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Cheap flights from Seoul to Los Angeles from $404

1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Seoul to Los Angeles

Cheap round-trip flights

Enter your travel dates to find the best prices.
Lufthansa Logo
6:00 pm - 3:35 pmICN  Incheon Intl-ONT Ontario
14h 35m1 stop San Francisco
Lufthansa Logo
6:00 am - 4:15 pmONT  Ontario-ICN Incheon Intl
17h 15m1 stop San Francisco
$932Lufthansa
Mon, Dec 14 - Wed, Dec 30
United Airlines Logo
12:45 pm - 9:38 amICN  Incheon Intl-ONT Ontario
13h 53m1 stop San Francisco
United Airlines Logo
6:00 am - 4:15 pmONT  Ontario-ICN Incheon Intl
17h 15m1 stop San Francisco
$936United Airlines
Thu, Dec 3 - Mon, Dec 7
United Airlines Logo
6:00 pm - 9:00 pmICN  Incheon Intl-ONT Ontario
20h 00m2 stops San Francisco Denver Intl
United Airlines Logo
6:00 am - 4:15 pmONT  Ontario-ICN Incheon Intl
17h 15m1 stop San Francisco
$946United Airlines
Tue, Feb 2 - Tue, Feb 16
United Airlines Logo
6:00 pm - 3:33 pmICN  Incheon Intl-ONT Ontario
14h 33m1 stop San Francisco
United Airlines Logo
1:40 pm - 4:15 pmONT  Ontario-ICN Incheon Intl
33h 35m2 stops Denver Intl San Francisco
$947United Airlines
Tue, Nov 24 - Wed, Dec 9
United Airlines Logo
12:45 pm - 11:58 amICN  Incheon Intl-ONT Ontario
16h 13m1 stop San Francisco
United Airlines Logo
6:00 am - 4:15 pmONT  Ontario-ICN Incheon Intl
17h 15m1 stop San Francisco
$950United Airlines
Tue, Dec 22 - Thu, Dec 31
United Airlines Logo
12:45 pm - 10:53 pmICN  Incheon Intl-ONT Ontario
27h 08m1 stop San Francisco
United Airlines Logo
6:00 am - 5:40 amONT  Ontario-ICN Incheon Intl
30h 40m1 stop San Francisco
$951United Airlines
Thu, Dec 24 - Mon, Dec 28
Lufthansa Logo
6:00 pm - 3:35 pmICN  Incheon Intl-ONT Ontario
14h 35m1 stop San Francisco
Lufthansa Logo
6:00 am - 4:15 pmONT  Ontario-ICN Incheon Intl
17h 15m1 stop San Francisco
$952Lufthansa
Mon, Dec 14 - Tue, Dec 29
United Airlines Logo
12:45 pm - 10:43 amICN  Incheon Intl-ONT Ontario
14h 58m1 stop San Francisco
United Airlines Logo
6:40 pm - 5:40 amONT  Ontario-ICN Incheon Intl
18h 00m1 stop San Francisco
$954United Airlines
Thu, Nov 26 - Thu, Dec 3
United Airlines Logo
6:00 pm - 3:24 pmICN  Incheon Intl-ONT Ontario
14h 24m1 stop San Francisco
United Airlines Logo
6:40 pm - 5:40 amONT  Ontario-ICN Incheon Intl
18h 00m1 stop San Francisco
$956United Airlines
Thu, Nov 26 - Thu, Dec 3
United Airlines Logo
12:45 pm - 9:38 amICN  Incheon Intl-ONT Ontario
13h 53m1 stop San Francisco
United Airlines Logo
7:25 am - 4:15 pmONT  Ontario-ICN Incheon Intl
15h 50m1 stop San Francisco
$963United Airlines
Wed, Dec 2 - Sun, Feb 7

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Alaska Airlines flights from Seoul to Ontario

Our best Alaska Airlines deals on Seoul to Ontario flight tickets
Alaska Airlines
Dec 14
ICN8:00 pmIncheon Intl
32h 13m
1 stop
ONT11:13 amOntario
Dec 30
ONT6:00 amOntario
18h 35m
1 stop
ICN5:35 pmIncheon Intl
$1,047
Alaska Airlines
Feb 8
ICN8:00 pmIncheon Intl
19h 43m
1 stop
ONT10:43 pmOntario
Feb 12
ONT6:00 amOntario
18h 35m
1 stop
ICN5:35 pmIncheon Intl
$1,049
Alaska Airlines
Dec 14
ICN8:00 pmIncheon Intl
32h 13m
1 stop
ONT11:13 amOntario
Dec 30
ONT6:00 amOntario
18h 35m
1 stop
ICN5:35 pmIncheon Intl
$1,051

