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Cheap flights from Montreal to San Diego from C$ 257

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 25/3. 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

Cheap round-trip flights

Enter your travel dates to find the best prices.
WestJet Logo
7:15 a.m. - 2:10 p.m.
YUL
-
SAN
9h 55m
1 stop
WestJet Logo
3:30 p.m. - 11:45 p.m.
SAN
-
YUL
29h 15m
1 stop
C$ 452WestJet
Sat, 9 May - Sat, 16 May
American Airlines Logo
12:30 p.m. - 11:33 p.m.
YUL
-
SAN
14h 03m
1 stop
American Airlines Logo
3:12 p.m. - 11:44 a.m.
SAN
-
YUL
17h 32m
1 stop
C$ 485American Airlines
Wed, 22 Apr - Mon, 27 Apr
American Airlines Logo
12:30 p.m. - 11:33 p.m.
YUL
-
SAN
14h 03m
1 stop
American Airlines Logo
3:12 p.m. - 11:44 a.m.
SAN
-
YUL
17h 32m
1 stop
C$ 486American Airlines
Wed, 22 Apr - Mon, 27 Apr
Air Canada Logo
5:45 p.m. - 8:43 p.m.
YUL
-
SAN
5h 58mdirect
Air Canada Logo
7:00 a.m. - 3:31 p.m.
SAN
-
YUL
5h 31mdirect
C$ 492Air Canada
Thu, 21 May - Tue, 26 May
WestJet Logo
5:30 p.m. - 2:10 p.m.
YUL
-
SAN
23h 40m
1 stop
WestJet Logo
3:30 p.m. - 6:25 p.m.
SAN
-
YUL
23h 55m
2 stops
C$ 507WestJet
Sat, 9 May - Sat, 16 May
Air Canada Logo
7:05 a.m. - 12:18 p.m.
YUL
-
SAN
8h 13m
1 stop
Air Canada Logo
7:00 a.m. - 3:31 p.m.
SAN
-
YUL
5h 31mdirect
C$ 511Air Canada
Thu, 21 May - Tue, 26 May
Air Canada Logo
5:45 p.m. - 8:43 p.m.
YUL
-
SAN
5h 58mdirect
Air Canada Logo
8:15 a.m. - 8:48 p.m.
SAN
-
YUL
9h 33m
1 stop
C$ 512Air Canada
Sat, 30 May - Tue, 2 Jun
Air Canada Logo
5:45 p.m. - 8:43 p.m.
YUL
-
SAN
5h 58mdirect
Air Canada Logo
7:00 a.m. - 3:31 p.m.
SAN
-
YUL
5h 31mdirect
C$ 514Air Canada
Sat, 9 May - Sat, 16 May
Air Canada Logo
7:05 a.m. - 12:18 p.m.
YUL
-
SAN
8h 13m
1 stop
Air Canada Logo
8:15 a.m. - 8:48 p.m.
SAN
-
YUL
9h 33m
1 stop
C$ 523Air Canada
Sat, 30 May - Tue, 2 Jun
Air Canada Logo
5:00 a.m. - 12:18 p.m.
YUL
-
SAN
10h 18m
1 stop
Air Canada Logo
1:15 p.m. - 1:51 a.m.
SAN
-
YUL
9h 36m
1 stop
C$ 530Air Canada
Thu, 21 May - Tue, 26 May

American Airlines flights from Montreal to San Diego

Our best American Airlines deals on Montreal to San Diego flight tickets
American Airlines
22 Apr
YUL12:30 p.m.Montreal Pierre Elliott Trudeau Intl
14h 03m
1 stop
SAN11:33 p.m.San Diego
27 Apr
SAN3:12 p.m.San Diego
17h 32m
1 stop
YUL11:44 a.m.Montreal Pierre Elliott Trudeau Intl
C$ 485
American Airlines
22 Apr
YUL12:30 p.m.Montreal Pierre Elliott Trudeau Intl
14h 03m
1 stop
SAN11:33 p.m.San Diego
27 Apr
SAN3:12 p.m.San Diego
17h 32m
1 stop
YUL11:44 a.m.Montreal Pierre Elliott Trudeau Intl
C$ 486
American Airlines
7 Mar
YUL2:25 p.m.Montreal Pierre Elliott Trudeau Intl
9h 42m
1 stop
SAN9:07 p.m.San Diego
14 Mar
SAN10:35 p.m.San Diego
13h 30m
1 stop
YUL3:05 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 544

