Southwest Airlines flights from SeaTac (SEA) to Denver (DEN)
Find comprehensive Southwest Airlines flight information, schedules, and booking details for direct flights from SeaTac (SEA), US to Denver (DEN), US. Southwest Airlines operates 10-20 flights daily flights on this route.• Flight Duration: 2h 30m - 2h 59m (average flight time)• Distance: 1028 miles (1654 km) (air miles between airports)• Daily Flights: 10-20 flights (scheduled departures per day)
SeaTac (SEA)
US
Denver (DEN)
US
FLIGHT TIME
2h 30m - 2h 59m
FLIGHT DISTANCE
1028 miles (1654 km)
2h 30m - 2h 40m
05:00
20:35
1028 miles (1654 km)
March
1 (Show)
121
Terminal 1 (SEA)
Terminal B (DEN)
Southwest Airlines Flight Schedule from SeaTac (SEA) to Denver (DEN)
| Flight | Airline | Departure | Arrival | Aircraft |
|---|---|---|---|---|
WN734 |  Southwest Airlines | 05:00 | 08:35:00 | Boeing 737MAX 8 Passenger |
WN1456 | Southwest Airlines | 12:10 | 15:50:00 | Boeing 737-700 (winglets) Passenger/BBJ1 |
WN1567 | Southwest Airlines | 20:35 | 00:05:00 | Boeing 737MAX 8 Passenger |
Southwest Airlines Monthly Flight Calendar
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Route Insights
Duration variability: Flight duration on this route can vary based on aircraft type, wind conditions, and airline scheduling. Average duration is 2h 30m - 2h 59m.
Pricing patterns: March typically offers lower prices due to reduced demand outside peak travel seasons.
Best departure times: Peak departure times are 5:00, 12:00, 20:00, offering more flight options and potentially better connections.
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Southwest Airlines Policy Highlights
Baggage Policy
Two free checked bags, additional charges apply for excess or overweight baggage.
For detailed baggage policies, visit Southwest Airlines airline page or Southwest Airlines official website.
Check-in Information
Online check-in available 24 hours before departure.
Southwest Airlines Terminal Information
Departure Terminal at SeaTac (SEA):
• Southwest Airlines flights from SeaTac (SEA) depart from Terminal Terminal 1
• Terminal Terminal 1: Southwest Airlines operates from this terminal
Arrival Terminal at Denver (DEN):
• Southwest Airlines flights to Denver (DEN) arrive at Terminal Terminal B
• Terminal Terminal B: Southwest Airlines operates from this terminal
Frequently Asked Questions about Southwest Airlines Flights
How many Southwest Airlines flights operate from Seattle (SEA) to Denver (DEN)?
Southwest Airlines operates 3 flights from Seattle (SEA) to Denver (DEN).
What city does Denver (DEN) airport serve?
Denver (DEN) airport serves Denver, US.
How long is the Southwest Airlines flight from Seattle (SEA) to Denver (DEN)?
The flight duration is approximately 2h 30m - 2h 59m.
What is the distance from Seattle (SEA) to Denver (DEN)?
The distance is 1028 miles (1654 km).
What aircraft does Southwest Airlines use on this route?
Southwest Airlines uses Boeing 737MAX 8 Passenger, Boeing 737-700 (winglets) Passenger/BBJ1 on this route.
Which other airlines operate on this route?
4 other airlines operate on this route: United Airlines, Delta Air Lines, Alaska Airlines and 1 more.
What are the earliest and latest Southwest Airlines flight departure times?
The earliest Southwest Airlines flight departs at 05:00 and the latest departs at 20:35.
Which terminal does Southwest Airlines use at Seattle (SEA)?
Southwest Airlines flights from Seattle (SEA) depart from Terminal Terminal 1.
Which terminal does Southwest Airlines use at Denver (DEN)?
Southwest Airlines flights to Denver (DEN) arrive at Terminal Terminal B.
What is the cheapest month to fly Southwest Airlines from Seattle (SEA) to Denver (DEN)?
March is typically the cheapest month to fly Southwest Airlines on this route.
What is the average price for a Southwest Airlines flight from Seattle (SEA) to Denver (DEN)?
The average price for a round-trip Southwest Airlines flight on this route is approximately $122. Prices can vary based on booking time and demand.
How many Southwest Airlines flights operate per week on this route?
Southwest Airlines operates approximately 121 flights per week from Seattle (SEA) to Denver (DEN).