Firms that identify as "budget" are in boldface.
This page doesn't list agencies (but see here).
Corrections/suggestions are welcome here.

Resources

Travel Industry Links

 Flight/Route Status
  UA 123, JFK to LHR, etc.

FlightAware (aircraft tracking)

flight delay maps [US]

Metasearch Engines:

Hopper's flight demand/pricing analysis

Canadian flight deals [CA]

SeatGuru | SeatExpert (aircraft seating)

telephone area code lookup/decoder

(2- & 3-letter) IATA/ICAO Airline Codes

(3-letter) IATA World Airport Codes

(2- & 3-letter) ISO Country Codes:

 [2] [3] country (click to sort)
ADANDAndorra
AEAREUnited Arab Emirates
AFAFGAfghanistan
AGATGAntigua & Barbuda
AIAIAAnguilla
ALALBAlbania
AMARMArmenia
AOAGOAngola
AQATAAntarctica
ARARGArgentina
ASASMAmerican Samoa
ATAUTAustria
AUAUSAustralia
AWABWAruba
AXALAÅland Islands
AZAZEAzerbaijan
BABIHBosnia & Herzegovina
BBBRBBarbados
BDBGDBangladesh
BEBELBelgium
BFBFABurkina Faso
BGBGRBulgaria
BHBHRBahrain
BIBDIBurundi
BJBENBenin
BLBLMBarthélemy
BMBMUBermuda
BNBRNBrunei Darussalam
BOBOLBolivia (Plurinational State of)
BQBESBonaire, Sint Eustatius, & Saba
BRBRABrazil
BSBHSBahamas
BTBTNBhutan
BVBVTBouvet Island
BWBWABotswana
BYBLRBelarus
BZBLZBelize
CACANCanada
CCCCKCocos (Keeling) Islands
CDCODCongo (Democratic Republic of the)
CFCAFCentral African Republic
CGCOGCongo
CHCHESwitzerland
CICIVIvory Coast (Cote D' Ivoire)
CKCOKCook Islands
CLCHLChile
CMCMRCameroon
CNCHNChina
COCOLColombia
CRCRICosta Rica
CUCUBCuba
CVCPVCape Verde
CXCXRChristmas Island
CYCYPCyprus
CZCZECzech Republic
DEDEUGermany
DJDJIDjibouti
DKDNKDenmark
DMDMADominica
DODOMDominican Republic
DZDZAAlgeria
ECECUEcuador
EEESTEstonia
EGEGYEgypt
EHESHWestern Sahara
ERERIEritrea
ESESPSpain
ETETHEthiopia
FIFINFinland
FJFJIFiji
FKFLKFalkland Islands (Malvinas)
FMFSMMicronesia (Federated States of)
FOFROFaroe Islands
FRFRAFrance
GAGABGabon
GBGBRUnited Kingdom of Great Britain & Northern Ireland
GDGRDGrenada
GEGEOGeorgia
GFGUFFrench Guiana
GGGGYGuernsey
GHGHAGhana
GIGIBGibraltar
GLGRLGreenland
GMGMBGambia
GNGINGuinea Bissau
GPGLPGuadeloupe
GQGNQEquatorial Guinea
GRGRCGreece
GSSGSSouth Georgia & The South Sandwich Islands
GTGTMGuatemala
GUGUMGuam
GWGNBGuinea-Bissau
GYGUYGuyana
HKHKGHong Kong
HMHMDHeard & McDonald Islands
HNHNDHonduras
HRHRVCroatia
HTHTIHaiti
HUHUNHungary
IDIDNIndonesia
IEIRLIreland
ILISRIsrael
IMIMNIsle of Man
ININDIndia
IOIOTBritish Indian Ocean Territory
IQIRQIraq
IRIRNIran (Islamic Republic of)
ISISLIceland
ITITAItaly
JEJEYJersey
JMJAMJamaica
JOJORJordan
JPJPNJapan
KEKENKenya
KGKGZKyrgyzstan
KHKHMCambodia
KIKIRKiribati
KMCOMComoros
KNKNASaint Kitts & Nevis
KPPRKKorea (Democratic People’s Republic of)
KRKORKorea (Republic of)
KWKWTKuwait
KYCYMCayman Islands
KZKAZKazakhstan
LALAOLao People’s Democratic Republic
LBLBNLebanon
LCLCASaint Lucia
LILIELiechtenstein
LKLKASri Lanka
LRLBRLiberia
LSLSOLesotho
LTLTULithuania
LULUXLuxembourg
LVLVALatvia
LYLBYLibya
MAMARMorocco
MCMCOMonaco
MDMDAMoldova (Republic of)
MEMNEMontenegro
MFMAFSaint Martin (French part)
MGMDGMadagascar
MHMHLMarshall Islands
MKMKDMacedonia (the former Yugoslav Republic of)
MLMLIMali
MMMMRMyanmar
MNMNGMongolia
MOMACMacau
MPMNPNorthern Mariana Islands
MQMTQMartinique (French)
MRMRTMauritania
MSMSRMontserrat
MTMLTMalta
MUMUSMauritius
MVMDVMaldives
MWMWIMalawi
MXMEXMexico
MYMYSMalaysia
MZMOZMozambique
NANAMNamibia
NCNCLNew Caledonia (French)
NENERNiger
NFNFKNorfolk Island
NGNGANigeria
NINICNicaragua
NLNLDNetherlands
NONORNorway
NPNPLNepal
NRNRUNauru
NUNIUNiue
NZNZLNew Zealand
OMOMNOman
PAPANPanama
PEPERPeru
PFPYFPolynesia (French)
PGPNGPapua New Guinea
PHPHLPhilippines
PKPAKPakistan
PLPOLPoland
PMSPMSaint Pierre & Miquelon
PNPCNPitcairn Island
PRPRIPuerto Rico
PSPSEPalestine, State of
PTPRTPortugal
PWPLWPalau
PYPRYParaguay
QAQATQatar
REREUReunion
ROROURomania
RSSRBSerbia
RURUSRussian Federation
RWRWARwanda
SASAUSaudi Arabia
SBSLBSolomon Islands
SCSYCSeychelles
SDSDNSudan
SESWESweden
SGSGPSingapore
SHSHNSaint Helena, Ascension, & Tristan da Cunha
SISVNSlovenia
SJSJMSvalbard & Jan Mayen
SKSVKSlovak Republic
SLSLESierra Leone
SMSMRSan Marino
SNSENSenegal
SOSOMSomalia
SRSURSuriname
STSTPSao Tome & Principe
SVSLVEl Salvador
SXSXMSint Maarten (Dutch part)
SYSYRSyrian Arab Republic
SZSWZSwaziland
TCTCATurks & Caicos Islands
TDTCDChad
TFATFFrench Southern Territories
TGTGOTogo
THTHAThailand
TJTJKTadjikistan
TKTKLTokelau
TLTLSTimor-Leste
TMTKMTurkmenistan
TNTUNTunisia
TOTONTonga
TRTURTurkey
TTTTOTrinidad & Tobago
TVTUVTuvalu
TWTWNTaiwan, Province of China
TZTZATanzania, United Republic of
UAUKRUkraine
UGUGAUganda
UMUMIUnited States Minor Outlying Islands
USUSAUnited States
UYURYUruguay
UZUZBUzbekistan
VAVATHoly See
VCVCTSaint Vincent & the Grenadines
VEVENVenezuela (Bolivarian Republic of)
VGVGBVirgin Islands (British)
VIVIRVirgin Islands (US)
VNVNMVietnam
VUVUTVanuatu
WFWLFWallis & Futuna
WSWSMSamoa
YEYEMYemen
YTMYTMayotte
ZAZAFSouth Africa
ZMZMBZambia
ZWZWEZimbabwe

 Airline Web SitesShare this page!

AB Airlines [UK] — Adria Airways [SI] — Aer Lingus [IE] — AeroflotAerolíneas ArgentinasAeroMéxicoAir ArabiaAir ArubaAir Asia [MY] — Air BerlinAir CanadaAir ChinaAir FranceAir GreenlandAir IndiaAir JamaicaAir MadagascarAir MauritiusAir Moldova [MD] — Air NamibiaAir New ZealandAir North [Yukon/Alaska/NWT] — Aircalin [NC] — AirTran Airways [US] — Alaska Airlines / Horizon AirAlitaliaAllegiantAmerica WestAmerican AirlinesANA (All Nippon Airways)Asiana AirlinesAustrian Airlines [AT] — AviancaBahamasairbmi (British Midland)bmi regional [UK] — British AirwaysBrussels Airlines [BE] — Caribbean Airlines [TT] — Cathay PacificCayman AirwaysChina AirlinesChina Eastern AirlinesChina Southern AirlinesContinental AirlinesCOPA (Compañía Panameña de Aviación)Corsair [FR]— Cyprus AirwaysCzech AirlinesDelta Air LinesDeutscheBA [DE] — easyJet [UK] — EgyptAirEl Al Israel AirlinesEmiratesEthiopian AirlinesEtihad AirwaysEurowings [DE] — EVA Air [TW] — Fastjet [TZ/UG/KE] — Fiji Airways [FJ] — FinnairFlyBE [UK] — Frontier AirlinesGaruda IndonesiaGermania Fluggesellschaft [DE] — Germanwings [DE] — Gol Transportes Aéreos [BR] (aka Varig) — Gulf Air [BH] — Hapag-Lloyd Express [DE] — Hawaiian AirlinesIberia – Lineas Aereas de EspanaIceland ExpressIcelandairJapan AirlinesJAT Yugoslav AirlinesJet2 [UK] — JetBlue Airways [US] — Jetstar Airways [AU] — KLM [NL] — Kulula [ZA] — Kuwait AirwaysKorean AirLAN AirlinesLauda Air [AT] — LOT Polish AirlinesLufthansaMalaysia AirlinesMalév Hungarian AirlinesMeridiana [IT] — Middle East Airlines / AirLibanMonarch Airlines [UK] — Nature Air [CR] — Norwegian [NO] — Olympic Air (GR) — Pegasus Airlines [TR] — Philippine AirlinesPIA (Pakistan International Airlines)Polynesian AirlinesPorter Airlines [CA] — QantasRoyal Air MarocRoyal JordanianRyanair [UK] — Saudia Arabian AirlinesScandinavian Airlines SystemScandjet [SE] — Singapore Airlines SkyWest [US/CA] — SN Brussels Airlines [BE] — Solomon Airlines [SB] — South African Express AirwaysSouthwest AirlinesSpanair [ES] — Spirit Airlines [US] — SriLankan Airlines [LK] — Swiss InternationalTAM Brazilian AirlinesTAP Air PortugalThai AirwaysTigerair [Asia] — Thomson Airways [UK] — Transavia [NL] — Turkish AirlinesTyrolean Airlines [AT] — Ukraine InternationalUnited AirlinesUS AirwaysVietnam AirlinesVirgin AmericaVirgin AtlanticVirgin AustraliaVueling AirlinesWestJet [CA] — WOW Air [IS] — Wizz Air [HU]

 Automobile Rental Web SitesShare this page!

Ace [US] — Advantage [US/MX] — Airport Car Rentals Ltd. [NZ] — AlamoArgus (IE broker) — Auto Europe (EU broker) — AvisBudgetClear Car Rental [IN] — Crown Holiday Cars [AU/UK/IE] — Dhana Car Rental [JM] — Discount Car And Truck Rentals Ltd. [CA/US/AU] — DollarDollaroExpress [IT] — easyCar [ES/FR/NL/UK] — Econo-Car Rentals [TT] — Economy Car Rental [KY] — EnterpriseEuropcarElegante [CR] — HertzKemwel (EU broker) — NationalPaylessPractical Car & Van Rental [UK] — Practical Rent-A-Car Systems [US/UK/IE/CA] — Renault Eurodrive [Europe] — Rent-A-WreckRent N'Go [RO] — Sixt [Europe] — Thrifty

 Other Transport Web SitesShare this page!

Die Bahn [EU rail] — East Japan Railway [JP] — megabus.com [UK] — U.K. Public Transportation [UK]

 Hotel Chain Web SitesShare this page!

Accor — Adam's Mark HotelsAkzent Hotels [DE] — Amari Hotels & Resorts [TH] — America's Best Inns & SuitesAmericInnAmerisuitesAnantara Hotels & Resorts [many] — APA Hotel [JP] — Apple Core HotelsAston Hotels & ResortsBanyan Tree Hotels & ResortsBarceló Hotels & Resorts [many] — Best WesternThe Big Sleep Hotel [UK] mdash; Budget Host InnsCABINN Hotels [DN] — CaesarsCamino Real Hotels & Resorts [MX] — Campanile [FR/UK/BE/NL/ES/PT/LU] — Canadian Pacific HotelsCandlewood SuitesCasa Andina [PE] — Centara Hotels & Resorts [TH +]— Choice Hotels (Ascend, Cambria Suites, Clarion, Comfort, EconoLodge, MainStay Suites, Quality Inn, Rodeway Inn, Sleep Inn, Suburban Extended Stay) — citizenM [many] — City Lodge Family of Hotels (Courtyard, City Lodge, Road Lodge, Town Lodge) [Africa] — Coastal Inns [CA] — Concorde Hotels [many] — Conrad HotelsCountry Hearth InnCountry Inns & SuitesCourtyard by MarriottCrowne Plaza Hotels & ResortsDan Hotels [IL] — Dedeman Hotels & Resorts [TY +] — Delta Hotels [CA] — Design Hotels [many] — Destination Hotels & Resorts [US/UK] — Domina Hotel GroupDoubletree HotelsThe Doyle Collection [IE/UK/US] — Drury HotelsDusit International (& dusitD2) [many] — easyHotel [UK] — Embassy Suites HotelsEtap Hotel [many] — Evergreen International Hotels [TW/JP/MY/TH/FR] — Extended Stay AmericaFairfield Inn by MarriottFairmont Hotels & ResortsFBD Hotel Group [IE] — Fiesta AmericanaHotel Formule 1 [many] — Fosshótel [IS] — Four Points HotelsFour Seasons Hotels & ResortsFurama Hotels International [AU/CN/US/SG] — Golden Tulip Hotels, Inns & Resorts [many] — Grand Heritage Hotels [many] — Gran Meliá [many] — Grecotel [GR] — GreenTree Inns [CN] — GuestHouse Inns, Hotels, & SuitesHampton InnsHawaiian Hotels & ResortsHilton Garden InnHilton HotelsHoliday InnHome Inns [CN] — Homestead Studio SuitesHomewood SuitesHotel Equatorial [CN/MY/MM/VN] — Hotel Sofitel [many] — Husa Hoteles [ES] — Hyatt Hotels & ResortsIberostar Hotels & Resorts [many] — ibis Hotels [many] — InterCityHotel [DE/AT/CH/IT/EG] — Inter-Continental Hotels & ResortsJameson InnJin Jiang Hotels [CN] — JJW Hotels & Resorts (Amarante Hotels, Median Hotels, Stars Hotels) [many] — Jurys Inn [UK +] — Kempinski Hotels & Resorts [US/CA] — Kimpton HotelsLa QuintaLe Meridien Hotels & Resorts [many] — Lemon Tree HotelsLoews Hotels [IN]— Luxury CollectionLonghouse Hospitality (Jameson Inn, Signature Inn, Crestwood Suites, Sun Suites, Lodge America) — Mandarin Oriental [many] — Marc Resorts HawaiiMarriott Hotels, Resorts, & Suites (Fairfield Inn) — Mercure Hotels [many] — Minotel Hotel Group [Europe] — Motel 6Motel One [DE +]— New Hotel [FR/BE] — New Otani HotelsNH Hoteles [many] — Nikko Hotels International [many] — Novotel Hotels [many] — Ohana Hotels & ResortsOmena Hotels [FI +] — Omni HotelsPosadas Group (Fiesta Americana, Fiesta Inn, One Hotels, Caesar Park, Caesar Business) [MX/BR/AR/CL] — Orient-Express HotelsOutrigger Hotels & ResortsPan Pacific Hotels & Resorts [many] — Park InnPark PlazaPeninsula Hotel GroupPestana Hotels & Resorts [many] — Premier Inn [UK/IE/AE] — Prince Hotels [JP/US/MY/SG/CA] — Protea Hotels [Africa] — Radisson Hotels WorldwideRed Roof InnsRegent International HotelsRegal Hotels International [HK/CN/CA] — Renaissance HotelsResidence InnRitz-CarltonRIU Hotels & Resorts [many] — Rocco Forte Hotels [Europe] — Room Mate Hotels [many] — Rotana Hotels [Middle East, Africa] — Rydges [AU +] — Safir Hotels & Resorts [EG/KW/LB/SY] — St. Regis Hotels & ResortsSandman Hotels & InnsScandic Hotels [DK/FI/NO/SE] — Shangri-La Hotels & ResortsSheraton Hotels & ResortsShilo InnsSix Continents HotelsSol Meliá Hotels [many] — Sonesta HotelsSorat Hotels [DE] — SpringHill SuitesSuburban Extended Stay HotelsSusse Chalet InnsSwissôtel [many] — Taj Hotels, Resorts, & Palaces [many] — Thistle Hotels [UK] — Thon Hotels [NO/SE/BE] — TownePlace SuitesTravelodge [UK] — Trump Hotel Collection [CA/US] — Tune Hotels [MY +] — UNA Hotels [IT] — U.S. SuitesVagabond InnsVan der Valk [NL/BE/DE/FR/ES] — W HotelsWestin Hotels & ResortsWyndham Hotels (Baymont Inn & Suites, Days Inn, Dream, Garden, Hawthorn Suites, Howard Johnson, Knights Inn, Microtel, Night, Ramada, Super 8, Travelodge, Tryp, Wingate)