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Cheap flights from Montreal to San Diego from $203

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 12/8. 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

Enter your travel dates to find the best prices.
American Airlines Logo
7:12 am - 1:36 pmYUL-SAN
9h 24m1 stop
American Airlines Logo
3:23 pm - 3:05 pmSAN-YUL
20h 42m1 stop
$361American Airlines
Find Deal
jue., feb. 19 - jue., feb. 26
American Airlines Logo
2:25 pm - 11:59 pmYUL-SAN
12h 34m2 stops
American Airlines Logo
3:23 pm - 3:05 pmSAN-YUL
20h 42m1 stop
$371American Airlines
Find Deal
jue., feb. 19 - jue., feb. 26
Delta Logo
6:00 am - 2:08 pmYUL-SAN
11h 08m1 stop
Delta Logo
8:50 am - 11:34 pmSAN-YUL
11h 44m1 stop
$378Delta
Find Deal
sáb., abr. 18 - lun., may. 4
Delta Logo
7:00 am - 5:41 pmYUL-SAN
13h 41m1 stop
Delta Logo
8:50 am - 11:34 pmSAN-YUL
11h 44m1 stop
$379Delta
Find Deal
mié., ene. 14 - mar., abr. 28
Delta Logo
6:00 am - 2:12 pmYUL-SAN
11h 12m1 stop
Delta Logo
12:24 pm - 11:59 pmSAN-YUL
8h 35m1 stop
$380Delta
Find Deal
jue., dic. 4 - jue., dic. 11
American Airlines Logo
7:30 am - 9:44 pmYUL-SAN
17h 14m1 stop
American Airlines Logo
6:15 am - 10:42 pmSAN-YUL
13h 27m1 stop
$381American Airlines
Find Deal
sáb., dic. 6 - dom., dic. 14
United Airlines Logo
9:45 am - 5:10 pmYUL-SAN
10h 25m2 stops
United Airlines Logo
7:00 am - 9:01 pmSAN-YUL
11h 01m1 stop
$393United Airlines
Find Deal
sáb., abr. 18 - sáb., may. 2
Air Canada Logo
6:00 am - 11:53 amYUL-SAN
8h 53m1 stop
Air Canada Logo
8:10 am - 4:39 pmSAN-YUL
5h 29mnonstop
$394Air Canada
Find Deal
sáb., abr. 18 - mar., may. 5
United Airlines Logo
7:00 am - 6:46 pmYUL-SAN
14h 46m2 stops
United Airlines Logo
9:30 pm - 3:16 pmSAN-YUL
14h 46m1 stop
$395United Airlines
Find Deal
jue., dic. 18 - jue., dic. 25
Air Canada Logo
6:00 am - 11:53 amYUL-SAN
8h 53m1 stop
Air Canada Logo
12:40 pm - 11:22 pmSAN-YUL
7h 42m1 stop
$398Air Canada
Find Deal
lun., dic. 8 - jue., dic. 11

United Airlines flights from Montreal to San Diego

Our best United Airlines deals on Montreal to San Diego flight tickets
United Airlines
Apr 18
YUL9:45 amMontreal Pierre Elliott Trudeau Intl
10h 25m
2 stops
SAN5:10 pmSan Diego
May 2
SAN7:00 amSan Diego
11h 01m
1 stop
YUL9:01 pmMontreal Pierre Elliott Trudeau Intl
$393
Find similar
United Airlines
Dec 18
YUL7:00 amMontreal Pierre Elliott Trudeau Intl
14h 46m
2 stops
SAN6:46 pmSan Diego
Dec 25
SAN9:30 pmSan Diego
14h 46m
1 stop
YUL3:16 pmMontreal Pierre Elliott Trudeau Intl
$395
Find similar
United Airlines
Jan 13
YUL3:00 pmMontreal Pierre Elliott Trudeau Intl
9h 28m
1 stop
SAN9:28 pmSan Diego
Apr 29
SAN7:44 pmSan Diego
11h 27m
2 stops
YUL10:11 amMontreal Pierre Elliott Trudeau Intl
$402
Find similar

