DFW to SEA: Your Essential Guide to Flights from Dallas to Seattle
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Last updated Feb 16, 2026
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Tracking the May 7, 2026 departure — the cheapest date we found.
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Search FlightsTrading the wide-open plains of North Texas for the lush, evergreen landscapes of the Pacific Northwest has never been easier than with a direct flight from Dallas/Fort Worth International Airport (DFW) to Seattle-Tacoma International Airport (SEA). This major domestic corridor connects two of the fastest-growing economic hubs in the United States, offering travelers a seamless transition from the world of rodeo and barbecue to a city defined by its world-class coffee culture, tech innovation, and stunning views of Mount Rainier. Whether you are flying for a high-stakes corporate meeting at a tech giant or planning a scenic hiking adventure through the Olympic Peninsula, several major carriers offer frequent daily service to ensure your journey is as convenient as it is memorable for both business and leisure.
Travel Tips
To maximize your comfort and savings on this four-hour journey, try to book your tickets at least four to six weeks in advance, as last-minute fares on this popular business route can skyrocket during peak weeks. Since you are moving between two very different climates, always dress in layers; Dallas might be sweltering in the summer, but Seattle's mornings are often cool and misty even in July. If you have extra time before your flight at DFW, utilize the Skylink train to explore different terminals for high-end dining options, and once you land at SEA, consider taking the Link Light Rail for an affordable, traffic-free ride directly into the heart of downtown Seattle. Finally, keep your camera ready during the descent into Seattle, as the views of the Cascade Mountains and Puget Sound are world-class on a clear day.
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.
Seasonal Pricing Patterns
Flight prices for the DFW to SEA route typically fluctuate based on the Pacific Northwest's weather cycles and tourist demand. The most expensive time to fly is generally during the summer months of June through August, when the weather in Seattle is peak perfection and tourists flock to the region for Alaskan cruises and hiking. Conversely, you can often find the cheapest fares during the rainy shoulder season, particularly in January and February, when demand drops significantly after the holiday rush.
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.