What are the cheapest airlines flying from Ontario to Seoul round-trip?

According to our current data, China Airlines ($979), Korean Air ($1,360), and Delta ($1,375) offers the cheapest pricing from Ontario to Seoul. China Airlines is 30% cheaper than the average price of flights available within the next 90 days to this destination.

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

The cheapest airlines for a one-way flight from Ontario to Seoul are China Airlines ($574), WestJet ($579), and Philippine Airlines ($725).

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

Travelers seeking maximum savings on their Ontario to Seoul flight should consider departing on Tuesday evenings when fares are most often at their lowest. Wednesday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

What is the cheapest day to fly round-trip from Ontario to Seoul?

Saturday flights are generally found to be more expensive for flights from Ontario to Seoul. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Seoul.

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 12 days before your planned departure. Booking around this time can save you about 23% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $661 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $937.

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, February can be a great choice for travel to Seoul. Flights to Seoul from Ontario in February are about $1,104 on average during February, but can be found for as low as $413.

Most accurate provider : When it comes to deals on Ontario-Seoul flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Seoul flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Seoul flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Ontario-Seoul flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Seoul flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

Ontario (ONT), located 3.1 mi from the city center, is the airport you fly out of when you book flights from Ontario to Seoul. 2 airlines have flights from Ontario to Seoul on a regular basis. Booking flights from Ontario to Seoul should not be difficult; the airport handles an average of 0 outbound flights to Seoul per day.

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

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

How can I find direct flights from Ontario to Seoul?

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

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

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

$423+ Flights from Ontario to Seoul

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from Ontario to Seoul with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Ontario to Seoul

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$977 (Trip.com)
One-way from	$423 (Trip.com)
Popular in	December
Cheapest in	February
Average price	$1,056

Provider with most accurate pricing for Ontario-Seoul (SEL) flight deals.

Search Deals

Provider most trusted by Cheapflights users for Ontario-Seoul (SEL) flights.

Search Deals

From Ontario to Seoul (SEL)

Search Deals

One-way flight from Ontario to Seoul (SEL)

Search Deals

Highest demand for flights based on searches. 14% potential increase in price ($236 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 7% potential price decrease ($93 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in March 2025

Search Deals

Find flight deals from Ontario to Seoul

Cheapest flights from Ontario to Seoul
Explore the most affordable flight options available from Ontario to Seoul. Find the lowest fares from popular airlines and budget airlines, with prices last updated on marzo 25, 2025.

mar. 10/2112:10 amONT - ICN

1 stop19h 05mChina Airlines

mar. 10/2812:25 pmICN - ONT

1 stop21h 25mChina Airlines

Deal found 3/24

$972

sáb. 5/108:24 amONT - ICN

1 stop20h 06mMultiple Airlines

dom. 5/256:20 pmICN - ONT

1 stop21h 16mMultiple Airlines

Deal found 3/25

$977

mié. 3/265:40 amONT - ICN

1 stop18h 15mKorean Air

mié. 4/24:40 pmICN - ONT

1 stop16h 02mKorean Air

Deal found 3/24

$1,336

mié. 4/912:10 amONT - GMP

2 stops26h 20mMultiple Airlines

lun. 4/218:20 amGMP - ONT

2 stops25h 40mMultiple Airlines

Deal found 3/24

$1,419

Best flights from Ontario to Seoul
Discover carefully curated flight deals from Ontario to Seoul that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated marzo 25, 2025.

sáb. 5/108:24 amONT - ICN

1 stop20h 06mMultiple Airlines

dom. 5/256:20 pmICN - ONT

1 stop21h 16mMultiple Airlines

Deal found 3/25

$977

mar. 4/812:10 amONT - ICN

1 stop27h 25mChina Airlines

mié. 6/48:35 pmICN - ONT

1 stop37h 25mChina Airlines

Deal found 3/24

$979

lun. 9/157:00 amONT - ICN

1 stop17h 40mKorean Air

lun. 9/224:40 pmICN - ONT

1 stop16h 42mKorean Air

Deal found 3/24

$1,360

jue. 4/105:40 amONT - ICN

1 stop18h 50mDelta

mié. 4/167:20 pmICN - ONT

1 stop19h 23mDelta

Deal found 3/23

$1,375

mié. 4/2311:59 pmONT - ICN

1 stop23h 31mAmerican Airlines

mié. 4/305:25 pmICN - ONT

1 stop20h 45mAmerican Airlines

Deal found 3/24

$1,418

mié. 4/237:05 amONT - ICN

1 stop15h 55mUnited Airlines

jue. 5/154:50 pmICN - ONT

1 stop13h 35mUnited Airlines

Deal found 3/25

$1,475

mar. 5/2711:46 amONT - ICN

2 stops38h 59mWestJet

jue. 6/128:45 pmICN - ONT

2 stops36h 20mWestJet

Deal found 3/25

$1,491

lun. 9/111:39 amONT - ICN

2 stops37h 26mQatar Airways

dom. 9/71:20 amICN - ONT

2 stops38h 39mQatar Airways

Deal found 3/24

$1,534

mié. 4/912:10 amONT - GMP

2 stops26h 20mMultiple Airlines

lun. 4/218:20 amGMP - ONT

2 stops25h 40mMultiple Airlines

Deal found 3/24

$1,419

Last-minute flights from Ontario to Seoul
Discover last-minute flight deals from Ontario to Seoul. Data last updated marzo 25, 2025 and is based on user searches.

mié. 3/265:40 amONT - ICN

1 stop18h 15mKorean Air

mié. 4/24:40 pmICN - ONT

1 stop16h 02mKorean Air

Deal found 3/24

$1,336

mié. 3/265:40 amONT - ICN

1 stop18h 35mDelta

mié. 4/24:40 pmICN - ONT

1 stop16h 02mDelta

Deal found 3/23

$1,375

dom. 3/3011:59 pmONT - ICN

1 stop23h 31mAmerican Airlines

dom. 4/65:25 pmICN - ONT

1 stop20h 45mAmerican Airlines

Deal found 3/25

$1,425

lun. 3/318:26 amONT - ICN

1 stop20h 04mMultiple Airlines

lun. 4/79:30 pmICN - ONT

2 stops33h 34mMultiple Airlines

Deal found 3/25

$998

lun. 3/315:40 amONT - ICN

1 stop19h 00mKorean Air

vie. 4/44:40 pmICN - ONT

1 stop16h 04mKorean Air

Deal found 3/25

$1,429

lun. 3/316:00 amONT - ICN

1 stop17h 00mUnited Airlines

mié. 4/3011:30 amICN - ONT

1 stop15h 35mUnited Airlines

Deal found 3/24

$1,475

lun. 3/317:17 pmONT - ICN

2 stops31h 43mAlaska Airlines

dom. 4/69:25 pmICN - ONT

2 stops42h 34mAlaska Airlines

Deal found 3/24

$1,833

lun. 3/317:00 amONT - ICN

2 stops41h 40mKLM

dom. 4/610:25 pmICN - ONT

2 stops40h 11mKLM

Deal found 3/25

$2,134

lun. 3/316:39 pmONT - ICN

2 stops29h 26mAir Canada

lun. 4/75:45 pmICN - ONT

2 stops21h 10mAir Canada

Deal found 3/25

$5,495

mar. 4/112:10 amONT - ICN

1 stop27h 25mChina Airlines

mié. 6/48:35 pmICN - ONT

1 stop37h 25mChina Airlines

Deal found 3/24

$995

mar. 4/15:40 amONT - ICN

1 stop18h 50mDelta

mar. 4/87:20 pmICN - ONT

1 stop19h 04mDelta

Deal found 3/25

$1,375

mar. 4/16:00 amONT - GMP

2 stops23h 50mMultiple Airlines

lun. 4/77:55 amGMP - ONT

2 stops26h 34mMultiple Airlines

Deal found 3/24

$2,081

One-way flights from Ontario to Seoul
Search for one-way flight options from Ontario to Seoul. Find affordable one-way fares based on user searches. Data last updated marzo 25, 2025.

