ONT - BCN

$350 Find Cheap Flights from Ontario to Barcelona - Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$816
Typical prices: $991-$1,283
Multiple Airlines
Sat 12/8Sat 12/15
ONT - BCN • 2 stops
Cheapest one-way
$350
Typical prices: $733-$846
Multiple Airlines
Sun 12/9
ONT - BCN • 3 stops
Nonstop flights
Not available
There are currently no direct flights between Ontario and Barcelona-El Prat Airport. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to travel
August
Cheapest • 18% price drop
July
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Atlanta Hartsfield-Jackson (ATL)
Cheapest • Avg $1,131 (round-trip)
San Francisco (SFO)
Shortest trip • 15h 44m (one-way)
Insights
Insights
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We hope you love your trip to Barcelona-El Prat Airport!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Ontario to Barcelona (ONT-BCN)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Ontario to Barcelona

Tue, Dec 8 - Tue, Dec 15
Multiple Airlines Logo
6:00 am - 11:05 pmONT  Ontario-BCN Barcelona-El Prat
32h 05m2 stops Denver Intl Munich Franz Josef Strauss
Multiple Airlines Logo
6:50 am - 10:17 pmBCN  Barcelona-El Prat-ONT Ontario
24h 27m2 stops Frankfurt am Main Denver Intl
$816Multiple Airlines
Wed, Feb 17 - Thu, Mar 4
Multiple Airlines Logo
11:15 am - 1:15 pmONT  Ontario-BCN Barcelona-El Prat
17h 00m2 stops Denver Intl Reykjavik Keflavik Intl
Multiple Airlines Logo
2:15 pm - 10:30 pmBCN  Barcelona-El Prat-ONT Ontario
41h 15m2 stops Reykjavik Keflavik Intl Denver Intl
$837Multiple Airlines
Wed, Feb 17 - Thu, Mar 4
Multiple Airlines Logo
11:15 am - 1:15 pmONT  Ontario-BCN Barcelona-El Prat
17h 00m2 stops Denver Intl Reykjavik Keflavik Intl
Multiple Airlines Logo
2:15 pm - 10:30 pmBCN  Barcelona-El Prat-ONT Ontario
41h 15m2 stops Reykjavik Keflavik Intl Denver Intl
$840Multiple Airlines
Wed, Feb 17 - Thu, Mar 4
Multiple Airlines Logo
11:15 am - 1:15 pmONT  Ontario-BCN Barcelona-El Prat
17h 00m2 stops Denver Intl Reykjavik Keflavik Intl
Multiple Airlines Logo
2:15 pm - 10:30 pmBCN  Barcelona-El Prat-ONT Ontario
41h 15m2 stops Reykjavik Keflavik Intl Denver Intl
$846Multiple Airlines
Sun, Feb 14 - Thu, Feb 18
United Airlines Logo
11:27 am - 9:00 amONT  Ontario-BCN Barcelona-El Prat
36h 33m2 stops San Francisco Washington, D.C. Dulles Intl
United Airlines Logo
1:35 pm - 6:42 pmBCN  Barcelona-El Prat-ONT Ontario
38h 07m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl
$872United Airlines
Mon, Apr 26 - Tue, May 4
United Airlines Logo
6:53 pm - 8:00 amONT  Ontario-BCN Barcelona-El Prat
28h 07m2 stops San Francisco Montreal Pierre Elliott Trudeau Intl
United Airlines Logo
1:15 pm - 10:31 pmBCN  Barcelona-El Prat-ONT Ontario
42h 16m2 stops Toronto Pearson Intl Chicago O'Hare Intl
$876United Airlines
Mon, Apr 26 - Tue, May 4
British Airways Logo
2:08 pm - 10:30 pmONT  Ontario-BCN Barcelona-El Prat
23h 22m2 stops Dallas/Fort Worth London Heathrow
British Airways Logo
10:45 am - 10:35 pmBCN  Barcelona-El Prat-ONT Ontario
20h 50m1 stop Dallas/Fort Worth
$883British Airways
Tue, Mar 23 - Wed, Mar 31
British Airways Logo
10:34 am - 9:10 amONT  Ontario-BCN Barcelona-El Prat
14h 36m1 stop Dallas/Fort Worth
British Airways Logo
10:45 am - 6:42 pmBCN  Barcelona-El Prat-ONT Ontario
16h 57m1 stop Dallas/Fort Worth
$885British Airways
Mon, Apr 26 - Tue, May 4
British Airways Logo
6:00 am - 10:10 amONT  Ontario-BCN Barcelona-El Prat
19h 10m1 stop Dallas/Fort Worth
British Airways Logo
10:45 am - 6:37 pmBCN  Barcelona-El Prat-ONT Ontario
16h 52m1 stop Dallas/Fort Worth
$885British Airways
Wed, Dec 30 - Wed, Jan 13
United Airlines Logo
5:00 am - 9:35 amONT  Ontario-BCN Barcelona-El Prat
19h 35m2 stops Denver Intl Montreal Pierre Elliott Trudeau Intl
United Airlines Logo
6:50 am - 8:01 pmBCN  Barcelona-El Prat-ONT Ontario
22h 11m2 stops Frankfurt am Main San Francisco
$888United Airlines
Booking Insights

Price, demand and travel trends for Ontario to Barcelona-El Prat Airport flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

Which airline is the cheapest to fly from Ontario to Barcelona-El Prat Airport?

United Airlines ($872) and British Airways ($883) are the cheapest airlines to fly round-trip from Ontario to Barcelona-El Prat Airport according to KAYAK data over the last 5 days.

Find deals

Key details for Ontario to Barcelona-El Prat Airport flights

Cheapest flight

$350
The most popular month to fly with an average 31% increase in travelers.
One-way flight from Ontario to Barcelona-El Prat Airport

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

Your Ontario to Barcelona-El Prat Airport flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What cabin classes can I book on flights from Ontario to Barcelona-El Prat Airport?

    Two cabin classes are available on flights from Ontario to Barcelona-El Prat Airport:

    • Economy Class
    • Business Class

  • How long is a flight from Ontario to Barcelona-El Prat Airport?

    A nonstop flight from Ontario to Barcelona-El Prat Airport takes 00m, covering 5,971 miles.

  • Do I need a passport to fly from Ontario to Barcelona-El Prat Airport?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a Ontario to Barcelona-El Prat Airport flight?

    Round-trip flights from Ontario to Barcelona-El Prat Airport range from $991 to $1,283, with an average of $1,118 over the past 12 months. Anything below $991 counts as a good deal.

  • How are flight prices from Ontario to Barcelona-El Prat Airport looking right now?

    One-way fares from Ontario to Barcelona-El Prat Airport are currently lower than usual. Average one-way flight prices are about $392, which is 53% below the typical average for this route.

  • What car rental options are available at Barcelona-El Prat Airport (BCN)?

    Barcelona-El Prat Airport (BCN) hosts 5 major car rental companies, with daily rates averaging $29 for economy cars. Top options include:

    • Record go
    • NIZACARS
    • Goldcar Rental SP
    • CLICK RENT
    • DRIVALIA

  • Which airports can I use when flying from Ontario to Barcelona-El Prat Airport?

    Flights from Ontario to Barcelona-El Prat Airport usually depart from Ontario (ONT) and arrive at Barcelona-El Prat (BCN).

  • Which airports do connecting flights from Ontario to Barcelona-El Prat Airport pass through?

    One-stop flights from Ontario to Barcelona-El Prat Airport most commonly connect through:

    • Dallas/Fort Worth (DFW) - 44% of one-stop connections
    • San Francisco (SFO) - 33% of one-stop connections
    • Atlanta Hartsfield-Jackson (ATL) - 18% of one-stop connections
    • Chicago O'Hare Intl (ORD) - 2% of one-stop connections

  • Can I save money by using flexible dates for flights from Ontario to Barcelona-El Prat Airport?

    Yes. Flexible dates can save you up to 38% on flights from Ontario to Barcelona-El Prat Airport. Saturday is the cheapest departure day at $774 round-trip on average, while Wednesday is the most expensive at $1,243, a difference of $469.

    Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

  • How much time can I save by choosing a different layover airport from Ontario to Barcelona-El Prat Airport?

    Flying via San Francisco (SFO) gives the shortest average 1-stop total travel time at 15h 44m, compared with 16h 18m via Seattle/Tacoma Intl (SEA) and 16h 45m via Dallas/Fort Worth (DFW).

  • What is the time difference between Ontario and Barcelona-El Prat Airport?

    Barcelona-El Prat Airport is 9 hours ahead of Ontario (Central European Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Barcelona-El Prat Airport?

    Some of the most popular sights in Barcelona-El Prat Airport are La Rambla, Sagrada Familia and Placa de Catalunya. These are among the most viewed places in Barcelona-El Prat Airport on KAYAK.

Your guide to booking Ontario to Barcelona-El Prat Airport flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Saturday departure and avoid flying on Wednesday. On this route, Saturday flights average $774, about $469 less than Wednesday fares (38% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Ontario to Barcelona-El Prat Airport trip for August. Fares historically average $918 round-trip in that month - typically $708 less than the most expensive month, which is June (based on the last 12 months).

More options for your flight from Ontario to Barcelona

Complete your trip to Barcelona with a hotel stay or car rental

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