HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news

Cheap flights from Ontario (ONT) to San Sebastian (EAS) from $2,165

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/22. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
ONT — EAS
Apr 30 — May 71
From?
To?
Tue 4/30
Tue 5/7
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

What is the cheapest month to fly from Ontario to San Sebastian?

Flights from Ontario to San Sebastian lean towards being more expensive in June. Prices are generally better when you fly from Ontario to San Sebastian in January, with the cheapest ticket starting at $657.

When is the cheapest time to fly from Ontario to San Sebastian (ONT - EAS)?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ontario to San Sebastian as you normally would.

Cheap Iberia flights from Ontario to San Sebastian

Explore cheap flight options specifically provided by Iberia for the route between Ontario and San Sebastian. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 3,068,701 searches. Data last updated April 25, 2024.
Take a peek at the cheapest Iberia flights we've detected traveling from Ontario to San Sebastian. Come back soon if you're not finding the exact deal you're looking for.
Sat 6/228:10 amONT - EAS
2 stops39h 30mIberia
Fri 7/129:20 amEAS - ONT
2 stops23h 29mIberia
Deal found 4/24$2,165
Thu 5/910:34 amONT - EAS
2 stops17h 26mIberia
Sun 5/121:40 pmEAS - ONT
2 stops19h 16mIberia
Deal found 4/25$2,283
Mon 7/812:43 pmONT - EAS
2 stops23h 07mIberia
Sat 7/201:40 pmEAS - ONT
2 stops19h 09mIberia
Deal found 4/25$2,566
Sun 6/238:10 amONT - EAS
2 stops23h 30mIberia
Fri 7/59:20 amEAS - ONT
2 stops21h 45mIberia
Deal found 4/24$3,301

Cheap American Airlines flights from Ontario to San Sebastian

Explore cheap flight options specifically provided by American Airlines for the route between Ontario and San Sebastian. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 3,068,701 searches. Data last updated April 25, 2024.
To aid your search, here are some of the cheapest American Airlines flights we've found from Ontario to San Sebastian. Deals are refreshing constantly so come back soon for more options.
Thu 6/208:10 amONT - EAS
2 stops19h 50mAmerican Airlines
Thu 7/119:20 amEAS - ONT
2 stops22h 40mAmerican Airlines
Deal found 4/24$3,644
Thu 6/208:10 amONT - EAS
2 stops19h 50mAmerican Airlines
Mon 7/159:20 amEAS - ONT
2 stops18h 30mAmerican Airlines
Deal found 4/24$3,646

Cheap Ontario to San Sebastian flights in April & May 2024

Find cheap flight options from Ontario to San Sebastian specifically for the months of April and May 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,068,701 searches. Prices were last updated on April 25, 2024.
These are some of the best deals we've found on flights to San Sebastian in 2024 at this time. Check back soon for alternative fares.
Thu 5/910:34 amONT - EAS
2 stops17h 26mIberia
Sun 5/121:40 pmEAS - ONT
2 stops19h 16mIberia
Deal found 4/25$2,283

Ontario to San Sebastian 2024 flight deals

Discover exclusive flight deals for travel between Ontario and San Sebastian in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,068,701 searches. Data last updated April 25, 2024.
These are some of the best deals we've found on flights to San Sebastian in 2024 at this time. Check back soon for alternative fares.
Sat 6/228:10 amONT - EAS
2 stops39h 30mIberia
Fri 7/129:20 amEAS - ONT
2 stops23h 29mIberia
Deal found 4/24$2,165
Thu 5/910:34 amONT - EAS
2 stops17h 26mIberia
Sun 5/121:40 pmEAS - ONT
2 stops19h 16mIberia
Deal found 4/25$2,283
Mon 7/812:43 pmONT - EAS
2 stops23h 07mIberia
Sat 7/201:40 pmEAS - ONT
2 stops19h 09mIberia
Deal found 4/25$2,566
Thu 12/1911:01 amONT - EAS
2 stops16h 59mIberia
Fri 12/279:20 amEAS - ONT
2 stops23h 55mIberia
Deal found 4/24$2,753
Sun 6/238:10 amONT - EAS
2 stops23h 30mIberia
Fri 7/59:20 amEAS - ONT
2 stops21h 45mIberia
Deal found 4/24$3,301
Fri 6/218:10 amONT - EAS
2 stops19h 50mMultiple Airlines
Mon 7/151:40 pmEAS - ONT
2 stops19h 09mMultiple Airlines
Deal found 4/24$3,604
Thu 6/208:10 amONT - EAS
2 stops19h 50mAmerican Airlines
Thu 7/119:20 amEAS - ONT
2 stops22h 40mAmerican Airlines
Deal found 4/24$3,644
Thu 6/208:10 amONT - EAS
2 stops19h 50mAmerican Airlines
Mon 7/159:20 amEAS - ONT
2 stops18h 30mAmerican Airlines
Deal found 4/24$3,646
Mon 12/1610:58 amONT - EAS
2 stops17h 02mAmerican Airlines
Mon 12/309:20 amEAS - ONT
2 stops23h 55mAmerican Airlines
Deal found 4/24$3,696

