$416 Find Cheap Flights from Ontario to Spain

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to Spain departing on 9/21. 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.
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Best Spain Flight Deals from Ontario

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Madrid
Madrid2 stops$500
Málaga
Málaga2 stops$841
Seville
Seville2 stops$1,669
Valencia
Valencia2 stops$3,731
Ibiza
Ibiza2 stops$1,300
Bilbao
Bilbao2 stops$1,468
Alicante
Alicante2 stops$1,766
Madrid
Madrid2 stops$500
Málaga
Málaga2 stops$841
Seville
Seville2 stops$1,669
Valencia
Valencia2 stops$3,731
Ibiza
Ibiza2 stops$1,300
Bilbao
Bilbao2 stops$1,468
Alicante
Alicante2 stops$1,766

Cheap Flight Deals from Ontario to Spain (ONT-ES0)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Spain that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from Ontario to Spain

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Ontario to Spain.
Discover the best prices for you by selecting your travel dates on KAYAK.
Delta Logo
6:00 am - 3:35 pmONT-MAD
24h 35m2 stops
Delta Logo
10:05 am - 10:41 pmMAD-ONT
21h 36m1 stop
$500Delta
Find Deal
Tue, Oct 7 - Fri, Oct 24
 Logo
8:44 am - 2:20 pmONT-MAD
20h 36m1 stop
 Logo
4:00 pm - 12:02 amMAD-ONT
17h 02m1 stop
Tue, Oct 7 - Fri, Oct 24
Iberia Logo
10:55 am - 9:05 amONT-MAD
13h 10m1 stop
Iberia Logo
4:00 pm - 12:02 amMAD-ONT
17h 02m1 stop
$537Iberia
Find Deal
Tue, Oct 7 - Tue, Oct 21
United Airlines Logo
5:10 am - 6:40 amONT-MAD
16h 30m2 stops
United Airlines Logo
12:45 pm - 12:32 pmMAD-ONT
32h 47m2 stops
$538United Airlines
Find Deal
Tue, Oct 7 - Tue, Oct 21
United Airlines Logo
7:00 am - 8:05 amONT-MAD
16h 05m2 stops
United Airlines Logo
12:45 pm - 10:30 pmMAD-ONT
42h 45m2 stops
$543United Airlines
Find Deal
Wed, Oct 15 - Tue, Oct 21
Iberia Logo
3:00 pm - 8:25 pmONT-BCN
20h 25m2 stops
Iberia Logo
12:20 pm - 9:56 pmBCN-ONT
18h 36m1 stop
$545Iberia
Find Deal
Tue, Sep 23 - Fri, Oct 3
British Airways Logo
10:55 am - 9:05 amONT-MAD
13h 10m1 stop
British Airways Logo
4:00 pm - 12:02 amMAD-ONT
17h 02m1 stop
$595British Airways
Find Deal
Tue, Oct 7 - Thu, Oct 23
British Airways Logo
11:59 pm - 9:05 amONT-MAD
24h 06m1 stop
British Airways Logo
12:10 pm - 9:40 pmMAD-ONT
18h 30m2 stops
$664British Airways
Find Deal
Thu, Oct 16 - Wed, Oct 22
American Airlines Logo
10:54 am - 10:10 amONT-BCN
14h 16m1 stop
American Airlines Logo
12:20 pm - 6:53 pmBCN-ONT
15h 33m1 stop
$1,250American Airlines
Find Deal
Sat, Jun 28 - Wed, Jul 23
American Airlines Logo
2:44 pm - 5:05 pmONT-LCG
17h 21m2 stops
American Airlines Logo
1:40 pm - 11:43 pmLCG-ONT
19h 03m2 stops
$1,665American Airlines
Find Deal
Mon, May 19 - Fri, May 23
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KAYAK's insights & trends for Ontario to Spain flights

Get data-powered insights and trends into flights from Ontario to Spain to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Ontario to Spain?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Ontario to Spain, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Ontario to Spain is January, when tickets cost $580 (return) on average. On the other hand, the most expensive months are May and June, when the average cost of round-trip tickets is $1,205 and $1,144 respectively.


Good to know

Low seasonJanuary
High seasonJune
Cheapest flight$416
Best time to beat the crowds with an average 31% drop in price.
Most popular time to fly with an average 42% increase in price.
Flight from Ontario to Madrid

FAQs - booking Spain flights

  • How does KAYAK find such low prices on flights from Ontario to Spain?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ontario to Spain.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to Spain?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Ontario to Spain is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Ontario to Spain?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Ontario to Spain with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario to Spain?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Ontario to Spain up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Spain?

