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Cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to Santiago de los Caballeros from C$ 331

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 15/10. Fares are subject to change and may not be available on all flights or dates of travel.
YUL — STI
11 Oct — 18 Oct1
1 adult
1 adult, Economy

Cheap 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 11 September 2025.

Round-trip from

C$ 661

One-way from

C$ 331

Popular in

December

Cheapest in

February

Average price

C$ 909
United Airlines
  • United Airlines
  • 8/10-15/10
  • 3 total stops
  • 29h 45m total
  • Montreal to Santiago de los Caballeros
Search Deals
15/10
  • 15/10
  • 3 total stops
  • 27h 53m total
  • Montreal to Santiago de los Caballeros
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (C$ 201 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 9% potential price decrease (C$ 124 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
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Find flight deals from Pierre Elliott Trudeau Intl to Santiago de los Caballeros

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 11 September 2025.

Mon 29/96:15 a.m.YUL - STI
2 stops19h 31mUnited Airlines
Sat 11/102:07 p.m.STI - YUL
2 stops24h 53mUnited Airlines
Deal found 9/9C$ 676
Wed 1/109:45 a.m.YUL - STI
2 stops16h 01mUnited Airlines
Wed 8/104:23 p.m.STI - YUL
2 stops18h 17mUnited Airlines
Deal found 11/9C$ 689
Sat 11/106:15 a.m.YUL - STI
2 stops19h 31mUnited Airlines
Wed 15/102:07 p.m.STI - YUL
2 stops24h 53mUnited Airlines
Deal found 10/9C$ 705
Fri 21/117:00 a.m.YUL - STI
1 stop6h 53mUnited Airlines
Tue 2/124:00 p.m.STI - YUL
2 stops24h 16mUnited Airlines
Deal found 11/9C$ 707
Mon 13/106:00 a.m.YUL - STI
1 stop6h 57mUnited Airlines
Sat 25/106:00 a.m.STI - YUL
1 stop7h 09mUnited Airlines
Deal found 11/9C$ 759
Fri 12/99:45 a.m.YUL - STI
3 stops29h 27mUnited Airlines
Fri 3/102:07 p.m.STI - YUL
2 stops20h 33mUnited Airlines
Deal found 10/9C$ 784
Wed 15/106:00 a.m.YUL - STI
1 stop6h 57mUnited Airlines
Sun 19/102:07 p.m.STI - YUL
2 stops24h 53mUnited Airlines
Deal found 11/9C$ 826
Mon 13/106:00 a.m.YUL - STI
2 stops18h 24mDelta
Sat 25/106:00 a.m.STI - YUL
2 stops17h 48mDelta
Deal found 11/9C$ 843

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 11 September 2025.
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

Pierre Elliott Trudeau Intl

Fly to

Santiago de los Caballeros

Route

Depart

Return

Price

MontrealSantiago de los Caballeros

YUL - STI

YULSTI

Montreal Pierre Elliott Trudeau Intl

Wed 8/10

6:15 a.m.-1:46 a.m.

2 stops19h 31m

Santiago de los Caballeros

Wed 15/10

2:07 p.m.-10:40 a.m.

2 stops20h 33m

C$ 661

MontrealSantiago de los Caballeros

YUL - STI

YULSTI

Montreal Pierre Elliott Trudeau Intl

Wed 26/11

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

1 stop7h 51m

Santiago de los Caballeros

Fri 5/12

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

1 stop8h 28m

C$ 664

MontrealSantiago de los Caballeros

YUL - STI

YULSTI

Montreal Pierre Elliott Trudeau Intl

Tue 25/11

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

1 stop7h 51m

Santiago de los Caballeros

Wed 3/12

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

1 stop8h 28m

C$ 664

MontrealSantiago de los Caballeros

YUL - STI

YULSTI

Montreal Pierre Elliott Trudeau Intl

Mon 29/9

9:45 a.m.-1:46 a.m.

2 stops16h 01m

Santiago de los Caballeros

Sat 11/10

2:07 p.m.-3:00 p.m.

2 stops24h 53m

C$ 676

MontrealSantiago de los Caballeros

YUL - STI

YULSTI

Montreal Pierre Elliott Trudeau Intl

Wed 1/10

6:00 a.m.-3:12 p.m.

1 stop9h 12m

Santiago de los Caballeros

Wed 8/10

4:23 p.m.-10:40 a.m.

2 stops18h 17m

C$ 689

MontrealSantiago de los Caballeros

YUL - STI

YULSTI

Montreal Pierre Elliott Trudeau Intl

Tue 23/9

9:45 a.m.-1:46 a.m.

3 stops16h 01m

Santiago de los Caballeros

Tue 30/9

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

1 stop7h 09m

C$ 690

MontrealSantiago de los Caballeros

YUL - STI

YULSTI

Montreal Pierre Elliott Trudeau Intl

Wed 15/10

6:45 a.m.-10:38 a.m.

3 stops27h 53m

C$ 331

MontrealSantiago de los Caballeros

YUL - STI

YULSTI

Montreal Pierre Elliott Trudeau Intl

Wed 15/10

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

2 stops24h 52m

C$ 366

MontrealSantiago de los Caballeros

YUL - STI

YULSTI

Montreal Pierre Elliott Trudeau Intl

Sun 28/12

8:30 a.m.-2:53 p.m.

2 stops29h 23m

C$ 597

MontrealSantiago de los Caballeros

YUL - STI

YULSTI

Montreal Pierre Elliott Trudeau Intl

Sat 27/12

6:45 a.m.-10:14 a.m.

2 stops50h 29m

C$ 615

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/9

Showing 1-10 of 15 results
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 time of day to fly from YUL to STI?

Find hourly flight availability from Pierre Elliott Trudeau Intl 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 11 September 2025.

When flying from Montreal Pierre Elliott Trudeau Intl Airport to Santiago de los Caballeros, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 11% versus a flight in the morning.

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 11 September 2025.
Read through reviews of airlines operating flights from Montreal Pierre Elliott Trudeau Intl Airport to Santiago de los Caballeros, such as United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,937 reviews
Check prices

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Food

6.6

Crew

8.1

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

YVR - SFO

It was a good experience. The flight took 45 minutes longer to fly and all passengers had to wait inside the plane till the technical issue was fixed. Overall it was a good experience.
United Airlines
7.4
Good
8,937 reviews
United Airlines
7.4
Good
8,937 reviews
Check prices

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Food

6.6

Crew

8.1

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

YVR - SFO

It was a good experience. The flight took 45 minutes longer to fly and all passengers had to wait inside the plane till the technical issue was fixed. Overall it was a good experience.

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. 1 airline 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$ 661, United Airlines can have you in Santiago de los Caballeros from Montreal Pierre Elliott Trudeau Intl Airport in 19h 31m. Montreal Pierre Elliott Trudeau Intl Airport and Santiago de los Caballeros are separated by a distance of 2910 km.

  • What is the cheapest airline to fly from Montreal Pierre Elliott Trudeau Intl Airport to Santiago de los Caballeros round-trip?

    According to our current data, United Airlines (C$ 608), offers the cheapest pricing from Montreal Pierre Elliott Trudeau Intl Airport to Santiago de los Caballeros. United Airlines is priced at 41% 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.

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 airline flying from Pierre Elliott Trudeau Intl to Santiago de los Caballeros

Discover the top airline 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 11 September 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 608AverageC$ 896FlexibilityNo cancel feeOn-time69%
Search United 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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