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Flight tickets from Ontario International to Incheon International

Compare Ontario International to Incheon International flight deals

Find the cheapest month or even day of the year to fly to Incheon International

Book the best Incheon International fare with no extra fees

Flight deals from Ontario International to Incheon International

Looking for a cheap last-minute deal or the best return flight from Ontario International to Incheon International? Find the lowest prices on one-way and return tickets right here.
Seoul.₹ 43,194 per passenger.Departing Sun, 31 Aug.One-way flight with Hawaiian Airlines.Outbound indirect flight with Hawaiian Airlines, departs from Ontario International on Sun, 31 Aug, arriving in Incheon International.Price includes taxes and charges.From ₹ 43,194, select.
Seoul.₹ 43,268 per passenger.Departing Thu, 4 Sep.One-way flight with Hawaiian Airlines.Outbound indirect flight with Hawaiian Airlines, departs from Ontario International on Thu, 4 Sep, arriving in Incheon International.Price includes taxes and charges.From ₹ 43,268, select.
Seoul.₹ 50,351 per passenger.Departing Wed, 1 Oct.One-way flight with China Airlines.Outbound indirect flight with China Airlines, departs from Ontario International on Wed, 1 Oct, arriving in Incheon International.Price includes taxes and charges.From ₹ 50,351, select.
Seoul.₹ 50,656 per passenger.Departing Sat, 8 Nov.One-way flight with China Airlines.Outbound indirect flight with China Airlines, departs from Ontario International on Sat, 8 Nov, arriving in Incheon International.Price includes taxes and charges.From ₹ 50,656, select.
Seoul.₹ 56,094 per passenger.Departing Tue, 18 Aug.One-way flight with China Airlines.Outbound indirect flight with China Airlines, departs from Ontario International on Tue, 18 Aug, arriving in Incheon International.Price includes taxes and charges.From ₹ 56,094, select.
Seoul.₹ 56,152 per passenger.Departing Sun, 10 May.One-way flight with China Airlines.Outbound indirect flight with China Airlines, departs from Ontario International on Sun, 10 May, arriving in Incheon International.Price includes taxes and charges.From ₹ 56,152, select.
Seoul.₹ 56,195 per passenger.Departing Thu, 8 Jan.One-way flight with China Airlines.Outbound indirect flight with China Airlines, departs from Ontario International on Thu, 8 Jan, arriving in Incheon International.Price includes taxes and charges.From ₹ 56,195, select.
Seoul.₹ 56,238 per passenger.Departing Mon, 13 Apr.One-way flight with China Airlines.Outbound indirect flight with China Airlines, departs from Ontario International on Mon, 13 Apr, arriving in Incheon International.Price includes taxes and charges.From ₹ 56,238, select.

Find the cheapest month to fly from Ontario International to Incheon International from ₹ 43,194 one-way

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Ontario International to Incheon International flights are currently cheapest in August.
Aug
from ₹ 43,194
Sep
from ₹ 43,268
Oct
from ₹ 50,351
Nov
from ₹ 50,656
Dec
from ₹ 68,161
Jan
from ₹ 56,195
Feb
from ₹ 56,279
Mar
from ₹ 56,279
Apr
from ₹ 56,238
May
from ₹ 56,152
Jun
from ₹ 78,173
Jul
from ₹ 71,478

Ontario International to Incheon International: Alternative routes

Compare routes from Ontario International to Seoul below. You may find an airport to fly into that's cheaper, faster, or easier than Incheon International.

Ontario to Seoul: Flight information

The things to know before you go.
Cheapest flight found₹ 43,194
Cheapest month to flyAugust

Finding cheap flights from Ontario International to Incheon International: Frequently asked questions

The best price we found for a return flight from Ontario International to Incheon International is ₹ 78,070. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Ontario International to Incheon International. But we found flights with one or more stops from ₹ 78,070.
As of August 2025, there are no flights flying from Ontario International to Incheon International.
The cheapest month to fly from Ontario International to Incheon International is usually October.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Ontario International Airport to Incheon International Airport on Monday, 13 October 2025.
No airlines currently offer direct flights between Ontario International Airport and Incheon International Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Incheon International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Seoul is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Frontier Airlines offers the cheapest flight tickets to Incheon International.

Travelling from Ontario International Airport (ONT) to Incheon International Airport (ICN): what you need to know

  • The timezone in Seoul is UTC+9, which is 16 hours ahead of Ontario.

