ICN - ONT

$618 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 to Ontario departing on 5/8. 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
1 adult, Economy, 0 bags

KAYAK searches 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
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$776
United Airlines
Tue 5/26Tue 8/25
ICN - ONT • 1 stop
Cheapest one-way
$618
United Airlines
Fri 5/8
ICN - ONT • 1 stop
Nonstop flights
Not available
There are currently no direct flights between Incheon and Ontario. You'll need at least 1 connection.
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Top layover airports
Taipei City (TPE)
Cheapest • Avg $2,581 (round-trip)
San Francisco (SFO)
Shortest trip • 14h 00m (one-way)
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Ontario!
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Booking Insights
Flight Deals

Cheap Flights from Incheon to Ontario (ICN-ONT)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Incheon to Ontario that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Incheon to Ontario

Tue, May 26 - Tue, Aug 25
United Airlines Logo
4:50 pm - 12:12 pm
ICN
-
ONT
35h 22m
1 stop
United Airlines Logo
1:44 pm - 3:00 pm
ONT
-
ICN
33h 16m
1 stop
$776United Airlines
Wed, Aug 26 - Mon, Aug 31
United Airlines Logo
11:30 am - 12:12 pm
ICN
-
ONT
16h 42m
1 stop
United Airlines Logo
8:00 am - 3:00 pm
ONT
-
ICN
15h 00m
1 stop
$780United Airlines
Tue, Sep 1 - Sat, Sep 5
United Airlines Logo
11:30 am - 12:12 pm
ICN
-
ONT
16h 42m
1 stop
United Airlines Logo
7:13 pm - 4:20 am
ONT
-
ICN
17h 07m
1 stop
$781United Airlines
Tue, Aug 25 - Mon, Aug 31
United Airlines Logo
11:30 am - 12:12 pm
ICN
-
ONT
16h 42m
1 stop
United Airlines Logo
8:00 am - 3:00 pm
ONT
-
ICN
15h 00m
1 stop
$809United Airlines
Fri, Oct 2 - Tue, Oct 6
Korean Air Logo
7:00 pm - 5:16 pm
ICN
-
ONT
14h 16m
1 stop
Korean Air Logo
6:00 am - 3:20 pm
ONT
-
ICN
17h 20m
1 stop
$841Korean Air
Thu, May 14 - Wed, May 20
Multiple Airlines Logo
7:00 pm - 11:58 pm
ICN
-
ONT
20h 58m
1 stop
Multiple Airlines Logo
7:41 pm - 4:50 pm
ONT
-
ICN
29h 09m
1 stop
$907Multiple Airlines
Wed, May 20 - Mon, Oct 19
Asiana Airlines Logo
4:50 pm - 5:52 pm
ICN
-
ONT
17h 02m
1 stop
Asiana Airlines Logo
6:00 am - 3:00 pm
ONT
-
ICN
17h 00m
1 stop
$919Asiana Airlines
Sun, Oct 4 - Fri, Nov 6
Delta Logo
7:20 pm - 11:44 pm
ICN
-
ONT
20h 24m
1 stop
Delta Logo
7:00 am - 5:55 pm
ONT
-
ICN
17h 55m
1 stop
$948Delta
Wed, Sep 2 - Tue, Sep 8
Delta Logo
7:00 pm - 11:44 pm
ICN
-
ONT
20h 44m
2 stops
Delta Logo
6:00 am - 3:20 pm
ONT
-
ICN
17h 20m
1 stop
$959Delta
Fri, Aug 28 - Sun, Sep 6
Delta Logo
7:20 pm - 11:44 pm
ICN
-
ONT
20h 24m
1 stop
Delta Logo
7:00 am - 4:50 pm
ONT
-
ICN
17h 50m
1 stop
$964Delta
Booking Insights

KAYAK's insights & trends for Incheon to Ontario flights

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

Which airlines provide the cheapest flights from Incheon to Ontario?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Incheon to Ontario were found on United Airlines ($776) and Korean Air ($841).

Find deals

Good to know

Cheapest flight$618
Flight from Incheon to Ontario

When to book flights from Incheon to Ontario

Are your dates flexible? Find out the best times to travel from Incheon 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 $618 for a one-way ticket and $776 for a round-trip.

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

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

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

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

  • How does KAYAK find such low prices on flights from Incheon 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 Incheon to Ontario.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario from Incheon 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 Incheon 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 Incheon with another airline. Booking your flights between Incheon 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 Incheon 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 Incheon up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight from Incheon to Ontario

Information on your arrival and departure airports

Incheon (ICN)
Ontario (ONT)