ONT - MAD

$338 Find Cheap Flights from Ontario to Madrid

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 Madrid departing on 10/2. 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
1 adult, Economy

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

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Madrid, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Madrid, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flights Deals
Useful Info
Flights Deals

Cheap Flights from Ontario to Madrid (ONT-MAD)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Madrid 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 Ontario to Madrid

Sun, Aug 3 - Thu, Sep 11
KLM Logo
7:05 am - 9:35 amONT-MAD
17h 30m1 stop
KLM Logo
10:05 am - 7:15 pmMAD-ONT
18h 10m1 stop
$402KLM
Find Deal
Sun, Oct 26 - Thu, Nov 13
Delta Logo
6:00 am - 8:00 amONT-MAD
18h 00m2 stops
Delta Logo
10:00 am - 10:41 pmMAD-ONT
21h 41m2 stops
$407Delta
Find Deal
Tue, Oct 21 - Fri, Nov 7
Delta Logo
7:00 am - 9:35 amONT-MAD
17h 35m1 stop
Delta Logo
11:00 am - 11:24 amMAD-ONT
33h 24m1 stop
$408Delta
Find Deal
Mon, Sep 22 - Tue, Sep 30
Air Canada Logo
6:38 pm - 6:40 amONT-MAD
27h 02m3 stops
Air Canada Logo
12:45 pm - 12:51 pmMAD-ONT
33h 06m3 stops
$488Air Canada
Find Deal
Mon, Sep 22 - Tue, Oct 7
United Airlines Logo
5:10 am - 6:40 amONT-MAD
16h 30m2 stops
United Airlines Logo
12:45 pm - 10:42 pmMAD-ONT
18h 57m2 stops
$497United Airlines
Find Deal
Mon, Oct 27 - Thu, Nov 6
Iberia Logo
10:57 am - 2:15 pmONT-MAD
19h 18m2 stops
Iberia Logo
1:00 pm - 10:00 pmMAD-ONT
18h 00m1 stop
$501Iberia
Find Deal
Mon, Oct 27 - Thu, Nov 6
United Airlines Logo
7:00 am - 9:15 amONT-MAD
18h 15m2 stops
United Airlines Logo
11:15 am - 9:35 pmMAD-ONT
19h 20m2 stops
$502United Airlines
Find Deal
Sun, Aug 3 - Fri, Sep 5
Air Canada Logo
5:05 am - 8:20 amONT-MAD
18h 15m2 stops
Air Canada Logo
12:45 pm - 8:43 pmMAD-ONT
16h 58m2 stops
$504Air Canada
Find Deal
Tue, Oct 21 - Thu, Nov 6
Iberia Logo
12:51 pm - 2:20 pmONT-MAD
16h 29m1 stop
Iberia Logo
7:40 am - 11:45 pmMAD-ONT
25h 05m2 stops
$518Iberia
Find Deal
Sat, Sep 6 - Tue, Sep 23
British Airways Logo
2:54 pm - 9:05 amONT-MAD
33h 11m1 stop
British Airways Logo
12:40 pm - 6:54 pmMAD-ONT
15h 14m1 stop
$533British Airways
Find Deal
Useful Info

KAYAK's insights & trends for Ontario to Madrid flights

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

What’s the cheapest day of the week to fly from Ontario to Madrid?

The average price of all round-trip flights from Ontario to Madrid clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Ontario to Madrid, look for departures on Wednesdays and avoid leaving on a Saturday, as it's usually the priciest day. When flying back from Madrid, Monday is the cheapest day to fly and Thursday is the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Ontario to Madrid, 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 Madrid is February, where tickets cost $573 (return) on average. On the other hand, the most expensive months are May and June, where the average cost of round-trip tickets is $1,284 and $1,266 respectively.

How far in advance should I book a flight from Ontario to Madrid?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Ontario to Madrid, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Ontario to Madrid, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 25 weeks before departure.

