ONT - BCN

$349 Find Cheap Flights from Ontario to Barcelona

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to Barcelona departing on 11/30. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags

Search hundreds of travel sites at once for deals on flights to Barcelona

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Barcelona.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Barcelona.
In the last 7 days travelers have searched 47,946,175 times on KAYAK, and here is why:

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

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

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

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

World’s Best Airfare Search Site for 2024

Cheap Flight Deals from Ontario to Barcelona (ONT-BCN)

 
These are the cheapest deals for flights from Ontario to Barcelona currently on KAYAK along with options from the most popular airlines KAYAK users selected for this route. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from Ontario to Barcelona

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Ontario to Barcelona.

Recent one-way flight deals from Ontario to Barcelona

Only flying one-way? Below are some of the best one-way flight deals from Ontario to Barcelona found on KAYAK recently.

Recent last minute flight deals from Ontario to Barcelona

Leaving soon but still want a bargain? Check out these latest deals for last minute flights from Ontario to Barcelona.

Recent direct flight deals from Ontario to Barcelona

The latest deals for direct flights from Ontario to Barcelona so you can sit back and relax without the need for a layover.

Cheap bus & train deals from Ontario to Barcelona

Find recent round-trip train or bus tickets from Ontario to Barcelona.

All round-trip flight deals to Barcelona

The cheapest plane tickets to Barcelona found on KAYAK recently.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
5:05 am - 9:50 amONT-BCN
19h 45m2 stops
11:15 am - 8:57 pmBCN-ONT
41h 42m2 stops
$478Air Canada
Find Deal
Mi, Mrz 5 - Do, Mrz 13
7:00 am - 8:00 amONT-BCN
16h 00m1 stop
10:15 am - 10:52 pmBCN-ONT
21h 37m1 stop
$495Delta
Find Deal
Di, Feb 4 - Do, Feb 13
5:10 am - 9:50 amONT-BCN
19h 40m2 stops
11:00 am - 9:57 pmBCN-ONT
19h 57m2 stops
$505United Airlines
Find Deal
Mi, Jan 8 - Do, Jan 16
10:36 am - 1:55 pmONT-BCN
18h 19m1 stop
6:45 am - 10:45 pmBCN-ONT
24h 00m2 stops
$516United Airlines
Find Deal
Mi, Mrz 5 - Do, Mrz 13
1:32 pm - 10:25 pmONT-BCN
24h 53m2 stops
9:15 pm - 5:52 pmBCN-ONT
29h 37m2 stops
$576British Airways
Find Deal
So, Mrz 23 - So, Mrz 30
3:08 pm - 7:10 pmONT-BCN
19h 02m2 stops
7:20 pm - 5:49 pmBCN-ONT
31h 29m2 stops
$604British Airways
Find Deal
So, Mrz 30 - Sa, Apr 5
10:58 am - 6:10 pmONT-BCN
22h 12m2 stops
10:35 am - 11:35 pmBCN-ONT
22h 00m2 stops
$781Iberia
Find Deal
Mi, Apr 16 - Mi, Mai 14
2:44 pm - 5:15 pmONT-BCN
17h 31m2 stops
1:30 pm - 11:58 pmBCN-ONT
19h 28m2 stops
$817Iberia
Find Deal
So, Jan 12 - So, Jan 26
10:58 am - 9:55 amONT-BCN
13h 57m1 stop
12:15 pm - 11:35 pmBCN-ONT
20h 20m1 stop
$854American Airlines
Find Deal
Mi, Apr 16 - Mi, Mai 14
1:31 am - 9:55 amONT-BCN
23h 24m1 stop
12:15 pm - 11:42 pmBCN-ONT
20h 27m1 stop
$1,089American Airlines
Find Deal
Sa, Mrz 29 - Sa, Apr 5
10:52 pm - 7:45 pmONT-BCN
35h 53m3 stops
Sa, Nov 30
7:00 am - 8:00 amONT-BCN
16h 00m1 stop
$402KLM
Find Deal
Di, Jan 21
5:10 am - 9:50 amONT-BCN
19h 40m2 stops
$403United Airlines
Find Deal
Mi, Jan 8
3:30 pm - 8:20 amONT-BCN
31h 50m2 stops
$409United Airlines
Find Deal
Sa, Feb 22
6:05 am - 4:10 pmONT-BCN
25h 05m2 stops
$598British Airways
Find Deal
Di, Dez 24
11:59 pm - 9:55 amONT-BCN
24h 56m1 stop
$634British Airways
Find Deal
Sa, Apr 12
10:00 pm - 8:40 amONT-BCN
25h 40m1 stop
$708Delta
Find Deal
Sa, Nov 30
12:55 pm - 8:40 amONT-BCN
34h 45m1 stop
$752Delta
Find Deal
Di, Dez 24
5:05 am - 8:50 amONT-BCN
19h 45m3 stops
$6,022Air Canada
Find Deal
Mi, Mrz 26
5:05 am - 9:50 amONT-BCN
19h 45m3 stops
$6,272Air Canada
Find Deal
Mo, Feb 17
10:00 pm - 8:40 amONT-BCN
25h 40m1 stop
10:55 am - 11:01 pmBCN-ONT
21h 06m1 stop
$1,094Delta
Find Deal
So, Nov 24 - Di, Dez 3
10:00 pm - 8:40 amONT-BCN
25h 40m1 stop
6:00 am - 4:45 pmBCN-ONT
19h 45m2 stops
$1,118Delta
Find Deal
So, Nov 24 - Di, Dez 3
7:10 am - 8:40 amONT-BCN
16h 30m1 stop
10:55 am - 7:45 pmBCN-ONT
17h 50m1 stop
$1,139KLM
Find Deal
Mo, Nov 25 - Mo, Dez 9
1:42 pm - 9:50 amONT-BCN
35h 08m2 stops
1:55 pm - 11:58 pmBCN-ONT
43h 03m2 stops
$1,330United Airlines
Find Deal
So, Nov 24 - Di, Dez 3
6:10 am - 9:00 amONT-BCN
17h 50m2 stops
11:45 am - 11:58 pmBCN-ONT
21h 13m2 stops
$1,344United Airlines
Find Deal
Mo, Nov 25 - Mo, Dez 9
4:25 pm - 7:05 pmONT-BCN
17h 40m2 stops
8:35 pm - 6:33 pmBCN-ONT
30h 58m2 stops
$1,422British Airways
Find Deal
So, Nov 24 - Di, Dez 3
4:25 pm - 6:00 pmONT-BCN
16h 35m2 stops
6:40 am - 10:14 pmBCN-ONT
24h 34m2 stops
$1,547British Airways
Find Deal
Mo, Nov 25 - Di, Dez 3
5:05 am - 9:50 amONT-BCN
19h 45m3 stops
12:15 pm - 12:40 pmBCN-ONT
33h 25m3 stops
$1,569Air Canada
Find Deal
Mo, Nov 25 - Di, Dez 3
7:10 am - 8:40 amONT-BCN
16h 30m1 stop
10:55 am - 7:42 pmBCN-ONT
17h 47m1 stop
$2,122KLM
Find Deal
Mo, Nov 25 - Mo, Dez 2
5:05 am - 9:50 amONT-BCN
19h 45m3 stops
1:15 pm - 12:40 pmBCN-ONT
32h 25m3 stops
$2,437Air Canada
Find Deal
Di, Nov 26 - Mo, Dez 2

Flights from Ontario to Barcelona - Travel Insights & Trends

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

What is the cheapest month to fly from Ontario to Barcelona-El Prat Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Ontario to Barcelona-El Prat Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Ontario to Barcelona-El Prat Airport is February, where tickets cost $482 on average. On the other hand, the most expensive months are June and July, where the average cost of tickets is $1,120 and $1,023 respectively.

How far in advance should I book a flight from Ontario to Barcelona-El Prat Airport?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Ontario to Barcelona-El Prat Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Ontario to Barcelona-El Prat Airport, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 174 days before departure.

Good to know

Low season

January

High season

June

Cheapest flight

$349
Best time to beat the crowds with an average 28% drop in price.
Most popular time to fly with an average 46% increase in price.
Flight from Ontario to Barcelona

When to book flights from Ontario to Barcelona

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

FAQs for booking Ontario to Barcelona flights

  • What is the cheapest flight from Ontario to Barcelona-El Prat Airport?

    In the last 3 days, the lowest price for a flight from Ontario to Barcelona-El Prat Airport was $349 for a one-way ticket and $478 for a round-trip.

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

    Yes

  • Which airports will I be using when flying from Ontario to Barcelona?

    Ontario airport is called Ontario and the only airport in Barcelona is Barcelona-El Prat.

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

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

  • Which airline alliances offer flights from Ontario to Barcelona?

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

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

    The two airlines most popular with KAYAK users for flights from Ontario to Barcelona are Delta and United Airlines. With an average price for the route of $843 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $943 and an overall rating of 7.4.

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

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ontario to Barcelona.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Barcelona from Ontario is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Ontario to Barcelona?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Barcelona with an airline and back to Ontario with another airline. Booking your flights between Ontario and BCN can sometimes prove cheaper using this method.

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

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Barcelona from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top 5 airlines serving from Ontario to Barcelona

 
See real verified KAYAK customer reviews for airlines flying from Ontario to Barcelona. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Ontario to Barcelona? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
DeltaOverall score based on 8759 reviews
7.9Entertainment
8.5Crew
8.2Boarding
7.9Comfort
7.3Food
Airline reviews

I actually received a notification from kayak on email but not one by text from Delta when my departure gait changed and I almost missed my flight

8.0 Excellentscott, Oct 2024LAX - MSP
Read more Delta reviews

I actually received a notification from kayak on email but not one by text from Delta when my departure gait changed and I almost missed my flight

New boarding doesn't make sense. Filling front first is slow.

Delta flight was great from the check in all the way to arrival. However, I had a very bad experience. I requested a wheelchair and the wheelchair employee that went to pick me up from the plane in Boston to bring me to the baggage claims told me I have to pay him. I was under the impression that it was a free service and I usually give tips but the person forced me to pay and since I said no because I was upset with his demand when my daughter walked in to pick me up he demanded payment from my daughter who paid him thinking maybe now it is a charged service.

Horrible. Grateful to be alive but spent 13 hours at airport only to return back to my familys house and flight changed to next day. They tried to fix a part on plane, had no back up plane and after 10 hours , reattempted the flight and it STILL wasn't fixed. We got a meal voucher and rescheduled flight but there should be some other compensation for the 15 hours spent in airport

My seat was changed at the last minute and I was moved to the last row, right next to the bathroom despite selecting my seat well in advance. I was also made to check my carry on due to space but when I got on the plane there was significant empty overhead space. Picking up my carry on from the luggage carousel added time to my trip which had already been extended due to delay.

There was plenty of overhead room but half of the passengers were told they had to check their carryon bags. My partner and I checked in as early as possible and our seats were split across the aisle.

Flew first class so everything was great. But maybe because the flights were red eye, no meals were served, just chips. I flew Alaska Air 1st class at 9PM (2 hour flight) and they served beef short rib sliders!

There was a loud squeaky sound the whole time we were flying.

I didn’t not like that I could not select my seat and ended up with the worse seat.

The landing was bad and the hostess came two times and i was sleeping but when she served the person that nexts to me I woke up and she didn’t even asked me if I need any drink or snacks two times!!!!

There was no USB plug in my section of the plane. So I could not charge my phone. Also, there was no screen to watch movie or anything like that. Wish I had known that in advance, I would’ve brought my iPad.

Made all groups except 2 check despite ample bin space. Inflight WiFi and entertainment didn’t work most of the time.

Seats are smaller and harder than other airlines we have travels with. Food was edible but no good. The sandwich was the only thing I would eat again. They did have a lot of movies to watch.

Not enough room between rows and food was gross. $160 baggage charge?! Never again.

Booked a united Air flight with option to pick seat , then found out was on an Air Canada flight with assigned seat , then they wanted a several dollar charge for some 25 cent value entertainment listening ear device

It was fine. The flight attendant appeared to be in a bad mood but everything was fine.

Waited for our plane from HNL so we didn't miss connection. AMAZING Service for that, then really clean plane. Nice airline attendants.

Seats are outdated. Entertainment relies on personal device. Boarding was delayed due to inaccurate passenger tracking, resulted in late arrival at Reno.

Excellent staff helping my 96 year old senior promptly with her oxygen needs

The crew and flight was amazing. I haven't flown United in years but plan to switch to you being my main airline

It was as expected for such a short flight. No complaints

It was nice being on a flight that had working wifi. The boarding was quick - why don’t all airlines have small boarding groups window to aisle? Makes so much sense!!! I was disappointed to be the first person stopped to have to gate check my carryon. Especially when there was plenty of overhead space at the back! But I get it…keeps it moving. Crew was nice.

The flight encountered a delay exceeding 4 hours. The food voucher issued was valued at $12, insufficient to cover our meal expenses. Consequently, I was unable to take my medication, leading to a drop in blood sugar levels and exacerbating my anxiety.

Crazy seating issues. We got seated far apart. Offered middle seats at a premium rate. Why is a middle seat now the expensive seat? Baffling.

The boarding process was a nightmare and though we were traveling business class, we were in Group 2 and the organization was terrible. The Business Class on this flight was crowded and did not feel clean and nice. Overall, I would not travel Business again on the American Airline flight through British Airways Not nearly special enough for the considerable cost .

Not too impressed with them to be honest. They had forgotten my gf meal, despite the fact that the app had notified me that it was sorted. Apparently there is a ‘glitch’ in the system, according to one of the stewardesses, and has been for a while. Also the legroom in economy is way too small (and I’m a slight person) and are very uncomfortable. An extra Internal flight I booked via the app, had not even given me the option to order a meal, so was unaware of that and left without food on a 9 hr. flight !! Don’t think I’ll use AA again after this.

The flight was uneventful. What was a problem was I was delayed getting home one entire day because the flight from Sacramento was delayed. That made getting to my connecting flight impossible. I had to stay another night at the hotel and incur that expense as a result.

VERY disappointed at the agent checking in my luggage. I know that the weight limit is 23 kg, a little over 50 pounds (50.71 pounds). Yet the agent kept repeating "50 pounds". So I said, the limit is 23 kg, and she had the audacity to say 'no, it is 22 kg!" Imagine my surprise. Was she ignorant or was she poorly trained? Not sure. The boarding process was pretty good. The speakers were loud enough so I still could hear them despite inconsiderate passengers continuing to speak while the announcements were going on. During the flight, the teenage girl sitting behind me kept pressing her feet to the back of my chair. I turned around several times, yet she did not get the hint. I did not make a fuss since I sense I had a bad streak that night with AA, so I just did the best I can to lean forward and not let that bother me.

Seats were very uncomfortable. I paid extra for a seat with more leg room, the seat was no different than a seat at the back of the plane. Flight attendant was rude.

Flights were on time. That's the main consideration since I had to change planes. The entertainment was whatever you bring with you and the food (in Economy) is non-existant. Neither of those was a surprise.

Problem with operation of on board entertainment computer. Failed about 1 /2 hour into the flight. Rebooting failed to restore.

There was a terrible delay upon arrival in Barcelona. The plane had to park a great distance from the terminal, and only one bus was available to make the ~15 minutes each way trip, meaning it was ~ 45 minutes after we landed that I finally entered the terminal.

Hated charging my devices. The location of the outlet was inconvenient. And no USB connection. So outdated.

I was very good. Service was great. Seating selection was not too good.

Arrived at our connection to find out all 4 of our seats were moved in different parts of the aircraft. Traveling with two small children, this was not going to work. We spoke with the gate attendant and she was not helpful and downright rude. They could only “accommodate” having 2 seats together and this was an international flight. We will not be traveling with air Canada again unless there are absolutely no other options.

The mid flight snack could have been more substantial than tiny bag of pretzels.

Flight took off little late and landed back at YVR after an hour without informing a reason to the passengers. Also, second time also got late but an hour to take off. Therefore, I had to change my plans during due to delay in landing to SFO roughly about 6 to 7 hours.

. Crew was professional and friendly. Food could have been hotter

Our flight AC 567 was delayed by almost 6 hrs due to mechanical falure

Terrible. They cancelled our flight the night before. Please give me a call to discuss.

Reasonably comfortable. Plenty of room. Crew were attentive and continually informing passengers of position. Although stuck in runway for 1 hour, weather issues, it felt like we were the crews first priority

British Airways canceled my flight and I had to fly on Lufthansa the next day. What a garbage airline 🗑️

The whole experience was great. The only improvement would be the entertainment selection

It was good overall. Entertainment was ok, one of the TV screens had issue. Bit old plane but leg space was good. Overhead luggage had good space. The worst part was experience at Heathrow airport, it was total chaos.

Lost our luggage going to Spain. Missed our connecting flight returning to home

It would be great to have at least two choices for a food, instead of just plain pasta 😏

Cabin crew were not nice. The plane was an hour late arriving.

Flight was on time. Boarding process was tedious. Not much overhead cabin space. Seats very close (front to back). Uneventful trip just the same.

Great staff, very personable, attentive. We had a spare seat next to us so that helped

The flight from Porto was delayed by 3 hours. Arrived in the US late at night. Exhausted from all the waiting. And staff did not communicate well with customers.

Book cheap flights from Ontario to Barcelona

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Ontario to Barcelona found on KAYAK in the last 72 hours.
11/30Sa
3 stops
35h 53mONT-BCN
$349
1/21Di
1 stopKLM
16h 00mONT-BCN
$402
1/8Mi
2 stopsUnited Airlines
19h 40mONT-BCN
$403
2/22Sa
2 stopsUnited Airlines
31h 50mONT-BCN
$409
12/24Di
2 stopsBritish Airways
25h 05mONT-BCN
$598
4/12Sa
1 stopBritish Airways
24h 56mONT-BCN
$634
11/30Sa
1 stopDelta
25h 40mONT-BCN
$708
12/24Di
1 stopDelta
34h 45mONT-BCN
$752
3/26Mi
3 stopsAir Canada
19h 45mONT-BCN
$6,022
2/17Mo
3 stopsAir Canada
19h 45mONT-BCN
$6,272

Search by stops

Search by airline

Search by price

Last minute flights from Ontario to Barcelona

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Ontario to Barcelona that are departing in the next 10 days.
11/24So
multi-stopDelta
25h 40mONT-BCN
12/3Di
multi-stopDelta
21h 06mBCN-ONT
$1,094
11/24So
multi-stopDelta
25h 40mONT-BCN
12/3Di
multi-stopDelta
19h 45mBCN-ONT
$1,118
11/25Mo
multi-stopKLM
16h 30mONT-BCN
12/9Mo
multi-stopKLM
17h 50mBCN-ONT
$1,139
11/24So
multi-stopUnited Airlines
35h 08mONT-BCN
12/3Di
multi-stopUnited Airlines
43h 03mBCN-ONT
$1,330
11/25Mo
multi-stopUnited Airlines
17h 50mONT-BCN
12/9Mo
multi-stopUnited Airlines
21h 13mBCN-ONT
$1,344
11/24So
multi-stopBritish Airways
17h 40mONT-BCN
12/3Di
multi-stopBritish Airways
30h 58mBCN-ONT
$1,422
11/25Mo
multi-stopBritish Airways
16h 35mONT-BCN
12/3Di
multi-stopBritish Airways
24h 34mBCN-ONT
$1,547
11/25Mo
multi-stopAir Canada
19h 45mONT-BCN
12/3Di
multi-stopAir Canada
33h 25mBCN-ONT
$1,569
11/25Mo
multi-stopKLM
16h 30mONT-BCN
12/2Mo
multi-stopKLM
17h 47mBCN-ONT
$2,122
11/26Di
multi-stopAir Canada
19h 45mONT-BCN
12/2Mo
multi-stopAir Canada
32h 25mBCN-ONT
$2,437

Search by stops

Search by airline

Search by price

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

Information on your arrival and departure airports

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