Cheap Flights to Castlereagh from ₩45,662

View ₩45,662 flight on Sun, Mar 22, 2026Opens in a new window

Popular airlines to Castlereagh

  • British Airways

  • easyJet

  • Aer Lingus

  • KLM

  • Ryanair

  • American Airlines

  • Virgin Atlantic

  • 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 ₩45,662 for one-way flights and ₩127,373 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

easyJet
Fri, Feb 20 - Mon, Feb 23
STN
London
BFS
Belfast
₩127,373 Roundtrip, found 1 day ago
₩127,373
Roundtrip
found 1 day ago
Select easyJet flight, departing Fri, Feb 20 from London to Belfast, returning Mon, Feb 23, priced at ₩127,373 found 1 day ago
easyJet
Fri, Feb 20 - Mon, Feb 23
LGW
London
BFS
Belfast
₩129,364 Roundtrip, found 1 day ago
₩129,364
Roundtrip
found 1 day ago
Select easyJet flight, departing Fri, Feb 20 from London to Belfast, returning Mon, Feb 23, priced at ₩129,364 found 1 day ago
easyJet
Fri, Feb 20 - Mon, Feb 23
LGW
London
BFS
Belfast
₩131,355 Roundtrip, found 1 day ago
₩131,355
Roundtrip
found 1 day ago
Select easyJet flight, departing Fri, Feb 20 from London to Belfast, returning Mon, Feb 23, priced at ₩131,355 found 1 day ago
easyJet
Fri, Feb 20 - Mon, Feb 23
LTN
London
BFS
Belfast
₩131,355 Roundtrip, found 1 day ago
₩131,355
Roundtrip
found 1 day ago
Select easyJet flight, departing Fri, Feb 20 from London to Belfast, returning Mon, Feb 23, priced at ₩131,355 found 1 day ago
easyJet
Fri, Feb 20 - Mon, Feb 23
STN
London
BFS
Belfast
₩137,327 Roundtrip, found 1 day ago
₩137,327
Roundtrip
found 1 day ago
Select easyJet flight, departing Fri, Feb 20 from London to Belfast, returning Mon, Feb 23, priced at ₩137,327 found 1 day ago
easyJet
Fri, Feb 20 - Mon, Feb 23
LTN
London
BFS
Belfast
₩141,309 Roundtrip, found 1 day ago
₩141,309
Roundtrip
found 1 day ago
Select easyJet flight, departing Fri, Feb 20 from London to Belfast, returning Mon, Feb 23, priced at ₩141,309 found 1 day ago
easyJet
Fri, Feb 20 - Mon, Feb 23
LTN
London
BFS
Belfast
₩143,300 Roundtrip, found 1 day ago
₩143,300
Roundtrip
found 1 day ago
Select easyJet flight, departing Fri, Feb 20 from London to Belfast, returning Mon, Feb 23, priced at ₩143,300 found 1 day ago
easyJet
Fri, Feb 20 - Mon, Feb 23
LTN
London
BFS
Belfast
₩144,295 Roundtrip, found 1 day ago
₩144,295
Roundtrip
found 1 day ago
Select easyJet flight, departing Fri, Feb 20 from London to Belfast, returning Mon, Feb 23, priced at ₩144,295 found 1 day ago
KLM
Fri, Mar 6 - Mon, Mar 9
CDG
Paris
BHD
Belfast
₩449,100 Roundtrip, found 1 day ago
₩449,100
Roundtrip
found 1 day ago
Select KLM flight, departing Fri, Mar 6 from Paris to Belfast, returning Mon, Mar 9, priced at ₩449,100 found 1 day ago
British Airways
Fri, Mar 6 - Mon, Mar 9
CDG
Paris
BHD
Belfast
₩476,200 Roundtrip, found 1 day ago
₩476,200
Roundtrip
found 1 day ago
Select British Airways flight, departing Fri, Mar 6 from Paris to Belfast, returning Mon, Mar 9, priced at ₩476,200 found 1 day ago

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.

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. ₩127,373 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 ₩127,373 and peaked at ₩1,318,600. For one-way trips departing from London (LTN), the cheapest seat during this same period was only ₩45,662.
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 ₩127,373 to ₩1,318,600 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.

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
Sun, Dec 6 - Thu, Dec 31
ICN
Seoul
BHD
Belfast
₩1,318,600 Roundtrip, found 2 days ago
₩1,318,600
Roundtrip
found 2 days ago
Select KLM flight, departing Sun, Dec 6 from Seoul to Belfast, returning Thu, Dec 31, priced at ₩1,318,600 found 2 days ago
*Available to Expedia members.