
Check prices

Comfort

7.3

Overall

7.4

Boarding

7.7

Entertainment

7.1

Food

6.7

Crew

8.1

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
10,020 reviews
United Airlines
7.4
Good
10,020 reviews
Check prices

Comfort

7.3

Overall

7.4

Boarding

7.7

Entertainment

7.1

Food

6.7

Crew

8.1

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
11,834 reviews
United Airlines
7.4
Good
10,020 reviews
Check prices

Comfort

7.3

Overall

7.4

Boarding

7.7

Entertainment

7.1

Food

6.7

Crew

8.1

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$ 857, United Airlines can have you in Santiago de los Caballeros from Montreal Pierre Elliott Trudeau Intl Airport in 16h 42m. Montreal Pierre Elliott Trudeau Intl Airport and Santiago de los Caballeros are separated by a distance of 2910 km.

  • 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$ 618), and American Airlines (C$ 890) offers the cheapest pricing from Montreal Pierre Elliott Trudeau Intl Airport to Santiago de los Caballeros. United Airlines is priced at 39% 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$ 598). Flying from Montreal Pierre Elliott Trudeau Intl Airport to Santiago de los Caballeros in July is currently the most expensive (average of C$ 1,361). 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 23 July 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 618AverageC$ 988FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapestC$ 890AverageC$ 1,226FlexibilityNo 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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