ONT - MAD

$288 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 2/2. 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, 0 bags

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

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

Everything you should know

Cheapest round-trip
$431
Overall average: $574
British Airways
Wed 2/4Wed 2/11
ONT - MAD • 2 stops
Cheapest one-way
$288
Multiple Airlines
Mon 2/2
ONT - MAD • 1 stop
Top airlines
British Airways
Cheapest • from $431 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
October
Cheapest • 39% price drop
September
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Madrid!
Flight Deals
Booking Insights
Flight 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

Wed, Feb 4 - Wed, Feb 11
British Airways Logo
4:45 pm - 6:30 pm
ONT
-
MAD
16h 45m
2 stops
British Airways Logo
12:40 pm - 10:06 am
MAD
-
ONT
30h 26m
1 stop
$431British Airways
Tue, Feb 3 - Wed, Feb 11
British Airways Logo
4:45 pm - 6:30 pm
ONT
-
MAD
16h 45m
2 stops
British Airways Logo
12:40 pm - 10:48 pm
MAD
-
ONT
19h 08m
1 stop
$436British Airways
Sun, Feb 1 - Wed, Feb 11
British Airways Logo
6:00 am - 9:25 am
ONT
-
MAD
18h 25m
1 stop
British Airways Logo
12:40 pm - 10:48 pm
MAD
-
ONT
19h 08m
1 stop
$439British Airways
Sun, Feb 1 - Tue, Feb 10
British Airways Logo
4:45 pm - 8:00 pm
ONT
-
MAD
18h 15m
2 stops
British Airways Logo
1:00 pm - 10:48 pm
MAD
-
ONT
18h 48m
1 stop
$441British Airways
Mon, Feb 2 - Wed, Feb 11
British Airways Logo
11:59 pm - 9:25 am
ONT
-
MAD
24h 26m
1 stop
British Airways Logo
12:40 pm - 10:48 pm
MAD
-
ONT
19h 08m
1 stop
$442British Airways
Tue, Apr 14 - Tue, Apr 28
Multiple Airlines Logo
10:59 am - 2:25 pm
ONT
-
MAD
18h 26m
1 stop
Multiple Airlines Logo
7:35 pm - 1:18 pm
MAD
-
ONT
26h 43m
2 stops
$444Multiple Airlines
Mon, Feb 2 - Tue, Feb 10
British Airways Logo
3:09 pm - 9:25 am
ONT
-
MAD
33h 16m
1 stop
British Airways Logo
1:00 pm - 10:48 pm
MAD
-
ONT
18h 48m
1 stop
$445British Airways
Mon, Feb 2 - Wed, Feb 11
British Airways Logo
3:09 pm - 9:25 am
ONT
-
MAD
33h 16m
1 stop
British Airways Logo
6:05 pm - 10:07 pm
MAD
-
ONT
37h 02m
2 stops
$447British Airways
Tue, Feb 3 - Wed, Feb 11
British Airways Logo
12:57 pm - 6:30 pm
ONT
-
MAD
20h 33m
2 stops
British Airways Logo
6:05 pm - 10:07 pm
MAD
-
ONT
37h 02m
2 stops
$448British Airways
Sun, Feb 1 - Tue, Feb 10
British Airways Logo
4:45 pm - 8:00 pm
ONT
-
MAD
18h 15m
2 stops
British Airways Logo
4:45 pm - 10:48 pm
MAD
-
ONT
39h 03m
2 stops
$451British Airways
Booking Insights

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 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 October, where tickets cost $497 (return) on average. On the other hand, the most expensive months are May and June, where the average cost of round-trip tickets is $1,309 and $1,308 respectively.

Good to know

Low seasonNovember
Cheapest flight$288
Best time to beat the crowds but there is an average 7% increase in price.
Most popular time to fly and prices are also 16% 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 $288 for a one-way ticket and $431 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?

    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 American Airlines?

    The two airlines most popular with KAYAK users for flights from Ontario to Madrid are Delta and American Airlines. With an average price for the route of $873 and an overall rating of 7.9, Delta is the most popular choice. American Airlines is also a great choice for the route, with an average price of $1,243 and an overall rating of 7.2.

  • 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 4 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.
7.9
DeltaOverall score based on 8101 reviews
7.8Entertainment
8.1Boarding
8.5Crew
7.2Food
7.9Comfort
Airline reviews

Delta’s staff is unmatched. From the gate agents, to the pilots, to the flight attendants… all top of the industry.

10.0 ExcellentEric, Jan 2026
SFO - ATL
Read more Delta reviews

Delta’s staff is unmatched. From the gate agents, to the pilots, to the flight attendants… all top of the industry.

The flight was delayed for about 2 hrs. Other than it, it was good.

I am extremely disappointed that delta internal pilot manuals now refer to the Gulf of Mexico as the “gulf of America”. You can bow down to the Orange turd on your own. I will never fly delta again

No lunch on a x-country flight scheduled for 10:50 am departure, arrived 5+ hrs later. That requires a black box label before you pay for the tickets. Worst, when I checked in online, it's specifically said that lunch was served on his flight for economy Plus passengers.

