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United Airlines Frequently Asked Questions about Flights from DEN to SEA

What are the cheapest flights United Airlines has from DEN to SEA?
The cheapest flights we could find in 3/2 on United Airlines from DEN to SEA are:
  • United flight UA260 leaving Denver on 3/2 at 6:45 am and returning from Seattle on 3/4 at 8:09 am for only $133 per person.*
  • United flight UA445 leaving Denver on 3/3 at 6:25 pm and returning from Seattle on 3/4 at 3:56 pm for only $188 per person.*

  • How many flights does United Airlines fly from DEN to SEA?
    United Airlines flies 676 flights every month between DEN and SEA.

    What aircraft type does United Airlines fly to DEN and SEA?
    United Airlines typically flies the Boeing 737-800 out of DEN and returns on a Boeing 737-800 from SEA.

    *Prices vary and will be updated when you view current flight availability results. Deals displayed here are based on flight pricing and availability as of 02/21/2018 and may change as you get closer to the actual flight date. Deals displayed whose dates are in the past are no longer valid.

    United Airlines Flights from DEN to SEA

    Travelocity is proud to offer some of the lowest fares on United Airlines flights from Denver to Seattle. With our low price guarantee and free 24 hour cancellation, you can book that flight to SEA with confidence today. Choose from some of the best days to fly with our flexible booking calendar and you’ll save even more money on your journey from DEN to SEA. Whether you’re on the way to a well-deserved vacation or just flying for business, take advantage of these airfare deals today and go and smell the roses!

    Flight Schedule for DEN to SEA

    A $ indicates that offers pricing for these airline's flights on the dates shown. A dot () indicates the airline has an available flight scheduled, but Travelocity does not provide online booking at this time.