Chicago → Abu Dhabi

ORD → AUH

Chicago → Akron

ORD → CAK

Chicago → Albany

ORD → ALB

Chicago → Albuquerque

ORD → ABQ

Chicago → Amman

ORD → AMM

Chicago → Amsterdam

ORD → AMS

Chicago → Anchorage

ORD → ANC

Chicago → Appelton

ORD → ATW

Chicago → Asheville

ORD → AVL

Chicago → Atlanta

ORD → ATL

Chicago → Atlantic City

ORD → ACY

Chicago → Austin

ORD → AUS

Chicago → Beijing

ORD → PEK

Chicago → Bentonville-Fayetteville

ORD → XNA

Chicago → Berlin

ORD → TXL

Chicago → Birmingham

ORD → BHM

Chicago → Bloomington

ORD → BMI

Chicago → Boise

ORD → BOI

Chicago → Boston

ORD → BOS

Chicago → Bozeman

ORD → BZN

Chicago → Brussels

ORD → BRU

Chicago → Buffalo

ORD → BUF

Chicago → Burlington IA

ORD → BRL

Chicago → Burlington

ORD → BTV

Chicago → Calgary

ORD → YYC

Chicago → Cancun

ORD → CUN

Chicago → Cedar Rapids IA

ORD → CID

Chicago → Champaign

ORD → CMI

Chicago → Charleston

ORD → CHS

Chicago → Charlotte

ORD → CLT

Chicago → Charlottesville

ORD → CHO

Chicago → Chattanooga

ORD → CHA

Chicago → Cincinnati

ORD → CVG

Chicago → Cleveland

ORD → CLE

Chicago → Colorado Springs

ORD → COS

Chicago → Columbia

ORD → CAE

Chicago → Columbus

ORD → CMH

Chicago → Copenhagen

ORD → CPH

Chicago → Dayton

ORD → DAY

Chicago → Decatur

ORD → DEC

Chicago → Delhi

ORD → DEL

Chicago → Denver

ORD → DEN

Chicago → Des Moines

ORD → DSM

Chicago → Detroit

ORD → DTW

Chicago → Doha

ORD → DOH

Chicago → Dublin

ORD → DUB

Chicago → Dubuque IA

ORD → DBQ

Chicago → Duesseldorf

ORD → DUS

Chicago → Duluth

ORD → DLH

Chicago → Eau Clarie

ORD → EAU

Chicago → Edmonton

ORD → YEG

Chicago → El Paso

ORD → ELP

Chicago → Elmira

ORD → ELM

Chicago → Evansville

ORD → EVV

Chicago → Fargo

ORD → FAR

Chicago → Flint

ORD → FNT

Chicago → Fort Lauderdale

ORD → FLL

Chicago → Fort Myers

ORD → RSW

Chicago → Fort Wayne

ORD → FWA

Chicago → Fort Worth

ORD → DFW

Chicago → Frankfurt

ORD → FRA

Chicago → Grand Cayman

ORD → GCM

Chicago → Grand Rapids

ORD → GRR

Chicago → Green Bay

ORD → GRB

Chicago → Greensboro

ORD → GSO

Chicago → Greenville

ORD → GSP

Chicago → Guadalajara

ORD → GDL

Chicago → Halifax International

ORD → YHZ

Chicago → Hancock

ORD → CMX

Chicago → Harrisburg

ORD → MDT

Chicago → Hartford

ORD → BDL

Chicago → Hong Kong

ORD → HKG

Chicago → Honolulu

ORD → HNL

Chicago → Houston

ORD → IAH

Chicago → Huntsville

ORD → HSV

Chicago → Indianapolis

ORD → IND

Chicago → Istanbul

ORD → IST

Chicago → Jackson

ORD → JAN

Chicago → Jacksonville

ORD → JAX

Chicago → Kahului

ORD → OGG

Chicago → Kalamazoo

ORD → AZO

Chicago → Kansas City

ORD → MCI

Chicago → Kitchener

ORD → YKF

Chicago → Knoxville

ORD → TYS

Chicago → La Crosse

ORD → LSE

Chicago → Lansing

ORD → LAN

Chicago → Las Vegas

ORD → LAS

Chicago → Lexington

ORD → LEX

Chicago → Lincoln

ORD → LNK

Chicago → Little Rock

ORD → LIT

Chicago → London

ORD → YXU

Chicago → London

ORD → LHR

Chicago → Los Angeles

ORD → LAX

Chicago → Louisville

ORD → SDF

Chicago → Madison

ORD → MSN

Chicago → Madrid

ORD → MAD

Chicago → Manchester

ORD → MAN

Chicago → Manchester

ORD → MHT

Chicago → Marquette

ORD → MQT

Chicago → Memphis

ORD → MEM

Chicago → Mexico City

ORD → MEX

Chicago → Miami

ORD → MIA

Chicago → Milwaukee

ORD → MKE

Chicago → Minneapolis

ORD → MSP

Chicago → Mobile

ORD → MOB

Chicago → Moline

ORD → MLI

Chicago → Montego Bay

ORD → MBJ

Chicago → Monterrey

ORD → MTY

Chicago → Montreal

ORD → YUL

Chicago → Muenchen

ORD → MUC

Chicago → Muskegon

ORD → MKG

Chicago → Myrtle Beach

ORD → MYR

Chicago → Nashville

ORD → BNA

Chicago → Nassau

ORD → NAS

Chicago → New Orleans

ORD → MSY

Chicago → New York

ORD → EWR

Chicago → Norfolk

ORD → ORF

Chicago → Oakland

ORD → OAK

Chicago → Oklahoma City

ORD → OKC

Chicago → Omaha

ORD → OMA

Chicago → Orlando

ORD → MCO

Chicago → Ottawa

ORD → YOW

Chicago → Paducah

ORD → PAH

Chicago → Palm Springs

ORD → PSP

Chicago → Panama City

ORD → PTY

Chicago → Paris

ORD → CDG

Chicago → Pensacola

ORD → PNS

Chicago → Peoria

ORD → PIA

Chicago → Philadelphia

ORD → PHL

Chicago → Phoenix

ORD → PHX

Chicago → Pittsburgh International Airport

ORD → PIT

Chicago → Portland International

ORD → PDX

Chicago → Portland

ORD → PWM

Chicago → Providence

ORD → PVD

Chicago → Puerto Vallarta

ORD → PVR

Chicago → Punta Cana

ORD → PUJ

Chicago → Quebec

ORD → YQB

Chicago → Raleigh

ORD → RDU

Chicago → Rapid City

ORD → RAP

Chicago → Regina

ORD → YQR

Chicago → Reno

ORD → RNO

Chicago → Richmond

ORD → RIC

Chicago → Roanoke

ORD → ROA

Chicago → Rochester

ORD → ROC

Chicago → Rome

ORD → FCO

Chicago → Sacramento

ORD → SMF

Chicago → Saginaw

ORD → MBS

Chicago → Salt Lake City

ORD → SLC

Chicago → San Antonio

ORD → SAT

Chicago → San Diego

ORD → SAN

Chicago → San Francisco

ORD → SFO

Chicago → San Jose Cabo

ORD → SJD

Chicago → San Jose

ORD → SJO

Chicago → San Jose

ORD → SJC

Chicago → San Juan

ORD → SJU

Chicago → San Salvador

ORD → SAL

Chicago → Santa Ana

ORD → SNA

Chicago → Sao Paulo

ORD → GRU

Chicago → Sarasota

ORD → SRQ

Chicago → Saskatoon

ORD → YXE

Chicago → Savannah

ORD → SAV

Chicago → Seattle

ORD → SEA

Chicago → Seoul

ORD → ICN

Chicago → Shanghai

ORD → PVG

Chicago → Sioux City IA

ORD → SUX

Chicago → Sioux Falls

ORD → FSD

Chicago → South Bend

ORD → SBN

Chicago → Springfield

ORD → SPI

Chicago → St. Cloud

ORD → STC

Chicago → St. Louis

ORD → STL

Chicago → St. Marteen

ORD → SXM

Chicago → St. Thomas

ORD → STT

Chicago → State College

ORD → SCE

Chicago → Stockholm

ORD → ARN

Chicago → Syracuse

ORD → SYR

Chicago → Tampa

ORD → TPA

Chicago → Tokyo

ORD → NRT

Chicago → Toledo

ORD → TOL

Chicago → Toronto

ORD → YYZ

Chicago → Traverse City

ORD → TVC

Chicago → Tucson

ORD → TUS

Chicago → Tulsa

ORD → TUL

Chicago → Vancouver

ORD → YVR

Chicago → Warsaw

ORD → WAW

Chicago → Washington DC

ORD → IAD

Chicago → Waterloo IA

ORD → ALO

Chicago → Wausau

ORD → CWA

Chicago → West Palm Beach

ORD → PBI

Chicago → White Plains

ORD → HPN

Chicago → Wichita

ORD → ICT

Chicago → Wien

ORD → VIE

Chicago → Wilkes Barre

ORD → AVP

Chicago → Winnipeg International

ORD → YWG

Chicago → Zurich

ORD → ZRH

Allentown → Atlanta

ABE → ATL

Allentown → Charlotte

ABE → CLT

Allentown → Chicago

ABE → ORD

Allentown → Detroit

ABE → DTW

Allentown → Myrtle Beach

ABE → MYR

Allentown → Philadelphia

ABE → PHL

Allentown → Punta Gorda

ABE → PGD

Allentown → Sanford

ABE → SFB

Allentown → St. Petersburg

ABE → PIE