How far in advance should I book a flight from Ontario to Seoul Gimpo Intl Airport?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 12 days in advance, which can save you up to 23% on flights from Ontario to Seoul Gimpo Intl Airport compared to booking the week you need them. Waiting 12 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $661. For sooner than that we have options available in the next 3 days from $937.

What is the cheapest month to fly from Ontario to Seoul Gimpo Intl Airport?

Due to multiple factors, expect to potentially pay more when booking in June. For low rates, February can be a great choice for travel to Seoul Gimpo Intl Airport. Flights to Seoul Gimpo Intl Airport from Ontario in February are about $1,104 on average during February, but can be found for as low as $413.

What is the cheapest time of day to fly from ONT to GMP?

When flying from Ontario to Seoul Gimpo Intl Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Most accurate provider : When it comes to deals on Ontario-Seoul Gimpo Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Seoul Gimpo Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Seoul Gimpo Intl Airport flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Ontario-Seoul Gimpo Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Seoul Gimpo Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

What airport do you fly from for flights from Ontario to Seoul Gimpo Intl?

For a flight from Ontario to Seoul Gimpo Intl, you will be flying from Ontario. Ontario (ONT) is just 3.1 mi from the center of the city. Ontario is the only Ontario airport and it handles 0 outbound flights to Seoul Gimpo Intl per day. 0 airlines have flights to Seoul Gimpo Intl from Ontario on a regular basis.

Can I find deals for flights from Ontario to Gimpo Intl that include hotel bookings?

Yes. In addition to deals on Ontario to Gimpo Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Ontario to Gimpo Intl?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Gimpo Intl.

Can I find deals for business class flights from Ontario to Gimpo Intl?

Yes. Cheapflights offers flight deals from Ontario to Gimpo Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$721+ Flights from Ontario to Seoul Gimpo Intl Airport

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1. Tell us where you want to go

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Cheap flight deals from Ontario to Gimpo Intl

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$1,419 (Mytrip)
One-way from	$721 (Trip.com)
Popular in	June
Cheapest in	February
Average price	$959

Provider with most accurate pricing for Ontario-Seoul Gimpo Intl flight deals.

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Provider most trusted by Cheapflights users for Ontario-Seoul Gimpo Intl flights.

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From Ontario to Seoul Gimpo Intl

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One-way flight from Ontario to Seoul Gimpo Intl

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Highest demand for flights based on searches. 17% potential increase in price ($242 potential increase over avg. RT price).

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Cheapest flight prices on average. 3% potential price decrease ($35 potential savings vs. average RT price).

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Average for round-trip flights in March 2025

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Find flight deals from Ontario to Gimpo Intl

Cheapest flights from Ontario to Gimpo Intl
Explore the most affordable flight options available from Ontario to Gimpo Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 25, 2025.

Wed 4/912:10 amONT - GMP

2 stops26h 20mMultiple Airlines

Mon 4/218:20 amGMP - ONT

2 stops25h 40mMultiple Airlines

Deal found 3/24

$1,419

Best flights from Ontario to Gimpo Intl
Discover carefully curated flight deals from Ontario to Gimpo Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 25, 2025.

Wed 4/912:10 amONT - GMP

2 stops26h 20mMultiple Airlines

Mon 4/218:20 amGMP - ONT

2 stops25h 40mMultiple Airlines

Deal found 3/24

$1,419

Last-minute flights from Ontario to Gimpo Intl
Discover last-minute flight deals from Ontario to Gimpo Intl. Data last updated March 25, 2025 and is based on user searches.

Tue 4/16:00 amONT - GMP

2 stops23h 50mMultiple Airlines

Mon 4/77:55 amGMP - ONT

2 stops26h 34mMultiple Airlines

Deal found 3/24

$2,081

Wed 4/912:10 amONT - GMP

2 stops26h 20mMultiple Airlines

Mon 4/218:20 amGMP - ONT

2 stops25h 40mMultiple Airlines

Deal found 3/24

$1,419

One-way flights from Ontario to Gimpo Intl
Search for one-way flight options from Ontario to Gimpo Intl. Find affordable one-way fares based on user searches. Data last updated March 25, 2025.

Thu 4/1012:10 amONT - GMP

1 stop25h 15mMultiple Airlines

Deal found 3/24

$721

Mon 4/216:00 amONT - GMP

2 stops23h 50mJapan Airlines

Deal found 3/23

$727

Cheapflights Fare Finder

Use the filters below to find and compare flights from Ontario to Seoul Gimpo Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

OntarioSeoul

ONT - GMP

ONTGMP

Ontario

Wed 4/9

12:10 am-6:30 pm

2 stops26h 20m

Seoul Gimpo Intl

Mon 4/21

8:20 am-6:00 pm

2 stops25h 40m

$1,419

OntarioSeoul

ONT - GMP

ONTGMP

Ontario

Thu 4/10

12:10 am-5:25 pm

1 stop25h 15m

$721

OntarioSeoul

ONT - GMP

ONTGMP

Ontario

Mon 4/21

6:00 am-9:50 pm

2 stops23h 50m

$727

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/24

Compare providers for flights from Ontario to Gimpo Intl

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Gimpo Intl in March.