    The cheapest time of day to fly to Spain is generally in the evening, when round-trip flights cost $894 on average. Morning departures are around 10% more expensive than evening flights, on average. The most expensive time of day to fly to Spain is generally at night, which is peak travel time and where the average cost of a ticket is $1,083.

Top 5 airlines serving from Ontario to Spain

Need help choosing which airline to fly with from Ontario to Spain? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
DeltaOverall score based on 7934 reviews
7.9Comfort
7.3Food
8.5Crew
7.9Entertainment
8.2Boarding
Airline reviews

Delta flight was on time, seats were comfortable, and crew was nice.

8.0 ExcellentAnonymous, Apr 2025LAX - DEN
Read more Delta reviews

Delta flight was on time, seats were comfortable, and crew was nice.

Bathrooms dirty sinks clogged. No one seemed to clean them. Plane very old

Thank you for not flipping the plane on the run way. You guys get a 5 star rating for the flight!!!

Boarding is, as it always is… horrible. Gate lice. Slow moving zones. Too many people with carry ons

It was terrible, if they ran flights on time it would make a big difference.

Delta seems to be improving in many areas, except they are super bad with the food available. Bring back normal food service on long flights.

I actually received a notification from kayak on email but not one by text from Delta when my departure gait changed and I almost missed my flight

New boarding doesn't make sense. Filling front first is slow.

Delta flight was great from the check in all the way to arrival. However, I had a very bad experience. I requested a wheelchair and the wheelchair employee that went to pick me up from the plane in Boston to bring me to the baggage claims told me I have to pay him. I was under the impression that it was a free service and I usually give tips but the person forced me to pay and since I said no because I was upset with his demand when my daughter walked in to pick me up he demanded payment from my daughter who paid him thinking maybe now it is a charged service.

Horrible. Grateful to be alive but spent 13 hours at airport only to return back to my familys house and flight changed to next day. They tried to fix a part on plane, had no back up plane and after 10 hours , reattempted the flight and it STILL wasn't fixed. We got a meal voucher and rescheduled flight but there should be some other compensation for the 15 hours spent in airport

Everything is good except the dinner and breakfast. The sandwich is very delicious. Toilet is clean, I only use one of them. Flight attendants are very nice. 👍👍

The gate was too far away for the connecting flight

Compared with other carriers business class for an overnight was not worth the extra expense.

Seats were comfortable. It’s was so cold and very uncomfortable. I paid 2000 miles for wifi service that was choppy the whole flight. Would like to be reimbursed for my miles Food was so disappointing. Three cold and terrible meals for $3000 round trip. This needs to be better.

Easy to board. Flight was super crowded though so I didn't sleep well on that cross country red-eye flight. The aisles seem ot have gotten narrower and the seat smaller whn luggage and people are getting bigger so it would be AWESOME to have more space and breathing room in general ;)

Pilot Erika DeLong made us feel safe and at ease in a frankly scary time to be flying. Her warm smile and greeting and excellent command of the aircraft in foggy bumpy weather helped us all to calm our nerves and get us home safely.

Plenty of room for me and the cat in Premium Economy. Seat was comfortable. Boarding was a breeze. The lady at the special check-in desk was great, super helpful and professional.

Smooth flight. As always dinner could have been more generous. Breakfast was great.

AWFUL. I have had the experience of traveling with many airlines across the world, and hands down United Airlines is the worst. Not one flight was on time, and I don’t think I met one crew member or staff member who wasn’t rude.

Old and out of date plane, it seem like every time I fly with united there’s and issue. We were delayed,

Very helpful ground crew after an earlier flight delay and being rebooked on a different flight.

British Airways staff are very polite and willing to help.

The plane was late and then sat on the runway for almost 45 minutes before taking off.

We kept being told that the flight was full and that all overhead compartments were full and therefore had to check in our hand luggage. We were some of the last people to board and noticed that there was still sufficient space in the overhead compartments. We were obliged to check in hand luggage when there was space and so had to wait at luggage retrieval which took a while to then noticed damage to our luggage - not a great experience!

Worst seats I’ve ever had !!! The seats were very narrow and uncomfortable and misaligned with the seats in front of mine leading to bottom of the seat in front of mine pressing on my legs for 15.5 hours !

This was an overnight flight. There was no meal service in first class, just a simple snack basket was offered along with beverages. There should have been some type of continental breakfast prior to arrival in PHL. As an Executive Platinum American Airlines Advantage member, I received no name recognition from the first class flight attendant. When disembarking at PHL, the flight attendants were more interested in their cell phones than saying "thank you" to the passengers as they disembarked.

The flight was quick and to the point. The crew just did their job w/o excessive talking and everything was just perfect.

