Other Options for This Route
Washington, D.C. (BWI) to St Louis (STL) in April from $140
From $140
Washington, D.C. (BWI) to St Louis (STL) in May from $140
From $140
Washington, D.C. (BWI) to St Louis (STL) in June from $190
From $190
Best Flights starting from $197
from$197economy
Washington, D.C. (BWI)
Tue, Aug 11
Roundtrip
St Louis (STL)
Tue, Aug 18
from$197economy
Washington, D.C. (BWI)
Tue, Aug 18
Roundtrip
St Louis (STL)
Tue, Aug 25
from$211economy
Washington, D.C. (BWI)
Tue, Aug 11
Roundtrip
St Louis (STL)
Wed, Aug 19
from$218economy
Washington, D.C. (BWI)
Mon, Aug 17
Roundtrip
St Louis (STL)
Tue, Aug 25
from$218economy
Washington, D.C. (BWI)
Mon, Aug 31
Roundtrip
St Louis (STL)
Wed, Sep 9
from$238economy
Washington, D.C. (BWI)
Mon, Aug 24
Roundtrip
St Louis (STL)
Wed, Sep 2
from$258economy
Washington, D.C. (BWI)
Mon, Aug 24
Roundtrip
St Louis (STL)
Mon, Aug 31
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Other Options for This Route
Other Destinations
Washington, D.C. (BWI) to Fort Lauderdale (FLL) in August from $33
From $33
Washington, D.C. (BWI) to Miami (MIA) in August from $38
From $38
Washington, D.C. (BWI) to Miami (Any) in August from $38
From $38
Washington, D.C. (BWI) to Orlando (MCO) in August from $49
From $49
Washington, D.C. (BWI) to Orlando (MCO) in August from $66
From $66
Washington, D.C. (BWI) to Miami (Any) in August from $66
From $66
Flights from Other Cities
Orlando (MCO) to St Louis (STL) in August from $85
From $85
Boston (BOS) to St Louis (STL) in August from $145
From $145
Manchester (MHT) to St Louis (STL) in August from $174
From $174
Las Vegas (LAS) to St Louis (STL) in August from $180
From $180
Phoenix (PHX) to St Louis (STL) in August from $220
From $220
Denver (Any) to St Louis (STL) in August from $237
From $237
✈️ Flight Guide: Washington, D.C. (BWI) → St Louis (STL)
Complete travel information for your August journey
August is a popular month to fly from Baltimore/Washington International Thurgood Marshall Airport (BWI) to St. Louis Lambert International Airport (STL) as families and business travelers take advantage of summer schedules. Expect multiple Southwest nonstop options and several one-stop itineraries via major hubs such as Charlotte or Dallas with American or Delta. For affordable fares look for midweek departures and set price alerts 3–6 weeks in advance; include nearby departure alternatives like Washington, D.C. (DCA/IAD) to compare savings. Pack for warm weather in St. Louis—lightweight clothing and sun protection—and confirm baggage rules before booking. Book now for the best BWI to STL deals in August and secure your preferred departure time.
Departing from Washington, D.C. (BWI) FAQs
A nonstop flight from Baltimore/Washington International Thurgood Marshall Airport (BWI) to St. Louis Lambert International Airport (STL) typically takes about 1 hour 50 minutes to 2 hours. August schedules often include more evening and midday departures due to summer demand, so total trip time can vary if you book a connecting service. For the fastest travel, search for nonstop BWI to STL flights and confirm departure times before booking.
For cheap flights between Baltimore/Washington International Thurgood Marshall Airport (BWI) and St. Louis Lambert International Airport (STL) in August, midweek departures (Tuesdays and Wednesdays) often yield lower fares compared with peak weekend travel. Booking 3–6 weeks in advance and using fare alerts for BWI to STL deals can further reduce prices. Consider flexible date searches and nearby major cities like Washington, D.C., Baltimore, Philadelphia, and New York for alternate routing to save.
Major carriers that operate the BWI to STL route include Southwest Airlines, American Airlines (via connections), and Delta (via connections). In August, Southwest commonly offers multiple nonstop frequencies while legacy carriers may provide one-stop options through hubs. Compare prices and baggage policies on carrier websites and use aggregated search engines to evaluate nonstop versus connecting options.
