$345+ Cheap flights from Ontario (ONT) to Madrid, Spain (MAD)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/6. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — MAD
Sep 25 — Oct 21
Round-trip
1 adult, Economy
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Find cheap flights from Ontario to Madrid with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Cheapest flights from Ontario to MadridExplore the most affordable flight options available from Ontario to Madrid. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 26, 2026.
Explore the most affordable flight options available from Ontario to Madrid. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 26, 2026.
This United Airlines deal was found by Cheapflights users on 8/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/26:00 am -
2 stops17h 00m
Wed 12/161:25 pm -
2 stops42h 13m
Deal found 8/21![United Airlines logo]()
$747
This SmartFares deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1211:59 pm -
1 stop24h 06m
Wed 10/281:00 pm -
1 stop17h 59m
Deal found 8/20![British Airways logo]()
$749
This United Airlines deal was found by Cheapflights users on 8/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/135:00 am -
2 stops16h 50m
Thu 10/221:30 pm -
2 stops42h 19m
Deal found 8/23![United Airlines logo]()
$752
This Iberia deal was found by Cheapflights users on 8/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/132:22 pm -
1 stop15h 03m
Thu 10/223:55 pm -
1 stop16h 57m
Deal found 8/23![Multiple Airlines logo]()
$758
This British Airways deal was found by Cheapflights users on 8/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1310:25 am -
1 stop13h 40m
Wed 11/1111:05 am -
1 stop16h 42m
Deal found 8/21![British Airways logo]()
$764
This Delta deal was found by Cheapflights users on 8/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2911:10 am -
1 stop13h 35m
Wed 1/136:05 am -
2 stops19h 07m
Deal found 8/23![Delta logo]()
$766
This United Airlines deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/175:00 am -
3 stops40h 50m
Thu 10/296:05 am -
2 stops24h 43m
Deal found 8/20![United Airlines logo]()
$767
This United Airlines deal was found by Cheapflights users on 8/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/87:00 am -
2 stops15h 45m
Tue 11/1711:00 am -
2 stops18h 51m
Deal found 8/24![United Airlines logo]()
$768
This Delta deal was found by Cheapflights users on 8/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/712:16 pm -
2 stops34h 04m
Tue 11/1712:20 pm -
1 stop17h 26m
Deal found 8/21![Delta logo]()
$780
This American Airlines deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1710:10 pm -
1 stop22h 20m
Thu 10/291:00 pm -
2 stops18h 52m
Deal found 8/20![American Airlines logo]()
$784
This Iberia deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/132:22 pm -
1 stop15h 03m
Mon 11/212:55 am -
1 stop17h 45m
Deal found 8/20![Iberia logo]()
$788
This United Airlines deal was found by Cheapflights users on 8/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/141:35 pm -
2 stops33h 10m
Sat 11/211:25 pm -
2 stops38h 22m
Deal found 8/23![United Airlines logo]()
$798
Best flights from Ontario to MadridDiscover carefully curated flight deals from Ontario to Madrid that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 26, 2026.
Discover carefully curated flight deals from Ontario to Madrid that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 26, 2026.
