Best Flights starting from $177
from$177economy
Washington, D.C. (BWI)
Tue, May 19
Roundtrip
St Louis (STL)
Mon, May 25
from$191economy
Washington, D.C. (BWI)
Sat, May 16
Roundtrip
St Louis (STL)
Mon, May 25
from$205economy
Washington, D.C. (BWI)
Sat, May 2
Roundtrip
St Louis (STL)
Sat, May 9
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Other Destinations
Washington, D.C. (BWI) to Miami (MIA) in May from $56
From $56
Washington, D.C. (BWI) to Orlando (MCO) in May from $88
From $88
Washington, D.C. (BWI) to Dallas (DFW) in May from $90
From $90
Washington, D.C. (BWI) to Jacksonville (JAX) in May from $90
From $90
Washington, D.C. (BWI) to San Juan (SJU) in May from $111
From $111
Washington, D.C. (BWI) to Charlotte (CLT) in May from $117
From $117
Flights from Other Cities
Atlanta (Any) to St Louis (STL) in May from $126
From $126
Dallas (DFW) to St Louis (STL) in May from $147
From $147
Las Vegas (LAS) to St Louis (STL) in May from $190
From $190
Hilo (ITO) to St Louis (STL) in May from $255
From $255
Augusta (AGS) to St Louis (STL) in May from $267
From $267
Houston (HOU) to St Louis (STL) in May from $274
From $274
✈️ Flight Guide: Washington, D.C. (BWI) → St Louis (STL)
Complete travel information for your May journey
Departing from Washington, D.C. (BWI) FAQs
To find the cheapest flights from St. Louis Lambert International Airport (STL) in April, search flexible-date calendars on major OTAs and set price alerts two to six weeks before travel. Book weekday departures (Tuesday–Thursday) and consider early-morning or red-eye economy options to lower fares. Use keywords like "cheap flights from STL April" when searching and compare low-cost carriers and connecting itineraries for the best deals.
Baggage policies vary by airline; most basic economy fares include one personal item only, while carry-on and checked bags incur fees. Check the airline's fare class before booking and consider adding a carry-on or checked bag at purchase to save money. Always weigh and measure luggage at home to avoid oversized fees at STL's check-in counters.
Yes—St. Louis Lambert International Airport (STL) maintains nonstop service to regional hubs including Chicago (ORD), Kansas City (MCI), Nashville (BNA), Indianapolis (IND), and Louisville (SDF) on a mix of legacy and low-cost carriers. Nonstop availability fluctuates by season and airline schedules, so search direct flights and filter for nonstop options when booking.
Affordable ground options to and from St. Louis Lambert International Airport (STL) include rideshares, local MetroBus service, and economy airport parking. Book an off-site shuttle or park in an economy lot for long stays, and use promo codes for rideshare or airport shuttle bookings. Check real-time traffic and transit schedules to avoid delays and arrive at least 90 minutes before domestic departures.
Major events and festivals in May—such as Cardinals home series starts and regional conferences—can push up demand, causing higher fares and limited seat availability. Book early for May travel and monitor fares with alerts; consider flying midweek or to nearby alternate airports like MidAmerica St. Louis Airport (BLV) to save. Use event-specific search terms like "STL flights during Cardinals May" to anticipate price spikes.
Refund and changeability depend on the airline's fare rules—basic economy is usually nonrefundable and restricts changes, while standard economy may permit changes for a fee or for free depending on the carrier. For flights departing from St. Louis Lambert International Airport (STL), contact your airline directly or manage your booking online to view options; consider travel insurance for added protection against cancellations.
Arriving at St Louis (STL) FAQs
Economy Class (ECONOMY) typically includes a basic seat with limited amenities; baggage allowance and seat selection depend on the airline and fare type. Basic economy often restricts seat choice and charges for carry-on or checked baggage, so confirm your ticket's rules and upgrade to a standard economy if you need more flexibility.
To get the cheapest economy arrival options, compare multiple booking sites, search flexible dates, and use filters for fare class labeled "Economy" or "Basic Economy." Setting fare alerts and booking 2–8 weeks in advance for domestic trips typically yields the best prices. Also check nearby hub airports for potentially lower-cost arrivals.
Many carriers offer premium economy as an upgrade, providing extra legroom, wider seats, and improved service compared to Economy Class (ECONOMY). Upgrade availability depends on the airline and fare class; look for upgrade offers during booking or check in, and consider loyalty program options or paid upgrade bids.
Economy travelers frequently fly to major leisure and business hubs such as New York City, Miami, Orlando, Las Vegas, and Cancun, often prioritizing cost and schedule. When searching for cheap economy flights, include location modifiers like "economy STL to Miami" to find targeted deals to these top destinations.
