Cheap flights from Newark Airport to Seoul from $378

The cheapest month to fly to Incheon Intl Airport from Newark Airport is in September. Flight prices, which tend to average around $943, are often lower during this time because this is during the off-season. If you are unable to visit Incheon Intl Airport during the month of September, then departing from Newark Airport during the month October is also very affordable. Most momondo users find prices during this month for around $979.

The cheapest day to depart from Newark Airport to Incheon Intl Airport is on a Tuesday when prices can be found for as low as $1,022. If your travel schedule is flexible, try to avoid departing on a Friday because tickets tend to average around $1,145. These prices are subject to change though, so be sure to set up a Price Alert for flights to Incheon Intl Airport.

In the evening is the cheapest time of day to fly from Newark Airport to Incheon Intl Airport when you can find flight prices for as low as $1,067. Flying to Incheon Intl Airport in the evening is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $1,093 on average. Flights to Incheon Intl Airport from Newark Airport at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

Fly from Newark to Incheon Intl for the best Newark - Incheon Intl flight prices

You are more likely to see cheaper flights to Incheon Intl Airport from Newark Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Incheon Intl Airport for around $1,136 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Incheon Intl Airport from Newark Airport for as low as $896 on momondo.

There are 3 cabin classes available to choose from on Newark Airport to Incheon Intl Airport flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

AIR PREMIA, Delta, and United Airlines are the most popular carriers operating from Newark to Incheon Intl

AIR PREMIA, United Airlines and Asiana Airlines are the top three most popular airlines that fly to Incheon Intl Airport from Newark Airport according to our data. AIR PREMIA is the first choice among our users, with 91% of people opting to fly with this airline when traveling to Incheon Intl Airport. Keep in mind that there are 5 different airlines that fly to Incheon Intl Airport on a routine basis, so you have a few additional options to choose from.

Historically, on average around 12% of flights between Newark and Incheon have experienced a delay on any given week. The average delay length over the past 12 months has been 157 minutes.

Generally, flights departing at night tend to experience fewer delays. Flights at night have, in the past, seen delays more frequently in comparison.

Thursday is statistically the day of the week which experiences the fewest number of delays on this flight route. Monday has historically seen more delays on average compared to the rest of the week.

According to our data, AIR PREMIA have had the least number of delays on this route over the last 12 months; with about 12% of their flights experiencing any sort of delay.

2 flights are operational daily from Newark Airport to Incheon Intl Airport as of October 2026. The most popular departure time for this route is 1:00AM, with 50% of flights per day taking off in the morning.

As of October 2026, 14 flights take off from Newark Airport and land in Incheon Intl Airport each week. The most common flight departure day for this route is Mon, with 14% of weekly flights taking off on this day.