Awkward carry on process. Forced to check all carry on. No overhead space of worthiness. Left delayed, but made up the time. Crew was amicable.

Amazingly comfy flight - I had upgraded for a reasonable price and it was worth it. The food also was good.

Had to wait on pilot and crew to depart and had to wait to arrive at the gate because they only had 2 crews working. Delays, delays....Planes just keep getting smaller and tighter and they nickle and dime for everything. When will an airline actually wake up and make flying more enjoyable?

Flight from Costa Rica to Madrid was excellent. Good food and service. The flight from Madrid to Brussels was very poor . No food , no entertainment, no usb … Total package was quite expensive so you should give same service on the second flight

We travelled with Level, which is a subsidiary of Iberia. They mixed up all our seats, downgraded few from premium economy fo economy. The crew were not professional, they seem to be in a rush! Also some with an attitude

business class food was pretty average otherwise it was a good experience

Everything OK , except the plane left more than an hour late so I couldn’t participate in an excursion I had that morning in Brcelona

Flight from Madrid to Dakar had no onboard entertainment for a business class. Not even a single screen . That was disappointing. The WiFi only worked for the first 45 mins of the flight.

I paid to upgrade to Business Class. The queue to check in at the Business Class aisle was full of people without Business Class tickets, the fast-track immigration line was “closed” but the representative opened it up for his friends, regardless (there was a lot of fist-bumping), and the lounge was an absolute mess…..4 staff sitting playing with their phones while every table had dirty plates and glasses waiting to be cleared…..and the least said about the rude lady on the reception desk at the lounge , the better!

very good all round. staff, food, entertainment, punctuality all very good

Great flight, short and good attention. Didn't took any food so can't say thing about it

A 13 hour flight with no food apart from what they offered from a menu you had to pay for. On top of that, there were no blankets, so during the flight when the cabin temperature dropped, everyone was very cold. Neither of these things were highlighted at the time of booking. This is the worst long-haul flight I’ve ever encountered.

Horrible. Paid for seats for my family. Iberia changed planes and never notified us that the seats we paid extra for did not even exist on the plane. We were randomly placed on the plane. Thankfully, we were seated together. Upon boarding, my youngest daughter was pulled from the line and they just arbitrarily changed her seat 7 rows back from the rest of the family. I had to wait at the gate while they tried to see us back together. One of the most uncomfortable small spaces on a plane I’ve ever experienced. When I called Iberia, they first told me that no mistake was made that the plane was never changed. Yet my receipt for my paid seats were for rows that did not even exist on this type of plane we were getting on. They said that they would reimburse my money and I would get an email, but I’ve never received any information or emails regarding a refund for the seats that I had paid extra for. Then when we arrived in Madrid, one of the pieces of luggage that we had checked in was damaged to the point that the handle that was stowed in to the luggage was broken off by the crew members handling the luggage. The crew on the plane was very nice, but as far as the rest of the experience, I would be very hesitant to ever use Iberia again.

The airplane was old. Some things didn’t work out of middle seat was broken. The rest was OK.

Cancelled flight minutes before boarding. Rescheduled flight was two days later

The flight attendants were EXTREMELY personable and appreciated the service, lights going off after dinner (probably the norm, but I haven’t flown evening overnight flights in a while). Thank you!

Business class seats were very dated on my plane. Very little storage, charging ports were not easily accessible, tv screen kept flopping away. Vegetarian food was disappointing: hardly any protein and severely under-seasoned. Crew was lovely.

A basic tea/ coffee and a snack could be provided especially for long distance flyers.

The food was pathetic. There wasn't much leg room and recline space for such a long flight. No tea/ coffee for a 2-3 hour connecting flight without purchasing! Really!?

Very long and took extra push back to BA staff to get a realistic flight after they made me miss my original direct flight. Eventually landed 9 hours late and incurred many extra costs with other missed bookings

We found the bag drop/ check-in proceedure at T5 unnecessarily complicated. We paid extra for seat selection in advance and were allocated worse seats at T5. We found the check-in person was not particularly helpful although the the staff at the gate were super good.

I was charged fees for check in bags at the airport by British Airways. It was supposed to be no charge but Kayak messed up my booking apparently and I had to pay for check in bags. I paid $175.

The flight was okay, but legroom was tight for me and I’m only average height, although at 30” legroom is comparable with most other airlines. Not much room in the aisle either making the trek to and from the toilet difficult with passengers standing in the aisle. On the whole, it’s probably on a par with budget airlines and the ticket process extremely competitive.

Everything you need to know for your flight from Ontario to Spain

Information on your arrival and departure airports

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