$462+ Cheap flights from Ontario (ONT) to Barcelona-El Prat (BCN)
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 6/1. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — BCN
May 23 — May 301
Round-trip
1 adult, Economy
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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
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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 April 23, 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 April 23, 2026.
This Condor deal was found by Cheapflights users on 4/19. 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 Condor is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1210:55 am
ONT
- BCN
2 stops26h 15m
Multiple Airlines
Tue 5/268:00 am
BCN
- ONT
2 stops20h 35m
Multiple Airlines
Deal found 4/19![Multiple Airlines logo]()
$885
This Condor deal was found by Cheapflights users on 4/19. 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 Condor is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/311:05 am
ONT
- BCN
2 stops26h 05m
Multiple Airlines
Tue 5/198:00 am
BCN
- ONT
2 stops23h 15m
Multiple Airlines
Deal found 4/19![Multiple Airlines logo]()
$944
This Turkish Airlines deal was found by Cheapflights users on 4/19. 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 10/76:00 am
ONT
- BCN
2 stops32h 15m
Multiple Airlines
Sun 10/187:40 am
BCN
- ONT
2 stops40h 07m
Multiple Airlines
Deal found 4/19![Multiple Airlines logo]()
$994
This FlightHub deal was found by Cheapflights users on 4/21. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/207:10 am
ONT
- BCN
2 stops23h 55m
Multiple Airlines
Mon 9/78:00 am
BCN
- ONT
2 stops21h 19m
Multiple Airlines
Deal found 4/21![Multiple Airlines logo]()
$1,009
This oojo deal was found by Cheapflights users on 4/22. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/276:00 am
ONT
- BCN
1 stop18h 50m
British Airways
Tue 11/1010:40 am
BCN
- ONT
1 stop22h 17m
British Airways
Deal found 4/22![British Airways logo]()
$1,061
This American Airlines deal was found by Cheapflights users on 4/22. 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.
Tue 10/2712:35 pm
ONT
- BCN
2 stops18h 10m
American Airlines
Tue 11/1010:40 am
BCN
- ONT
1 stop16h 42m
American Airlines
Deal found 4/22![American Airlines logo]()
$1,062
This British Airways deal was found by Cheapflights users on 4/18. 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 10/112:22 pm
ONT
- BCN
2 stops20h 13m
British Airways
Wed 10/211:30 pm
BCN
- ONT
1 stop16h 38m
British Airways
Deal found 4/18![British Airways logo]()
$1,063
This Condor deal was found by Cheapflights users on 4/19. 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 Condor is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/252:10 pm
ONT
- BCN
2 stops23h 00m
Multiple Airlines
Sat 9/58:00 am
BCN
- ONT
2 stops21h 19m
Multiple Airlines
Deal found 4/19![Multiple Airlines logo]()
$1,064
This Delta deal was found by Cheapflights users on 4/19. 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 9/2312:00 pm
ONT
- BCN
1 stop15h 50m
Delta
Tue 10/611:00 am
BCN
- ONT
1 stop20h 14m
Delta
Deal found 4/19![Delta logo]()
$1,066
This oojo deal was found by Cheapflights users on 4/21. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1011:59 pm
ONT
- BCN
1 stop25h 11m
British Airways
Thu 10/221:30 pm
BCN
- ONT
1 stop16h 38m
British Airways
Deal found 4/21![British Airways logo]()
$1,069
This Delta deal was found by Cheapflights users on 4/18. 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 10/105:05 pm
ONT
- BCN
2 stops34h 45m
Delta
Wed 10/2111:00 am
BCN
- ONT
2 stops21h 48m
Delta
Deal found 4/18![Delta logo]()
$1,070
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 April 23, 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 April 23, 2026.
This Turkish Airlines deal was found by Cheapflights users on 4/19. 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.
Thu 10/812:00 pm
ONT
- BCN
2 stops26h 15m
Multiple Airlines
Sat 10/177:40 am
BCN
- ONT
2 stops43h 33m
Multiple Airlines
Deal found 4/19![Multiple Airlines logo]()
$994
This British Airways deal was found by Cheapflights users on 4/20. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2110:25 am
ONT
- BCN
1 stop14h 45m
British Airways
Mon 9/2810:45 am
BCN
- ONT
1 stop17h 12m
British Airways
Deal found 4/20![British Airways logo]()
$1,116
This KLM deal was found by Cheapflights users on 4/18. 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 8/1712:00 pm
ONT
- BCN
1 stop15h 50m
KLM
Mon 8/3111:00 am
BCN
- ONT
1 stop16h 01m
KLM
Deal found 4/18![KLM logo]()
$1,154
This United Airlines deal was found by Cheapflights users on 4/20. 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.
