Image Credits: Howard Ignatius, Creative Commons 2.0 (flickr)
Published November 18, 2025 by

Nonstop Flights: Dallas to/from Seattle $148-$171 r/t [December-February] (Use code: WINTER20) (No Christmas) – Delta / Alaska Airlines

[11/18/2025 @ 02:00 PM CT] Deal time-stamp.

Deals are usually valid 24 to 72 hours after posting, but can expire at any time (see time-stamp).

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To book: Use our updated link list.
Or book with these sites: Alaska Airlines, Priceline, Skyscanner, Expedia, Travelocity, Tripadvisor, Orbitz, CheapTickets, Kayak.

Delta and Alaska Airlines have round-trip flights from Dallas (DFW) to Seattle (SEA) for $148-$171, NONSTOP. Flights December to February. Weekends available. Origin/Destination reversible. No Christmas dates available.

Delta allows one carry-on bag and one personal item for free. You can avoid paying for seat selection by accepting the randomly assigned seat at the gate.

You can usually save more money by booking your flight+hotel together as a package instead of separately.

Do a search on Tripadvisor to find guides, tours, restaurants, attractions, and cool things to do. It’s a good resource to use for planning your day-to-day itinerary while on vacation.

We post new flight deals often! You can check out our other deals by returning to the Front Page of our website: cheapdfw.com (linked).

Here are some other offers that we think are worth mentioning. List updated 11/07/2025.

We now track coupon codes, discount codes, gift card discounts, and credit card offers that have a better value than their historical averages.


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Use the example date links on our website to pull up the fare.

Seattle fares:

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  • Tips: Use Tripadvisor to create a Hotel “short list”. First, plug in your dates and destination. Then select “Sort by Traveler Ranked”. Finally, select the “Traveler Ranking” filter to show “only 4* and up”. Use this resulting “short list” of hotels to find the cheapest one with a high ranking.
  • Tips: Hotel rates for Weekend dates are usually higher than the rates for Sunday through Thursday. Tripadvisor has a color-coded date calendar, red when the average hotel price for that day is more expensive, green for less expensive. You can use this to get an overview of what dates in the month are at a discount.
  • Tips: Different booking websites will often have differing routes, prices, and availability. Before you finalize your purchase, do a quick check on BookingBuddy, Skyscanner, and Kayak to see if any other site or airline is offering a better deal.


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Ren P. Artemio

Ren is the Chief Director of Nap Times at Escape Houston, Escape ATX, Cheap DFW, and Escape Flights. He really likes researching airfare and the travel industry, especially when it means getting a cheap flight to anywhere (he's not picky).

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