$486 Find Cheap Flights from Spain to Ontario

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Ontario departing on 9/20. 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.
1 adult

KAYAK searches hundreds of travel sites at once for deals on flights to Ontario

 
These are the airlines KAYAK users have selected most often from within our search results for flights to Ontario, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to Ontario, as well as popular online travel agencies
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Flights Deals

Cheap Flight Deals from Spain to Ontario

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Spain to Ontario 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.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Spain to Ontario

Wed, Jun 11 - Thu, Sep 11
British Airways Logo
12:40 pm - 11:02 pmMAD-ONT
19h 22m1 stop
British Airways Logo
3:00 pm - 5:40 pmONT-MAD
17h 40m2 stops
$622British Airways
Find Deal
Thu, Sep 4 - Thu, Oct 16
Delta Logo
6:00 am - 10:41 pmMAD-ONT
25h 41m2 stops
Delta Logo
7:00 am - 4:45 pmONT-MAD
24h 45m2 stops
$626Delta
Find Deal
Fri, Sep 12 - Tue, Sep 30
Iberia Logo
4:00 pm - 11:36 pmMAD-ONT
16h 36m1 stop
Iberia Logo
3:00 pm - 2:20 pmONT-MAD
14h 20m1 stop
$648Iberia
Find Deal
Wed, Sep 3 - Fri, Sep 12
Iberia Logo
4:00 pm - 11:36 pmMAD-ONT
16h 36m1 stop
Iberia Logo
3:00 pm - 2:20 pmONT-MAD
14h 20m1 stop
$651Iberia
Find Deal
Thu, Sep 4 - Fri, Oct 3
American Airlines Logo
1:00 pm - 8:01 pmMAD-ONT
16h 01m1 stop
American Airlines Logo
3:00 pm - 2:20 pmONT-MAD
14h 20m1 stop
$652American Airlines
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Fri, Jul 18 - Thu, Jul 24
American Airlines Logo
4:00 pm - 10:57 pmMAD-ONT
15h 57m1 stop
American Airlines Logo
10:53 am - 9:05 amONT-MAD
13h 12m1 stop
$736American Airlines
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Fri, Sep 5 - Wed, Sep 10
United Airlines Logo
12:10 pm - 10:30 pmBCN-ONT
19h 20m2 stops
United Airlines Logo
5:10 am - 7:50 amONT-BCN
17h 40m2 stops
$754United Airlines
Find Deal
Sun, Jun 8 - Thu, Jul 24
United Airlines Logo
12:45 pm - 9:04 pmMAD-ONT
17h 19m2 stops
United Airlines Logo
5:05 am - 6:40 amONT-MAD
16h 35m2 stops
$758United Airlines
Find Deal
Fri, May 30 - Tue, Nov 11
 Logo
12:15 pm - 9:04 pmBCN-ONT
17h 49m2 stops
 Logo
7:00 am - 9:35 amONT-BCN
17h 35m2 stops
Fri, Sep 19 - Sat, Oct 11
 Logo
12:45 pm - 8:33 pmMAD-ONT
16h 48m2 stops
 Logo
5:10 am - 6:40 amONT-MAD
16h 30m2 stops
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KAYAK's insights & trends for flights to Ontario

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

How long is the flight to Ontario?

The duration of your flight to Ontario depends on your departure and arrival airports. Obviously, any flights that include a layover will also be longer. The most popular routes to Ontario on KAYAK are from Madrid, which takes 12h 05m, Barcelona, which takes 13h 05m, Málaga, which takes 15h 35m, and Palma de Mallorca, which takes 15h 50m.

How many direct flights to Ontario are there each day?

There are around 90 direct flights from within Spain to Ontario every day. Most flights depart in the morning, with 7:00 am the most common departure time and 48% of flights departing in the morning.


Good to know

Cheapest flight$486
Flight from Barcelona to Ontario

FAQs - booking Ontario flights

  • How far is Ontario Airport from central Ontario?

    Central Ontario is 3 miles away from Ontario Airport.

  • What is the name of Ontario’s airport?

    Ontario is served by Ontario Airport, also commonly referred to as Ontario or Ontario Intl. The airport code is ONT.

  • What is the cheapest day to fly to Ontario?

    Based on KAYAK data, the cheapest day to fly to Ontario is Monday where round-trip tickets can be as cheap as $914. On the other hand, the most expensive day to fly is Thursday, where round-trip prices are $1,412 on average.