This United Airlines deal was found by Cheapflights users on 8/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/296:00 am -
2 stops16h 45m
Fri 1/1511:15 am -
2 stops18h 05m
Deal found 8/22![United Airlines logo]()
$880
This Delta deal was found by Cheapflights users on 8/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/207:05 am -
1 stop20h 10m
Fri 10/99:50 am -
1 stop21h 04m
Deal found 8/21![Delta logo]()
$885
This Alaska Airlines deal was found by Cheapflights users on 8/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/316:00 am -
2 stops31h 10m
Sun 1/107:40 am -
2 stops24h 01m
Deal found 8/23![Alaska Airlines logo]()
$1,119
This United Airlines deal was found by Cheapflights users on 8/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/61:29 pm -
2 stops33h 31m
Mon 11/1611:15 am -
2 stops19h 25m
Deal found 8/21![United Airlines logo]()
$894
This United Airlines deal was found by Cheapflights users on 8/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/256:00 am -
2 stops16h 45m
Sun 11/291:25 pm -
2 stops40h 26m
Deal found 8/23![United Airlines logo]()
$981
This Alaska Airlines deal was found by Cheapflights users on 8/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/316:00 am -
2 stops31h 10m
Mon 1/119:00 am -
2 stops22h 41m
Deal found 8/23![Alaska Airlines logo]()
$1,119
This Delta deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/612:00 pm -
1 stop15h 15m
Sun 9/139:50 am -
1 stop17h 17m
Deal found 8/20![Delta logo]()
$1,126
This United Airlines deal was found by Cheapflights users on 8/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/307:00 am -
2 stops16h 45m
Sun 11/111:15 am -
2 stops19h 26m
Deal found 8/21![United Airlines logo]()
$1,020
This United Airlines deal was found by Cheapflights users on 8/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/67:00 am -
2 stops40h 50m
Wed 9/161:30 pm -
2 stops42h 29m
Deal found 8/22![United Airlines logo]()
$1,079
This United Airlines deal was found by Cheapflights users on 8/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/145:45 am -
2 stops18h 30m
Mon 12/286:05 am -
2 stops20h 41m
Deal found 8/24![United Airlines logo]()
$1,114
This United Airlines deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/236:00 am -
2 stops16h 45m
Mon 11/308:35 am -
2 stops21h 16m
Deal found 8/20![United Airlines logo]()
$1,153
This United Airlines deal was found by Cheapflights users on 8/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/136:00 am -
2 stops16h 45m
Sun 11/1511:00 am -
2 stops18h 51m
Deal found 8/25![United Airlines logo]()
$1,162
Last-minute flights from Ontario to MadridDiscover last-minute flight deals from Ontario to Madrid. Data last updated August 26, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Madrid. Data last updated August 26, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 8/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/207:05 am -
1 stop20h 10m
Thu 10/159:50 am -
1 stop21h 04m
Deal found 8/21![Delta logo]()
$885
This Finnair deal was found by Cheapflights users on 8/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/228:25 am -
2 stops19h 25m
Tue 9/293:55 pm -
1 stop26h 34m
Deal found 8/23![Multiple Airlines logo]()
$827
This Iberia deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/222:22 pm -
1 stop15h 03m
Tue 10/63:55 pm -
1 stop16h 57m
Deal found 8/20![Iberia logo]()
$834
This Alaska Airlines deal was found by Cheapflights users on 8/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/223:14 pm -
2 stops20h 21m
Thu 10/19:10 am -
2 stops23h 14m
Deal found 8/22![Alaska Airlines logo]()
$889
This United Airlines deal was found by Cheapflights users on 8/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/241:24 pm -
2 stops33h 41m
Wed 9/3012:45 pm -
2 stops56h 33m
Deal found 8/24![United Airlines logo]()
$888
This United Airlines deal was found by Cheapflights users on 8/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/264:03 pm -
2 stops31h 57m
Fri 10/91:30 pm -
2 stops42h 19m
Deal found 8/23![United Airlines logo]()
$823
This United Airlines deal was found by Cheapflights users on 8/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/264:03 pm -
2 stops31h 57m
Wed 10/710:50 am -
2 stops19h 08m
Deal found 8/23![United Airlines logo]()
$838
This United Airlines deal was found by Cheapflights users on 8/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/261:52 pm -
2 stops34h 08m
Thu 10/810:50 am -
2 stops43h 08m
Deal found 8/23![United Airlines logo]()
$851
This Justfly.com deal was found by Cheapflights users on 8/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/2612:37 pm -
1 stop35h 28m
Fri 10/912:40 pm -
1 stop19h 19m
Deal found 8/23![British Airways logo]()
$868
This Delta deal was found by Cheapflights users on 8/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/267:05 am -
1 stop20h 10m
Thu 10/89:50 am -
1 stop21h 04m
Deal found 8/23![Delta logo]()
$884
This United Airlines deal was found by Cheapflights users on 8/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/267:00 am -
2 stops40h 05m
Sat 10/1012:45 pm -
2 stops56h 33m
Deal found 8/23![United Airlines logo]()
$886
This British Airways deal was found by Cheapflights users on 8/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/3010:25 am -
1 stop13h 40m
Tue 10/612:40 pm -
1 stop16h 14m
Deal found 8/24![British Airways logo]()
$870
One-way flights from Ontario to MadridSearch for one-way flight options from Ontario to Madrid. Find affordable one-way fares based on user searches. Data last updated August 26, 2026.
