How popular is this Seattle to Colorado flight route?

The Seattle/Tacoma Intl to Colorado flight path was viewed by 322 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

What are the cheapest airlines to fly from Seattle to Colorado one-way?

$60 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Delta and Alaska Airlines, with prices starting from $79 and $89, respectively.

What is the cheapest month to book a flight from Seattle to Colorado?

Currently, October is the cheapest month in which you can book a flight from Seattle to Colorado (average of $197). Flying from Seattle to Colorado in March is currently the most expensive (average of $278). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Weekly flight availability from Seattle to Colorado

The most flights from SEA to USCO are scheduled on a Sunday (36 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (12 on average).

In terms of precipitation, rainfall in Colorado ranges from 0.5 - 2.3 inches per month. May is typically the wettest month, when rainfall can reach 2.3 in. January is typically the driest time to visit Colorado when rainfall is around 0.5 in.

If weather is an important factor for your trip to Colorado, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

What are the most popular routes from Seattle to Colorado?

The most popular flight routes from Seattle to Colorado are Seattle/Tacoma Intl - Denver Intl, Seattle/Tacoma Intl - Aspen Pitkin County and Seattle/Tacoma Intl - Montrose County.

What are the cheapest flights from Seattle to Colorado?

On average you can expect to pay $752 for a flight from Seattle to Colorado. The cheapest flight overall is $89 while the most popular route, (Seattle/Tacoma Intl - Denver Intl) is currently priced at $105.

What are the most reliable airlines from Seattle to Colorado?

The top 3 most reliable airlines when flying from Seattle to Colorado are United Airlines (95%), Japan Airlines (93%) and Copa Airlines (93%).

What are the most popular airlines that fly from Seattle to Colorado?

When booking a flight from Seattle to Colorado, you may want to consider flying on Alaska Airlines, Delta or Frontier as they are the most popular for this route.

How far in advance should I book a flight from Seattle to Colorado?

To save on the cost of your flight from Seattle to Colorado, book at least 57 days before your planned departure. Booking around this time can save you about 71% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $167 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $228.

What is the cheapest month to fly from Seattle to Colorado?

Flights from Seattle to Colorado lean towards being more expensive in December. Prices are generally better when you fly from Seattle to Colorado in March, with the cheapest ticket starting at $53.

What is the cheapest time of day to fly from SEA to CO?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Seattle to Colorado as you normally would.

What airport do you fly from for flights from Seattle to Colorado?

For a flight from Seattle to Colorado, you will be flying from Seattle/Tacoma Intl. Seattle/Tacoma Intl (SEA) is just 11.4 mi from the center of the city.

Can I find deals for flights from Seattle to Colorado that include hotel bookings?

Yes. In addition to deals on Seattle to Colorado flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Seattle to Colorado?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Colorado.

Can I find deals for business class flights from Seattle to Colorado?

Yes. Cheapflights offers flight deals from Seattle to Colorado by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$60+ Flights from Seattle to Colorado

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from Seattle to Colorado with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Seattle to Colorado

Round-trip from	$102 (Cheapflightsfares)
One-way from	$60 (CheapOair)

From Seattle/Tacoma Intl to Colorado

Search Deals

One-way flight from Seattle/Tacoma Intl to Colorado

Search Deals

Find flight deals from Seattle to Colorado

Cheapest flights from Seattle to Colorado
Explore the most affordable flight options available from Seattle to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 13, 2025.

