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Cheap flights from Colorado to Seattle from $49

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Colorado to Seattle departing on 12/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Colorado to Seattle

Cheap round-trip flights

These are some of the best round-trip flight deals from Colorado to Seattle that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Colorado to Seattle.

Cheap last minute flights

Planning a quick getaway from Colorado to Seattle? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Seattle, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from Colorado to Seattle

Find recent round-trip train or bus tickets from Colorado to Seattle.

All round-trip flight deals to Seattle

The cheapest plane tickets to Seattle found on KAYAK recently.
10:40 am - 12:46 pmDEN-SEA
3h 06mnonstop
1:36 pm - 5:25 pmSEA-DEN
2h 49mnonstop
$72Frontier
Find Deal
Sat, Feb 22 - Wed, Feb 26
11:00 am - 1:10 pmDEN-SEA
3h 10mnonstop
9:36 pm - 1:21 amSEA-DEN
2h 45mnonstop
$78Frontier
Find Deal
Tue, Dec 17 - Tue, Dec 24
6:25 pm - 8:50 pmDEN-SEA
3h 25mnonstop
7:59 pm - 11:51 pmSEA-DEN
2h 52mnonstop
$117Delta
Find Deal
Wed, Dec 18 - Fri, Jan 3
12:45 pm - 6:01 pmDEN-SEA
6h 16m1 stop
7:45 pm - 11:29 pmSEA-DEN
2h 44mnonstop
$126Alaska Airlines
Find Deal
Tue, Dec 17 - Wed, Jan 8
2:55 pm - 6:44 pmDEN-SEA
4h 49m1 stop
8:35 pm - 12:17 amSEA-DEN
2h 42mnonstop
$127Delta
Find Deal
Tue, Feb 4 - Sat, Mar 1
9:55 pm - 11:55 pmDEN-SEA
3h 00mnonstop
10:10 am - 6:25 pmSEA-DEN
7h 15m2 stops
$132Southwest
Find Deal
Fri, Jan 17 - Tue, Jan 21
7:00 am - 9:21 amDEN-SEA
3h 21mnonstop
7:45 pm - 11:29 pmSEA-DEN
2h 44mnonstop
$147Alaska Airlines
Find Deal
Fri, Jan 17 - Wed, Jan 22
8:54 am - 2:25 pmDEN-SEA
6h 31m1 stop
6:42 am - 1:07 pmSEA-DEN
5h 25m1 stop
Thu, Jan 9 - Sun, Jan 12
9:50 pm - 11:59 pmDEN-SEA
3h 09mnonstop
9:36 pm - 1:21 amSEA-DEN
2h 45mnonstop
Sun, Dec 22 - Mon, Dec 30
8:30 am - 3:10 pmDEN-SEA
7h 40m2 stops
6:40 am - 10:15 amSEA-DEN
2h 35mnonstop
$202Southwest
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Tue, Feb 18 - Sat, Feb 22
9:17 am - 11:29 amDEN-SEA
3h 12mnonstop
$49Frontier
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Thu, Dec 12
1:30 pm - 3:35 pmDEN-SEA
3h 05mnonstop
$50Frontier
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Thu, Jan 30
6:25 am - 8:39 amDEN-SEA
3h 14mnonstop
$59Delta
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Sat, Jan 25
7:45 am - 3:21 pmDEN-SEA
8h 36m1 stop
$64United Airlines
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Mon, Dec 16
6:29 pm - 12:28 amDEN-SEA
6h 59m1 stop
$68Delta
Find Deal
Thu, Dec 19
6:00 am - 11:12 amDEN-SEA
6h 12m1 stop
$82United Airlines
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Wed, Mar 5
10:50 pm - 12:50 amDEN-SEA
3h 00mnonstop
$109Southwest
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Sun, Dec 22