Search for one-way flight options from Ontario to Madrid. Find affordable one-way fares based on user searches. Data last updated August 26, 2026.
This Expedia deal was found by Cheapflights users on 8/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/610:30 am -
1 stop13h 50m
Deal found 8/21![British Airways logo]()
$345
This Kissandfly.com deal was found by Cheapflights users on 8/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/87:00 am -
2 stops15h 45m
Deal found 8/22![Lufthansa logo]()
$346
This Booking.com deal was found by Cheapflights users on 8/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1310:25 am -
1 stop13h 40m
Deal found 8/22![British Airways logo]()
$348
This American Airlines deal was found by Cheapflights users on 8/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/82:22 pm -
2 stops19h 13m
Deal found 8/25![American Airlines logo]()
$349
This Mytrip deal was found by Cheapflights users on 8/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2810:25 am -
1 stop13h 40m
Deal found 8/23![British Airways logo]()
$350
This American Airlines deal was found by Cheapflights users on 8/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/112:22 pm -
1 stop15h 03m
Deal found 8/22![American Airlines logo]()
$352
This Delta deal was found by Cheapflights users on 8/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2812:16 pm -
1 stop13h 29m
Deal found 8/24![Delta logo]()
$355
This Iberia deal was found by Cheapflights users on 8/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/86:00 am -
1 stop15h 10m
Deal found 8/24![Iberia logo]()
$356
This United Airlines deal was found by Cheapflights users on 8/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/196:53 pm -
3 stops28h 07m
Deal found 8/25![United Airlines logo]()
$359
This Finnair deal was found by Cheapflights users on 8/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/47:00 am -
2 stops21h 10m
Deal found 8/25![Multiple Airlines logo]()
$360
This United Airlines deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/71:35 pm -
2 stops34h 40m
Deal found 8/20![United Airlines logo]()
$361
Find flight deals from Ontario to Madrid
Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Madrid (MAD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 26, 2026.
Most accurate provider | Ovago 3 stars |
|---|---|
Most trusted provider | Ovago 3 stars |
Round-trip from | $747 (United Airlines) |
One-way from | $345 (Expedia) |
Popular in | June |
Cheapest in | August |
Average price | $490 |
Cheapflights Fare Finder
Customize your flight search to find flights from Ontario to Madrid 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 7,457,451 searches. Data last updated August 26, 2026.
Use the filters below to find and compare flights from Ontario to Madrid that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
OntarioMadrid
ONT Ontario - MAD Madrid Barajas
ONTMAD
Ontario
Tue 12/29
6:00 am-7:45 am
2 stops16h 45m
Madrid Barajas
Fri 1/15
11:15 am-8:20 pm
2 stops18h 05m
$880
OntarioMadrid
ONT Ontario - MAD Madrid Barajas
ONTMAD
Ontario
Sun 9/20
7:05 am-12:15 pm
1 stop20h 10m
Madrid Barajas
Fri 10/9
9:50 am-9:54 pm
1 stop21h 04m
$885
OntarioMadrid
ONT Ontario - MAD Madrid Barajas
ONTMAD
Ontario
Fri 11/6
1:29 pm-8:00 am
2 stops33h 31m
Madrid Barajas
Mon 11/16
11:15 am-9:40 pm
2 stops19h 25m
$894
OntarioMadrid
ONT Ontario - MAD Madrid Barajas
ONTMAD
Ontario
Wed 11/25
6:00 am-7:45 am
2 stops16h 45m
Madrid Barajas
Sun 11/29
1:25 pm-8:51 pm
2 stops40h 26m
$981
OntarioMadrid
ONT Ontario - MAD Madrid Barajas
ONTMAD
Ontario
Fri 10/30
7:00 am-7:45 am
2 stops16h 45m
Madrid Barajas
Sun 11/1
11:15 am-9:41 pm
2 stops19h 26m
$1,020
OntarioMadrid
ONT Ontario - MAD Madrid Barajas
ONTMAD
Ontario
Sun 9/6
7:00 am-8:50 am
2 stops40h 50m
Madrid Barajas
Wed 9/16
1:30 pm-10:59 pm
2 stops42h 29m
$1,079
OntarioMadrid
ONT Ontario - MAD Madrid Barajas
ONTMAD
Ontario
Mon 12/14
5:45 am-9:15 am
2 stops18h 30m
Madrid Barajas
Mon 12/28
6:05 am-5:46 pm
2 stops20h 41m
$1,114
OntarioMadrid
ONT Ontario - MAD Madrid Barajas
ONTMAD
Ontario
Thu 12/31
6:00 am-10:10 pm
2 stops31h 10m
Madrid Barajas
Sun 1/10
7:40 am-10:41 pm
2 stops24h 01m
$1,119
OntarioMadrid
ONT Ontario - MAD Madrid Barajas
ONTMAD
