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

Delta and United Airlines are the most popular carriers operating from Montreal to San Diego

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$ 413.

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 45% of people opting to fly with this airline when travelling to San Diego. Keep in mind that there are 5 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 has the shortest connection time from Montreal to San Diego?

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

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

Philadelphia (PHL) was the most common stop: 40% of momondo users choosing one-stop flights on this route connected there.

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 5 operators available for flights from Montreal to San Diego Airport as of March 2026.

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$ 222 Cheap Flights from Montreal to San Diego in 2026

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Find the cheapest flights from Montreal to San Diego

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:10 a.m. - 3:33 p.m.

YUL

SAN

12h 23m

1 stop

9:45 p.m. - 2:40 p.m.

SAN

YUL

13h 55m

1 stop

C$ 430United Airlines

Sat, 18 Apr - Fri, 24 Apr

5:45 p.m. - 8:43 p.m.

YUL

SAN

5h 58mdirect

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

SAN

YUL

5h 31mdirect

C$ 431Air Canada

Tue, 26 May - Wed, 3 Jun

5:45 p.m. - 8:39 p.m.

YUL

SAN

5h 54mdirect

7:00 a.m. - 3:33 p.m.

SAN

YUL

5h 33mdirect

C$ 432Air Canada

Mon, 3 Aug - Tue, 4 Aug

11:23 a.m. - 8:05 p.m.

YUL

SAN

11h 42m

2 stops

8:37 p.m. - 1:09 p.m.

SAN

YUL

13h 32m

2 stops

C$ 435United Airlines

Wed, 22 Apr - Mon, 27 Apr

12:42 p.m. - 11:09 p.m.

YUL

SAN

13h 27m

1 stop

9:55 p.m. - 11:37 a.m.

SAN

YUL

10h 42m

1 stop

C$ 436Delta

Wed, 1 Apr - Mon, 6 Apr

3:45 p.m. - 8:15 a.m.

YUL

SAN

19h 30m

1 stop

7:20 p.m. - 11:44 a.m.

SAN

YUL

13h 24m

2 stops

C$ 443American Airlines

Sun, 19 Apr - Fri, 24 Apr

3:45 p.m. - 8:15 a.m.

YUL

SAN

19h 30m

1 stop

10:40 p.m. - 11:44 a.m.

SAN

YUL

10h 04m

1 stop

C$ 449American Airlines

Mon, 13 Apr - Fri, 17 Apr

11:23 a.m. - 8:12 p.m.

YUL

SAN

11h 49m

2 stops

8:37 p.m. - 1:09 p.m.

SAN

YUL

13h 32m

2 stops

C$ 450United Airlines

Sat, 18 Apr - Fri, 24 Apr

7:00 a.m. - 12:18 p.m.

YUL

SAN

8h 18m

1 stop

7:00 a.m. - 3:33 p.m.

SAN

YUL

5h 33mdirect

C$ 451Air Canada

Tue, 16 Jun - Sun, 5 Jul

7:45 a.m. - 10:49 p.m.

YUL

SAN

18h 04m

1 stop

1:03 p.m. - 11:44 a.m.

SAN

YUL

19h 41m

1 stop

C$ 453American Airlines

Fri, 17 Apr - Fri, 24 Apr

United Airlines flights from Montreal to San Diego

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

United Airlines

18 Apr

YUL6:10 a.m.Montreal Pierre Elliott Trudeau Intl

12h 23m

1 stop

SAN3:33 p.m.San Diego

24 Apr

SAN9:45 p.m.San Diego

13h 55m

1 stop

YUL2:40 p.m.Montreal Pierre Elliott Trudeau Intl

C$ 430

United Airlines

22 Apr

YUL11:23 a.m.Montreal Pierre Elliott Trudeau Intl

11h 42m

2 stops

SAN8:05 p.m.San Diego

27 Apr

SAN8:37 p.m.San Diego

13h 32m

2 stops

YUL1:09 p.m.Montreal Pierre Elliott Trudeau Intl

C$ 435

United Airlines

1 Apr

YUL9:45 a.m.Montreal Pierre Elliott Trudeau Intl

14h 37m

2 stops

SAN9:22 p.m.San Diego

6 Apr

SAN5:00 p.m.San Diego

17h 09m

2 stops

YUL1:09 p.m.Montreal Pierre Elliott Trudeau Intl

C$ 436

Air Canada flights from Montreal to San Diego

Our best Air Canada deals on Montreal to San Diego flight tickets

Air Canada

26 May

YUL5:45 p.m.Montreal Pierre Elliott Trudeau Intl

5h 58m

SAN8:43 p.m.San Diego

3 Jun

SAN7:00 a.m.San Diego

5h 31m

YUL3:31 p.m.Montreal Pierre Elliott Trudeau Intl

C$ 431

Air Canada

3 Aug

YUL5:45 p.m.Montreal Pierre Elliott Trudeau Intl

5h 54m

SAN8:39 p.m.San Diego

9 Aug

SAN7:00 a.m.San Diego

5h 33m

YUL3:33 p.m.Montreal Pierre Elliott Trudeau Intl

C$ 432

Air Canada

16 Jun

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

8h 18m

1 stop

SAN12:18 p.m.San Diego

5 Jul

SAN7:00 a.m.San Diego

5h 33m

YUL3:33 p.m.Montreal Pierre Elliott Trudeau Intl

C$ 451

Fly from

Fly to

Route

Depart

Return

Price

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Sat 18/4

6:10 a.m.-3:33 p.m.

