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Cheap flights from Incheon Intl Airport to Los Angeles from $412

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Incheon Intl Airport to Los Angeles departing on 9/28. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Incheon Intl Airport to Los Angeles

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
11:30 am - 2:01 pm
ICN
-
ONT
18h 31m
1 stop
United Airlines Logo
8:03 am - 3:00 pm
ONT
-
ICN
14h 57m
1 stop
$793United Airlines
Tue, Sep 22 - Tue, Sep 29
United Airlines Logo
4:50 pm - 8:53 pm
ICN
-
ONT
20h 03m
2 stops
United Airlines Logo
8:03 am - 3:00 pm
ONT
-
ICN
14h 57m
1 stop
$793United Airlines
Tue, Sep 22 - Tue, Sep 29
United Airlines Logo
11:30 am - 12:50 pm
ICN
-
ONT
41h 20m
2 stops
United Airlines Logo
5:00 am - 4:20 am
ONT
-
ICN
31h 20m
2 stops
$796United Airlines
Fri, Aug 14 - Sun, Aug 16
United Airlines Logo
12:45 pm - 12:29 pm
ICN
-
ONT
16h 44m
1 stop
United Airlines Logo
6:00 am - 4:15 pm
ONT
-
ICN
17h 15m
1 stop
$796United Airlines
Thu, Nov 5 - Wed, Nov 11
United Airlines Logo
4:50 pm - 6:16 pm
ICN
-
ONT
17h 26m
1 stop
United Airlines Logo
6:08 am - 3:00 pm
ONT
-
ICN
16h 52m
1 stop
$796United Airlines
Wed, Aug 26 - Sun, Sep 13
United Airlines Logo
4:50 pm - 6:11 pm
ICN
-
ONT
17h 21m
1 stop
United Airlines Logo
6:08 am - 3:00 pm
ONT
-
ICN
16h 52m
1 stop
$796United Airlines
Thu, Aug 27 - Thu, Sep 17
United Airlines Logo
11:30 am - 12:12 pm
ICN
-
ONT
16h 42m
1 stop
United Airlines Logo
1:56 pm - 4:20 am
ONT
-
ICN
22h 24m
1 stop
$796United Airlines
Thu, Aug 27 - Wed, Sep 16
United Airlines Logo
4:50 pm - 6:16 pm
ICN
-
ONT
17h 26m
1 stop
United Airlines Logo
6:08 am - 3:00 pm
ONT
-
ICN
16h 52m
1 stop
$796United Airlines
Wed, Aug 26 - Tue, Sep 15
United Airlines Logo
4:50 pm - 6:11 pm
ICN
-
ONT
17h 21m
1 stop
United Airlines Logo
6:08 am - 3:00 pm
ONT
-
ICN
16h 52m
1 stop
$796United Airlines
Tue, Aug 25 - Thu, Sep 10
United Airlines Logo
11:30 am - 2:01 pm
ICN
-
ONT
18h 31m
1 stop
United Airlines Logo
1:52 pm - 3:00 pm
ONT
-
ICN
33h 08m
1 stop
$796United Airlines
Tue, Sep 22 - Sat, Sep 26

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China Airlines flights from Incheon Intl Airport to Ontario

Our best China Airlines deals on Incheon Intl Airport to Ontario flight tickets
China Airlines
Oct 31
ICN12:30 pmIncheon Intl
21h 35m
1 stop
ONT6:05 pmOntario
Oct 31
ONT11:50 pmOntario
27h 25m
1 stop
ICN7:15 pmIncheon Intl
$946
China Airlines
Sep 22
ICN12:35 pmIncheon Intl
21h 25m
1 stop
ONT6:00 pmOntario
Oct 8
ONT12:10 amOntario
27h 25m
1 stop
ICN7:35 pmIncheon Intl
$950
China Airlines
Dec 5
ICN8:15 pmIncheon Intl
37h 50m
1 stop
ONT5:05 pmOntario
May 28
ONT12:10 amOntario
19h 20m
1 stop
ICN11:30 amIncheon Intl
$952

