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Cheap flights from Ontario to San Sebastian from C$ 451

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 23/8. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — EAS
30 Jul — 6 Aug1
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 30 June 2026.

Wed 29/710:05 p.m.
YUL
-
EAS
2 stops28h 15m
Multiple Airlines
Wed 5/85:55 p.m.
EAS
-
YUL
3 stops29h 07m
Multiple Airlines
Deal found 29/6C$ 1,007
Sat 17/105:10 p.m.
YYZ
-
EAS
1 stop13h 50m
Iberia
Wed 21/109:20 a.m.
EAS
-
YYZ
1 stop11h 40m
Iberia
Deal found 25/6C$ 1,203
Sat 11/76:50 p.m.
YUL
-
EAS
1 stop10h 40m
Multiple Airlines
Thu 10/99:20 a.m.
EAS
-
YUL
1 stop12h 45m
Multiple Airlines
Deal found 25/6C$ 1,208
Sat 17/105:10 p.m.
YYZ
-
EAS
1 stop13h 50m
British Airways
Wed 21/109:30 p.m.
EAS
-
YYZ
2 stops28h 40m
British Airways
Deal found 25/6C$ 1,217
Mon 3/83:30 p.m.
YUL
-
EAS
3 stops34h 50m
Multiple Airlines
Thu 13/89:05 a.m.
EAS
-
YUL
2 stops31h 55m
Multiple Airlines
Deal found 29/6C$ 1,230
Mon 10/810:55 p.m.
YYZ
-
EAS
2 stops27h 25m
Multiple Airlines
Mon 17/88:55 a.m.
EAS
-
YYZ
3 stops35h 05m
Multiple Airlines
Deal found 27/6C$ 1,231
Sat 11/76:50 p.m.
YUL
-
EAS
1 stop10h 40m
Multiple Airlines
Wed 9/98:55 a.m.
EAS
-
YUL
1 stop14h 25m
Multiple Airlines
Deal found 25/6C$ 1,235
Tue 7/711:45 p.m.
YUL
-
EAS
1 stop11h 35m
Multiple Airlines
Thu 10/99:20 a.m.
EAS
-
YUL
1 stop12h 45m
Multiple Airlines
Deal found 25/6C$ 1,241
Sat 11/76:50 p.m.
YUL
-
EAS
1 stop10h 40m
Multiple Airlines
Tue 8/98:55 a.m.
EAS
-
YUL
1 stop14h 25m
Multiple Airlines
Deal found 25/6C$ 1,247
Sat 10/1010:05 p.m.
YUL
-
EAS
2 stops28h 15m
Multiple Airlines
Sat 17/105:55 p.m.
EAS
-
YUL
2 stops26h 20m
Multiple Airlines
Deal found 29/6C$ 1,266
Tue 7/711:45 p.m.
YUL
-
EAS
1 stop11h 35m
Multiple Airlines
Wed 9/98:55 a.m.
EAS
-
YUL
1 stop14h 25m
Multiple Airlines
Deal found 25/6C$ 1,268
Tue 7/711:45 p.m.
YUL
-
EAS
1 stop11h 35m
Multiple Airlines
Tue 8/98:55 a.m.
EAS
-
YUL
1 stop14h 25m
Multiple Airlines
Deal found 25/6C$ 1,279

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 30 June 2026.

Round-trip from

C$ 1,007

One-way from

C$ 451
29/7-5/8
  • 29/7-5/8
  • 5 total stops
  • 57h 22m total
  • Ontario to San Sebastian
Search Deals
23/8
  • 23/8
  • 2 total stops
  • 37h 05m 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 30 June 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 29/7

10:05 p.m.-8:20 a.m.

2 stops28h 15m

San Sebastián

Wed 5/8

5:55 p.m.-5:02 p.m.

3 stops29h 07m

C$ 1,007

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$ 1,203

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.-8:10 p.m.

2 stops28h 40m

C$ 1,217

TorontoSan Sebastian

YYZ - EAS

YYZEAS

Toronto Pearson Intl

Mon 10/8

10:55 p.m.-8:20 a.m.

2 stops27h 25m

San Sebastián

Mon 17/8

8:55 a.m.-2:00 p.m.

3 stops35h 05m

C$ 1,231
Quickest round-trip

MontrealSan Sebastian

YUL - EAS

YULEAS

Montreal Pierre Elliott Trudeau Intl

Sat 11/7

6:50 p.m.-11:30 a.m.

1 stop10h 40m

San Sebastián

Fri 11/9

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

1 stop14h 25m

C$ 1,303

MontrealSan Sebastian

YUL - EAS

YULEAS

Montreal Pierre Elliott Trudeau Intl

Mon 3/8

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

1 stop11h 35m

San Sebastián

Wed 12/8

9:30 p.m.-6:48 p.m.

2 stops27h 18m

C$ 1,332

TorontoSan Sebastian

YTZ - EAS

YTZEAS

Toronto Island

Mon 13/7

5:30 p.m.-8:20 a.m.

3 stops32h 50m

San Sebastián

Wed 22/7

5:55 p.m.-5:51 p.m.

3 stops29h 56m

C$ 1,390

MontrealSan Sebastian

YUL - EAS

YULEAS

Montreal Pierre Elliott Trudeau Intl

Mon 3/8

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

1 stop26h 35m

San Sebastián

Fri 14/8

8:55 a.m.-11:15 a.m.

2 stops32h 20m

C$ 1,536

MontrealSan Sebastian

YUL - EAS

YULEAS

Montreal Pierre Elliott Trudeau Intl

Sun 6/9

10:00 p.m.-6:40 p.m.

2 stops38h 40m

San Sebastián

Tue 15/9

9:30 p.m.-8:15 p.m.

2 stops28h 45m

C$ 1,545

MontrealSan Sebastian

YUL - EAS

YULEAS

Montreal Pierre Elliott Trudeau Intl

Mon 7/9

10:00 p.m.-6:40 p.m.

2 stops14h 40m

San Sebastián

Mon 21/9

9:30 p.m.-8:15 p.m.

2 stops28h 45m

C$ 1,545

Flights are sorted by cheapest round-trip flights first.

Deals found on 25/6

Showing 1-10 of 17 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 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 . The distance between Region of Ontario and San Sebastian is about 6022 km.

  • 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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