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ICN - ONT

$332 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 9/18. 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
Thu 6/27
Thu 7/4

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 42,816,550 times on KAYAK, and here is why:

Save 21% or moreCompare multiple travel sites with one search.

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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 - 1:21 pmICN-ONT
17h 51m1 stop
1:35 pm - 4:20 amONT-ICN
22h 45m2 stops
$584United Airlines
Find Deal
Fri, Sep 6 - Mon, Sep 16
4:50 pm - 9:02 pmICN-ONT
20h 12m2 stops
7:40 am - 3:00 pmONT-ICN
15h 20m1 stop
$586United Airlines
Find Deal
Wed, Sep 18 - Wed, Sep 25
11:30 am - 10:07 amICN-ONT
14h 37m1 stop
6:35 pm - 4:20 amONT-ICN
17h 45m1 stop
$592United Airlines
Find Deal
Wed, Sep 25 - Wed, Oct 9
5:25 pm - 10:12 pmICN-ONT
20h 47m1 stop
11:59 pm - 3:15 pmONT-ICN
23h 16m1 stop
$935American Airlines
Find Deal
Thu, Sep 12 - Sun, Sep 22
5:25 pm - 11:56 pmICN-ONT
22h 31m1 stop
11:59 pm - 3:15 pmONT-ICN
23h 16m1 stop
$959American Airlines
Find Deal
Fri, Sep 27 - Mon, Oct 7
8:50 pm - 6:05 pmICN-ONT
37h 15m1 stop
12:10 am - 11:10 amONT-ICN
19h 00m1 stop
$961China Airlines
Find Deal
Fri, Oct 4 - Fri, Oct 11
8:50 pm - 6:05 pmICN-ONT
37h 15m1 stop
12:10 am - 7:45 pmONT-ICN
27h 35m1 stop
$985China Airlines
Find Deal
Thu, Oct 3 - Sun, Oct 13
9:25 pm - 9:45 pmICN-ONT
16h 20m1 stop
9:40 am - 7:00 pmONT-ICN
17h 20m1 stop
$1,080Hawaiian Airlines
Find Deal
Fri, Jun 7 - Tue, Jun 11
9:25 pm - 9:45 pmICN-ONT
16h 20m1 stop
9:40 am - 7:00 pmONT-ICN
17h 20m1 stop
$1,268Hawaiian Airlines
Find Deal
Mon, Jun 10 - Fri, Jun 14
4:35 pm - 5:08 pmICN-ONT
16h 33m1 stop
7:45 am - 4:40 pmONT-ICN
16h 55m1 stop
$1,271Korean Air
Find Deal
Mon, Oct 14 - Wed, Oct 23
11:30 am - 5:22 pmICN-ONT
21h 52m2 stops
$332United Airlines
Find Deal
Wed, Sep 18
4:50 pm - 8:48 pmICN-ONT
19h 58m2 stops
$334United Airlines
Find Deal
Mon, Jun 3
5:25 pm - 10:12 pmICN-ONT
20h 47m1 stop
$538American Airlines
Find Deal
Wed, Sep 18
5:25 pm - 3:51 pmICN-ONT
38h 26m2 stops
$556American Airlines
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Thu, Jun 6
12:55 pm - 9:55 pmICN-ONT
25h 00m2 stops
Tue, Aug 27
8:50 pm - 6:05 pmICN-ONT
37h 15m1 stop
$614China Airlines
Find Deal
Sat, Sep 28
12:35 pm - 6:40 pmICN-ONT
22h 05m1 stop
$617China Airlines
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Tue, Sep 3
8:50 am - 6:40 pmICN-ONT
25h 50m2 stops
Sat, Sep 7
9:25 pm - 9:45 pmICN-ONT
16h 20m1 stop
$761Hawaiian Airlines
Find Deal
Mon, Jun 24
9:25 pm - 9:45 pmICN-ONT
16h 20m1 stop
$763Hawaiian Airlines
Find Deal
Mon, Jun 24
11:30 am - 8:48 pmICN-ONT
25h 18m2 stops
6:20 am - 4:20 amONT-ICN
30h 00m1 stop
$963United Airlines
Find Deal
Thu, May 30 - Mon, Jun 3
11:30 am - 5:28 pmICN-ONT
21h 58m2 stops
1:29 pm - 4:20 amONT-ICN
22h 51m2 stops
$1,216United Airlines
Find Deal
Wed, May 29 - Wed, Jun 5
9:25 pm - 9:45 pmICN-ONT
16h 20m1 stop
9:40 am - 7:00 pmONT-ICN
17h 20m1 stop
$1,485Hawaiian Airlines
Find Deal
Sat, Jun 1 - Sat, Jun 8
7:20 pm - 6:02 pmICN-ONT
14h 42m1 stop
6:50 am - 4:30 pmONT-ICN
17h 40m1 stop
$1,752Korean Air
Find Deal
Thu, May 30 - Mon, Jun 3
12:35 pm - 6:05 pmICN-ONT
21h 30m1 stop
12:10 am - 7:45 pmONT-ICN
27h 35m1 stop
$1,779China Airlines
Find Deal
Sun, Jun 2 - Sat, Jun 8
12:35 pm - 6:05 pmICN-ONT
21h 30m1 stop
12:10 am - 11:10 amONT-ICN
19h 00m1 stop
$1,833China Airlines
Find Deal
Thu, May 30 - Sun, Jun 2
7:20 pm - 6:02 pmICN-ONT
14h 42m1 stop
6:50 am - 4:30 pmONT-ICN
17h 40m1 stop
$1,880Korean Air
Find Deal
Wed, May 29 - Wed, Jun 5
9:25 pm - 9:45 pmICN-ONT
16h 20m1 stop
9:40 am - 7:00 pmONT-ICN
17h 20m1 stop
$1,904Hawaiian Airlines
Find Deal
Sun, Jun 2 - Sun, Jun 9
7:50 am - 6:05 pmICN-ONT
26h 15m2 stops
12:10 am - 11:10 pmONT-ICN
31h 00m2 stops
$2,002
Find Deal
Thu, May 30 - Wed, Jun 5
1:20 am - 7:14 pmICN-ONT
33h 54m2 stops
8:20 pm - 5:35 pmONT-ICN
53h 15m2 stops
$10,350
Find Deal
Sun, Jun 2 - Wed, Jun 26

