Find flights
When to book
FAQs

Cheap flights from Ontario to San Sebastian from C$ 418

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/6. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — EAS
13 Jun — 20 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ontario to San Sebastian

Enter your travel dates to find the best prices.

Cheapest flights from Ontario to San Sebastian
Explore the most affordable flight options available from Ontario to San Sebastian. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 May 2026.

Mon 15/611:45 p.m.
YUL
-
EAS
1 stop11h 35m
Multiple Airlines
Wed 24/68:55 a.m.
EAS
-
YUL
1 stop14h 25m
Multiple Airlines
Deal found 9/5C$ 1,008
Sun 14/611:45 p.m.
YUL
-
EAS
1 stop26h 35m
Multiple Airlines
Tue 23/68:55 a.m.
EAS
-
YUL
2 stops42h 05m
Multiple Airlines
Deal found 9/5C$ 1,081
Mon 15/611:45 p.m.
YUL
-
EAS
1 stop26h 35m
Multiple Airlines
Tue 23/68:55 a.m.
EAS
-
YUL
2 stops18h 05m
Multiple Airlines
Deal found 9/5C$ 1,114
Wed 17/611:45 p.m.
YUL
-
EAS
1 stop26h 35m
Multiple Airlines
Wed 24/68:55 a.m.
EAS
-
YUL
1 stop14h 25m
Multiple Airlines
Deal found 9/5C$ 1,116
Mon 15/611:40 p.m.
YUL
-
EAS
1 stop15h 10m
Multiple Airlines
Mon 22/69:20 a.m.
EAS
-
YUL
1 stop12h 45m
Multiple Airlines
Deal found 9/5C$ 1,119
Sun 14/611:45 p.m.
YUL
-
EAS
1 stop26h 35m
Multiple Airlines
Wed 24/68:55 a.m.
EAS
-
YUL
2 stops18h 05m
Multiple Airlines
Deal found 9/5C$ 1,121
Sat 20/611:45 p.m.
YUL
-
EAS
1 stop26h 35m
Multiple Airlines
Wed 24/68:55 a.m.
EAS
-
YUL
2 stops18h 05m
Multiple Airlines
Deal found 9/5C$ 1,125
Mon 15/611:40 p.m.
YUL
-
EAS
1 stop15h 10m
Multiple Airlines
Thu 25/69:20 a.m.
EAS
-
YUL
1 stop12h 45m
Multiple Airlines
Deal found 9/5C$ 1,130
Sun 14/611:00 p.m.
YUL
-
EAS
2 stops27h 20m
Multiple Airlines
Mon 22/69:30 p.m.
EAS
-
YUL
1 stop24h 35m
Multiple Airlines
Deal found 9/5C$ 1,133
Wed 17/611:45 p.m.
YUL
-
EAS
1 stop11h 35m
Multiple Airlines
Tue 23/69:30 p.m.
EAS
-
YUL
2 stops29h 30m
Multiple Airlines
Deal found 9/5C$ 1,140
Fri 19/611:45 p.m.
YUL
-
EAS
1 stop26h 35m
Multiple Airlines
Wed 24/68:55 a.m.
EAS
-
YUL
2 stops18h 05m
Multiple Airlines
Deal found 9/5C$ 1,147
Sun 11/105:10 p.m.
YYZ
-
EAS
1 stop13h 50m
Iberia
Mon 19/109:20 a.m.
EAS
-
YYZ
1 stop11h 40m
Iberia
Deal found 12/5C$ 1,177

Find flight deals from Ontario to San Sebastian

Keep the following information in mind while searching for Ontario to San Sebastian flight deals. Data was last updated 14 May 2026.

Round-trip from

C$ 1,177

One-way from

C$ 418
Iberia
  • Iberia
  • 11/10-19/10
  • 2 total stops
  • 25h 30m total
  • Ontario to San Sebastian
Search Deals
1/6
  • 1/6
  • 3 total stops
  • 33h 25m total
  • Ontario to San Sebastian
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from 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, Cheapflights users made 629,999 searches. Data last updated 14 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

Wed 17/6

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

1 stop26h 35m

San Sebastián

Wed 24/6

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

1 stop14h 25m

C$ 1,116

MontrealSan Sebastian

YUL - EAS

YULEAS

Montreal Pierre Elliott Trudeau Intl

Tue 16/6

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

1 stop26h 45m

San Sebastián

Wed 24/6

8:55 a.m.-9:00 p.m.

