Which layover airport offers the lowest fares from Montreal to San Antonio?

Flights via Atlanta (ATL) offer the lowest average round-trip price of C$ 640.

Which layover airport has the shortest travel time from Montreal to San Antonio?

Flights connecting via Atlanta (ATL) have the shortest average one-way travel time: 6h 43m.

What is the cheapest airline that flies from Montreal to San Antonio?

United Airlines, WestJet, and American Airlines are the most popular carriers operating from Montreal to San Antonio

Which layover airport has the shortest connection time from Montreal to San Antonio?

Atlanta (ATL) has the shortest average layover time for this route: 2h 18m.

Which airport is the most popular layover for flights between Montreal and San Antonio?

Atlanta (ATL) was the most common stop: 75% of momondo users choosing one-stop flights on this route connected there.

Which airlines fly to San Antonio?

Air Canada, Delta and United Airlines are the top three most popular airlines that fly to San Antonio from Montreal according to our data. Air Canada is the first choice among our users, with 48% of people opting to fly with this airline when travelling to San Antonio. Keep in mind that there are 4 different airlines that fly to San Antonio on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Montreal to San Antonio Airport?

Prices for flights from Montreal to San Antonio Airport are updated daily.

How many operators does momondo search for flights from Montreal to San Antonio Airport?

There are 3 operators available for flights from Montreal to San Antonio Airport as of October 2026.

How old do you have to be to fly from Montreal to San Antonio Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Montreal to San Antonio Airport.

What documentation or ID do you need to fly to San Antonio Airport?

The travel and health documents you'll need for your trip to San Antonio Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at San Antonio Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

C$ 327 Cheap Flights from Montreal to San Antonio in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Montreal to San Antonio

Round-trip

One-way

Last minute

Cheap round-trip flights

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7:00 a.m. - 1:06 p.m.YUL Montreal Pierre Elliott Trudeau Intl-SAT San Antonio

