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Cheap flights from Montreal to San Diego from C$ 229

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 10/9. 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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Find the cheapest flights from Montreal to San Diego (YMQ-SAN)

Cheap round-trip flights

Logo
6:45 a.m. - 5:56 p.m.YUL-SAN
14h 11m2 stops
Logo
6:15 a.m. - 12:37 a.m.SAN-YUL
15h 22m2 stops
C$ 398
Find Deal
Wed, 3 Sep - Sat, 6 Sep
Logo
6:45 a.m. - 10:22 p.m.YUL-SAN
18h 37m2 stops
Logo
6:25 a.m. - 12:37 a.m.SAN-YUL
15h 12m2 stops
C$ 417
Find Deal
Wed, 3 Sep - Fri, 5 Sep
American Airlines Logo
5:29 p.m. - 9:44 a.m.YUL-SAN
19h 15m1 stop
American Airlines Logo
10:54 p.m. - 3:20 p.m.SAN-YUL
13h 26m1 stop
C$ 430American Airlines
Find Deal
Wed, 27 Aug - Mon, 1 Sep
United Airlines Logo
9:45 a.m. - 7:46 p.m.YUL-SAN
13h 01m2 stops
United Airlines Logo
10:30 p.m. - 10:40 a.m.SAN-YUL
9h 10m1 stop
C$ 432United Airlines
Find Deal
Tue, 26 Aug - Sat, 30 Aug
American Airlines Logo
7:29 a.m. - 3:25 p.m.YUL-SAN
10h 56m2 stops
American Airlines Logo
10:54 p.m. - 3:20 p.m.SAN-YUL
13h 26m1 stop
C$ 443American Airlines
Find Deal
Wed, 27 Aug - Mon, 1 Sep
United Airlines Logo
6:15 a.m. - 3:50 p.m.YUL-SAN
12h 35m1 stop
United Airlines Logo
8:11 p.m. - 8:16 a.m.SAN-YUL
9h 05m1 stop
C$ 456United Airlines
Find Deal
Wed, 27 Aug - Wed, 10 Sep
Air Canada Logo
8:25 a.m. - 3:51 p.m.YUL-SAN
10h 26m1 stop
Air Canada Logo
8:10 a.m. - 4:40 p.m.SAN-YUL
5h 30mdirect
C$ 467Air Canada
Find Deal
Tue, 21 Oct - Sun, 26 Oct
Air Canada Logo
5:00 a.m. - 11:31 a.m.YUL-SAN
9h 31m1 stop
Air Canada Logo
12:25 p.m. - 12:40 a.m.SAN-YUL
9h 15m1 stop
C$ 493Air Canada
Find Deal
Thu, 4 Sep - Sat, 13 Sep
Delta Logo
12:36 p.m. - 9:20 p.m.YUL-SAN
11h 44m1 stop
Delta Logo
10:20 p.m. - 12:02 p.m.SAN-YUL
10h 42m1 stop
C$ 516Delta
Find Deal
Fri, 10 Oct - Sat, 18 Oct
Delta Logo
6:00 a.m. - 2:32 p.m.YUL-SAN
11h 32m1 stop
Delta Logo
9:48 p.m. - 11:31 a.m.SAN-YUL
10h 43m1 stop
C$ 518Delta
Find Deal
Sat, 11 Oct - Mon, 20 Oct

American Airlines flights from Montreal to San Diego

Our best American Airlines deals on Montreal to San Diego flight tickets
American Airlines
27 Aug
YUL5:29 p.m.Montreal Pierre Elliott Trudeau Intl
19h 15m
1 stop
SAN9:44 a.m.San Diego
1 Sep
SAN10:54 p.m.San Diego
13h 26m
1 stop
YUL3:20 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 430
Find similar
American Airlines
27 Aug
YUL7:29 a.m.Montreal Pierre Elliott Trudeau Intl
10h 56m
2 stops
SAN3:25 p.m.San Diego
1 Sep
SAN10:54 p.m.San Diego
13h 26m
1 stop
YUL3:20 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 443
Find similar
American Airlines
3 Sep
YUL7:50 a.m.Montreal Pierre Elliott Trudeau Intl
16h 53m
1 stop
SAN9:43 p.m.San Diego
10 Sep
SAN5:15 p.m.San Diego
18h 34m
1 stop
YUL2:49 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 469
Find similar

Air Canada flights from Montreal to San Diego

Our best Air Canada deals on Montreal to San Diego flight tickets
Air Canada
21 Oct
YUL8:25 a.m.Montreal Pierre Elliott Trudeau Intl
10h 26m
1 stop
SAN3:51 p.m.San Diego
26 Oct
SAN8:10 a.m.San Diego
5h 30m
YUL4:40 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 467
Find similar
Air Canada
4 Sep
YUL5:00 a.m.Montreal Pierre Elliott Trudeau Intl
9h 31m
1 stop
SAN11:31 a.m.San Diego
13 Sep
SAN12:25 p.m.San Diego
9h 15m
1 stop
YUL12:40 a.m.Montreal Pierre Elliott Trudeau Intl
C$ 493
Find similar
Air Canada
15 Oct
YUL7:30 a.m.Montreal Pierre Elliott Trudeau Intl
11h 21m
1 stop
SAN3:51 p.m.San Diego
22 Oct
SAN8:10 a.m.San Diego
5h 30m
YUL4:40 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 504
Find similar

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 14 August 2025.
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

Wed 3/9

6:45 a.m.-5:56 p.m.

