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Gimpo Intl

$499+ 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 5/14. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — GMP
Apr 10 — Apr 171
Fri 4/10
Fri 4/17
1 adult, Economy
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Cheap 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 11, 2026.

This American Airlines deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/1411:59 pm
ONT
-
GMP
2 stops29h 16m
Multiple Airlines
Wed 4/228:00 am
GMP
-
ONT
2 stops26h 37m
Multiple Airlines
Deal found 3/7$1,547
This American Airlines deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/1511:59 pm
ONT
-
GMP
2 stops25h 56m
Multiple Airlines
Fri 9/188:00 am
GMP
-
ONT
2 stops25h 39m
Multiple Airlines
Deal found 3/9$1,775
This Gurufare deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/310:37 am
ONT
-
GMP
2 stops32h 28m
ANA
Wed 5/2012:40 pm
GMP
-
ONT
2 stops26h 19m
ANA
Deal found 3/9$1,994
This American Airlines deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/1611:59 pm
ONT
-
GMP
2 stops29h 16m
Multiple Airlines
Sun 5/248:00 am
GMP
-
ONT
2 stops27h 56m
Multiple Airlines
Deal found 3/7$1,996
This KAYAK deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/310:37 am
ONT
-
GMP
2 stops32h 28m
ANA
Tue 5/1912:40 pm
GMP
-
ONT
2 stops26h 19m
ANA
Deal found 3/9$1,999
This Japan Airlines deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/2311:59 pm
ONT
-
GMP
2 stops42h 41m
Multiple Airlines
Sun 4/267:15 pm
GMP
-
ONT
2 stops34h 03m
Multiple Airlines
Deal found 3/10$2,025
This Mytrip deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/212:10 am
ONT
-
GMP
3 stops30h 25m
Multiple Airlines
Fri 4/108:00 am
GMP
-
ONT
2 stops25h 05m
Multiple Airlines
Deal found 3/6$2,205
This KAYAK deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/106:14 am
ONT
-
GMP
2 stops23h 51m
Japan Airlines
Thu 3/198:00 am
GMP
-
ONT
2 stops26h 13m
Japan Airlines
Deal found 3/8$2,268
This KAYAK deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/106:14 am
ONT
-
GMP
2 stops23h 51m
Japan Airlines
Tue 3/178:00 am
GMP
-
ONT
2 stops23h 08m
Japan Airlines
Deal found 3/8$2,319
This KAYAK deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/106:14 am
ONT
-
GMP
2 stops23h 51m
Japan Airlines
Sat 3/1412:05 pm
GMP
-
ONT
2 stops19h 03m
Japan Airlines
Deal found 3/8$2,362

Find flight deals from Ontario to Gimpo Intl

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Gimpo Intl (GMP). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated March 11, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,547
(American Airlines)

One-way from

$499
(Kiwi.com)

Popular in

December

Cheapest in

April

Average price

$944
Provider with most accurate pricing for Ontario-Seoul Gimpo Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ontario-Seoul Gimpo Intl flights.
Search Deals
From Ontario to Seoul Gimpo Intl
Search Deals
One-way flight from Ontario to Seoul Gimpo Intl
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($39 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($24 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Gimpo Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 11, 2026.
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

Cheapest round-trip

OntarioSeoul

ONT - GMP

ONTGMP

Ontario

Tue 4/14

11:59 pm-9:15 pm

2 stops29h 16m

Seoul Gimpo Intl

Wed 4/22

8:00 am-6:37 pm

2 stops26h 37m

$1,547

OntarioSeoul

ONT - GMP

ONTGMP

Ontario

Sun 5/3

10:37 am-11:05 am

2 stops32h 28m

Seoul Gimpo Intl

Wed 5/20

12:40 pm-10:59 pm

2 stops26h 19m

$1,994

OntarioSeoul

ONT - GMP

ONTGMP

Ontario

Sat 5/16

11:59 pm-9:15 pm

2 stops29h 16m

Seoul Gimpo Intl

Sun 5/24

8:00 am-7:56 pm

2 stops27h 56m

$1,996

OntarioSeoul

ONT - GMP

ONTGMP

Ontario

Sun 5/3

10:37 am-11:05 am

2 stops32h 28m

Seoul Gimpo Intl

Tue 5/19

12:40 pm-10:59 pm

2 stops26h 19m

$1,999

OntarioSeoul

ONT - GMP

ONTGMP

Ontario

Thu 4/23

11:59 pm-10:40 am

2 stops42h 41m

Seoul Gimpo Intl

Sun 4/26

7:15 pm-1:18 pm

2 stops34h 03m

$2,025
Quickest round-trip

OntarioSeoul

ONT - GMP

ONTGMP

Ontario

Thu 4/2

12:10 am-10:35 pm

3 stops30h 25m

Seoul Gimpo Intl

Fri 4/10

8:00 am-5:05 pm

2 stops25h 05m

$2,205

OntarioSeoul

ONT - GMP

ONTGMP

Ontario

Sun 4/19

11:59 pm-9:15 pm

2 stops29h 16m

Seoul Gimpo Intl

Wed 4/22

7:15 pm-1:18 pm

2 stops34h 03m

$2,546

OntarioSeoul

ONT - GMP

ONTGMP

Ontario

Sat 4/18

11:59 pm-9:15 pm

2 stops29h 16m

Seoul Gimpo Intl

Sat 4/25

7:15 pm-1:18 pm

2 stops34h 03m

$2,548

OntarioSeoul

ONT - GMP

ONTGMP

Ontario

Sat 4/18

11:59 pm-9:15 pm

2 stops29h 16m

Seoul Gimpo Intl

Fri 4/24

7:15 pm-1:18 pm

2 stops34h 03m

$2,661

OntarioSeoul

ONT - GMP

ONTGMP

Ontario

Thu 4/30

11:59 pm-10:40 am

2 stops42h 41m

Seoul Gimpo Intl

Tue 5/5

7:15 pm-1:18 pm

2 stops34h 03m

$2,851

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/11

Showing 1-10 of 21 resultsSorted by cheapest first
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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.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars

*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.

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?

    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.

  • How long is the flight from Ontario to Seoul Gimpo Intl Airport?

    A quick flight from Ontario to Seoul Gimpo Intl Airport can take about 32h 28m. ANA provides one of the quickest options available for as low as $1,994. The distance between Ontario and Seoul Gimpo Intl Airport is about 5986 mi.

  • 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.

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