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

    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 to Ontario.

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

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

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

    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 to Ontario 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 to Ontario?

    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 to Ontario 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 Ontario?

    The cheapest time of day to fly to Ontario is generally in the morning, when round-trip flights cost $983 on average. The most expensive time of day to fly to Ontario is generally in the morning, which is peak travel time and where the average cost of a ticket is $983.

  • How many direct flights to Ontario are there each week?

    Each week there are around 630 direct flights from within Spain to Ontario. The most common day for departures is Sunday, with 16% of flights taking off on this day.

Top tips for finding cheap flights to Ontario

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Ontario flight deals.

Top airline flying from Spain to Ontario

 
See real verified KAYAK customer reviews for airlines flying to Ontario. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Spain to Ontario. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to Ontario? 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.
7.0
IberiaOverall score based on 2706 reviews
6.6Entertainment
6.7Comfort
7.1Boarding
6.3Food
7.6Crew
Airline reviews

I had a great experience , crew was great and enjoyed the entertainment options I will be booking my next International trip with them .

10.0 ExcellentRosa, May 2025LHR - ORD
Read more Iberia reviews

I had a great experience , crew was great and enjoyed the entertainment options I will be booking my next International trip with them .

Front desk was closed at 6 pm, I was unable to get my boarding pass and as such missed my connecting flight home.

I wish they could put the pre-tsa check on the tickets or global entry.

We upgraded to Business class paying approx. $1,300. Despite the upgrade, we were still required to pay an additional €70 for a checked bag. Furthermore, we were informed that another €70 would have been charged for our carry-on bag, as it was 3kg over the limit. To avoid this, we had to move clothing from the carry-on into the checked bag, which was both inconvenient and frustrating. Given the significant amount paid for the Business Class upgrade, we found this treatment to be quite appalling and disappointing. We expected a higher level of service and consideration for our luggage, and this experience did not meet those expectations.

At Barcelona, you have to get your passports checked before going to the E gates so give yourself time for that. The restaurants around the D and E gates are really limited compared to prior to passport control. On boarding, the gate staff tried to charge me EUR100 for my carryon, saying it was too big. I put it in their ‘measurement box’ and it fit with the top slightly protruding where the handle was. The gate staff then said my bag was ok to carry and put an ‘approved’ tag on my bag. I was bussed to the plane I boarded a ‘Level’ carrier which I had not heard of before. If you booked through a code share like American, you will be served food and alcohol on the plane. They do not provide complimentary ear phones or blankets. The internet was free but only for texting. WhatsApp worked but Spotify did not. Entertainment choice was adequate, movies were old and selection was limited. On arrival at LAX, my checked in bag was damaged as the wheel was broken. I am taking this up with Iberia. Their website and customer service was moderate in terms of user friendliness. You have to have all your documents and prepared to be patient and persistent. Let’s see how this goes. All n all, for the price I paid, I would recommend Level.

Was very unhappy with the entire process, from check in to boarding to the comfort of the flight. Did not enjoy the flight on Level.

Overall a great. However, the seating is way too narrow, for guys with any shoulder width. Luckily the crew moved the guy next to me, or it would have been miserable.

The staff on our flight from Charlotte to Boston were very friendly.

Alaska located my mother, aware that she had mobility issues and they seated her closer to the door. She and I were seated together so I felt more secure to be able to assist her. The desk attendant reviewed what steps to take when boarding. Allowed us to board first, we loved that. I was allowed time to help her board slowly, seat her, put all her things in their place before the crowds came through. These small details made me want to travel Alaska more when possible.

The flight was decent. I purchased my flight through Iberia, traveling with my elderly mother with mobility issues. I try to pay for luggage and seats online prior but Iberia website directs me to AA website. AA airlines website does not recognize the record locator. My mother and I are separated and each get a middle seat. She is seated the furthest away from a bathroom. I had to sit behind her to see her wave at me to use the bathroom. Lights out on the flight and I could not see her wave and she is not tech savvy to push an attendant button even though I showed her how. The attention to this detail puts AA at the bottom of my list when traveling with my elderly mother. Bad execution and handling when servicing those with extra needs due to mobility. I could not get her to the bathroom because she’s slow and she had to wait for me to get up from my middle seat then move her out of her middle seat. She had an accident which required that I hel her clean up before taking her back to her seat.

Everything you need to know for your flight to Ontario

Information on the airport you'll fly into in Ontario

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