$485 Cheap Flights from Dayton (DAY) to Seoul (GMP)

View $485 flight on Fri, Jan 23, 2026Opens in a new window

Popular airlines from Dayton Intl. Airport (DAY) to Gimpo Intl. Airport (GMP)

Cheap Flights from Dayton to Seoul (DAY-GMP)

Prices were available within the past 7 days and start at $485 for one-way flights and $1,049 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Japan Airlines
Sun, Dec 7 - Fri, Dec 19
DAY
Dayton
GMP
Seoul
$1,049 Roundtrip, found 2 days ago
$1,049
Roundtrip
found 2 days ago
Select Japan Airlines flight, departing Sun, Dec 7 from Dayton to Seoul, returning Fri, Dec 19, priced at $1,049 found 2 days ago
Japan Airlines
Tue, Dec 2 - Fri, Dec 19
DAY
Dayton
GMP
Seoul
$1,170 Roundtrip, found 2 days ago
$1,170
Roundtrip
found 2 days ago
Select Japan Airlines flight, departing Tue, Dec 2 from Dayton to Seoul, returning Fri, Dec 19, priced at $1,170 found 2 days ago
Japan Airlines
Tue, Dec 2 - Tue, Dec 16
DAY
Dayton
GMP
Seoul
$1,190 Roundtrip, found 2 days ago
$1,190
Roundtrip
found 2 days ago
Select Japan Airlines flight, departing Tue, Dec 2 from Dayton to Seoul, returning Tue, Dec 16, priced at $1,190 found 2 days ago
Japan Airlines
Wed, Jan 7 - Wed, Jan 21
DAY
Dayton
GMP
Seoul
$1,197 Roundtrip, found 2 days ago
$1,197
Roundtrip
found 2 days ago
Select Japan Airlines flight, departing Wed, Jan 7 from Dayton to Seoul, returning Wed, Jan 21, priced at $1,197 found 2 days ago
Japan Airlines
Sun, Dec 7 - Tue, Dec 16
DAY
Dayton
GMP
Seoul
$1,240 Roundtrip, found 2 days ago
$1,240
Roundtrip
found 2 days ago
Select Japan Airlines flight, departing Sun, Dec 7 from Dayton to Seoul, returning Tue, Dec 16, priced at $1,240 found 2 days ago
Japan Airlines
Wed, Jan 14 - Sat, Jan 31
DAY
Dayton
GMP
Seoul
$1,245 Roundtrip, found 2 days ago
$1,245
Roundtrip
found 2 days ago
Select Japan Airlines flight, departing Wed, Jan 14 from Dayton to Seoul, returning Sat, Jan 31, priced at $1,245 found 2 days ago
Japan Airlines
Sun, Jan 11 - Wed, Jan 21
DAY
Dayton
GMP
Seoul
$1,252 Roundtrip, found 2 days ago
$1,252
Roundtrip
found 2 days ago
Select Japan Airlines flight, departing Sun, Jan 11 from Dayton to Seoul, returning Wed, Jan 21, priced at $1,252 found 2 days ago
Japan Airlines
Thu, Jan 8 - Wed, Jan 21
DAY
Dayton
GMP
Seoul
$1,272 Roundtrip, found 2 days ago
$1,272
Roundtrip
found 2 days ago
Select Japan Airlines flight, departing Thu, Jan 8 from Dayton to Seoul, returning Wed, Jan 21, priced at $1,272 found 2 days ago
American Airlines
Sat, Dec 6 - Thu, Dec 11
DAY
Dayton
GMP
Seoul
$1,435 Roundtrip, found 2 days ago
$1,435
Roundtrip
found 2 days ago
Select American Airlines flight, departing Sat, Dec 6 from Dayton to Seoul, returning Thu, Dec 11, priced at $1,435 found 2 days ago
All Nippon Airways
Tue, Feb 3 - Tue, Feb 17
DAY
Dayton
GMP
Seoul
$1,917 Roundtrip, found 5 days ago
$1,917
Roundtrip
found 5 days ago
Select All Nippon Airways flight, departing Tue, Feb 3 from Dayton to Seoul, returning Tue, Feb 17, priced at $1,917 found 5 days ago