9:40 am - 4:35 pmDEN-SEA
7h 55m2 stops
$143Southwest
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Mon, Jan 27
2:24 pm - 8:14 pmDEN-SEA
6h 50m1 stop
$148American Airlines
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Fri, Dec 6
2:44 pm - 8:20 pmDEN-SEA
6h 36m1 stop
$158American Airlines
Find Deal
Wed, Nov 27
9:00 am - 11:11 amDEN-SEA
3h 11mnonstop
9:09 am - 12:54 pmSEA-DEN
2h 45mnonstop
$196Frontier
Find Deal
Mon, Nov 25 - Tue, Nov 26
5:30 am - 7:41 amDEN-SEA
3h 11mnonstop
9:09 am - 12:54 pmSEA-DEN
2h 45mnonstop
$201Frontier
Find Deal
Sat, Nov 23 - Tue, Nov 26
6:05 am - 8:20 amDEN-SEA
3h 15mnonstop
7:50 pm - 11:31 pmSEA-DEN
2h 41mnonstop
$272Delta
Find Deal
Tue, Nov 26 - Tue, Dec 3
9:00 am - 11:11 amDEN-SEA
3h 11mnonstop
12:59 pm - 4:43 pmSEA-DEN
2h 44mnonstop
Mon, Nov 25 - Thu, Nov 28
5:29 am - 9:39 amDEN-SEA
5h 10m1 stop
7:50 pm - 11:31 pmSEA-DEN
2h 41mnonstop
$302Delta
Find Deal
Tue, Nov 26 - Tue, Dec 3
6:00 am - 8:05 amDEN-SEA
3h 05mnonstop
9:09 am - 12:54 pmSEA-DEN
2h 45mnonstop
Fri, Nov 22 - Sun, Nov 24
5:05 pm - 11:10 pmDEN-SEA
7h 05m1 stop
9:00 am - 5:40 pmSEA-DEN
7h 40m1 stop
$341Southwest
Find Deal
Tue, Nov 26 - Tue, Dec 3
7:15 am - 2:11 pmDEN-SEA
7h 56m1 stop
6:16 am - 3:13 pmSEA-DEN
7h 57m1 stop
$356American Airlines
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Sat, Nov 23 - Wed, Nov 27
4:55 pm - 11:30 pmDEN-SEA
7h 35m2 stops
9:00 am - 5:40 pmSEA-DEN
7h 40m1 stop
$366Southwest
Find Deal
Tue, Nov 26 - Tue, Dec 3
6:00 am - 1:10 pmCOS-SEA
8h 10m1 stop
7:20 am - 3:53 pmSEA-COS
7h 33m1 stop
$396American Airlines
Find Deal
Sun, Nov 24 - Tue, Nov 26
11:00 am - 1:10 pmDEN-SEA
3h 10mnonstop
9:36 pm - 1:21 amSEA-DEN
2h 45mnonstop
$67Frontier
Find Deal
Tue, Dec 17 - Tue, Dec 24
10:40 am - 12:46 pmDEN-SEA
3h 06mnonstop
1:36 pm - 5:25 pmSEA-DEN
2h 49mnonstop
$72Frontier
Find Deal
Sat, Feb 22 - Wed, Feb 26
6:05 am - 8:20 amDEN-SEA
3h 15mnonstop
8:25 pm - 12:15 amSEA-DEN
2h 50mnonstop
$117Delta
Find Deal
Wed, Dec 18 - Sun, Jan 5
8:55 pm - 10:55 pmDEN-SEA
3h 00mnonstop
5:00 am - 8:35 amSEA-DEN
2h 35mnonstop
$118Southwest
Find Deal
Thu, Dec 12 - Sun, Dec 15
9:50 pm - 11:59 pmDEN-SEA
3h 09mnonstop
8:19 pm - 11:59 pmSEA-DEN
2h 40mnonstop
$147Alaska Airlines
Find Deal
Mon, Dec 23 - Mon, Dec 30
9:50 pm - 11:59 pmDEN-SEA
3h 09mnonstop
7:45 pm - 11:29 pmSEA-DEN
2h 44mnonstop
$152Alaska Airlines
Find Deal
Sun, Dec 22 - Fri, Dec 27
9:50 pm - 11:59 pmDEN-SEA
3h 09mnonstop
9:36 pm - 1:21 amSEA-DEN
2h 45mnonstop
Sun, Dec 22 - Sat, Jan 4
10:50 pm - 12:50 amDEN-SEA
3h 00mnonstop
5:00 am - 8:35 amSEA-DEN
2h 35mnonstop
$168Southwest
Find Deal
Sun, Dec 22 - Thu, Jan 2
9:50 pm - 11:59 pmDEN-SEA
3h 09mnonstop
9:36 pm - 1:21 amSEA-DEN
2h 45mnonstop
Thu, Dec 19 - Mon, Dec 23
7:45 pm - 10:10 pmDEN-SEA
3h 25mnonstop
7:55 pm - 11:44 pmSEA-DEN
2h 49mnonstop
$177Delta
Find Deal
Tue, Dec 10 - Sun, Dec 15