Sun 5/1010:37 am
ONT
- BCN
1 stop18h 43m
United Airlines
Tue 5/194:10 pm
BCN
- ONT
1 stop15h 49m
United Airlines
Deal found 4/20![United Airlines logo]()
$1,191
This Delta deal was found by Cheapflights users on 4/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/2811:59 am
ONT
- BCN
1 stop14h 11m
Delta
Tue 8/1111:00 am
BCN
- ONT
1 stop16h 01m
Delta
Deal found 4/22![Delta logo]()
$1,236
This United Airlines deal was found by Cheapflights users on 4/19. 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 10/89:39 am
ONT
- BCN
1 stop19h 41m
United Airlines
Sat 10/173:15 pm
BCN
- ONT
1 stop16h 11m
United Airlines
Deal found 4/19![United Airlines logo]()
$1,239
This KLM deal was found by Cheapflights users on 4/20. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/112:07 pm
ONT
- BCN
1 stop15h 43m
KLM
Thu 6/1111:00 am
BCN
- ONT
1 stop16h 25m
KLM
Deal found 4/20![KLM logo]()
$1,264
This British Airways deal was found by Cheapflights users on 4/23. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/110:29 am
ONT
- BCN
1 stop14h 41m
British Airways
Mon 9/710:45 am
BCN
- ONT
1 stop17h 02m
British Airways
Deal found 4/23![British Airways logo]()
$1,288
This United Airlines deal was found by Cheapflights users on 4/21. 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.
Tue 5/51:30 pm
ONT
- BCN
1 stop15h 50m
United Airlines
Mon 5/1810:25 am
BCN
- ONT
2 stops21h 34m
United Airlines
Deal found 4/21![United Airlines logo]()
$1,255
This United Airlines deal was found by Cheapflights users on 4/23. 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.
Mon 5/111:30 pm
ONT
- BCN
1 stop15h 50m
United Airlines
Tue 5/194:10 pm
BCN
- ONT
1 stop15h 49m
United Airlines
Deal found 4/23![United Airlines logo]()
$1,271
This United Airlines deal was found by Cheapflights users on 4/18. 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 7/211:50 pm
ONT
- BCN
1 stop15h 30m
United Airlines
Tue 8/411:15 am
BCN
- ONT
2 stops20h 36m
United Airlines
Deal found 4/18![United Airlines logo]()
$1,290
This United Airlines deal was found by Cheapflights users on 4/19. 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 7/306:00 am
ONT
- BCN
1 stop23h 20m
United Airlines
Mon 8/101:25 pm
BCN
- ONT
2 stops40h 27m
United Airlines
Deal found 4/19![United Airlines logo]()
$1,325
Last-minute flights from Ontario to Barcelona-El PratDiscover last-minute flight deals from Ontario to Barcelona-El Prat. Data last updated April 23, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Barcelona-El Prat. Data last updated April 23, 2026 and is based on user searches.