Good to know

Low seasonMarch
High seasonNovember
Cheapest flight$338
Best time to beat the crowds with an average 23% drop in price.
Most popular time to fly and prices are also 6% lower on average.
Flight from Ontario to Madrid

When to book flights from Ontario to Madrid

Are your dates flexible? Find out the best times to travel from Ontario to Madrid based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Ontario to Madrid

  • What is the cheapest flight from Ontario to Madrid?

    In the last 3 days, the lowest price for a flight from Ontario to Madrid was $338 for a one-way ticket and $402 for a round-trip.

  • Do I need a passport to fly between Ontario and Madrid?

    A passport is required to fly from Ontario to Madrid.

  • Which aircraft models fly most regularly from Ontario to Madrid?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Ontario to Madrid?

    Star Alliance, SkyTeam, and oneworld are the airline alliances operating flights between Ontario and Madrid, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from Ontario to Madrid, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Ontario to Madrid are Delta and United Airlines. With an average price for the route of $873 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $590 and an overall rating of 7.4.

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

    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 Madrid.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Madrid from 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 from Ontario to Madrid?

    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 Madrid with an airline and back to Ontario with another airline. Booking your flights between Ontario and MAD can sometimes prove cheaper using this method.

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

    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 Madrid from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 5 airlines serving from Ontario to Madrid

 
See real verified KAYAK customer reviews for airlines flying from Ontario to Madrid. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Ontario to Madrid? 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 7951 reviews
7.3Food
8.5Crew
7.9Entertainment
8.2Boarding
7.9Comfort
Airline reviews

I'm a tall guy and even the seats with more leg room were not as comfortable as I had hoped.

10.0 ExcellentDaniel, Jul 2025ATL - MAD
Read more Delta reviews

I'm a tall guy and even the seats with more leg room were not as comfortable as I had hoped.

My husband upgraded our seats and I don't know if it was due to the type of planet was or if they didn't upgrade our seats. We were supposed to be in I believe comfort seats and they were just as tight as any other seat- no leg room and we are very tall people but at least it wasn't extremely cold. My husband did put in a complaint about our seating because he paid extra and if we would have known that the space and the tightness would have been the same, we just would have gotten the emergency row emergency row seats that we normally get. We love Delta but both our flights coming home we're not good. Oh I forgot to mention that on our flight to Hawaii our luggage wheels got broke and we had to purse new luggage on vacation then we never had this problem so we didn't know protocol and reported it after we got home only for them to tell is we only had 24hrs to report the damage. Not sure what was going on with Delta this vacation trip.

Crew was excellent. Comfort seats not as nice as other kinds of planes.

It was a great flight and the stewards and stewardess were all kind and accommodating!! The seats were comfortable and entertainment screen excellent!

There are 4 flights in consecutive gates with about the same departure time. Two flights were boarding at the same time. One was delayed or boarding would be happening at the same time. I am not sure what Delta and LAX need to do to have a better layout at the end of Terminal 2

There was a security issue at the airport and we were unable to land. We circled endlessly and then landed at another airfield for fuel. We then circled the airport again, almost landed but didn’t fully touch down before circling again. I am thankful to the crew for keeping us safe- the issue was the airline and staff at the airport getting us seats on our connecting flights. That part was hours of searching for someone and getting in double my steps.

Overall, aside from the baggage issue, it was as good as one expects.

Most aspects were good however if they assign boarding zones they ought to enforce them or why bother? My luggage from SAN-JFK-MAD was lost in NY so I without my main bag for two days upon arrival in Spain. They were helpful in tracking it and eventually delivered it to my hotel. The flub was because of a delay upon arrival in NYC. I had booked 2 1/2 hours between flights but we had to hold on the taxiway for an hour after landing while waiting for a clear gate which likely caused the baggage error.

Excellent flight, the planes were newer, they did a nice job with boarding, great service overall.

