What is the cheapest airline that flies from Montreal Pierre Elliott Trudeau Intl to San Diego?

United Airlines, Delta, and WestJet are the most popular carriers operating from Montreal Pierre Elliott Trudeau Intl to San Diego

Which airlines fly to San Diego?

Air Canada, American Airlines and United Airlines are the top three most popular airlines that fly to San Diego from Montreal Pierre Elliott Trudeau Intl Airport according to our data. Air Canada is the first choice among our users, with 43% of people opting to fly with this airline when travelling to San Diego. Keep in mind that there are 4 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 connection time from Montreal Pierre Elliott Trudeau Intl Airport to San Diego?

San Francisco (SFO) has the shortest average layover time for this route: 1h 27m.

Which airport is the most popular layover for flights between Montreal Pierre Elliott Trudeau Intl Airport and San Diego?

Philadelphia (PHL) was the most common stop: 49% of momondo users choosing one-stop flights on this route connected there.

Which layover airport offers the lowest fares from Montreal Pierre Elliott Trudeau Intl Airport to San Diego?

Flights via Chicago (ORD) offer the lowest average round-trip price of C$ 418.

Which layover airport has the shortest travel time from Montreal Pierre Elliott Trudeau Intl Airport to San Diego?

Flights connecting via Chicago (ORD) have the shortest average one-way travel time: 8h 30m.

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

The travel and health documents required for your trip to San Diego Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at San Diego Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

C$ 221 Cheap Flights from Montreal Pierre Elliott Trudeau Intl Airport to San Diego in 2026

Q: What is the typical price of a round-trip flight between Montreal Pierre Elliott Trudeau Intl Airport and San Diego?

Prices are currently low for flights on this route. Typical prices usually range from C$ 668 to C$ 393. The lowest price recently found on this route was C$ 411.

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Find the cheapest flights from Montreal Pierre Elliott Trudeau Intl Airport to San Diego

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

5:45 p.m. - 8:36 p.m.

YUL

SAN

5h 51mdirect

7:00 a.m. - 3:27 p.m.

SAN

YUL

5h 27mdirect

C$ 411Air Canada

Mon, 21 Sep - Mon, 28 Sep

5:45 p.m. - 8:36 p.m.

YUL

SAN

5h 51mdirect

7:00 a.m. - 3:27 p.m.

SAN

YUL

5h 27mdirect

C$ 415Air Canada

Sun, 27 Sep - Sat, 3 Oct

7:15 a.m. - 2:10 p.m.

YUL

SAN

9h 55m

1 stop

3:30 p.m. - 7:05 a.m.

SAN

YUL

12h 35m

1 stop

C$ 430WestJet

Mon, 21 Sep - Mon, 28 Sep

7:15 a.m. - 2:10 p.m.

YUL

SAN

9h 55m

1 stop

3:30 p.m. - 7:05 a.m.

SAN

YUL

12h 35m

1 stop

C$ 441WestJet

Tue, 15 Sep - Tue, 22 Sep

7:15 a.m. - 2:10 p.m.

YUL

SAN

9h 55m

1 stop

3:30 p.m. - 4:45 p.m.

SAN

YUL

22h 15m

2 stops

C$ 443WestJet

Mon, 21 Sep - Mon, 28 Sep

5:45 p.m. - 8:36 p.m.

YUL

SAN

5h 51mdirect

7:00 a.m. - 3:27 p.m.

SAN

YUL

5h 27mdirect

C$ 444Air Canada

Mon, 21 Sep - Tue, 29 Sep

7:15 a.m. - 2:10 p.m.

YUL

SAN

9h 55m

1 stop

3:30 p.m. - 4:45 p.m.

SAN

YUL

22h 15m

2 stops

C$ 445WestJet

Tue, 15 Sep - Tue, 22 Sep

7:55 a.m. - 8:34 p.m.

YUL

SAN

15h 39m

1 stop

11:00 p.m. - 11:15 a.m.

SAN

YUL

9h 15m

1 stop

C$ 448American Airlines

Sat, 26 Sep - Sat, 3 Oct

7:15 a.m. - 2:10 p.m.

