$358+ Cheap flights from Ontario (ONT) to Barcelona-El Prat (BCN)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/1. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — BCN
Oct 10 — Oct 171
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Ontario to Barcelona-El Prat 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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Ontario to Barcelona-El Prat
Cheapest
Best
Last-minute
One-way
Cheapest flights from Ontario to Barcelona-El PratExplore the most affordable flight options available from Ontario to Barcelona-El Prat. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 10, 2026.
Explore the most affordable flight options available from Ontario to Barcelona-El Prat. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 10, 2026.
This Delta deal was found by Cheapflights users on 9/9. 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 11/177:05 am -
1 stop16h 35m
Tue 12/810:50 am -
1 stop19h 09m
Deal found 9/9![Delta logo]()
$722
This United Airlines deal was found by Cheapflights users on 9/10. 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 11/105:00 am -
2 stops19h 35m
Tue 11/179:55 am -
2 stops19h 20m
Deal found 9/10![United Airlines logo]()
$729
This Delta deal was found by Cheapflights users on 9/9. 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 11/1711:57 am -
2 stops17h 03m
Fri 12/410:50 am -
1 stop16h 49m
Deal found 9/9![Delta logo]()
$741
This Kissandfly.com deal was found by Cheapflights users on 9/8. 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.
Tue 10/2011:56 am -
1 stop14h 14m
Wed 1/2010:50 am -
1 stop20h 24m
Deal found 9/8![Multiple Airlines logo]()
$744
This Delta deal was found by Cheapflights users on 9/9. 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 11/177:05 am -
1 stop16h 35m
Mon 12/710:50 am -
1 stop20h 06m
Deal found 9/9![Delta logo]()
$772
This United Airlines deal was found by Cheapflights users on 9/10. 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 12/107:00 am -
2 stops17h 00m
Thu 12/2410:30 am -
2 stops21h 11m
Deal found 9/10![United Airlines logo]()
$777
This Delta deal was found by Cheapflights users on 9/8. 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 11/287:05 am -
1 stop16h 35m
Sat 12/510:50 am -
1 stop18h 06m
Deal found 9/8![Delta logo]()
$822
This KLM deal was found by Cheapflights users on 9/9. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/167:05 am -
1 stop16h 35m
Wed 12/210:50 am -
1 stop19h 09m
Deal found 9/9![KLM logo]()
$833
This United Airlines deal was found by Cheapflights users on 9/7. 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 12/25:45 am -
2 stops17h 35m
Fri 12/111:35 pm -
2 stops38h 09m
Deal found 9/7![United Airlines logo]()
$858
This United Airlines deal was found by Cheapflights users on 9/7. 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 12/611:26 am -
2 stops26h 39m
Fri 12/111:35 pm -
2 stops38h 09m
Deal found 9/7![United Airlines logo]()
$861
This Booking.com deal was found by Cheapflights users on 9/8. 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.
Mon 9/2810:25 am -
1 stop14h 45m
Wed 10/710:45 am -
1 stop16h 59m
Deal found 9/8![British Airways logo]()
$862
This United Airlines deal was found by Cheapflights users on 9/6. 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 11/11:29 pm -
2 stops33h 51m
Tue 11/1711:00 am -
2 stops19h 40m
Deal found 9/6![United Airlines logo]()
$865
Best flights from Ontario to Barcelona-El PratDiscover carefully curated flight deals from Ontario to Barcelona-El Prat that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 10, 2026.
Discover carefully curated flight deals from Ontario to Barcelona-El Prat that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 10, 2026.
This United Airlines deal was found by Cheapflights users on 9/6. 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 11/11:29 pm -
2 stops33h 51m
Tue 11/1711:00 am -
2 stops19h 40m
Deal found 9/6![United Airlines logo]()
$865
This British Airways deal was found by Cheapflights users on 9/9. 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.
Sun 11/17:00 am -
1 stop15h 55m
Tue 11/1710:40 am -
1 stop17h 02m
Deal found 9/9![British Airways logo]()
$869
This Delta deal was found by Cheapflights users on 9/8. 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.