1 stop12h 23m

San Diego

Fri 24/4

9:45 p.m.-2:40 p.m.

1 stop13h 55m

C$ 430

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Tue 26/5

5:45 p.m.-8:43 p.m.

Nonstop5h 58m

San Diego

Wed 3/6

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

Nonstop5h 31m

C$ 431

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Mon 3/8

5:45 p.m.-8:39 p.m.

Nonstop5h 54m

San Diego

Tue 4/8

7:00 a.m.-3:33 p.m.

Nonstop5h 33m

C$ 432

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Wed 22/4

11:23 a.m.-8:05 p.m.

2 stops11h 42m

San Diego

Mon 27/4

8:37 p.m.-1:09 p.m.

2 stops13h 32m

C$ 435

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Wed 1/4

12:42 p.m.-11:09 p.m.

1 stop13h 27m

San Diego

Mon 6/4

9:55 p.m.-11:37 a.m.

1 stop10h 42m

C$ 436

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Sun 19/4

3:45 p.m.-8:15 a.m.

1 stop19h 30m

San Diego

Fri 24/4

7:20 p.m.-11:44 a.m.

2 stops13h 24m

C$ 443

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Mon 13/4

3:45 p.m.-8:15 a.m.

1 stop19h 30m

San Diego

Fri 17/4

10:40 p.m.-11:44 a.m.

1 stop10h 04m

C$ 449

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Sat 18/4

11:23 a.m.-8:12 p.m.

2 stops11h 49m

San Diego

Fri 24/4

8:37 p.m.-1:09 p.m.

2 stops13h 32m

C$ 450

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Tue 16/6

7:00 a.m.-12:18 p.m.

1 stop8h 18m

San Diego

Sun 5/7

7:00 a.m.-3:33 p.m.

Nonstop5h 33m

C$ 451

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Fri 17/4

7:45 a.m.-10:49 p.m.

1 stop18h 04m

San Diego

Fri 24/4

1:03 p.m.-11:44 a.m.

1 stop19h 41m

C$ 453

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 typical price of a round-trip flight between Montreal and San Diego?

What is the cheapest month to fly to San Diego?

In general, June 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$ 451. If you are unable to visit San Diego during the month of June, then departing from Montreal during the month May is also very affordable. Most momondo users find prices during this month for around C$ 457.

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$ 415. 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$ 570.

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$ 517 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$ 424 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 March 2026, prices for Montreal to San Diego flights are approximately 40% cheaper 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$ 491
Fastest flight time	5h 54m
Direct flights	Mon, Tue, Wed, Fri, Sat and Sun
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$ 491

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

Direct flights go from Montreal to San Diego on Monday, Tuesday, Wednesday, Friday, Saturday and Sunday. 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 5 operators available for flights from Montreal to San Diego Airport as of March 2026.
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 Boeing 737 MAX 8, representing 59.42% of all bookings. The subsequent popular models are Airbus A220-300 at 27.54%, Airbus A319 at 8.70%, and Embraer 175 at 1.45%.
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 (60% of total bookings). The next most popular airlines are United Airlines (24%), Delta (11%), and American Airlines (5%).

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
Delta	PriceFrom C$ 269	Free Cancellation	Rating 7.9 8,245 reviews	Search Delta flights
American Airlines	PriceFrom C$ 269	Free Cancellation	Rating 7.1 11,379 reviews	Search American Airlines flights
Air Canada	PriceFrom C$ 326	Free Cancellation	Rating 7.1 10,775 reviews	Search Air Canada flights
United Airlines	PriceFrom C$ 337	Free Cancellation	Rating 7.4 9,382 reviews	Search United Airlines flights
WestJet	PriceFrom C$ 357	Free Cancellation	Rating 7.2 3,281 reviews	Search WestJet flights

El Cajon

Coronado

Borrego Springs

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$ 239

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 26/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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

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

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

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

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

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

What is the cheapest airline that flies 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?

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

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

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

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

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?

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

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Fly your favourite airline to San Diego

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to San Diego

List of cabin classes available on flights landing in San Diego. Availability may vary depending on flight origin and airline.

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