7h 06m1 stop Atlanta Hartsfield-Jackson

4:51 p.m. - 11:51 p.m.SAT San Antonio-YUL Montreal Pierre Elliott Trudeau Intl

6h 00m1 stop Atlanta Hartsfield-Jackson

C$ 564WestJet

Wed, 27 Jan - Wed, 27 Jan

7:00 a.m. - 3:47 p.m.YUL Montreal Pierre Elliott Trudeau Intl-SAT San Antonio

9h 47m1 stop Atlanta Hartsfield-Jackson

4:36 p.m. - 11:48 p.m.SAT San Antonio-YUL Montreal Pierre Elliott Trudeau Intl

6h 12m1 stop Atlanta Hartsfield-Jackson

C$ 571Delta

Thu, 26 Nov - Thu, 3 Dec

2:13 p.m. - 11:14 p.m.YUL Montreal Pierre Elliott Trudeau Intl-SAT San Antonio

10h 01m2 stops Washington, D.C. Dulles Intl Chicago O'Hare Intl

9:35 a.m. - 9:42 p.m.SAT San Antonio-YUL Montreal Pierre Elliott Trudeau Intl

11h 07m2 stops Houston George Bush Intcntl Newark

C$ 571United Airlines

Sat, 23 Jan - Tue, 26 Jan

9:15 a.m. - 9:25 p.m.YUL Montreal Pierre Elliott Trudeau Intl-SAT San Antonio

13h 10m2 stops Washington, D.C. Dulles Intl Houston George Bush Intcntl

2:00 p.m. - 9:17 p.m.SAT San Antonio-YUL Montreal Pierre Elliott Trudeau Intl

6h 17m1 stop Chicago O'Hare Intl

C$ 571United Airlines

Tue, 26 Jan - Sat, 30 Jan

4:55 p.m. - 11:20 p.m.YUL Montreal Pierre Elliott Trudeau Intl-SAT San Antonio

7h 25m1 stop Detroit Metropolitan Wayne County

4:00 p.m. - 11:10 p.m.SAT San Antonio-YUL Montreal Pierre Elliott Trudeau Intl

6h 10m1 stop Detroit Metropolitan Wayne County

C$ 571Delta

Tue, 9 Mar - Tue, 16 Mar

4:50 p.m. - 11:05 p.m.YUL Montreal Pierre Elliott Trudeau Intl-SAT San Antonio

7h 15m1 stop Detroit Metropolitan Wayne County

6:19 a.m. - 5:35 p.m.SAT San Antonio-YUL Montreal Pierre Elliott Trudeau Intl

10h 16m1 stop Atlanta Hartsfield-Jackson

C$ 571Delta

Mon, 25 Jan - Sun, 31 Jan

5:55 p.m. - 8:30 a.m.YUL Montreal Pierre Elliott Trudeau Intl-SAT San Antonio

15h 35m1 stop Houston George Bush Intcntl

6:17 a.m. - 9:42 p.m.SAT San Antonio-YUL Montreal Pierre Elliott Trudeau Intl

14h 25m1 stop Newark

C$ 674Air Canada

Tue, 16 Feb - Wed, 24 Feb

1:10 p.m. - 11:13 p.m.YUL Montreal Pierre Elliott Trudeau Intl-SAT San Antonio

11h 03m2 stops Newark Chicago O'Hare Intl

6:43 a.m. - 9:44 p.m.SAT San Antonio-YUL Montreal Pierre Elliott Trudeau Intl

14h 01m2 stops Chicago O'Hare Intl Toronto Island

C$ 676Air Canada

Tue, 9 Mar - Mon, 15 Mar

6:00 a.m. - 11:43 a.m.YUL Montreal Pierre Elliott Trudeau Intl-SAT San Antonio

6h 43m1 stop Detroit Metropolitan Wayne County

2:31 p.m. - 11:44 p.m.SAT San Antonio-YUL Montreal Pierre Elliott Trudeau Intl

8h 13m1 stop Minneapolis St Paul

C$ 846WestJet

Tue, 26 Jan - Tue, 26 Jan

7:00 a.m. - 1:22 p.m.YUL Montreal Pierre Elliott Trudeau Intl-SAT San Antonio

7h 22m1 stop Atlanta Hartsfield-Jackson

4:00 p.m. - 11:10 p.m.SAT San Antonio-YUL Montreal Pierre Elliott Trudeau Intl

6h 10m1 stop Detroit Metropolitan Wayne County

C$ 866WestJet

Wed, 3 Mar - Wed, 3 Mar

Cheap last-minute flights

Enter your travel dates to find the best prices.

2:46 p.m. - 11:26 p.m.YUL Montreal Pierre Elliott Trudeau Intl-SAT San Antonio

9h 40m1 stop Atlanta Hartsfield-Jackson

5:15 a.m. - 4:15 p.m.SAT San Antonio-YUL Montreal Pierre Elliott Trudeau Intl

10h 00m1 stop Detroit Metropolitan Wayne County

C$ 750Delta

Sat, 31 Oct - Wed, 4 Nov

2:46 p.m. - 11:26 p.m.YUL Montreal Pierre Elliott Trudeau Intl-SAT San Antonio

9h 40m1 stop Atlanta Hartsfield-Jackson

5:30 a.m. - 1:39 p.m.SAT San Antonio-YUL Montreal Pierre Elliott Trudeau Intl

7h 09m1 stop Atlanta Hartsfield-Jackson

C$ 769WestJet

Sat, 31 Oct - Wed, 4 Nov

9:15 a.m. - 10:51 p.m.YUL Montreal Pierre Elliott Trudeau Intl-SAT San Antonio

14h 36m2 stops Washington, D.C. Dulles Intl Houston George Bush Intcntl

12:24 p.m. - 7:48 p.m.SAT San Antonio-YUL Montreal Pierre Elliott Trudeau Intl

6h 24m1 stop Washington, D.C. Dulles Intl

C$ 793United Airlines

Sat, 31 Oct - Thu, 5 Nov

2:46 p.m. - 11:26 p.m.YUL Montreal Pierre Elliott Trudeau Intl-SAT San Antonio

9h 40m1 stop Atlanta Hartsfield-Jackson

5:15 a.m. - 4:15 p.m.SAT San Antonio-YUL Montreal Pierre Elliott Trudeau Intl

10h 00m1 stop Detroit Metropolitan Wayne County

C$ 793Delta

Sat, 31 Oct - Thu, 5 Nov

2:46 p.m. - 11:26 p.m.YUL Montreal Pierre Elliott Trudeau Intl-SAT San Antonio

9h 40m1 stop Atlanta Hartsfield-Jackson

5:30 a.m. - 1:39 p.m.SAT San Antonio-YUL Montreal Pierre Elliott Trudeau Intl

7h 09m1 stop Atlanta Hartsfield-Jackson

C$ 811Delta

Sun, 1 Nov - Wed, 4 Nov

2:46 p.m. - 11:26 p.m.YUL Montreal Pierre Elliott Trudeau Intl-SAT San Antonio

9h 40m1 stop Atlanta Hartsfield-Jackson

5:30 a.m. - 1:39 p.m.SAT San Antonio-YUL Montreal Pierre Elliott Trudeau Intl

7h 09m1 stop Atlanta Hartsfield-Jackson

C$ 834WestJet

Sun, 1 Nov - Wed, 4 Nov

7:00 a.m. - 10:57 p.m.YUL Montreal Pierre Elliott Trudeau Intl-SAT San Antonio

16h 57m2 stops Newark Chicago O'Hare Intl

5:30 a.m. - 9:42 p.m.SAT San Antonio-YUL Montreal Pierre Elliott Trudeau Intl

15h 12m2 stops Houston George Bush Intcntl Newark

C$ 849United Airlines

Sat, 31 Oct - Wed, 4 Nov

4:45 p.m. - 10:57 p.m.YUL Montreal Pierre Elliott Trudeau Intl-SAT San Antonio

7h 12m1 stop Chicago O'Hare Intl

5:30 a.m. - 9:42 p.m.SAT San Antonio-YUL Montreal Pierre Elliott Trudeau Intl

15h 12m2 stops Houston George Bush Intcntl Newark

C$ 849United Airlines

Sat, 31 Oct - Wed, 4 Nov

7:00 a.m. - 5:14 p.m.YUL Montreal Pierre Elliott Trudeau Intl-SAT San Antonio

11h 14m1 stop Atlanta Hartsfield-Jackson

5:30 a.m. - 1:39 p.m.SAT San Antonio-YUL Montreal Pierre Elliott Trudeau Intl

7h 09m1 stop Atlanta Hartsfield-Jackson

C$ 901WestJet

Sat, 31 Oct - Thu, 5 Nov

6:00 p.m. - 8:29 a.m.YUL Montreal Pierre Elliott Trudeau Intl-SAT San Antonio

15h 29m1 stop Houston George Bush Intcntl

5:34 p.m. - 10:17 a.m.SAT San Antonio-YUL Montreal Pierre Elliott Trudeau Intl

15h 43m1 stop Chicago O'Hare Intl

C$ 958Air Canada

Sun, 1 Nov - Fri, 6 Nov

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United Airlines flights from Montreal to San Antonio