2 stops14h 11m

San Diego

Sat 6/9

6:15 a.m.-12:37 a.m.

2 stops15h 22m

C$ 398

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Wed 3/9

6:45 a.m.-10:22 p.m.

2 stops18h 37m

San Diego

Fri 5/9

6:25 a.m.-12:37 a.m.

2 stops15h 12m

C$ 417

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Wed 27/8

5:29 p.m.-9:44 a.m.

1 stop19h 15m

San Diego

Mon 1/9

10:54 p.m.-3:20 p.m.

1 stop13h 26m

C$ 430

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Tue 26/8

9:45 a.m.-7:46 p.m.

2 stops13h 01m

San Diego

Sat 30/8

10:30 p.m.-10:40 a.m.

1 stop9h 10m

C$ 432

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Wed 27/8

7:29 a.m.-3:25 p.m.

2 stops10h 56m

San Diego

Mon 1/9

10:54 p.m.-3:20 p.m.

1 stop13h 26m

C$ 443

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Wed 27/8

6:15 a.m.-3:50 p.m.

1 stop12h 35m

San Diego

Wed 10/9

8:11 p.m.-8:16 a.m.

1 stop9h 05m

C$ 456

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Tue 21/10

8:25 a.m.-3:51 p.m.

1 stop10h 26m

San Diego

Sun 26/10

8:10 a.m.-4:40 p.m.

Nonstop5h 30m

C$ 467

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Thu 4/9

5:00 a.m.-11:31 a.m.

1 stop9h 31m

San Diego

Sat 13/9

12:25 p.m.-12:40 a.m.

1 stop9h 15m

C$ 493

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Fri 10/10

12:36 p.m.-9:20 p.m.

1 stop11h 44m

San Diego

Sat 18/10

10:20 p.m.-12:02 p.m.

1 stop10h 42m

C$ 516

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Sat 11/10

6:00 a.m.-2:32 p.m.

1 stop11h 32m

San Diego

Mon 20/10

9:48 p.m.-11:31 a.m.

1 stop10h 43m

C$ 518

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 cheapest month to fly to San Diego?

In general, April 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$ 453. If you are unable to visit San Diego during the month of April, then departing from Montreal during the month May is also very affordable. Most momondo users find prices during this month for around C$ 460.

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 Tuesday when prices can be found for as low as C$ 467. 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 Monday as prices are generally higher than usual. According to our data, the average ticket price to San Diego on Monday is C$ 613.

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$ 512 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$ 798. 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$ 536 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$ 445 on momondo.

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

There are 1 cabin classes 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 August 2025, prices for Montreal to San Diego flights are approximately 18% 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$ 229

Fastest flight time

8h 35m

Direct flights

Every day

Airports in San Diego

1 airport
The best one-way flight to San Diego from Montreal in the past 72 hours is C$ 229. The best round-trip flight deal from Montreal to San Diego found on momondo in the last 72 hours is C$ 398.
The fastest flight from Montreal to San Diego takes 8h 35m
Direct flights go from Montreal to San Diego every day.
There is 1 airport near San Diego: 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 8h 45m 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
American AirlinesPriceFrom C$ 298Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom C$ 325Free CancellationRating
8.0
7,980 reviews
Search Delta flights
Porter AirlinesPriceFrom C$ 348Free CancellationRating
8.0
332 reviews
Search Porter Airlines flights
Air CanadaPriceFrom C$ 354Free CancellationRating
7.1
9,949 reviews
Search Air Canada flights
WestJetPriceFrom C$ 359Free CancellationRating
7.2
3,013 reviews
Search WestJet flights
United AirlinesPriceFrom C$ 360Free CancellationRating
7.4
8,916 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$ 262 round-trip, up to an average price of C$ 378. Our users have rated United Airlines at 7.4/10.

  • Air Canada Flights From Montreal to San Diego

    Air Canada (7.1/10 from 9,949 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$ 440, with deals from around C$ 257 rare but found on momondo. Referenced prices are for round-trip Montreal to San Diego flight searches in the last 72 hours.

Travelling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
Coronado
Chula Vista
El Cajon

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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