Air Canada flights from Montreal to San Diego

Our best Air Canada deals on Montreal to San Diego flight tickets
Air Canada
21 May
YUL5:45 p.m.Montreal Pierre Elliott Trudeau Intl
5h 58m
SAN8:43 p.m.San Diego
26 May
SAN7:00 a.m.San Diego
5h 31m
YUL3:31 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 492
Air Canada
21 May
YUL7:05 a.m.Montreal Pierre Elliott Trudeau Intl
8h 13m
1 stop
SAN12:18 p.m.San Diego
26 May
SAN7:00 a.m.San Diego
5h 31m
YUL3:31 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 511
Air Canada
30 May
YUL5:45 p.m.Montreal Pierre Elliott Trudeau Intl
5h 58m
SAN8:43 p.m.San Diego
2 Jun
SAN8:15 a.m.San Diego
9h 33m
1 stop
YUL8:48 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 512

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 4 February 2026.
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

Sat 9/5

7:15 a.m.-2:10 p.m.

1 stop9h 55m

San Diego

Sat 16/5

3:30 p.m.-11:45 p.m.

1 stop29h 15m

C$ 452

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Wed 22/4

12:30 p.m.-11:33 p.m.

1 stop14h 03m

San Diego

Mon 27/4

3:12 p.m.-11:44 a.m.

1 stop17h 32m

C$ 485

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Wed 22/4

12:30 p.m.-11:33 p.m.

1 stop14h 03m

San Diego

Mon 27/4

3:12 p.m.-11:44 a.m.

1 stop17h 32m

C$ 486

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Thu 21/5

5:45 p.m.-8:43 p.m.

Nonstop5h 58m

San Diego

Tue 26/5

7:00 a.m.-3:31 p.m.

Nonstop5h 31m

C$ 492

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Sat 9/5

5:30 p.m.-2:10 p.m.

1 stop23h 40m

San Diego

Sat 16/5

3:30 p.m.-6:25 p.m.

2 stops23h 55m

C$ 507

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Thu 21/5

7:05 a.m.-12:18 p.m.

1 stop8h 13m

San Diego

Tue 26/5

7:00 a.m.-3:31 p.m.

Nonstop5h 31m

C$ 511

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Sat 30/5

5:45 p.m.-8:43 p.m.

Nonstop5h 58m

San Diego

Tue 2/6

8:15 a.m.-8:48 p.m.

1 stop9h 33m

C$ 512

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Sat 9/5

5:45 p.m.-8:43 p.m.

Nonstop5h 58m

San Diego

Sat 16/5

7:00 a.m.-3:31 p.m.

Nonstop5h 31m

C$ 514

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Sat 30/5

7:05 a.m.-12:18 p.m.

1 stop8h 13m

San Diego

Tue 2/6

8:15 a.m.-8:48 p.m.

1 stop9h 33m

C$ 523

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Thu 21/5

5:00 a.m.-12:18 p.m.

1 stop10h 18m

San Diego

Tue 26/5

1:15 p.m.-1:51 a.m.

1 stop9h 36m

C$ 530

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$ 417. If you are unable to visit San Diego during the month of January, then departing from Montreal during the month June is also very affordable. Most momondo users find prices during this month for around C$ 451.

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 Monday when prices can be found for as low as C$ 416. 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 Friday as prices are generally higher than usual. According to our data, the average ticket price to San Diego on Friday is C$ 569.

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$ 496 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$ 397 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 February 2026, prices for Montreal to San Diego flights are approximately 6% more expensive 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$ 315

Fastest flight time

5h 54m

Direct flights

Mon, Tue, Wed, Fri, Sat and Sun

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$ 315
The fastest flight from Montreal to San Diego takes 5h 54m
Direct flights go from Montreal to San Diego on Monday, Tuesday, Wednesday, Friday, Saturday and Sunday. There are no airlines offering direct flights.
There is 1 airport in San Diego. From Montreal there are direct flights to 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 5h 54m 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
WestJetPriceFrom C$ 267Free CancellationRating
7.2
3,255 reviews
Search WestJet flights
DeltaPriceFrom C$ 269Free CancellationRating
7.9
8,147 reviews
Search Delta flights
American AirlinesPriceFrom C$ 269Free CancellationRating
7.2
11,226 reviews
Search American Airlines flights
United AirlinesPriceFrom C$ 307Free CancellationRating
7.4
9,236 reviews
Search United Airlines flights
Air CanadaPriceFrom C$ 309Free CancellationRating
7.1
10,688 reviews
Search Air Canada flights
Porter AirlinesPriceFrom C$ 338Free CancellationRating
7.9
412 reviews
Search Porter Airlines flights

Travelling to a place near San Diego?

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

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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