This Turkish Airlines deal was found by Cheapflights users on 4/22. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/286:00 am
ONT
- BCN
2 stops32h 15m
Multiple Airlines
Mon 5/47:40 am
BCN
- ONT
2 stops39h 52m
Multiple Airlines
Deal found 4/22![Multiple Airlines logo]()
$1,074
This Expedia deal was found by Cheapflights users on 4/23. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/17:59 pm
ONT
- BCN
2 stops56h 31m
Multiple Airlines
Wed 5/137:40 am
BCN
- ONT
2 stops25h 18m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$1,118
This Condor deal was found by Cheapflights users on 4/19. 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 Condor is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/311:05 am
ONT
- BCN
2 stops26h 05m
Multiple Airlines
Tue 5/198:00 am
BCN
- ONT
2 stops23h 15m
Multiple Airlines
Deal found 4/19![Multiple Airlines logo]()
$944
This Sembo deal was found by Cheapflights users on 4/19. 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 Sembo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/31:40 pm
ONT
- BCN
2 stops33h 20m
Air Canada
Tue 5/191:15 pm
BCN
- ONT
2 stops40h 21m
Air Canada
Deal found 4/19![Air Canada logo]()
$1,176
This Expedia deal was found by Cheapflights users on 4/19. 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 5/32:08 pm
ONT
- BCN
2 stops17h 57m
British Airways
Tue 5/1910:45 am
BCN
- ONT
1 stop16h 53m
British Airways
Deal found 4/19![British Airways logo]()
$1,177
This Turkish Airlines deal was found by Cheapflights users on 4/20. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/510:39 am
ONT
- BCN
2 stops27h 36m
Multiple Airlines
Mon 6/152:35 pm
BCN
- ONT
2 stops41h 04m
Multiple Airlines
Deal found 4/20![Multiple Airlines logo]()
$1,137
This Turkish Airlines deal was found by Cheapflights users on 4/23. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/106:00 am
ONT
- BCN
2 stops32h 15m
Multiple Airlines
Tue 5/197:40 am
BCN
- ONT
2 stops40h 29m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$1,148
This United Airlines deal was found by Cheapflights users on 4/23. 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.
Sun 5/107:00 am
ONT
- BCN
1 stop21h 15m
United Airlines
Wed 5/2012:15 pm
BCN
- ONT
2 stops43h 36m
United Airlines
Deal found 4/23![United Airlines logo]()
$1,171
This Condor deal was found by Cheapflights users on 4/19. 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 Condor is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1210:55 am
ONT
- BCN
2 stops26h 15m
Multiple Airlines
Tue 5/268:00 am
BCN
- ONT
2 stops20h 35m
Multiple Airlines
Deal found 4/19![Multiple Airlines logo]()
$885
This Delta deal was found by Cheapflights users on 4/20. 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.
Tue 5/196:45 am
ONT
- BCN
1 stop19h 25m
Delta
Thu 5/2811:00 am
BCN
- ONT
1 stop19h 48m
Delta
Deal found 4/20![Delta logo]()
$1,121
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 April 23, 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 April 23, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/21. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/14:04 pm
ONT
- BCN
3 stops46h 55m
Multiple Airlines
Deal found 4/21![Multiple Airlines logo]()
$462
This Kiwi.com deal was found by Cheapflights users on 4/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/227:10 am
ONT
- BCN
2 stops21h 10m
Multiple Airlines
Deal found 4/22![Multiple Airlines logo]()
$473
This Kiwi.com deal was found by Cheapflights users on 4/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/163:34 pm
ONT
- BCN
3 stops57h 56m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$485
This Kiwi.com deal was found by Cheapflights users on 4/21. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/64:04 pm
ONT
- BCN
3 stops47h 16m
Multiple Airlines
Deal found 4/21![Multiple Airlines logo]()
$493
This Kiwi.com deal was found by Cheapflights users on 4/19. 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 6/115:43 pm
ONT
- BCN
2 stops57h 47m
Multiple Airlines
Deal found 4/19![Multiple Airlines logo]()
$525
This Kiwi.com deal was found by Cheapflights users on 4/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/236:12 pm
ONT
- BCN
2 stops32h 58m
Multiple Airlines
Deal found 4/22![Multiple Airlines logo]()
$536
This Mytrip deal was found by Cheapflights users on 4/22. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/159:36 pm
ONT
- BCN
3 stops33h 59m
Multiple Airlines
Deal found 4/22![Multiple Airlines logo]()
$621
This Mytrip deal was found by Cheapflights users on 4/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/36:45 am
ONT
- BCN
3 stops29h 30m
Multiple Airlines
Deal found 4/20![Multiple Airlines logo]()
$627
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 April 23, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $885 (Condor) |
One-way from | $462 (Kiwi.com) |
Popular in | June |
Cheapest in | September |
Average price | $1,072 |
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 2,558,603 searches. Data last updated April 23, 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 - BCN
ONTBCN
Ontario
Thu 10/8
12:00 pm-11:15 pm
2 stops26h 15m
Barcelona-El Prat
Sat 10/17
7:40 am-6:13 pm
2 stops43h 33m
$994
OntarioBarcelona
ONT - BCN
ONTBCN
Ontario
Mon 9/21
10:25 am-10:10 am
1 stop14h 45m
Barcelona-El Prat
Mon 9/28
10:45 am-6:57 pm
1 stop17h 12m
$1,116
OntarioBarcelona
ONT - BCN
ONTBCN
Ontario
Mon 8/17
12:00 pm-12:50 pm
1 stop15h 50m
Barcelona-El Prat
Mon 8/31
11:00 am-6:01 pm
1 stop16h 01m
$1,154
OntarioBarcelona
ONT - BCN
ONTBCN
Ontario
Sun 5/10
10:37 am-2:20 pm
1 stop18h 43m
Barcelona-El Prat
Tue 5/19
4:10 pm-10:59 pm
1 stop15h 49m
$1,191
Quickest round-trip
OntarioBarcelona
ONT - BCN
ONTBCN
Ontario
Tue 7/28
11:59 am-11:10 am
1 stop14h 11m
Barcelona-El Prat
Tue 8/11
11:00 am-6:01 pm
1 stop16h 01m
$1,236
OntarioBarcelona
ONT - BCN
ONTBCN
Ontario
Thu 10/8
9:39 am-2:20 pm
1 stop19h 41m
Barcelona-El Prat
Sat 10/17
3:15 pm-10:26 pm
1 stop16h 11m
$1,239
OntarioBarcelona
ONT - BCN
ONTBCN
Ontario
Tue 5/5
1:30 pm-2:20 pm
1 stop15h 50m
Barcelona-El Prat
Mon 5/18
10:25 am-10:59 pm
2 stops21h 34m
$1,255
OntarioBarcelona
ONT - BCN
ONTBCN
Ontario
Mon 6/1
12:07 pm-12:50 pm
1 stop15h 43m
Barcelona-El Prat
Thu 6/11
11:00 am-6:25 pm
1 stop16h 25m
$1,264
OntarioBarcelona
ONT - BCN
ONTBCN
Ontario
Mon 5/11
1:30 pm-2:20 pm
1 stop15h 50m
Barcelona-El Prat
Tue 5/19
4:10 pm-10:59 pm
1 stop15h 49m
$1,271
OntarioBarcelona
ONT - BCN
ONTBCN
Ontario
Tue 9/1
10:29 am-10:10 am
1 stop14h 41m
Barcelona-El Prat
Mon 9/7
10:45 am-6:47 pm
1 stop17h 02m
$1,288
Showing 1-10 of 23 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 April.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*2 stars |
- Most accurate provider: When it comes to deals on Ontario-Barcelona-El Prat Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Barcelona-El Prat Airport flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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.
Cheapflights Insights
Everything you need to know about your flight from Ontario to Barcelona-El Prat Airport
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 April 23, 2026.
Read reviews from past customers who have flown United Airlines,Iberia, andBritish 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.
Entertainment
7.1
Boarding
7.7
Overall
7.4
Food
6.6
Crew
8.1
Comfort
7.3
Reviews
1 / 20
4.0
OkayThomas,Mar 2025
SFO - TPE
Entertainment
7.1
Boarding
7.7
Overall
7.4
Food
6.6
Crew
8.1
Comfort
7.3
Reviews
1 / 20
4.0
OkayThomas,Mar 2025
SFO - TPE
Entertainment
7.1
Boarding
7.7
Overall
7.4
Food
6.6
Crew
8.1
Comfort
7.3
Reviews
1 / 20
4.0
OkayThomas,Mar 2025
SFO - TPE
Entertainment
7.1
Boarding
7.7
Overall
7.4
Food
6.6
Crew
8.1
Comfort
7.3
Reviews
1 / 20
4.0
OkayThomas,Mar 2025
SFO - TPE
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
L'Hospitalet de Llobregat
Cadaques
El Prat de Llobregat
Badalona
Pineda de Mar
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Other flights to Barcelona-El Prat
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Ontario and Barcelona-El Prat flights
Browse other Ontario and Barcelona-El Prat flight options. Last updated on April 23, 2026.
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Top 3 airlines flying from Ontario to Barcelona-El Prat
Discover the top 3 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 2,558,603 searches. Data last updated April 23, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$587 | Average$737 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$682 | Average$1,075 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$747 | Average$961 | FlexibilityNo cancel fee | On-time70% |