Alitalia MilleMiglia - Deciphering AZ fare bases code

I'm looking at a oneway fare from MIL to ROM, and just out of curiosity I'm trying to understand what the fare basis code means.

The fare is valid from Monday to Friday and has a 7 day advance purchase restriction.

The Fare basis code is LSXOWN6!

I know that L is the fare bucket, OW is probably oneway, N means nonrefundable and 6 is probably arbitrary. But what des SX stand for?
The fare valid on the weekends is LWEOWN6, so does SX somehow stand for “weekdays only”?

Thanks for any input!

See my comments in this post in the KVS thread (http://www.flyertalk.com/forum/18616683-post4855.html) about the general difficulty of interpreting fare-basis codes. Each airline uses their own system, so interpreting them is more art than science.

In your case, I would guess that:
WE = Weekend
SX = Saturdays, Sundays, excepted

(I think the use of 'X' to indicate 'excepted' or 'excluded' is fairly common in travel schedules. However, I think it can also be used to indicate 'Excursion' (eg: advance purchase, etc)).

However, as always, full information is contained in the fare rules, in any case.

Warning, huge quote :D

Fare rules & restrictions
Alitalia AZ LWEOWN6 ROM to MIL
General notes
ECONOMY CLASS PROMOTIONAL FARES . . . . . L
From/To ITALY FOR ONE WAY FARES
FOR ADULT
Day/Time restrictions
. PERMITTED SAT/SUN.
Flight restrictions
. THE FARE COMPONENT MUST INCLUDE TRAVEL FROM/TO MXP AIRPORT
. ON
. . . ONE OR MORE OF THE FOLLOWING
. . . . ANY AZ FLIGHT
. . . . ANY AP FLIGHT.
Advanced reservation/ticketing restrictions
. RESERVATIONS FOR ALL SECTORS AND TICKETING ARE REQUIRED AT
. LEAST 5 DAYS BEFORE DEPARTURE.
. . . . .NOTE -
. . . . . THE CARRIER GUARANTEES FARE AND RULE CONDITIONS IF
. . . . . THE TICKETING IS COMPLETED WITHIN 72 HOURS AFTER
. . . . . RESERVATIONS ARE MADE.
. . . . . -TKT MUST BE ISSUED WITHIN TICKET TIME LIMIT
. . . . . AS PER AUTOMATIC REMARK.
. . . . . WHEN TIME LIMIT IS WITHIN OR EXCEEDS ADVANCE
. . . . . PURCHASE RESTRICTION THE MOST RESTRICTIVE
. . . . . TICKETING DEADLINE .APPLIES.
Maximum stay requirements
. TRAVEL FROM LAST STOPOVER MUST COMMENCE NO LATER THAN 12
. MONTHS AFTER TICKET ISSUANCE.
. . . . .NOTE -
. . . . . -IF DESIRED RETURN FLIGHT CANNOT BE BOOKED AS DATE
. . . . . IS OUTSIDE SYSTEM BOOKING RANGE OF 337 DAYS
. . . . . IN ADVANCE AN ALTERNATIVE FLIGHT MUST BE BOOKED
. . . . . FOR TICKET ISSUANCE. ANY LATER REBOOKING TO
. . . . . DESIRED DATE-WITHIN MAXIMUM VALIDITY-IS ONLY
. . . . . POSSIBLE IF PERMITTED BY FARE NOTE AND REQUIRES
