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Cheap flights from Seoul (SEL) to Ontario (ONT) from $332

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/18. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
SEL — ONT
May 10 — May 171
From?
To?
Fri 5/10
Fri 5/17
1 adult, Economy
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How far in advance should I book a flight from Seoul to Ontario?

To save on the cost of your flight from Seoul to Ontario, book at least 59 days before your planned departure. Booking around this time can save you about 26% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $1,327 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $1,551.

What is the cheapest month to fly from Seoul to Ontario?

November is one of the best times of the year to fly to Ontario from Seoul. Prices for November average $1,179 per person but you can even find prices for as low as $541. The most expensive prices can be found in the month of August. Opting for a November flight can save you 34% on your journey compared to booking in August

When is the cheapest time to fly from Seoul to Ontario (SEL - ONT)?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Seoul to Ontario as you normally would.

Cheap United Airlines flights from Seoul to Ontario

Explore cheap flight options specifically provided by United Airlines for the route between Seoul and Ontario. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,719,943 searches. Data last updated May 5, 2024.
Find some of the cheapest United Airlines flights traveling from Seoul to Ontario. It's recommended that users confirm their flight details before booking.
Tue 10/2211:30 amICN - ONT
2 stops25h 02mUnited Airlines
Wed 10/231:30 pmONT - ICN
2 stops22h 50mUnited Airlines
Deal found 5/3$588
Thu 9/124:50 pmICN - ONT
1 stop17h 06mUnited Airlines
Thu 9/197:40 amONT - ICN
1 stop15h 20mUnited Airlines
Deal found 5/5$589
Thu 9/2611:30 amICN - ONT
1 stop14h 28mUnited Airlines
Mon 10/76:35 pmONT - ICN
1 stop17h 45mUnited Airlines
Deal found 5/4$590
Thu 9/1911:30 amICN - ONT
1 stop14h 37mUnited Airlines
Sun 9/226:25 pmONT - ICN
2 stops28h 35mUnited Airlines
Deal found 5/5$595
Tue 9/1711:30 amICN - ONT
1 stop14h 37mUnited Airlines
Sat 9/216:45 pmONT - ICN
1 stop17h 35mUnited Airlines
Deal found 5/5$641
Thu 9/2611:30 amICN - ONT
1 stop14h 28mUnited Airlines
Sun 10/66:35 pmONT - ICN
1 stop17h 45mUnited Airlines
Deal found 5/4$643
Sun 9/1511:30 amICN - ONT
1 stop22h 26mUnited Airlines
Wed 9/187:40 amONT - ICN
1 stop15h 20mUnited Airlines
Deal found 5/5$644
Sat 9/284:50 pmICN - ONT
1 stop22h 06mUnited Airlines
Wed 10/96:20 pmONT - ICN
2 stops28h 40mUnited Airlines
Deal found 5/4$649
Sat 9/284:50 pmICN - ONT
1 stop36h 17mUnited Airlines
Wed 10/91:55 pmONT - ICN
1 stop33h 05mUnited Airlines
Deal found 5/4$656