YUL

SAN

9h 55m

1 stop

3:30 p.m. - 4:30 p.m.

SAN

YUL

22h 00m

1 stop

C$ 449WestJet

Sun, 20 Sep - Mon, 28 Sep

9:45 a.m. - 7:55 p.m.

YUL

SAN

13h 10m

2 stops

4:08 p.m. - 10:40 a.m.

SAN

YUL

15h 32m

1 stop

C$ 451United Airlines

Fri, 4 Sep - Sat, 5 Sep

Air Canada flights from Montreal Pierre Elliott Trudeau Intl Airport to San Diego

Our best Air Canada deals on Montreal Pierre Elliott Trudeau Intl Airport to San Diego flight tickets

Air Canada

21 Sep

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

5h 51m

SAN8:36 p.m.San Diego

28 Sep

SAN7:00 a.m.San Diego

5h 27m

YUL3:27 p.m.Montreal Pierre Elliott Trudeau Intl

C$ 411

Air Canada

27 Sep

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

5h 51m

SAN8:36 p.m.San Diego

3 Oct

SAN7:00 a.m.San Diego

5h 27m

YUL3:27 p.m.Montreal Pierre Elliott Trudeau Intl

C$ 415

Air Canada

21 Sep

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

5h 51m

SAN8:36 p.m.San Diego

29 Sep

SAN7:00 a.m.San Diego

5h 27m

YUL3:27 p.m.Montreal Pierre Elliott Trudeau Intl

C$ 444

WestJet flights from Montreal Pierre Elliott Trudeau Intl Airport to San Diego

Our best WestJet deals on Montreal Pierre Elliott Trudeau Intl Airport to San Diego flight tickets

WestJet

21 Sep

YUL7:15 a.m.Montreal Pierre Elliott Trudeau Intl

9h 55m

1 stop

SAN2:10 p.m.San Diego

28 Sep

SAN3:30 p.m.San Diego

12h 35m

1 stop

YUL7:05 a.m.Montreal Pierre Elliott Trudeau Intl

C$ 430

WestJet

15 Sep

YUL7:15 a.m.Montreal Pierre Elliott Trudeau Intl

9h 55m

1 stop

SAN2:10 p.m.San Diego

22 Sep

SAN3:30 p.m.San Diego

12h 35m

1 stop

YUL7:05 a.m.Montreal Pierre Elliott Trudeau Intl

C$ 441

WestJet

21 Sep

YUL7:15 a.m.Montreal Pierre Elliott Trudeau Intl

9h 55m

1 stop

SAN2:10 p.m.San Diego

28 Sep

SAN3:30 p.m.San Diego

22h 15m

2 stops

YUL4:45 p.m.Montreal Pierre Elliott Trudeau Intl

C$ 443

momondo Fare Finder

Use the filters below to find and compare flights from Montreal Pierre Elliott Trudeau Intl Airport to San Diego that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Mon 21/9

5:45 p.m.-8:36 p.m.

Nonstop5h 51m

San Diego

Mon 28/9

7:00 a.m.-3:27 p.m.

Nonstop5h 27m

C$ 411

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Sun 27/9

5:45 p.m.-8:36 p.m.

Nonstop5h 51m

San Diego

Sat 3/10

7:00 a.m.-3:27 p.m.

Nonstop5h 27m

C$ 415

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Mon 21/9

7:15 a.m.-2:10 p.m.

1 stop9h 55m

San Diego

Mon 28/9

3:30 p.m.-7:05 a.m.

1 stop12h 35m

C$ 430

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Tue 15/9

7:15 a.m.-2:10 p.m.

1 stop9h 55m

San Diego

Tue 22/9

3:30 p.m.-7:05 a.m.

1 stop12h 35m

C$ 441

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Mon 21/9

7:15 a.m.-2:10 p.m.

1 stop9h 55m

San Diego

Mon 28/9

3:30 p.m.-4:45 p.m.

2 stops22h 15m

C$ 443

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Mon 21/9

5:45 p.m.-8:36 p.m.

Nonstop5h 51m

San Diego

Tue 29/9

7:00 a.m.-3:27 p.m.

