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Cheap flights from Ontario to San Sebastian from C$ 500

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to San Sebastian departing on 11/10. 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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Find the cheapest flights from Ontario to San Sebastian

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
11:45 p.m. - 8:30 a.m.
YUL
-
EAS
26h 45m
1 stop
Multiple Airlines Logo
5:55 p.m. - 5:20 p.m.
EAS
-
YUL
29h 25m
1 stop
C$ 1,065Multiple Airlines
Tue, 1 Sep - Tue, 15 Sep
Multiple Airlines Logo
11:45 p.m. - 8:20 a.m.
YUL
-
EAS
26h 35m
1 stop
Multiple Airlines Logo
8:55 a.m. - 5:20 p.m.
EAS
-
YUL
14h 25m
1 stop
C$ 1,153Multiple Airlines
Sun, 31 May - Sun, 7 Jun
Multiple Airlines Logo
11:40 p.m. - 8:50 p.m.
YUL
-
EAS
15h 10m
1 stop
Multiple Airlines Logo
9:20 a.m. - 4:05 p.m.
EAS
-
YUL
12h 45m
1 stop
C$ 1,168Multiple Airlines
Wed, 12 Aug - Fri, 21 Aug
Iberia Logo
5:10 p.m. - 1:00 p.m.
YYZ
-
EAS
13h 50m
1 stop
Iberia Logo
9:20 a.m. - 3:00 p.m.
EAS
-
YYZ
11h 40m
1 stop
C$ 1,205Iberia
Sat, 17 Oct - Wed, 21 Oct
Iberia Logo
5:10 p.m. - 1:00 p.m.
YYZ
-
EAS
13h 50m
1 stop
Iberia Logo
9:20 a.m. - 3:00 p.m.
EAS
-
YYZ
11h 40m
1 stop
C$ 1,206Iberia
Sat, 17 Oct - Wed, 21 Oct
British Airways Logo
5:10 p.m. - 1:00 p.m.
YYZ
-
EAS
13h 50m
1 stop
British Airways Logo
9:30 p.m. - 4:05 p.m.
EAS
-
YYZ
24h 35m
2 stops
C$ 1,219British Airways
Sat, 17 Oct - Wed, 21 Oct
British Airways Logo
5:10 p.m. - 1:00 p.m.
YYZ
-
EAS
13h 50m
1 stop
British Airways Logo
9:30 p.m. - 4:05 p.m.
EAS
-
YYZ
24h 35m
2 stops
C$ 1,220British Airways
Sat, 17 Oct - Wed, 21 Oct
Multiple Airlines Logo
9:30 p.m. - 5:20 p.m.
YUL
-
EAS
13h 50m
2 stops
Multiple Airlines Logo
9:20 a.m. - 4:05 p.m.
EAS
-
YUL
12h 45m
1 stop
C$ 1,236Multiple Airlines
Tue, 1 Sep - Tue, 15 Sep
Multiple Airlines Logo
11:00 p.m. - 8:20 a.m.
YUL
-
EAS
27h 20m
2 stops
Multiple Airlines Logo
12:20 p.m. - 9:00 p.m.
EAS
-
YUL
38h 40m
3 stops
C$ 1,242Multiple Airlines
Sun, 31 May - Sun, 7 Jun
Iberia Logo
10:00 p.m. - 8:20 a.m.
YUL
-
EAS
28h 20m
2 stops
Iberia Logo
5:55 p.m. - 8:15 p.m.
EAS
-
YUL
56h 20m
2 stops
C$ 1,343Iberia
Fri, 2 Oct - Tue, 6 Oct

American Airlines flights from Region of Ontario to San Sebastian

Our best American Airlines deals on Region of Ontario to San Sebastian flight tickets
American Airlines
7 Sep
YYZ5:10 p.m.Toronto Pearson Intl
13h 50m
1 stop
EAS1:00 p.m.San Sebastián
14 Sep
EAS9:20 a.m.San Sebastián
11h 40m
1 stop
YYZ3:00 p.m.Toronto Pearson Intl
C$ 1,522
American Airlines
7 Sep
YYZ11:53 a.m.Toronto Pearson Intl
14h 47m
2 stops
EAS8:40 a.m.San Sebastián
14 Sep
EAS9:20 a.m.San Sebastián
11h 40m
1 stop
YYZ3:00 p.m.Toronto Pearson Intl
C$ 1,561
American Airlines
11 Aug
YUL7:55 a.m.Montreal Pierre Elliott Trudeau Intl
42h 45m
2 stops
EAS8:40 a.m.San Sebastián
20 Aug
EAS9:20 a.m.San Sebastián
32h 24m
2 stops
YUL11:44 a.m.Montreal Pierre Elliott Trudeau Intl
C$ 1,686

British Airways flights from Region of Ontario to San Sebastian

Our best British Airways deals on Region of Ontario to San Sebastian flight tickets
British Airways
17 Oct
YYZ5:10 p.m.Toronto Pearson Intl
13h 50m
1 stop
EAS1:00 p.m.San Sebastián
21 Oct
EAS9:30 p.m.San Sebastián
24h 35m
2 stops
YYZ4:05 p.m.Toronto Pearson Intl
C$ 1,219
British Airways
17 Oct
YYZ5:10 p.m.Toronto Pearson Intl
13h 50m
1 stop
EAS1:00 p.m.San Sebastián
21 Oct
EAS9:30 p.m.San Sebastián
24h 35m
2 stops
YYZ4:05 p.m.Toronto Pearson Intl
C$ 1,220
British Airways
17 Oct
YYZ3:00 p.m.Toronto Pearson Intl
16h 00m
2 stops
EAS1:00 p.m.San Sebastián
21 Oct
EAS9:30 p.m.San Sebastián
50h 00m
2 stops
YYZ5:30 p.m.Toronto Pearson Intl
C$ 1,427

momondo Fare Finder

 
Customize your flight search to find flights from Region of Ontario to San Sebastian 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 6 May 2026.
Use the filters below to find and compare flights from Ontario to San Sebastian that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MontrealSan Sebastian

YUL - EAS

YULEAS

Montreal Pierre Elliott Trudeau Intl

Tue 1/9

11:45 p.m.-8:30 a.m.

