Default HTG hotel image

Cheap Flights to Castlereagh from ₩739,300

View ₩739,300 flight on Tue, Oct 13, 2026Opens in a new window

Popular airlines to Castlereagh

  • easyJet

  • British Airways

  • Aer Lingus

  • KLM

  • Ryanair

  • American Airlines

  • Qatar Airways

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 40% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

How much is the cheapest flight to Castlereagh?

Prices were available within the past 7 days and start at ₩739,300 for one-way flights and ₩972,000 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Pegasus Airlines
Turkish Airlines
Turkish Airlines
Turkish Airlines
Virgin Atlantic
Delta
British Airways
KLM
KLM
China Southern Airlines

Trending flights to Castlereagh

These prices were available within the past 7 days. Prices quoted are per person, round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

KLM

Frequently asked questions

How do I find cheap flights to Castlereagh that have flexible change policies?
At Expedia, we've been channeling our inner acrobat to get you the most flexible fares in town. Just click on "No change fee" right under the "Flexible change policies" heading to find your dream flight to Castlereagh.
How can I find cheap tickets to Castlereagh?
You'll always nab a fabulous deal with Expedia, but our "flexible dates" feature makes it that much easier. Enter your preferred travel date, then click on the flexible dates box above to see a list of prices for nearby days. ₩972,000 was the lowest price for a flight to Castlereagh in the last seven days.
How much is a flight to Castlereagh?
In the last seven days, return flights to Castlereagh sold for as little as ₩972,000 and peaked at ₩1,852,400. For one-way trips departing from New York (JFK), the cheapest seat during this same period was only ₩739,300.
When is the cheapest time to fly to Castlereagh?
Jet off early on in the week to book a bargain airfare to Castlereagh. Tuesday is normally the most affordable day to depart, with Monday a close second. Saturday typically has the most expensive prices. This is because lots of people prefer to begin their vacation on a weekend.
How much is a plane ticket to Castlereagh?
Plane tickets ranged from ₩972,000 to ₩1,852,400 over the last seven days. When you're ready to book, we're ready to help you pick up the best price to Castlereagh.
What months are the cheapest to book a flight to Castlereagh?
The perfect month to book well-priced airfares to Castlereagh is February. Bear in mind that in the USA, the most expensive time to secure a ticket is during the month of December.

Book with confidence

About Castlereagh

Expedia offers flights to Castlereagh to meet every traveler's needs. Whatever your flight need - Expedia has the flight for you. So choose from flights to Castlereagh or destinations around the world and discover how easy it is to make your flight reservations on Expedia.
About Castlereagh
*Available to Expedia members.