Find flights
When to book
FAQs & Tips
Direct Flights
Deals

SEA

$45 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 5/19. 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
mié. 5/29
mié. 6/5

Search hundreds of travel sites at once for deals on flights to Seattle

In the last 7 days travelers have searched 43,983,279 times on KAYAK, and here is why:

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

Good to know

Low season

January

High season

July

Cheapest flight

$45
Best time to beat the crowds with an average 20% drop in price.
Most popular time to fly with an average 22% 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, +60 more

ANA, Aer Lingus, +61 more

Tuesday

ANA, Aer Lingus, Aeromexico, +60 more

ANA, Aer Lingus, +61 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, +61 more

ANA, Aer Lingus, +62 more

Sunday

ANA, Aer Lingus, Aeromexico, +59 more

ANA, Aer Lingus, +60 more

See more direct flights

Nonstop returns

Seattle/Tacoma Intl to Colorado

Monday

ANA, Aer Lingus, Aeromexico, +60 more

ANA, Aer Lingus, +61 more

Tuesday

ANA, Aer Lingus, Aeromexico, +60 more

ANA, Aer Lingus, +61 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, +61 more

ANA, Aer Lingus, +62 more

Sunday

ANA, Aer Lingus, Aeromexico, +59 more

ANA, Aer Lingus, +60 more

See more direct flights
See more direct flights

Book cheap flights from Colorado to Seattle

Recent round-trip flight deals

5/25sáb.
nonstopFrontier
3h 02mDEN-SEA
6/1sáb.
nonstopFrontier
2h 53mSEA-DEN
$77
8/7mié.
nonstopFrontier
2h 59mDEN-SEA
8/17sáb.
nonstopFrontier
2h 43mSEA-DEN
$78
8/7mié.
nonstopFrontier
2h 59mDEN-SEA
8/20mar.
nonstopFrontier
2h 48mSEA-DEN
$80
5/18sáb.
nonstopCitizenPlane
3h 02mDEN-SEA
5/19dom.
nonstopCitizenPlane
2h 52mSEA-DEN
$104
5/25sáb.
nonstop
3h 02mDEN-SEA
5/27lun.
1 stop
8h 01mSEA-DEN
$140
6/4mar.
1 stop
5h 17mDEN-SEA
6/11mar.
nonstop
3h 01mSEA-DEN
$143
5/30jue.
1 stopAlaska Airlines
5h 17mDEN-SEA
6/2dom.
nonstopAlaska Airlines
2h 47mSEA-DEN
$187
10/5sáb.
1 stopAmerican Airlines
6h 04mDEN-SEA
10/7lun.
1 stopAmerican Airlines
7h 27mSEA-DEN
$196
5/30jue.
1 stopAlaska Airlines
5h 17mDEN-SEA
6/1sáb.
1 stopAlaska Airlines
6h 45mSEA-DEN
$198
5/9jue.
1 stopAmerican Airlines
6h 22mDEN-SEA
5/13lun.
1 stopAmerican Airlines
8h 24mSEA-DEN
$230

Search by stops

Search by airline

Search by price

Recent one-way flight deals

5/19dom.
nonstopFrontier
3h 03mDEN-SEA
$45
5/11sáb.
nonstopFrontier
3h 10mDEN-SEA
$48
6/7vie.
nonstopDelta
3h 06mDEN-SEA
$89
6/6jue.
1 stopSun Country Air
13h 43mDEN-SEA
$94
9/11mié.
1 stopAmerican Airlines
8h 30mDEN-SEA
$98
6/7vie.
1 stopAlaska Airlines
5h 17mDEN-SEA
$99
6/11mar.
1 stopSun Country Air
7h 00mDEN-SEA
$101
6/29sáb.
nonstopDelta
3h 06mDEN-SEA
$109
5/11sáb.
1 stopAmerican Airlines
6h 22mDEN-SEA
$116
5/28mar.
1 stopAlaska Airlines
25h 12mDEN-SEA
$167

Search by stops

Search by airline

Search by price

Last minute flights from Colorado to Seattle

Last minute flight, train and bus deals

5/3vie.
nonstopFrontier
3h 09mDEN-SEA
5/11sáb.
nonstopFrontier
2h 47mSEA-DEN
$131
5/3vie.
nonstopFrontier
3h 09mDEN-SEA
5/11sáb.
nonstopFrontier
2h 47mSEA-DEN
$133
5/2jue.
multi-stop
10h 41mDEN-SEA
5/30jue.
multi-stop
6h 02mSEA-DEN
$239
5/3vie.
multi-stopAmerican Airlines
9h 15mDEN-SEA
5/11sáb.
multi-stopAmerican Airlines
5h 28mSEA-DEN
$246
4/30mar.
nonstop
2h 54mDEN-SEA
5/2jue.
nonstop
2h 47mSEA-DEN
$253
4/30mar.
nonstopDelta
3h 09mDEN-SEA
5/4sáb.
nonstopDelta
2h 39mSEA-DEN
$297
4/30mar.
nonstopUnited Airlines
3h 01mDEN-SEA
5/3vie.
multi-stopUnited Airlines
6h 26mSEA-DEN
$302
4/30mar.
multi-stopUnited Airlines
6h 16mDEN-SEA
5/2jue.
multi-stopUnited Airlines
6h 26mSEA-DEN
$311
5/1mié.
multi-stopDelta
5h 06mDEN-SEA
5/2jue.
multi-stopDelta
5h 24mSEA-DEN
$346
5/1mié.
multi-stopAmerican Airlines
9h 15mDEN-SEA
5/7mar.
multi-stopAmerican Airlines
11h 42mSEA-DEN
$603

Search by stops

Search by airline

Search by price

Flights to Seattle

Destination:

Seattle (SEA)United States

Return flight deals:

Seattle - Colorado

Cabin classes:

$293
$288
$335
$73