Q: Which airline has the best punctuality record on Washington, D.C. to Ulsan flights?

Based on our data, United Airlines have experienced the fewest delays on this route in the past 12 months, with only about 16% of their flights encountering any delays.

Question 1

Do I need a passport to fly between Washington, D.C. and Ulsan?

Accepted Answer

Yes <a href='/flight-routes/Washington-Dulles-Intl-IAD/Ulsan-USN'>Visit our flight page for the latest deals!>/a>

Question 2

What’s the cheapest day of the week to fly from Washington, D.C. to Ulsan?

Accepted Answer

When flying from Washington, D.C. to Ulsan, you should consider leaving on a Tuesday and avoid Mondays if you are looking for the best rates. For your return to Washington, D.C., you’ll find the best rates on Wednesdays and the most expensive ones on Thursdays. Visit our flight page for the latest deals!>/a>

Question 3

What’s the cheapest day of the week to fly from Washington, D.C. to Ulsan?

Accepted Answer

When flying from Washington, D.C. to Ulsan, you should consider leaving on a Tuesday and avoid Mondays if you are looking for the best rates. For your return to Washington, D.C., you’ll find the best rates on Wednesdays and the most expensive ones on Thursdays. Visit our flight page for the latest deals!>/a>

Question 4

Which aircraft models fly most regularly from Washington, D.C. to Ulsan?

Accepted Answer

We unfortunately don’t have that data for this specific route.

Question 5

How does KAYAK find such low prices on flights from Washington, D.C. to Ulsan?

Accepted Answer

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington, D.C. to Ulsan. <a href='/flight-routes/Washington-Dulles-Intl-IAD/Ulsan-USN'>Visit our flight page for the latest deals!>/a>

Question 6

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington, D.C. to Ulsan?

Accepted Answer

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ulsan from Washington, D.C. is likely to change within 7 days, so travelers know whether to wait or book now. <a href='/flight-routes/Washington-Dulles-Intl-IAD/Ulsan-USN'>Visit our flight page for the latest deals!>/a>

Question 7

What is the Hacker Fare option on flights from Washington, D.C. to Ulsan?

Accepted Answer

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ulsan with an airline and back to Washington, D.C. with another airline. Booking your flights between Washington, D.C. and USN can sometimes prove cheaper using this method. <a href='/flight-routes/Washington-Dulles-Intl-IAD/Ulsan-USN'>Visit our flight page for the latest deals!>/a>

Question 8

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington, D.C. to Ulsan?

Accepted Answer

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ulsan from Washington, D.C. up to 3 days before/after your preferred dates. You can then pick the flights that suit you best. <a href='/flight-routes/Washington-Dulles-Intl-IAD/Ulsan-USN'>Visit our flight page for the latest deals!>/a>

Question 9

How often are flights from Washington, D.C. to Ulsan delayed?

Accepted Answer

Weekly flights between Washington, D.C. and Ulsan historically see delays in approximately 14% of cases, with the average delay over the past year being 153 minutes.

Question 10

Which airline has the best punctuality record on Washington, D.C. to Ulsan flights?

Accepted Answer

Based on our data, United Airlines have experienced the fewest delays on this route in the past 12 months, with only about 16% of their flights encountering any delays.

Question 11

What day of the week experiences the fewest flight delays on this route?

Accepted Answer

Statistically, Wednesday is the day of the week with the fewest delays on this flight route, while Sunday has typically experienced more delays than other days.

Question 12

What is the most punctual flight time for Washington, D.C. to Ulsan flights?

Accepted Answer

Typically, flights leaving at night tend to face fewer delays, whereas flights in the early afternoon have historically encountered delays more often.

Question 13

What are the most popular airlines flying to Ulsan?

Accepted Answer

The most popular airline among KAYAK users flying to Ulsan is Korean Air, followed by Air China.

IAD - USN

Find cheap flights from Washington, D.C. to Ulsan

KAYAK searches hundreds of travel sites at once for deals on flights to Ulsan

Everything you should know

Cheap Flights from Washington, D.C. to Ulsan (IAD-USN)

Recent round-trip flight deals from Washington, D.C. to Ulsan

Recent one-way flight deals from Washington, D.C. to Ulsan

Recent last minute flight deals from Washington, D.C. to Ulsan

KAYAK's insights & trends for Washington, D.C. to Ulsan flights

Get data-powered insights and trends into flights from Washington, D.C. to Ulsan to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Washington, D.C. to Ulsan?

When flying from Washington, D.C. to Ulsan, you should consider leaving on a Tuesday and avoid Mondays if you are looking for the best rates. For your return to Washington, D.C., you’ll find the best rates on Wednesdays and the most expensive ones on Thursdays.

How often are flights from Washington, D.C. to Ulsan delayed?

Weekly flights between Washington, D.C. and Ulsan historically see delays in approximately 14% of cases, with the average delay over the past year being 153 minutes.

What is the most punctual flight time for Washington, D.C. to Ulsan flights?

Typically, flights leaving at night tend to face fewer delays, whereas flights in the early afternoon have historically encountered delays more often.

What day of the week experiences the fewest flight delays on this route?

Statistically, Wednesday is the day of the week with the fewest delays on this flight route, while Sunday has typically experienced more delays than other days.

Which airline has the best punctuality record on Washington, D.C. to Ulsan flights?

Based on our data, United Airlines have experienced the fewest delays on this route in the past 12 months, with only about 16% of their flights encountering any delays.

Expert advice for your flight from Washington, D.C. to Ulsan

When to book flights from Washington, D.C. to Ulsan

FAQs for booking Washington, D.C. to Ulsan flights

Do I need a passport to fly between Washington, D.C. and Ulsan?

Yes

Which aircraft models fly most regularly from Washington, D.C. to Ulsan?

We unfortunately don’t have that data for this specific route.

How does KAYAK find such low prices on flights from Washington, D.C. to Ulsan?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington, D.C. to Ulsan.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington, D.C. to Ulsan?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ulsan from Washington, D.C. is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from Washington, D.C. to Ulsan?

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington, D.C. to Ulsan?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ulsan from Washington, D.C. up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight from Washington, D.C. to Ulsan

Information on your arrival and departure airports

Cabin class types available on flights to Ulsan

Complete your trip to Ulsan with a hotel stay or car rental

Find direct flights to and from Washington, D.C. and Ulsan

Flights to other popular destinations

Flights from domestic origins to Ulsan

Choose which airport to fly into in Washington, D.C.