Ontario
Thu 12/31
6:00 am-10:10 pm
2 stops31h 10m
Madrid Barajas
Mon 1/11
9:00 am-10:41 pm
2 stops22h 41m
$1,119
Quickest round-trip
OntarioMadrid
ONT Ontario - MAD Madrid Barajas
ONTMAD
Ontario
Sun 9/6
12:00 pm-12:15 pm
1 stop15h 15m
Madrid Barajas
Sun 9/13
9:50 am-6:07 pm
1 stop17h 17m
$1,126
Showing 1-10 of 23 resultsSorted by cheapest first
Compare providers for flights from Ontario to Madrid
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Madrid in August.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
- Most accurate provider: When it comes to deals on Ontario-Madrid flights, users find the pricing of Ovago to be most consistent on Cheapflights vs. Ovago Users can find the same prices on Ontario-Madrid flight deals on Cheapflights vs. Ovago >95% of the time. Price accuracy is based on data collected from Ontario-Madrid flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Ontario-Madrid flights, Cheapflights users trust Ovago the most. Ovago has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Madrid flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Ontario to Madrid
Have a flexible travel schedule? Discover the best time to fly to Madrid from Ontario with our price prediction graph.
ONT-MAD
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Ontario to Madrid
What is the cheapest month to book a flight from Ontario to Madrid?
Currently, August is the cheapest month in which you can book a flight from Ontario to Madrid (average of $490). Flying from Ontario to Madrid in June is currently the most expensive (average of $1,889). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How much does it cost to fly round-trip from Ontario to Madrid?
Airfare is above average for this route at the moment.
Ontario to Madrid flights typically cost between $498 and $747 in December.The cheapest round-trip price found within the last 5 days was $747 on United Airlines (Dec 2-Dec 16).
Reviews of airlines servicing Madrid
Get insights into the airlines that provide service to Madrid. 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 Madrid. Reviews last updated August 26, 2026.
Read through reviews of airlines operating flights from Ontario to Madrid, such as American Airlines,Iberia, andBritish Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Food
6.4
Comfort
7.2
Entertainment
6.8
Boarding
7.5
Crew
7.9
Overall
7.1
Reviews
1 / 20
2.0
MediocreJeremy,Sep 2025
SAN - PHL
Food
6.4
Comfort
7.2
Entertainment
6.8
Boarding
7.5
Crew
7.9
Overall
7.1
Reviews
1 / 20
2.0
MediocreJeremy,Sep 2025
SAN - PHL
Food
6.4
Comfort
7.2
Entertainment
6.8
Boarding
7.5
Crew
7.9
Overall
7.1
Reviews
1 / 20
2.0
MediocreJeremy,Sep 2025
SAN - PHL
Food
6.4
Comfort
7.2
Entertainment
6.8
Boarding
7.5
Crew
7.9
Overall
7.1
Reviews
1 / 20
2.0
MediocreJeremy,Sep 2025
SAN - PHL
Related info for your journey
Find useful and relevant information for your journey from Ontario to Madrid. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Madrid?
Book flights to Madrid if you plan to visit one of these locationsGetafe
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Complete your trip
Complete your trip to Madrid by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Ontario to Madrid by cabin class
Find flights from Ontario to Madrid, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Other flights to Madrid
Explore flights to Madrid departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on August 26, 2026.
Ontario and Madrid flights
Browse other Ontario and Madrid flight options. Last updated on August 26, 2026.
Other flights from Ontario
Browse through other flights departing from Ontario. Flights are based on user searches made on Cheapflights and were last updated on August 26, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 3 airlines flying from Ontario to Madrid
Discover the top 3 airlines that operate flights from Ontario to Madrid. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated August 26, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$439 | Average$818 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$504 | Average$978 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$539 | Average$773 | FlexibilityNo cancel fee | On-time77% |