Frontier flights from Colorado to Seattle

Our best Frontier deals on Colorado to Seattle flight tickets
Frontier
Feb 22
DEN10:40 amDenver Intl
3h 06m
SEA12:46 pmSeattle/Tacoma Intl
Feb 26
SEA1:36 pmSeattle/Tacoma Intl
2h 49m
DEN5:25 pmDenver Intl
Frontier
Dec 17
DEN11:00 amDenver Intl
3h 10m
SEA1:10 pmSeattle/Tacoma Intl
Dec 24
SEA9:36 pmSeattle/Tacoma Intl
2h 45m
DEN1:21 amDenver Intl
Frontier
Dec 17
DEN11:00 amDenver Intl
3h 10m
SEA1:10 pmSeattle/Tacoma Intl
Jan 3
SEA9:36 pmSeattle/Tacoma Intl
2h 45m
DEN1:21 amDenver Intl

Southwest flights from Colorado to Seattle

Our best Southwest deals on Colorado to Seattle flight tickets
Southwest
Jan 17
DEN9:55 pmDenver Intl
3h 00m
SEA11:55 pmSeattle/Tacoma Intl
Jan 21
SEA10:10 amSeattle/Tacoma Intl
7h 15m
2 stops
DEN6:25 pmDenver Intl
Southwest
Feb 18
DEN8:30 amDenver Intl
7h 40m
2 stops
SEA3:10 pmSeattle/Tacoma Intl
Feb 22
SEA6:40 amSeattle/Tacoma Intl
2h 35m
DEN10:15 amDenver Intl
Southwest
Dec 10
DEN2:35 pmDenver Intl
8h 40m
2 stops
SEA10:15 pmSeattle/Tacoma Intl
Dec 13
SEA5:00 amSeattle/Tacoma Intl
2h 35m
DEN8:35 amDenver Intl

See travel insights to Seattle from

How to get the cheapest flight ticket from Colorado to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Seattle?

In general, April is the cheapest month to fly from Colorado to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $136. If you don’t want to visit Seattle in April, then you should wait until February to fly from Colorado, when ticket prices are also cheap, with an average price of $138.

What is the cheapest day to depart on your flight to Seattle?

On average, the least expensive day to fly to Seattle from Colorado is on a Saturday. momondo users have found tickets for Saturday departures for as low as $168. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from Colorado because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $202.

What is the cheapest time of day to depart on your flight to Seattle?

Flying to Seattle from Colorado in the evening is the least expensive time of day to depart. momondo users have found prices as low as $174 when looking at flights departing in the evening. Flights to Seattle are more costly in the morning, with an average ticket price of $178. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Colorado to Seattle/Tacoma Intl flight route?

Fly from Denver Intl to Seattle/Tacoma Intl for the best Colorado - Seattle/Tacoma Intl flight prices

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

You are more likely to see cheaper flights to Seattle from Colorado when booking 27 days ahead of your departure date. In general, you can expect to find flights to Seattle for around $171 when searching 27 days out. Keep in mind that you might be able to find cheaper flights to Seattle at any time. In fact, our users found flights for as low as $129 in the past 72 hours.

What cabin class options are available on Colorado to Seattle/Tacoma Intl flights?

There are 4 cabin classes available to choose from on Colorado to Seattle/Tacoma Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Colorado to Seattle flights?

You could potentially save up to 89% on your flight if you consider stops on a Colorado to Seattle flight.

Cheap Colorado to Seattle flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Colorado to Seattle

Best Price Found

$49

Fastest flight time

2h 48m

Direct flights

Every day

Airports in Seattle

1 airport
The best one-way flight to Seattle from Colorado in the past 72 hours is $49. The best round-trip flight deal from Colorado to Seattle found on momondo in the last 72 hours is $72.
The fastest flight from Colorado to Seattle takes 2h 48m
Direct flights go from Colorado to Seattle every day.
There is 1 airport near Seattle: Seattle/Tacoma Intl (SEA)

  • When did momondo last update prices for flights from Colorado to Seattle/Tacoma Intl Airport?

    Prices for flights from Colorado to Seattle/Tacoma Intl Airport were last updated today.

  • How many operators does momondo search for flights from Colorado to Seattle/Tacoma Intl Airport?

  • How old do you have to be to fly from Colorado to Seattle/Tacoma Intl Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Colorado to Seattle/Tacoma Intl Airport.

  • What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

    The travel and health documents required for your trip to Seattle/Tacoma Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Seattle/Tacoma Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Colorado to Seattle?


Best airlines flying from Colorado to Seattle

Compare and see reviews for airlines that fly from Colorado to Seattle with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $55Free CancellationRating
6.1
3,536 reviews
Search Frontier flights
DeltaPriceFrom $88Free CancellationRating
8.0
8,755 reviews
Search Delta flights
Alaska AirlinesPriceFrom $119Free CancellationRating
8.0
9,464 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $136Free CancellationRating
7.4
9,172 reviews
Search United Airlines flights
SouthwestPriceFrom $140Free CancellationRating
8.1
5,005 reviews
Search Southwest flights
American AirlinesPriceFrom $196Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Colorado to Seattle?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Colorado to Seattle for you.

Can I find flights from Colorado to Seattle with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Colorado to Seattle flights to just show those with flexible booking policies.

How can momondo help me find flights from Colorado to Seattle?

Once you have performed a search for Colorado to Seattle flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Colorado to Seattle right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Seattle from Colorado. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.


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