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ICN - ONT

$334 Find cheap flights from Incheon to Ontario

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Incheon Intl to Ontario departing on 6/4. 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.
1 adult
0 bags
Sat 6/29
Sat 7/6

Search hundreds of travel sites at once for deals on flights to Ontario

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Incheon to Ontario, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Incheon to Ontario, as well as popular online travel agencies
In the last 7 days travelers have searched 42,686,544 times on KAYAK, and here is why:

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Cheap flight deals from Incheon Intl to Ontario (ICN-ONT)

 
These are the cheapest deals for flights from Incheon Intl to Ontario currently on KAYAK along with options from the most popular airlines KAYAK users selected for this route. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from Incheon Intl to Ontario

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Incheon Intl to Ontario.

Recent one-way flight deals from Incheon Intl to Ontario

Only flying one-way? Below are some of the best one-way flight deals from Incheon Intl to Ontario found on KAYAK recently.

Recent last minute flight deals from Incheon Intl to Ontario

Leaving soon but still want a bargain? Check out these latest deals for last minute flights from Incheon Intl to Ontario.

Recent direct flight deals from Incheon Intl to Ontario

The latest deals for direct flights from Incheon Intl to Ontario so you can sit back and relax without the need for a layover.

Cheap bus & train deals from Incheon Intl to Ontario

Find recent round-trip train or bus tickets from Incheon Intl to Ontario.

All round-trip flight deals to Ontario

The cheapest plane tickets to Ontario found on KAYAK recently.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
11:30 am - 10:03 amICN-ONT
14h 33m1 stop
6:20 pm - 3:00 pmONT-ICN
28h 40m2 stops
$583United Airlines
Find Deal
Thu, Sep 26 - Sun, Sep 29
1:00 pm - 1:03 pmICN-ONT
17h 03m1 stop
1:00 pm - 5:40 amONT-ICN
23h 40m2 stops
$587United Airlines
Find Deal
Mon, Nov 11 - Thu, Nov 21
6:35 pm - 1:44 pmICN-ONT
36h 09m1 stop
1:28 pm - 4:25 pmONT-ICN
33h 57m2 stops
$719American Airlines
Find Deal
Fri, Nov 8 - Tue, Nov 12
6:35 pm - 9:43 pmICN-ONT
20h 08m2 stops
1:28 pm - 4:25 pmONT-ICN
33h 57m2 stops
$760American Airlines
Find Deal
Fri, Nov 8 - Tue, Nov 12
12:35 pm - 6:40 pmICN-ONT
22h 05m1 stop
12:45 am - 11:10 amONT-ICN
18h 25m1 stop
$953China Airlines
Find Deal
Tue, Sep 3 - Tue, Sep 10
12:35 pm - 6:05 pmICN-ONT
21h 30m1 stop
12:10 am - 7:45 pmONT-ICN
27h 35m1 stop
$955China Airlines
Find Deal
Thu, Sep 26 - Sat, Sep 28
9:25 pm - 9:45 pmICN-ONT
16h 20m1 stop
9:40 am - 7:00 pmONT-ICN
17h 20m1 stop
$1,238Hawaiian Airlines
Find Deal
Mon, Jun 24 - Fri, Jun 28
9:25 pm - 9:45 pmICN-ONT
16h 20m1 stop
9:40 am - 7:00 pmONT-ICN
17h 20m1 stop
$1,257Hawaiian Airlines
Find Deal
Mon, Jun 10 - Fri, Jun 14
8:35 am - 7:08 amICN-ONT
38h 33m2 stops
8:02 am - 7:50 pmONT-ICN
19h 48m1 stop
$1,283
Find Deal
Mon, Jul 1 - Mon, Jul 15
12:45 am - 6:05 pmICN-ONT
33h 20m2 stops
12:10 am - 11:15 pmONT-ICN
31h 05m2 stops
$1,304
Find Deal
Tue, Sep 24 - Tue, Oct 8
11:30 am - 8:48 pmICN-ONT
25h 18m2 stops
$334United Airlines
Find Deal
Tue, Jun 4
4:50 pm - 10:07 amICN-ONT
33h 17m1 stop
$335United Airlines
Find Deal
Mon, Sep 16
5:25 pm - 10:59 pmICN-ONT
45h 34m2 stops
$606American Airlines
Find Deal
Wed, Jun 19
12:35 pm - 6:40 pmICN-ONT
22h 05m1 stop
$617China Airlines
Find Deal
Tue, Sep 3
12:35 pm - 6:05 pmICN-ONT
21h 30m1 stop
$618China Airlines
Find Deal
Mon, Sep 23
5:25 pm - 11:26 pmICN-ONT
22h 01m1 stop
$624American Airlines
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Fri, Oct 25
8:50 am - 6:05 pmICN-ONT
25h 15m2 stops
Fri, Sep 20
8:50 am - 6:05 pmICN-ONT
25h 15m2 stops
Sat, Oct 19
9:25 pm - 9:45 pmICN-ONT
16h 20m1 stop
$765Hawaiian Airlines
Find Deal
Fri, Jun 21
9:25 pm - 9:45 pmICN-ONT
16h 20m1 stop
$773Hawaiian Airlines
Find Deal
Sun, Jun 16
9:25 pm - 9:45 pmICN-ONT
16h 20m1 stop
9:40 am - 7:00 pmONT-ICN
17h 20m1 stop
$1,213Hawaiian Airlines
Find Deal
Mon, Jun 3 - Fri, Jun 7
4:50 pm - 12:33 pmICN-ONT
35h 43m2 stops
6:20 am - 4:20 amONT-ICN
30h 00m1 stop
$1,277United Airlines
Find Deal
Sat, Jun 1 - Mon, Jun 3
12:35 pm - 6:05 pmICN-ONT
21h 30m1 stop
12:10 am - 11:10 amONT-ICN
19h 00m1 stop
$1,446China Airlines
Find Deal
Tue, Jun 4 - Sat, Jun 29
12:35 pm - 6:05 pmICN-ONT
21h 30m1 stop
12:10 am - 11:10 amONT-ICN
19h 00m1 stop
$1,544China Airlines
Find Deal
Mon, Jun 3 - Thu, Jun 6
7:20 pm - 11:58 pmICN-ONT
20h 38m1 stop
6:00 am - 4:30 pmONT-ICN
18h 30m1 stop
$1,878
Find Deal
Tue, Jun 4 - Wed, Jun 12
5:25 pm - 11:55 pmICN-ONT
22h 30m1 stop
6:30 am - 3:15 pmONT-ICN
40h 45m2 stops
$1,884American Airlines
Find Deal
Tue, Jun 4 - Wed, Jun 12
8:35 am - 6:05 pmICN-ONT
25h 30m2 stops
12:10 am - 11:10 pmONT-ICN
31h 00m2 stops
$1,885
Find Deal
Fri, May 31 - Thu, Jun 6
5:25 pm - 10:29 pmICN-ONT
21h 04m2 stops
10:45 pm - 3:15 pmONT-ICN
48h 30m2 stops
$2,058American Airlines
Find Deal
Tue, Jun 4 - Wed, Jun 12
1:20 am - 8:08 pmICN-ONT
34h 48m2 stops
6:00 am - 9:55 amONT-ICN
35h 55m2 stops
$2,179Qatar Airways
Find Deal
Mon, Jun 3 - Wed, Jun 12
1:20 am - 8:08 pmICN-ONT
34h 48m2 stops
6:00 am - 5:35 pmONT-ICN
43h 35m2 stops
$2,262Qatar Airways
Find Deal
Mon, Jun 3 - Sun, Jun 30