Our best United Airlines deals on Montreal to San Antonio flight tickets

United Airlines

23 Jan

YUL2:13 p.m.Montreal Pierre Elliott Trudeau Intl

10h 01m

2 stops

SAT11:14 p.m.San Antonio

30 Jan

SAT5:15 a.m.San Antonio

9h 01m

2 stops

YUL3:16 p.m.Montreal Pierre Elliott Trudeau Intl

C$ 571

United Airlines

26 Jan

YUL9:15 a.m.Montreal Pierre Elliott Trudeau Intl

14h 44m

2 stops

SAT10:59 p.m.San Antonio

28 Jan

SAT7:05 a.m.San Antonio

7h 11m

1 stop

YUL3:16 p.m.Montreal Pierre Elliott Trudeau Intl

C$ 572

United Airlines

26 Jan

YUL2:13 p.m.Montreal Pierre Elliott Trudeau Intl

7h 44m

1 stop

SAT8:57 p.m.San Antonio

28 Jan

SAT7:05 a.m.San Antonio

7h 11m

1 stop

YUL3:16 p.m.Montreal Pierre Elliott Trudeau Intl

C$ 590

Delta flights from Montreal to San Antonio

Our best Delta deals on Montreal to San Antonio flight tickets

Delta

17 Feb

YUL6:15 p.m.Montreal Pierre Elliott Trudeau Intl

7h 13m

1 stop

SAT12:28 a.m.San Antonio

23 Feb

SAT5:30 a.m.San Antonio

10h 33m

1 stop

YUL5:03 p.m.Montreal Pierre Elliott Trudeau Intl

C$ 592

Delta

23 Nov

YUL6:00 a.m.Montreal Pierre Elliott Trudeau Intl

11h 05m

1 stop

SAT4:05 p.m.San Antonio

30 Nov

SAT11:45 a.m.San Antonio

10h 42m

1 stop

YUL11:27 p.m.Montreal Pierre Elliott Trudeau Intl

C$ 603

Delta

17 Feb

YUL6:00 a.m.Montreal Pierre Elliott Trudeau Intl

6h 20m

1 stop

SAT11:20 a.m.San Antonio

26 Feb

SAT6:45 a.m.San Antonio

9h 18m

1 stop

YUL5:03 p.m.Montreal Pierre Elliott Trudeau Intl

C$ 613

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

MontrealSan Antonio

YUL Montreal Pierre Elliott Trudeau Intl - SAT San Antonio

YULSAT

Montreal Pierre Elliott Trudeau Intl

Wed 27/1

7:00 a.m.-1:06 p.m.

1 stop7h 06m

San Antonio

Wed 27/1

4:51 p.m.-11:51 p.m.

1 stop6h 00m

C$ 564

MontrealSan Antonio

YUL Montreal Pierre Elliott Trudeau Intl - SAT San Antonio

YULSAT

Montreal Pierre Elliott Trudeau Intl

Thu 26/11

7:00 a.m.-3:47 p.m.

1 stop9h 47m

San Antonio

Thu 3/12

4:36 p.m.-11:48 p.m.

1 stop6h 12m

C$ 571

MontrealSan Antonio

YUL Montreal Pierre Elliott Trudeau Intl - SAT San Antonio

YULSAT

Montreal Pierre Elliott Trudeau Intl

Sat 23/1

2:13 p.m.-11:14 p.m.

2 stops10h 01m

San Antonio

Tue 26/1

9:35 a.m.-9:42 p.m.

2 stops11h 07m

C$ 571

MontrealSan Antonio

YUL Montreal Pierre Elliott Trudeau Intl - SAT San Antonio

YULSAT

Montreal Pierre Elliott Trudeau Intl

Tue 26/1

9:15 a.m.-9:25 p.m.

2 stops13h 10m

San Antonio

Sat 30/1

2:00 p.m.-9:17 p.m.

1 stop6h 17m

C$ 571

MontrealSan Antonio

YUL Montreal Pierre Elliott Trudeau Intl - SAT San Antonio

YULSAT

Montreal Pierre Elliott Trudeau Intl

Tue 9/3

4:55 p.m.-11:20 p.m.

1 stop7h 25m

San Antonio

Tue 16/3

4:00 p.m.-11:10 p.m.

1 stop6h 10m

C$ 571

MontrealSan Antonio

YUL Montreal Pierre Elliott Trudeau Intl - SAT San Antonio

YULSAT

Montreal Pierre Elliott Trudeau Intl

Mon 25/1

4:50 p.m.-11:05 p.m.

1 stop7h 15m

San Antonio

Sun 31/1

6:19 a.m.-5:35 p.m.

1 stop10h 16m

C$ 571

MontrealSan Antonio

YUL Montreal Pierre Elliott Trudeau Intl - SAT San Antonio

YULSAT

Montreal Pierre Elliott Trudeau Intl

Tue 16/2

5:55 p.m.-8:30 a.m.

1 stop15h 35m

San Antonio

Wed 24/2

6:17 a.m.-9:42 p.m.

1 stop14h 25m

C$ 674

MontrealSan Antonio

YUL Montreal Pierre Elliott Trudeau Intl - SAT San Antonio

YULSAT

Montreal Pierre Elliott Trudeau Intl

Tue 9/3

1:10 p.m.-11:13 p.m.