It would be nice if was given wires ear buds. Overall was a good experience was able to sleep on the plane

Everything was great. Only thing that could’ve made it better was buy on board options for hot food, but the snacks were decent. The flight attendants were great. I had no complaints. I was able to make it to my destination safely

Boarded plane and then delayed 1.5 hours while on the plane

Horrific. They missed my connecting flight to San Diego. I didn’t get there until Monday at 9am when I had a mandatory court settlement conference scheduled at 6am since we had parties on the east coast. This caused many issues. All because United apparently forgot to hold the doors open until my flight landed that only had a 10 minute delay. This was the last flight to Southern California. So I couldn’t even rent a car to finish the trip. United cannot be trusted when traveling on specific days and times since weather didn’t have anything to do with the delays.

Really good 😊 the woman at the gate entrance was a little rude checking in our carry-on but i dont think she worked for the airline, she worked for the airport at sacramento, other than that amazing.

it was so bad. I tried to board my flight from vancouver to saskatoon. And to my surprise they did not board me cause the flight was changed and no email was send to me. and on my boarding pass which i got from seattle says different flight. I did not knew anyone from Vancouver, air canada crew was rude, i asked for today flight but they were rude and i had early morning dental appointment in saskatoon. I was so much in pain and my whole day is wasted today. and i suffered alot. They did provide me hotel but they did not provide me any food. I am really really disappointed first time had so bad experience with air canada. I may think twice to book it again. If i can get any reply or any composition that would be great. Thanks

Very comfortable (upgraded to business class). The audio on my screen didn’t work, but I managed to play the audio through my phone while watching the screen.

The food was the worst I’ve had on any flight I’ve ever been on.

I was supposed to be on business class at first class from Denver back to Miami due to weather changes. I missed my connection and it’s put on a flight to Fort Lauderdale. Instead of honoring my business class/1st class ticket, they put me in coach, but there were two first class seats open. I think it’s absolutely disgusting that I paid for first class $1300 ticket and they put me in economy and they had to open seats available and I have still not been refunded the difference. I ended up having to eat a snack box instead of the meal I was supposed to get and did not get home till 2 AM so I think that’s a little pathetic that I had to live off crackers for dinner And my poor dog ate some cheese and salami. Oh yes, apparently when they switched me to the new flight they forgot to mention I had a service dog

Flight was late as pilot crew had to land at different airport in their previous flight. Passengers boarded and had to wait for pilots inside plane. Series of incomplete and unnecessary announcements by an annoying voice, rather than complete, informative announcements.

Breakfast was not loaded at SFO due to catering company change. Seems like a major airline at a major hub would have thought of something else or warned passengers to pick up food before boarding a 3 hour flight.

AA re-routed flight from HNL to LAX due to delay. My group of 3 with reserved seats in row 9 was broken up, with one assigned to a middle seat, another in the last row of the plane. Not happy. No explanation to the delay. No apologies. No compensation. Would have been nice to be offered an Admiral Club admission or a voucher for the extra 3 hours of layover in LAX. Could not hear the boarding gate announcements in LAX. Adjacent gate was boarding at the same time. Loud speakers were competing against each other. Barely made my boarding group.

The flight delay in Dallas created a domino effect that impacted all of the connecting flights. It also increased the number of connections. I missed my flight from Casablanca to Marrakech because of the tight turnaround when landing in Casablanca. . CMN airport was understaffed. Only one person could help while other employees were just watching him. It was an extremely frustrating situation. People were crying and slamming their palms on the counter when speaking to the customer service provider, Allabough (man’s name?). Allabough couldn’t change my flight in the system. simultaneously, I was on the call with America. Airlines customer service rep named Solomon that said he couldn’t change it either. So, I took a ONYA voyages train to from Casablanca to Marrakech to get there on Friday June 26. This was unpredictable trip.

Almost a 6 hour flight and the only food option is a cheese plate… and chips. Also how is it there are no options for texting on American. I’ll be going back to delta and united.

