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Cheap Flights from Harlingen to St Louis - HRL to STL

Did You Know?

United Airlines has 487 connecting flights between Harlingen, TX and St Louis.
You must make at least one connection to fly from Harlingen, TX to St Louis.

Cheap Domestic Flights from Harlingen - HRL

Flights
Airline
Lowest Price
Sun Country, United
$322
AirTran, Sun Country, United, Delta
$296
United, Delta, AirTran
$318
AirTran, Sun Country, Delta, United
$379
Sun Country, United
$370

Cheap Domestic Flights to St Louis - STL

Flights
Airline
Lowest Price
American, United, Alaska
$217
American, United
$279
American, United, Alaska
$217
American, United
$306
American, United
$280
American, United
$280
American, United
$318
United, American
$280
American, United
$392
American, AirTran, United
$359
United, American
$280
American, United
$280
AirTran, American, United
$341
American, United
$306
American, United
$306
American, United
$289
American, United
$468
American, United
$280

Cheap International Flights to St Louis - STL

Flights
Airline
Lowest Price
LAN, AeroMexico, American, Delta, United
$280
American, United, Delta, AeroMexico
$679
American, AeroMexico, Volaris, United, Delta, LAN
$664
LAN, United, AeroMexico, Delta, American
$683
American, United
$546
Aeromar, United, American
$490
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Cheap Flights from Harlingen to St Louis, from $325 Round trip from HRL to STL