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San Sebastian

$845+ Cheap flights from Ontario (ONT) to San Sebastian (EAS)

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 7/26. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — EAS
may. 4 — may. 111
dom. 5/4
dom. 5/11
1 adult, Economy
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Cheap flight deals from Ontario to San Sebastian

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to San Sebastian (EAS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated abril 29, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
2 stars

Round-trip from

$2,347
(lol.travel)

One-way from

$845
(FlightHub)

Popular in

November

Cheapest in

August

Average price

$1,195
Provider with most accurate pricing for Ontario-San Sebastián flight deals.
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Provider most trusted by Cheapflights users for Ontario-San Sebastián flights.
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From Ontario to San Sebastián
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One-way flight from Ontario to San Sebastián
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Highest demand for flights based on searches. 7% potential increase in price ($102 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($66 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from Ontario to San Sebastian

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 abril 29, 2025.

This lol.travel deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 5/1012:41 pmONT - EAS
2 stops34h 59mIberia
vie. 5/239:20 amEAS - ONT
2 stops23h 23mIberia
Deal found 4/28$2,347
This Priceline deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 7/2710:53 amONT - EAS
2 stops20h 47mMultiple Airlines
jue. 8/79:30 pmEAS - ONT
2 stops33h 44mMultiple Airlines
Deal found 4/28$2,435

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 2,558,603 searches. Data last updated abril 29, 2025.
Use the filters below to find and compare flights from Ontario to San Sebastian that are best for you.

Fly from

Ontario

Fly to

San Sebastian

Route

Depart

Return

Price

OntarioSan Sebastian

ONT - EAS

ONTEAS

Ontario

sáb. 5/10

12:41 pm-8:40 am

2 stops34h 59m

San Sebastián

vie. 5/23

9:20 am-11:43 pm

2 stops23h 23m

$2,347

OntarioSan Sebastian

ONT - EAS

ONTEAS

Ontario

dom. 7/27

10:53 am-4:40 pm

2 stops20h 47m

San Sebastián

jue. 8/7

9:30 pm-10:14 pm

2 stops33h 44m

$2,435

OntarioSan Sebastian

ONT - EAS

ONTEAS

Ontario

sáb. 7/26

10:53 am-8:40 am

2 stops36h 47m

$845

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

  • Most accurate provider: When it comes to deals on Ontario-San Sebastian flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-San Sebastian flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-San Sebastian flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-San Sebastian flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-San Sebastian flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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.

Reviews of airlines servicing San Sebastian

Get insights into the airlines that provide service to San Sebastian. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Sebastian. Reviews last updated abril 29, 2025.
Iberia
7.0
Good
2,693 reviews

Crew

7.6

Boarding

7.1

Comfort

6.7

Food

6.3

Overall

7.0

Entertainment

6.6

Reviews

1 / 20
10.0
Excellent

Tiago,Mar 2025

GRU - MAD

Boarding was super bad. Did the queue and in the end had to wait for someone to validate my passport (and my friends too) no explanation, in the end the person that sent me to other colleague had to do it so completely non sense. Stewards not smiling or helpful. Had the impression that we were bothering them. Food was almost thrown away like animals and not enough. For a 10h flight during night it could be nice to offer a little more food or snacks for those who don’t sleep. With Iberia quality is not to be expected unfortunately. Reviewing options for future flights.
Iberia
7.0
Good
2,693 reviews
Iberia
7.0
Good
2,693 reviews

Crew

7.6

Boarding

7.1

Comfort

6.7

Food

6.3

Overall

7.0

Entertainment

6.6

Reviews

1 / 20
10.0
Excellent

Tiago,Mar 2025

GRU - MAD

Boarding was super bad. Did the queue and in the end had to wait for someone to validate my passport (and my friends too) no explanation, in the end the person that sent me to other colleague had to do it so completely non sense. Stewards not smiling or helpful. Had the impression that we were bothering them. Food was almost thrown away like animals and not enough. For a 10h flight during night it could be nice to offer a little more food or snacks for those who don’t sleep. With Iberia quality is not to be expected unfortunately. Reviewing options for future flights.

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.

  • 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.

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