Best Flights starting from $246
from$246economy
St Louis (STL)
Thu, Jun 4
Roundtrip
Seattle (SEA)
Mon, Jun 8
from$259economy
St Louis (STL)
Sat, Jun 6
Roundtrip
Seattle (SEA)
Wed, Jun 10
from$269economy
St Louis (STL)
Fri, Jun 5
Roundtrip
Seattle (SEA)
Tue, Jun 9
from$270economy
St Louis (STL)
Wed, Jun 3
Roundtrip
Seattle (SEA)
Sun, Jun 7
from$274economy
St Louis (STL)
Sun, Jun 7
Roundtrip
Seattle (SEA)
Thu, Jun 11
from$304economy
St Louis (STL)
Mon, Jun 8
Roundtrip
Seattle (SEA)
Fri, Jun 12
from$326economy
St Louis (STL)
Tue, Jun 9
Roundtrip
Seattle (SEA)
Sat, Jun 13
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Other Options for This Route
Other Destinations
St Louis (STL) to Los Angeles (LAX) in June from $157
From $157
St Louis (STL) to Las Vegas (Any) in June from $233
From $233
St Louis (STL) to Los Angeles (LAX) in June from $244
From $244
St Louis (STL) to Orlando (MCO) in June from $245
From $245
St Louis (STL) to Miami (MIA) in June from $330
From $330
St Louis (STL) to Jacksonville (OAJ) in June from $373
From $373
Flights from Other Cities
Chicago (ORD) to Seattle (SEA) in June from $148
From $148
Reno (RNO) to Seattle (SEA) in June from $170
From $170
Salt Lake City (SLC) to Seattle (SEA) in June from $205
From $205
San Antonio (SAT) to Seattle (SEA) in June from $215
From $215
Knoxville (TYS) to Seattle (SEA) in June from $219
From $219
Burbank (BUR) to Seattle (SEA) in June from $226
From $226
✈️ Flight Guide: St Louis (STL) → Seattle (SEA)
Complete travel information for your June journey
Departing from St Louis (STL) FAQs
To find cheap economy flights from Seattle-Tacoma International Airport (SEA), compare fares across airlines (Alaska, Delta, United, American, low-cost carriers), set fare alerts, and search 6–8 weeks ahead for domestic trips or 2–4 months for international travel. Use flexible dates and nearby airports like Portland (PDX) or Vancouver, BC to unlock lower fares, and book mid-week to often catch the best discounts. Try a CTA: Search cheap flights from Seattle (SEA) now to compare deals.
For domestic economy flights from Seattle-Tacoma International Airport (SEA), arrive at least 90 minutes before departure to allow time for check-in, security, and potential TSA lines. During peak travel months (June–August, December), give yourself 2 hours and monitor airport advisories. Allow extra time if you need to check baggage or use TSA PreCheck.
Yes — January and February typically offer lower demand and discounted economy fares from Seattle-Tacoma International Airport (SEA), especially for domestic routes to Los Angeles, Las Vegas, and Phoenix, and for off-season international travel to Mexico or Central America. Use fare trackers and book one to three months out for the best low-cost fares during these winter months.
Seattle-Tacoma International Airport (SEA) serves major West Coast and transcontinental hubs: Portland, San Francisco, Los Angeles, Las Vegas, Phoenix, Denver, Chicago, New York, and Vancouver (BC). It also offers seasonal and year-round flights to popular international destinations like Tokyo, London (via partners), and Cancun. For cheap economy travel, look for nonstop and one-stop options to these top destinations.
Refund and change policies vary by airline and fare type; basic economy often restricts refunds and free changes, while flexible economy or refundable fares allow modifications for a fee or no fee. Check the carrier’s policy (Alaska, Delta, United, etc.) at booking, and consider travel insurance for added protection when purchasing low-cost fares departing from Seattle-Tacoma International Airport (SEA).
Book early (2–3 months ahead), fly mid-week, consider early-morning flights and alternate nearby airports, and use loyalty points for upgrades. Summer at Seattle-Tacoma International Airport (SEA) sees higher demand for routes to southern California and Hawaii, so use price alerts and flexible date searches to lock in the cheapest economy seats.
Arriving at Seattle (SEA) FAQs
Arriving in 'Economy Class (CHEAPEST)' typically refers to the most restrictive, lowest-priced economy tickets that offer seat-only fares with limited or no baggage allowance and stricter change/refund rules. These fares are ideal for budget travelers but check luggage fees and boarding priorities before booking to avoid extra costs on arrival.
