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Cheap flights from Montreal to San Diego from C$ 256

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 4/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult

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Find the cheapest flights from Montreal to San Diego

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
3:45 p.m. - 9:44 p.m.
YUL
-
SAN
8h 59m
1 stop
American Airlines Logo
10:35 p.m. - 3:04 p.m.
SAN
-
YUL
13h 29m
1 stop
C$ 527American Airlines
Thu, 19 Feb - Tue, 24 Feb
American Airlines Logo
7:30 a.m. - 7:24 p.m.
YUL
-
SAN
14h 54m
1 stop
American Airlines Logo
10:35 p.m. - 3:04 p.m.
SAN
-
YUL
13h 29m
1 stop
C$ 528American Airlines
Thu, 19 Feb - Tue, 24 Feb
American Airlines Logo
12:59 p.m. - 9:59 p.m.
YUL
-
SAN
12h 00m
1 stop
American Airlines Logo
10:35 p.m. - 3:04 p.m.
SAN
-
YUL
13h 29m
1 stop
C$ 541American Airlines
Wed, 18 Feb - Mon, 23 Feb
Air Canada Logo
6:00 a.m. - 11:53 a.m.
YUL
-
SAN
8h 53m
1 stop
Air Canada Logo
1:10 p.m. - 12:31 a.m.
SAN
-
YUL
8h 21m
1 stop
C$ 548Air Canada
Wed, 22 Apr - Mon, 27 Apr
Air Canada Logo
5:45 p.m. - 8:43 p.m.
YUL
-
SAN
5h 58mdirect
Air Canada Logo
7:00 a.m. - 3:31 p.m.
SAN
-
YUL
5h 31mdirect
C$ 565Air Canada
Tue, 19 May - Fri, 22 May
Air Canada Logo
6:00 a.m. - 11:40 a.m.
YUL
-
SAN
8h 40m
1 stop
Air Canada Logo
7:00 a.m. - 3:33 p.m.
SAN
-
YUL
5h 33mdirect
C$ 567Air Canada
Sun, 21 Jun - Fri, 26 Jun
Multiple Airlines Logo
8:00 a.m. - 11:46 a.m.
YUL
-
SAN
30h 46m
1 stop
Multiple Airlines Logo
2:08 p.m. - 12:38 a.m.
SAN
-
YUL
31h 30m
2 stops
C$ 568Multiple Airlines
Wed, 25 Mar - Tue, 31 Mar
Delta Logo
4:45 p.m. - 11:02 p.m.
YUL
-
SAN
9h 17m
1 stop
Delta Logo
10:10 p.m. - 11:59 a.m.
SAN
-
YUL
10h 49m
1 stop
C$ 571Delta
Fri, 6 Mar - Fri, 13 Mar
Delta Logo
12:50 p.m. - 10:59 p.m.
YUL
-
SAN
13h 09m
1 stop
Delta Logo
10:10 p.m. - 11:59 a.m.
SAN
-
YUL
10h 49m
1 stop
C$ 572Delta
Wed, 25 Mar - Tue, 31 Mar
Multiple Airlines Logo
6:45 a.m. - 5:52 p.m.
YUL
-
SAN
14h 07m
2 stops
Multiple Airlines Logo
1:00 p.m. - 4:22 p.m.
SAN
-
YUL
24h 22m
1 stop
C$ 574Multiple Airlines
Thu, 19 Feb - Mon, 23 Feb

American Airlines flights from Montreal to San Diego

Our best American Airlines deals on Montreal to San Diego flight tickets
American Airlines
19 Feb
YUL7:30 a.m.Montreal Pierre Elliott Trudeau Intl
14h 54m
1 stop
SAN7:24 p.m.San Diego
24 Feb
SAN10:35 p.m.San Diego
13h 29m
1 stop
YUL3:04 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 528
American Airlines
22 Feb
YUL7:12 a.m.Montreal Pierre Elliott Trudeau Intl
14h 57m
1 stop
SAN7:09 p.m.San Diego
1 Mar
SAN6:30 a.m.San Diego
13h 26m
1 stop
YUL10:56 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 577
American Airlines
19 Feb
YUL12:59 p.m.Montreal Pierre Elliott Trudeau Intl
12h 00m
1 stop
SAN9:59 p.m.San Diego
24 Feb
SAN10:35 p.m.San Diego
13h 29m
1 stop
YUL3:04 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 578