Thu 12/311:08 pm -
2 stops24h 52m
Wed 12/910:50 am -
1 stop19h 09m
Deal found 9/8![Delta logo]()
$927
This Turkish Airlines deal was found by Cheapflights users on 9/9. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1011:05 pm -
2 stops39h 10m
Thu 10/227:40 am -
2 stops25h 02m
Deal found 9/9![Multiple Airlines logo]()
$1,117
This United Airlines deal was found by Cheapflights users on 9/7. 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 1/121:00 pm -
2 stops35h 35m
Tue 1/1911:00 am -
2 stops18h 20m
Deal found 9/7![United Airlines logo]()
$888
This United Airlines deal was found by Cheapflights users on 9/5. 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 1/75:00 am -
2 stops19h 35m
Thu 1/2111:00 am -
2 stops18h 20m
Deal found 9/5![United Airlines logo]()
$931
This Turkish Airlines deal was found by Cheapflights users on 9/7. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/212:13 pm -
2 stops24h 02m
Sun 11/16:30 am -
2 stops25h 10m
Deal found 9/7![Multiple Airlines logo]()
$1,161
This Turkish Airlines deal was found by Cheapflights users on 9/10. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/302:50 pm -
2 stops25h 00m
Sun 11/86:30 am -
2 stops25h 10m
Deal found 9/10![Multiple Airlines logo]()
$1,171
This Turkish Airlines deal was found by Cheapflights users on 9/5. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/83:00 pm -
2 stops23h 50m
Mon 3/226:30 am -
2 stops24h 00m
Deal found 9/5![Multiple Airlines logo]()
$1,201
This United Airlines deal was found by Cheapflights users on 9/9. 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 10/247:00 am -
1 stop22h 15m
Sat 10/316:50 am -
2 stops21h 25m
Deal found 9/9![United Airlines logo]()
$1,251
This Turkish Airlines deal was found by Cheapflights users on 9/6. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1011:05 pm -
2 stops50h 40m
Fri 10/237:40 am -
2 stops25h 02m
Deal found 9/6![Multiple Airlines logo]()
$1,238
This Finnair deal was found by Cheapflights users on 9/6. 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.
Sun 10/117:00 am -
2 stops21h 35m
Sun 10/187:00 pm -
2 stops26h 14m
Deal found 9/6![Multiple Airlines logo]()
$1,245
Last-minute flights from Ontario to Barcelona-El PratDiscover last-minute flight deals from Ontario to Barcelona-El Prat. Data last updated September 10, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Barcelona-El Prat. Data last updated September 10, 2026 and is based on user searches.
This Iberia deal was found by Cheapflights users on 9/8. 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.
Thu 9/2410:25 am -
1 stop14h 45m
Thu 10/810:45 am -
1 stop16h 59m
Deal found 9/8![Iberia logo]()
$912
This Booking.com deal was found by Cheapflights users on 9/8. 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.
Mon 9/2810:25 am -
1 stop14h 45m
Wed 10/710:45 am -
1 stop16h 59m
Deal found 9/8![British Airways logo]()
$862
This Delta deal was found by Cheapflights users on 9/10. 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 10/412:19 pm -
1 stop15h 31m
Wed 10/211:20 pm -
1 stop18h 23m
Deal found 9/10![Delta logo]()
$722
This United Airlines deal was found by Cheapflights users on 9/10. 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 10/91:52 pm -
2 stops57h 08m
Sat 10/176:40 am -
2 stops49h 09m
Deal found 9/10![United Airlines logo]()
$926
This United Airlines deal was found by Cheapflights users on 9/10. 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 10/166:32 pm -
1 stop34h 48m
Mon 10/266:50 am -
2 stops21h 25m
Deal found 9/10![United Airlines logo]()
$901
This Kissandfly.com deal was found by Cheapflights users on 9/8. 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.
Tue 10/2011:56 am -
1 stop14h 14m
Wed 1/2010:50 am -
1 stop20h 24m
Deal found 9/8![Multiple Airlines logo]()
$744
This Trip.com deal was found by Cheapflights users on 9/6. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2610:25 am -
1 stop14h 25m
Thu 10/2910:50 am -
1 stop18h 21m
Deal found 9/6![Iberia logo]()
$911
This Expedia deal was found by Cheapflights users on 9/8. 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.
