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

Philadelphia (PHL) was the most common stop: 38% of momondo users choosing one-stop flights on this route connected there.

Which airlines fly to San Diego?

Air Canada, United Airlines and American Airlines are the top three most popular airlines that fly to San Diego from Montreal according to our data. Air Canada is the first choice among our users, with 46% of people opting to fly with this airline when travelling to San Diego. Keep in mind that there are 6 different airlines that fly to San Diego on a routine basis, so you have a few additional options to choose from.

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

Flights connecting via Denver (DEN) have the shortest average one-way travel time: 8h 05m.

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

Flights via Toronto (YYZ) offer the lowest average round-trip price of C$ 415.

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

Atlanta (ATL) has the shortest average layover time for this route: 1h 00m.

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

Delta and Air Canada are the most popular carriers operating from Montreal to San Diego

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

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

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

There are 6 operators available for flights from Montreal to San Diego Airport as of December 2025.

How old do you have to be to fly from Montreal to San Diego 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 Diego Airport.

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

The travel and health documents you'll need for your trip to San Diego 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 Diego Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

C$ 220 Cheap Flights from Montreal to San Diego in 2025/26

1 adult

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Cheap round-trip flights

Enter your travel dates to find the best prices.

7:30 a.m. - 10:58 p.m.

YUL

SAN

18h 28m1 stop

3:23 p.m. - 3:09 p.m.

SAN

YUL

20h 46m1 stop

C$ 519American Airlines

Fri, 6 Feb - Fri, 13 Feb

7:30 p.m. - 11:47 a.m.

YUL

SAN

19h 17m1 stop

2:52 p.m. - 3:57 p.m.

SAN

YUL

22h 05m2 stops

C$ 520Multiple Airlines

Tue, 3 Feb - Fri, 6 Feb

12:59 p.m. - 10:58 p.m.

YUL

SAN

12h 59m1 stop

6:20 a.m. - 10:59 p.m.

SAN

YUL

13h 39m2 stops

C$ 526American Airlines

Thu, 5 Feb - Mon, 9 Feb

7:30 a.m. - 7:12 p.m.

YUL

SAN

14h 42m2 stops

6:20 a.m. - 10:59 p.m.

SAN

YUL

13h 39m2 stops

C$ 533American Airlines

Thu, 5 Feb - Mon, 9 Feb

7:30 a.m. - 4:05 p.m.

YUL

SAN

11h 35m1 stop

7:00 a.m. - 3:31 p.m.

SAN

YUL

5h 31mdirect

C$ 534Air Canada

Wed, 6 May - Mon, 11 May

6:00 a.m. - 2:04 p.m.

YUL

SAN

11h 04m1 stop

9:40 p.m. - 11:47 a.m.

SAN

YUL

11h 07m1 stop

C$ 540Delta

Sun, 3 May - Mon, 11 May

12:59 p.m. - 10:58 p.m.

YUL

SAN

12h 59m1 stop

9:24 a.m. - 10:59 p.m.

SAN

YUL

10h 35m1 stop

C$ 545American Airlines

Thu, 5 Feb - Mon, 9 Feb

6:00 a.m. - 11:53 a.m.

YUL

SAN

8h 53m1 stop

7:00 a.m. - 3:31 p.m.

SAN

YUL

5h 31mdirect

C$ 548Air Canada

Wed, 29 Apr - Sun, 3 May

2:40 p.m. - 8:49 p.m.

YUL

SAN

9h 09m1 stop

10:00 p.m. - 12:12 p.m.

SAN

YUL

11h 12m1 stop

C$ 551Delta

Wed, 21 Jan - Wed, 28 Jan

6:45 a.m. - 1:20 p.m.

YUL

SAN

9h 35m1 stop

1:05 p.m. - 12:42 a.m.

