
$111 Cheap Frontier Airlines flights St. Louis (STL) to Washington (IAD)
Prices were available within the past 7 days and start at $111 for one-way flights and $198 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Dec 25 - Thu, Jan 1
STL
St. Louis
IAD
Washington
$198 Roundtrip, found 1 day ago
$198
Roundtrip
found 1 day ago

Tue, Dec 30 - Thu, Jan 1
STL
St. Louis
IAD
Washington
$224 Roundtrip, found 1 day ago
$224
Roundtrip
found 1 day ago
Origin airport | Lambert-St. Louis Intl. |
|---|---|
Destination airport | Washington Dulles Intl. |
Airlines serving | American Airlines, Delta, Frontier Airlines, United |
Popular airline | United |
Distance | 1111 km |
Average flight time | 3 hours 10 mins |
Most Popular Frontier Airlines Routes from St. Louis
Most Popular Frontier Airlines Routes from Washington
- Fort Lauderdale to Hartford (FLL - BDL)
- Boston to Atlanta (BOS - ATL)
- Denver to Chicago (DEN - ORD)
- Dallas to Cincinnati (DFW - CVG)
- Baltimore to Las Vegas (BWI - LAS)
- Seattle to Phoenix (SEA - PHX)
- Philadelphia to Las Vegas (PHL - LAS)
- New York to San Francisco (LGA - SFO)
- Cincinnati to Atlanta (CVG - ATL)
- Atlanta to Fort Lauderdale (ATL - FLL)
Popular Domestic Routes in Washington Dulles Intl.
- Seattle to Phoenix (SEA - PHX)
- Philadelphia to Orlando (PHL - MCO)
- Denver to Los Angeles (DEN - LAX)
- Denver to Los Angeles (DEN - LAX)
- Cincinnati to Atlanta (CVG - ATL)
- San Francisco to Las Vegas (SFO - LAS)
- Fort Lauderdale to Hartford (FLL - BDL)
- Boston to Atlanta (BOS - ATL)
- Boston to Atlanta (BOS - ATL)
- Newark Liberty Intl. Airport to Atlanta (EWR - ATL)