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- A Fare
- *A (Star Alliance)
- AA
- AA (American Airlines)
- AAdvantage
- ABA (Able Body Assistant)
- AC (Air Canada)
- ACARS
- Accor Live Limitless (ALL)
- ACDS
- AerClub
- Aeroméxico Rewards
- AF (Air France)
- Affinity Card
- AFT
- *AG (Star Alliance Gold)
- AGC
- Aircraft Swap
- Airline Alliance
- Airport Code
- Airport Lounge
- Aisle Lice
- Aisle Seat
- Allways Rewards
- ALPA
- ALT
- AM (Aeroméxico)
- Amex
- Amex Gold
- Amex Platinum
- ANA Mileage Club
- AOSSP
- APD (Air Passenger Duty)
- App-o-Rama (AoR)
- APPRX
- APR
- APT
- APU
- ARCC
- Armrest Treaty
- ARNK / ARUNK
- ARVL
- AS (Alaska Airlines)
- *AS (Star Alliance Silver)
- Asia Miles
- Aspirational Redemption
- ATC
- ATL (Atlanta Hartsfield-Jackson)
- AU (Authorized User)
- AV (Avianca)
- AVBL
- Avios
- AVOD
- Award Chart
- Award Dump
- Award Space
- Award Ticket
- Award Travel
- Award Wallet
- AY (Finnair)
- B Fare
- B6 (JetBlue Airways)
- BA (British Airways)
- Backtracking
- Bank Bonus
- Basic Economy (BE)
- Battlefield Upgrade
- BCE
- BCP
- Be Your Own Data Point
- Belt Bumping
- Belt Grinding
- Best Available Rate (BAR)
- Best Western Rewards
- Bill Pay
- BIN
- Bin Anxiety
- Bin Blocking
- BIS (Butt in Seat)
- Black Card
- Blackout Dates
- Blogged to Death
- BLTN
- Bluebird
- BoB (Buy on Board)
- BOGO
- Bonus Category
- BOS (Boston Logan)
- BRDG
- Breakage
- BRFG
- British Airways Club
- British Airways Executive Club (BAEC)
- Bucket
- Bump
- Burn
- Business Class
- Bust-Out
- BYODP
- C Fare
- Cabin Downgrade
- Call Center Roulette
- Capacity Controls
- CardMatch
- Carrier-Imposed Surcharge (YQ)
- Cash Advance
- Cash Back (CB)
- Category Cap
- CATS
- CC
- CCR
- CCS
- CDG (Paris Charles de Gaulle)
- CEDR
- CFF
- CFU
- Channel 9
- Chase Ultimate Rewards (UR)
- Choice Privileges
- Churn
- Churner
- CI (China Airlines)
- CIC
- CIP
- CIU
- CKIN
- Clawback
- Closed-Loop Gift Card
- CLT (Charlotte Douglas)
- Club Europe (CE)
- Club Suite
- Club World
- Co-branded Card
- Codeshare
- COMP
- Companion Pass (CP)
- Companion Voucher
- Complimentary Premier Upgrade (CPU)
- Connection
- Convenience Fee
- Couch Run
- Coupon Book
- Courtesy Stow
- CPM / CPP
- Credit Bureau (CB)
- Credit Cycling
- Credit Limit (CL)
- Credit Limit Increase (CLI)
- Credit Pull
- Credit Report (CR)
- Crew Rest
- Crew Timeout
- CRO
- CSCP
- CSP
- CSR (Chase Sapphire Reserve)
- CSR (Customer Service Representative)
- CT
- CX (Cathay Pacific)
- D Fare
- DCA
- Dead Deal
- Deadhead (DH)
- Deal Alert
- Debit Gift Card
- Delta SkyPesos
- DEN (Denver International)
- Devaluation
- DFW (Dallas/Fort Worth)
- Direct Flight
- Diversion
- DL (Delta Air Lines)
- DNF
- DOH (Doha Hamad)
- DOM
- Double Dip
- Double Open-Jaw
- DP (Data Point)
- DPTR
- DSPCH
- DSTN
- DTCH
- DUB (Dublin)
- DYKWIA
- Dynamic Pain Pricing
- Dynamic Pricing
- E Fare
- Early Recliner
- Earn and Burn
- EAS
- eFAOM
- EI (Aer Lingus)
- EK (Emirates)
- Elite Bonus
- Elite Status
- ELT
- Emirates Skywards
- Equipment Change
- ETC
- ETOPS
- EU261 / UK261
- EWR (Newark Liberty)
- Excursionist Perk
- Expert Mode
- EY (Etihad Airways)
- F Fare
- F9 (Frontier Airlines)
- Fare Basis Code
- Fare Bucket
- Fare Class
- FCO (Rome Fiumicino)
- FCS
- FHR
- Fifth Freedom Flight
- FIM
- Finnair Plus
- First Class (F)
- First Wing
- FJ (Fiji Airways)
- FLT
- FLUB
- FlyerTalk (FT)
- Flying Blue
- FNC
- Forex / FX Fee
- Four Seasons (FS)
- FRA (Frankfurt)
- Free Spirit
- Frontier Miles
- Fuel Dump
- Fuel Surcharge (YQ)
- Full Fare
- Future Flight Credit (FFC)
- G Fare
- G4 (Allegiant Air)
- Gate Agent (GA)
- Gate Hovering
- Gate Lice
- Gift Card Churning
- Gift Card (GC)
- Global Entry (GE)
- Global Services (GS)
- Gold Guest List (GGL)
- GRND
- Grocery Play
- Ground Delay Program (GDP)
- Ground Stop
- GUF / GUF1 / GUF2
- H Fare
- HA (Hawaiian Airlines)
- Hard Pull (HP)
- HawaiianMiles
- HBO
- HHA
- Hilton Free Night Reward
- Hilton Honors (HH)
- HKG (Hong Kong International)
- HLDG
- Hold Time
- Hotel Elite Status
- Household Account
- Hub
- Hub-and-Spoke
- HUCA Fail
- HUCA / HUACA
- I Fare
- IAD (Washington Dulles)
- IATA
- IB (Iberia)
- IDB
- IFE
- IHG
- IHG One Rewards
- IN Fare
- INFT
- INOP
- Instant Upgrade Fare
- Interline Agreement
- Inventory Management (IM)
- INVOL
- IOR
- IRROPS
- ISM
- J Class
- J Fare
- J Lounge
- JetBlue TrueBlue
- JFK (New York JFK)
- JL (Japan Airlines)
- JN Fare
- Junk Fee
- K Fare
- KE (Korean Air)
- Keeper Card
- KL (KLM)
- Known Traveler Number (KTN)
- KrisFlyer
- KYC Trigger
- L Fare
- LA (LATAM)
- LAS (Las Vegas Harry Reid)
- LAX (Los Angeles International)
- Layover
- LGA (New York LaGuardia)
- LH (Lufthansa)
- LHR (London Heathrow)
- LHRC
- LifeMiles
- Lifetime Status
- Liquidation
- Liquidation Chain
- Load Factor
- Lounge Access
- LTD
- LX (SWISS)
- M Fare
- MAD (Madrid Barajas)
- Mandarin Oriental (MO)
- Manufactured Spend (MS)
- Married Segment Logic
- Marriott Bonvoy (MB)
- Mattress Run
- MCT
- MEL
- Merchant Coding
- Metal
- MGM Rewards
- MH (Malaysia Airlines)
- MIA (Miami International)
- Mileage Millionaire
- Mileage Plan
- Mileage Police
- Mileage Run (MR)
- MileagePlus (MP)
- Miles & More
- Minimum Payment
- Minimum Spend Requirement (MSR)
- Misconnect
- Mistake Fare
- MLW
- MMB
- Money Order (MO)
- MR (Membership Rewards)
- MRD
- MS-Friendly
- MTOW
- MU (China Eastern)
- MUC (Munich)
- MX
- N Fare
- Narrowbody (NB)
- Nerd Bird
- Nerf
- NH (All Nippon Airways)
- NK (Spirit Airlines)
- NLL
- No Soup For You
- NOC
- Non-Rev
- Nonstop Flight
