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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
$346
AirTran, Sun Country, United, Delta
$313
United, Delta, AirTran
$381
AirTran, Sun Country, Delta, United
$441
Sun Country, United
$373

Cheap Domestic Flights to St Louis - STL

Flights
Airline
Lowest Price
American, United, Alaska
$221
American, United
$293
American, United, Alaska
$221
American, United
$322
American, United
$294
American, United
$294
American, United
$300
United, American
$294
American, United
$451
American, AirTran, United
$315
United, American
$294
American, United
$294
AirTran, American, United
$362
American, United
$322
American, United
$322
American, United
$292
American, United
$500
American, United
$294

Cheap International Flights to St Louis - STL

Flights
Airline
Lowest Price
LAN, AeroMexico, American, Delta, United
$281
American, United, Delta, AeroMexico
$682
American, AeroMexico, Volaris, United, Delta, LAN
$448
LAN, United, AeroMexico, Delta, American
$684
American, United
$558
Aeromar, United, American
$329
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Cheap Flights from Harlingen to St Louis, from $375 Round trip from HRL to STL