Flight Deals from Dallas to Seattle from $87

When planning your flights from Dallas to Seattle, be aware that prices vary significantly throughout the year. The peak price season is clearly around mid-April, where prices can spike to a high of around 1248, suggesting this is a time to avoid if you're looking for lower fares. In contrast, late August through early October shows a low price trend, with fares dropping to the range of about 185 to 229. Abrupt price changes are noticeable, especially in March, indicating that the spring season has a steep rise in costs leading into April. Generally, the high season lasts from early March to late April, while low prices can be found more readily from late June until mid-October.

If you're planning to fly from Dallas to Seattle, the optimal time to purchase your tickets is about 83 days before your departure, when prices are typically at their lowest around $252. Be cautious if you're considering buying earlier, as prices can reach up to $459, significantly higher than waiting until this key period. As you approach the date, particularly within 18 days, you'll see a dramatic surge in prices—from about $313 to potentially $459. After missing the 83-day mark, your next best chance is around 56 days before departure, where prices may drop to about $261. If less than 56 days remain, book immediately to avoid the escalating costs, as fares increase steadily thereafter, culminating in a rapid rise in the final days before departure.