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Alternative airports near Seoul

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Incheon Intl. ICN. Cheapest option available. Average driving time to city center is 47 minutes. Flights from $995
ICN
Incheon Intl.
Cheapest
Average driving time to city center47 min
Flights from $995
Flights from Dayton (DAY) to Seoul (GMP)
Origin airport
James M. Cox Dayton Intl.
Destination airport
Gimpo Intl.
Roundtrip price
$1,049
Distance
6734 mi

Dayton to Seoul Flights

The cheapest times to fly from Dayton to Seoul

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Dayton to Seoul are during the month of December. You can find some of the cheapest flights from Dayton to Seoul with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Dayton to Seoul

Sunday is one of the best days to book for cheap flights from Dayton to Seoul: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Dayton to Seoul

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Dayton to Seoul in 2025. You can also book with separate airlines for your outbound and return journeys, from $485 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Dayton to Seoul flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Dayton to Seoul airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from James M. Cox Dayton Intl. Airport (DAY) to Gimpo Intl. Airport (GMP) cost?
Snag a cheap one-way flight from $485 or cheap return flight from $1,049 from James M. Cox Dayton Intl. Airport (DAY) to Gimpo Intl. Airport (GMP) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from James M. Cox Dayton Intl. Airport (DAY) to Gimpo Intl. Airport (GMP)?
The cheapest month to fly from DAY to GMP is December, when there's less demand. Off-peak season is typically when airlines offer better prices between these airports.
What is the cheapest airline that flies from James M. Cox Dayton Intl. Airport (DAY) to Gimpo Intl. Airport (GMP)?
To find the cheapest airline flying from DAY to GMP, use Expedia's filter tool. Customize your search based on what matters most to you, such as preferred carriers and seat class. You can then sort your results by "Price (lowest to highest)" to list the most affordable options first.
How many flights per day from James M. Cox Dayton Intl. Airport (DAY) to Gimpo Intl. Airport (GMP)?
You'll have to hop on a flight with a layover if you're traveling from James M. Cox Dayton Intl. Airport (DAY) to Gimpo Intl. Airport (GMP). There are no daily direct flights on this route. However, simply filter your search to include one or two stops to discover the best option for your trip.
What day of the week has the most flights from DAY to GMP?
Typically you'll find the greatest selection of flight options on a Friday. Tuesdays tend to be the quietest.* However, this can vary based on the season, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from James M. Cox Dayton Intl. Airport (DAY) to Gimpo Intl. Airport (GMP)?
To avoid possible delays on the James M. Cox Dayton Intl. Airport (DAY) to Gimpo Intl. Airport (GMP) route, aim to fly before 3 PM. Departures after this time have a 22% higher chance of cancellation.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from James M. Cox Dayton Intl. Airport (DAY) to Gimpo Intl. Airport (GMP) last-minute?
Waiting until just before your trip to book a ticket from DAY to GMP often results in higher prices. While you may find some last-minute deals, they aren't always guaranteed. Allow some flexibility in your schedule to maximize your chances of snagging a bargain.
Is it cheaper to book a DAY to GMP flight and hotel package?
You'll typically save money by booking a DAY to GMP flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one convenient place. After choosing your preferred accommodations and flights, consider other add-ons like tours, activities and car rentals.
Can I cancel or change the date of my flight from James M. Cox Dayton Intl. Airport (DAY) to Gimpo Intl. Airport (GMP)?
If you reserved your DAY to GMP flight in the last 24 hours, you may be able to cancel or modify it at no cost. Depending on the airline and the type of ticket you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for further details.

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*Available to One Key members.