Baltimore/Washington International Thurgood Marshall Airport (BWI) features multiple concourses (A, B, C, D, E) with Southwest primarily operating out of Concourse D. In August you’ll find expanded summer dining and retail hours, though security lines can be busier during peak afternoon and evening periods. Arrive 90 minutes before domestic departures, use TSA PreCheck if available, and check terminal maps for ground transportation to nearby destinations like Annapolis and Washington, D.C.
As of August travel guidance, there are no federal domestic COVID-19 testing requirements, but airlines and local jurisdictions may have updated recommendations. Check both airline policies and the St. Louis city health advisories before flying. Stay prepared with a mask and proof of vaccination if required by carrier or airport, and review airline cancellation and change policies for flexible summer travel.
From Baltimore/Washington International Thurgood Marshall Airport (BWI), travelers can access ride-shares, taxis, MARC/Amtrak connections at BWI Rail Station, and shuttle services to nearby cities like Washington, D.C., and Annapolis. In August, demand for ground transport can increase with summer tourism, so pre-book airport shuttles or rideshare pickups to ensure timely transfers. For itineraries connecting to St. Louis, consider parking options and long-term lots if leaving a car behind.
Arriving at St. Louis Lambert International Airport (STL) from Baltimore/Washington International Thurgood Marshall Airport (BWI) in August offers easy access to St. Louis attractions and regional hubs. Expect summer crowds and warm weather; plan transfers to downtown St. Louis, the Gateway Arch, or longer drives to Springfield or Kansas City. Use rideshare pick-up zones or pre-book car rentals ahead of the August rush, and check for special event traffic when large festivals are scheduled. For best value, compare connecting flights through nearby major hubs and consider flexible return dates when searching for cheap BWI to STL round-trip fares.
Arriving at St Louis (STL) FAQs
St. Louis Lambert International Airport (STL) handles domestic arrivals on two main terminals with efficient ground transport links. In August, STL can be warm and humid—plan ground travel accordingly and allow extra time for baggage claim and summer crowds. Nearby destinations commonly accessed from STL include downtown St. Louis, Clayton, Ferguson, Springfield (MO), Chicago (by connecting flights), and Nashville.
Yes, St. Louis Lambert International Airport (STL) offers multiple car rental companies on-site and designated rideshare pickup zones. Expect higher demand in August with summer events, so reserve rentals in advance and look for off-airport deals if rates spike. Shuttle services and public transit to downtown St. Louis are reliable, but compare cost and travel time to choose the best option.
St. Louis Lambert International Airport (STL) is a mid-sized hub with clear signage and relatively short connections between domestic gates. In August, busy periods around midday and early evening can increase walk times; if connecting through STL, allow at least 60–90 minutes for tight itineraries. Check terminal and gate information ahead of arrival and use airline apps for real-time updates.
From St. Louis Lambert International Airport (STL) you can easily access Gateway Arch National Park, Forest Park, the Delmar Loop, and nearby cities such as Springfield, Kansas City, Chicago, and Nashville via connecting flights or drives. August is festival season in St. Louis with outdoor concerts and food events—book accommodations early. Use STL as a practical gateway for Midwest road trips and regional business travel.
To find last-minute deals for travel arriving at St. Louis Lambert International Airport (STL) in August, use fare aggregators with flexible dates, sign up for airline flash sales, and check Southwest and other carriers for last-minute seat sales. Consider nearby alternative airports and flexible return dates to reduce costs. Booking directly with airlines sometimes yields better change policies for August summer travel.
August in St. Louis is typically hot and humid, with occasional thunderstorms that can cause flight delays or brief airport ground holds. Monitor weather forecasts before flying and allow extra connection time during summer storm seasons. Pack layers for indoor air-conditioned venues and consider travel insurance or flexible tickets if your itinerary is weather-sensitive.
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August Events & Festivals Near Baltimore/Washington International Thurgood Marshall Airport (BWI) and St. Louis Lambert International Airport (STL)
August brings summertime festivals that affect travel to and from Baltimore/Washington International Thurgood Marshall Airport (BWI) and St. Louis Lambert International Airport (STL). Near BWI and the greater Washington, D.C. area, look for outdoor concerts, food festivals, and cultural events in Baltimore, Annapolis, and the capital. Around STL, August often features music festivals, night markets, and family-friendly events near the Gateway Arch and Forest Park. These events can increase demand for flights, car rentals, and hotels—book early and consider weekday travel to avoid crowds.
Best Time to Fly from Baltimore/Washington International Thurgood Marshall Airport (BWI) to St. Louis Lambert International Airport (STL)
The best time to fly from Baltimore/Washington International Thurgood Marshall Airport (BWI) to St. Louis Lambert International Airport (STL) for value in August is midweek, particularly Tuesday or Wednesday mornings. Book 3–6 weeks ahead to capture summer fare dips; for peak August weekends, reserve earlier to avoid higher prices. Early-morning flights often see fewer delays, while late-afternoon and evening departures are subject to cascading delays during busy travel periods.
Direct vs. Connecting Flights: Baltimore/Washington International Thurgood Marshall Airport (BWI) to St. Louis Lambert International Airport (STL)
Nonstop flights from Baltimore/Washington International Thurgood Marshall Airport (BWI) to St. Louis Lambert International Airport (STL) are fastest and often more reliable during summer thunderstorms, making them ideal for time-sensitive trips. Connecting flights can be cheaper, especially when routed through large hubs, but add layover time and the risk of missed connections. In August, prioritize nonstop BWI to STL flights for weekend getaways or business travel; opt for connecting itineraries if you’re seeking lower fares and have a flexible schedule.
Airline Comparison for Baltimore/Washington International Thurgood Marshall Airport (BWI) to St. Louis Lambert International Airport (STL)
Southwest Airlines often offers multiple nonstop flights between Baltimore/Washington International Thurgood Marshall Airport (BWI) and St. Louis Lambert International Airport (STL) with generous two-checked-bag policies for many fare types, making it a strong value choice in August. American and Delta may provide one-stop options with connections through their hub cities; they can be competitive with loyalty benefits but may charge checked-bag fees on basic economy fares. Evaluate total trip cost—including baggage and seat selection—when comparing carriers for August travel. CTA: Compare BWI to STL airline options now and select the flight that balances price and convenience for your August itinerary.
Seasonal Travel Tips for August: Baltimore/Washington International Thurgood Marshall Airport (BWI) to St. Louis Lambert International Airport (STL)
For August travel from Baltimore/Washington International Thurgood Marshall Airport (BWI) to St. Louis Lambert International Airport (STL), pack breathable clothing, a light rain jacket, and sun protection due to hot, humid conditions and afternoon thunderstorms. Arrive at least 90 minutes before domestic departures at BWI during peak summer times and use TSA PreCheck if available to expedite security. Monitor flight status for storm-related delays and keep digital boarding passes and travel documents handy. If visiting nearby destinations such as Washington, D.C., Baltimore, or Springfield, plan ground transportation in advance and consider off-peak travel to save on fares and avoid crowds.
Flight Time and Schedules: Baltimore/Washington International Thurgood Marshall Airport (BWI) to St. Louis Lambert International Airport (STL)
A nonstop flight between Baltimore/Washington International Thurgood Marshall Airport (BWI) and St. Louis Lambert International Airport (STL) usually takes about 1 hour 50 minutes to 2 hours. In August, expect several daily departures—mornings, midday, and evenings—especially from carriers like Southwest. Connecting itineraries typically add 1–3 hours depending on the layover city (e.g., Charlotte, Dallas, Atlanta). For travel planning, select flights earlier in the day to minimize weather-related delays and allow extra connection time if your itinerary involves a single-layover route.
How to Find Cheap Flights from Baltimore/Washington International Thurgood Marshall Airport (BWI) to St. Louis Lambert International Airport (STL) in August
To find cheap flights from Baltimore/Washington International Thurgood Marshall Airport (BWI) to St. Louis Lambert International Airport (STL) in August, use flexible date searches and set fare alerts at least 3–6 weeks before travel. Midweek departures (Tuesday/Wednesday) often undercut weekend pricing; consider early-morning or late-evening flights for lower fares. Compare nonstop Southwest options against one-stop itineraries via hubs—sometimes a connection through Charlotte or Dallas yields savings if your schedule allows. Bundle fares with a hotel or car rental if your trip includes visiting nearby destinations like Washington, D.C. or Springfield. CTA: Search BWI to STL cheap flights now and activate alerts to capture August fare drops.