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$48 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 6/5. 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
Sun 6/30
Sun 7/7

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In the last 7 days travelers have searched 43,361,115 times on KAYAK, and here is why:

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Good to know

Low season

January

High season

July

Cheapest flight

$48
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, +63 more

ANA, Aer Lingus, +64 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, +63 more

ANA, Aer Lingus, +64 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

6/11Tue
nonstopFrontier
3h 03mDEN-SEA
6/11Tue
nonstopFrontier
2h 59mSEA-DEN
$96
6/13Thu
nonstopFrontier
3h 03mDEN-SEA
6/15Sat
nonstopFrontier
2h 56mSEA-DEN
$97
7/18Thu
nonstop
3h 00mDEN-SEA
7/18Thu
nonstop
2h 47mSEA-DEN
$152
6/22Sat
nonstop
3h 03mDEN-SEA
7/5Fri
1 stop
7h 09mSEA-DEN
$157
8/17Sat
nonstopAlaska Airlines
2h 59mDEN-SEA
8/22Thu
nonstopAlaska Airlines
2h 43mSEA-DEN
$182
8/15Thu
nonstopAlaska Airlines
2h 59mDEN-SEA
8/18Sun
nonstopAlaska Airlines
2h 44mSEA-DEN
$187
10/14Mon
nonstopUnited Airlines
3h 00mDEN-SEA
10/16Wed
1 stopUnited Airlines
6h 33mSEA-DEN
$192
7/8Mon
1 stopSun Country Air
17h 27mDEN-SEA
7/15Mon
1 stopSun Country Air
15h 24mSEA-DEN
$250
6/3Mon
1 stopUnited Airlines
5h 20mCOS-SEA
6/7Fri
1 stopUnited Airlines
4h 18mSEA-COS
$256
7/28Sun
1 stopSun Country Air
28h 56mCOS-SEA
7/31Wed
1 stopSun Country Air
16h 37mSEA-COS
$295

Search by stops

Search by airline

Search by price

Recent one-way flight deals

6/5Wed
nonstopFrontier
3h 00mDEN-SEA
$48
6/11Tue
nonstopFrontier
3h 03mDEN-SEA
$49
7/18Thu
nonstopSun Country Air
3h 00mDEN-SEA
$68
8/3Sat
nonstopAlaska Airlines
2h 59mDEN-SEA
$89
7/4Thu
nonstopAlaska Airlines
2h 56mDEN-SEA
$94
8/14Wed
1 stopUnited Airlines
7h 29mDEN-SEA
$98
6/24Mon
1 stop
11h 02mGJT-SEA
$101
6/6Thu
1 stopUnited Airlines
5h 32mCOS-SEA
$120
6/7Fri
2 stops
22h 59mDEN-SEA
$120
6/5Wed
1 stopSun Country Air
16h 17mDEN-SEA
$125

Search by stops

Search by airline

Search by price

Last minute flights from Colorado to Seattle

Last minute flight, train and bus deals

6/3Mon
nonstopFrontier
3h 05mDEN-SEA
6/11Tue
nonstopFrontier
2h 59mSEA-DEN
$116
6/3Mon
nonstopFrontier
3h 05mDEN-SEA
6/15Sat
nonstopFrontier
2h 56mSEA-DEN
$119
6/3Mon
nonstopFrontier
3h 05mDEN-SEA
6/7Fri
nonstopFrontier
2h 49mSEA-DEN
$131
6/3Mon
nonstop
3h 05mDEN-SEA
6/7Fri
multi-stop
14h 51mSEA-DEN
$199
6/3Mon
multi-stopUnited Airlines
5h 20mCOS-SEA
6/7Fri
multi-stopUnited Airlines
4h 18mSEA-COS
$256
6/1Sat
multi-stopAmerican Airlines
6h 22mDEN-SEA
6/6Thu
multi-stopAmerican Airlines
5h 52mSEA-DEN
$288
6/3Mon
multi-stop
7h 48mDEN-SEA
6/7Fri
multi-stop
8h 57mSEA-DEN
$292
6/3Mon
multi-stopAmerican Airlines
6h 22mDEN-SEA
6/7Fri
multi-stopAmerican Airlines
5h 22mSEA-DEN
$306
5/31Fri
nonstopDelta
3h 03mDEN-SEA
6/3Mon
nonstopDelta
2h 55mSEA-DEN
$307
5/31Fri
multi-stopUnited Airlines
8h 18mDEN-SEA
6/3Mon
multi-stopUnited Airlines
7h 29mSEA-DEN
$326

Search by stops

Search by airline

Search by price

Flights to Seattle

Destination:

Seattle (SEA)United States

Return flight deals:

Seattle - Colorado

Cabin classes:

$260
$377
$327
$83