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Cheap Flights From Denver, Colorado To Seattle, Washington
Denver
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Airfare Details for flights from Denver to Seattle
Search Now for Low Fares
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Airline(s):Southwest
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Seats are:Limited Availability
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Available for travel:Mon-Thu & Sat
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More Details:Late Summer/Fall travel; Nonstop flights, Travel between Aug. 26 - Dec. 18, 2013, No min. stay, Fare can be bought one-way for half the lowest roundtrip ...moreprice
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Last Updated:Tuesday, June 18, 2013
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Our Notes:Blackout dates: Sep. 2 & Nov. 26 - Dec. 3, 2013. When we checked, we found seats at this price departing SEP 10 and returning SEP 17. There are other dates ...moreavailable as well. Do not use the fare calendar below to find seats at this fare. Only use the Southwest link shown. Southwest fares can only be booked on Southwest.com. Other airlines often match each other on sale fares.
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. 
Are Your Travel Dates Set? Check Fares Now:
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More Flights From Denver To Seattle (DEN-SEA)
Price
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Details
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|---|---|
| $250 RT | Non-Stop Flights. No min. stay. Fare can be bought one-way for half the... (Frontier) See all details » |
| |
Reviews for Denver to Seattle (DEN-SEA)
Flown this route before? Write a review
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“check in with alaska @ denver good, check in with frontier @ seatac grumpy!”
Flight from Denver to Seattle
- Airline:
- Alaska
- RT/OW
- Round Trip
- Number of Stops:
- No stops
- Date of Flight:
- April 2011
- Seat Class:
- economy
everything with alaska airlines was good. good customer service all the way around. check in with our return flight back with frontier...the animals on the commercials may be funny and friendly but people at the check in counter...look out! everything else on frontier was pretty good though - especially the extra leg room. our <2 year old had enough room to stand, move around a bit and play.
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“Suffient comfort and service for a two hour flight”
Flight from Denver to Seattle
- Airline:
- Frontier
- RT/OW
- Round Trip
- Number of Stops:
- No stops
- Date of Flight:
- February 2011
- Seat Class:
- economy
Always great flying Frontier, even economy seats have decent amount of leg room. Flight was on schedule and flight attendents polite and helpful.
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Flight from Denver to Seattle
- Airline:
- Southwest
- RT/OW
- One Way
- Number of Stops:
- No stops
- Date of Flight:
- November 2010
- Seat Class:
- economy
Left on time, boarding was no problem and the seats were very comfortable with adequate legroom. (I am 6'3"). Attendants were not very professional. The experience was very positive and would try them again without question.
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“Good service even with a delay”
Flight from Denver to Seattle
- Airline:
- Frontier
- RT/OW
- Round Trip
- Number of Stops:
- No stops
- Date of Flight:
- October 2010
- Seat Class:
- economy
About 20 minutes or so into the flight, there was a medical emergency on board so we had to land in Jackson, WY. The crew was very efficient and professional in both caring for the sick passenger and the rest of the passengers. They kept us informed on the delays so we could call ahead to anyone waiting, got their paperwork done quickly and we were back in the air.
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Flight from Denver to Seattle
- Airline:
- Southwest
- RT/OW
- Round Trip
- Number of Stops:
- No stops
- Date of Flight:
- August 2010
- Seat Class:
- economy
The 1st trip with SW was very pleasant and most of all hassle-free. The staff was efficient and even entertaining! Kudos to one and all.
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Flight from Denver to Seattle
- Airline:
- Southwest
- RT/OW
- Round Trip
- Number of Stops:
- No stops
- Date of Flight:
- July 2010
- Seat Class:
- economy
Not happy about the hour and a half delay. Missed our dinner reservations in Seattle, too dark for a view of anything and missed the sunset over the bay! (the whole reason we booked at this particular time of day!
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“Great flight for a great price”
Flight from Denver to Seattle
- Airline:
- Southwest
- RT/OW
- Round Trip
- Number of Stops:
- 1 stop in Salt Lake City, Utah
- Date of Flight:
- June 2010
- Seat Class:
- economy
One of the only airlines with no fees for bags and even gives a bag of peanuts!! Everyone of the people we dealt with were friendly and helpful. I look forward to flying Southwest again.
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“Frontier equaled its usual excellence”
Flight from Denver to Seattle
- Airline:
- Frontier
- RT/OW
- Round Trip
- Number of Stops:
- No stops
- Date of Flight:
- April 2010
- Seat Class:
- economy
Frontier used a A-320 aircraft. Clean, comfortable. Airport and flight staff are competent and gracious. Flight arrived 20 minutes early. Same experience on my return to Denver in early May. I've been concerned that with the takeover by Republic, that their service would decline. So far, I can't complain about anything. I will continue to use Frontier whenever possible. Southwest has a formidable competitor in Frontier and while I wish that Republic didn't feel the need to move some jobs to Indianapolis and Milwaukee, only my ego has been bruised.
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