Bad food, small seats that didn’t recline. I thought I was buying a quantas ticket so I feel like I got scammed

The chair cushions may need an upgrade. I have been noticing they are so worn out, thin so you’d sit in a dip 😄. Other than that, all was an enjoyable trip. Thanks AA!

Cramped seats. FAA should make airlines have more legroom, for even short people complain

Flight was full, and would have preferred an aisle seat, but due to getting a late ticket ,the seat I had was adequate. The flight crew were very help full and hard working. Food and drink were excellent for the 11hr flight. Overall I was pleased with flight, and would recommend British Airways again.

No entertainment yatem in flight at seat 51H. Would not shut down either leaving a self moving and openin and changing menus with changes in colors,images brightness levels sort of the type when you get sleep deprivation and image overload when being tortured during an interrogation. 8 hours worth of it. Unable to place backpack underneath seat on that chair. One female stewardess was excellent as she gave up her carryon's space for my backpack but the rest of the iberia crew were very sharp an chtting during the whole flight. The plane did not have hot water so nobody had coffee nor tea. The plane was not up to par to be flying.

Eventless. It was a good flight and good crew. Can’t complaint.

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

Boarding on the buses isn’t efficient. Overall, it was great.

BEWARE!!! Iberia changes your seats at random. I paid for a window seat and they changed it to one in the middle aisle resting against the bathroom- can’t lean back + hear every flush. This on a 11 hour flight.. There were families that were broken up with separate seats all over the plane. Lots of upset passengers showing their seat confirmation to the besieged and helpless airline steward. Also, the gluten free meal was tasteless.

Iberia airlines was late on every flight I had. It was very difficult to communicate in English with iberia airlines and airport employees.

ground crew and check-in was pathetic - insisted on charging me for luggage even though the ticket said it was already included. They also accidentally sent my luggage through without a luggage tag and had to retrieve it. Generally, it was like a bad movie.

The app on phone and the online check in is not good, it would not give me the option of Spain or Madrid City in the drop down menu and I couldn't move forward with online check in.

Well my luggage was damaged and they lost the plastic cover. I need to file a claim and I would like for someone to follow up with me on this. Thanks.

Not having to check carry on bags when plane wasn’t full. (The told us it was)

Service and food were excellent, could have been more info in English.

I was in business class for the 8 hour flight where: 1. The WiFi did not work 2. The entertainment system did not work 3. We were told there were no hot drinks for the entire flight

I had an issue with the name on my ticket vs my passport name. I was very upset that the Iberia ticket clerk had no authorization to help me and I was left to fix it. It took 19 calls of persons promising to accomplish and not doing anything before I reached someone who helped me in 10 minutes. Two of them even hung up on me. I missed my original flight because of this. Terrible customer service.

I was transferred to an American Airlines flight. The boarding was late and unorganized. The seating was extremely tight and uncomfortable. Will not use AA again.

The check-in of my luggage was terrible. When purchased my tickets, one luggage and one carry-on was part of the fight. My flight was switched from British to American Airline. During check-in of luggage at the airport, I was denied and had to pay extra $75. How do I get reimbursed for this extra luggage payment?

This was the second time on BA, food terrible, bathrooms gross,( granted, that was mostly due to the disgusting children urinating all over it)boarding was late and disorganized. No gate issued until last minute st Heathrow, bad system, caused undue stress. Seats were painful, that's what you get for traveling like a poor in economy, right BA? Should have been able to afford business or first class if you want to actually be able to walk upright without back pain after a trip.

The delay was not communicated via text and the person who helped with check in also didn’t inform me about the delay. I ended up missing my connection and it was a waste of 5 hours. The crew didn’t mention there would be someone at the gate informing of if I would be rebooked and there was no signage. Overall a very poor experience. The British Airways app was also very buggy, and didn’t work. I will avoid flying with British Airways when possible.

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!?

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.

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

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.