Cheap United flights St. Louis (STL) to Allentown (ABE)

• Ontario to Washington (ONT - DCA)
• Madison to Portland (MSN - PDX)
• Los Angeles to Johannesburg (LAX - JNB)
• Newark Liberty Intl. Airport to Cancun (EWR - CUN)
• Greensboro to Los Angeles (GSO - LAX)
• Atlanta to Newark Liberty Intl. Airport (ATL - EWR)
• Detroit to Phoenix (DTW - PHX)
• Denver to Charlotte (DEN - CLT)
• Newark Liberty Intl. Airport to New Orleans (EWR - MSY)
• Newark Liberty Intl. Airport to Cancun (EWR - CUN)

Popular Domestic Routes in Lehigh Valley Intl.

• Los Angeles to Johannesburg (LAX - JNB)
• Detroit to Phoenix (DTW - PHX)
• Pensacola to Seattle (PNS - SEA)
• Kansas City to Atlanta (MCI - ATL)
• Grand Junction to Tampa (GJT - TPA)
• Chicago to Little Rock (ORD - LIT)
• Austin to Ontario (AUS - ONT)
• Panama City to Charlotte (ECP - CLT)
• Atlanta to Las Vegas (ATL - LAS)
• Las Vegas to Tampa (LAS - TPA)

Airlines Operating

• Delta
• American Airlines
• United
• Frontier Airlines
• Spirit Airlines
• Alaska Airlines
• Hawaiian Airlines
• Air Canada
• Aeromexico

• Flights from St. Louis
• Flights from St. Charles
• Flights from Maryland Heights
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• Flights from Alton
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• Flights from Collinsville