In October, economy arrival prices often dip in many markets due to the shoulder season after summer, except in festival or foliage hotspots where demand increases. Use seasonal keywords like "October economy fares" and book 4–8 weeks ahead for the best balance of price and availability.
Economy Class (ECONOMY) amenities vary by carrier and route, but generally include basic seating, limited complimentary snacks on some airlines, and access to in-flight entertainment on medium to long-haul flights. For the lowest economy fares, expect fewer complimentary services and consider bringing a personal entertainment device and snacks.
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Events, Festivals & Their Impact on STL Economy Fares — Planning Guide
Events like Cardinals home stands, major conventions at the America's Center, and St. Louis area festivals can drive up demand and economy fares at St. Louis Lambert International Airport (STL). When traveling for an event, book as early as possible—often 8–12 weeks ahead—and consider arriving a day earlier or departing a day later to avoid peak pricing. Alternatively, search for flights into nearby airports or consider flying during weekdays. Use event-specific search terms (e.g., "STL flights during Cardinals playoff" or "St. Louis festival flights") to anticipate fare increases.
Best Time to Fly from St. Louis Lambert International Airport (STL) — Save on Economy Fares
The best time to fly from St. Louis Lambert International Airport (STL) in economy is during shoulder seasons (late January–February, September–October) and midweek (Tuesday–Thursday) when demand is lower. For holiday travel, book 8–12 weeks in advance; for off-peak trips, 3–6 weeks out often yields savings. Early-morning or late-night flights usually have cheaper economy fares, and watching for sales in January and fall can produce substantial discounts.
Direct vs Connecting Flights from St. Louis Lambert International Airport (STL) — Economy Tradeoffs
Direct (nonstop) flights from St. Louis Lambert International Airport (STL) are faster and reduce the risk of missed connections but can be pricier in economy class. Connecting flights often deliver lower fares—especially on long-haul routes—but add total travel time and layover risk. For budget travelers, a single-connection itinerary through a hub like Chicago (ORD) or Atlanta (ATL) can significantly lower the cost; for tight schedules, prioritize nonstop options even at a small premium.
Airline Comparison for Economy Travel from St. Louis Lambert International Airport (STL)
Southwest often provides competitive economy value with two free checked bags and flexible change policies, making it attractive for families. Legacy carriers like Delta, American, and United offer extensive network connections and competitive basic economy fares but frequently charge for carry-on and checked baggage on the lowest fares. Low-cost carriers and regional partners can offer the cheapest headline fares from St. Louis Lambert International Airport (STL), but factor in ancillary fees for a full price comparison. Use keyword searches like "Southwest STL baggage" or "cheap Delta economy STL" to compare current offers.
Seasonal Travel Tips for Economy Flyers from St. Louis Lambert International Airport (STL)
Winter: Expect possible weather delays—allow extra connection time, book refundable or flexible economy fares if traveling during January–March storms. Spring: Look for shoulder-season deals in April and May; book early for spring break weeks. Summer: Peak season (June–August) demands early booking and flexibility on travel dates. Fall: September and October offer the best value for economy travelers with lower fares and pleasant conditions. For every season, search with location and month modifiers like "cheap STL flights September" and sign up for fare alerts.
Flight Times & Schedules from St. Louis Lambert International Airport (STL) to Economy Class (ECONOMY) Destinations
Typical nonstop economy flight times from St. Louis Lambert International Airport (STL) include: Chicago (ORD) ~1.5 hours, Nashville (BNA) ~1.25 hours, Dallas/Fort Worth (DFW) ~2 hours, Orlando (MCO) ~2.5 hours, and Denver (DEN) ~2.5 hours. Connecting itineraries add layover time—plan for a minimum 1–2 hour domestic connection at major hubs. Use OTA filters for earliest/shortest total travel time and include time-of-day preferences (red-eye or early morning) to find lower economy fares while balancing convenience.
Cheap Flights from St. Louis Lambert International Airport (STL) — Economy Class Deals
To find the cheapest economy flights from St. Louis Lambert International Airport (STL), use flexible-date searches and fare alerts, compare OTAs and airline sites, and consider nearby alternate airports like MidAmerica St. Louis Airport (BLV). Search with location-specific modifiers (e.g., "STL to Orlando cheap economy") and target off-peak travel windows in January, February, and September for the best value. Book mid-week departures, be open to connecting flights, and bundle with hotels only when it creates genuine savings. Sign up for airline newsletters and follow flash-sale aggregators to catch limited-time offers.