United Airlines flights from Incheon Intl Airport to Ontario

Our best United Airlines deals on Incheon Intl Airport to Ontario flight tickets
United Airlines
Aug 14
ICN11:30 amIncheon Intl
41h 20m
2 stops
ONT12:50 pmOntario
Aug 23
ONT5:00 amOntario
31h 20m
2 stops
ICN4:20 amIncheon Intl
$796
United Airlines
Oct 30
ICN11:45 amIncheon Intl
16h 44m
1 stop
ONT12:29 pmOntario
Nov 17
ONT6:00 amOntario
17h 15m
1 stop
ICN4:15 pmIncheon Intl
$798
United Airlines
Nov 23
ICN12:45 pmIncheon Intl
16h 44m
1 stop
ONT12:29 pmOntario
Nov 25
ONT6:37 pmOntario
28h 38m
1 stop
ICN4:15 pmIncheon Intl
$801

momondo Fare Finder

 
Customize your flight search to find flights from Incheon Intl Airport 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, momondo users made 832,500 searches. Data last updated July 28, 2026.
Use the filters below to find and compare flights from Incheon Intl Airport to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

IncheonOntario

ICN - ONT

ICNONT

Incheon Intl

Tue 9/22

11:30 am-2:01 pm

1 stop18h 31m

Ontario

Tue 9/29

8:03 am-3:00 pm

1 stop14h 57m

$793

IncheonOntario

ICN - ONT

ICNONT

Incheon Intl

Tue 9/22

4:50 pm-8:53 pm

2 stops20h 03m

Ontario

Tue 9/29

8:03 am-3:00 pm

1 stop14h 57m

$793

IncheonOntario

ICN - ONT

ICNONT

Incheon Intl

Fri 8/14

11:30 am-12:50 pm

2 stops41h 20m

Ontario

Sun 8/16

5:00 am-4:20 am

2 stops31h 20m

$796

IncheonOntario

ICN - ONT

ICNONT

Incheon Intl

Thu 11/5

12:45 pm-12:29 pm

1 stop16h 44m

Ontario

Wed 11/11

6:00 am-4:15 pm

1 stop17h 15m

$796

IncheonOntario

ICN - ONT

ICNONT

Incheon Intl

Wed 8/26

4:50 pm-6:16 pm

1 stop17h 26m

Ontario

Sun 9/13

6:08 am-3:00 pm

1 stop16h 52m

$796

IncheonOntario

ICN - ONT

ICNONT

Incheon Intl

Thu 8/27

4:50 pm-6:11 pm

1 stop17h 21m

Ontario

Thu 9/17

6:08 am-3:00 pm

1 stop16h 52m

$796

IncheonOntario

ICN - ONT

ICNONT

Incheon Intl

Thu 8/27

11:30 am-12:12 pm

1 stop16h 42m

Ontario

Wed 9/16

1:56 pm-4:20 am

1 stop22h 24m

$796

IncheonOntario

ICN - ONT

ICNONT

Incheon Intl

Wed 8/26

4:50 pm-6:16 pm

1 stop17h 26m

Ontario

Tue 9/15

6:08 am-3:00 pm

1 stop16h 52m

$796

IncheonOntario

ICN - ONT

ICNONT

Incheon Intl

Tue 8/25

4:50 pm-6:11 pm

1 stop17h 21m

Ontario

Thu 9/10

6:08 am-3:00 pm

1 stop16h 52m

$796

IncheonOntario

ICN - ONT

ICNONT

Incheon Intl

Tue 9/22

11:30 am-2:01 pm

1 stop18h 31m

Ontario

Sat 9/26

1:52 pm-3:00 pm

1 stop33h 08m

$796

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Incheon Intl Airport 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 Incheon Intl to Ontario?

China Airlines and United Airlines are the most popular carriers operating from Incheon Intl 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 Incheon Intl Airport according to our data. AIR PREMIA is the first choice among our users, with 58% of people opting to fly with this airline when traveling to Ontario. Keep in mind that there are 7 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 Incheon Intl Airport to Ontario

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

Cheap Incheon Intl Airport to Ontario (ICN to ONT) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Incheon Intl Airport to Ontario

Fastest flight time

14h 12m

Direct flights

None
The fastest flight from Incheon Intl Airport to Ontario takes 14h 12m
There are no direct flights from Incheon Intl Airport to Ontario. There are no popular flight routes from Incheon Intl Airport to Ontario.
Search flight deals

Frequently asked questions about flying from Incheon Intl Airport to Ontario

  • How far is Incheon Intl to Ontario by plane?

    Incheon Intl and Ontario are 6003.0 mi apart from one another. 14h 12m is a normal flight duration for this route.

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

    Prices for flights from Incheon Intl Airport to Ontario Airport refresh daily.

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Incheon Intl Airport to Ontario Airport.

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

    The travel and health documents you'll need for your trip to Ontario Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Ontario Airport. It is always advisable to seek advice from your airline or a trusted 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?

Yes. All flights to Ontario from Seoul on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once you have performed a search for Seoul to Ontario flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Yes momondo offers price alerts on flights to Ontario from Seoul. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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