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

ONT — SEL
Jan 31 — Feb 71

How far in advance should I book a flight from Ontario to Seoul?

To save on the cost of your flight from Ontario to Seoul, book at least 55 days before your planned departure. Booking around this time can save you about 20% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $1,549 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $1,655.

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

Due to multiple factors, expect to potentially pay more when booking in June. For low rates, November can be a great choice for travel to Seoul. Flights to Seoul from Ontario in November are about $1,311 on average during November, but can be found for as low as $750.

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

Unlike at noon, when flights are generally more expensive, you can save up to 2% on flights from Ontario to Seoul by exploring options for tickets in the morning.

Cheap flights from Ontario to Seoul in January, February 2023

The best prices found for ONT to SEL flights for January, February
Jan 31 - May 31
ONT

Ontario

ICN

Incheon Intl

1 stop

18h 45m
ICN

Incheon Intl

ONT

Ontario

1 stop

14h 27m
$999

Multiple Airlines

Pick Dates

Deal found 1/25

Jan 31 - Feb 13
ONT

Ontario

ICN

Incheon Intl

1 stop

18h 45m
ICN

Incheon Intl

ONT

Ontario

1 stop

15h 35m
$1,009

Hawaiian Airlines

Pick Dates

Deal found 1/25

Jan 31 - Feb 8
ONT

Ontario

ICN

Incheon Intl

1 stop

18h 45m
ICN

Incheon Intl

ONT

Ontario

1 stop

15h 35m
$1,037

Hawaiian Airlines

Pick Dates

Deal found 1/24

Ontario to Seoul 2023 flight deals

Cheap flights to Seoul from Ontario found for this year
Apr 11 - Apr 21
ONT

Ontario

ICN

Incheon Intl

1 stop

18h 45m
ICN

Incheon Intl

ONT

Ontario

1 stop

16h 56m
$997

Multiple Airlines

Pick Dates

Deal found 1/23

Oct 19 - Oct 25
ONT

Ontario

ICN

Incheon Intl

1 stop

17h 30m
ICN

Incheon Intl

ONT

Ontario

1 stop

14h 13m
$998

Multiple Airlines

Pick Dates

Deal found 1/26

Apr 16 - May 17
ONT

Ontario

ICN

Incheon Intl

1 stop

18h 45m
ICN

Incheon Intl

ONT

Ontario

1 stop

14h 27m
$999

Multiple Airlines

Pick Dates

Deal found 1/24

Cheap China Airlines flights from Ontario to Seoul

Apr 18 - Apr 27
ONT

Ontario

GMP

Seoul Gimpo Intl

1 stop

20h 35m
GMP

Seoul Gimpo Intl

ONT

Ontario

1 stop

20h 20m
$1,021

China Airlines

Pick Dates

Deal found 1/24

Mar 28 - Apr 13
ONT

Ontario

GMP

Seoul Gimpo Intl

1 stop

20h 35m
GMP

Seoul Gimpo Intl

ONT

Ontario

1 stop

20h 20m
$1,031

China Airlines

Pick Dates

Deal found 1/25

Apr 12 - Apr 27
ONT

Ontario

ICN

Incheon Intl

1 stop

19h 00m
ICN

Incheon Intl

ONT

Ontario

1 stop

21h 30m
$1,045

China Airlines

Pick Dates

Deal found 1/25

Cheap Hawaiian Airlines flights from Ontario to Seoul

Jan 31 - Feb 13
ONT

Ontario

ICN

Incheon Intl

1 stop

18h 45m
ICN

Incheon Intl

ONT

Ontario

1 stop

15h 35m
$1,009

Hawaiian Airlines

Pick Dates

Deal found 1/25

Jan 31 - Feb 8
ONT

Ontario

ICN

Incheon Intl

1 stop

18h 45m
ICN

Incheon Intl

ONT

Ontario

1 stop

15h 35m
$1,037

Hawaiian Airlines

Pick Dates

Deal found 1/24

Last minute flights from Ontario to Seoul

Late deals on return flights to Seoul from Ontario, departing today and this week
Jan 31 - May 31
ONT