Find flights from Ontario to San Sebastian within your budget

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 3,068,701 searches. Data last updated April 25, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$2,165 - $3,900

Route

Depart

Return

Price

OntarioSan Sebastián

ONT - EAS

ONTEAS

Ontario

Sat 6/22

2 stops39h 30m

San Sebastián

Fri 7/12

2 stops23h 29m

$2,165

OntarioSan Sebastián

ONT - EAS

ONTEAS

Ontario

Thu 5/9

2 stops17h 26m

San Sebastián

Sun 5/12

2 stops19h 16m

$2,283

OntarioSan Sebastián

ONT - EAS

ONTEAS

Ontario

Mon 7/8

2 stops23h 07m

San Sebastián

Sat 7/20

2 stops19h 09m

$2,566

OntarioSan Sebastián

ONT - EAS

ONTEAS

Ontario

Sun 6/23

2 stops23h 30m

San Sebastián

Fri 7/5

2 stops21h 45m

$3,301

OntarioSan Sebastián

ONT - EAS

ONTEAS

Ontario

Fri 6/21

2 stops19h 50m

San Sebastián

Mon 7/15

2 stops19h 09m

$3,604

OntarioSan Sebastián

ONT - EAS

ONTEAS

Ontario

Thu 6/20

2 stops19h 50m

San Sebastián

Thu 7/11

2 stops22h 40m

$3,644

OntarioSan Sebastián

ONT - EAS

ONTEAS

Ontario

Thu 6/20

2 stops19h 50m

San Sebastián

Mon 7/15

2 stops18h 30m

$3,646

OntarioSan Sebastián

ONT - EAS

ONTEAS

Ontario

Sun 7/7

2 stops34h 51m

San Sebastián

Sat 7/20

2 stops19h 09m

$3,740

OntarioSan Sebastián

ONT - EAS

ONTEAS

Ontario

Fri 6/21

2 stops19h 50m

San Sebastián

Thu 7/11

2 stops19h 09m

$3,900

Flights are sorted by cheapest first

Deals found on 4/24

No data available for this route at this time. Please check back soon.

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 April 25, 2024.
See what other customers who have flown with Iberia and American Airlines from Ontario to San Sebastian have to say. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.3
Good
14,898 reviews
Check prices

Crew

8.0

Boarding

7.6

Overall

7.3

Comfort

7.2

Food

6.6

Entertainment

7.1

Reviews

1 / 10

Entertainment was ok, no delays either. The food was just ok, the trays were dirty and overall the plane seemed dated.

American Airlines
7.3
Good
14,898 reviews
American Airlines
7.3
Good
14,898 reviews
Check prices

Crew

8.0

Boarding

7.6

Overall

7.3

Comfort

7.2

Food

6.6

Entertainment

7.1

Reviews

1 / 10

Entertainment was ok, no delays either. The food was just ok, the trays were dirty and overall the plane seemed dated.

Iberia
7.1
Good
2,773 reviews
American Airlines
7.3
Good
14,898 reviews
Check prices

Crew

8.0

Boarding

7.6

Overall

7.3

Comfort

7.2

Food

6.6

Entertainment

7.1

Reviews

1 / 10

Entertainment was ok, no delays either. The food was just ok, the trays were dirty and overall the plane seemed dated.