2 stops18h 05m

C$ 1,121

MontrealSan Sebastian

YUL - EAS

YULEAS

Montreal Pierre Elliott Trudeau Intl

Fri 19/6

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

1 stop26h 35m

San Sebastián

Wed 24/6

8:55 a.m.-9:00 p.m.

2 stops18h 05m

C$ 1,147

MontrealSan Sebastian

YUL - EAS

YULEAS

Montreal Pierre Elliott Trudeau Intl

Wed 17/6

11:45 p.m.-5:20 p.m.

1 stop11h 35m

San Sebastián

Mon 22/6

9:30 p.m.-9:00 p.m.

2 stops29h 30m

C$ 1,185

TorontoSan Sebastian

YYZ - EAS

YYZEAS

Toronto Pearson Intl

Sun 11/10

7:15 p.m.-8:40 a.m.

2 stops31h 25m

San Sebastián

Mon 19/10

9:30 p.m.-11:00 p.m.

2 stops31h 30m

C$ 1,245

MontrealSan Sebastian

YUL - EAS

YULEAS

Montreal Pierre Elliott Trudeau Intl

Fri 2/10

10:00 p.m.-8:40 a.m.

2 stops28h 40m

San Sebastián

Tue 6/10

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

2 stops56h 20m

C$ 1,347

MontrealSan Sebastian

YUL - EAS

YULEAS

Montreal Pierre Elliott Trudeau Intl

Mon 15/6

10:30 a.m.-8:40 a.m.

2 stops16h 10m

San Sebastián

Wed 24/6

9:20 a.m.-9:50 a.m.

2 stops30h 30m

C$ 1,352

MontrealSan Sebastian

YUL - EAS

YULEAS

Montreal Pierre Elliott Trudeau Intl

Wed 24/6

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

1 stop26h 35m

San Sebastián

Wed 1/7

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

1 stop29h 25m

C$ 1,352

MontrealSan Sebastian

YUL - EAS

YULEAS

Montreal Pierre Elliott Trudeau Intl

Thu 18/6

11:45 p.m.-5:20 p.m.

1 stop11h 35m

San Sebastián

Thu 25/6

9:30 p.m.-10:40 a.m.

2 stops19h 10m

C$ 1,359

TorontoSan Sebastian

YYZ - EAS

YYZEAS

Toronto Pearson Intl

Mon 19/10

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

1 stop13h 50m

San Sebastián

Fri 23/10

9:30 p.m.-3:50 p.m.

2 stops48h 20m

C$ 1,407

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/5

Showing 1-10 of 22 resultsSorted by cheapest first
1
2
3

Best time to book a flight from Ontario to San Sebastian

Have a flexible travel schedule? Discover the best time to fly to San Sebastian from Ontario with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Ontario to San Sebastian
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Ontario to San Sebastian. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to San Sebastian from Ontario?

    For a flight from Ontario to San Sebastian, you will be flying into San Sebastián. San Sebastián (EAS) is just 15.7 km from the centre of the city.

  • How long is the flight from Region of Ontario to San Sebastian?

    Iberia and British Airways can get you from Region of Ontario to San Sebastian in just under 13h 50m. Your travel time can differ by up to 14h 50m. The distance between Region of Ontario and San Sebastian is about 6022 km. This flight may include one or multiple stops.

  • What are the most popular routes from Region of Ontario to San Sebastian?

    When deciding which route to take from Region of Ontario to San Sebastian consider Toronto Pearson Intl - San Sebastián, Montreal Pierre Elliott Trudeau Intl - San Sebastián or Toronto Island - San Sebastián as they are the most popular.

  • Can I find deals for flights from Ontario to San Sebastian that include hotel bookings?

    Yes. In addition to deals on Ontario to San Sebastian flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to San Sebastian?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to San Sebastian.

  • Can I find deals for business class flights from Ontario to San Sebastian?

    Yes. Cheapflights offers flight deals from Ontario to San Sebastian by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Travelling to a place near San Sebastian?

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Ontario to San Sebastian?

Deals for Ontario to San Sebastian flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Ontario to San Sebastian?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Ontario to San Sebastian for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Ontario to San Sebastian with no change fees?

Yes, we can. To see specific flights from Ontario to San Sebastian with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Ontario to San Sebastian become cheaper?

Of course! You can now track prices for flights from Ontario to San Sebastian and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.