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Cheap flight deals from Ontario to Ulsan Starting at €650

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

  • One way
  • Round-trip
      • ONT12:10 am
        46h 15m
        2 stops
        USN02:25 pm
        Mon, Apr 28|Ontario - Ulsan|China Airlines
        €650€977
        33% OFF
        33% OFF
        €977€650

        Choose China Airlines flights from Ontario to Ulsan. The one-way connecting flight with China Airlines departs from Ontario International Airport on Mon, Apr 28, arriving at Ulsan Airport. One-way Prices start from €650 including taxes and charges.

      • ONT12:10 am
        46h 15m
        2 stops
        USN02:25 pm
        Sun, Apr 20|Ontario - Ulsan|China Airlines
        €677€977
        31% OFF
        31% OFF
        €977€677

        Choose China Airlines flights from Ontario to Ulsan. The one-way connecting flight with China Airlines departs from Ontario International Airport on Sun, Apr 20, arriving at Ulsan Airport. One-way Prices start from €677 including taxes and charges.

      • ONT12:10 am
        46h 15m
        2 stops
        USN02:25 pm
        Sun, Mar 30|Ontario - Ulsan|China Airlines
        €685€977
        30% OFF
        30% OFF
        €977€685

        Choose China Airlines flights from Ontario to Ulsan. The one-way connecting flight with China Airlines departs from Ontario International Airport on Sun, Mar 30, arriving at Ulsan Airport. One-way Prices start from €685 including taxes and charges.

      • ONT05:40 am
        40h 45m
        2 stops
        USN02:25 pm
        Sun, Mar 30|Ontario - Ulsan|Korean Air
        €697
        €697

        Choose Korean Air flights from Ontario to Ulsan. The one-way connecting flight with Korean Air departs from Ontario International Airport on Sun, Mar 30, arriving at Ulsan Airport. One-way Prices start from €697 including taxes and charges.

      • ONT12:10 am
        27h 25m
        2 stops
        USN07:35 pm
        Tue, Apr 1|Ontario - Ulsan|China Airlines
        €698
        €698

        Choose China Airlines flights from Ontario to Ulsan. The one-way connecting flight with China Airlines departs from Ontario International Airport on Tue, Apr 1, arriving at Ulsan Airport. One-way Prices start from €698 including taxes and charges.

      • ONT05:40 am
        35h 10m
        2 stops
        USN08:50 am
        Wed, Mar 19|Ontario - Ulsan|Korean Air
        €707
        €707

        Choose Korean Air flights from Ontario to Ulsan. The one-way connecting flight with Korean Air departs from Ontario International Airport on Wed, Mar 19, arriving at Ulsan Airport. One-way Prices start from €707 including taxes and charges.

      • ONT05:40 am
        39h 55m
        2 stops
        USN01:35 pm
        Thu, Mar 20|Ontario - Ulsan|Korean Air
        €713
        €713

        Choose Korean Air flights from Ontario to Ulsan. The one-way connecting flight with Korean Air departs from Ontario International Airport on Thu, Mar 20, arriving at Ulsan Airport. One-way Prices start from €713 including taxes and charges.

      • ONT05:40 am
        34h 40m
        2 stops
        USN08:20 am
        Sun, Mar 30|Ontario - Ulsan|Delta Air Lines
        €715
        €715

        Choose Delta Air Lines flights from Ontario to Ulsan. The one-way connecting flight with Delta Air Lines departs from Ontario International Airport on Sun, Mar 30, arriving at Ulsan Airport. One-way Prices start from €715 including taxes and charges.

      • ONT11:45 pm
        27h 50m
        2 stops
        USN07:35 pm
        Fri, Mar 14|Ontario - Ulsan|China Airlines
        €727
        €727

        Choose China Airlines flights from Ontario to Ulsan. The one-way connecting flight with China Airlines departs from Ontario International Airport on Fri, Mar 14, arriving at Ulsan Airport. One-way Prices start from €727 including taxes and charges.

      • ONT05:40 am
        40h 45m
        2 stops
        USN02:25 pm
        Sun, Apr 20|Ontario - Ulsan|Korean Air
        €736
        €736

        Choose Korean Air flights from Ontario to Ulsan. The one-way connecting flight with Korean Air departs from Ontario International Airport on Sun, Apr 20, arriving at Ulsan Airport. One-way Prices start from €736 including taxes and charges.

      • ONT01:00 pm
        3h 5m
        Nonstop
        USN02:00 pm
        Sat, Mar 1|Ontario - Ulsan|China 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 Ulsan Flight Time

Flight info.
Departure
Arrival
Weekly Schedule

  1. UA277

    United Airlines

    06:00 am

    ONT

    1.5h

    07:29 am

    SFO

    SMTWTFS
    Search

  2. UA893

    United Airlines

    10:35 am

    SFO

    13.7h

    04:15 pm

    ICN

    SMTWTFS

  3. KE1843

    Korean Air

    07:50 am

    GMP

    1.0h

    08:50 am

    USN

    SMTWTFS

  4. KE3098

    Korean Air

    07:00 am

    ONT

    3.0h

    10:03 am

    SEA

    SMTWTFS
    Search

  5. KE042

    Korean Air

    12:50 pm

    SEA

    11.8h

    04:40 pm

    ICN

    SMTWTFS

  6. LJ655

    Jin Air

    12:35 pm

    GMP

    1.0h

    01:35 pm

    USN

    SMTWTFS

  7. DL4042

    Delta Air Lines

    07:00 am

    ONT

    3.1h

    10:04 am

    SEA

    SMTWTFS
    Search

  8. DL197

    Delta Air Lines

    11:15 am

    SEA

    13.4h

    04:40 pm

    ICN

    SMTWTFS

  9. LJ655

    Jin Air

    12:35 pm

    GMP

    1.0h

    01:35 pm

    USN

    SMTWTFS

  10. DL4042

    Delta Air Lines

    07:00 am

    ONT

    3.1h

    10:04 am

    SEA

    SMTWTFS
    Search

  11. DL7838

    Delta Air Lines

    12:50 pm

    SEA

    11.8h

    04:40 pm

    ICN

    SMTWTFS

  12. KE1843

    Korean Air

    07:50 am

    GMP

    1.0h

    08:50 am

    USN

    SMTWTFS

  13. KE3098

    Korean Air

    07:00 am

    ONT

    3.0h

    10:03 am

    SEA

    SMTWTFS
    Search

  14. KE042

    Korean Air

    12:50 pm

    SEA

    11.8h

    04:40 pm

    ICN

    SMTWTFS

  15. KE1843

    Korean Air

    07:50 am

    GMP

    1.0h

    08:50 am

    USN

    SMTWTFS

  16. DL4042

    Delta Air Lines

    07:00 am

    ONT

    3.1h

    10:04 am

    SEA

    SMTWTFS
    Search

  17. DL197

    Delta Air Lines

    11:15 am

    SEA

    13.4h

    04:40 pm

    ICN

    SMTWTFS

  18. KE1843

    Korean Air

    07:50 am

    GMP

    1.0h

    08:50 am

    USN

    SMTWTFS

  19. UA5394

    United Airlines

    07:40 pm

    ONT

    1.6h

    09:13 pm

    SFO

    SMTWTFS
    Search

  20. UA805

    United Airlines

    11:45 pm

    SFO

    13.9h

    05:40 am

    ICN

    SMTWTFS

  21. LJ655

    Jin Air

    12:35 pm

    GMP

    1.0h

    01:35 pm

    USN

    SMTWTFS

  22. HA079

    Hawaiian Airlines

    09:50 am

    ONT

    5.9h

    12:45 pm

    HNL

    SMTWTFS
    Search

  23. HA459

    Hawaiian Airlines

    12:50 pm

    HNL

    11.6h

    07:25 pm

    ICN

    -M-WTFS

  24. KE1843

    Korean Air

    07:50 am

    GMP

    1.0h

    08:50 am

    USN

    SMTWTFS

  25. CI023

    China Airlines

    10:45 pm

    ONT

    14.8h

    05:30 am

    TPE

    SMTWTFS
    Search

  26. CI162

    China Airlines

    04:00 pm

    TPE

    2.6h

    07:35 pm

    ICN

    SMTWTFS

  27. LJ655

    Jin Air

    12:35 pm

    GMP

    1.0h

    01:35 pm

    USN

    SMTWTFS

  28. CI023

    China Airlines

    10:45 pm

    ONT

    14.8h

    05:30 am

    TPE

    SMTWTFS
    Search

  29. CI160

    China Airlines

    07:40 am

    TPE

    2.6h

    11:15 am

    ICN

    SMTWTFS

  30. KE1847

    Korean Air

    06:35 pm

    GMP

    1.0h

    07:35 pm

    USN

    SMTWTFS
Find more flights and airlines

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

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 Ulsan (USN) the cheapest?

    Airlines adjust prices for flights from Ontario to Ulsan 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 Ulsan (USN) cost?

    According to Trip.com's data, the lowest price is around €1,302.

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

    • The distance from Ulsan Airport to downtown is about 7 km. It takes about 20 minutes by taxi.

How to find a cheap flight from Ontario to Ulsan

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 Ulsan. 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 Ulsan

Flight distance13,458.84 km
Popular airlineChina Airlines

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