sáb. 5/108:24 amONT - ICN

1 stop20h 06mMultiple Airlines

Deal found 3/24

$423

dom. 9/712:45 amONT - ICN

1 stop26h 50mChina Airlines

Deal found 3/24

$574

mar. 9/167:00 amONT - ICN

2 stops43h 45mWestJet

Deal found 3/24

$579

jue. 4/1012:10 amONT - GMP

1 stop25h 15mMultiple Airlines

Deal found 3/24

$721

vie. 4/46:00 amONT - ICN

2 stops45h 20mPhilippine Airlines

Deal found 3/24

$725

lun. 4/216:00 amONT - GMP

2 stops23h 50mJapan Airlines

Deal found 3/23

$727

mar. 4/225:45 amONT - ICN

1 stop18h 55mKorean Air

Deal found 3/24

$759

mar. 9/1611:59 pmONT - ICN

1 stop23h 31mAmerican Airlines

Deal found 3/24

$777

jue. 4/247:05 amONT - ICN

1 stop15h 55mUnited Airlines

Deal found 3/25

$781

mar. 5/610:59 pmONT - ICN

2 stops55h 06mEtihad Airways

Deal found 3/24

$797

vie. 5/309:50 amONT - ICN

1 stop17h 10mHawaiian Airlines

Deal found 3/25

$948

lun. 4/216:00 amONT - ICN

2 stops43h 05mQatar Airways

Deal found 3/24

$1,071

Cheapflights Fare Finder

Use the filters below to find and compare flights from Ontario to Seoul that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

OntarioIncheon

ONT - ICN

ONTICN

Ontario

sáb. 5/10

8:24 am-8:30 pm

1 stop20h 06m

Incheon Intl

dom. 5/25

6:20 pm-11:36 pm

1 stop21h 16m

$977

OntarioIncheon

ONT - ICN

ONTICN

Ontario

mar. 4/8

12:10 am-7:35 pm

1 stop27h 25m

Incheon Intl

mié. 6/4

8:35 pm-6:00 pm

1 stop37h 25m

$979

OntarioIncheon

ONT - ICN

ONTICN

Ontario

lun. 9/15

7:00 am-4:40 pm

1 stop17h 40m

Incheon Intl

lun. 9/22

4:40 pm-5:22 pm

1 stop16h 42m

$1,360

OntarioIncheon

ONT - ICN

ONTICN

Ontario

jue. 4/10

5:40 am-4:30 pm

1 stop18h 50m

Incheon Intl

mié. 4/16

7:20 pm-10:43 pm

1 stop19h 23m

$1,375

OntarioIncheon

ONT - ICN

ONTICN

Ontario

mié. 4/23

11:59 pm-3:30 pm

1 stop23h 31m

Incheon Intl

mié. 4/30

5:25 pm-10:10 pm

1 stop20h 45m

$1,418

OntarioSeoul

ONT - GMP

ONTGMP

Ontario

mié. 4/9

12:10 am-6:30 pm

2 stops26h 20m

Seoul Gimpo Intl

lun. 4/21

8:20 am-6:00 pm

2 stops25h 40m

$1,419

OntarioIncheon

ONT - ICN

ONTICN

Ontario

mié. 4/23

7:05 am-3:00 pm

1 stop15h 55m

Incheon Intl

jue. 5/15

4:50 pm-2:25 pm

1 stop13h 35m

$1,475

OntarioIncheon

ONT - ICN

ONTICN

Ontario

mar. 5/27

11:46 am-6:45 pm

2 stops38h 59m

Incheon Intl

jue. 6/12

8:45 pm-5:05 pm

2 stops36h 20m

$1,491

OntarioIncheon

ONT - ICN

ONTICN

Ontario

lun. 9/1

11:39 am-5:05 pm

2 stops37h 26m

Incheon Intl

dom. 9/7

1:20 am-11:59 pm

2 stops38h 39m

$1,534

OntarioIncheon

ONT - ICN

ONTICN

Ontario

sáb. 5/10

8:24 am-8:30 pm

1 stop20h 06m

$423

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/24

Showing 1-10 of 22 results

Compare providers for flights from Ontario to Seoul

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Seoul in March.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
AranGrant	Price Accuracy3 stars	Trust Score*1 star
eDreams	Price Accuracy3 stars	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Ontario-Seoul flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Seoul flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Seoul flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Ontario-Seoul flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Seoul flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Ontario to Seoul

Have a flexible travel schedule? Discover the best time to fly to Seoul from Ontario with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Ontario to Seoul

What is the cheapest month to book a flight from Ontario to Seoul?