British Airways
6.8
Okay
6,924 reviews
American Airlines
7.3
Good
14,898 reviews
Check prices

Crew

8.0

Boarding

7.6

Overall

7.3

Comfort

7.2

Food

6.6

Entertainment

7.1

Reviews

1 / 10

Entertainment was ok, no delays either. The food was just ok, the trays were dirty and overall the plane seemed dated.

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 flights from Ontario to San Sebastian for under $2,200 on Cheapflights?

    Yes, there are multiple flights from Ontario to San Sebastian for under $2,200. The cheapest flight booked recently is on Iberia for just $2,165, but on average you can expect to pay $3,820.

  • What does ONT to EAS mean?

    Ontario Airport is ONT and San Sebastián Airport is EAS. These codes are created by the International Air Transport Association (IATA) and airlines use them to identify the departing and arrival airports in the flight routes they service.

  • Can I find deals for flights from Ontario to San Sebastian that include extra baggage allowance?

    The amount of baggage you can bring on your Ontario to San Sebastian flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Ontario to San Sebastian with specific airlines?

    Yes, Cheapflights allows you to browse and filter Ontario to San Sebastian flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • 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.

  • Can I find deals for flights from Ontario to San Sebastian that allow pets onboard?

    Many airlines flying from Ontario to San Sebastian offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Ontario to San Sebastian?

    Yes, you can often find last-minute deals on Ontario to San Sebastian flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Ontario to San Sebastian flight deals updated?

    The Ontario to San Sebastian flight deals you see on this page were last updated on 4/25.

See more FAQs

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.

Alternative routes for Ontario to San Sebastian
See prices for flight routes from nearby airports that may be better suited for you.

San Francisco to Bilbao flights
Los Angeles to Bilbao flights
Los Angeles to San Sebastian flights
San Francisco to San Sebastian flights
Ontario to Bilbao flights
San Diego to Bilbao flights
San Jose to Bilbao flights
Reno to Bilbao flights
Santa Ana to Bilbao flights
Burbank to Bilbao flights
Reno to San Sebastian flights
Santa Ana to San Sebastian flights
Oakland to Bilbao flights
San Jose to San Sebastian flights
Sacramento to Bilbao flights
Oakland to San Sebastian flights
Fresno to San Sebastian flights
Seattle to Las Vegas flights
Nashville to Knoxville flights
New York to Canada flights
USA to Pakistan flights
Los Angeles to Las Vegas flights
New York to Italy flights
Newark Airport to San Diego flights
Minneapolis to San Francisco flights
Pittsburgh to Miami flights
Chicago to Toronto flights
Phoenix to Cancún flights
Ontario to Wenatchee flights

Search flights from Ontario to San Sebastian by cabin class

Find flights from Ontario to San Sebastian, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
Business Class
Prem Econ Class
Economy Class

Book a flight to one of these trending destinations

User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations
Flights to Perugia Sant Egidio
Flights to Biarritz Parme
Flights to Argostoli Cephalonia
Flights to Melilla
Flights to Milas–Bodrum
Flights to Girona Costa Brava
Flights to Fez Sais
Flights to Zakynthos Dionsios Salomos
Flights to Bourgas
Flights to Bodø
Flights to Reggio Calabria Tito Menniti
Flights to Bastia Poretta
Flights to Skiathos
Flights to Kalamata
Flights to Batumi
Flights to Menorca/Mahon
Flights to Kristiansand Kjevik
Flights to Champaign University-Willard
Flights to Kagoshima
Flights to Ohrid
Flights to Clermont-Ferrand Aulnat
Flights to Parikia Paros
Flights to Lanzhou Arpt
Flights to Mason City

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?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to San Sebastian from Ontario today with Cheapflights!

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?

Certainly. Search results for flights to San Sebastian from Ontario shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Not ready to book yet? You can track prices for flights from Ontario to San Sebastian on Cheapflights with our Price Alert feature and get notified when better prices are available.

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.
View all available airlines