Ontario

ICN

Incheon Intl

1 stop

18h 45m
ICN

Incheon Intl

ONT

Ontario

1 stop

14h 27m
$999

Multiple Airlines

Pick Dates

Deal found 1/25

Jan 31 - Feb 13
ONT

Ontario

ICN

Incheon Intl

1 stop

18h 45m
ICN

Incheon Intl

ONT

Ontario

1 stop

15h 35m
$1,009

Hawaiian Airlines

Pick Dates

Deal found 1/25

Jan 31 - Feb 8
ONT

Ontario

ICN

Incheon Intl

1 stop

18h 45m
ICN

Incheon Intl

ONT

Ontario

1 stop

15h 35m
$1,037

Hawaiian Airlines

Pick Dates

Deal found 1/24

One-way flights to Seoul from Ontario

The cheapest one-way flights from Ontario to Seoul
Mar 28
ONT

Ontario

GMP

Seoul Gimpo Intl

1 stop

20h 35m
$595

China Airlines

Pick Dates

Deal found 1/24

Mar 6
ONT

Ontario

ICN

Incheon Intl

2 stops

44h 20m
$598

Multiple Airlines

Pick Dates

Deal found 1/26

Apr 2
ONT

Ontario

ICN

Incheon Intl

1 stop

19h 00m
$627

China Airlines

Pick Dates

Deal found 1/24

Reviews of Airlines Servicing Seoul

China Airlines
8.6
Very good
38 reviews

Food

8.1

Comfort

8.5

Boarding

8.6

Crew

9.0

Overall

8.6

Entertainment

8.4

Reviews

1 / 6

Why did my flight take off an hour late - almost missed my connecting flight in Taipei - had to run across the airport there and made my flight by about 6 minutes. Too much stress to start a vacation with. The on-board entertainment system was surprisingly good and the food also quite good. Still, except for going home, I don’t think I will take a 14 hour light again.

China Airlines
8.6
Very good
38 reviews
China Airlines
8.6
Very good
38 reviews

Food

8.1

Comfort

8.5

Boarding

8.6

Crew

9.0

Overall

8.6

Entertainment

8.4

Reviews

1 / 6

Why did my flight take off an hour late - almost missed my connecting flight in Taipei - had to run across the airport there and made my flight by about 6 minutes. Too much stress to start a vacation with. The on-board entertainment system was surprisingly good and the food also quite good. Still, except for going home, I don’t think I will take a 14 hour light again.

Japan Airlines
7.8
Good
168 reviews
China Airlines
8.6
Very good
38 reviews

Food

8.1

Comfort

8.5

Boarding

8.6

Crew

9.0

Overall

8.6

Entertainment

8.4

Reviews

1 / 6

Why did my flight take off an hour late - almost missed my connecting flight in Taipei - had to run across the airport there and made my flight by about 6 minutes. Too much stress to start a vacation with. The on-board entertainment system was surprisingly good and the food also quite good. Still, except for going home, I don’t think I will take a 14 hour light again.

Related info for your journey

Useful info, stats and facts about Ontario to Seoul flights.

Which airlines flying from Ontario to Seoul have flexible cancellations due to COVID-19?

Some of our airline partners flying from Ontario to Seoul have new flexible policies in place due to COVID-19. Hawaiian Airlines, China Airlines, and United Airlines are some of the carriers where you may find flexible cancellation policies. You can use our site to filter for airlines like Hawaiian Airlines with this kind of flexibility.

Can I find flights from Ontario to Seoul for under $1,000 on Cheapflights?

Yes, there are multiple flights from Ontario to Seoul for under $1,000. The cheapest flight booked recently is on Multiple Airlines for just $997, but on average you can expect to pay $1,049.

Are there last-minute flights available from Ontario to Seoul for under $1,000?

There are currently 20+ open flights from Ontario to Seoul within the next 7 days for less than $1,000.

How popular is this Ontario to Seoul flight route?

This flight path from Ontario to Seoul was viewed by 22 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

What are the most popular airlines that fly from Ontario to Seoul?

Before booking your flight from Ontario to Seoul check out the most popular airlines for this route: China Airlines, Delta or Hawaiian Airlines.

What are the cheapest flights from Ontario to Seoul?

On average you can expect to pay $2,587 for a flight from Ontario to Seoul. The cheapest flight overall is $1,195 while the most popular route, (Ontario - Incheon Intl) is currently priced at $997.

Alternative routes for Ontario to Seoul

See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from Ontario to Seoul

The chart below displays the airlines Cheapflights users traveling from Ontario to Seoul choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
AirlineCheapestAverageFlexibilityOn-timeCOVID-19 safety
Hawaiian AirlinesCheapest$853Average$1,229FlexibilityNo cancel feeOn-time85%COVID-19 safety
Search Hawaiian Airlines flights
China AirlinesCheapest$1,221Average$1,228FlexibilityNo cancel feeOn-time70%COVID-19 safety
Search China Airlines flights
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.