When To Fly From Seattle To Denver
Average Lowest Fares Found by Travel Month
HOW TO FIND THIS FARE
  • AIRLINES
    United
  • ADVANCE PURCHASE REQUIRED
    14 DAYS BEFORE TRAVEL
  • DAYS AVAILABLE FOR TRAVEL
    Tue/Wed
  • TRAVEL ENDING
    Tue, May 23, 2017
Andrew G.
Staff Airfare Analyst
Andrew's Notes:
Non-stop.
Spring travel. No min. stay. Fare can be bought one-way for half the lowest roundtrip price. Certain travel dates only!
United sells basic economy fares on this route, which limit your carry-on allowance to just one small "personal item" such as a purse or small backpack up to 17x10x9 inches. Other restrictions apply. Consider the slightly higher regular economy fare if you need more carry-on allowance.

To the best of our knowledge, there is a reasonable amount of seat availability at the stated price. Flexible travel dates may be required to find this rate; seats may not be available on all flights or all dates of travel. Holiday periods may be excluded. We monitor the availability of the fare and take efforts to remove and/or modify fares when no longer available.
All mandatory taxes/fees are included in the price. Tax-inclusive fare may be a few dollars higher or lower depending on the airport you connect through, if any. Baggage fees, if applicable, and other optional fees are not included. Our Dealhounds found this airfare using flexible date search. This means we searched a range of dates to find you the best price.
More Details
Close Details
Lowest Price by Travel Month
SEATTLE (SEA) to DENVER (DEN) Flights
May
05/27/17 - 05/31/17
$153
Frontier
June
06/03/17 - 06/12/17
$170
Frontier
July
07/19/17 - 07/29/17
$170
Frontier
August
08/23/17 - 08/29/17
$136
Frontier
September
09/28/17 - 10/03/17
$163
Frontier
October
10/17/17 - 10/23/17
$312
Delta
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