Nonstop5h 27m

C$ 444

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Tue 15/9

7:15 a.m.-2:10 p.m.

1 stop9h 55m

San Diego

Tue 22/9

3:30 p.m.-4:45 p.m.

2 stops22h 15m

C$ 445

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Sat 26/9

7:55 a.m.-8:34 p.m.

1 stop15h 39m

San Diego

Sat 3/10

11:00 p.m.-11:15 a.m.

1 stop9h 15m

C$ 448

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Sun 20/9

7:15 a.m.-2:10 p.m.

1 stop9h 55m

San Diego

Mon 28/9

3:30 p.m.-4:30 p.m.

1 stop22h 00m

C$ 449

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Fri 4/9

9:45 a.m.-7:55 p.m.

2 stops13h 10m

San Diego

Sat 5/9

4:08 p.m.-10:40 a.m.

1 stop15h 32m

C$ 451

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 Pierre Elliott Trudeau Intl Airport 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 Pierre Elliott Trudeau Intl Airport and San Diego?

What is the cheapest month to fly to San Diego?

In general, December is the cheapest month to fly from Montreal Pierre Elliott Trudeau Intl Airport to San Diego. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around C$ 458. If you are unable to visit San Diego during the month of December, then departing from Montreal Pierre Elliott Trudeau Intl Airport during the month August is also very affordable. Most momondo users find prices during this month for around C$ 490.

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$ 511. 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 Wednesday as prices are generally higher than usual. According to our data, the average ticket price to San Diego on Wednesday is C$ 592.

What is the cheapest Montreal Pierre Elliott Trudeau Intl to San Diego flight route?

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

How far in advance should I book a flight from Montreal Pierre Elliott Trudeau Intl Airport to San Diego?

You are more likely to see cheaper flights to San Diego from Montreal Pierre Elliott Trudeau Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to San Diego for around C$ 554 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 Pierre Elliott Trudeau Intl Airport for as low as C$ 452 on momondo.

Can stopping save me money on Montreal Pierre Elliott Trudeau Intl Airport to San Diego flights?

No. A direct flight is the cheapest option for a flight between Montreal Pierre Elliott Trudeau Intl Airport to San Diego.

How have Montreal Pierre Elliott Trudeau Intl Airport to San Diego flight prices changed over time?

As of April 2026, prices for Montreal Pierre Elliott Trudeau Intl Airport to San Diego flights are approximately 18% cheaper when compared to flights at the same time last year.

When to book flights from Montreal Pierre Elliott Trudeau Intl Airport to San Diego

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

Estimated round-trip price

Cheap Montreal Pierre Elliott Trudeau Intl Airport to San Diego (YUL to SAN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Montreal Pierre Elliott Trudeau Intl Airport to San Diego

Best price found	C$ 551
Fastest flight time	5h 51m
Direct flights	Mon, Tue, Wed, Fri, Sat and Sun
Airports in San Diego	1 airport

The best flight deal from Montreal Pierre Elliott Trudeau Intl Airport to San Diego found on momondo in the last 72 hours is C$ 551

The fastest flight from Montreal Pierre Elliott Trudeau Intl Airport to San Diego takes 5h 51m

Direct flights go from Montreal Pierre Elliott Trudeau Intl Airport 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 Pierre Elliott Trudeau Intl Airport there are direct flights to San Diego (SAN).

Search flight deals

Frequently asked questions about flying from Montreal Pierre Elliott Trudeau Intl Airport to San Diego

How far is Montreal Pierre Elliott Trudeau Intl to San Diego by plane?
Montreal Pierre Elliott Trudeau Intl and San Diego are 3946.4 km apart from one another. Typically, this will take 5h 51m by plane in normal conditions.
When did momondo last update prices for flights from Montreal Pierre Elliott Trudeau Intl Airport to San Diego Airport?
Prices for flights from Montreal Pierre Elliott Trudeau Intl Airport to San Diego Airport are updated daily.
How many operators does momondo search for flights from Montreal Pierre Elliott Trudeau Intl Airport to San Diego Airport?
There are 4 operators available for flights from Montreal Pierre Elliott Trudeau Intl Airport to San Diego Airport as of April 2026.
How old do you have to be to fly from Montreal Pierre Elliott Trudeau Intl Airport to San Diego Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Montreal Pierre Elliott Trudeau Intl Airport to San Diego Airport.
What documentation or ID do you need to fly to San Diego Airport?
The travel and health documents required for your trip to San Diego Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at San Diego Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Montreal Pierre Elliott Trudeau Intl Airport to San Diego?
Based on momondo bookings for flights between Montreal Pierre Elliott Trudeau Intl Airport and San Diego, the leading plane model is Airbus A220-300, making up 61.03% of the total bookings. Other popular models include Boeing 737 MAX 8 with 30.88%, Airbus A319 with 3.68%, and Airbus A220 with 2.21%.
What is the most popular airline from Montreal Pierre Elliott Trudeau Intl Airport to San Diego?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Montreal Pierre Elliott Trudeau Intl Airport to San Diego is Air Canada (44% of total bookings). The next most popular airlines are American Airlines (26%), United Airlines (20%), and Delta (10%).

Best airlines flying from Montreal Pierre Elliott Trudeau Intl Airport to San Diego

Compare and see reviews for airlines that fly from Montreal Pierre Elliott Trudeau Intl Airport to San Diego with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom C$ 269	Free Cancellation	Rating 7.9 8,466 reviews	Search Delta flights
American Airlines	PriceFrom C$ 269	Free Cancellation	Rating 7.1 11,682 reviews	Search American Airlines flights
Air Canada	PriceFrom C$ 326	Free Cancellation	Rating 7.1 10,982 reviews	Search Air Canada flights
United Airlines	PriceFrom C$ 362	Free Cancellation	Rating 7.4 9,677 reviews	Search United Airlines flights

El Cajon

Borrego Springs

Chula Vista

Coronado

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Montreal to San Diego . Millions of users trust and use momondo every year so you are in good hands.

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

Yes. All flights to San Diego from Montreal on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo provides multiple filters to help you find the best flight to San Diego from Montreal. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

If you are simply researching potential flights to San Diego, momondo offers a useful price alert feature which will track prices for flights to San Diego from Montreal and alert you when they change.

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Cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to San Diego from C$ 281

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Use the filters below to find and compare flights from Montreal Pierre Elliott Trudeau Intl Airport to San Diego that are best for you.

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How to get the cheapest flight ticket from Montreal Pierre Elliott Trudeau Intl Airport to San Diego

What is the typical price of a round-trip flight between Montreal Pierre Elliott Trudeau Intl Airport 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 Pierre Elliott Trudeau Intl to San Diego flight route?

How far in advance should I book a flight from Montreal Pierre Elliott Trudeau Intl Airport to San Diego?

Can stopping save me money on Montreal Pierre Elliott Trudeau Intl Airport to San Diego flights?

How have Montreal Pierre Elliott Trudeau Intl Airport to San Diego flight prices changed over time?

What is the cheapest airline that flies from Montreal Pierre Elliott Trudeau Intl to San Diego?

Which airlines fly to San Diego?

Which airport is the most popular layover for flights between Montreal Pierre Elliott Trudeau Intl Airport and San Diego?

Which layover airport offers the lowest fares from Montreal Pierre Elliott Trudeau Intl Airport to San Diego?

Which layover airport has the shortest travel time from Montreal Pierre Elliott Trudeau Intl Airport to San Diego?

Which layover airport has the shortest connection time from Montreal Pierre Elliott Trudeau Intl Airport to San Diego?

When to book flights from Montreal Pierre Elliott Trudeau Intl Airport to San Diego

Cheap Montreal Pierre Elliott Trudeau Intl Airport to San Diego (YUL to SAN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Montreal Pierre Elliott Trudeau Intl Airport to San Diego

Best price found

Fastest flight time

Direct flights

Airports in San Diego

Frequently asked questions about flying from Montreal Pierre Elliott Trudeau Intl Airport to San Diego

Best airlines flying from Montreal Pierre Elliott Trudeau Intl Airport to San Diego

Compare and see reviews for airlines that fly from Montreal Pierre Elliott Trudeau Intl Airport 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

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