Lufthansa flights from Seoul to Ontario

Our best Lufthansa deals on Seoul to Ontario flight tickets
Lufthansa
Dec 14
ICN6:00 pmIncheon Intl
14h 35m
1 stop
ONT3:35 pmOntario
Dec 30
ONT6:00 amOntario
17h 15m
1 stop
ICN4:15 pmIncheon Intl
$932
Lufthansa
Nov 20
ICN6:00 pmIncheon Intl
14h 33m
1 stop
ONT3:33 pmOntario
Dec 3
ONT1:40 pmOntario
23h 00m
2 stops
ICN5:40 amIncheon Intl
$939
Lufthansa
Nov 16
ICN12:45 pmIncheon Intl
22h 11m
1 stop
ONT5:56 pmOntario
Nov 29
ONT9:25 amOntario
27h 15m
1 stop
ICN5:40 amIncheon Intl
$949

momondo Fare Finder

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

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Route

Depart

Return

Price

Cheapest round-trip

IncheonOntario

ICN Incheon Intl - ONT Ontario

ICNONT

Incheon Intl

Mon 12/14

6:00 pm-3:35 pm

1 stop14h 35m

Ontario

Wed 12/30

6:00 am-4:15 pm

1 stop17h 15m

$932

IncheonOntario

ICN Incheon Intl - ONT Ontario

ICNONT

Incheon Intl

Thu 12/3

12:45 pm-9:38 am

1 stop13h 53m

Ontario

Mon 12/7

6:00 am-4:15 pm

1 stop17h 15m

$936

IncheonOntario

ICN Incheon Intl - ONT Ontario

ICNONT

Incheon Intl

Tue 2/2

6:00 pm-9:00 pm

2 stops20h 00m

Ontario

Tue 2/16

6:00 am-4:15 pm

1 stop17h 15m

$946

IncheonOntario

ICN Incheon Intl - ONT Ontario

ICNONT

Incheon Intl

Tue 11/24

6:00 pm-3:33 pm

1 stop14h 33m

Ontario

Wed 12/9

1:40 pm-4:15 pm

2 stops33h 35m

$947

IncheonOntario

ICN Incheon Intl - ONT Ontario

ICNONT

Incheon Intl

Tue 12/22

12:45 pm-11:58 am

1 stop16h 13m

Ontario

Thu 12/31

6:00 am-4:15 pm

1 stop17h 15m

$950

IncheonOntario

ICN Incheon Intl - ONT Ontario

ICNONT

Incheon Intl

Thu 12/24

12:45 pm-10:53 pm

1 stop27h 08m

Ontario

Mon 12/28

6:00 am-5:40 am

1 stop30h 40m

$951

IncheonOntario

ICN Incheon Intl - ONT Ontario

ICNONT

Incheon Intl

Mon 12/14

6:00 pm-3:35 pm

1 stop14h 35m

Ontario

Tue 12/29

6:00 am-4:15 pm

1 stop17h 15m

$952

IncheonOntario

ICN Incheon Intl - ONT Ontario

ICNONT

Incheon Intl

Thu 11/26

12:45 pm-10:43 am

1 stop14h 58m

Ontario

Thu 12/3

6:40 pm-5:40 am

1 stop18h 00m

$954

IncheonOntario

ICN Incheon Intl - ONT Ontario

ICNONT

Incheon Intl

Thu 11/26

6:00 pm-3:24 pm

1 stop14h 24m

Ontario

Thu 12/3

6:40 pm-5:40 am

1 stop18h 00m

$956
Quickest round-trip

IncheonOntario

ICN Incheon Intl - ONT Ontario

ICNONT

Incheon Intl

Wed 12/2

12:45 pm-9:38 am

1 stop13h 53m

Ontario

Sun 2/7

7:25 am-4:15 pm

1 stop15h 50m

$963

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Los Angeles from

How to get the cheapest flight ticket from Seoul to Ontario

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Seoul to Ontario?

United Airlines and Alaska Airlines are the most popular carriers operating from Seoul to Ontario

What airlines fly to Ontario?

AIR PREMIA, Asiana Airlines and United Airlines are the top three most popular airlines that fly to Ontario from Seoul according to our data. AIR PREMIA is the first choice among our users, with 57% of people opting to fly with this airline when traveling to Ontario. Keep in mind that there are 6 different airlines that fly to Ontario on a routine basis, so you have a few additional options to choose from.

When to book flights from Seoul to Ontario

Are you open to changing your travel dates? Check out the ideal times to fly from Seoul to Ontario according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Seoul to Ontario (SEL to ONT) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seoul to Ontario

Best Price Found

$404

Fastest flight time

13h 53m

Direct flights

None
The best one-way flight to Ontario from Seoul in the past 72 hours is $404. The best round-trip flight deal from Seoul to Ontario found on momondo in the last 72 hours is $932.
The fastest flight from Seoul to Ontario takes 13h 53m
There are no direct flights from Seoul to Ontario. There are no popular flight routes from Seoul to Ontario.
Search flight deals

Frequently asked questions about flying from Seoul to Ontario

  • How far is Seoul to Ontario by plane?

    Seoul and Ontario are 5976.3 mi apart from one another. By plane, this route typically takes 13h 53m.

  • When did momondo last update prices for flights from Seoul to Ontario Airport?

    Prices for flights from Seoul to Ontario Airport refresh daily.

  • How old do you have to be to fly from Seoul to Ontario Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seoul to Ontario Airport.

  • What documentation or ID do you need to fly to Ontario Airport?

    The required travel and health documents for your Ontario Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Ontario Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Seoul to Ontario?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Seoul to Ontario. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Seoul to Ontario with flexible booking policies on momondo?

Flights from Seoul to Ontario with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Seoul to Ontario?

momondo provides multiple filters to help you find the best flight to Ontario from Seoul. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Seoul to Ontario right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Seoul to Ontario now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Ontario and let you know when they change.

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