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 ($332) and American Airlines ($538), and the lowest round-trip tickets were found on United Airlines ($584) and American Airlines ($935).

Good to know

Low season

November

High season

December

Cheapest flight

$332
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 $332 for a one-way ticket and $584 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 10799 reviews
7.2Comfort
7.7Boarding
8.1Crew
7.1Entertainment
6.7Food
Airline reviews

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

8.0 ExcellentJohannes, May 2024PDX - SFO
Read more about United Airlines reviews

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.

Do not like the feeling of being in the basic economy. Everyone should feel good no matter what.

Our original business class flight was cancelled so we not only downgraded but we were also spread out across the plane not sitting together in separate middle seats. My poor kids were scared and couldn’t see me on the flight and the crew wasn’t sensitive to the situation and what the airlines did to us. Very dissatisfied with United airlines.

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.
9/18Wed
2 stopsUnited Airlines
21h 52mICN-ONT
$332
6/3Mon
2 stopsUnited Airlines
19h 58mICN-ONT
$334
9/18Wed
1 stopAmerican Airlines
20h 47mICN-ONT
$538
6/6Thu
2 stopsAmerican Airlines
38h 26mICN-ONT
$556
8/27Tue
2 stops
25h 00mICN-ONT
$568
9/28Sat
1 stopChina Airlines
37h 15mICN-ONT
$614
9/3Tue
1 stopChina Airlines
22h 05mICN-ONT
$617
9/7Sat
2 stops
25h 50mICN-ONT
$638
6/24Mon
1 stopHawaiian Airlines
16h 20mICN-ONT
$761
6/24Mon
1 stopHawaiian Airlines
16h 20mICN-ONT
$763

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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.
5/30Thu
multi-stopUnited Airlines
25h 18mICN-ONT
6/3Mon
multi-stopUnited Airlines
30h 00mONT-ICN
$963
5/29Wed
multi-stopUnited Airlines
21h 58mICN-ONT
6/5Wed
multi-stopUnited Airlines
22h 51mONT-ICN
$1,216
6/1Sat
multi-stopHawaiian Airlines
16h 20mICN-ONT
6/8Sat
multi-stopHawaiian Airlines
17h 20mONT-ICN
$1,485
5/30Thu
multi-stopKorean Air
14h 42mICN-ONT
6/3Mon
multi-stopKorean Air
17h 40mONT-ICN
$1,752
6/2Sun
multi-stopChina Airlines
21h 30mICN-ONT
6/8Sat
multi-stopChina Airlines
27h 35mONT-ICN
$1,779
5/30Thu
multi-stopChina Airlines
21h 30mICN-ONT
6/2Sun
multi-stopChina Airlines
19h 00mONT-ICN
$1,833
5/29Wed
multi-stopKorean Air
14h 42mICN-ONT
6/5Wed
multi-stopKorean Air
17h 40mONT-ICN
$1,880
6/2Sun
multi-stopHawaiian Airlines
16h 20mICN-ONT
6/9Sun
multi-stopHawaiian Airlines
17h 20mONT-ICN
$1,904
5/30Thu
multi-stop
26h 15mICN-ONT
6/5Wed
multi-stop
31h 00mONT-ICN
$2,002
6/2Sun
multi-stop
33h 54mICN-ONT
6/26Wed
multi-stop
53h 15mONT-ICN
$10,350

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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: