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

Flights via Chicago (ORD) offer the lowest average round-trip price of C$ 428.

How many flights depart from Montreal to San Diego on average per week?

12 flights are operational weekly from Montreal to San Diego as of June 2026. The most popular departure day for this route is Mon, with 17% of flights per week taking off on this day.

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.

How many flights depart from Montreal to San Diego on average per day?

1 flights are operational daily from Montreal to San Diego as of June 2026. The most popular departure time for this route is 6:00p.m., with 100% of flights per day taking off in the evening.

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

Chicago (ORD) has the shortest average layover time for this route: 1h 01m.

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 according to our data. Air Canada is the first choice among our users, with 41% 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.

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

Philadelphia (PHL) was the most common stop: 42% 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 4 operators available for flights from Montreal to San Diego Airport as of June 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$ 321 Cheap Flights from Montreal to San Diego in 2026

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

Prices are currently low for flights on this route. Typical prices usually range from C$ 746 to C$ 582. The lowest price recently found on this route was C$ 560.

Discover deals from 900+ travel sites with momondo.

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.

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$ 560WestJet

Tue, 28 Jul - Sat, 1 Aug

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$ 564WestJet

Tue, 28 Jul - Sat, 1 Aug

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$ 566Air Canada

Thu, 8 Oct - Sat, 10 Oct

12:45 p.m. - 11:03 p.m.

YUL

SAN

13h 18m

1 stop

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

SAN

YUL

10h 04m

1 stop

C$ 567Delta

Thu, 15 Oct - Fri, 23 Oct

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

YUL

SAN

9h 55m

1 stop

3:30 p.m. - 12:25 a.m.

SAN

YUL

29h 55m

2 stops

C$ 568WestJet

Sun, 11 Oct - Thu, 15 Oct

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

YUL

SAN

5h 54mdirect

5:00 p.m. - 6:15 a.m.

SAN

YUL

10h 15m

1 stop

C$ 570Air Canada

Fri, 21 Aug - Sat, 29 Aug

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

YUL

SAN

9h 55m

1 stop

3:30 p.m. - 12:25 a.m.

SAN

YUL

29h 55m

2 stops

C$ 573WestJet

Tue, 28 Jul - Sat, 1 Aug

9:45 a.m. - 5:26 p.m.

YUL

SAN

10h 41m

2 stops

7:41 p.m. - 8:16 a.m.

SAN

YUL

9h 35m

1 stop

C$ 574United Airlines

Wed, 7 Oct - Wed, 14 Oct

12:44 p.m. - 9:16 p.m.

YUL

SAN

11h 32m

1 stop

8:00 a.m. - 11:52 p.m.

SAN

YUL

12h 52m

1 stop

C$ 581Delta

Thu, 9 Jul - Tue, 21 Jul

6:00 a.m. - 2:12 p.m.

YUL

SAN

11h 12m

1 stop

8:00 a.m. - 11:52 p.m.

SAN

YUL

12h 52m

1 stop

C$ 582Delta

Fri, 3 Jul - Thu, 9 Jul

Save money when you book flights with momondo

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Early arrival? Instantly customize your results

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Delta flights from Montreal to San Diego

Our best Delta deals on Montreal to San Diego flight tickets

Delta

15 Oct

YUL12:45 p.m.Montreal Pierre Elliott Trudeau Intl

13h 18m

1 stop

SAN11:03 p.m.San Diego

23 Oct

SAN10:40 p.m.San Diego

10h 04m

1 stop

YUL11:44 a.m.Montreal Pierre Elliott Trudeau Intl

C$ 567

Delta

9 Jul

YUL12:44 p.m.Montreal Pierre Elliott Trudeau Intl

11h 32m

1 stop

SAN9:16 p.m.San Diego

21 Jul

SAN8:00 a.m.San Diego

12h 52m

1 stop

YUL11:52 p.m.Montreal Pierre Elliott Trudeau Intl

C$ 581

Delta

3 Jul

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

11h 12m

1 stop

SAN2:12 p.m.San Diego

9 Jul

SAN8:00 a.m.San Diego

12h 52m

1 stop

YUL11:52 p.m.Montreal Pierre Elliott Trudeau Intl

C$ 582

Air Canada flights from Montreal to San Diego

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

Air Canada

8 Oct

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

5h 51m

SAN8:36 p.m.San Diego

13 Oct

SAN7:00 a.m.San Diego

5h 27m

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

C$ 566

Air Canada

21 Aug

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

5h 54m

SAN8:39 p.m.San Diego

29 Aug

SAN5:00 p.m.San Diego

10h 15m

1 stop

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

C$ 570

Air Canada

11 Aug

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

11h 40m

1 stop

SAN4:10 p.m.San Diego

14 Aug

SAN7:00 a.m.San Diego

5h 33m

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

C$ 587

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Tue 28/7

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

1 stop9h 55m

San Diego

Sat 1/8

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

1 stop12h 35m

C$ 560

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Tue 28/7

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

1 stop9h 55m

San Diego

Sat 1/8

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

1 stop12h 35m

C$ 564

Quickest round-trip

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Thu 8/10

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

Nonstop5h 51m

San Diego

Sat 10/10

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

Nonstop5h 27m

C$ 566

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Thu 15/10

12:45 p.m.-11:03 p.m.

1 stop13h 18m

San Diego

Fri 23/10

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

1 stop10h 04m

C$ 567

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Sun 11/10

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

1 stop9h 55m

San Diego

Thu 15/10

3:30 p.m.-12:25 a.m.

2 stops29h 55m

C$ 568

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Fri 21/8

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

Nonstop5h 54m

San Diego

Sat 29/8

5:00 p.m.-6:15 a.m.

1 stop10h 15m

C$ 570

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Tue 28/7

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

1 stop9h 55m

San Diego

Sat 1/8

3:30 p.m.-12:25 a.m.

2 stops29h 55m

C$ 573

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Wed 7/10

9:45 a.m.-5:26 p.m.

2 stops10h 41m

San Diego

Wed 14/10

7:41 p.m.-8:16 a.m.

1 stop9h 35m

C$ 574

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Thu 9/7

12:44 p.m.-9:16 p.m.

1 stop11h 32m

San Diego

Tue 21/7

8:00 a.m.-11:52 p.m.

1 stop12h 52m

C$ 581

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Fri 3/7

6:00 a.m.-2:12 p.m.

1 stop11h 12m

San Diego

Thu 9/7

8:00 a.m.-11:52 p.m.

1 stop12h 52m

C$ 582

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

Other information

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, July 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$ 177. If you are unable to visit San Diego during the month of July, then departing from Montreal during the month June is also very affordable. Most momondo users find prices during this month for around C$ 197.

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 Sunday when prices can be found for as low as C$ 527. 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$ 680.

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 from Montreal 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$ 590 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$ 462 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 June 2026, prices for Montreal to San Diego flights are approximately 42% 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$ 316
Fastest flight time	5h 51m
Direct flights	Mon, Tue, Wed, Fri, Sat and Sun
Airports in San Diego	1 airport

The best one-way flight to San Diego from Montreal in the past 72 hours is C$ 316. The best round-trip flight deal from Montreal to San Diego found on momondo in the last 72 hours is C$ 577.

The fastest flight from Montreal to San Diego takes 5h 51m

Direct flights go from Montreal to San Diego on Monday, Tuesday, Wednesday, Friday, Saturday and Sunday. The only airline offering direct flights is Air Canada.

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

Search flight deals

Frequently asked questions about flying from Montreal to San Diego

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 51m 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 4 operators available for flights from Montreal to San Diego Airport as of June 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 Airbus A220-300, representing 85.29% of all bookings. The subsequent popular models are Airbus A220 at 7.65%, Airbus A319 at 2.35%, and Boeing 737 MAX 8 at 1.76%.
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 (52% of total bookings). The next most popular airlines are United Airlines (26%), Delta (15%), and American Airlines (8%).

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$ 275	Free Cancellation	Rating 7.9 8,400 reviews	Search Delta flights
American Airlines	PriceFrom C$ 275	Free Cancellation	Rating 7.1 11,645 reviews	Search American Airlines flights
Air Canada	PriceFrom C$ 364	Free Cancellation	Rating 7.1 11,169 reviews	Search Air Canada flights
United Airlines	PriceFrom C$ 398	Free Cancellation	Rating 7.4 9,812 reviews	Search United Airlines flights

United Airlines Flights From Montreal to San Diego
United Airlines is one of the most popular airlines flying from Montreal to San Diego, operating 6 flights/week on average for this route. A good United Airlines flight deal for Montreal to San Diego starts from C$ 398 round-trip, up to an average price of C$ 547. Our users have rated United Airlines at 7.4/10.
Air Canada Flights From Montreal to San Diego
Air Canada (7.1/10 from 11,169 reviews) operates around 6 flights from Montreal to San Diego in any given week. The average Air Canada airfare for this route is around C$ 623, with deals from around C$ 364 rare but found on momondo. Referenced prices are for round-trip Montreal to San Diego flight searches in the last 72 hours.

El Cajon

Coronado

Chula Vista

Borrego Springs

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.

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.

Start using Trips

Find my bookings

Get notified when prices go down

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

1 adult

Sun 12/7

Sun 19/7

Email me momondo's favourite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States

Nearby airports

Airlines

Cabin classes

Other United States destinations

Other flights from Montreal

Complete your trip

Feeling lucky

Cheap flights from Montreal to San Diego from C$ 325

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 8/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from Montreal to San Diego

Cheap round-trip flights

Cheap one-way flights

Cheap last-minute flights

Cheap direct flights

Big names, great deals

Big names, great deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Delta flights from Montreal to San Diego

Our best Delta deals on Montreal to San Diego flight tickets

Air Canada flights from Montreal to San Diego

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

momondo Fare Finder

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 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 from Montreal 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?

How many flights depart from Montreal to San Diego on average per day?

How many flights depart from Montreal to San Diego on average per week?

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

Frequently asked questions about flying 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

United Airlines Flights From Montreal to San Diego

Air Canada Flights From Montreal to San Diego

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

Airports servicing California

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.

Popular Cities in the United States

Popular flights according to clicks in the last 7 days on momondo

Fly to other destinations from Montreal

According to popular flight searches on momondo this year

Complete your trip to San Diego

Explore popular destinations other users love

According to popular flight searches on momondo this year