Air Canada flights from Montreal to San Diego

Our best Air Canada deals on Montreal to San Diego flight tickets
Air Canada
Apr 18
YUL6:00 amMontreal Pierre Elliott Trudeau Intl
8h 53m
1 stop
SAN11:53 amSan Diego
May 5
SAN8:10 amSan Diego
5h 29m
YUL4:39 pmMontreal Pierre Elliott Trudeau Intl
$394
Find similar
Air Canada
Dec 8
YUL6:00 amMontreal Pierre Elliott Trudeau Intl
8h 53m
1 stop
SAN11:53 amSan Diego
Dec 11
SAN12:40 pmSan Diego
7h 42m
1 stop
YUL11:22 pmMontreal Pierre Elliott Trudeau Intl
$398
Find similar
Air Canada
Apr 17
YUL6:00 amMontreal Pierre Elliott Trudeau Intl
8h 53m
1 stop
SAN11:53 amSan Diego
May 5
SAN8:10 amSan Diego
5h 29m
YUL4:39 pmMontreal Pierre Elliott Trudeau Intl
$428
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 noviembre 5, 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

jue. 2/19

7:12 am-1:36 pm

1 stop9h 24m

San Diego

jue. 2/26

3:23 pm-3:05 pm

1 stop20h 42m

$361

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

jue. 2/19

2:25 pm-11:59 pm

2 stops12h 34m

San Diego

jue. 2/26

3:23 pm-3:05 pm

1 stop20h 42m

$371

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

sáb. 4/18

6:00 am-2:08 pm

1 stop11h 08m

San Diego

lun. 5/4

8:50 am-11:34 pm

1 stop11h 44m

$378

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

mié. 1/14

7:00 am-5:41 pm

1 stop13h 41m

San Diego

mar. 4/28

8:50 am-11:34 pm

1 stop11h 44m

$379

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

jue. 12/4

6:00 am-2:12 pm

1 stop11h 12m

San Diego

jue. 12/11

12:24 pm-11:59 pm

1 stop8h 35m

$380

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

sáb. 12/6

7:30 am-9:44 pm

1 stop17h 14m

San Diego

dom. 12/14

6:15 am-10:42 pm

1 stop13h 27m

$381

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

sáb. 4/18

9:45 am-5:10 pm

2 stops10h 25m

San Diego

sáb. 5/2

7:00 am-9:01 pm

1 stop11h 01m

$393

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

sáb. 4/18

6:00 am-11:53 am

1 stop8h 53m

San Diego

mar. 5/5

8:10 am-4:39 pm

Nonstop5h 29m

$394

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

jue. 12/18

7:00 am-6:46 pm

2 stops14h 46m

San Diego

jue. 12/25

9:30 pm-3:16 pm

1 stop14h 46m

$395

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

lun. 12/8

6:00 am-11:53 am

1 stop8h 53m

San Diego

jue. 12/11

12:40 pm-11:22 pm

1 stop7h 42m

$398

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 March is also very affordable. Most momondo users find prices during this month for around $329.

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 Wednesday. Travelers who choose to depart for San Diego on a Wednesday will often find tickets for as low as $256. 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 $306. 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 $380 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 November 2025, prices for Montreal to San Diego flights are approximately 24% 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

Direct flights

None
There are no direct flights from Montreal to San Diego. There are no popular flight routes from Montreal to San Diego.
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 $233Free CancellationRating
7.1
10,404 reviews
Search Air Canada flights
United AirlinesPriceFrom $263Free CancellationRating
7.4
9,001 reviews
Search United Airlines flights
American AirlinesPriceFrom $271Free CancellationRating
7.2
11,039 reviews
Search American Airlines flights
DeltaPriceFrom $293Free CancellationRating
7.9
8,004 reviews
Search Delta flights

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
Imperial Beach
La Mesa
Poway
Borrego Springs
San Ysidro
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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