Thu 10/2910:25 am -
1 stop14h 25m
Thu 11/1210:50 am -
1 stop16h 52m
Deal found 9/8![British Airways logo]()
$923
This United Airlines deal was found by Cheapflights users on 9/8. 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 10/291:32 pm -
2 stops15h 43m
Thu 11/1210:30 am -
2 stops21h 18m
Deal found 9/8![United Airlines logo]()
$928
This Booking.com deal was found by Cheapflights users on 9/8. 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.
Thu 10/2910:25 am -
1 stop14h 25m
Sun 11/810:40 am -
1 stop17h 02m
Deal found 9/8![British Airways logo]()
$949
This United Airlines deal was found by Cheapflights users on 9/10. 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 10/316:00 am -
2 stops18h 20m
Sat 11/149:55 am -
2 stops19h 20m
Deal found 9/10![United Airlines logo]()
$952
One-way flights from Ontario to Barcelona-El PratSearch for one-way flight options from Ontario to Barcelona-El Prat. Find affordable one-way fares based on user searches. Data last updated September 10, 2026.
Search for one-way flight options from Ontario to Barcelona-El Prat. Find affordable one-way fares based on user searches. Data last updated September 10, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/15:44 pm -
2 stops41h 46m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Multiple Airlines logo]()
$358
This Expedia deal was found by Cheapflights users on 9/10. 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.
Wed 11/117:00 am -
1 stop16h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![British Airways logo]()
$400
This Booking.com deal was found by Cheapflights users on 9/7. 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.
Mon 11/27:00 am -
1 stop16h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![British Airways logo]()
$406
This FlightHub deal was found by Cheapflights users on 9/8. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/12:17 pm -
2 stops18h 38m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![British Airways logo]()
$407
This Delta deal was found by Cheapflights users on 9/9. 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 11/297:05 am -
1 stop16h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Delta logo]()
$408
This American Airlines deal was found by Cheapflights users on 9/9. 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 11/17:00 am -
1 stop15h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![American Airlines logo]()
$409
This Mytrip deal was found by Cheapflights users on 9/9. 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.
Tue 11/36:00 am -
1 stop17h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![British Airways logo]()
$410
This FlightHub deal was found by Cheapflights users on 9/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/47:00 am -
1 stop16h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![British Airways logo]()
$411
This United Airlines deal was found by Cheapflights users on 9/6. 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 11/177:00 am -
1 stop21h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![United Airlines logo]()
$412
This Delta deal was found by Cheapflights users on 9/9. 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 -
1 stop35h 24m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Delta logo]()
$415
This United Airlines deal was found by Cheapflights users on 9/7. 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 11/115:00 am -
3 stops19h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![United Airlines logo]()
$416
This Air Canada deal was found by Cheapflights users on 9/9. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/51:40 pm -
2 stops34h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Air Canada logo]()
$417
Find flight deals from Ontario to Barcelona-El Prat
Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Barcelona-El Prat (BCN). 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 September 10, 2026.
Most accurate provider | Ovago 3 stars |
|---|---|
Most trusted provider | Ovago 3 stars |
Round-trip from | $722 (Delta) |
One-way from | $358 (Kiwi.com) |
Popular in | July |
Cheapest in | November |
Average price | $1,159 |
Cheapflights Fare Finder
Customize your flight search to find flights from Ontario to Barcelona-El Prat 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 September 10, 2026.