1 stop26h 45m

San Sebastián

Tue 15/9

5:55 p.m.-5:20 p.m.

1 stop29h 25m

C$ 1,065

MontrealSan Sebastian

YUL - EAS

YULEAS

Montreal Pierre Elliott Trudeau Intl

Sun 31/5

11:45 p.m.-8:20 a.m.

1 stop26h 35m

San Sebastián

Sun 7/6

8:55 a.m.-5:20 p.m.

1 stop14h 25m

C$ 1,153

MontrealSan Sebastian

YUL - EAS

YULEAS

Montreal Pierre Elliott Trudeau Intl

Wed 12/8

11:40 p.m.-8:50 p.m.

1 stop15h 10m

San Sebastián

Fri 21/8

9:20 a.m.-4:05 p.m.

1 stop12h 45m

C$ 1,168
Quickest round-trip

TorontoSan Sebastian

YYZ - EAS

YYZEAS

Toronto Pearson Intl

Sat 17/10

5:10 p.m.-1:00 p.m.

1 stop13h 50m

San Sebastián

Wed 21/10

9:20 a.m.-3:00 p.m.

1 stop11h 40m

C$ 1,205

TorontoSan Sebastian

YYZ - EAS

YYZEAS

Toronto Pearson Intl

Sat 17/10

5:10 p.m.-1:00 p.m.

1 stop13h 50m

San Sebastián

Wed 21/10

9:20 a.m.-3:00 p.m.

1 stop11h 40m

C$ 1,206

TorontoSan Sebastian

YYZ - EAS

YYZEAS

Toronto Pearson Intl

Sat 17/10

5:10 p.m.-1:00 p.m.

1 stop13h 50m

San Sebastián

Wed 21/10

9:30 p.m.-4:05 p.m.

2 stops24h 35m

C$ 1,219

TorontoSan Sebastian

YYZ - EAS

YYZEAS

Toronto Pearson Intl

Sat 17/10

5:10 p.m.-1:00 p.m.

1 stop13h 50m

San Sebastián

Wed 21/10

9:30 p.m.-4:05 p.m.

2 stops24h 35m

C$ 1,220

MontrealSan Sebastian

YUL - EAS

YULEAS

Montreal Pierre Elliott Trudeau Intl

Tue 1/9

9:30 p.m.-5:20 p.m.

2 stops13h 50m

San Sebastián

Tue 15/9

9:20 a.m.-4:05 p.m.

1 stop12h 45m

C$ 1,236

MontrealSan Sebastian

YUL - EAS

YULEAS

Montreal Pierre Elliott Trudeau Intl

Sun 31/5

11:00 p.m.-8:20 a.m.

2 stops27h 20m

San Sebastián

Sun 7/6

12:20 p.m.-9:00 p.m.

3 stops38h 40m

C$ 1,242

MontrealSan Sebastian

YUL - EAS

YULEAS

Montreal Pierre Elliott Trudeau Intl

Fri 2/10

10:00 p.m.-8:20 a.m.

2 stops28h 20m

San Sebastián

Tue 6/10

5:55 p.m.-8:15 p.m.

2 stops56h 20m

C$ 1,343

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 Sebastian from

How to get the cheapest flight ticket from Region of Ontario to San Sebastian

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 cheapest airline that flies from Ontario to San Sebastián?

Iberia is the most popular carrier operating from Ontario to San Sebastián

Which airlines fly to San Sebastian?

KLM, TAP AIR PORTUGAL and Delta are the top three most popular airlines that fly to San Sebastian from Region of Ontario according to our data. KLM is the first choice among our users, with 54% of people opting to fly with this airline when travelling to San Sebastian. Keep in mind that there are 6 different airlines that fly to San Sebastian on a routine basis, so you have a few additional options to choose from.

Cheap Region of Ontario to San Sebastian flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Region of Ontario to San Sebastian

Fastest flight time

13h 50m

Direct flights

None
The fastest flight from Region of Ontario to San Sebastian takes 13h 50m
There are no direct flights from Region of Ontario to San Sebastian. There are no popular flight routes from Region of Ontario to San Sebastian.
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Frequently asked questions about flying from Ontario to San Sebastian

  • When did momondo last update prices for flights from Ontario to San Sebastián Airport?

    Prices for flights from Ontario to San Sebastián Airport are updated daily.

  • How old do you have to be to fly from Ontario to San Sebastián 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 Ontario to San Sebastián Airport.

  • What documentation or ID do you need to fly to San Sebastián Airport?

    The travel and health documents required for your trip to San Sebastián Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at San Sebastián Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Travelling to a place near San Sebastian?

Book flights to San Sebastian if you plan to visit one of these locations
Hondarribia

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to San Sebastian?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to San Sebastian from Ontario.

Can I find flights from Ontario to San Sebastian with flexible booking policies on momondo?

Yes. All flights to San Sebastian from Ontario on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Ontario to San Sebastian?

Once you have performed a search for Ontario to San Sebastian flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are not ready to book a flight from Ontario to San Sebastian now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to San Sebastian and let you know when they change.

An easier way to manage your San Sebastian trip

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