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Cheap flights from Montreal to San Diego from $139

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 10/24. 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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0 bags

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Find the cheapest flights from Montreal to San Diego

Cheap round-trip flights

Logo
6:45 am - 9:20 pmYUL-SAN
17h 35m2 stops
Logo
8:00 am - 12:37 amSAN-YUL
13h 37m2 stops
$326
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Wed, Oct 8 - Wed, Oct 15
Logo
6:45 am - 11:04 pmYUL-SAN
19h 19m2 stops
Logo
12:35 pm - 1:32 pmSAN-YUL
21h 57m1 stop
$334
Find Deal
Fri, Oct 24 - Mon, Nov 3
Air Canada Logo
9:00 am - 5:24 pmYUL-SAN
11h 24m1 stop
Air Canada Logo
8:10 am - 4:39 pmSAN-YUL
5h 29mnonstop
$370Air Canada
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Wed, Jan 14 - Sat, May 2
Delta Logo
12:45 pm - 10:00 pmYUL-SAN
12h 15m1 stop
Delta Logo
10:30 pm - 12:20 pmSAN-YUL
10h 50m1 stop
$376Delta
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Wed, Feb 11 - Sun, Feb 22
Delta Logo
6:00 am - 2:11 pmYUL-SAN
11h 11m1 stop
Delta Logo
10:23 pm - 11:59 amSAN-YUL
10h 36m1 stop
$377Delta
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Thu, Dec 18 - Sat, Dec 20
United Airlines Logo
3:41 pm - 11:41 pmYUL-SAN
11h 00m2 stops
United Airlines Logo
10:00 pm - 4:16 pmSAN-YUL
15h 16m1 stop
$383United Airlines
Find Deal
Wed, Oct 15 - Sat, Nov 1
United Airlines Logo
6:30 pm - 12:15 amYUL-SAN
8h 45m1 stop
United Airlines Logo
5:01 pm - 10:40 amSAN-YUL
14h 39m1 stop
$384United Airlines
Find Deal
Thu, Oct 16 - Mon, Oct 20
American Airlines Logo
12:30 pm - 7:29 pmYUL-SAN
9h 59m1 stop
American Airlines Logo
6:48 pm - 2:49 pmSAN-YUL
17h 01m1 stop
$385American Airlines
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Thu, Oct 16 - Sun, Oct 19
American Airlines Logo
3:44 pm - 11:40 pmYUL-SAN
10h 56m1 stop
American Airlines Logo
6:16 am - 4:39 pmSAN-YUL
7h 23m1 stop
$389American Airlines
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Fri, Oct 10 - Sat, Oct 18
Air Canada Logo
6:00 am - 5:24 pmYUL-SAN
14h 24m2 stops
Air Canada Logo
6:10 pm - 11:23 amSAN-YUL
14h 13m2 stops
$423Air Canada
Find Deal
Tue, Feb 17 - Mon, Feb 23

Delta flights from Montreal to San Diego

Our best Delta deals on Montreal to San Diego flight tickets
Delta
Feb 11
YUL12:45 pmMontreal Pierre Elliott Trudeau Intl
12h 15m
1 stop
SAN10:00 pmSan Diego
Feb 22
SAN10:30 pmSan Diego
10h 50m
1 stop
YUL12:20 pmMontreal Pierre Elliott Trudeau Intl
$376
Find similar
Delta
Dec 18
YUL6:00 amMontreal Pierre Elliott Trudeau Intl
11h 11m
1 stop
SAN2:11 pmSan Diego
Dec 20
SAN10:23 pmSan Diego
10h 36m
1 stop
YUL11:59 amMontreal Pierre Elliott Trudeau Intl
$377
Find similar
Delta
Oct 12
YUL6:00 amMontreal Pierre Elliott Trudeau Intl
11h 32m
1 stop
SAN2:32 pmSan Diego
Nov 3
SAN10:20 pmSan Diego
10h 42m
1 stop
YUL12:02 pmMontreal Pierre Elliott Trudeau Intl
$387
Find similar

United Airlines flights from Montreal to San Diego

Our best United Airlines deals on Montreal to San Diego flight tickets
United Airlines
Oct 15
YUL3:41 pmMontreal Pierre Elliott Trudeau Intl
11h 00m
2 stops
SAN11:41 pmSan Diego
Nov 1
SAN10:00 pmSan Diego
15h 16m
1 stop
YUL4:16 pmMontreal Pierre Elliott Trudeau Intl
$383
Find similar
United Airlines
Oct 16
YUL6:30 pmMontreal Pierre Elliott Trudeau Intl
8h 45m
1 stop
SAN12:15 amSan Diego
Oct 20
SAN5:01 pmSan Diego
14h 39m
1 stop
YUL10:40 amMontreal Pierre Elliott Trudeau Intl
$384
Find similar
United Airlines
Oct 11
YUL6:30 pmMontreal Pierre Elliott Trudeau Intl
16h 26m
1 stop
SAN7:56 amSan Diego
Oct 18
SAN6:53 amSan Diego
11h 36m
2 stops
YUL9:29 pmMontreal Pierre Elliott Trudeau Intl
$388
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 September 16, 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 10/8

6:45 am-9:20 pm

2 stops17h 35m

San Diego

Wed 10/15

8:00 am-12:37 am

2 stops13h 37m

$326

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Fri 10/24

6:45 am-11:04 pm

2 stops19h 19m

San Diego

Mon 11/3

12:35 pm-1:32 pm

1 stop21h 57m

$334

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Wed 1/14

9:00 am-5:24 pm

1 stop11h 24m

San Diego

Sat 5/2

8:10 am-4:39 pm

Nonstop5h 29m

$370

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Wed 2/11

12:45 pm-10:00 pm

1 stop12h 15m

San Diego

Sun 2/22

10:30 pm-12:20 pm

1 stop10h 50m

$376

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Thu 12/18

6:00 am-2:11 pm

1 stop11h 11m

San Diego

Sat 12/20

10:23 pm-11:59 am

1 stop10h 36m

$377

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Wed 10/15

3:41 pm-11:41 pm

2 stops11h 00m

San Diego

Sat 11/1

10:00 pm-4:16 pm

1 stop15h 16m

$383

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Thu 10/16

6:30 pm-12:15 am

1 stop8h 45m

San Diego

Mon 10/20

5:01 pm-10:40 am

1 stop14h 39m

$384

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Thu 10/16

12:30 pm-7:29 pm

1 stop9h 59m

San Diego

Sun 10/19

6:48 pm-2:49 pm

1 stop17h 01m

$385

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Fri 10/10

3:44 pm-11:40 pm

1 stop10h 56m

San Diego

Sat 10/18

6:16 am-4:39 pm

1 stop7h 23m

$389

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Tue 2/17

6:00 am-5:24 pm

2 stops14h 24m

San Diego

Mon 2/23

6:10 pm-11:23 am

2 stops14h 13m

$423

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 January, 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 $245. If your travel schedule is flexible, try to avoid departing on a Thursday because tickets tend to average around $505. 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 $383 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 $310 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 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

Fastest flight time

5h 50m

Direct flights

Every day

Airports in San Diego

1 airport
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)
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  • How far is Montreal to San Diego by plane?

    San Diego is 2461.4 mi away from Montreal. 5h 50m 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 $233Free CancellationRating
7.1
10,000 reviews
Search Air Canada flights
United AirlinesPriceFrom $263Free CancellationRating
7.4
8,929 reviews
Search United Airlines flights
DeltaPriceFrom $293Free CancellationRating
7.9
7,954 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 $388. United Airlines is rated 7.4/10 by our users.

  • Air Canada Flights From Montreal to San Diego

    Across 10,000 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 $233 to $405. 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
La Mesa
National City
Poway
Imperial Beach
San Ysidro
Borrego Springs
Lemon Grove
Alpine
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.

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