Flights from St. Louis (STL) to Washington, D.C. (BWI)

Plan your journey from St. Louis to Washington, D.C. with the latest deals, travel tips, and flight information.

St. Louis

STL

→

Washington, D.C.

BWI

From

09/21/2025 – 09/28/2025

Travelers & Class

Include hotels in search

Cheap flight deals from St. Louis to Washington, D.C.

Average price start from:

$292

St. Louis to Washington, D.C.

One-way from:

$65

St. Louis to Washington, D.C.

Cheapest day:

Thursday

Cheapest flights to Washington, D.C. on this day

Cheapest In:

November

Cheapest prices for flights to Washington, D.C. this month

Find flight deals from St. Louis to Washington, D.C.

Cheapest flights from St. Louis to Washington, D.C.

ONEWAY FLIGHTS

LAST MINUTE

CHEAP FLIGHTS

BEST FLIGHTS

Explore the cheapest oneway flights from St. Louis to Washington, D.C. spotted daily.

STL

STL - St. Louis • 2025-09-21 • 09:00

Unknown

60 min

BWI

Baltimore

$65

Non-stop • 60 min

STL

STL - St. Louis • 2025-09-21 • 09:00

Unknown

60 min

BWI

Baltimore

$81

Non-stop • 60 min

STL

STL - St. Louis • 2025-09-21 • 09:00

Unknown

60 min

DCA

Washington Reagan

$95

Non-stop • 60 min

STL

STL - St. Louis • 2025-09-21 • 09:00

Unknown

60 min

IAD

Washington Dulles

$95

Non-stop • 60 min

STL

STL - St. Louis • 2025-09-21 • 09:00

Unknown

60 min

BWI

Baltimore

$99

Non-stop • 60 min

STL

STL - St. Louis • 2025-09-21 • 09:00

Unknown

60 min

BWI

Baltimore

$104

Non-stop • 60 min

STL

STL - St. Louis • 2025-09-21 • 09:00

Unknown

60 min

DCA

Washington Reagan

$109

Non-stop • 60 min

STL

STL - St. Louis • 2025-09-21 • 09:00

Unknown

60 min

IAD

Washington Dulles

$109

Non-stop • 60 min

STL

STL - St. Louis • 2025-09-21 • 09:00

Unknown

60 min

DCA

Washington Reagan

$119

Non-stop • 60 min

STL

STL - St. Louis • 2025-09-21 • 09:00

Unknown

60 min

IAD

Washington Dulles

$119

Non-stop • 60 min

STL

STL - St. Louis • 2025-09-21 • 09:00

Unknown

60 min

DCA

Washington Reagan

$124

Non-stop • 60 min

STL

STL - St. Louis • 2025-09-21 • 09:00

Unknown

60 min

DCA

Washington Reagan

$125

Non-stop • 60 min

Price Trends & Analysis

Weekly Price Trends

Track weekly price fluctuations for flights from St. Louis to Washington, D.C.. Prices typically vary by day of the week, with mid-week flights often offering better deals.

Monthly Price Trends

Monitor monthly price patterns to identify the best time to book your flight from St. Louis to Washington, D.C.. Seasonal variations and holiday periods significantly impact pricing.

Weather & Climate Information

Temperature

Plan your visit to Washington, D.C. with current temperature data. Washington, D.C. experiences varied weather throughout the year, with temperatures ranging from mild to warm depending on the season.

Rainfall

Stay prepared for your trip to Washington, D.C. with rainfall information. Understanding precipitation patterns helps you pack appropriately and plan outdoor activities during your visit.

Flights from St. Louis (STL) to Washington, D.C. (BWI)

Plan your journey from St. Louis to Washington, D.C. with the latest deals, travel tips, and flight information.

St. Louis

→

Washington, D.C.

Cheap flight deals from St. Louis to Washington, D.C.

Average price start from:

$292

One-way from:

$65

Cheapest day:

Thursday

Cheapest In:

November

Find flight deals from St. Louis to Washington, D.C.

Cheapest flights from St. Louis to Washington, D.C.

STL

BWI

$65

STL

BWI

$81

STL

DCA

$95

STL

IAD

$95

STL

BWI

$99

STL

BWI

$104

STL

DCA

$109

STL

IAD

$109

STL

DCA

$119

STL

IAD

$119

STL

DCA

$124

STL

DCA

$125

Price Trends & Analysis

Weekly Price Trends

Monthly Price Trends

Weather & Climate Information

Temperature

Rainfall

flight

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