SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549

                                    FORM 6-K


                        Report of Foreign Private Issuer


                       Pursuant to Rule 13a-16 or 15d-16
                     of the Securities Exchange Act of 1934


                         For the month of March 2005

                              RYANAIR HOLDINGS PLC
                (Translation of registrant's name into English)

                     c/o Ryanair Ltd Corporate Head Office
                                 Dublin Airport
                             County Dublin Ireland
                    (Address of principal executive offices)

 
Indicate by check mark whether the registrant files or will file annual 
reports under cover Form 20-F or Form 40-F.

                         Form 20-F..X.. Form 40-F.....


Indicate by check mark whether the registrant by furnishing the information 
contained in this Form is also thereby furnishing the information to the 
Commission pursuant to Rule 12g3-2(b) under the Securities Exchange 
Act of 1934.

                               Yes ..... No ..X..


If "Yes" is marked, indicate below the file number assigned to the registrant 
in connection with Rule 12g3-2(b): 82- ________ 





    

Ryanair Holdings Plc

16 March 2005

Re: Holding in Company


A Letter from The Capital Group Companies, Inc dated 08 March 2005 to Ryanair
Holdings Plc, received by Ryanair Holdings Plc on the 16 March 2005.


Re: Section 67 Notification


           Enclosed is a Section 67 Notification dated 07 March 2005.

Please note that one or more of the affiliates of The Capital Group Companies,
Inc. have made notifications to your company pursuant to Section 67 in the past.
For a description of our organisation, please visit our Web site at
www.capgroup.com.



For the purposes of this notification an outstanding share balance of
754,316,084 shares was used to calculate the percentages of holdings of the
relevant share capital which determine the notifiable interest.  We believe this
outstanding share balance is current; however, if this number is not accurate,
please contact us as soon as possible so we may make the necessary revisions to
this notification.




Gina Martinez

Compliance Associate

The Capital Group Companies, Inc.



A Letter from The Capital Group Companies, Inc. to Ryanair Holdings Plc dated 07
March 2005.





                       Notification of Interests

                      (Section 67 Companies Act 1990)



This Notice is given by The Capital Group Companies, Inc. on behalf of its
affiliates, including Capital Research and Management Company, Capital
International,Inc., Capital International S.A.,Capital Guardian Trust Company,
and Captial International Limited, pursuant to Section 67 of the Companies Act,
1990.



The interest in the relevant share capital indicated below arises by virtue of
holdings attributed to the Companies (see Schedule A).  These holdings form part
of funds managed on behalf of investment clients by the Companies.



Share capital to which this relates:
Ordinary Shares (including ADRs)

Number of shares in which the Companies have a notifiable interest:
67,838,817 Ordinary Shares (including ADRs)

Name(s) of registered holder(s):
See Schedule B



As of 07 March 2005



Ryanair Holdings Plc




                                                             
                                     Number of Shares     Percent of Outstanding
The Capital Group Companies, Inc. (" 67,838,817               8.993%
CG") holdings
Holdings by CG Management Companies
and Funds:
Capital Guardian Trust Company       9,820,000                1.302%
Capital International Limited        25,162,874               3.336%
Capital International S.A.           4,040,275                0.536%
Capital International, Inc.          2,106,188                0.279%
Capital Research and Management      26,709,480               3.541%
Company




Schedule A


                 Schedule of holdings in Ryanair Holdings, Plc

                              As of 07 March 2005



                         CAPITAL GUARDIAN TRUST COMPANY


Registered Name                                         Local Shares

Cede & Co                                               7,510,000
55 Water Street
New York, NY 10006

Allied Irish Bank plc                                   2,310,000
Stock Exchange and Trust Services
Bank Centre
P.O. Box 512
Ballsbridge
Dublin 4

Total                                                   9,820,000




                            Schedule B Page 1 of 7


                         CAPITAL INTERNATIONAL LIMITED


Registered Name                                         Local Shares

State Street Nominees Limited                           71,100
Canary Wharf
27th Floor, 1 Canada Square
London E14 5AF

Bank of New York Nominees                               2,100,550
Bank of New York
3 Birchin Lane
London EC3V 9BY

Northern Trust                                          1,045,549
C/O NorTrust Nominees Limited
155 Bishopsgate
London EC2M 3XS

Chase Nominees Limited                                  51,600
Woolgate House
Coleman Street
London
EC2P 2HD

Cede & Co                                               2,021,484
55 Water Street
New York
NY 10006

Citibank London                                         211,348
11 Old Jewry
London EC2R 8D8
UK

Nortrust Nominees                                       402,6 34
155 Bishopsgate
London EC2M 3XS
United Kingdom

Bank of Ireland                                         5,638,910
Intl Financial Services Centre
1 Harbourmaster Place
Dublin 1

Allied Irish Bank Plc                                   3,125,851
Stock Exchange and Trust Services
Bank Centre, P.O. Box 512
Ballsbridge, Dublin 4

State Street London Ltd                                 896,697
12-13 Nicholas Ln
London EC4N 78N

Mellon Bank                                             114,000
Global Custody Division
1 Mellon Bank Centre Room 1310
Pittsbourgh PA 15252-0001

MSS Nominees Limited                                    316,000
Midland Bank Plc
Mariner House, Pepys
London EC3N 4DA

State Street Bank & Trust Co                            809,686

Deutsche Bank AG                                        116,628
23 Great Winchester Street
London EC2P 2AX
United Kingdom

HSBC Bank Plc                                           34,700
Securities Services Mariner House
Pepys Street
London EC3N 4DA

Alibank Nominees Limited                                2,521,693
Allied Irish Bank Plc
Stock Exchange and Trust Services
Bank Centre, P.O. Box 512
Ballsbridge, Dublin 4

Citibank N.A. (Ireland)                                 1,569,000
ISFC House
Custom House Quay
Dublin 1

Bank of Ireland Nominees Limited                        2,105,566
Bank of Ireland
Intl Financial Services Centre
1 Harbourmaster Place

Citibank N.A. (Dublin)                                  57,500
IFSC House
Custom House Quay
Dublin 1

AIB Custodial Nominees Limited                          400,000

Clydesale Bank Plc                                      706,546

JP Morgan Chase Bank                                    854,832

Total                                                   25,161,874



                             Schedule B Page 3 of 6

                           Capital International S.A

Registered Name                                         Local Shares

Cede & Co                                               3,761,635
55 Water Street
New York NY 10006

Bank of Ireland                                         11,400
Intl Financial Services Centre
1 Harbourmaster Place
Dublin 1

Bank of Ireland Nominees Limited                        226,740
Bank of Ireland
Intl Financial Services Centre
1 Harbourmaster Place

Citibank N.A (Dublin)                                   40,500
IFSC House
Custom House Quay
Dublin 1

Total                                                   4,040,275





                                   Schedule B

                                  Page 4 of 6

                           Capital International, Inc


Registered Name                                         Local Shares

Cede & Co                                               1,697,500
55 Water Street
New York, NY 10006

NorTrust Nominees Limited                               22,200
155 Bishopsgate
London EC2M 3XS
United Kingdom

Bank of Ireland                                         116,200
Intl Financial Services Centre
1 Harbourmaster Place
Dublin 1

State Street Australia Limited                          30,500
Australia

Alibank Nominees Limited                                225,688
Allied Irish Bank
Stock Exchange and Trust Servcies
Bank Centre P.O. Box 512
Dublin
Ballsbridge

AIB Custodial Nominees Limited                          14,100

Total                                                   2,106,188







                                   Schedule B

                                  Page 5 of 6


                   Capital Research and Management Company


Registered Name                                         Local Shares

Cede & Co                                               26,709,480
55 Water Street
New York, NY 10006

Total                                                   26,709,480




                                   Schedule B

                                  Page 6 of 6


                               SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the 
Registrant has duly caused this report to be signed on its behalf by the 
undersigned, hereunto duly authorized.

                                    RYANAIR HOLDINGS PLC

 
Date:  16 March 2005

                                    By:___/s/ Howard Millar____

                                    H Millar
                                    Company Secretary & Finance Director