. . . . . REBOOKING FEE IF APPLICABLE.
Stopover restrictions
. NO STOPOVERS PERMITTED.
. . .NO STOPOVER OCCURS IF PASSENGER TAKES NEXT AVAILABLE
. . . FLIGHT WITHIN 8 HOURS.
Transfer restrictions
. UNLIMITED TRANSFERS PERMITTED ON THE PRICING UNIT
. . FARE BREAK AND EMBEDDED SURFACE SECTORS PERMITTED ON THE
. . .FARE COMPONENT.
. . . . .NOTE -
. . . . . AS PER ROUTING
Combinability
. .DOUBLE OPEN JAWS/CIRCLE TRIPS NOT PERMITTED.
. .END-ON-END NOT PERMITTED. SIDE TRIPS PERMITTED WITH NO
. .RESTRICTIONS.
. .ADD-ON CONSTRUCTION IS ADDRESSED IN MISCELLANEOUS
. .PROVISIONS - CATEGORY 23.
. OPEN JAWS/ROUND TRIPS
. . FARES MAY BE COMBINED ON A HALF ROUND TRIP BASIS
. . -TO FORM SINGLE OPEN JAWS.
. . .MILEAGE OF THE OPEN SEGMENT MUST BE EQUAL/LESS THAN
. . .MILEAGE OF THE LONGEST FLOWN FARE COMPONENT.
. . -TO FORM ROUND TRIPS
. .PROVIDED -
. . .COMBINATIONS ARE WITH ANY ECONOMY CLASS PROMOTIONAL/
. . .SUPER/SPECIAL INSTANT PURCHASE/INSTANT PURCHASE
. . .NONREFUNDABLE-TYPE FARES FOR CARRIER AZ/AP IN ANY RULE
. . . IN THIS TARIFF.
Sales restrictions
. TICKETS MAY NOT BE SOLD IN JAPAN/VENEZUELA/LEBANON/
. NIGERIA/SINGAPORE/ISRAEL/KUWAIT/HONG KONG SAR/INDONESIA/
. BRAZIL/CHINA/IRAN,ISLAMIC REPUBLIC OF/COSTA RICA/CANADA/
. KOREA, REPUBLIC OF/COLOMBIA/GHANA/GUATEMALA/ARGENTINA/
. TAIWAN, PROVINCE OF/PERU/MEXICO/CHILE/HONDURAS.
. . . . .NOTE -
. . . . . SALES RESTRICTION ALSO APPLIES TO ADVERTISING.
. AND - TICKETS MAY NOT BE SOLD IN NICARAGUA/DOMINICAN
. . . . REPUBLIC/PANAMA/EL SALVADOR/BOLIVIA/JORDAN/ECUADOR/
. . . . MOLDOVA,REPUBLIC OF/UZBEKISTAN/THE UNITED STATES/
. . . . KUWAIT/AUSTRALIA/ALGERIA/INDONESIA/ALBANIA/CANADA/
. . . . SENEGAL/BOLIVIA/SWITZERLAND.
. AND - TICKETS MAY NOT BE SOLD IN EGYPT/TUNISIA/ISRAEL/
. . . . UNITED ARAB EMIRATES/TURKEY/IRAN,ISLAMIC REPUBLIC
. . . . OF/LIBYAN ARAB JAMAHIRIYA/UKRAINE/JORDAN/MOROCCO/
. . . . SERBIA/LEBANON/RUSSIA/GEORGIA/SYRIAN ARAB REPUBLIC/
. . . . RUSSIA (EAST OF THE URALS).
. . . . .NOTE -
. . . . . SALES RESTRICTION ALSO APPLIES TO ADVERTISING.
. . . . . TKT MUST BE ISSUED ON AZ/AF/KL/DL TICKET STOCK
Penalties
. CHANGES
. . CHANGES NOT PERMITTED IN CASE OF NO-SHOW.
. . . . .NOTE -
. . . . . --------------------------------------------------
. . . . . IN THE EVENT OF NO-SHOW - WHEN CHANGES ARE
. . . . . REQUESTED AFTER DEPARTURE OF THE ORIGINALLY
. . . . . SCHEDULED FLIGHT - CHANGES ARE NOT PERMITTED
. . . . . AND THE CANCELLATION RULE SHALL APPLY.
. . . . . --------------------------------------------------
. . BEFORE DEPARTURE
. . . CHARGE EUR 120.00.
. . . . .NOTE -
. . . . . CHILD DISCOUNTS APPLY. INFANT CHARGE 5EUR.
. . . . . -------------------------------------------------
. . . . . WAIVED FOR ILLNESS OR DEATH OF PASSENGER OR
. . . . . FAMILY MEMBER.
. . . . . ILLNESS/DEATH WAIVER MUST BE SUBSTANTIATED BY
. . . . . A VALID HOSPITAL/DEATH CERTIFICATE.
. . . . . -------------------------------------------------
. . . . . BEFORE DEPARTURE OF THE OUTBOUND JOURNEY
. . . . . --------------------------------------------------
. . . . . A CHANGE IS A DATE / OR FLIGHT / OR ROUTING
. . . . . MODIFICATION.
. . . . . IN THE EVENT OF REROUTING THE FARE MUST BE
. . . . . RECALCULATED USING THE APPLICABLE FARE FOR THE
. . . . . NEW ORIGIN/DESTINATION OR THE NEW ROUTING.
. . . . . --------------------------------------------------
. . . . . NEW RESERVATION AND REISSUE/REVALIDATION MUST BE
. . . . . MADE AT THE SAME TIME. THE NEW BASE FARE AMOUNT
. . . . . MUST BE RECALCULATED USING FARES IN EFFECT ON
. . . . . THE PREVIOUS TICKETING DATE IF CHANGE DOES NOT
. . . . . OCCUR ON THE FIRST FARE COMPONENT OF THE JOURNEY.
. . . . . WHEN CHANGE OCCURS ON THE FIRST FARE COMPONENT
. . . . . OF THE JOURNEY ONLY OR ON THE FIRST FARE
. . . . . COMPONENT AND OTHER FARE COMPONENTS OF THE
. . . . . JOURNEY NEW FARE WILL BE RECALCULATED USING
. . . . . FARES IN EFFECT ON DATE OF REISSUE.
. . . . . FOLLOWING CONDITIONS APPLY
. . . . . - CHANGE CAN BE DONE IN SAME OR HIGHER BOOKING
. . . . . CLASS. THE FARE MAY BE LOWER/EQUAL OR HIGHER THAN
. . . . . PREVIOUS FARE. WHEN CHANGE RESULTS IN A LOWER
. . . . . FARE NO CREDIT/REFUND OF RESIDUAL AMOUNT WILL BE
. . . . . MADE. ALL RULE PROVISIONS OF THE NEWLY TICKETED
. . . . . FARE MUST BE MET.
. . . . . --------------------------------------------------
. . AFTER DEPARTURE
. . . CHANGES NOT PERMITTED.
. . . . .NOTE -
. . . . . --------------------------------------------------
. . . . . WAIVED FOR ILLNESS OR DEATH OF PASSENGER OR FAMILY
. . . . . .MEMBER.
. . . . . ILLNESS/DEATH WAIVER MUST BE SUBSTANTIATED BY
. . . . . A VALID HOSPITAL/DEATH CERTIFICATE.
. . . . . --------------------------------------------------
. . . . . AFTER DEPARTURE OF THE OUTBOUND JOURNEY
. . . . . --------------------------------------------------
. . . . . CHANGE RULES APPLY PER FARE COMPONENT.
. . . . . --------------------------------------------------
. CANCELLATIONS
. . ANY TIME
. . . TICKET IS NON-REFUNDABLE.
. . . . .NOTE -
. . . . . -------------------------------------------------
. . . . . WAIVED FOR ILLNESS OR DEATH OF PASSENGER OR
. . . . . FAMILY MEMBER.
. . . . . ILLNESS/DEATH WAIVER MUST BE SUBSTANTIATED BY
. . . . . A VALID HOSPITAL/DEATH CERTIFICATE.
. . . . . --------------------------------------------------
. . . . . FULL REFUND PERMITTED BEFORE DEPARTURE IN CASE
. . . . . OF REJECTION OF VISA. EMBASSY STATEMENT REQUIRED.
. . . . . --------------------------------------------------
. . . . . CANCELLATIONS RULES APPLY PER FARE COMPONENT.
. . . . . --------------------------------------------------
. . . . . TICKET IS NON REFUNDABLE WHEN PASSENGER CANCELS
. . . . . AFTER DEPARTURE OF THE ORIGINALLY SCHEDULED
. . . . . FLIGHT - NO SHOW
. . . . . --------------------------------------------------
. . . . . YQ - SURCHAGE AMOUNT FOLLOWS THE SAME
. . . . . CONDITIONS OF THE PENALTY PROVISIONS IN CASE
. . . . . OF CANCELLATION AND NO SHOW.
. . . . . --------------------------------------------------
Discounts
. FOR TICKETING ON/AFTER 10JUL 12
. . ACCOMPANIED CHILD 2-11 - CHARGE 100 PERCENT OF THE FARE.
. . . . . . . .TICKETING CODE - BASE FARE CODE PLUS CH.
. . . . . .MUST BE ACCOMPANIED ON ALL FLIGHTS.
. . . . .NOTE -
. . . . . DOB-DATE OF BIRTH- MUST BE SHOWN ON TICKET AND PNR
. . . . . FARE IS NOT AVAILABLE TO UNACCOMPANIED MINORS
. FOR TICKETING ON/AFTER 10JUL 12
. . INFANT UNDER 2 WITHOUT A SEAT - CHARGE EUR 20.00.
. . . . . . . .TICKETING CODE - BASE FARE CODE PLUS IN.
. . . . . .MUST BE ACCOMPANIED ON ALL FLIGHTS IN SAME
. . . . . . .COMPARTMENT
. OR - UNACCOMPANIED CHILD 5-13. ID REQUIRED - CHARGE 100
. . . . .PERCENT OF THE FARE PLUS EUR 40.00.
. . . . . . .TICKETING CODE - BASE FARE CODE PLUS UM.
. . . . .NOTE -
. . . . . SERVICE CHARGE FOR UNACCOMPANIED CHILD.
. . . . . UNACCOMPANIED MINORS UNDER 5 OF AGE WILL NOT BE
. . . . . ACCEPTED FOR CARRIAGE.
Application
ALITALIA PROMOTIONAL FARE
.APPLICATION
. .AREA
. . .THESE FARES APPLY
. . .WITHIN ITALY.
. .CLASS OF SERVICE
. . .THESE FARES APPLY FOR ECONOMY CLASS SERVICE.
. .TYPES OF TRANSPORTATION
. . .FARES GOVERNED BY THIS RULE CAN BE USED TO CREATE
. . .ONE-WAY JOURNEYS.
. .FARES ONLY APPLY IF PURCHASED BEFORE DEPARTURE.
.CAPACITY LIMITATIONS
. .SEATS ARE LIMITED
. .FARES WILL NOT NECESSARILY BE AVAILABLE ON ALL
. .FLIGHTS. .THE NUMBER OF SEATS THE CARRIER SHALL
. .MAKE AVAILABLE ON A GIVEN FLIGHT WILL BE
. .DETERMINED BY THE CARRIERS BEST JUDGEMENT.
.OTHER CONDITIONS
. .FULL AND SEQUENTIAL USE OF FLIGHT COUPONS-
. .THE TICKET/ OR ELECTRONIC TICKET / IS NOT VALID IF
. . THE FIRST COUPON HAS NOT BEEN USED AND WILL NOT
. .BE HONORED IF ALL THE COUPONS ARE NOT USED IN THE
. .SEQUENCE PROVIDED IN THE TICKET / OR ELECTRONIC
. .TICKET / .

Fare rules & restrictions
Alitalia AZ LSXOWN6 ROM to MIL
General notes
ECONOMY CLASS PROMOTIONAL FARES . . . . . L
From/To ITALY FOR ONE WAY FARES
FOR ADULT
Day/Time restrictions
. PERMITTED MON/TUE/WED/THU/FRI.
Flight restrictions
. THE FARE COMPONENT MUST INCLUDE TRAVEL FROM/TO MXP AIRPORT
. ON
. . . ONE OR MORE OF THE FOLLOWING
. . . . ANY AZ FLIGHT
. . . . ANY AP FLIGHT.
Advanced reservation/ticketing restrictions
. RESERVATIONS FOR ALL SECTORS AND TICKETING ARE REQUIRED AT
. LEAST 7 DAYS BEFORE DEPARTURE.
. . . . .NOTE -
. . . . . THE CARRIER GUARANTEES FARE AND RULE CONDITIONS IF
. . . . . THE TICKETING IS COMPLETED WITHIN 72 HOURS AFTER
. . . . . RESERVATIONS ARE MADE.
. . . . . -TKT MUST BE ISSUED WITHIN TICKET TIME LIMIT
. . . . . AS PER AUTOMATIC REMARK.
. . . . . WHEN TIME LIMIT IS WITHIN OR EXCEEDS ADVANCE
. . . . . PURCHASE RESTRICTION THE MOST RESTRICTIVE
. . . . . TICKETING DEADLINE .APPLIES.
Maximum stay requirements
. TRAVEL FROM LAST STOPOVER MUST COMMENCE NO LATER THAN 12
. MONTHS AFTER TICKET ISSUANCE.
. . . . .NOTE -
. . . . . -IF DESIRED RETURN FLIGHT CANNOT BE BOOKED AS DATE
. . . . . IS OUTSIDE SYSTEM BOOKING RANGE OF 337 DAYS
. . . . . IN ADVANCE AN ALTERNATIVE FLIGHT MUST BE BOOKED
. . . . . FOR TICKET ISSUANCE. ANY LATER REBOOKING TO
. . . . . DESIRED DATE-WITHIN MAXIMUM VALIDITY-IS ONLY
. . . . . POSSIBLE IF PERMITTED BY FARE NOTE AND REQUIRES
. . . . . REBOOKING FEE IF APPLICABLE.
Stopover restrictions
. NO STOPOVERS PERMITTED.
. . .NO STOPOVER OCCURS IF PASSENGER TAKES NEXT AVAILABLE
. . . FLIGHT WITHIN 8 HOURS.
Transfer restrictions
. UNLIMITED TRANSFERS PERMITTED ON THE PRICING UNIT
. . FARE BREAK AND EMBEDDED SURFACE SECTORS PERMITTED ON THE
. . .FARE COMPONENT.
. . . . .NOTE -
. . . . . AS PER ROUTING
Combinability
. .DOUBLE OPEN JAWS/CIRCLE TRIPS NOT PERMITTED.
. .END-ON-END NOT PERMITTED. SIDE TRIPS PERMITTED WITH NO
. .RESTRICTIONS.
. .ADD-ON CONSTRUCTION IS ADDRESSED IN MISCELLANEOUS
. .PROVISIONS - CATEGORY 23.
. OPEN JAWS/ROUND TRIPS
. . FARES MAY BE COMBINED ON A HALF ROUND TRIP BASIS
. . -TO FORM SINGLE OPEN JAWS.
. . .MILEAGE OF THE OPEN SEGMENT MUST BE EQUAL/LESS THAN
. . .MILEAGE OF THE LONGEST FLOWN FARE COMPONENT.
. . -TO FORM ROUND TRIPS
. .PROVIDED -
. . .COMBINATIONS ARE WITH ANY ECONOMY CLASS PROMOTIONAL/
. . .SUPER/SPECIAL INSTANT PURCHASE/INSTANT PURCHASE
. . .NONREFUNDABLE-TYPE FARES FOR CARRIER AZ/AP IN ANY RULE
. . . IN THIS TARIFF.
Sales restrictions
. TICKETS MAY NOT BE SOLD IN JAPAN/VENEZUELA/LEBANON/
. NIGERIA/SINGAPORE/ISRAEL/KUWAIT/HONG KONG SAR/INDONESIA/
. BRAZIL/CHINA/IRAN,ISLAMIC REPUBLIC OF/COSTA RICA/CANADA/
. KOREA, REPUBLIC OF/COLOMBIA/GHANA/GUATEMALA/ARGENTINA/
. TAIWAN, PROVINCE OF/PERU/MEXICO/CHILE/HONDURAS.
. . . . .NOTE -
. . . . . SALES RESTRICTION ALSO APPLIES TO ADVERTISING.
. AND - TICKETS MAY NOT BE SOLD IN NICARAGUA/DOMINICAN
. . . . REPUBLIC/PANAMA/EL SALVADOR/BOLIVIA/JORDAN/ECUADOR/
. . . . MOLDOVA,REPUBLIC OF/UZBEKISTAN/THE UNITED STATES/
. . . . KUWAIT/AUSTRALIA/ALGERIA/INDONESIA/ALBANIA/CANADA/
. . . . SENEGAL/BOLIVIA/SWITZERLAND.
. AND - TICKETS MAY NOT BE SOLD IN EGYPT/TUNISIA/ISRAEL/
. . . . UNITED ARAB EMIRATES/TURKEY/IRAN,ISLAMIC REPUBLIC
. . . . OF/LIBYAN ARAB JAMAHIRIYA/UKRAINE/JORDAN/MOROCCO/
. . . . SERBIA/LEBANON/RUSSIA/GEORGIA/SYRIAN ARAB REPUBLIC/
. . . . RUSSIA (EAST OF THE URALS).
. . . . .NOTE -
. . . . . SALES RESTRICTION ALSO APPLIES TO ADVERTISING.
. . . . . TKT MUST BE ISSUED ON AZ/AF/KL/DL TICKET STOCK
Penalties
. CHANGES
. . CHANGES NOT PERMITTED IN CASE OF NO-SHOW.
. . . . .NOTE -
. . . . . --------------------------------------------------
. . . . . IN THE EVENT OF NO-SHOW - WHEN CHANGES ARE
. . . . . REQUESTED AFTER DEPARTURE OF THE ORIGINALLY
. . . . . SCHEDULED FLIGHT - CHANGES ARE NOT PERMITTED
. . . . . AND THE CANCELLATION RULE SHALL APPLY.
. . . . . --------------------------------------------------
. . BEFORE DEPARTURE
. . . CHARGE EUR 120.00.
. . . . .NOTE -
. . . . . CHILD DISCOUNTS APPLY. INFANT CHARGE 5EUR.
. . . . . -------------------------------------------------
. . . . . WAIVED FOR ILLNESS OR DEATH OF PASSENGER OR
. . . . . FAMILY MEMBER.
. . . . . ILLNESS/DEATH WAIVER MUST BE SUBSTANTIATED BY
. . . . . A VALID HOSPITAL/DEATH CERTIFICATE.
. . . . . -------------------------------------------------
. . . . . BEFORE DEPARTURE OF THE OUTBOUND JOURNEY
. . . . . --------------------------------------------------
. . . . . A CHANGE IS A DATE / OR FLIGHT / OR ROUTING
. . . . . MODIFICATION.
. . . . . IN THE EVENT OF REROUTING THE FARE MUST BE
. . . . . RECALCULATED USING THE APPLICABLE FARE FOR THE
. . . . . NEW ORIGIN/DESTINATION OR THE NEW ROUTING.
. . . . . --------------------------------------------------
. . . . . NEW RESERVATION AND REISSUE/REVALIDATION MUST BE
. . . . . MADE AT THE SAME TIME. THE NEW BASE FARE AMOUNT
. . . . . MUST BE RECALCULATED USING FARES IN EFFECT ON
. . . . . THE PREVIOUS TICKETING DATE IF CHANGE DOES NOT
. . . . . OCCUR ON THE FIRST FARE COMPONENT OF THE JOURNEY.
. . . . . WHEN CHANGE OCCURS ON THE FIRST FARE COMPONENT
. . . . . OF THE JOURNEY ONLY OR ON THE FIRST FARE
. . . . . COMPONENT AND OTHER FARE COMPONENTS OF THE
. . . . . JOURNEY NEW FARE WILL BE RECALCULATED USING
. . . . . FARES IN EFFECT ON DATE OF REISSUE.
. . . . . FOLLOWING CONDITIONS APPLY
. . . . . - CHANGE CAN BE DONE IN SAME OR HIGHER BOOKING
. . . . . CLASS. THE FARE MAY BE LOWER/EQUAL OR HIGHER THAN
. . . . . PREVIOUS FARE. WHEN CHANGE RESULTS IN A LOWER
. . . . . FARE NO CREDIT/REFUND OF RESIDUAL AMOUNT WILL BE
. . . . . MADE. ALL RULE PROVISIONS OF THE NEWLY TICKETED
. . . . . FARE MUST BE MET.
. . . . . --------------------------------------------------
. . AFTER DEPARTURE
. . . CHANGES NOT PERMITTED.
. . . . .NOTE -
. . . . . --------------------------------------------------
. . . . . WAIVED FOR ILLNESS OR DEATH OF PASSENGER OR FAMILY
. . . . . .MEMBER.
. . . . . ILLNESS/DEATH WAIVER MUST BE SUBSTANTIATED BY
. . . . . A VALID HOSPITAL/DEATH CERTIFICATE.
. . . . . --------------------------------------------------
. . . . . AFTER DEPARTURE OF THE OUTBOUND JOURNEY
. . . . . --------------------------------------------------
. . . . . CHANGE RULES APPLY PER FARE COMPONENT.
. . . . . --------------------------------------------------
. CANCELLATIONS
. . ANY TIME
. . . TICKET IS NON-REFUNDABLE.
. . . . .NOTE -
. . . . . -------------------------------------------------
. . . . . WAIVED FOR ILLNESS OR DEATH OF PASSENGER OR
. . . . . FAMILY MEMBER.
. . . . . ILLNESS/DEATH WAIVER MUST BE SUBSTANTIATED BY
. . . . . A VALID HOSPITAL/DEATH CERTIFICATE.
. . . . . --------------------------------------------------
. . . . . FULL REFUND PERMITTED BEFORE DEPARTURE IN CASE
. . . . . OF REJECTION OF VISA. EMBASSY STATEMENT REQUIRED.
. . . . . --------------------------------------------------
. . . . . CANCELLATIONS RULES APPLY PER FARE COMPONENT.
. . . . . --------------------------------------------------
. . . . . TICKET IS NON REFUNDABLE WHEN PASSENGER CANCELS
. . . . . AFTER DEPARTURE OF THE ORIGINALLY SCHEDULED
. . . . . FLIGHT - NO SHOW
. . . . . --------------------------------------------------
. . . . . YQ - SURCHAGE AMOUNT FOLLOWS THE SAME
. . . . . CONDITIONS OF THE PENALTY PROVISIONS IN CASE
. . . . . OF CANCELLATION AND NO SHOW.
. . . . . --------------------------------------------------
Discounts
. FOR TICKETING ON/AFTER 10JUL 12
. . ACCOMPANIED CHILD 2-11 - CHARGE 100 PERCENT OF THE FARE.
. . . . . . . .TICKETING CODE - BASE FARE CODE PLUS CH.
. . . . . .MUST BE ACCOMPANIED ON ALL FLIGHTS.
. . . . .NOTE -
. . . . . DOB-DATE OF BIRTH- MUST BE SHOWN ON TICKET AND PNR
. . . . . FARE IS NOT AVAILABLE TO UNACCOMPANIED MINORS
. FOR TICKETING ON/AFTER 10JUL 12
. . INFANT UNDER 2 WITHOUT A SEAT - CHARGE EUR 20.00.
. . . . . . . .TICKETING CODE - BASE FARE CODE PLUS IN.
. . . . . .MUST BE ACCOMPANIED ON ALL FLIGHTS IN SAME
. . . . . . .COMPARTMENT
. OR - UNACCOMPANIED CHILD 5-13. ID REQUIRED - CHARGE 100
. . . . .PERCENT OF THE FARE PLUS EUR 40.00.
. . . . . . .TICKETING CODE - BASE FARE CODE PLUS UM.
. . . . .NOTE -
. . . . . SERVICE CHARGE FOR UNACCOMPANIED CHILD.
. . . . . UNACCOMPANIED MINORS UNDER 5 OF AGE WILL NOT BE
. . . . . ACCEPTED FOR CARRIAGE.
Application
ALITALIA PROMOTIONAL FARE
.APPLICATION
. .AREA
. . .THESE FARES APPLY
. . .WITHIN ITALY.
. .CLASS OF SERVICE
. . .THESE FARES APPLY FOR ECONOMY CLASS SERVICE.
. .TYPES OF TRANSPORTATION
. . .FARES GOVERNED BY THIS RULE CAN BE USED TO CREATE
. . .ONE-WAY JOURNEYS.
. .FARES ONLY APPLY IF PURCHASED BEFORE DEPARTURE.
.CAPACITY LIMITATIONS
. .SEATS ARE LIMITED
. .FARES WILL NOT NECESSARILY BE AVAILABLE ON ALL
. .FLIGHTS. .THE NUMBER OF SEATS THE CARRIER SHALL
. .MAKE AVAILABLE ON A GIVEN FLIGHT WILL BE
. .DETERMINED BY THE CARRIERS BEST JUDGEMENT.
.OTHER CONDITIONS
. .FULL AND SEQUENTIAL USE OF FLIGHT COUPONS-
. .THE TICKET/ OR ELECTRONIC TICKET / IS NOT VALID IF
. . THE FIRST COUPON HAS NOT BEEN USED AND WILL NOT
. .BE HONORED IF ALL THE COUPONS ARE NOT USED IN THE
. .SEQUENCE PROVIDED IN THE TICKET / OR ELECTRONIC
. .TICKET / .

So the difference is actually:

8 - . PERMITTED MON/TUE/WED/THU/FRI.
8 + . PERMITTED SAT/SUN.

- . LEAST 7 DAYS BEFORE DEPARTURE.
17 + . LEAST 5 DAYS BEFORE DEPARTURE.