Thu 1/304:35 pmSEA - DEN

1 stop5h 58mFrontier

Sun 2/21:40 pmDEN - SEA

Nonstop3h 05mFrontier

Deal found 1/13

$102

Mon 2/103:15 pmSEA - DEN

Nonstop2h 47mMultiple Airlines

Wed 2/127:00 amDEN - SEA

Nonstop3h 19mMultiple Airlines

Deal found 1/13

$143

Sat 2/157:55 pmSEA - DEN

Nonstop2h 47mDelta

Tue 2/186:25 amDEN - SEA

Nonstop3h 14mDelta

Deal found 1/13

$157

Wed 2/1212:35 pmSEA - DEN

Nonstop2h 42mUnited Airlines

Wed 2/196:00 amDEN - SEA

1 stop6h 12mUnited Airlines

Deal found 1/11

$173

Fri 2/77:10 pmSEA - EGE

1 stop12h 16mFrontier

Sun 2/93:28 pmEGE - SEA

1 stop23h 57mFrontier

Deal found 1/12

$179

Mon 3/248:20 pmSEA - DEN

Nonstop2h 38mAlaska Airlines

Sat 3/297:00 amDEN - SEA

Nonstop3h 07mAlaska Airlines

Deal found 1/12

$187

Wed 2/512:45 amSEA - COS

1 stop7h 32mAmerican Airlines

Wed 2/125:03 pmCOS - SEA

1 stop7h 28mAmerican Airlines

Deal found 1/13

$201

Thu 2/275:15 amSEA - GJT

1 stop13h 59mMultiple Airlines

Thu 3/68:54 pmGJT - SEA

1 stop15h 52mMultiple Airlines

Deal found 1/12

$208

Thu 2/66:00 pmSEA - COS

1 stop4h 59mUnited Airlines

Wed 2/1211:38 amCOS - SEA

2 stops8h 30mUnited Airlines

Deal found 1/12

$208

Wed 2/512:25 pmSEA - DEN

2 stops7h 20mSouthwest

Sun 2/910:50 amDEN - SEA

Nonstop3h 00mSouthwest

Deal found 1/12

$233

Mon 2/246:15 amSEA - HDN

1 stop8h 56mUnited Airlines

Wed 2/263:32 pmHDN - SEA

1 stop6h 29mUnited Airlines

Deal found 1/13

$259

Fri 1/247:10 pmSEA - EGE

1 stop12h 16mMultiple Airlines

Sun 1/266:51 pmEGE - SEA

Nonstop3h 13mMultiple Airlines

Deal found 1/12

$273

Best flights from Seattle to Colorado
Discover carefully curated flight deals from Seattle to Colorado that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated January 13, 2025.