Use the filters below to find and compare flights from Ontario to Barcelona-El Prat Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
OntarioBarcelona
ONT Ontario - BCN Barcelona-El Prat
ONTBCN
Ontario
Tue 12/1
7:05 am-8:40 am
1 stop16h 35m
Barcelona-El Prat
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$408
OntarioBarcelona
ONT Ontario - BCN Barcelona-El Prat
ONTBCN
Ontario
Tue 11/10
7:00 am-1:15 pm
1 stop21h 15m
Barcelona-El Prat
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$412
OntarioBarcelona
ONT Ontario - BCN Barcelona-El Prat
ONTBCN
Ontario
Mon 11/9
7:00 am-1:15 pm
1 stop21h 15m
Barcelona-El Prat
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$412
OntarioBarcelona
ONT Ontario - BCN Barcelona-El Prat
ONTBCN
Ontario
Sun 11/8
7:00 am-1:15 pm
1 stop21h 15m
Barcelona-El Prat
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$412
OntarioBarcelona
ONT Ontario - BCN Barcelona-El Prat
ONTBCN
Ontario
Wed 11/11
6:00 am-9:00 am
2 stops18h 00m
Barcelona-El Prat
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$412
OntarioBarcelona
ONT Ontario - BCN Barcelona-El Prat
ONTBCN
Ontario
Sat 11/7
12:16 pm-8:40 am
1 stop35h 24m
Barcelona-El Prat
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$415
OntarioBarcelona
ONT Ontario - BCN Barcelona-El Prat
ONTBCN
Ontario
Thu 11/12
7:05 am-8:40 am
1 stop16h 35m
Barcelona-El Prat
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$462
OntarioBarcelona
ONT Ontario - BCN Barcelona-El Prat
ONTBCN
Ontario
Fri 11/13
11:10 pm-8:40 am
1 stop24h 30m
Barcelona-El Prat
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$462
OntarioBarcelona
ONT Ontario - BCN Barcelona-El Prat
ONTBCN
Ontario
Thu 11/5
7:00 am-1:15 pm
1 stop21h 15m
Barcelona-El Prat
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$462
Quickest round-trip
OntarioBarcelona
ONT Ontario - BCN Barcelona-El Prat
ONTBCN
Ontario
Mon 10/12
12:16 pm-12:50 pm
1 stop15h 34m
Barcelona-El Prat
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$529
Showing 1-10 of 22 resultsSorted by cheapest first
Compare providers for flights from Ontario to Barcelona-El Prat
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 Barcelona-El Prat in September.
| 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 Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Ontario-Barcelona-El Prat Airport flights, users find the pricing of Ovago to be most consistent on Cheapflights vs. Ovago Users can find the same prices on Ontario-Barcelona-El Prat Airport flight deals on Cheapflights vs. Ovago >95% of the time. Price accuracy is based on data collected from Ontario-Barcelona-El Prat Airport flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Ontario-Barcelona-El Prat Airport 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-Barcelona-El Prat Airport 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 Barcelona-El Prat
Have a flexible travel schedule? Discover the best time to fly to Barcelona-El Prat from Ontario with our price prediction graph.
ONT-BCN
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.
Reviews of airlines servicing Barcelona-El Prat
Get insights into the airlines that provide service to Barcelona-El Prat. 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 Barcelona-El Prat. Reviews last updated September 10, 2026.
Read reviews from past customers who have flown United Airlines and British Airways from Ontario to Barcelona-El Prat Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.3
Food
6.7
Boarding
7.7
Entertainment
7.1
Overall
7.4
Crew
8.1
Reviews
1 / 20
4.0
OkayDynasty,May 2026
LAX - EWR
Comfort
7.3
Food
6.7
Boarding
7.7
Entertainment
7.1
Overall
7.4
Crew
8.1
Reviews
1 / 20
4.0
OkayDynasty,May 2026
LAX - EWR
Comfort
7.3
Food
6.7
Boarding
7.7
Entertainment
7.1
Overall
7.4
Crew
8.1
Reviews
1 / 20
4.0
OkayDynasty,May 2026
LAX - EWR
Related info for your journey
Find useful and relevant information for your journey from Ontario to Barcelona-El Prat. 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 Barcelona-El Prat Airport?
Book flights to Barcelona-El Prat Airport if you plan to visit one of these locationsRoses
Calella
Badalona
L'Hospitalet de Llobregat
El Prat de Llobregat
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Barcelona-El Prat flight routes
Complete your trip
Flights by cabin class
Other flight options
Other flights from Ontario
Popular flights
Alternative routes for Ontario to Barcelona-El Prat
See prices for flight routes from nearby airports that may be better suited for you.
Other flights to Barcelona-El Prat
Explore flights to Barcelona-El Prat departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 10, 2026.
Complete your trip
Complete your trip to Barcelona-El Prat by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Ontario to Barcelona-El Prat by cabin class
Find flights from Ontario to Barcelona-El Prat, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Ontario and Barcelona-El Prat flights
Browse other Ontario and Barcelona-El Prat flight options. Last updated on September 10, 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 September 10, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 2 airlines flying from Ontario to Barcelona-El Prat
Discover the top 2 airlines that operate flights from Ontario to Barcelona-El Prat. 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 September 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$820 | Average$1,181 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$874 | Average$1,119 | FlexibilityNo cancel fee | On-time69% |