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Cheap flights from Montreal to San Antonio from C$ 265

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 2/10. Fares are subject to change and may not be available on all flights or dates of travel.
YMQ — SAT
23 Aug — 30 Aug1
1 adult

Cheap flight deals from Montreal to San Antonio

Discover tips and strategies to find the most affordable flight options for your journey from Montreal (YMQ) to San Antonio (SAT). 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 18 August 2025.

Round-trip from

C$ 544

One-way from

C$ 265

Popular in

July

Cheapest in

November

Average price

C$ 631
United Airlines
  • United Airlines
  • 6/9-8/9
  • 3 total stops
  • 18h 40m total
  • Montreal to San Antonio
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2/10
  • 2/10
  • 2 total stops
  • 29h 55m total
  • Montreal to San Antonio
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (C$ 110 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 30 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 Montreal to San Antonio

Cheapest flights from Montreal to San Antonio
Explore the most affordable flight options available from Montreal to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 August 2025.

Sat 6/96:15 a.m.YUL - SAT
1 stop6h 46mUnited Airlines
Mon 8/97:00 a.m.SAT - YUL
1 stop11h 45mUnited Airlines
Deal found 17/8C$ 544
Thu 4/912:59 p.m.YUL - SAT
1 stop9h 52mAmerican Airlines
Wed 10/96:00 a.m.SAT - YUL
2 stops9h 33mAmerican Airlines
Deal found 17/8C$ 547
Fri 19/93:44 p.m.YUL - SAT
1 stop8h 16mAmerican Airlines
Sat 27/95:00 a.m.SAT - YUL
1 stop8h 49mAmerican Airlines
Deal found 18/8C$ 551
Mon 15/97:50 a.m.YUL - SAT
1 stop15h 04mAmerican Airlines
Thu 18/97:59 a.m.SAT - YUL
1 stop5h 50mAmerican Airlines
Deal found 17/8C$ 557
Fri 24/106:45 a.m.YUL - SAT
2 stops12h 30mMultiple Airlines
Mon 27/107:19 p.m.SAT - YUL
1 stop18h 51mMultiple Airlines
Deal found 17/8C$ 569
Wed 24/911:23 a.m.YUL - SAT
2 stops9h 29mUnited Airlines
Fri 26/97:38 p.m.SAT - YUL
2 stops16h 31mUnited Airlines
Deal found 17/8C$ 572
Fri 19/96:55 p.m.YUL - SAT
1 stop6h 04mDelta
Fri 26/96:35 a.m.SAT - YUL
1 stop10h 14mDelta
Deal found 18/8C$ 580
Fri 24/109:45 a.m.YUL - SAT
2 stops13h 50mUnited Airlines
Mon 27/107:07 a.m.SAT - YUL
1 stop7h 09mUnited Airlines
Deal found 17/8C$ 582
Wed 1/106:45 a.m.YUL - SAT
2 stops15h 07mMultiple Airlines
Wed 8/106:00 a.m.SAT - YUL
2 stops17h 27mMultiple Airlines
Deal found 17/8C$ 589

Cheapflights Fare Finder

 
Customize your flight search to find flights from Montreal to San Antonio 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 18 August 2025.
Use the filters below to find and compare flights from Montreal to San Antonio that are best for you.

Fly from

Montreal

Fly to

San Antonio

Route

Depart

Return

Price

MontrealSan Antonio

YUL - SAT

YULSAT

Montreal Pierre Elliott Trudeau Intl

Wed 1/10

9:15 a.m.-10:35 p.m.

2 stops14h 20m

San Antonio

Wed 8/10

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

1 stop6h 09m

C$ 544

MontrealSan Antonio

YUL - SAT

YULSAT

Montreal Pierre Elliott Trudeau Intl

Sat 6/9

6:15 a.m.-12:01 p.m.

1 stop6h 46m

San Antonio

Mon 8/9

7:00 a.m.-7:45 p.m.

1 stop11h 45m

C$ 544

MontrealSan Antonio

YUL - SAT

YULSAT

Montreal Pierre Elliott Trudeau Intl

Sat 13/9

2:20 p.m.-10:48 p.m.

2 stops9h 28m

San Antonio

Sat 20/9

5:30 a.m.-3:00 p.m.

2 stops8h 30m

C$ 546

MontrealSan Antonio

YUL - SAT

YULSAT

Montreal Pierre Elliott Trudeau Intl

Thu 2/10

6:45 a.m.-11:40 a.m.

2 stops29h 55m

C$ 265

MontrealSan Antonio

YUL - SAT

YULSAT

Montreal Pierre Elliott Trudeau Intl

Mon 22/9

6:45 a.m.-6:12 p.m.

2 stops12h 27m

C$ 296

MontrealSan Antonio

YUL - SAT

YULSAT

Montreal Pierre Elliott Trudeau Intl

Tue 30/9

6:00 a.m.-3:25 p.m.

2 stops10h 25m

C$ 314

MontrealSan Antonio

YUL - SAT

YULSAT

Montreal Pierre Elliott Trudeau Intl

Mon 22/9

6:00 a.m.-3:26 p.m.

2 stops10h 26m

C$ 314

MontrealSan Antonio

YUL - SAT

YULSAT

Montreal Pierre Elliott Trudeau Intl

Sat 6/9

2:20 p.m.-8:33 p.m.