Thu 1/304:35 pmSEA - DEN

1 stop5h 58mFrontier

Sun 2/21:40 pmDEN - SEA

Nonstop3h 05mFrontier

Deal found 1/13

$102

Mon 2/103:15 pmSEA - DEN

Nonstop2h 47mMultiple Airlines

Wed 2/127:00 amDEN - SEA

Nonstop3h 19mMultiple Airlines

Deal found 1/13

$143

Sat 2/157:55 pmSEA - DEN

Nonstop2h 47mDelta

Tue 2/186:25 amDEN - SEA

Nonstop3h 14mDelta

Deal found 1/13

$157

Wed 2/1212:35 pmSEA - DEN

Nonstop2h 42mUnited Airlines

Wed 2/196:00 amDEN - SEA

1 stop6h 12mUnited Airlines

Deal found 1/11

$173

Mon 3/248:20 pmSEA - DEN

Nonstop2h 38mAlaska Airlines

Sat 3/297:00 amDEN - SEA

Nonstop3h 07mAlaska Airlines

Deal found 1/12

$187

Wed 2/512:45 amSEA - COS

1 stop7h 32mAmerican Airlines

Wed 2/125:03 pmCOS - SEA

1 stop7h 28mAmerican Airlines

Deal found 1/11

$203

Wed 2/512:25 pmSEA - DEN

2 stops7h 20mSouthwest

Sun 2/910:50 amDEN - SEA

Nonstop3h 00mSouthwest

Deal found 1/12

$233

Fri 2/77:10 pmSEA - EGE

1 stop12h 16mFrontier

Sun 2/93:28 pmEGE - SEA

1 stop23h 57mFrontier

Deal found 1/12

$179

Thu 2/275:15 amSEA - GJT

1 stop13h 59mMultiple Airlines

Thu 3/68:54 pmGJT - SEA

1 stop15h 52mMultiple Airlines

Deal found 1/12

$208

Thu 2/66:00 pmSEA - COS

1 stop4h 59mUnited Airlines

Wed 2/1211:38 amCOS - SEA

2 stops8h 30mUnited Airlines

Deal found 1/12

$208

Mon 2/246:15 amSEA - HDN

1 stop8h 56mUnited Airlines

Wed 2/263:32 pmHDN - SEA

1 stop6h 29mUnited Airlines

Deal found 1/13

$259

Wed 2/265:05 pmSEA - GJT

1 stop4h 30mDelta

Wed 3/51:25 pmGJT - SEA

1 stop4h 15mDelta

Deal found 1/12

$289

Last-minute flights from Seattle to Colorado
Discover last-minute flight deals from Seattle to Colorado. Data last updated January 13, 2025 and is based on user searches.

Sat 1/185:00 amSEA - COS

1 stop4h 53mUnited Airlines

Mon 1/205:15 pmCOS - SEA

1 stop6h 54mUnited Airlines

Deal found 1/11

$507

Sun 1/198:00 amSEA - HDN

Nonstop2h 18mAlaska Airlines

Sun 1/2611:58 amHDN - SEA

Nonstop2h 58mAlaska Airlines

Deal found 1/12

$377

Tue 1/213:18 pmSEA - DEN

Nonstop2h 42mUnited Airlines

Wed 1/224:10 pmDEN - SEA

Nonstop3h 05mUnited Airlines

Deal found 1/12

$337

Wed 1/229:00 amSEA - HDN

1 stop4h 27mUnited Airlines

Mon 1/274:59 pmHDN - SEA

1 stop6h 31mUnited Airlines

Deal found 1/12

$293

Wed 1/2212:45 amSEA - DEN

1 stop7h 46mAmerican Airlines

Mon 1/2711:24 amDEN - SEA

1 stop9h 36mAmerican Airlines

Deal found 1/13

$690

Thu 1/233:15 pmSEA - DEN

Nonstop2h 47mFrontier

Wed 1/296:00 amDEN - SEA

1 stop28h 40mFrontier

Deal found 1/12

$166

Thu 1/233:15 pmSEA - DEN

Nonstop2h 47mMultiple Airlines

Sat 2/112:04 pmDEN - SEA

Nonstop3h 13mMultiple Airlines

Deal found 1/12

$258

Thu 1/237:55 pmSEA - DEN

Nonstop2h 47mDelta

Wed 1/296:25 amDEN - SEA

Nonstop3h 14mDelta

Deal found 1/12

$307

Thu 1/2312:25 pmSEA - DEN

2 stops7h 20mSouthwest

Fri 1/245:35 pmDEN - SEA

1 stop5h 55mSouthwest

Deal found 1/11

$388

Thu 1/2311:59 pmSEA - ASE

1 stop9h 05mAmerican Airlines

Mon 1/271:07 pmASE - SEA

1 stop6h 43mAmerican Airlines

Deal found 1/13

$459

Thu 1/235:15 pmSEA - ASE

2 stops16h 40mUnited Airlines

Mon 1/275:02 pmASE - SEA

1 stop7h 07mUnited Airlines

Deal found 1/13

$582

Thu 1/2312:45 amSEA - GJT

1 stop9h 45mAmerican Airlines

Mon 1/275:00 amGJT - SEA

1 stop6h 53mAmerican Airlines

Deal found 1/13

$648

One-way flights from Seattle to Colorado
Search for one-way flight options from Seattle to Colorado. Find affordable one-way fares based on user searches. Data last updated January 13, 2025.

