Cheap Flights to County Mayo | Popular Routes to County Mayo from HK$1,136

View HK$1,136 flight on Sat, 9 May 2026Opens in a new window

Popular airlines to County Mayo

  • Ryanair

    Ryanair

  • British Airways

    British Airways

  • Aer Lingus

    Aer Lingus

  • Qatar Airways

    Qatar Airways

  • 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 County Mayo

Prices were available within the past 7 days and start at HK$1,136 for one-way flights and HK$2,552 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

British Airways
Tue, 7 Jul - Wed, 8 Jul
LHR
London
NOC
Knock
HK$2,552 Return, found 3 days ago
HK$2,552
Return
found 3 days ago
Select British Airways flight, departing Tue, 7 Jul from London to Knock, returning Wed, 8 Jul, priced at HK$2,552 found 3 days ago
Aer Lingus
Tue, 7 Jul - Wed, 8 Jul
LHR
London
NOC
Knock
HK$2,625 Return, found 3 days ago
HK$2,625
Return
found 3 days ago
Select Aer Lingus flight, departing Tue, 7 Jul from London to Knock, returning Wed, 8 Jul, priced at HK$2,625 found 3 days ago
British Airways
Fri, 3 Apr - Mon, 6 Apr
LHR
London
NOC
Knock
HK$2,641 Return, found 1 day ago
HK$2,641
Return
found 1 day ago
Select British Airways flight, departing Fri, 3 Apr from London to Knock, returning Mon, 6 Apr, priced at HK$2,641 found 1 day ago
Aer Lingus
Fri, 3 Apr - Mon, 6 Apr
LHR
London
NOC
Knock
HK$2,714 Return, found 1 day ago
HK$2,714
Return
found 1 day ago
Select Aer Lingus flight, departing Fri, 3 Apr from London to Knock, returning Mon, 6 Apr, priced at HK$2,714 found 1 day ago
Aer Lingus
Fri, 3 Apr - Mon, 6 Apr
LHR
London
NOC
Knock
HK$2,741 Return, found 1 day ago
HK$2,741
Return
found 1 day ago
Select Aer Lingus flight, departing Fri, 3 Apr from London to Knock, returning Mon, 6 Apr, priced at HK$2,741 found 1 day ago
British Airways
Tue, 7 Jul - Wed, 8 Jul
LHR
London
NOC
Knock
HK$2,750 Return, found 3 days ago
HK$2,750
Return
found 3 days ago
Select British Airways flight, departing Tue, 7 Jul from London to Knock, returning Wed, 8 Jul, priced at HK$2,750 found 3 days ago
Aer Lingus
Thu, 2 Jul - Fri, 3 Jul
LHR
London
NOC
Knock
HK$2,795 Return, found 3 days ago
HK$2,795
Return
found 3 days ago
Select Aer Lingus flight, departing Thu, 2 Jul from London to Knock, returning Fri, 3 Jul, priced at HK$2,795 found 3 days ago
British Airways
Thu, 2 Jul - Fri, 3 Jul
LHR
London
NOC
Knock
HK$2,822 Return, found 3 days ago
HK$2,822
Return
found 3 days ago
Select British Airways flight, departing Thu, 2 Jul from London to Knock, returning Fri, 3 Jul, priced at HK$2,822 found 3 days ago
British Airways
Fri, 3 Apr - Mon, 6 Apr
LHR
London
NOC
Knock
HK$2,838 Return, found 1 day ago
HK$2,838
Return
found 1 day ago
Select British Airways flight, departing Fri, 3 Apr from London to Knock, returning Mon, 6 Apr, priced at HK$2,838 found 1 day ago
British Airways
Tue, 7 Jul - Wed, 8 Jul
LHR
London
NOC
Knock
HK$2,941 Return, found 3 days ago
HK$2,941
Return
found 3 days ago
Select British Airways flight, departing Tue, 7 Jul from London to Knock, returning Wed, 8 Jul, priced at HK$2,941 found 3 days ago
British Airways
Thu, 2 Jul - Fri, 3 Jul
LHR
London
NOC
Knock
HK$3,030 Return, found 3 days ago
HK$3,030
Return
found 3 days ago
Select British Airways flight, departing Thu, 2 Jul from London to Knock, returning Fri, 3 Jul, priced at HK$3,030 found 3 days ago
British Airways
Fri, 3 Apr - Mon, 6 Apr
LHR
London
NOC
Knock
HK$3,130 Return, found 1 day ago
HK$3,130
Return
found 1 day ago
Select British Airways flight, departing Fri, 3 Apr from London to Knock, returning Mon, 6 Apr, priced at HK$3,130 found 1 day ago

About County Mayo

Expedia offers flights to County Mayo to meet every traveller's needs. Whatever your flight need - Expedia has the flight for you. So choose from flights to County Mayo 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 County Mayo that have flexible change policies?
We understand that plans can change from one minute to the next, so choosing a flexible fare with Expedia makes sense. Simply check the "No change fee" box below the "Flexible change policies" filter. Your low-priced, flexible flight to County Mayo is just a few clicks away.
How can I find cheap tickets to County Mayo?
In the last seven days, HK$2,552 was the best price for a flight to County Mayo. If you're eager to save even more, book in advance and be flexible with your travel dates. Search for your trip to County Mayo, then compare prices for similar time frames by clicking on our "flexible dates" link.
How much is a flight to County Mayo?
One-way flights leaving London (LHR) sold for as low as HK$1,136 in the last seven days. During this period, the price of a round-trip journey to County Mayo varied between HK$2,552 and HK$4,174. If you spot a deal, grab it quickly — these fares don't hang around.
When is the cheapest time to fly to County Mayo?
Jet off on a Tuesday to increase your chances of picking up the cheapest airfare to County Mayo. Mondays are usually the next most affordable day to depart. Saturday is normally the most expensive day to fly anywhere.
How much is a plane ticket to County Mayo?
In the last seven days, seats to County Mayo cost between HK$2,552 and HK$4,174. Prices depend on the departure time, airline, cabin class and how early the fare is booked.
What is the best time to go to County Mayo?
If you want to discover County Mayo's major city when it's buzzing, set out for Castlebar sometime in April, May and June. Like most destinations in the Northern Hemisphere, summer here begins June 20, bringing average temperatures of between 10ºC and 18ºC.
What months are the cheapest to book a flight to County Mayo?
To snap up cheap flights to County Mayo, book during February when the price of airfares are at their cheapest. When's the most expensive time? In the U.S, it's December.
*Available to Expedia members.