Cheap American Airlines flights from Seoul to Ontario

Explore cheap flight options specifically provided by American Airlines for the route between Seoul and Ontario. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,719,943 searches. Data last updated May 5, 2024.
To aid your search, here are some of the cheapest American Airlines flights we've found from Seoul to Ontario. If these deals don't fit your criteria, make sure to check back soon as new deals are always added.
Tue 9/105:25 pmICN - ONT
1 stop20h 17mAmerican Airlines
Sun 9/2211:59 pmONT - ICN
1 stop23h 16mAmerican Airlines
Deal found 5/4$849
Thu 10/35:25 pmICN - ONT
1 stop20h 17mAmerican Airlines
Sun 10/611:59 pmONT - ICN
1 stop23h 16mAmerican Airlines
Deal found 5/5$883
Sat 6/85:25 pmICN - ONT
1 stop17h 32mAmerican Airlines
Sun 6/2311:59 pmONT - ICN
1 stop23h 16mAmerican Airlines
Deal found 5/4$904
Sat 9/145:25 pmICN - ONT
1 stop20h 17mAmerican Airlines
Tue 9/1711:59 pmONT - ICN
1 stop23h 16mAmerican Airlines
Deal found 5/3$930
Fri 6/75:25 pmICN - ONT
1 stop22h 34mAmerican Airlines
Tue 6/1811:59 pmONT - ICN
1 stop23h 16mAmerican Airlines
Deal found 5/4$931
Sat 10/265:25 pmICN - ONT
1 stop20h 17mAmerican Airlines
Tue 11/511:59 pmONT - ICN
1 stop23h 26mAmerican Airlines
Deal found 5/4$937
Sat 6/85:25 pmICN - ONT
2 stops20h 15mAmerican Airlines
Sun 6/2311:59 pmONT - ICN
1 stop23h 16mAmerican Airlines
Deal found 5/4$954
Sat 9/145:25 pmICN - ONT
1 stop20h 17mAmerican Airlines
Sat 9/2111:59 pmONT - ICN
1 stop23h 16mAmerican Airlines
Deal found 5/5$959
Thu 9/265:25 pmICN - ONT
2 stops20h 19mAmerican Airlines
Sun 10/611:59 pmONT - ICN
1 stop23h 16mAmerican Airlines
Deal found 5/4$995

Cheap Seoul to Ontario flights in May & June 2024

Find cheap flight options from Seoul to Ontario specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,719,943 searches. Prices were last updated on May 5, 2024.
These are some of the most attractive deals on flights from Seoul to Ontario in 2024. If these deals don't appeal to you, be sure to come back soon for more options.
Sun 5/54:50 pmICN - ONT
2 stops35h 50mUnited Airlines
Thu 5/96:00 amONT - ICN
1 stop30h 20mUnited Airlines
Deal found 5/4$643
Thu 6/134:50 pmICN - ONT
1 stop21h 37mUnited Airlines
Mon 6/246:25 pmONT - ICN
2 stops28h 35mUnited Airlines
Deal found 5/4$805
Thu 5/911:30 amICN - ONT
1 stop14h 31mUnited Airlines
Mon 5/136:00 amONT - ICN
1 stop30h 20mUnited Airlines
Deal found 5/4$809
Fri 5/104:50 pmICN - ONT
1 stop33h 11mUnited Airlines
Mon 5/136:00 amONT - ICN
1 stop30h 20mUnited Airlines
Deal found 5/4$822
Fri 5/104:50 pmICN - ONT
2 stops35h 50mUnited Airlines
Mon 5/136:00 amONT - ICN
1 stop30h 20mUnited Airlines
Deal found 5/4$833
Tue 5/2811:30 amICN - ONT
2 stops21h 58mUnited Airlines
Fri 12/276:42 pmONT - ICN
1 stop28h 33mUnited Airlines
Deal found 5/4$856
Wed 5/811:30 amICN - ONT
2 stops25h 23mUnited Airlines
Sun 5/126:00 amONT - ICN
1 stop30h 20mUnited Airlines
Deal found 5/5$858
Mon 5/64:50 pmICN - ONT
1 stop22h 14mUnited Airlines
Tue 5/211:36 pmONT - ICN
2 stops33h 24mUnited Airlines
Deal found 5/3$881
Tue 5/711:30 amICN - ONT
1 stop27h 34mUnited Airlines
Tue 5/141:36 pmONT - ICN
2 stops33h 24mUnited Airlines
Deal found 5/5$883

