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$39 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 8/20. 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
Çar 6/19
Çar 6/26

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In the last 7 days travelers have searched 41,611,298 times on KAYAK, and here is why:

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Good to know

Low season

January

High season

July

Cheapest flight

$39
Best time to beat the crowds with an average 19% drop in price.
Most popular time to fly with an average 20% 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, +61 more

ANA, Aer Lingus, +62 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, +61 more

ANA, Aer Lingus, +62 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

8/19Pzt
nonstopFrontier
3h 02mDEN-SEA
9/16Pzt
nonstopFrontier
2h 43mSEA-DEN
$80
6/5Çar
nonstopFrontier
3h 00mDEN-SEA
6/11Sal
nonstopFrontier
2h 58mSEA-DEN
$81
6/17Pzt
nonstop
3h 00mDEN-SEA
6/24Pzt
nonstop
2h 40mSEA-DEN
$142
7/18Per
nonstop
3h 00mDEN-SEA
7/26Cum
nonstop
2h 42mSEA-DEN
$155
7/18Per
nonstopSun Country Air
3h 00mDEN-SEA
7/22Pzt
1 stopSun Country Air
14h 44mSEA-DEN
$164
6/15Cmt
nonstopAlaska Airlines
2h 59mDEN-SEA
6/23Paz
nonstopAlaska Airlines
2h 44mSEA-DEN
$187
9/21Cmt
1 stopDelta
9h 36mCOS-SEA
9/23Pzt
1 stopDelta
9h 10mSEA-COS
$188
5/31Cum
1 stopSun Country Air
6h 25mDEN-SEA
6/3Pzt
1 stopSun Country Air
7h 14mSEA-DEN
$194
10/31Per
1 stopAlaska Airlines
7h 44mDEN-SEA
11/7Per
nonstopAlaska Airlines
2h 35mSEA-DEN
$196
7/12Cum
nonstopDelta
3h 01mDEN-SEA
7/16Sal
nonstopDelta
2h 33mSEA-DEN
$217

Search by stops

Search by airline

Search by price

Recent one-way flight deals

8/20Sal
nonstopFrontier
3h 02mDEN-SEA
$39
6/9Paz
nonstopFrontier
3h 00mDEN-SEA
$40
6/2Paz
1 stopSun Country Air
14h 35mDEN-SEA
$79
7/3Çar
nonstopAlaska Airlines
2h 59mDEN-SEA
$89
7/29Pzt
nonstopDelta
2h 56mDEN-SEA
$94
6/21Cum
1 stopSun Country Air
13h 57mDEN-SEA
$101
6/11Sal
1 stopAlaska Airlines
5h 17mDEN-SEA
$103
8/20Sal
1 stopUnited Airlines
6h 46mDEN-SEA
$124
7/16Sal
1 stopUnited Airlines
7h 29mDEN-SEA
$128
5/25Cmt
nonstopDelta
2h 57mDEN-SEA
$154

Search by stops

Search by airline

Search by price

Last minute flights from Colorado to Seattle

Last minute flight, train and bus deals

5/21Sal
multi-stopFrontier
15h 20mDEN-SEA
5/26Paz
nonstopFrontier
2h 52mSEA-DEN
$158
5/22Çar
nonstopFrontier
3h 03mDEN-SEA
5/25Cmt
nonstopFrontier
2h 53mSEA-DEN
$160
5/24Cum
multi-stop
14h 20mDEN-SEA
5/26Paz
nonstop
2h 55mSEA-DEN
$171
5/24Cum
multi-stop
14h 20mDEN-SEA
5/28Sal
nonstop
3h 01mSEA-DEN
$191
5/24Cum
multi-stopSun Country Air
13h 10mDEN-SEA
5/25Cmt
multi-stopSun Country Air
12h 25mSEA-DEN
$224
5/24Cum
multi-stopSun Country Air
13h 10mDEN-SEA
5/26Paz
multi-stopSun Country Air
15h 00mSEA-DEN
$233
5/21Sal
multi-stopUnited Airlines
6h 31mCOS-SEA
5/31Cum
multi-stopUnited Airlines
4h 39mSEA-COS
$256
5/21Sal
nonstopDelta
3h 03mDEN-SEA
5/25Cmt
nonstopDelta
2h 48mSEA-DEN
$287
5/21Sal
multi-stopUnited Airlines
6h 31mCOS-SEA
5/31Cum
multi-stopUnited Airlines
4h 39mSEA-COS
$298
5/21Sal
nonstopDelta
3h 03mDEN-SEA
5/23Per
nonstopDelta
2h 48mSEA-DEN
$582

Search by stops

Search by airline

Search by price

Flights to Seattle

Destination:

Seattle (SEA)United States

Return flight deals:

Seattle - Colorado

Cabin classes:

$212
$298
$342
$81