DFW to SEA: Your Essential Guide to Flights from Dallas to Seattle
Cheapest flight found
$150
Last updated Mar 13, 2026
Prices by Month
Price History
Tracking the Jun 4, 2026 departure — the cheapest date we found.
Price Behavior: DFW → SEA
Based on 6 months of fare data collected by Trip Manta.
Lowest Fare
$150
Highest Fare
$229
Median Fare
$210
Price Spread
$79
Prices fluctuate moderately — tracking can help you catch dips.
Cheapest month to fly: June 2026 (from $150)
Most expensive month: July 2026 (from $229)
Biggest price drop caught: $51 between consecutive checks
Most frequent cheapest airline: Frontier
What This Means for You
Flights from Dallas to Seattle range from $150 to $229, a $79 spread across the months we track. If your dates are flexible, June 2026 tends to have the lowest fares. Prices move enough that tracking can save you money — drops often last only a few hours before the algorithm adjusts back up. We have caught drops as large as $51 between hourly checks on this route.
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From
Dallas (DFW)
To
Seattle (SEA)
Airport Information
Dallas (DFW)
Dallas/Fort Worth International Airport (DFW) serves as a massive global gateway and the primary hub for American Airlines. Spanning more than 26 square miles, it is one of the busiest airports in the world, featuring five terminals connected by the efficient Skylink high-speed train system. Travelers can enjoy a wide array of amenities, including luxury boutiques, yoga studios, and diverse dining options that reflect authentic Texas hospitality.
Seattle (SEA)
Seattle-Tacoma International Airport (SEA), commonly referred to as Sea-Tac, is the largest airport in the Pacific Northwest region. Located about 14 miles south of downtown Seattle, it serves as a major hub for Alaska Airlines and Delta Air Lines. The airport recently underwent significant renovations, including a modernized International Arrivals Facility and an expanded North Satellite terminal, providing travelers with top-tier dining, local art installations, and excellent views of the surrounding mountains.
Frequently Asked Questions
How long is the flight from DFW to SEA?
Direct flights usually last around 4 hours and 15 minutes, covering a total distance of approximately 1,660 miles.
Which airlines fly direct from Dallas to Seattle?
American Airlines and Alaska Airlines are the primary carriers offering non-stop service, though Delta and United often provide competitive connecting flights through their respective hubs.
What is the time difference between Dallas and Seattle?
Seattle is in the Pacific Time Zone, which is two hours behind Dallas, which operates on Central Time.
Is there a train from Seattle airport to downtown?
Yes, the Sound Transit Link Light Rail offers a convenient and inexpensive connection from the airport station to several stops in downtown Seattle, including Pioneer Square and Westlake.
When is the best time to book for low fares?
Generally, booking on a Tuesday or Wednesday for travel on those same mid-week days yields the lowest prices for this specific route, avoiding the Sunday and Monday business travel spikes.
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