Our flight from SFO to MSP was right on time on 11/15/2025. No delays. As we approached MSP at about 8 pm, we circled in the air until 8:40 pm so I don't call that efficient for MSP. I think the captain should announce the delay and why. (as if we all don't know that we are just circling around the area, slowing down, speeding up, slowing down.) Thank you. Marilyn Fischer

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

The flight used a B767 with a very old interior from before 2014. The entertainment system did not work at all during the flight despite attempts to reset the system. It was like they flew this route just to be competitive.

Delayed flight (1hour) plus a long layover after an overnight flight with no backup plane available.

Flight delayed for two and half hours and then canceled altogether due to mechanical issues. No mechanic onsite to fix so had to send one from LAX.

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

The entertainment options were at best, fair. It was exactly the same as my outbound flight. It would have been more entertaining if there were some series from Apple TV, HBO, Showtime or other carriers for me to catch up with.

The flight was on time and arrived early. The crew were friendly and helpful.

While I didn’t watch much tv I would have liked a few more options of TV series from Apple TV or hbo max ..

Overall experience was great. Flights were almost on time in departing and we arrived at our destination as scheduled. No issues with amenities or flight crew. Everything went well as as expected. Will fly again with American Airlines in the future!

The flight was very smooth and the meal in business class was great.

I requested a low sodium meal. Reason being, I take medicine for high blood pressure and I wear compression socks on long flights to help with leg swelling. Having less sodium in meals really helps me feel better on long flights. I received my initial low sodium meal after takeoff. Just before landing, the crew came through with the meal cart and offered me what was being served. I said no thank you and then noticed my low sodium meal in the meal cart, with my name and seat assignment on it. I motioned to the crew member, but he grabbed the meal cart and proceeded to move to the rear of the aircraft. He didn’t see me or other passengers who had attempted to get this attention. He was more concerned about completing meal service since we were due to land in under 45 minutes. I pressed the call light five times from my seat to receive help, but no crew member responded to me. So, I didn’t receive a second meal, one that I requested (the low sodium option). This led me to have a migraine from only eating one meal on an 11-hour flight. This is why I’m not a fan of flying US-based airlines overseas. The crew members continue to show the absolute worst customer service experience. I would not recommend flying American for overseas flights.

Not great. Booked Extra seats and got nothing extra at all. It’s basically a big budget airline.

Horrible. Both legs of my flight were delayed more than 6 hours. No compensation, no screens on the plane, and the plane was not clean.

The flight was smooth, the pilot kept us informed about delays and we arrived more of less on time

The flight was flawless and we even arrived between 20 and 25 minutes early!

It was fine, older plane with limited entertainment, otherwise fine.

the seats were so cramped you could barely move. it was difficult to eat when passengers would recline their seats. the seats were so flimsy and unstable that whenever someone got in and out of their seat, it bounced like a spring back in your face. the movies were nice. the food was terrible. even though the conditions were terrible, they tried to pressure passengers to relocate their seats to accommodate adults who were related and wanted to sit next to each other, even after the passengers expressed that they did not want to move for that purpose. on the connecting flight, the “service” consisted of items for purchase. even though the flight was only 45 minutes, once again passengers (including me) were pressured to relocate for people to sit next to each other. they couldn’t be apart for 45 minutes? this was much less compelling than being apart for an 8 hour flight.

Everything went smoothly, and we even arrived 40min earlier than scheduled, on an Orland-Madrid route.

The staff was very nice and helpful. Some of the best crew I have met.

Bad experience. The seat room are very tight. The food is not good and the breakfast has no hot drink.

Excellent. Thanks to United Star Alliance, since economy was overbooked, I’m grateful to have been upgraded to Business Class.

Good plane, excellent food, crew and entertainment. Seats in business could use an upgrade

Disaster. Downgraded. Zero apology. No effort or coordination between gate and crew. Awful seat blocked by door emergency slide box. Iberia is a mess. App never works. Avoid this airline.

We departed late but made up most of the time in flight. Our ticket was pure economy, so it wasn’t anything fancy; however, I heard that we arrived in Madrid at the exact same time that First Class passengers arrived! Overall, our experience was similar to what we had on other American Airlines transatlantic flights - good value at a reasonable price. We were even able to get our carry-on baggage onto the plane without needing to gate check it.

Flight was OK. Waiting for luggage in Madrid for 55 minutes, unacceptable

The issue was not with BA it was with the link yoiu sent fopr booking the flight

Loved the boarding option from Business class lounge, experience on flight was excellent, plenty of good food choices

Getting the boarding passes between the BA and AA apps was very clunky.

The plane was dirty the food was awful and the boarding process took too long

Awful it always is unfortunately is the only way to fly direct to london

Check in was was and the agent was very friendly and helpful The lounge was nice...boarding was straight from the lounge Everything worked at our seats, and video entertainment was good ..food was mediocre

Airlines have to stop assuming passengers bring entertainment. Provide it like you used to in business class and above!! N

I don't know about the others but the flight attendant that took care of us had the absolute wrong approach "how do we dare asking for water or anything else for that matter"

No WiFi in either flight. No leg room, the seat in front of me left dents on my knees and the tray was so low my knees propped it up if I tried to use it.

Need to offer Better food from LAX to London Service from London to Delhi very delayed after take off.

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

Information on your arrival and departure airports