SAN

YUL

32h 37m2 stops

C$ 552WestJet

Wed, 29 Apr - Sun, 3 May

American Airlines flights from Montreal to San Diego

Our best American Airlines deals on Montreal to San Diego flight tickets

American Airlines

6 Feb

YUL7:30 a.m.Montreal Pierre Elliott Trudeau Intl

18h 28m

1 stop

SAN10:58 p.m.San Diego

13 Feb

SAN3:23 p.m.San Diego

20h 46m

1 stop

YUL3:09 p.m.Montreal Pierre Elliott Trudeau Intl

C$ 519

Find similar

American Airlines

5 Feb

YUL12:59 p.m.Montreal Pierre Elliott Trudeau Intl

12h 59m

1 stop

SAN10:58 p.m.San Diego

9 Feb

SAN6:20 a.m.San Diego

13h 39m

2 stops

YUL10:59 p.m.Montreal Pierre Elliott Trudeau Intl

C$ 526

Find similar

American Airlines

5 Feb

YUL12:59 p.m.Montreal Pierre Elliott Trudeau Intl

12h 59m

1 stop

SAN10:58 p.m.San Diego

9 Feb

SAN9:24 a.m.San Diego

10h 35m

1 stop

YUL10:59 p.m.Montreal Pierre Elliott Trudeau Intl

C$ 545

Find similar

United Airlines flights from Montreal to San Diego

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

United Airlines

5 May

YUL6:30 a.m.Montreal Pierre Elliott Trudeau Intl

7h 55m

1 stop

SAN11:25 a.m.San Diego

10 May

SAN8:45 p.m.San Diego

13h 25m

2 stops

YUL1:10 p.m.Montreal Pierre Elliott Trudeau Intl

C$ 560

Find similar

United Airlines

6 Feb

YUL7:00 a.m.Montreal Pierre Elliott Trudeau Intl

15h 54m

2 stops

SAN7:54 p.m.San Diego

13 Feb

SAN3:40 p.m.San Diego

18h 48m

2 stops

YUL1:28 p.m.Montreal Pierre Elliott Trudeau Intl

C$ 573

Find similar

United Airlines

14 Jan

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

11h 13m

2 stops

SAN5:28 p.m.San Diego

2 May

SAN8:54 a.m.San Diego

9h 07m

2 stops

YUL9:01 p.m.Montreal Pierre Elliott Trudeau Intl

C$ 609

Find similar

Fly from

Fly to

Route

Depart

Return

Price

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Fri 6/2

7:30 a.m.-10:58 p.m.

1 stop18h 28m

San Diego

Fri 13/2

3:23 p.m.-3:09 p.m.

1 stop20h 46m

C$ 519

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Tue 3/2

7:30 p.m.-11:47 a.m.

1 stop19h 17m

San Diego

Fri 6/2

2:52 p.m.-3:57 p.m.

2 stops22h 05m

C$ 520

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Thu 5/2

12:59 p.m.-10:58 p.m.

1 stop12h 59m

San Diego

Mon 9/2

6:20 a.m.-10:59 p.m.

2 stops13h 39m

C$ 526

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Thu 5/2

7:30 a.m.-7:12 p.m.

2 stops14h 42m

San Diego

Mon 9/2

6:20 a.m.-10:59 p.m.

2 stops13h 39m

C$ 533

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Wed 6/5

7:30 a.m.-4:05 p.m.

1 stop11h 35m

San Diego

Mon 11/5

7:00 a.m.-3:31 p.m.

Nonstop5h 31m

C$ 534

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Sun 3/5

6:00 a.m.-2:04 p.m.

1 stop11h 04m

San Diego

Mon 11/5

9:40 p.m.-11:47 a.m.

1 stop11h 07m

C$ 540

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Thu 5/2

12:59 p.m.-10:58 p.m.

1 stop12h 59m

San Diego

Mon 9/2

9:24 a.m.-10:59 p.m.

1 stop10h 35m

C$ 545

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Wed 29/4

6:00 a.m.-11:53 a.m.

1 stop8h 53m

San Diego

Sun 3/5

7:00 a.m.-3:31 p.m.

Nonstop5h 31m

C$ 548

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Wed 21/1

2:40 p.m.-8:49 p.m.

1 stop9h 09m

San Diego

Wed 28/1

10:00 p.m.-12:12 p.m.

1 stop11h 12m

C$ 551

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Wed 29/4

6:45 a.m.-1:20 p.m.

1 stop9h 35m

San Diego

Sun 3/5

1:05 p.m.-12:42 a.m.

2 stops32h 37m

C$ 552

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 Diego

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 cheapest month to fly to San Diego?

In general, January is the cheapest month to fly from Montreal to San Diego. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around C$ 434. If you are unable to visit San Diego during the month of January, then departing from Montreal during the month March is also very affordable. Most momondo users find prices during this month for around C$ 452.

What is the cheapest day to depart on your flight to San Diego?

The cheapest day to depart on your flight to San Diego is on a Monday when prices can be found for as low as C$ 454. This is often the case because there is less demand to fly during this day of the week. Be sure to avoid booking your departure on a Friday as prices are generally higher than usual. According to our data, the average ticket price to San Diego on Friday is C$ 549.

What is the cheapest time of day to depart on your flight to San Diego?

Flying to San Diego from Montreal in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as C$ 520 when looking at flights departing in the afternoon. Flights to San Diego are more costly in the morning, with an average ticket price of C$ 799. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Montreal to San Diego flight route?

Fly from Montreal Pierre Elliott Trudeau Intl to San Diego for the best Montreal - San Diego flight prices

How far in advance should I book a flight to San Diego?

You are more likely to see cheaper flights to San Diego from Montreal when booking weeks ahead of your departure date. In general, you can expect to find flights to San Diego for around C$ 507 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Diego from Montreal for as low as C$ 427 on momondo.

What cabin class options are available on Montreal to San Diego flights?

There is only 1 cabin class available to choose from on Montreal to San Diego flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

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

No. A direct flight is the cheapest option for a flight between Montreal to San Diego.

How have Montreal to San Diego flight prices changed over time?

As of December 2025, prices for Montreal to San Diego flights are approximately 11% more expensive when compared to flights at the same time last year.