Currently, February is the cheapest month in which you can book a flight from Ontario to Seoul (average of $1,002). Flying from Ontario to Seoul in June is currently the most expensive (average of $1,664). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ONT to SEL?

Unlike in the morning, when flights are generally more expensive, you can save up to 24% on flights from Ontario to Seoul by exploring options for tickets at noon.

Rainfall in Seoul by month

In terms of precipitation, rainfall in Seoul ranges from 1.1 - 10.0 inches per month. July is typically the wettest month, when rainfall can reach 10.0 in. December is typically the driest time to visit Seoul when rainfall is around 1.1 in.

Temperature in Seoul by month

If weather is an important factor for your trip to Seoul, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 77.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

Reviews of airlines servicing Seoul

Peruse reviews from past customers who have flown with Korean Air, Japan Airlines and China Airlines from Ontario to Seoul to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Korean Air

8.4

Very good

1,047 reviews

Reviews

1 / 20

10.0

Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

Korean Air

8.4

Very good

1,047 reviews

Korean Air

8.4

Very good

1,047 reviews

Reviews

1 / 20

10.0

Excellent

Chris,Mar 2025

SEA - ICN

Japan Airlines

8.3

Very good

1,440 reviews

Korean Air

8.4

Very good

1,047 reviews

Reviews

1 / 20

10.0

Excellent

Chris,Mar 2025

SEA - ICN

China Airlines

8.2

Very good

722 reviews

Korean Air

8.4

Very good

1,047 reviews

Reviews

1 / 20

10.0

Excellent

Chris,Mar 2025

SEA - ICN

Delta

8.0

Very good

7,890 reviews

Korean Air

8.4

Very good

1,047 reviews

Reviews

1 / 20

10.0

Excellent

Chris,Mar 2025

SEA - ICN

Hawaiian Airlines

7.9

Good

2,330 reviews

Korean Air

8.4

Very good

1,047 reviews

Reviews

1 / 20

10.0

Excellent

Chris,Mar 2025

SEA - ICN

Related info for your journey

What airport do you fly from for flights from Ontario to Seoul?
Ontario (ONT), located 3.1 mi from the city center, is the airport you fly out of when you book flights from Ontario to Seoul. 2 airlines have flights from Ontario to Seoul on a regular basis. Booking flights from Ontario to Seoul should not be difficult; the airport handles an average of 0 outbound flights to Seoul per day.
What are the cheapest airlines flying from Ontario to Seoul round-trip?
According to our current data, China Airlines ($979), Korean Air ($1,360), and Delta ($1,375) offers the cheapest pricing from Ontario to Seoul. China Airlines is 30% cheaper than the average price of flights available within the next 90 days to this destination.
What are the cheapest airlines to fly from Ontario to Seoul one-way?
The cheapest airlines for a one-way flight from Ontario to Seoul are China Airlines ($574), WestJet ($579), and Philippine Airlines ($725).
Can I find deals for flights from Ontario to Seoul that include hotel bookings?
Yes. In addition to deals on Ontario to Seoul flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Ontario to Seoul?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Seoul.
Can I find deals for business class flights from Ontario to Seoul?
Yes. Cheapflights offers flight deals from Ontario to Seoul by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Ontario to Seoul?
Currently, February is the cheapest month in which you can book a flight from Ontario to Seoul (average of $1,002). Flying from Ontario to Seoul in June is currently the most expensive (average of $1,664). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Ontario to Seoul