Delta flights from Montreal to San Diego

Our best Delta deals on Montreal to San Diego flight tickets
Delta
17 Apr
YUL12:46 p.m.Montreal Pierre Elliott Trudeau Intl
11h 01m
1 stop
SAN8:47 p.m.San Diego
26 Apr
SAN9:45 p.m.San Diego
10h 56m
1 stop
YUL11:41 a.m.Montreal Pierre Elliott Trudeau Intl
C$ 532
Delta
16 Apr
YUL12:46 p.m.Montreal Pierre Elliott Trudeau Intl
8h 53m
1 stop
SAN6:39 p.m.San Diego
26 Apr
SAN9:45 p.m.San Diego
10h 56m
1 stop
YUL11:41 a.m.Montreal Pierre Elliott Trudeau Intl
C$ 534
Delta
8 Mar
YUL7:00 a.m.Montreal Pierre Elliott Trudeau Intl
12h 31m
1 stop
SAN4:31 p.m.San Diego
15 Mar
SAN10:30 p.m.San Diego
10h 07m
1 stop
YUL11:37 a.m.Montreal Pierre Elliott Trudeau Intl
C$ 553

momondo Fare Finder

 
Customize your flight search to find flights from Montreal to San Diego that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 96,600 searches. Data last updated 21 January 2026.
Use the filters below to find and compare flights from Montreal to San Diego that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Thu 19/2

3:45 p.m.-9:44 p.m.

1 stop8h 59m

San Diego

Tue 24/2

10:35 p.m.-3:04 p.m.

1 stop13h 29m

C$ 527

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Thu 19/2

7:30 a.m.-7:24 p.m.

1 stop14h 54m

San Diego

Tue 24/2

10:35 p.m.-3:04 p.m.

1 stop13h 29m

C$ 528

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Wed 18/2

12:59 p.m.-9:59 p.m.

1 stop12h 00m

San Diego

Mon 23/2

10:35 p.m.-3:04 p.m.

1 stop13h 29m

C$ 541

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Wed 22/4

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

1 stop8h 53m

San Diego

Mon 27/4

1:10 p.m.-12:31 a.m.

1 stop8h 21m

C$ 548

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Tue 19/5

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

Nonstop5h 58m

San Diego

Fri 22/5

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

Nonstop5h 31m

C$ 565

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Sun 21/6

6:00 a.m.-11:40 a.m.

1 stop8h 40m

San Diego

Fri 26/6

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

Nonstop5h 33m

C$ 567

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Wed 25/3

8:00 a.m.-11:46 a.m.

1 stop30h 46m

San Diego

Tue 31/3

2:08 p.m.-12:38 a.m.

2 stops31h 30m

C$ 568

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Fri 6/3

4:45 p.m.-11:02 p.m.

1 stop9h 17m

San Diego

Fri 13/3

10:10 p.m.-11:59 a.m.

1 stop10h 49m

C$ 571

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Wed 25/3

12:50 p.m.-10:59 p.m.

1 stop13h 09m

San Diego

Tue 31/3

10:10 p.m.-11:59 a.m.

1 stop10h 49m

C$ 572

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Thu 19/2

6:45 a.m.-5:52 p.m.

2 stops14h 07m

San Diego

Mon 23/2

1:00 p.m.-4:22 p.m.

1 stop24h 22m

C$ 574

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to San Diego from

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

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, 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$ 422. If you are unable to visit San Diego during the month of January, then departing from Montreal during the month June is also very affordable. Most momondo users find prices during this month for around C$ 440.

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$ 421. 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$ 551.

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$ 500 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$ 429 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?

You could potentially save up to 16% on your flight if you consider stops on a Montreal to San Diego flight.

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

As of January 2026, prices for Montreal to San Diego flights are approximately 28% 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$ 319

Fastest flight time

5h 54m

Direct flights

Mon, 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$ 319
The fastest flight from Montreal to San Diego takes 5h 54m
Direct flights go from Montreal to San Diego on Monday, 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?

  • 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?

  • 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
Airline
Rating
Free Cancellation
Price
WestJetPriceFrom C$ 271Free CancellationRating
7.2
3,247 reviews
Search WestJet flights
DeltaPriceFrom C$ 272Free CancellationRating
7.9
8,089 reviews
Search Delta flights
American AirlinesPriceFrom C$ 272Free CancellationRating
7.2
11,173 reviews
Search American Airlines flights
Air CanadaPriceFrom C$ 317Free CancellationRating
7.1
10,646 reviews
Search Air Canada flights
United AirlinesPriceFrom C$ 340Free CancellationRating
7.4
9,191 reviews
Search United Airlines flights
Porter AirlinesPriceFrom C$ 342Free CancellationRating
7.9
412 reviews
Search Porter Airlines flights

Travelling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
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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