When to book flights from Montreal to San Diego

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

Estimated round-trip price

Cheap Montreal to San Diego (YMQ to SAN) flight deals and tips

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

Best price found	C$ 541
Fastest flight time	5h 54m
Direct flights	Mon and Sat
Airports in San Diego	1 airport

The best flight deal from Montreal to San Diego found on momondo in the last 72 hours is C$ 541

The fastest flight from Montreal to San Diego takes 5h 54m

Direct flights go from Montreal to San Diego on Monday and Saturday. There are no airlines offering direct flights.

There is 1 airport in San Diego. From Montreal there are direct flights to San Diego (SAN).

Search flight deals

How far is Montreal to San Diego by plane?
A flight from Montreal to San Diego will travel around 3961.3 km. Typically, this will take 5h 54m by plane in normal conditions.
When did momondo last update prices for flights from Montreal to San Diego Airport?
Prices for flights from Montreal to San Diego Airport are updated daily.
How many operators does momondo search for flights from Montreal to San Diego Airport?
There are 6 operators available for flights from Montreal to San Diego Airport as of December 2025.
How old do you have to be to fly from Montreal to San Diego 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 Diego Airport.
What documentation or ID do you need to fly to San Diego Airport?
The travel and health documents you'll need for your trip to San Diego 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 Diego Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Montreal to San Diego?
momondo data reveals that the most frequently booked plane model on the route from Montreal to San Diego is Airbus A220-300, representing 57.50% of all bookings. The subsequent popular models are Boeing 737 MAX 8 at 30.00%, Airbus A319 at 5.00%, and Embraer 175 at 2.50%.
What is the most popular airline from Montreal to San Diego?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Montreal to San Diego is Air Canada (58% of total bookings). The next most popular airlines are United Airlines (26%), Delta (9%), and American Airlines (4%).

Best airlines flying from Montreal to San Diego

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

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom C$ 271	Free Cancellation	Rating 7.2 11,050 reviews	Search American Airlines flights
Delta	PriceFrom C$ 298	Free Cancellation	Rating 7.9 8,014 reviews	Search Delta flights
Porter Airlines	PriceFrom C$ 343	Free Cancellation	Rating 8.0 399 reviews	Search Porter Airlines flights
Air Canada	PriceFrom C$ 352	Free Cancellation	Rating 7.1 10,551 reviews	Search Air Canada flights
WestJet	PriceFrom C$ 359	Free Cancellation	Rating 7.2 3,216 reviews	Search WestJet flights
United Airlines	PriceFrom C$ 360	Free Cancellation	Rating 7.4 9,106 reviews	Search United Airlines flights

El Cajon

Borrego Springs

Coronado

Chula Vista

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Montreal to San Diego for you.

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

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

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

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 Diego.

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

Of course. momondo tracks the price of Montreal to San Diego flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Cheap flights from Montreal to San Diego from C$ 279

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Montreal to San Diego departing on 4/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names, great deals

Big names, great deals

Filter for what you want

Filter for what you want

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Trusted and free

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American Airlines flights from Montreal to San Diego

Our best American Airlines deals on Montreal to San Diego flight tickets

United Airlines flights from Montreal to San Diego

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

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Use the filters below to find and compare flights from Montreal to San Diego that are best for you.

See travel insights to San Diego from

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

What is the cheapest month to fly to San Diego?

What is the cheapest day to depart on your flight to San Diego?

What is the cheapest time of day to depart on your flight to San Diego?

What is the cheapest Montreal to San Diego flight route?

Fly from Montreal Pierre Elliott Trudeau Intl to San Diego for the best Montreal - San Diego flight prices

How far in advance should I book a flight to San Diego?

What cabin class options are available on Montreal to San Diego flights?

There is only 1 cabin class available to choose from on Montreal to San Diego flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

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

No. A direct flight is the cheapest option for a flight between Montreal to San Diego.

How have Montreal to San Diego flight prices changed over time?

As of December 2025, prices for Montreal to San Diego flights are approximately 11% more expensive when compared to flights at the same time last year.

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

Delta and Air Canada are the most popular carriers operating from Montreal to San Diego

Which airlines fly to San Diego?

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

Philadelphia (PHL) was the most common stop: 38% of momondo users choosing one-stop flights on this route connected there.

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

Flights via Toronto (YYZ) offer the lowest average round-trip price of C$ 415.

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

Flights connecting via Denver (DEN) have the shortest average one-way travel time: 8h 05m.

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

Atlanta (ATL) has the shortest average layover time for this route: 1h 00m.

When to book flights from Montreal to San Diego

Cheap Montreal to San Diego (YMQ to SAN) flight deals and tips

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

Best price found

Fastest flight time

Direct flights

Airports in San Diego

How far is Montreal to San Diego by plane?

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

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

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

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

What is the most popular plane model from Montreal to San Diego?

What is the most popular airline from Montreal to San Diego?

Best airlines flying from Montreal to San Diego

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

Travelling to a place near San Diego?

Why use momondo?

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

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

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

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

An easier way to manage your San Diego trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing California