App
Customer Support
NZD
Find Bookings
Worldwide Coverage
Worldwide Coverage
Flights to over 5,000 cities
One-stop Service Guarantee
One-stop Service Guarantee
Price guaranteed upon confirmed payment, booking guaranteed once tickets issued
Secure Payment
Secure Payment
Convenient & reliable booking and payment system

Cheap flight deals from Ontario to Cardiff Starting at NZD 1,113

We've found these cheap flights for you. You can book one-way or round-trip flight tickets.

  • One way
  • Round-trip
      • ONT07:40 pm
        37h 15m
        2 stops
        CWL04:55 pm
        Mon, Feb 24|Ontario - Cardiff|United Airlines
        NZD 1,113NZD 1,579
        30% OFF
        30% OFF
        NZD 1,579NZD 1,113

        Choose United Airlines flights from Ontario to Cardiff. The one-way connecting flight with United Airlines departs from Ontario International Airport on Mon, Feb 24, arriving at Cardiff Airport. One-way Prices start from NZD 1,113 including taxes and charges.

      • ONT01:20 pm
        20h 35m
        2 stops
        CWL04:55 pm
        Mon, Mar 10|Ontario - Cardiff|Delta Air Lines
        NZD 1,133NZD 1,579
        28% OFF
        28% OFF
        NZD 1,579NZD 1,133

        Choose Delta Air Lines flights from Ontario to Cardiff. The one-way connecting flight with Delta Air Lines departs from Ontario International Airport on Mon, Mar 10, arriving at Cardiff Airport. One-way Prices start from NZD 1,133 including taxes and charges.

      • ONT07:05 am
        25h 50m
        2 stops
        CWL04:55 pm
        Mon, Feb 24|Ontario - Cardiff|Virgin Atlantic
        NZD 1,133NZD 1,579
        28% OFF
        28% OFF
        NZD 1,579NZD 1,133

        Choose Virgin Atlantic flights from Ontario to Cardiff. The one-way connecting flight with Virgin Atlantic departs from Ontario International Airport on Mon, Feb 24, arriving at Cardiff Airport. One-way Prices start from NZD 1,133 including taxes and charges.

      • ONT01:20 pm
        20h 35m
        2 stops
        CWL04:55 pm
        Mon, Mar 17|Ontario - Cardiff|Delta Air Lines
        NZD 1,133
        NZD 1,133

        Choose Delta Air Lines flights from Ontario to Cardiff. The one-way connecting flight with Delta Air Lines departs from Ontario International Airport on Mon, Mar 17, arriving at Cardiff Airport. One-way Prices start from NZD 1,133 including taxes and charges.

      • ONT07:05 am
        25h 50m
        2 stops
        CWL04:55 pm
        Mon, Mar 3|Ontario - Cardiff|Virgin Atlantic
        NZD 1,133
        NZD 1,133

        Choose Virgin Atlantic flights from Ontario to Cardiff. The one-way connecting flight with Virgin Atlantic departs from Ontario International Airport on Mon, Mar 3, arriving at Cardiff Airport. One-way Prices start from NZD 1,133 including taxes and charges.

      • ONT04:05 pm
        40h 50m
        2 stops
        CWL04:55 pm
        Mon, Mar 3|Ontario - Cardiff|Delta Air Lines
        NZD 1,143
        NZD 1,143

        Choose Delta Air Lines flights from Ontario to Cardiff. The one-way connecting flight with Delta Air Lines departs from Ontario International Airport on Mon, Mar 3, arriving at Cardiff Airport. One-way Prices start from NZD 1,143 including taxes and charges.

      • ONT06:00 am
        27h 55m
        2 stops
        CWL04:55 pm
        Tue, Mar 11|Ontario - Cardiff|United Airlines
        NZD 1,148
        NZD 1,148

        Choose United Airlines flights from Ontario to Cardiff. The one-way connecting flight with United Airlines departs from Ontario International Airport on Tue, Mar 11, arriving at Cardiff Airport. One-way Prices start from NZD 1,148 including taxes and charges.

      • ONT06:00 am
        27h 55m
        2 stops
        CWL04:55 pm
        Mon, Mar 17|Ontario - Cardiff|United Airlines
        NZD 1,149
        NZD 1,149

        Choose United Airlines flights from Ontario to Cardiff. The one-way connecting flight with United Airlines departs from Ontario International Airport on Mon, Mar 17, arriving at Cardiff Airport. One-way Prices start from NZD 1,149 including taxes and charges.

      • ONT07:05 am
        18h 50m
        2 stops
        CWL09:55 am
        Mon, Mar 3|Ontario - Cardiff|KLM
        NZD 1,193
        NZD 1,193

        Choose KLM flights from Ontario to Cardiff. The one-way connecting flight with KLM departs from Ontario International Airport on Mon, Mar 3, arriving at Cardiff Airport. One-way Prices start from NZD 1,193 including taxes and charges.

      • ONT07:05 am
        25h 50m
        2 stops
        CWL04:55 pm
        Mon, Mar 3|Ontario - Cardiff|Air France
        NZD 1,196
        NZD 1,196

        Choose Air France flights from Ontario to Cardiff. The one-way connecting flight with Air France departs from Ontario International Airport on Mon, Mar 3, arriving at Cardiff Airport. One-way Prices start from NZD 1,196 including taxes and charges.

      • ONT01:00 pm
        3h 5m
        Nonstop
        CWL02:00 pm
        Wed, Feb 26|Ontario - Cardiff|United Airlines
        Find More Flights
        Find More Flights

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Los Angeles to Cardiff Flight Time

Flight info.
Departure
Arrival
Weekly Schedule

  1. DL1345

    Delta Air Lines

    01:21 pm

    ONT

    1.8h

    04:08 pm

    SLC

    SMTWTFS
    Search

  2. VS3935

    Virgin Atlantic

    04:25 pm

    SLC

    9.8h

    10:15 am

    AMS

    SMTWTFS

  3. KL1093

    KLM

    04:40 pm

    AMS

    1.3h

    04:55 pm

    CWL

    SMTWTFS

  4. VS3582

    Virgin Atlantic

    01:30 pm

    ONT

    1.8h

    04:16 pm

    SLC

    SMTWTFS
    Search

  5. VS3935

    Virgin Atlantic

    04:25 pm

    SLC

    9.8h

    10:15 am

    AMS

    SMTWTFS

  6. KL1093

    KLM

    04:40 pm

    AMS

    1.3h

    04:55 pm

    CWL

    SMTWTFS

  7. DL761

    Delta Air Lines

    07:00 am

    ONT

    4.3h

    02:15 pm

    ATL

    SMTWTFS
    Search

  8. VS3932

    Virgin Atlantic

    05:35 pm

    ATL

    8.4h

    08:00 am

    AMS

    SMTWTFS

  9. KL1093

    KLM

    04:40 pm

    AMS

    1.3h

    04:55 pm

    CWL

    SMTWTFS

  10. AF2559

    Air France

    07:00 am

    ONT

    4.3h

    02:15 pm

    ATL

    SMTWTFS
    Search

  11. AF6695

    Air France

    04:50 pm

    ATL

    8.1h

    05:55 am

    AMS

    SMTWTFS

  12. KL1093

    KLM

    04:40 pm

    AMS

    1.3h

    04:55 pm

    CWL

    SMTWTFS

  13. VS3004

    Virgin Atlantic

    07:00 am

    ONT

    4.3h

    02:15 pm

    ATL

    SMTWTFS
    Search

  14. VS3932

    Virgin Atlantic

    05:35 pm

    ATL

    8.4h

    08:00 am

    AMS

    SMTWTFS

  15. KL1093

    KLM

    04:40 pm

    AMS

    1.3h

    04:55 pm

    CWL

    SMTWTFS

  16. DL761

    Delta Air Lines

    07:00 am

    ONT

    4.3h

    02:15 pm

    ATL

    SMTWTFS
    Search

  17. KL624

    KLM

    03:50 pm

    ATL

    8.1h

    05:55 am

    AMS

    SMTWTFS

  18. KL1087

    KLM

    09:00 am

    AMS

    1.3h

    09:15 am

    CWL

    SMTWTFS

  19. AF2559

    Air France

    07:00 am

    ONT

    4.3h

    02:15 pm

    ATL

    SMTWTFS
    Search

  20. AF6695

    Air France

    04:50 pm

    ATL

    8.1h

    05:55 am

    AMS

    SMTWTFS

  21. KL1087

    KLM

    09:00 am

    AMS

    1.3h

    09:15 am

    CWL

    SMTWTFS

  22. KL6401

    KLM

    07:00 am

    ONT

    4.1h

    02:05 pm

    ATL

    SMTWTFS
    Search

  23. KL624

    KLM

    03:50 pm

    ATL

    8.1h

    05:55 am

    AMS

    SMTWTFS

  24. KL1087

    KLM

    09:00 am

    AMS

    1.3h

    09:15 am

    CWL

    SMTWTFS

  25. DL665

    Delta Air Lines

    12:00 pm

    ONT

    4.3h

    07:18 pm

    ATL

    SMTWTFS
    Search

  26. VS3948

    Virgin Atlantic

    07:45 pm

    ATL

    8.8h

    10:30 am

    AMS

    SMTWTFS

  27. KL1093

    KLM

    04:40 pm

    AMS

    1.3h

    04:55 pm

    CWL

    SMTWTFS

  28. DL665

    Delta Air Lines

    12:00 pm

    ONT

    4.3h

    07:18 pm

    ATL

    SMTWTFS
    Search

  29. DL9375

    Delta Air Lines

    10:40 pm

    ATL

    8.5h

    01:10 pm

    AMS

    SMTWTFS

  30. DL9302

    Delta Air Lines

    04:40 pm

    AMS

    1.3h

    04:55 pm

    CWL

    SMTWTFS
Find more flights and airlines

When is the cheapest time to fly from Ontario to Cardiff?

We monitor flight fares to help you find the best deals effortlessly

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Frequently Asked Questions

  • When are flight tickets from Ontario (ONT) to Cardiff (CWL) the cheapest?

    Airlines adjust prices for flights from Ontario to Cardiff based on the departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.

  • How much do flights from Ontario (ONT) to Cardiff (CWL) cost?

    According to Trip.com's data, the lowest price is around NZD 2,425.

  • What is the transportation method from the main airport to downtown in Cardiff?

    • The distance from Cardiff Airport to downtown is about 15 km. It takes about 30 minutes by taxi.

How to find a cheap flight from Ontario to Cardiff

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Ontario to Cardiff. Book your flights at the right time and save more.
1
Book Early
Once prices are gone, they're gone. Lock in deals while you can!
2
Compare Flight Prices
Compare prices on travel agency and airline websites.
3
Look Out for Deals
Check airline and travel agency websites for latest flight deals
4
Check One-way Fares
Buying two cheap one-way flights can sometimes be a better deal than a round-trip.
5
Try Different Dates
Flying during the week, early in the morning, or late at night can help save money.
6
Use the Trip.com App
Save up to £10 per person when booking your flights on Trip.com

Flight Info | Ontario to Cardiff

Flight distance5,723.7 km
Popular airlineAir France

Contact Us

About

Other Services

Payment Methods
Our Partners
Copyright © 2025 Trip.com Travel Singapore Pte. Ltd. All rights reserved
Site Operator: Trip.com Travel Singapore Pte. Ltd.