Arrival procedures are the same regardless of fare class: follow immigration, baggage claim, and customs where applicable. However, cheapest economy tickets may be on flights with tight connections, so verify layover times and allow extra time for deplaning, customs, and baggage claim.
Cheapest economy fares are usually least flexible in March and April, especially around spring break. If your travel plans might change in these months, consider a flexible economy fare or purchase travel insurance to avoid hefty change or cancellation fees.
Cheapest economy routes often target major leisure and business destinations: Los Angeles, Las Vegas, Phoenix, San Diego, New York City, Orlando, and Cancun. These routes frequently feature sales and promotional economy fares, especially off-peak and shoulder months.
To minimize arrival costs on cheap economy tickets, pack light to avoid checked baggage fees, pre-purchase baggage when possible for savings, check airport transfer options ahead of time, and use public transit or shared shuttles to reduce ground transportation costs at your destination.
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Events & Festivals That Affect Cheap Economy Fares (SEA)
Major events and festivals influence airfare from Seattle-Tacoma International Airport (SEA) and arrival demand for budget travelers. Plan ahead for these dates to avoid price spikes or to capture event-related deals.
Best Time to Fly from Seattle-Tacoma International Airport (SEA) for Cheap Economy Fares
The best time to fly for cheap economy fares from Seattle-Tacoma International Airport (SEA) is during shoulder seasons (September–November, January–March) and mid-week days (Tuesday–Thursday). Book domestic trips 1–3 months out, international 2–4+ months out, and monitor sale periods in January and late summer. Use keywords like 'best time to fly from SEA' and 'Seattle cheap travel windows' across content to improve search relevance.
Tips
- Fly mid-week and early morning for lowest economy fares.
- Use shoulder-season travel to avoid peak pricing.
- Book at least 6–8 weeks for domestic economy; 2–4 months for international routes.
Direct vs Connecting Flights: What’s Best for Cheap Economy from SEA?
Direct (nonstop) flights are faster and more convenient but often cost more than connecting flights in the cheapest economy fares. Connecting itineraries can provide big savings, especially when traveling from Seattle-Tacoma International Airport (SEA) to intercontinental destinations. Evaluate total travel time, layover risk, and baggage transfer rules when choosing a cheaper connecting option.
Airline Comparison: Finding the Cheapest Economy Carrier from SEA
Compare airlines flying from Seattle-Tacoma International Airport (SEA) to identify the cheapest economy options: Alaska Airlines often has competitive West Coast and regional fares; Delta offers strong transcontinental and global network pricing; United and American provide hub-connect options that can reduce prices via connections; low-cost carriers (Spirit, Frontier, and seasonal discount operators) may offer the absolute cheapest economy tickets but with more ancillary fees. Use comparison keywords like 'Alaska vs Delta cheap flights from SEA' and 'best budget airline Seattle' on landing pages.
Seasonal Travel Tips for Cheap Economy Flights from SEA
Seasonal tips can save significant money when flying economy from Seattle-Tacoma International Airport (SEA) or arriving on the cheapest fares. Pack light in summer, expect winter delays, and capitalize on shoulder seasons for best pricing. Use CTAs like 'Search cheap flights from SEA' and 'Compare lowest economy fares' across landing pages.
Flight Times & Schedules from Seattle-Tacoma International Airport (SEA)
Typical flight times from Seattle-Tacoma International Airport (SEA) vary by destination: West Coast cities (Los Angeles, San Francisco) ~2.5–3 hours; Las Vegas ~2.5 hours; Phoenix ~2.75 hours; Denver ~2.75–3 hours; Chicago ~4–4.5 hours; New York ~5–6 hours non-stop. International flights to Tokyo take ~10–11 hours, London via partners ~9–10 hours with connections. Cheapest economy tickets often use red-eye flights or one-stop schedules to shave costs.
Cheap Flights Guide: How to Find the Cheapest Economy Fares from SEA
Finding cheap economy flights from Seattle-Tacoma International Airport (SEA) requires a mix of timing, flexibility, and smart search tactics. Use price alert tools, search flexible dates, consider nearby airports (Portland PDX, Vancouver YVR), and compare low-cost carriers and major airlines for the best economy class fares. Rotate keywords like 'cheap flights from Seattle', 'Seattle economy deals', and 'low-cost fares SEA' in site copy to capture search traffic.