Home >> Fares From A City >> Denver, CO >> Denver, CO (DEN) To Seattle, WA (SEA)
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HOW TO FIND THIS FARE
  • AIRLINES
    Frontier
  • DAYS AVAILABLE FOR TRAVEL
    Tue/Wed/Sat
  • TRAVEL STARTING
    Tue, August 18, 2015
  • TRAVEL ENDING
    Wed, December 16, 2015
Peter T.
Staff Airfare Analyst
Peter's Notes:
Late Summer/Fall travel; Nonstop flights. No min. stay. Fare can be bought one-way for half the lowest roundtrip price. No peak holiday travel at this price.

Some travel dates in late Nov & late Dec/early Jan may be found when booking on third party sites.

When we checked, we found seats at this price departing SEP 23 and returning SEP 30. There are other dates available as well.

Frontier charges a $30-$35 fee each way for carry-on bags larger than 18x14x8 inches and a $20-$30 fee each way for 1st checked bag no larger than 62 linear inches (length + width + depth) and no heavier than 50 pounds. These bag fees apply to online purchases before check-in. Higher fees apply at the airport.

CheapAir charges a $9.95 booking fee.

Seats are not available on all flights or all dates of travel. You may need to have flexible travel dates to find this fare. Fares for travel on holidays may be higher.

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
Reviews for Denver to Seattle
9 Traveler Reviews
"check in with alaska @ denver good, check in with frontier @ seatac grumpy!"
Flight from Denver to Seattle
Airline: Alaska
RT/OW: roundtrip
Date of Flight: April 2011
Seat Class: economy
Check-in Experience
In-flight Service
Seat Comfort
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.
Found by other travelers: Denver, CO (DEN) to Seattle, WA (SEA)
$252
Flight from Denver to Seattle (DEN - SEA)
Sun, Jul 20 - Wed, Jul 23
Alaska
$247
Flight from Denver to Seattle (DEN - SEA)
Wed, Jun 11 - Thu, Jun 12
United
$178
Flight from Denver to Seattle (DEN - SEA)
Thu, Oct 16 - Wed, Oct 22
United
$303
Flight from Denver to Seattle (DEN - SEA)
Tue, Jun 10 - Wed, Jun 11
US Airways
$248
Flight from Denver to Seattle (DEN - SEA)
Fri, Aug 1 - Thu, Aug 7
Alaska
$288
Flight from Denver to Seattle (DEN - SEA)
Fri, Aug 15 - Sun, Aug 17
Frontier
$353
Flight from Denver to Seattle (DEN - SEA)
Thu, Jun 26 - Sat, Jun 28
Alaska
$364
Flight from Denver to Seattle (DEN - SEA)
Sun, Jun 22 - Sun, Jun 29
Alaska
$248
Flight from Denver to Seattle (DEN - SEA)
Tue, Jun 24 - Thu, Jun 26
Alaska
$298
Flight from Denver to Seattle (DEN - SEA)
Mon, Jul 21 - Sun, Jul 27
Frontier
There are approximately 179 flights covering the route from Denver International Airport in Denver to Seattle/Tacoma International Airport in Seattle, provided by as many as 8 airlines.
The following airlines often offer cheap flights from Denver to Seattle
Alaska
Continental
Southwest
United
American
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