2 stops11h 03m

San Antonio

Mon 15/3

6:43 a.m.-9:44 p.m.

2 stops14h 01m

C$ 676

MontrealSan Antonio

YUL Montreal Pierre Elliott Trudeau Intl - SAT San Antonio

YULSAT

Montreal Pierre Elliott Trudeau Intl

Tue 26/1

6:00 a.m.-11:43 a.m.

1 stop6h 43m

San Antonio

Tue 26/1

2:31 p.m.-11:44 p.m.

1 stop8h 13m

C$ 846

MontrealSan Antonio

YUL Montreal Pierre Elliott Trudeau Intl - SAT San Antonio

YULSAT

Montreal Pierre Elliott Trudeau Intl

Wed 3/3

7:00 a.m.-1:22 p.m.

1 stop7h 22m

San Antonio

Wed 3/3

4:00 p.m.-11:10 p.m.

1 stop6h 10m

C$ 866

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Montreal to San Antonio

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Layovers

What is the typical price of a round-trip flight between Montreal and San Antonio?

Prices are currently low for flights on this route.

Typical prices usually range from C$ 592 to C$ 655.
The lowest price recently found on this route was C$ 564.

What is the cheapest month to fly to San Antonio?

The cheapest month to fly to San Antonio from Montreal is in August. Flight prices, which tend to average around C$ 566, are often lower during this time because this is during the off-season. If you’re not able to fly to San Antonio in August, then September is your next best option. Flight prices from Montreal to San Antonio during September average around C$ 607.

Can stopping save me money on Montreal to San Antonio flights?

You could potentially save up to 1% on your flight if you consider stops on a Montreal to San Antonio flight.

When to book flights from Montreal to San Antonio

Are you open to changing your travel dates? Check out the ideal times to fly from Montreal to San Antonio according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Montreal to San Antonio (YMQ to SAT) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Montreal to San Antonio

Best price found	C$ 327
Fastest flight time	7h 22m
Direct flights	None

The best one-way flight to San Antonio from Montreal in the past 72 hours is C$ 327. The best round-trip flight deal from Montreal to San Antonio found on momondo in the last 72 hours is C$ 564.

The fastest flight from Montreal to San Antonio takes 7h 22m

There are no direct flights from Montreal to San Antonio. There are no popular flight routes from Montreal to San Antonio.

Search flight deals

Frequently asked questions about flying from Montreal to San Antonio

How far is Montreal to San Antonio by plane?
Montreal and San Antonio are 2812.2 km apart from one another. Typically, this will take 7h 22m by plane in normal conditions.
When did momondo last update prices for flights from Montreal to San Antonio Airport?
Prices for flights from Montreal to San Antonio Airport are updated daily.
How many operators does momondo search for flights from Montreal to San Antonio Airport?
There are 3 operators available for flights from Montreal to San Antonio Airport as of October 2026.
How old do you have to be to fly from Montreal to San Antonio Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Montreal to San Antonio Airport.
What documentation or ID do you need to fly to San Antonio Airport?
The travel and health documents you'll need for your trip to San Antonio Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at San Antonio Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Montreal to San Antonio?
momondo data reveals that the most frequently booked airline on the route from Montreal to San Antonio is American Airlines, representing 100% of all bookings.

Best airlines flying from Montreal to San Antonio

Compare and see reviews for airlines that fly from Montreal to San Antonio with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom C$ 309	Free Cancellation	Rating 7.8 8,696 reviews	Search Delta flights
Air Canada	PriceFrom C$ 526	Free Cancellation	Rating 7.1 11,834 reviews	Search Air Canada flights
WestJet	PriceFrom C$ 563	Free Cancellation	Rating 7.2 3,442 reviews	Search WestJet flights

Why use momondo?

Why should I use momondo to find a flight deal from Montreal to San Antonio?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to San Antonio from Montreal.

Can I find flights from Montreal to San Antonio with flexible booking policies on momondo?

All flight searches from Montreal to San Antonio on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Montreal to San Antonio?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Montreal to San Antonio.

I’m not ready to book a flight from Montreal to San Antonio right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to San Antonio from Montreal. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.