Los Angeles to Incheon Intl flights

San Francisco to Incheon Intl flights

Los Angeles to Gimpo Intl flights

San Francisco to Gimpo Intl flights

Ontario to Incheon Intl flights

San Jose to Incheon Intl flights

Las Vegas to Incheon Intl flights

Oakland to Incheon Intl flights

Santa Ana to Incheon Intl flights

San Diego to Incheon Intl flights

San Diego to Gimpo Intl flights

Burbank to Incheon Intl flights

Los Angeles to Busan flights

Long Beach to Incheon Intl flights

Las Vegas to Gimpo Intl flights

Sacramento to Incheon Intl flights

San Jose to Gimpo Intl flights

Ontario to Gimpo Intl flights

Palm Springs to Incheon Intl flights

Ontario to Busan flights

Los Angeles to Jeju City flights

Reno to Incheon Intl flights

Santa Ana to Busan flights

San Francisco to Busan flights

Los Angeles to Daegu flights

San Francisco to Jeju City flights

San Jose to Busan flights

Santa Barbara to Incheon Intl flights

Monterey to Incheon Intl flights

San Jose to Jeju City flights

Las Vegas to Busan flights

Ontario to Jeju City flights

San Diego to Jeju City flights

Medford to Incheon Intl flights

Oakland to Busan flights

Fresno to Busan flights

Other flights to Seoul

Newark to Incheon Intl flights

Honolulu to Incheon Intl flights

San Francisco to Incheon Intl flights

Los Angeles to Incheon Intl flights

Seattle to Incheon Intl flights

Las Vegas to Incheon Intl flights

Seoul Gimpo Intl Airport to Jeju City flights

Seoul Gimpo Intl Airport to Busan flights

Seoul Gimpo Intl Airport to Jeju City flights

Seoul Gimpo Intl Airport to Busan flights

Incheon Intl Airport to Fukuoka flights

Incheon Intl Airport to Hong Kong flights

Incheon Intl Airport to Dalian flights

Incheon Intl Airport to Sapporo Chitose Airport flights

Incheon Intl Airport to Nagoya Chubu Centrair Intl Airport flights

Incheon Intl Airport to Macau flights

Seoul Gimpo Intl Airport to Osaka Kansai Intl Airport flights

Incheon Intl Airport to Osaka Kansai Intl Airport flights

Incheon Intl Airport to Qingdao flights

Incheon Intl Airport to Kota Kinabalu flights

Incheon Intl Airport to Yantai flights

Incheon Intl Airport to Tianjin flights

Incheon Intl Airport to Okinawa flights

Incheon Intl Airport to Angeles City flights

Top 2 airlines flying from Ontario to Seoul

Airline	Cheapest	Average	Flexibility	On-time
China Airlines	Cheapest$961	Average$1,061	FlexibilityNo cancel fee	On-time70%
Korean Air	Cheapest$1,111	Average$1,199	FlexibilityNo cancel fee	On-time81%

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.

$423+ Cheap flights from Ontario (ONT) to Seoul (SEL)

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 5/10. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Ontario to Seoul with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Ontario to Seoul

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Ontario to Seoul

Cheapest flights from Ontario to SeoulExplore the most affordable flight options available from Ontario to Seoul. Find the lowest fares from popular airlines and budget airlines, with prices last updated on marzo 25, 2025.

Explore the most affordable flight options available from Ontario to Seoul. Find the lowest fares from popular airlines and budget airlines, with prices last updated on marzo 25, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Ontario to Seoul that are best for you.

Compare providers for flights from Ontario to Seoul

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Seoul in March.

Best time to book a flight from Ontario to Seoul

Have a flexible travel schedule? Discover the best time to fly to Seoul from Ontario with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Ontario to Seoul

What is the cheapest month to book a flight from Ontario to Seoul?

What is the cheapest time of day to fly from ONT to SEL?

Find hourly flight availability from Ontario to Seoul. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated marzo 25, 2025.

Rainfall in Seoul by month

Plan your trip to Seoul by taking into account the average rainfall totals by month.

Temperature in Seoul by month

Plan your trip to Seoul by taking into account the average temperature totals by month.

Reviews of airlines servicing Seoul

Get insights into the airlines that provide service to Seoul. 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 Seoul. Reviews last updated marzo 25, 2025.

Peruse reviews from past customers who have flown with Korean Air, Japan Airlines and China Airlines from Ontario to Seoul to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Seoul. 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 from for flights from Ontario to Seoul?

What are the cheapest airlines flying from Ontario to Seoul round-trip?

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

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

How can I find direct flights from Ontario to Seoul?

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

What is the cheapest month to book a flight from Ontario to Seoul?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Ontario to Seoul
Explore the most affordable flight options available from Ontario to Seoul. Find the lowest fares from popular airlines and budget airlines, with prices last updated on marzo 25, 2025.