Cheap Flights to County Mayo | Popular Routes to County Mayo from HK$1,164

View HK$1,164 flight on Mon, 27 Jul 2026Opens in a new window

Popular airlines to County Mayo

  • British Airways

  • Ryanair

  • Aer Lingus

  • Qatar Airways

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

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

  • 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$1,164 for one-way flights and HK$2,134 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

British Airways
Sat, 25 Jul - Wed, 29 Jul
LHR
London
NOC
Knock
HK$2,134 Return, found 15 hours ago
HK$2,134
Return
found 15 hours ago
Select British Airways flight, departing Sat, 25 Jul from London to Knock, returning Wed, 29 Jul, priced at HK$2,134 found 15 hours ago
Aer Lingus
Sat, 25 Jul - Wed, 29 Jul
LHR
London
NOC
Knock
HK$2,221 Return, found 15 hours ago
HK$2,221
Return
found 15 hours ago
Select Aer Lingus flight, departing Sat, 25 Jul from London to Knock, returning Wed, 29 Jul, priced at HK$2,221 found 15 hours ago
Aer Lingus
Sat, 25 Jul - Wed, 29 Jul
LHR
London
NOC
Knock
HK$2,254 Return, found 15 hours ago
HK$2,254
Return
found 15 hours ago
Select Aer Lingus flight, departing Sat, 25 Jul from London to Knock, returning Wed, 29 Jul, priced at HK$2,254 found 15 hours ago
Aer Lingus
Sat, 25 Jul - Wed, 29 Jul
LHR
London
NOC
Knock
HK$2,255 Return, found 15 hours ago
HK$2,255
Return
found 15 hours ago
Select Aer Lingus flight, departing Sat, 25 Jul from London to Knock, returning Wed, 29 Jul, priced at HK$2,255 found 15 hours ago
Aer Lingus
Sat, 27 Jun - Mon, 29 Jun
LHR
London
NOC
Knock
HK$2,284 Return, found 4 days ago
HK$2,284
Return
found 4 days ago
Select Aer Lingus flight, departing Sat, 27 Jun from London to Knock, returning Mon, 29 Jun, priced at HK$2,284 found 4 days ago
British Airways
Sat, 27 Jun - Mon, 29 Jun
LHR
London
NOC
Knock
HK$2,306 Return, found 4 days ago
HK$2,306
Return
found 4 days ago
Select British Airways flight, departing Sat, 27 Jun from London to Knock, returning Mon, 29 Jun, priced at HK$2,306 found 4 days ago
British Airways
Fri, 24 Jul - Mon, 27 Jul
LHR
London
NOC
Knock
HK$2,316 Return, found 6 days ago
HK$2,316
Return
found 6 days ago
Select British Airways flight, departing Fri, 24 Jul from London to Knock, returning Mon, 27 Jul, priced at HK$2,316 found 6 days ago
Aer Lingus
Sat, 27 Jun - Mon, 29 Jun
LHR
London
NOC
Knock
HK$2,326 Return, found 4 days ago
HK$2,326
Return
found 4 days ago
Select Aer Lingus flight, departing Sat, 27 Jun from London to Knock, returning Mon, 29 Jun, priced at HK$2,326 found 4 days ago
Aer Lingus
Sat, 27 Jun - Mon, 29 Jun
LHR
London
NOC
Knock
HK$2,327 Return, found 4 days ago
HK$2,327
Return
found 4 days ago
Select Aer Lingus flight, departing Sat, 27 Jun from London to Knock, returning Mon, 29 Jun, priced at HK$2,327 found 4 days ago
British Airways
Sat, 25 Jul - Wed, 29 Jul
LHR
London
NOC
Knock
HK$2,332 Return, found 15 hours ago
HK$2,332
Return
found 15 hours ago
Select British Airways flight, departing Sat, 25 Jul from London to Knock, returning Wed, 29 Jul, priced at HK$2,332 found 15 hours ago

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$2,134 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$1,164 in the last seven days. During this period, the price of a round-trip journey to County Mayo varied between HK$2,134 and HK$2,332. 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$2,134 and HK$2,332. 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.

Book with confidence

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.
About County Mayo
*Available to Expedia members.