Seoul to Ontario 2024 flight deals

Discover exclusive flight deals for travel between Seoul and Ontario in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,719,943 searches. Data last updated May 5, 2024.
These are some of the most attractive deals on flights from Seoul to Ontario in 2024. If these deals don't appeal to you, be sure to come back soon for more options.
Tue 10/2211:30 amICN - ONT
2 stops25h 02mUnited Airlines
Wed 10/231:30 pmONT - ICN
2 stops22h 50mUnited Airlines
Deal found 5/3$588
Thu 9/124:50 pmICN - ONT
1 stop17h 06mUnited Airlines
Thu 9/197:40 amONT - ICN
1 stop15h 20mUnited Airlines
Deal found 5/5$589
Thu 9/2611:30 amICN - ONT
1 stop14h 28mUnited Airlines
Mon 10/76:35 pmONT - ICN
1 stop17h 45mUnited Airlines
Deal found 5/4$590
Thu 9/1911:30 amICN - ONT
1 stop14h 37mUnited Airlines
Sun 9/226:25 pmONT - ICN
2 stops28h 35mUnited Airlines
Deal found 5/5$595
Tue 9/1711:30 amICN - ONT
1 stop14h 37mUnited Airlines
Sat 9/216:45 pmONT - ICN
1 stop17h 35mUnited Airlines
Deal found 5/5$641
Sun 5/54:50 pmICN - ONT
2 stops35h 50mUnited Airlines
Thu 5/96:00 amONT - ICN
1 stop30h 20mUnited Airlines
Deal found 5/4$643
Sun 9/1511:30 amICN - ONT
1 stop22h 26mUnited Airlines
Wed 9/187:40 amONT - ICN
1 stop15h 20mUnited Airlines
Deal found 5/5$644
Sat 11/96:05 pmICN - ONT
2 stops35h 28mUnited Airlines
Fri 11/156:00 amONT - ICN
1 stop17h 15mUnited Airlines
Deal found 5/5$645
Sat 9/284:50 pmICN - ONT
1 stop22h 06mUnited Airlines
Wed 10/96:20 pmONT - ICN
2 stops28h 40mUnited Airlines
Deal found 5/4$649

Seoul to Ontario flights leaving soon

Find last-minute flight options from Seoul to Ontario for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,719,943 searches. Data last updated May 5, 2024.
Have a look at some of the flights available from Seoul to Ontario departing last-minute. Users should double check the flight they book to ensure it matches the day, time, and destination they're looking for.
Fri 5/104:50 pmICN - ONT
1 stop33h 11mUnited Airlines
Mon 5/136:00 amONT - ICN
1 stop30h 20mUnited Airlines
Deal found 5/4$822
Fri 5/104:50 pmICN - ONT
2 stops35h 50mUnited Airlines
Mon 5/136:00 amONT - ICN
1 stop30h 20mUnited Airlines
Deal found 5/4$833
Mon 5/1311:30 amICN - ONT
1 stop14h 31mUnited Airlines
Tue 5/211:36 pmONT - ICN
2 stops33h 24mUnited Airlines
Deal found 5/4$881
Fri 5/1011:30 amICN - ONT
1 stop14h 31mUnited Airlines
Tue 5/141:36 pmONT - ICN
2 stops33h 24mUnited Airlines
Deal found 5/5$883
Mon 5/134:50 pmICN - ONT
1 stop22h 14mUnited Airlines
Sun 5/265:15 amONT - ICN
2 stops31h 05mUnited Airlines
Deal found 5/4$1,016
Tue 5/1412:35 pmICN - ONT
1 stop21h 30mChina Airlines
Wed 5/1512:10 amONT - ICN
1 stop27h 35mChina Airlines
Deal found 5/3$1,122
Mon 5/139:25 pmICN - ONT
1 stop16h 40mHawaiian Airlines
Sat 5/258:30 amONT - ICN
1 stop18h 30mHawaiian Airlines
Deal found 5/4$1,221
Mon 5/139:25 pmICN - ONT
1 stop16h 40mHawaiian Airlines
Sat 5/258:30 amONT - ICN
1 stop18h 30mHawaiian Airlines
Deal found 5/5$1,224
Wed 5/158:50 pmICN - ONT
1 stop37h 15mChina Airlines
Fri 5/1712:10 amONT - ICN
1 stop19h 00mChina Airlines
Deal found 5/4$1,227

One-way flights to Ontario from Seoul

Search for one-way flight options from Seoul to Ontario. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,719,943 searches. Data last updated May 5, 2024.
Users in need of a one-way flight from Seoul to Ontario can choose from these deals. Users in need of a round-trip flight from Seoul to Ontario instead should update the search form at the top of page.
Wed 9/1811:30 amICN - ONT
2 stops25h 32mUnited Airlines
Deal found 5/5$332
Wed 9/1811:30 amICN - ONT
2 stops21h 52mUnited Airlines
Deal found 5/4$333
Mon 9/2311:30 amICN - ONT
2 stops25h 32mUnited Airlines
Deal found 5/5$334
Thu 10/1011:30 amICN - ONT
2 stops25h 02mUnited Airlines
Deal found 5/4$336
Fri 5/1011:30 amICN - ONT
1 stop14h 31mUnited Airlines
Deal found 5/4$337
Mon 5/2011:30 amICN - ONT
2 stops25h 23mUnited Airlines
Deal found 5/4$342
Fri 5/104:50 pmICN - ONT
2 stops35h 50mUnited Airlines
Deal found 5/4$355
Sat 5/1811:30 amICN - ONT
1 stop14h 31mUnited Airlines
Deal found 5/4$402
Sat 5/114:50 pmICN - ONT
2 stops35h 50mUnited Airlines
Deal found 5/4$403

Find flights from Seoul to Ontario within your budget

Customize your flight search to find flights from Seoul to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,719,943 searches. Data last updated May 5, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$588 - $1,383

Route

Depart

Return

Price

Incheon IntlOntario

ICN - ONT

ICNONT

Incheon Intl

Tue 10/22

2 stops25h 02m

Ontario

Wed 10/23

2 stops22h 50m

$588

Incheon IntlOntario

ICN - ONT

ICNONT

Incheon Intl

Thu 9/12

1 stop17h 06m

Ontario

Thu 9/19

1 stop15h 20m

$589

Incheon IntlOntario

ICN - ONT

ICNONT

Incheon Intl

Thu 9/26

1 stop14h 28m

Ontario

Mon 10/7

1 stop17h 45m

$590

Incheon IntlOntario

ICN - ONT

ICNONT

Incheon Intl

Thu 9/19

1 stop14h 37m

Ontario

Sun 9/22

2 stops28h 35m

$595

Incheon IntlOntario

ICN - ONT

ICNONT

Incheon Intl

Tue 9/10

1 stop20h 17m

Ontario

Sun 9/22

1 stop23h 16m

$849

Incheon IntlOntario

ICN - ONT

ICNONT

Incheon Intl

Wed 9/4

1 stop37h 50m

Ontario

Mon 9/9

1 stop18h 25m

$975

Seoul Gimpo IntlOntario

GMP - ONT

GMPONT

Seoul Gimpo Intl

Tue 9/10

2 stops21h 30m

Ontario

Tue 9/24

2 stops26h 01m

$1,137

Incheon IntlOntario

ICN - ONT

ICNONT

Incheon Intl

Sun 6/23

1 stop16h 20m

Ontario

Tue 8/13

1 stop17h 10m

$1,206

Incheon IntlOntario

ICN - ONT

ICNONT

Incheon Intl

Thu 9/12

1 stop14h 43m

Ontario

Fri 9/20

1 stop17h 40m

$1,383

Flights are sorted by cheapest first

Deals found on 5/3

No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated May 5, 2024.
Read reviews from past customers who have flown United Airlines, American Airlines and China Airlines from Seoul to Ontario. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.5
Very good
1,185 reviews
Check prices

Food

8.2

Overall

8.5

Entertainment

8.2

Boarding

8.6

Comfort

8.3

Crew

8.8

Reviews

1 / 10

Young happy helpful cabin staff. Clean aircraft. No complaints. Very impressive

Korean Air
8.5
Very good
1,185 reviews
Korean Air
8.5
Very good
1,185 reviews
Check prices

Food

8.2

Overall

8.5

Entertainment

8.2

Boarding

8.6

Comfort

8.3

Crew

8.8

Reviews

1 / 10

Young happy helpful cabin staff. Clean aircraft. No complaints. Very impressive

Japan Airlines
8.3
Very good
1,482 reviews
Korean Air
8.5
Very good
1,185 reviews
Check prices

