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Cheap flights from Montreal to San Antonio from C$ 358

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 15/12. Fares are subject to change and may not be available on all flights or dates of travel.
YMQ — SAT
6 Dec — 13 Dec1
1 adult
1 adult, Economy, 0 bags

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 6 November 2025.

Round-trip from

C$ 563

One-way from

C$ 358

Popular in

July

Cheapest in

January

Average price

C$ 502
24/1-28/1
  • 24/1-28/1
  • 3 total stops
  • 31h 00m total
  • Montreal to San Antonio
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United Airlines
  • United Airlines
  • 15/12
  • 1 total stop
  • 7h 14m total
  • Montreal to San Antonio
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (C$ 184 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 29 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
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Find flight deals from Montreal to San Antonio

Enter your travel dates to find the best prices.

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 6 November 2025.

Mon 17/117:25 p.m.YUL - SAT
1 stop15h 38mMultiple Airlines
Mon 24/118:33 p.m.SAT - YUL
2 stops16h 49mMultiple Airlines
Deal found 4/11C$ 618
Thu 18/126:30 p.m.YUL - SAT
1 stop7h 04mDelta
Thu 25/121:33 p.m.SAT - YUL
1 stop9h 26mDelta
Deal found 6/11C$ 631
Thu 25/126:00 a.m.YUL - SAT
1 stop7h 14mUnited Airlines
Tue 30/127:05 a.m.SAT - YUL
1 stop7h 11mUnited Airlines
Deal found 6/11C$ 670
Mon 17/117:00 a.m.YUL - SAT
1 stop9h 52mDelta
Mon 24/118:00 a.m.SAT - YUL
1 stop8h 21mDelta
Deal found 6/11C$ 673
Thu 18/125:10 p.m.YUL - SAT
2 stops24h 51mMultiple Airlines
Sat 27/1212:45 p.m.SAT - YUL
1 stop10h 45mMultiple Airlines
Deal found 6/11C$ 704
Thu 18/125:10 p.m.YUL - SAT
2 stops24h 51mMultiple Airlines
Fri 26/1212:45 p.m.SAT - YUL
1 stop10h 45mMultiple Airlines
Deal found 6/11C$ 735
Fri 19/125:10 p.m.YUL - SAT
2 stops31h 16mMultiple Airlines
Thu 25/1212:45 p.m.SAT - YUL
1 stop10h 45mMultiple Airlines
Deal found 6/11C$ 760
Fri 19/123:51 p.m.YUL - SAT
1 stop12h 09mAmerican Airlines
Sat 27/126:25 a.m.SAT - YUL
1 stop15h 14mAmerican Airlines
Deal found 6/11C$ 783

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 6 November 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

Sat 24/1

5:25 p.m.-9:30 a.m.

2 stops17h 05m

San Antonio

Wed 28/1

6:30 a.m.-9:25 p.m.

1 stop13h 55m

C$ 563

MontrealSan Antonio

YUL - SAT

YULSAT

Montreal Pierre Elliott Trudeau Intl

Mon 17/11

7:25 p.m.-10:03 a.m.

1 stop15h 38m

San Antonio

Mon 24/11

8:33 p.m.-2:22 p.m.

2 stops16h 49m

C$ 618

MontrealSan Antonio

YUL - SAT

YULSAT

Montreal Pierre Elliott Trudeau Intl

Fri 3/4

6:15 p.m.-12:14 a.m.

1 stop6h 59m

San Antonio

Tue 7/4

2:10 p.m.-11:54 p.m.

1 stop8h 44m

C$ 631

MontrealSan Antonio

YUL - SAT

YULSAT

Montreal Pierre Elliott Trudeau Intl

Tue 17/3

2:13 p.m.-10:33 p.m.

2 stops9h 20m

San Antonio

Fri 20/3

12:10 p.m.-8:32 p.m.

1 stop7h 22m

C$ 631

MontrealSan Antonio

YUL - SAT

YULSAT

Montreal Pierre Elliott Trudeau Intl

Mon 23/2

5:55 p.m.-12:36 a.m.

1 stop7h 41m

San Antonio

Wed 25/2

4:29 p.m.-11:59 p.m.

1 stop6h 30m

C$ 631

MontrealSan Antonio

YUL - SAT

YULSAT

Montreal Pierre Elliott Trudeau Intl

Tue 27/1

9:15 a.m.-7:41 p.m.

2 stops11h 26m

San Antonio

Sat 31/1

7:05 a.m.-7:48 p.m.

1 stop11h 43m

C$ 631

MontrealSan Antonio

YUL - SAT

YULSAT

Montreal Pierre Elliott Trudeau Intl

Tue 27/1

12:50 p.m.-8:27 p.m.

1 stop8h 37m

San Antonio

Sat 31/1

5:30 a.m.-12:04 p.m.

1 stop5h 34m

C$ 631

MontrealSan Antonio

YUL - SAT

YULSAT

Montreal Pierre Elliott Trudeau Intl

Thu 18/12

2:13 p.m.-10:54 p.m.

2 stops9h 41m

San Antonio

Thu 25/12

7:05 a.m.-3:16 p.m.

1 stop7h 11m

C$ 631

MontrealSan Antonio

YUL - SAT

YULSAT

Montreal Pierre Elliott Trudeau Intl

Thu 18/12

6:30 p.m.-12:34 a.m.

1 stop7h 04m

San Antonio

Sat 27/12

6:00 a.m.-1:49 p.m.

1 stop6h 49m

C$ 631

MontrealSan Antonio

YUL - SAT

YULSAT

Montreal Pierre Elliott Trudeau Intl

Thu 18/12

6:30 p.m.-12:34 a.m.

1 stop7h 04m

San Antonio

Fri 26/12

4:45 p.m.-11:59 p.m.

1 stop6h 14m

C$ 631

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/11

Showing 1-10 of 15 results
1
2

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$ 267). Flying from Montreal to San Antonio in June is currently the most expensive (average of C$ 585). 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 65% 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.

Chicago (ORD) is the most affordable 1-stop option, with an average round-trip price of C$ 427.

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 Detroit (DTW) have the shortest average one-way travel time for 1-stop routes: 6h 35m.

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 Detroit (DTW) offer the fastest connection on this route, with an average layover time of 1h 03m.

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 6 November 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
7.9
Good
8,001 reviews
Check prices

Entertainment

7.9

Food

7.3

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,001 reviews
Delta
7.9
Good
8,001 reviews
Check prices

Entertainment

7.9

Food

7.3

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,007 reviews
Delta
7.9
Good
8,001 reviews
Check prices

Entertainment

7.9

Food

7.3

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
WestJet
7.2
Good
3,155 reviews
Delta
7.9
Good
8,001 reviews
Check prices

Entertainment

7.9

Food

7.3

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Air Canada
7.1
Good
10,416 reviews
Delta
7.9
Good
8,001 reviews
Check prices

Entertainment

7.9

Food

7.3

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

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 6h 59m. There are 2787 km between Montreal and San Antonio. Both multi-stop and direct flights can be found to your destination and back.

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

    Currently priced at C$ 343, 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$ 362 and C$ 392, respectively. United Airlines is 45% 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$ 267). Flying from Montreal to San Antonio in June is currently the most expensive (average of C$ 585). 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 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 6 November 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 343AverageC$ 421FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
DeltaCheapestC$ 362AverageC$ 504FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air CanadaCheapestC$ 392AverageC$ 493FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
WestJetCheapestC$ 482AverageC$ 778FlexibilityNo cancel feeOn-time60%
Search WestJet flights

Fly with Cheapflights

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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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