- NRSA
- O Fare
- O&D
- Office Supply Play
- OHB
- OLCI
- ON Fare
- One-Way (OW)
- oneworld (OW)
- Op-Up
- Open Jaw
- Open-Loop Gift Card
- ORD (Chicago O’Hare)
- Organic Spend
- Original Routing Credit (ORC)
- Orphan Points
- Orphaned Certificate
- OTA
- Overhead Bin (OHB)
- OW (Overwater)
- P Fare
- P1 / P2
- Park Hyatt (PH)
- PAX
- Payment Processor
- PDB
- PED
- PF
- PHX (Phoenix Sky Harbor)
- PIC
- PIN-Enabled Gift Card
- Plastiq
- PlusPoints (PP)
- PM
- PNF
- PNR
- Points Pooling
- Points Rich, Cash Poor
- Pop-Up Jail (PUJ)
- Portal Stacking
- POUG
- PPBM
- PQF
- PQP
- PreCheck (TSA PreCheck)
- Premium Economy (PE)
- Premium Plus (PP)
- Priority Pass (PP)
- Product Change (PC)
- Protected Connection
- Pull (Hard/Soft)
- Purser
- Q Fare
- Qantas Frequent Flyer
- Qatar Privilege Club
- QF (Qantas)
- QR (Qatar Airways)
- QSuite
- R Fare
- Rack Rate
- Rapid Rewards
- RAT
- Reaccommodation
- Reddit Churners
- Redeemable Miles
- Redemption
- Rep
- Reselling
- Retention Offer
- RFS
- Ritz-Carlton (RC)
- Rookie Mistake
- Round Trip (RT)
- RTW
- Run the Numbers
- S Fare
- Saver Award
- Screenshot or It Didn’t Happen
- SDC
- SEA (Seattle-Tacoma)
- Seat Squatter
- Security Shuffle
- Segment
- Serve
- SFO (San Francisco International)
- Shadow Devaluation
- SHARES
- Shopping Portal
- Shutdown
- Simon Mall Play
- SIN (Singapore Changi)
- SkyMiles
- SkyTeam (ST)
- Sock Drawer
- Soft Pull (SP)
- Southwest Companion Pass
- Speculative Transfer
- Spend Bonus
- Split Tender
- Spoonfeeding
- SQ (Singapore Airlines)
- Statement Credit (SC)
- Status Match
- Status Run
- Stopover
- STW
- SUB
- Suite Night Award (SNA)
- Suite Upgrade Award (SUA)
- Sweet Spot
- SYD (Sydney Kingsford Smith)
- T Fare
- T/O
- TATL
- Tech Stop
- TFC
- The Hobby
- Ticket Stock
- Tier Point (TP)
- TK (Turkish Airlines)
- Touch Grass Fare
- TP (TAP Air Portugal)
- TPAC
- TPE (Taipei Taoyuan)
- Transfer Bonus
- Transfer Partner
- Travel Hacking
- Travel Waiver (TW)
- Travelator Drift
- TrueBlue
- U Fare
- U2 (easyJet)
- UA (United Airlines)
- uID
- Unaccompanied Minor (UM / UNMR)
- Unicorn Redemption
- United Club (UC)
- United Express (UAX)
- Upgrade for Cash (UFC)
- Upgrade Inventory
- Upgrade List
- UR Portal
- V Fare
- VA (Virgin Australia)
- Vanilla Reload
- VDB
- Velocity
- Virgin Atlantic Flying Club
- Visa Gift Card (VGC)
- VS (Virgin Atlantic)
- W Fare
- Waitlist
- Waldorf Astoria (WA)
- Walked
- Walkway Split Failure
- W&B
- Weather (WX)
- Wet Lease
- Widebody (WB)
- WN (Southwest Airlines)
- World of Hyatt (WoH)
- World Traveller Plus (WTP)
- World Traveller (WT)
- WS (WestJet)
- WY (Oman Air)
- Wyndham Rewards
- X Fare
- XN Fare
- Y Fare
- YMMV
- YN Fare
- Your Call May Vary
- YYZ (Toronto Pearson)
- Z Fare
- ZN Fare
- Zone Jumping