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Cheap flights from Montreal to San Diego from $176

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 10/1. 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 am - 9:24 pmYUL-SAN
17h 39m2 stops
Logo
8:00 am - 12:37 amSAN-YUL
13h 37m2 stops
$300
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Wed, Sep 10 - Wed, Sep 24
Logo
7:00 am - 11:34 pmYUL-SAN
19h 34m3 stops
Logo
6:15 am - 12:41 amSAN-YUL
15h 26m2 stops
$330
Find Deal
Wed, Sep 10 - Wed, Sep 17
Air Canada Logo
8:25 am - 3:51 pmYUL-SAN
10h 26m1 stop
Air Canada Logo
8:10 am - 4:40 pmSAN-YUL
5h 30mnonstop
$332Air Canada
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Thu, Oct 2 - Sat, Oct 11
Air Canada Logo
6:00 am - 11:31 amYUL-SAN
8h 31m1 stop
Air Canada Logo
4:40 pm - 8:24 amSAN-YUL
12h 44m2 stops
$337Air Canada
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Tue, Sep 30 - Tue, Oct 7
United Airlines Logo
6:00 am - 7:31 pmYUL-SAN
16h 31m1 stop
United Airlines Logo
10:30 pm - 4:10 pmSAN-YUL
14h 40m1 stop
$345United Airlines
Find Deal
Mon, Sep 29 - Mon, Oct 6
United Airlines Logo
6:30 pm - 10:15 amYUL-SAN
18h 45m1 stop
United Airlines Logo
8:11 pm - 8:16 amSAN-YUL
9h 05m1 stop
$355United Airlines
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Wed, Sep 3 - Wed, Sep 10
American Airlines Logo
3:45 pm - 11:25 amYUL-SAN
22h 40m2 stops
American Airlines Logo
11:00 pm - 1:35 pmSAN-YUL
11h 35m1 stop
$358American Airlines
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Fri, Jan 16 - Fri, Jan 30
American Airlines Logo
9:55 am - 9:39 pmYUL-SAN
14h 44m1 stop
American Airlines Logo
12:13 pm - 10:45 pmSAN-YUL
7h 32m1 stop
$360American Airlines
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Sun, Jan 11 - Wed, Jan 28
Delta Logo
12:36 pm - 9:20 pmYUL-SAN
11h 44m1 stop
Delta Logo
10:20 pm - 12:02 pmSAN-YUL
10h 42m1 stop
$375Delta
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Fri, Oct 10 - Sat, Oct 18
Delta Logo
12:36 pm - 9:20 pmYUL-SAN
11h 44m1 stop
Delta Logo
12:00 pm - 11:48 pmSAN-YUL
8h 48m1 stop
$376Delta
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Fri, Oct 10 - Fri, Oct 17

United Airlines flights from Montreal to San Diego

Our best United Airlines deals on Montreal to San Diego flight tickets
United Airlines
Sep 29
YUL6:00 amMontreal Pierre Elliott Trudeau Intl
16h 31m
1 stop
SAN7:31 pmSan Diego
Oct 6
SAN10:30 pmSan Diego
14h 40m
1 stop
YUL4:10 pmMontreal Pierre Elliott Trudeau Intl
$345
Find similar
United Airlines
Sep 3
YUL6:30 pmMontreal Pierre Elliott Trudeau Intl
18h 45m
1 stop
SAN10:15 amSan Diego
Sep 10
SAN8:11 pmSan Diego
9h 05m
1 stop
YUL8:16 amMontreal Pierre Elliott Trudeau Intl
$355
Find similar
United Airlines
Oct 20
YUL6:30 pmMontreal Pierre Elliott Trudeau Intl
8h 45m
1 stop
SAN12:15 amSan Diego
Nov 1
SAN6:45 amSan Diego
10h 03m
2 stops
YUL7:48 pmMontreal Pierre Elliott Trudeau Intl
$361
Find similar

American Airlines flights from Montreal to San Diego

Our best American Airlines deals on Montreal to San Diego flight tickets
American Airlines
Jan 16
YUL3:45 pmMontreal Pierre Elliott Trudeau Intl
22h 40m
2 stops
SAN11:25 amSan Diego
Jan 30
SAN11:00 pmSan Diego
11h 35m
1 stop
YUL1:35 pmMontreal Pierre Elliott Trudeau Intl
$358
Find similar
American Airlines
Jan 11
YUL9:55 amMontreal Pierre Elliott Trudeau Intl
14h 44m
1 stop
SAN9:39 pmSan Diego
Jan 28
SAN12:13 pmSan Diego
7h 32m
1 stop
YUL10:45 pmMontreal Pierre Elliott Trudeau Intl
$360
Find similar
American Airlines
Oct 11
YUL3:44 pmMontreal Pierre Elliott Trudeau Intl
10h 15m
1 stop
SAN10:59 pmSan Diego
Oct 19
SAN6:48 pmSan Diego
17h 01m
1 stop
YUL2:49 pmMontreal Pierre Elliott Trudeau Intl
$367
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 832,500 searches. Data last updated August 18, 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 9/10

6:45 am-9:24 pm

2 stops17h 39m

San Diego

Wed 9/24

8:00 am-12:37 am

2 stops13h 37m

$300

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Wed 9/10

7:00 am-11:34 pm

3 stops19h 34m

San Diego

Wed 9/17

6:15 am-12:41 am

2 stops15h 26m

$330

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Thu 10/2

8:25 am-3:51 pm

1 stop10h 26m

San Diego

Sat 10/11

8:10 am-4:40 pm

Nonstop5h 30m

$332

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Tue 9/30

6:00 am-11:31 am

1 stop8h 31m

San Diego

Tue 10/7

4:40 pm-8:24 am

2 stops12h 44m

$337

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Mon 9/29

6:00 am-7:31 pm

1 stop16h 31m

San Diego

Mon 10/6

10:30 pm-4:10 pm

1 stop14h 40m

$345

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Wed 9/3

6:30 pm-10:15 am

1 stop18h 45m

San Diego

Wed 9/10

8:11 pm-8:16 am

1 stop9h 05m

$355

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Fri 1/16

3:45 pm-11:25 am

2 stops22h 40m

San Diego

Fri 1/30

11:00 pm-1:35 pm

1 stop11h 35m

$358

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Sun 1/11

9:55 am-9:39 pm

1 stop14h 44m

San Diego

Wed 1/28

12:13 pm-10:45 pm

1 stop7h 32m

$360

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Fri 10/10

12:36 pm-9:20 pm

1 stop11h 44m

San Diego

Sat 10/18

10:20 pm-12:02 pm

1 stop10h 42m

$375

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Fri 10/10

12:36 pm-9:20 pm

1 stop11h 44m

San Diego

Fri 10/17

12:00 pm-11:48 pm

1 stop8h 48m

$376

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?

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 $334.

What is the cheapest day to depart on your flight to San Diego?

The cheapest day to depart from Montreal to San Diego is on a Friday. Travelers who choose to depart for San Diego on a Friday will often find tickets for as low as $224. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $481. These prices are subject to change though, so be sure to set up a Price Alert for flights to San Diego.

What is the cheapest time of day to depart on your flight to San Diego?

The cheapest time of day to fly to San Diego is in the afternoon when flights can be purchased for as low as $288. Flights in the morning are often more expensive with an average ticket price of $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 $389 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 $323 on momondo.

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

There are 3 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

$176

Fastest flight time

5h 50m

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 $176. The best round-trip flight deal from Montreal to San Diego found on momondo in the last 72 hours is $300.
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?

    San Diego is 2461.4 mi away from Montreal. 8h 31m is a normal flight duration for this route.

  • 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?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, 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
Air CanadaPriceFrom $235Free CancellationRating
7.1
9,992 reviews
Search Air Canada flights
United AirlinesPriceFrom $263Free CancellationRating
7.4
8,925 reviews
Search United Airlines flights
American AirlinesPriceFrom $271Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $293Free CancellationRating
8.0
7,981 reviews
Search Delta flights

  • United Airlines Flights From Montreal to San Diego

    The lowest priced United Airlines flight from Montreal to San Diego from the last 72 hours was $263. Generally, United Airlines has 6 flights on this route every week with an average price of $389. United Airlines is rated 7.4/10 by our users.

  • Air Canada Flights From Montreal to San Diego

    Across 9,992 Air Canada reviews on momondo, the average score is 7.1/10. Air Canada flies from Montreal to San Diego about 6 times each week, with ticket deals ranging from $235 to $400. Price data is based on momondo searches in the last 72 hours.

Traveling 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
Julian
National City
La Mesa
Imperial Beach
Poway
San Ysidro
Borrego Springs
Alpine
Lemon Grove
Santee

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?

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?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to San Diego from Montreal.

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

Yes. momondo can track prices for Montreal to San Diego flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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.
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