Cheap flights from Ontario to Barcelona-El Prat Airport from $325
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Barcelona-El Prat Airport departing on 4/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Deals available from 900+ travel sites.
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from Ontario to Barcelona
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
United Airlines flights from Ontario to Barcelona-El Prat Airport
Our best United Airlines deals on Ontario to Barcelona-El Prat Airport flight tickets
British Airways flights from Ontario to Barcelona-El Prat Airport
Our best British Airways deals on Ontario to Barcelona-El Prat Airport flight tickets
See travel insights to Barcelona from
How to get the cheapest flight ticket from Ontario to Barcelona-El Prat Airport
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the typical price of a round-trip flight between Ontario and Barcelona-El Prat Airport?
What is the cheapest month to fly to Barcelona-El Prat Airport?
The cheapest month to fly to Barcelona-El Prat Airport from Ontario is in January. Flight prices, which tend to average around $580, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of January, then book flights to Barcelona-El Prat Airport from Ontario during February instead. Flights to Barcelona-El Prat Airport in February, while not as cheap as those in January, still average around $587.
What is the cheapest day to depart on your flight to Barcelona-El Prat Airport?
The cheapest day to depart on your flight to Barcelona-El Prat Airport is on a Tuesday when prices can be found for as low as $4. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Friday because tickets tend to average around $934. These prices are subject to change though, so be sure to set up a Price Alert for flights to Barcelona-El Prat Airport.
What is the cheapest time of day to depart on your flight to Barcelona-El Prat Airport?
Flying to Barcelona-El Prat Airport from Ontario in the evening is the least expensive time of day to depart. momondo users have found prices as low as $645 when looking at flights departing in the evening. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $1,036 on average. Flights to Barcelona-El Prat Airport from Ontario in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.
How far in advance should I book a flight to Barcelona-El Prat Airport?
You are more likely to see cheaper flights to Barcelona-El Prat Airport from Ontario when booking 21 weeks ahead of your departure date. In general, you can expect to find flights to Barcelona-El Prat Airport for around $874 when searching 21 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Barcelona-El Prat Airport from Ontario for as low as $618 on momondo.
What is the cheapest airline that flies from Ontario to Barcelona-El Prat?
KLM, British Airways, and United Airlines are the most popular carriers operating from Ontario to Barcelona-El Prat
What airlines fly to Barcelona-El Prat Airport?
Iberia, LEVEL and Vueling are the top three most popular airlines that fly to Barcelona-El Prat Airport from Ontario according to our data. Iberia is the first choice among our users, with 37% of people opting to fly with this airline when traveling to Barcelona-El Prat Airport. Keep in mind that there are 22 different airlines that fly to Barcelona-El Prat Airport on a routine basis, so you have a few additional options to choose from.
When to book flights from Ontario to Barcelona-El Prat Airport
Cheap Ontario to Barcelona-El Prat Airport (ONT to BCN) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Ontario to Barcelona-El Prat Airport
How far is Ontario to Barcelona-El Prat by plane?
Barcelona-El Prat is 5972.8 mi away from Ontario. 14h 13m is a normal flight duration for this route.
When did momondo last update prices for flights from Ontario Airport to Barcelona-El Prat Airport?
Prices for flights from Ontario Airport to Barcelona-El Prat Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Ontario Airport to Barcelona-El Prat Airport?
As of February 2025, there are 6 operators available to choose from for flights from Ontario Airport to Barcelona-El Prat Airport.
How old do you have to be to fly from Ontario Airport to Barcelona-El Prat Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Barcelona-El Prat Airport.
What documentation or ID do you need to fly to Barcelona-El Prat Airport?
The required travel and health documents for your Barcelona-El Prat Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Barcelona-El Prat Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from Ontario to Barcelona-El Prat Airport?
Based on momondo bookings for flights between Ontario and Barcelona-El Prat Airport, the leading airline is United Airlines, making up 31% of the total bookings. Other popular airlines include American Airlines with 19%, Delta with 18%, and British Airways with 13%.
Best airlines flying from Ontario to Barcelona-El Prat Airport
Compare and see reviews for airlines that fly from Ontario to Barcelona-El Prat Airport with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $551 | Free Cancellation | Rating 6.6 6,762 reviews | |||
| PriceFrom $567 | Free Cancellation | Rating 8.0 8,219 reviews | |||
| PriceFrom $582 | Free Cancellation | Rating 7.4 8,765 reviews | |||
| PriceFrom $687 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $690 | Free Cancellation | Rating 7.0 8,748 reviews | |||
| PriceFrom $831 | Free Cancellation | Rating 7.0 2,639 reviews |
Traveling to a place near Barcelona?
Book flights to Barcelona if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Ontario to Barcelona?
It is quick and easy to find Ontario to Barcelona flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Barcelona that suits you.
Can I find flights from Ontario to Barcelona with flexible booking policies on momondo?
All flight searches from Ontario to Barcelona on momondo can be filtered to show those which offer flexible booking policies.
How can momondo help me find flights from Ontario to Barcelona?
momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Ontario to Barcelona.
I’m not ready to book a flight from Ontario to Barcelona right now. Can momondo alert me if prices change?
Of course. momondo tracks the price of Ontario to Barcelona flights. All you need is a valid email address and we will do the rest; it is that quick and easy.