United Airlines at IAD

Oranjestad

Queen Beatrix International Airport

Vienna

Vienna International Airport

Codeshare

Zaventem

Brussels Airport

São Paulo

São Paulo/Guarulhos–Governor André Franco Montoro International Airport

Montréal

Montreal / Pierre Elliott Trudeau International Airport

Codeshare

Ottawa

Ottawa Macdonald-Cartier International Airport

Codeshare

Toronto

Toronto Pearson International Airport

Codeshare

George Town

Owen Roberts International Airport

Beijing

Beijing Capital International Airport

Bogota

El Dorado International Airport

Codeshare

San José (Alajuela)

Juan Santamaría International Airport

Punta Cana

Punta Cana International Airport

Paris (Roissy-en-France, Val-d'Oise)

Charles de Gaulle International Airport

Frankfurt am Main

Frankfurt Airport

Munich

Munich Airport

Guatemala City

La Aurora International Airport

Dublin

Dublin Airport

Rome

Rome–Fiumicino Leonardo da Vinci International Airport

Montego Bay

Sangster International Airport

Narita

Narita International Airport

Kuwait City

Kuwait International Airport

Cancún

Cancún International Airport

Ciudad de México

Benito Juárez International Airport

Amsterdam

Amsterdam Airport Schiphol

Sint Maarten

Princess Juliana International Airport

Tocumen

Tocumen International Airport

San Juan

Luis Munoz Marin International Airport

Dakar

Léopold Sédar Senghor International Airport

Codeshare

Geneva

Geneva Cointrin International Airport

Zurich

Zürich Airport

Dubai

Dubai International Airport

London

London Heathrow Airport

Manchester, Greater Manchester

Manchester Airport

Albany

Albany International Airport

Codeshare

Altoona

Altoona Blair County Airport

Codeshare

Atlanta

Hartsfield Jackson Atlanta International Airport

Codeshare

Austin

Austin Bergstrom International Airport

Beaver

Raleigh County Memorial Airport

Codeshare

Binghamton

Greater Binghamton/Edwin A Link field

Codeshare

Boston

General Edward Lawrence Logan International Airport

Buffalo

Buffalo Niagara International Airport

Codeshare

Charleston

Yeager Airport

Codeshare

Charleston

Charleston International Airport

Codeshare

Charlotte

Charlotte Douglas International Airport

Codeshare

Charlottesville

Charlottesville Albemarle Airport

Codeshare

Chicago

Chicago O'Hare International Airport

Cincinnati / Covington

Cincinnati Northern Kentucky International Airport

Codeshare

Cleveland

Cleveland Hopkins International Airport

Colorado Springs

City of Colorado Springs Municipal Airport

Codeshare

Columbia

Columbia Metropolitan Airport

Codeshare

Columbus

John Glenn Columbus International Airport

Codeshare

Dallas-Fort Worth

Dallas Fort Worth International Airport

Dayton

James M. Cox Dayton International Airport

Codeshare

Denver

Denver International Airport

Detroit

Detroit Metropolitan Wayne County Airport

Codeshare

Fayetteville

Fayetteville Regional Airport - Grannis Field

Codeshare

Fort Lauderdale

Fort Lauderdale Hollywood International Airport

Grand Rapids

Gerald R. Ford International Airport

Codeshare

Greensboro

Piedmont Triad International Airport

Codeshare

Greenville/Greer/Spartanburg

Greenville-Spartanburg International Airport

Codeshare

Harrisburg

Harrisburg International Airport

Codeshare

Hartford

Bradley International Airport

Honolulu, Oahu

Daniel K. Inouye International Airport

Houston

George Bush Intercontinental Airport

Huntsville

Huntsville International Airport

Codeshare

Indianapolis

Indianapolis International Airport

Codeshare

Jacksonville

Jacksonville International Airport

Codeshare

Johnstown

John Murtha Johnstown Cambria County Airport

Codeshare

Kansas City

Kansas City International Airport

Codeshare

Knoxville/Maryville

McGhee Tyson Airport

Codeshare

Las Vegas

Harry Reid International Airport

Lewisburg

Greenbrier Valley Airport

Codeshare

Los Angeles

Los Angeles International Airport

Louisville

Louisville Muhammad Ali International Airport

Codeshare

Miami

Miami International Airport

Minneapolis

Minneapolis–Saint Paul International Airport / Wold–Chamberlain Field

Codeshare

Morgantown

Morgantown Municipal Airport Walter L. (Bill) Hart Field

Codeshare

Nashville

Nashville International Airport

Codeshare

Newark

Newark Liberty International Airport

Codeshare

New Orleans

Louis Armstrong New Orleans International Airport

New York

John F. Kennedy International Airport

Codeshare

New York

LaGuardia Airport

Codeshare

Norfolk

Norfolk International Airport

Codeshare

Oklahoma City

OKC Will Rogers World Airport

Codeshare

Omaha

Eppley Airfield

Codeshare

Orlando

Orlando International Airport

Philadelphia

Philadelphia International Airport

Codeshare

Phoenix

Phoenix Sky Harbor International Airport

Pittsburgh

Pittsburgh International Airport

Codeshare

Portland

Portland International Airport

Portland

Portland International Jetport

Codeshare

Providence/Warwick

Rhode Island T. F. Green International Airport

Codeshare

Raleigh/Durham

Raleigh-Durham International Airport

Richmond

Richmond International Airport

Codeshare

Roanoke

Roanoke–Blacksburg Regional Airport

Codeshare

Rochester

Frederick Douglass Greater Rochester International Airport

Codeshare

Sacramento

Sacramento International Airport

San Antonio

San Antonio International Airport

Codeshare

San Diego

San Diego International Airport

San Francisco

San Francisco International Airport

Savannah

Savannah Hilton Head International Airport

Codeshare

Seattle

Seattle–Tacoma International Airport

South Burlington

Burlington International Airport

Codeshare

State College

State College Regional Airport

Codeshare

St Louis

St. Louis Lambert International Airport

Codeshare

Syracuse

Syracuse Hancock International Airport

Codeshare

Tampa

Tampa International Airport

Tulsa

Tulsa International Airport

Codeshare

Weyers Cave

Shenandoah Valley Regional Airport

Codeshare

Charlotte Amalie

Cyril E. King Airport