  • Your ONT to ICN flight won't wait if you're running late, so get to the airport with time to spare. Arrive up to one hour in advance for domestic flights and two hours ahead when you're flying internationally.

  • Travelling during a peak month like August? Major public holidays and other popular periods can mean longer lines and delays at check-in and security. Be extra cautious and get there up to four hours before an international flight and two hours before a domestic departure.

  • If you want to include a stop along the way, simply uncheck 'Direct flights only' when searching for your ticket from Ontario International Airport to Incheon International Airport. Here are the most popular stopovers between ONT and ICN:

    • Harry Reid Airport (formerly McCarran Airport)

    • San Francisco International Airport

    • Daniel K. Inouye International Airport

How to find the cheapest flights from Ontario International Airport (ONT) to Incheon International Airport (ICN)

  • At the moment, ₹ 43,194 is the cheapest price we've found for a one-way Ontario International Airport to Incheon International Airport flight. The best price for a return plane ticket is ₹ 78,070. Keep in mind that fares may change due to availability at the time of booking.

  • It's usually smart to book early if you're looking for cheap tickets from ONT to ICN. That's because flight prices are based on demand, which tends to rise closer to the date of departure.

  • Getting cheap flights from Ontario International Airport to Incheon International Airport is easy if you can be flexible with your trip dates. Use the 'Whole month' tool to see the lowest fares throughout the month and bag a great deal.

  • Cut down on the time spent looking for cheap flights from ONT to ICN by creating a Price Alert. You'll get an email or push notification on the app when a new discounted fare appears.

  • Tailor your trip using filters. Choose your preferred arrival and departure times, total journey duration and airlines. You can also sort the results by 'Best,' 'Fastest' or 'Cheapest' flights from Ontario International Airport to Incheon International Airport.

Handy information about Ontario International Airport (ONT)

  • ONT's address is 2900 E. Airport Drive.

  • 83.6% of flights departing from Ontario International Airport reach their destination on schedule. With its strong performance rating, delays are unlikely when flying out of ONT.

  • Ontario International Airport is around 6 kilometres from central Ontario. If you're ride-sharing, catching a cab or driving from the centre, it'll take 10 minutes or so to arrive, depending on the traffic.

  • You can expect a journey time of roughly 1 hour 30 minutes when using public transport.

  • Get your journey off to a hassle-free start by staying near ONT. Whether you've booked an early flight from Ontario International Airport to Incheon International Airport or want to avoid feeling rushed, these hotels have you covered:

Arriving at Incheon International Airport (ICN)

  • If you're coming in on a late Ontario International Airport to Incheon International Airport flight, few things beat the convenience of staying near the terminal. Grab your bags from the carousel and then be resting not long after at one of these options near ICN:

  • Grab an Incheon International Airport rental car and explore Seoul and beyond with your own wheels. WECAR, Hi Rent A Car and Alamo are leading providers you can book with here.

  • Reserving your vehicle from Incheon International Airport around four weeks ahead can help you get the best possible rate.

Getting from Incheon International Airport (ICN) to central Seoul

  • Central Seoul is roughly 48 kilometres from Incheon International Airport. Travel time by car will vary based on time of day, so do some research before your trip.

  • It takes roughly 1 hour 45 minutes when travelling by public transport.

When to fly to Incheon International Airport (ICN)

  • July is the most popular month for flights from Ontario International Airport to Incheon International Airport. To skip the crowds, visit Seoul in April.

  • The warmest month in Seoul is August, with temperatures ranging between 19ºC and 32ºC. Book your flights from Ontario International Airport to Incheon International Airport in this month if this is the kind of weather you like.

  • Search for cheap tickets from ONT to ICN in January if you'd rather travel during cooler conditions. Temperatures are at their lowest then, ranging between -12ºC and 4ºC on average.

Explore more of South Korea

  • You've visited Seoul, now it's time to explore other parts of South Korea. Travel around 322 kilometres south-east to Busan to check off its leading attractions. From Haeundae Beach to Gamcheon Culture Village and Beomeosa Temple, there's plenty to keep you on the go.

  • Incheon is another standout destination in South Korea and is around 56 kilometres west of Seoul. No journey is complete without dropping by Lawn Square of Incheon International Airport, Yeongjong Sky City No.23 Park and 스카이72 GC 바다코스.

Plan the rest of your trip from Ontario to Seoul

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.