Flights Destinations Beaches Map Services Booking Collections Ratings
Home / Ontario — Barcelona

Cheap flights Ontario — Barcelona

from $352 9 618 km ~11h 49m 2 flights found 2 airlines cheapest on Thursday
How many travellers?
Adults
12+ years
1
Children
2–11 years
0
Infants
under 2
0
Choose your departure date
Cheapest: $352 on 10.12.2026
Prices shown are from searches by other travellers over the last 24 hours. Missing a date? Click any day — we'll find tickets anyway.
November 2026
Mo
Tu
We
Th
Fr
Sa
Su
December 2026
Mo
Tu
We
Th
Fr
Sa
Su
January 2027
Mo
Tu
We
Th
Fr
Sa
Su
Prices found for 2 of 90 days. Prices update as more travellers search. Click any date to search live.
Depart
—
Return
—
Cheapest flights found
10 Dec 2026, Thu
Frontier Airlines F9 1500
17:00
ONT Ontario International Airport
08:54
BCN Barcelona-El Prat Airport
15h 54m 3 stops
View this ticket
15 Nov 2026, Sun
United Airlines UA 2226
18:00
ONT Ontario International Airport
06:29
BCN Barcelona-El Prat Airport
12h 29m 1 stop
View this ticket
Route characteristics
Distance
9 618 km
Flight time
11h 49m
Time difference
+9h
Minimum price
from $352 (10.12.2026)
Average price
$491
Maximum price
$630
Cheapest day
Thursday
Departure airports (1)
ONT Ontario International Airport
Arrival airports (1)
BCN Barcelona-El Prat Airport
Airlines (2)
F9 Frontier Airlines UA United Airlines
Agencies (2)
Mytrip.com Turna.com
Prices by day of week
Price trend by month
Airlines — cheapest prices 2
Frontier Airlines
Frontier Airlines
Low-cost 1 flights · 1 days
$352
United Airlines
United Airlines
1 flights · 1 days
$630
Where to buy tickets 2
Mytrip.com
1 tickets · 1 days
from $352
Turna.com
1 tickets · 1 days
from $630
Airports

From — Ontario (1)

  • ONT Ontario International Airport

To — Barcelona (1)

  • BCN Barcelona-El Prat Airport
Other destinations from Ontario
Frequently asked questions about the route Ontario — Barcelona
How long is the flight from Ontario to Barcelona?
Approximate flight time — 11h 49m. This is an average for a direct flight. With connections, the time may be longer.
What is the distance from Ontario to Barcelona?
The straight-line distance — 9 618 km.
How much do flights from Ontario to Barcelona cost?
The minimum price over 3 months — from $352 on 10.12.2026.
What is the average ticket price?
The average price — $491. Range: $352 — $630.
What is the time difference between Ontario and Barcelona?
The difference — +9h.
From which airports does Ontario operate flights?
From Ontario: ONT (Ontario International Airport).
To which airports in Barcelona do flights arrive?
To Barcelona: BCN (Barcelona-El Prat Airport).
Which airlines fly this route?
This route is served by 2 airlines: Frontier Airlines, United Airlines.
Which day of the week is cheapest?
The cheapest day of the week — Thursday.
When is the best time to buy tickets?
Optimal — 1–3 months before departure. Check the calendar above — it shows the best dates.
How do I book flights?
Click "View this ticket" on any flight card — you'll be redirected to the booking page with this specific ticket pre-selected.
About the route Ontario — Barcelona

Flights Ontario — Barcelona is a popular route. The straight-line distance is 9 618 km. Flight time 11h 49m. Time difference +9h.

From Ontario (ONT) flights depart from 1 airport: ONT. To Barcelona (BCN) — 1 arrival airport: BCN.

2 airlines operate on this route: Frontier Airlines, United Airlines.

The minimum price for the next 3 months — from $352 (10.12.2026). The cheapest dates are highlighted in the calendar above.

The average ticket price — $491, ranging from $352 to $630. Book 1–3 months in advance to get the best deals.

Cheapest day to fly — Thursday.

Other destinations in Spain from Ontario