Cheap Flights to Castlereagh | Popular Routes to Castlereagh from HK$271

View HK$271 flight on Fri, 23 Jan 2026Opens in a new window

Popular airlines to Castlereagh

  • British Airways

    British Airways

  • easyJet

    easyJet

  • Aer Lingus

    Aer Lingus

  • Ryanair

    Ryanair

  • KLM

    KLM

  • American Airlines

    American Airlines

  • Virgin Atlantic

    Virgin Atlantic

  • notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
  • deals illustration

    Book smarter

    Save up to 35% on select hotels after you book a flight*
  • trophy illustration

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap round-trip flights to Castlereagh

Prices were available within the past 7 days and start at HK$271 for one-way flights and HK$479 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

easyJet
Tue, 6 Jan - Thu, 8 Jan
BHX
Birmingham
BFS
Belfast
HK$479 Return, found 1 day ago
HK$479
Return
found 1 day ago
Select easyJet flight, departing Tue, 6 Jan from Birmingham to Belfast, returning Thu, 8 Jan, priced at HK$479 found 1 day ago
easyJet
Tue, 6 Jan - Thu, 8 Jan
BHX
Birmingham
BFS
Belfast
HK$500 Return, found 1 day ago
HK$500
Return
found 1 day ago
Select easyJet flight, departing Tue, 6 Jan from Birmingham to Belfast, returning Thu, 8 Jan, priced at HK$500 found 1 day ago
easyJet
Mon, 19 Jan - Mon, 26 Jan
LTN
London
BFS
Belfast
HK$510 Return, found 21 hours ago
HK$510
Return
found 21 hours ago
Select easyJet flight, departing Mon, 19 Jan from London to Belfast, returning Mon, 26 Jan, priced at HK$510 found 21 hours ago
easyJet
Mon, 19 Jan - Mon, 26 Jan
LTN
London
BHD
Belfast
HK$510 Return, found 21 hours ago
HK$510
Return
found 21 hours ago
Select easyJet flight, departing Mon, 19 Jan from London to Belfast, returning Mon, 26 Jan, priced at HK$510 found 21 hours ago
easyJet
Thu, 15 Jan - Sun, 18 Jan
EDI
Edinburgh
BFS
Belfast
HK$521 Return, found 4 days ago
HK$521
Return
found 4 days ago
Select easyJet flight, departing Thu, 15 Jan from Edinburgh to Belfast, returning Sun, 18 Jan, priced at HK$521 found 4 days ago
easyJet
Fri, 9 Jan - Mon, 12 Jan
LTN
London
BFS
Belfast
HK$540 Return, found 6 days ago
HK$540
Return
found 6 days ago
Select easyJet flight, departing Fri, 9 Jan from London to Belfast, returning Mon, 12 Jan, priced at HK$540 found 6 days ago
British Airways
Tue, 24 Feb - Sun, 1 Mar
LHR
London
BHD
Belfast
HK$1,231 Return, found 3 days ago
HK$1,231
Return
found 3 days ago
Select British Airways flight, departing Tue, 24 Feb from London to Belfast, returning Sun, 1 Mar, priced at HK$1,231 found 3 days ago
Aer Lingus
Thu, 15 Jan - Sun, 18 Jan
EDI
Edinburgh
BHD
Belfast
HK$1,650 Return, found 4 days ago
HK$1,650
Return
found 4 days ago
Select Aer Lingus flight, departing Thu, 15 Jan from Edinburgh to Belfast, returning Sun, 18 Jan, priced at HK$1,650 found 4 days ago
Etihad Airways
Thu, 15 Jan - Sun, 18 Jan
HKG
Hong Kong SAR
BHD
Belfast
HK$6,974 Return, found 4 days ago
HK$6,974
Return
found 4 days ago
Select Etihad Airways flight, departing Thu, 15 Jan from Hong Kong SAR to Belfast, returning Sun, 18 Jan, priced at HK$6,974 found 4 days ago
Finnair
Thu, 1 Jan - Wed, 7 Jan
HEL
Helsinki
BHD
Belfast
HK$7,486 Return, found 21 hours ago
HK$7,486
Return
found 21 hours ago
Select Finnair flight, departing Thu, 1 Jan from Helsinki to Belfast, returning Wed, 7 Jan, priced at HK$7,486 found 21 hours ago

About Castlereagh

Expedia offers flights to Castlereagh to meet every traveller'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. HK$479 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 HK$479 and peaked at HK$7,486. For one-way trips departing from Edinburgh (EDI), the cheapest seat during this same period was only HK$271.
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 HK$479 to HK$7,486 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, return, for the period specified. Prices and availability are subject to change. Additional terms apply.

Etihad Airways
Thu, 15 Jan - Sun, 18 Jan
HKG
Hong Kong SAR
BHD
Belfast
HK$6,974 Return, found 4 days ago
HK$6,974
Return
found 4 days ago
Select Etihad Airways flight, departing Thu, 15 Jan from Hong Kong SAR to Belfast, returning Sun, 18 Jan, priced at HK$6,974 found 4 days ago
*Available to Expedia members.