Provider	Price Accuracy	Trust Score*
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars
AranGrant	Price Accuracy3 stars	Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Ontario-Seoul Gimpo Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Seoul Gimpo Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Seoul Gimpo Intl Airport flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Ontario-Seoul Gimpo Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Seoul Gimpo Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Ontario to Gimpo Intl

Have a flexible travel schedule? Discover the best time to fly to Gimpo Intl from Ontario with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Ontario to Seoul Gimpo Intl Airport

Rainfall in Gimpo Intl by month

In terms of precipitation, rainfall in Seoul Gimpo Intl Airport ranges from 1.1 - 10.0 inches per month. July is typically the wettest month, when rainfall can reach 10.0 in. December is typically the driest time to visit Seoul Gimpo Intl Airport when rainfall is around 1.1 in.

Temperature in Gimpo Intl by month

If weather is an important factor for your trip to Seoul Gimpo Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 77.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

Reviews of airlines servicing Gimpo Intl

Japan Airlines

8.3

Very good

1,440 reviews

Reviews

1 / 20

8.0

Excellent

Diego,Nov 2024

HKG - NRT

overall very good; just found a bit poor the food options in Narita airport but the in the flight it was good but limited (no real choice to avoid seafood or clearly stay away from pork..); most of the food was tasty tho and the choice was nice, specially their snacks and dessert and drinks. The in-flight systems was so-so (too complicated interface; they should rehaul with a proper UIX), and I specially appreciated their segments of videos capsules about the behind the scenes including an overview of technicalities of their aircraft and days in the life of their pilots. It was refreshing and give a good ideas of the efforts and challenges every employees has to deal with. Loved it!

Japan Airlines

8.3

Very good

1,440 reviews

Japan Airlines

8.3

Very good

1,440 reviews

Reviews

1 / 20

8.0

Excellent

Diego,Nov 2024

HKG - NRT

Related info for your journey

What airport do you fly from for flights from Ontario to Seoul Gimpo Intl?
For a flight from Ontario to Seoul Gimpo Intl, you will be flying from Ontario. Ontario (ONT) is just 3.1 mi from the center of the city. Ontario is the only Ontario airport and it handles 0 outbound flights to Seoul Gimpo Intl per day. 0 airlines have flights to Seoul Gimpo Intl from Ontario on a regular basis.
Can I find deals for flights from Ontario to Gimpo Intl that include hotel bookings?
Yes. In addition to deals on Ontario to Gimpo Intl flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Ontario to Gimpo Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Gimpo Intl.
Can I find deals for business class flights from Ontario to Gimpo Intl?
Yes. Cheapflights offers flight deals from Ontario to Gimpo Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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$721+ Cheap flights from Ontario (ONT) to Gimpo Intl (GMP)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/10. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Ontario to Gimpo Intl with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Ontario to Gimpo Intl

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Ontario to Gimpo Intl

Cheapest flights from Ontario to Gimpo IntlExplore the most affordable flight options available from Ontario to Gimpo Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 25, 2025.

Explore the most affordable flight options available from Ontario to Gimpo Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 25, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Ontario to Seoul Gimpo Intl Airport that are best for you.

Compare providers for flights from Ontario to Gimpo Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Gimpo Intl in March.

Best time to book a flight from Ontario to Gimpo Intl

Have a flexible travel schedule? Discover the best time to fly to Gimpo Intl from Ontario with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Ontario to Seoul Gimpo Intl Airport

Rainfall in Gimpo Intl by month

Plan your trip to Gimpo Intl by taking into account the average rainfall totals by month.

Temperature in Gimpo Intl by month

Plan your trip to Gimpo Intl by taking into account the average temperature totals by month.

Reviews of airlines servicing Gimpo Intl

Related info for your journey

Find useful and relevant information for your journey from Ontario to Gimpo Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly from for flights from Ontario to Seoul Gimpo Intl?

Can I find deals for flights from Ontario to Gimpo Intl that include hotel bookings?

How can I find direct flights from Ontario to Gimpo Intl?

Can I find deals for business class flights from Ontario to Gimpo Intl?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ontario to Gimpo Intl

See prices for flight routes from nearby airports that may be better suited for you.

100% Free

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Travel Smart

Cheapest flights from Ontario to Gimpo Intl
Explore the most affordable flight options available from Ontario to Gimpo Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 25, 2025.