Food

8.2

Overall

8.5

Entertainment

8.2

Boarding

8.6

Comfort

8.3

Crew

8.8

Reviews

1 / 10

Young happy helpful cabin staff. Clean aircraft. No complaints. Very impressive

China Airlines
8.3
Very good
941 reviews
Korean Air
8.5
Very good
1,185 reviews
Check prices

Food

8.2

Overall

8.5

Entertainment

8.2

Boarding

8.6

Comfort

8.3

Crew

8.8

Reviews

1 / 10

Young happy helpful cabin staff. Clean aircraft. No complaints. Very impressive

Delta
8.1
Very good
10,826 reviews
Korean Air
8.5
Very good
1,185 reviews
Check prices

Food

8.2

Overall

8.5

Entertainment

8.2

Boarding

8.6

Comfort

8.3

Crew

8.8

Reviews

1 / 10

Young happy helpful cabin staff. Clean aircraft. No complaints. Very impressive

Hawaiian Airlines
8.0
Very good
2,322 reviews
Korean Air
8.5
Very good
1,185 reviews
Check prices

Food

8.2

Overall

8.5

Entertainment

8.2

Boarding

8.6

Comfort

8.3

Crew

8.8

Reviews

1 / 10

Young happy helpful cabin staff. Clean aircraft. No complaints. Very impressive

Related info for your journey

Find useful and relevant information for your journey from Seoul to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Ontario from Seoul?

    If you book a flight to Ontario from Seoul, you will be flying to Ontario, which is the city’s only airport. Ontario (ONT) is located 3.1 mi from the center of Ontario. There are 0 flights from Seoul to Ontario per day from 1 airline.

  • Can I find flights from Seoul to Ontario for under $600 on Cheapflights?

    Yes, there are multiple flights from Seoul to Ontario for under $600. The cheapest flight booked recently is on United Airlines for just $588, but on average you can expect to pay $729.

  • Are there last-minute flights available from Seoul to Ontario for under $900?

    There are currently 20+ open flights from Seoul to Ontario within the next 7 days for less than $900.

  • What are the cheapest airlines to fly from Seoul to Ontario one-way?

    For one-way options, check prices for United Airlines. According to our data, you can fly for as low as $332. Users have also found prices from $442 and $568 on American Airlines and Hawaiian Airlines, respectively.

  • What does ICN to ONT mean?

    This is defined as Incheon Intl Airport (ICN) and Ontario Airport (ONT). Codes like Ontario Airport are often used to just call airports uniquely.

  • Can I find deals for flights from Seoul to Ontario that include extra baggage allowance?

    The amount of baggage you can bring on your Seoul to Ontario flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Seoul to Ontario with specific airlines?

    Yes, Cheapflights allows you to browse and filter Seoul to Ontario flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Seoul to Ontario that include hotel bookings?

    Yes. In addition to deals on Seoul to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seoul to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seoul to Ontario.

  • Can I find deals for business class flights from Seoul to Ontario?

    Yes. Cheapflights offers flight deals from Seoul to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Seoul to Ontario that allow pets onboard?

    Many airlines flying from Seoul to Ontario offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Seoul to Ontario?

    Yes, you can often find last-minute deals on Seoul to Ontario flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Seoul to Ontario flight deals updated?

    The Seoul to Ontario flight deals you see on this page were last updated on 5/5.

See more FAQs

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Alternative routes for Seoul to Ontario
See prices for flight routes from nearby airports that may be better suited for you.

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Top airline flying from Seoul to Ontario

Discover the top airline that operate flights from Seoul to Ontario. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,719,943 searches. Data last updated May 5, 2024.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$728Average$816FlexibilityNo cancel feeOn-time69%
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Search flights from Seoul to Ontario by cabin class

Find flights from Seoul to Ontario, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
Business Class
Prem Econ Class
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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Seoul to Ontario?

When you search for this flight from Seoul to Ontario, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Seoul to Ontario?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Ontario from Seoul.

Can Cheapflights find flights from Seoul to Ontario with no change fees?

Need flexible booking options for your flight to Ontario from Seoul? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Seoul to Ontario become cheaper?

Not ready to book yet? You can track prices for flights from Seoul to Ontario on Cheapflights with our Price Alert feature and get notified when better prices are available.

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