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$54 Find cheap flights from Colorado to Seattle

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Seattle departing on 5/15. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
vie. 6/7
vie. 6/14

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Good to know

Low season

January

High season

July

Cheapest flight

$54
Best time to beat the crowds with an average 19% drop in price.
Most popular time to fly with an average 21% increase in price.
Flight from Denver to Seattle

FAQs for booking flights from Colorado to Seattle

  • How does KAYAK find such low prices on flights from Colorado to Seattle?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Colorado to Seattle.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Colorado to Seattle?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle from Colorado is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Colorado to Seattle?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Seattle with an airline and back to Colorado with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Colorado to Seattle?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Seattle from Colorado up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Prefer to fly non-stop from Colorado to Seattle?

Find which airlines fly direct from Colorado to Seattle/Tacoma Intl, which days they fly and book direct flights.

Nonstop departures

Colorado to Seattle/Tacoma Intl

Monday

ANA, Aer Lingus, Aeromexico, +61 more

ANA, Aer Lingus, +62 more

Tuesday

ANA, Aer Lingus, Aeromexico, +61 more

ANA, Aer Lingus, +62 more

Wednesday

ANA, Aer Lingus, Aeromexico, +61 more

ANA, Aer Lingus, +62 more

Thursday

ANA, Aer Lingus, Aeromexico, +60 more

ANA, Aer Lingus, +61 more

Friday

ANA, Aer Lingus, Aeromexico, +60 more

ANA, Aer Lingus, +61 more

Saturday

ANA, Aer Lingus, Aeromexico, +62 more

ANA, Aer Lingus, +63 more

Sunday

ANA, Aer Lingus, Aeromexico, +61 more

ANA, Aer Lingus, +62 more

See more direct flights

Nonstop returns

Seattle/Tacoma Intl to Colorado

Monday

ANA, Aer Lingus, Aeromexico, +61 more

ANA, Aer Lingus, +62 more

Tuesday

ANA, Aer Lingus, Aeromexico, +61 more

ANA, Aer Lingus, +62 more

Wednesday

ANA, Aer Lingus, Aeromexico, +61 more

ANA, Aer Lingus, +62 more

Thursday

ANA, Aer Lingus, Aeromexico, +60 more

ANA, Aer Lingus, +61 more

Friday

ANA, Aer Lingus, Aeromexico, +60 more

ANA, Aer Lingus, +61 more

Saturday

ANA, Aer Lingus, Aeromexico, +62 more

ANA, Aer Lingus, +63 more

Sunday

ANA, Aer Lingus, Aeromexico, +61 more

ANA, Aer Lingus, +62 more

See more direct flights
See more direct flights

Book cheap flights from Colorado to Seattle

Recent round-trip flight deals

8/20mar.
nonstopFrontier
3h 02mDEN-SEA
8/26lun.
nonstopFrontier
2h 43mSEA-DEN
$76
5/25sáb.
nonstopFrontier
3h 05mDEN-SEA
6/1sáb.
nonstopFrontier
2h 53mSEA-DEN
$77
6/2dom.
1 stop
16h 35mDEN-SEA
6/5mié.
nonstop
2h 53mSEA-DEN
$130
5/25sáb.
nonstop
3h 05mDEN-SEA
5/27lun.
1 stop
8h 01mSEA-DEN
$140
6/4mar.
1 stopAlaska Airlines
5h 17mDEN-SEA
6/12mié.
nonstopAlaska Airlines
2h 43mSEA-DEN
$177
5/24vie.
1 stopSun Country Air
13h 10mDEN-SEA
5/26dom.
1 stopSun Country Air
17h 10mSEA-DEN
$187
9/17mar.
1 stopAmerican Airlines
6h 56mCOS-SEA
9/25mié.
1 stopAmerican Airlines
6h 57mSEA-COS
$188
8/16vie.
nonstopAlaska Airlines
2h 59mDEN-SEA
8/20mar.
1 stopAlaska Airlines
4h 34mSEA-DEN
$196
5/25sáb.
1 stopSun Country Air
14h 35mDEN-SEA
5/27lun.
1 stopSun Country Air
8h 01mSEA-DEN
$199
6/5mié.
1 stopAmerican Airlines
6h 29mDEN-SEA
6/12mié.
1 stopAmerican Airlines
5h 52mSEA-DEN
$206

Search by stops

Search by airline

Search by price

Recent one-way flight deals

5/15mié.
nonstopFrontier
3h 10mDEN-SEA
$54
5/20lun.
nonstopFrontier
3h 05mDEN-SEA
$58
6/11mar.
nonstopAlaska Airlines
2h 54mDEN-SEA
$75
6/12mié.
nonstopDelta
3h 05mDEN-SEA
$80
5/24vie.
1 stopSun Country Air
13h 10mDEN-SEA
$94
9/24mar.
1 stopAmerican Airlines
6h 54mCOS-SEA
$94
5/22mié.
1 stopSun Country Air
15h 25mDEN-SEA
$96
6/13jue.
nonstopDelta
3h 06mDEN-SEA
$99
5/30jue.
1 stopAlaska Airlines
5h 17mDEN-SEA
$103
5/18sáb.
1 stopAmerican Airlines
9h 09mDEN-SEA
$120

Search by stops

Search by airline

Search by price

Last minute flights from Colorado to Seattle

Last minute flight, train and bus deals

5/13lun.
nonstopFrontier
3h 09mDEN-SEA
5/21mar.
nonstopFrontier
3h 01mSEA-DEN
$128
5/13lun.
nonstopFrontier
3h 11mDEN-SEA
5/19dom.
nonstopFrontier
2h 55mSEA-DEN
$141
5/9jue.
nonstop
2h 57mDEN-SEA
5/29mié.
nonstop
2h 52mSEA-DEN
$193
5/9jue.
nonstop
2h 57mDEN-SEA
6/2dom.
nonstop
2h 55mSEA-DEN
$212
5/9jue.
nonstopAlaska Airlines
2h 57mDEN-SEA
5/29mié.
multi-stopAlaska Airlines
4h 11mSEA-DEN
$256
5/9jue.
multi-stopAmerican Airlines
9h 09mDEN-SEA
5/29mié.
multi-stopAmerican Airlines
5h 28mSEA-DEN
$281
5/12dom.
multi-stopAlaska Airlines
5h 12mDEN-SEA
5/16jue.
nonstopAlaska Airlines
2h 47mSEA-DEN
$296
5/9jue.
nonstopDelta
3h 03mDEN-SEA
5/13lun.
nonstopDelta
2h 48mSEA-DEN
$297
5/11sáb.
multi-stopAmerican Airlines
6h 22mDEN-SEA
5/14mar.
multi-stopAmerican Airlines
7h 40mSEA-DEN
$298
5/11sáb.
multi-stopDelta
5h 03mDEN-SEA
5/14mar.
nonstopDelta
2h 54mSEA-DEN
$311

Search by stops

Search by airline

Search by price

Flights to Seattle

Destination:

Seattle (SEA)United States

Return flight deals:

Seattle - Colorado

Cabin classes:

$294
$291
$322
$76