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Cheap flights from Ontario to San Sebastian from C$ 357

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 4/10. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — EAS
10 Sep — 17 Sep1
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 11 August 2026.

Sat 26/911:45 p.m. -
1 stop26h 35m
Mon 5/108:55 a.m. -
1 stop14h 25m
Deal found 7/8C$ 961
Sun 4/105:10 p.m. -
1 stop13h 50m
Fri 16/109:30 p.m. -
1 stop23h 30m
Deal found 7/8C$ 1,028
Sun 4/105:10 p.m. -
1 stop13h 50m
Thu 15/109:30 p.m. -
1 stop23h 30m
Deal found 9/8C$ 1,033
Sun 4/105:10 p.m. -
1 stop13h 50m
Fri 16/101:40 p.m. -
1 stop31h 20m
Deal found 9/8C$ 1,051
Mon 19/105:10 p.m. -
1 stop13h 50m
Mon 26/109:30 p.m. -
2 stops30h 59m
Deal found 7/8C$ 1,061
Sun 4/105:10 p.m. -
1 stop13h 50m
Thu 15/101:40 p.m. -
2 stops30h 03m
Deal found 9/8C$ 1,078
Sun 4/1010:15 p.m. -
2 stops28h 25m
Fri 16/109:30 p.m. -
1 stop23h 30m
Deal found 9/8C$ 1,085
Mon 16/119:15 p.m. -
2 stops17h 35m
Fri 20/119:30 p.m. -
2 stops51h 45m
Deal found 7/8C$ 1,107
Fri 25/91:15 p.m. -
2 stops17h 45m
Wed 30/99:30 p.m. -
2 stops51h 05m
Deal found 6/8C$ 1,107
Sat 5/121:10 p.m. -
2 stops17h 50m
Wed 9/129:30 p.m. -
2 stops28h 45m
Deal found 8/8C$ 1,110
Sat 26/910:00 p.m. -
1 stop12h 10m
Mon 5/109:30 p.m. -
2 stops42h 22m
Deal found 7/8C$ 1,130
Sun 4/108:45 p.m. -
3 stops29h 35m
Thu 15/106:00 p.m. -
3 stops34h 05m
Deal found 9/8C$ 1,139

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 11 August 2026.

Round-trip from

C$ 961

One-way from

C$ 357
26/9-5/10
  • 26/9-5/10
  • 2 total stops
  • 41h 00m total
  • Ontario to San Sebastian
Search Deals
4/10
  • 4/10
  • 2 total stops
  • 26h 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 11 August 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 Montreal Pierre Elliott Trudeau Intl - EAS San Sebastián

YULEAS

Montreal Pierre Elliott Trudeau Intl

Sat 26/9

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

1 stop26h 35m

San Sebastián

Mon 5/10

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

1 stop14h 25m

C$ 961

TorontoSan Sebastian

YYZ Toronto Pearson Intl - EAS San Sebastián

YYZEAS

Toronto Pearson Intl

Sun 4/10

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

1 stop13h 50m

San Sebastián

Fri 16/10

9:30 p.m.-3:00 p.m.

1 stop23h 30m

C$ 1,028

TorontoSan Sebastian

YYZ Toronto Pearson Intl - EAS San Sebastián

YYZEAS

Toronto Pearson Intl

Sun 4/10

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

1 stop13h 50m

San Sebastián

Thu 15/10

9:30 p.m.-3:00 p.m.

1 stop23h 30m

C$ 1,033

TorontoSan Sebastian

YYZ Toronto Pearson Intl - EAS San Sebastián

YYZEAS

Toronto Pearson Intl

Sun 4/10

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

1 stop13h 50m

San Sebastián

Fri 16/10

1:40 p.m.-12:07 p.m.

2 stops28h 27m

C$ 1,051

TorontoSan Sebastian

YYZ Toronto Pearson Intl - EAS San Sebastián

YYZEAS

Toronto Pearson Intl

Mon 19/10

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

1 stop13h 50m

San Sebastián

Mon 26/10

9:30 p.m.-11:29 p.m.

2 stops30h 59m

C$ 1,061

MontrealSan Sebastian

YUL Montreal Pierre Elliott Trudeau Intl - EAS San Sebastián

YULEAS

Montreal Pierre Elliott Trudeau Intl

Mon 16/11

9:15 p.m.-8:50 p.m.

2 stops17h 35m

San Sebastián

Fri 20/11

9:30 p.m.-7:15 p.m.

2 stops51h 45m

C$ 1,107

TorontoSan Sebastian

YYZ Toronto Pearson Intl - EAS San Sebastián

YYZEAS

Toronto Pearson Intl

Sat 5/12

11:36 a.m.-1:00 p.m.

2 stops19h 24m

San Sebastián

Wed 9/12

1:40 p.m.-3:50 p.m.

2 stops32h 10m

C$ 1,107

TorontoSan Sebastian

YYZ Toronto Pearson Intl - EAS San Sebastián

YYZEAS

Toronto Pearson Intl

Sun 4/10

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

3 stops29h 35m

San Sebastián

Thu 15/10

6:00 p.m.-10:05 p.m.

3 stops34h 05m

C$ 1,139

TorontoSan Sebastian

YYZ Toronto Pearson Intl - EAS San Sebastián

YYZEAS

Toronto Pearson Intl

Sun 4/10

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

1 stop13h 50m

San Sebastián

Fri 16/10

9:20 a.m.-11:29 p.m.

2 stops20h 09m

C$ 1,156

TorontoSan Sebastian

YYZ Toronto Pearson Intl - EAS San Sebastián

YYZEAS

Toronto Pearson Intl

Mon 5/10

10:00 p.m.-8:50 p.m.

2 stops16h 50m

San Sebastián

Fri 16/10

9:30 p.m.-8:10 p.m.

2 stops28h 40m

C$ 1,187

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/8

Showing 1-10 of 35 resultsSorted by cheapest first
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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, American Airlines, 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 3h 45m. 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 Montreal Pierre Elliott Trudeau Intl - San Sebastián, Toronto Pearson 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

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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.

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