Flights from Incheon Intl to Ontario - Travel Insights & Trends

Get data-powered insights and trends into flights from Incheon Intl to Ontario to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Seoul Incheon Airport to Ontario?

The average price of all flights from Incheon Intl Airport to Ontario clicked on KAYAK for each day over the last 12 months.
If your flying dates are flexible, you should consider flying to Ontario on a Thursday, as we generally find the cheapest rates on that day for this route. On the other hand, Monday is the most expensive day to fly from Seoul Incheon Airport to Ontario. For your return ticket, we recommend flying on a Tuesday and avoiding Fridays for the best deals.

Which airlines provide the cheapest flights from Seoul Incheon Airport to Ontario?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the past 3 days, the cheapest one-way tickets to Ontario from Seoul Incheon Airport were found on United Airlines ($334) and American Airlines ($606), and the lowest round-trip tickets were found on United Airlines ($583) and American Airlines ($719).

Good to know

Low season

November

High season

December

Cheapest flight

$334
Best time to beat the crowds with an average 45% drop in price.
Most popular time to fly and prices are also 17% lower on average.
Flight from Seoul Incheon Airport to Ontario

When to book flights from Incheon Intl to Ontario

Are your dates flexible? Find out the best times to travel from Incheon Intl to Ontario based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Incheon to Ontario flights

  • What is the cheapest flight from Incheon Intl Airport to Ontario?

    In the last 3 days, the lowest price for a flight from Incheon Intl Airport to Ontario was $334 for a one-way ticket and $583 for a round-trip.

  • Do I need a passport to fly between Seoul Incheon Airport and Ontario?

    Yes, you’ll need a passport to travel to Ontario from Seoul Incheon Airport.

  • Which airports will I be using when flying from Seoul Incheon Airport to Ontario?

    On your way to Ontario, you’ll fly out from Incheon Intl. You’ll be landing at Ontario.

  • Which aircraft models fly most regularly from Seoul Incheon Airport to Ontario?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Seoul Incheon Airport to Ontario?

    Star Alliance, oneworld, and SkyTeam are the airline alliances operating flights between Seoul Incheon Airport and Ontario, with SkyTeam being the most commonly used for this route.

  • How does KAYAK find such low prices on flights from Seoul Incheon Airport to Ontario?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Seoul Incheon Airport to Ontario.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Seoul Incheon Airport to Ontario?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario from Seoul Incheon Airport is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Seoul Incheon Airport to Ontario?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ontario with an airline and back to Seoul Incheon Airport with another airline. Booking your flights between Seoul Incheon Airport and ONT can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seoul Incheon Airport to Ontario?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ontario from Seoul Incheon Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top airline flying from Incheon Intl to Ontario

 
See real verified KAYAK customer reviews for airlines flying from Incheon to Ontario. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Incheon Intl to Ontario? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 10777 reviews
7.7Boarding
7.1Entertainment
6.7Food
8.1Crew
7.2Comfort
Airline reviews

I was not expecting much as i was not in a premium cabin. I was pleasantly surprised that the seat in economy plus was spacious and food was ample. Party of 5 with 2 parents and 3 kids.

10.0 ExcellentAnonymous, May 2024SIN - SFO
Read more about United Airlines reviews

I was not expecting much as i was not in a premium cabin. I was pleasantly surprised that the seat in economy plus was spacious and food was ample. Party of 5 with 2 parents and 3 kids.

Outstanding in all respects. Early boarding left early arrived early. We were in business class, so was perfectly fine.

Dinner was okay but the breakfast was not eatable on the flight San Francisco to Zurich.

I really do not like the basic in basic economy.

Marked by flight delays on all segments of the trip. Food in first class cabin was mediocre and overhead cabin storage was not adequate. Overall, the premium charge for first class cabin was poor and over hyped. This will be our last flight with UA.

Check in etc was very good. As for on the plane, it was like flying in a freezer. It was so cold, i have flown for years and never been so cold on a plane. Staff on board said its always cold when flying which is a load of rubbish. They wouldnt put any heating on and now i have the flu because of this .

I’ve had a couple flights this week on United that were delayed by an hour or more

Should have video screens Plane audio was poor and without wired connection hard to understand crew. Should serve more than just cups of water and pretzels on six hour flight. Did not see crew rest of flight. Fix charging sockets to retain charging blocks.

My bag was lost with my medicine and I am very inconvenienced. I don’t know what happened, however I want you to do a better job on getting people’s bag back

Generally good but there wasn’t any staff available when my luggage didn’t appear at baggage claim in Fresno. It took about half an hour to locate a staff member to open up the locked room where it was being kept.

Book cheap flights from Incheon to Ontario

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Incheon to Ontario found on KAYAK in the last 72 hours.
6/4Tue
2 stopsUnited Airlines
25h 18mICN-ONT
$334
9/16Mon
1 stopUnited Airlines
33h 17mICN-ONT
$335
6/19Wed
2 stopsAmerican Airlines
45h 34mICN-ONT
$606
9/3Tue
1 stopChina Airlines
22h 05mICN-ONT
$617
9/23Mon
1 stopChina Airlines
21h 30mICN-ONT
$618
10/25Fri
1 stopAmerican Airlines
22h 01mICN-ONT
$624
9/20Fri
2 stops
25h 15mICN-ONT
$633
10/19Sat
2 stops
25h 15mICN-ONT
$637
6/21Fri
1 stopHawaiian Airlines
16h 20mICN-ONT
$765
6/16Sun
1 stopHawaiian Airlines
16h 20mICN-ONT
$773

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Last minute flights from Incheon Intl to Ontario

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Incheon to Ontario that are departing in the next 10 days.
6/3Mon
multi-stopHawaiian Airlines
16h 20mICN-ONT
6/7Fri
multi-stopHawaiian Airlines
17h 20mONT-ICN
$1,213
6/1Sat
multi-stopUnited Airlines
35h 43mICN-ONT
6/3Mon
multi-stopUnited Airlines
30h 00mONT-ICN
$1,277
6/4Tue
multi-stopChina Airlines
21h 30mICN-ONT
6/29Sat
multi-stopChina Airlines
19h 00mONT-ICN
$1,446
6/3Mon
multi-stopChina Airlines
21h 30mICN-ONT
6/6Thu
multi-stopChina Airlines
19h 00mONT-ICN
$1,544
6/4Tue
multi-stop
20h 38mICN-ONT
6/12Wed
multi-stop
18h 30mONT-ICN
$1,878
6/4Tue
multi-stopAmerican Airlines
22h 30mICN-ONT
6/12Wed
multi-stopAmerican Airlines
40h 45mONT-ICN
$1,884
5/31Fri
multi-stop
25h 30mICN-ONT
6/6Thu
multi-stop
31h 00mONT-ICN
$1,885
6/4Tue
multi-stopAmerican Airlines
21h 04mICN-ONT
6/12Wed
multi-stopAmerican Airlines
48h 30mONT-ICN
$2,058
6/3Mon
multi-stopQatar Airways
34h 48mICN-ONT
6/12Wed
multi-stopQatar Airways
35h 55mONT-ICN
$2,179
6/3Mon
multi-stopQatar Airways
34h 48mICN-ONT
6/30Sun
multi-stopQatar Airways
43h 35mONT-ICN
$2,262

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Seoul Incheon Airport - Ontario Flights

Departure:

Incheon (ICN)South Korea

Destination:

Ontario (ONT)United States

Return flight deals:

Ontario - Incheon

Cabin classes: