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Cheap flights from Montreal to San Diego from C$ 191

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 24/10. 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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Cheap round-trip flights

Multiple Airlines Logo
6:45 a.m. - 9:20 p.m.YUL-SAN
17h 35m2 stops
Multiple Airlines Logo
8:00 a.m. - 12:37 a.m.SAN-YUL
13h 37m2 stops
C$ 448Multiple Airlines
Find Deal
Wed, 8 Oct - Wed, 15 Oct
Multiple Airlines Logo
7:00 a.m. - 11:04 p.m.YUL-SAN
19h 04m2 stops
Multiple Airlines Logo
12:35 p.m. - 1:32 p.m.SAN-YUL
21h 57m1 stop
C$ 480Multiple Airlines
Find Deal
Thu, 23 Oct - Mon, 3 Nov
Air Canada Logo
9:00 a.m. - 5:24 p.m.YUL-SAN
11h 24m1 stop
Air Canada Logo
8:10 a.m. - 4:39 p.m.SAN-YUL
5h 29mdirect
C$ 509Air Canada
Find Deal
Wed, 14 Jan - Sat, 2 May
United Airlines Logo
6:00 a.m. - 2:52 p.m.YUL-SAN
11h 52m2 stops
United Airlines Logo
6:30 p.m. - 3:02 p.m.SAN-YUL
17h 32m2 stops
C$ 517United Airlines
Find Deal
Wed, 11 Feb - Thu, 19 Feb
Delta Logo
6:00 a.m. - 2:11 p.m.YUL-SAN
11h 11m1 stop
Delta Logo
10:23 p.m. - 11:59 a.m.SAN-YUL
10h 36m1 stop
C$ 519Delta
Find Deal
Thu, 18 Dec - Mon, 29 Dec
Air Canada Logo
9:00 a.m. - 5:24 p.m.YUL-SAN
11h 24m1 stop
Air Canada Logo
8:10 a.m. - 4:39 p.m.SAN-YUL
5h 29mdirect
C$ 520Air Canada
Find Deal
Wed, 14 Jan - Sat, 2 May
United Airlines Logo
6:30 p.m. - 7:56 a.m.YUL-SAN
16h 26m1 stop
United Airlines Logo
4:07 p.m. - 10:40 a.m.SAN-YUL
15h 33m2 stops
C$ 525United Airlines
Find Deal
Wed, 15 Oct - Wed, 22 Oct
Delta Logo
12:45 p.m. - 11:11 p.m.YUL-SAN
13h 26m1 stop
Delta Logo
10:30 p.m. - 12:20 p.m.SAN-YUL
10h 50m1 stop
C$ 531Delta
Find Deal
Wed, 25 Feb - Fri, 27 Feb
American Airlines Logo
3:44 p.m. - 11:40 p.m.YUL-SAN
10h 56m1 stop
American Airlines Logo
3:01 p.m. - 11:40 a.m.SAN-YUL
17h 39m1 stop
C$ 535American Airlines
Find Deal
Fri, 10 Oct - Sat, 18 Oct
American Airlines Logo
7:29 a.m. - 7:24 p.m.YUL-SAN
14h 55m1 stop
American Airlines Logo
7:30 p.m. - 12:15 p.m.SAN-YUL
13h 45m2 stops
C$ 538American Airlines
Find Deal
Thu, 30 Oct - Thu, 6 Nov

Delta flights from Montreal to San Diego

Our best Delta deals on Montreal to San Diego flight tickets
Delta
18 Dec
YUL6:00 a.m.Montreal Pierre Elliott Trudeau Intl
11h 11m
1 stop
SAN2:11 p.m.San Diego
29 Dec
SAN10:23 p.m.San Diego
10h 36m
1 stop
YUL11:59 a.m.Montreal Pierre Elliott Trudeau Intl
C$ 519
Find similar
Delta
25 Feb
YUL12:45 p.m.Montreal Pierre Elliott Trudeau Intl
13h 26m
1 stop
SAN11:11 p.m.San Diego
27 Feb
SAN10:30 p.m.San Diego
10h 50m
1 stop
YUL12:20 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 531
Find similar
Delta
12 Oct
YUL6:00 a.m.Montreal Pierre Elliott Trudeau Intl
11h 32m
1 stop
SAN2:32 p.m.San Diego
5 Nov
SAN10:20 p.m.San Diego
10h 42m
1 stop
YUL12:02 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 532
Find similar

United Airlines flights from Montreal to San Diego

Our best United Airlines deals on Montreal to San Diego flight tickets
United Airlines
11 Feb
YUL6:00 a.m.Montreal Pierre Elliott Trudeau Intl
11h 52m
2 stops
SAN2:52 p.m.San Diego
19 Feb
SAN6:30 p.m.San Diego
17h 32m
2 stops
YUL3:02 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 517
Find similar
United Airlines
15 Oct
YUL6:30 p.m.Montreal Pierre Elliott Trudeau Intl
16h 26m
1 stop
SAN7:56 a.m.San Diego
22 Oct
SAN4:07 p.m.San Diego
15h 33m
2 stops
YUL10:40 a.m.Montreal Pierre Elliott Trudeau Intl
C$ 525
Find similar
United Airlines
15 Oct
YUL3:41 p.m.Montreal Pierre Elliott Trudeau Intl
11h 00m
2 stops
SAN11:41 p.m.San Diego
5 Nov
SAN10:00 p.m.San Diego
14h 16m
1 stop
YUL3:16 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 527
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 17 September 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 8/10

6:45 a.m.-9:20 p.m.

2 stops17h 35m

San Diego

Wed 15/10

8:00 a.m.-12:37 a.m.

2 stops13h 37m

C$ 448

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Thu 23/10

7:00 a.m.-11:04 p.m.

2 stops19h 04m

San Diego

Mon 3/11

12:35 p.m.-1:32 p.m.

1 stop21h 57m

C$ 480

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Wed 14/1

9:00 a.m.-5:24 p.m.

1 stop11h 24m

San Diego

Sat 2/5

8:10 a.m.-4:39 p.m.

Nonstop5h 29m

C$ 509

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Wed 11/2

6:00 a.m.-2:52 p.m.

2 stops11h 52m

San Diego

Thu 19/2

6:30 p.m.-3:02 p.m.

2 stops17h 32m

C$ 517

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Thu 18/12

6:00 a.m.-2:11 p.m.

1 stop11h 11m

San Diego

Mon 29/12

10:23 p.m.-11:59 a.m.

1 stop10h 36m

C$ 519

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Wed 14/1

9:00 a.m.-5:24 p.m.

1 stop11h 24m

San Diego

Sat 2/5

8:10 a.m.-4:39 p.m.

Nonstop5h 29m

C$ 520

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Wed 15/10

6:30 p.m.-7:56 a.m.

1 stop16h 26m

San Diego

Wed 22/10

4:07 p.m.-10:40 a.m.

2 stops15h 33m

C$ 525

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Wed 25/2

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

1 stop13h 26m

San Diego

Fri 27/2

10:30 p.m.-12:20 p.m.

1 stop10h 50m

C$ 531

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Fri 10/10

3:44 p.m.-11:40 p.m.

1 stop10h 56m

San Diego

Sat 18/10

3:01 p.m.-11:40 a.m.

1 stop17h 39m

C$ 535

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Thu 30/10

7:29 a.m.-7:24 p.m.

1 stop14h 55m

San Diego

Thu 6/11

7:30 p.m.-12:15 p.m.

2 stops13h 45m

C$ 538

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$ 446. If you are unable to visit San Diego during the month of January, then departing from Montreal during the month May is also very affordable. Most momondo users find prices during this month for around C$ 459.

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 Saturday as prices are generally higher than usual. According to our data, the average ticket price to San Diego on Saturday is C$ 631.

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$ 519 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$ 527 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$ 426 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 September 2025, prices for Montreal to San Diego flights are approximately 32% 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$ 691

Fastest flight time

5h 50m

Direct flights

Every day

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$ 691
The fastest flight from Montreal to San Diego takes 5h 50m
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 01m 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$ 298Free CancellationRating
7.9
7,961 reviews
Search Delta flights
Porter AirlinesPriceFrom C$ 348Free CancellationRating
7.9
365 reviews
Search Porter Airlines flights
Air CanadaPriceFrom C$ 354Free CancellationRating
7.1
10,000 reviews
Search Air Canada flights
WestJetPriceFrom C$ 359Free CancellationRating
7.2
3,095 reviews
Search WestJet flights
United AirlinesPriceFrom C$ 360Free CancellationRating
7.4
8,926 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$ 370. Our users have rated United Airlines at 7.4/10.

  • Air Canada Flights From Montreal to San Diego

    Air Canada (7.1/10 from 10,000 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$ 428, 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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