1 stop7h 13m

C$ 314

MontrealSan Antonio

YUL - SAT

YULSAT

Montreal Pierre Elliott Trudeau Intl

Wed 1/10

6:00 a.m.-3:25 p.m.

2 stops10h 25m

C$ 314

MontrealSan Antonio

YUL - SAT

YULSAT

Montreal Pierre Elliott Trudeau Intl

Mon 22/9

12:59 p.m.-9:54 p.m.

1 stop9h 55m

C$ 316

Flights are sorted by cheapest round-trip flights first.

Deals found on 18/8

Best time to book a flight from Montreal to San Antonio

Have a flexible travel schedule? Discover the best time to fly to San Antonio from Montreal 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 to San Antonio

What is the cheapest month to book a flight from Montreal to San Antonio?

Currently, July is the cheapest month in which you can book a flight from Montreal to San Antonio (average of C$ 325). Flying from Montreal to San Antonio in May is currently the most expensive (average of C$ 443). 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 to San Antonio?

What’s the top layover airport for flights from Montreal to San Antonio?

Share of one-stop round-trip flights from Montreal to San Antonio chosen by Cheapflights users in the past 12 months, using the same layover each way.

Detroit (DTW) – chosen by Cheapflights users on 73% of one-stop itineraries from Montreal to San Antonio on Cheapflights.

What’s the cheapest layover airport for flights from Montreal to San Antonio?

Average round-trip fare for 1-stop flights from Montreal to San Antonio, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Houston (IAH) is the most affordable 1-stop option, with an average round-trip price of C$ 420.

What’s the fastest layover option from Montreal to San Antonio?

Shortest average travel time for 1-stop one-way flights from Montreal to San Antonio, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Atlanta (ATL) have the shortest average one-way travel time for 1-stop routes: 7h 04m.

Which airport typically offers the quickest layover for flights from Montreal to San Antonio?

Average layover duration for 1-stop one-way flights from Montreal to San Antonio, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Atlanta (ATL) offer the fastest connection on this route, with an average layover time of 1h 13m.

Reviews of airlines servicing San Antonio

Get insights into the airlines that provide service to San Antonio. 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 San Antonio. Reviews last updated 18 August 2025.
Read through reviews of airlines operating flights from Montreal to San Antonio, such as Delta,United Airlines, andWestJet. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,981 reviews
Check prices

Crew

8.5

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Reviews

1 / 20
6.0
Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others
Delta
8.0
Very good
7,981 reviews
Delta
8.0
Very good
7,981 reviews
Check prices

Crew

8.5

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Reviews

1 / 20
6.0
Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others
United Airlines
7.4
Good
8,925 reviews
Delta
8.0
Very good
7,981 reviews
Check prices

Crew

8.5

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Reviews

1 / 20
6.0
Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others
WestJet
7.2
Good
3,023 reviews
Delta
8.0
Very good
7,981 reviews
Check prices

Crew

8.5

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Reviews

1 / 20
6.0
Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others
Air Canada
7.1
Good
9,992 reviews
Delta
8.0
Very good
7,981 reviews
Check prices

Crew

8.5

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Reviews

1 / 20
6.0
Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others

Related info for your journey

Find useful and relevant information for your journey from Montreal to San Antonio. 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 San Antonio from Montreal?

    San Antonio (SAT), located 12.2 km from the city centre, is the airport you fly into when you book flights from Montreal to San Antonio. 4 airlines have flights to San Antonio from Montreal on a regular basis. Booking flights from Montreal to San Antonio should not be difficult; the airport handles an average of 0 inbound flights from Montreal per day.

  • How long is the flight from Montreal to San Antonio?

    Departing from Montreal to San Antonio will take you 14h 20m. There are 2787 km between Montreal and San Antonio.

  • What are the cheapest airlines flying from Montreal to San Antonio round-trip?

    Currently priced at C$ 336, United Airlines will fly you from Montreal to San Antonio and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Delta and Air Canada - these airlines can fly you to your destination from C$ 355 and C$ 373, respectively. United Airlines is 44% cheaper than the average price of flights available within the next 90 days to this destination.

  • Can I find deals for flights from Montreal to San Antonio that include hotel bookings?

    Yes. In addition to deals on Montreal to San Antonio flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Montreal to San Antonio?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Montreal to San Antonio.

  • Can I find deals for business class flights from Montreal to San Antonio?

    Yes. Cheapflights offers flight deals from Montreal to San Antonio 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 to San Antonio?

    Currently, July is the cheapest month in which you can book a flight from Montreal to San Antonio (average of C$ 325). Flying from Montreal to San Antonio in May is currently the most expensive (average of C$ 443). 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

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Alternative routes for Montreal to San Antonio

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Montreal to San Antonio

Discover the top 4 airlines that operate flights from Montreal to San Antonio. 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 18 August 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 336AverageC$ 451FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
DeltaCheapestC$ 355AverageC$ 494FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air CanadaCheapestC$ 373AverageC$ 500FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
WestJetCheapestC$ 464AverageC$ 644FlexibilityNo cancel feeOn-time60%
Search WestJet flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Montreal to San Antonio?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Montreal to San Antonio. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Montreal to San Antonio?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Montreal to San Antonio for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Montreal to San Antonio with no change fees?

Yes! Cheapflights helps users easily find flights from Montreal to San Antonio with no change fees.

Can Cheapflights notify me if prices for flights from Montreal to San Antonio become cheaper?

Of course! You can now track prices for flights from Montreal to San Antonio and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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