Sun 1/193:18 pmSEA - EGE

1 stop22h 20mFrontier

Deal found 1/12

$60

Sat 5/32:20 pmSEA - DEN

1 stop7h 22mFrontier

Deal found 1/13

$73

Sat 2/157:55 pmSEA - DEN

Nonstop2h 47mDelta

Deal found 1/13

$79

Tue 3/1112:34 pmSEA - DEN

Nonstop2h 38mAlaska Airlines

Deal found 1/13

$89

Wed 3/53:04 pmSEA - DEN

1 stop6h 24mUnited Airlines

Deal found 1/13

$94

Wed 2/261:30 pmSEA - COS

1 stop4h 20mDelta

Deal found 1/12

$104

Tue 2/2512:43 amSEA - COS

1 stop8h 12mAmerican Airlines

Deal found 1/12

$108

Sun 1/2612:35 pmSEA - HDN

1 stop6h 43mUnited Airlines

Deal found 1/12

$135

Wed 3/58:50 amSEA - DEN

2 stops10h 00mSouthwest

Deal found 1/13

$144

Thu 3/63:45 pmSEA - COS

1 stop7h 14mUnited Airlines

Deal found 1/11

$144

Sun 1/268:00 amSEA - HDN

Nonstop2h 18mAlaska Airlines

Deal found 1/13

$149

Sat 2/16:10 amSEA - DEN

1 stop8h 09mAmerican Airlines

Deal found 1/13

$149

Find flights from Seattle to Colorado within your budget

Fly from

Fly to

Route

Depart

Return

Price

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

Thu 1/30

4:35 pm-11:33 pm

1 stop5h 58m

Denver Intl

Sun 2/2

1:40 pm-3:45 pm

Nonstop3h 05m

$102

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

Mon 2/10

3:15 pm-7:02 pm

Nonstop2h 47m

Denver Intl

Wed 2/12

7:00 am-9:19 am

Nonstop3h 19m

$143

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

Sat 2/15

7:55 pm-11:42 pm

Nonstop2h 47m

Denver Intl

Tue 2/18

6:25 am-8:39 am

Nonstop3h 14m

$157

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

Wed 2/12

12:35 pm-4:17 pm

Nonstop2h 42m

Denver Intl

Wed 2/19

6:00 am-11:12 am

1 stop6h 12m

$173

SeattleVail

SEA - EGE

SEAEGE

Seattle/Tacoma Intl

Fri 2/7

7:10 pm-8:26 am

1 stop12h 16m

Vail Eagle County

Sun 2/9

3:28 pm-2:25 pm

1 stop23h 57m

$179

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

Mon 3/24

8:20 pm-11:58 pm

Nonstop2h 38m

Denver Intl

Sat 3/29

7:00 am-9:07 am

Nonstop3h 07m

$187

SeattleColorado Springs

SEA - COS

SEACOS

Seattle/Tacoma Intl

Wed 2/5

12:45 am-9:17 am

1 stop7h 32m

Colorado Springs

Wed 2/12

5:03 pm-11:31 pm

1 stop7h 28m

$203

SeattleGrand Junction

SEA - GJT

SEAGJT

Seattle/Tacoma Intl

Thu 2/27

5:15 am-8:14 pm

1 stop13h 59m

Grand Junction Regnl

Thu 3/6

8:54 pm-11:46 am

1 stop15h 52m

$208

SeattleColorado Springs

SEA - COS

SEACOS

Seattle/Tacoma Intl

Thu 2/6

6:00 pm-11:59 pm

1 stop4h 59m

Colorado Springs

Wed 2/12

11:38 am-7:08 pm

2 stops8h 30m

$208

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

Wed 2/5

12:25 pm-8:45 pm

2 st

$60+ Cheap flights from Seattle (SEA) to Colorado

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/19. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Seattle to Colorado with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Seattle to Colorado

Round-trip from

One-way from

Find flight deals from Seattle to Colorado

Cheapest flights from Seattle to ColoradoExplore the most affordable flight options available from Seattle to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 13, 2025.

Explore the most affordable flight options available from Seattle to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 13, 2025.

Find flights from Seattle to Colorado within your budget

Cheapest flights from Seattle to Colorado
Explore the most affordable flight options available from Seattle to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 13, 2025.