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Cheap flights from Seattle to Denver from $28

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Denver departing on 2/26. 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 Seattle to Denver

Cheap round-trip flights

These are some of the best round-trip flight deals from Seattle to Denver 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 Seattle to Denver.

Cheap last minute flights

Planning a quick getaway from Seattle to Denver? 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 Denver, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from Seattle to Denver

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

All round-trip flight deals to Denver

The cheapest plane tickets to Denver found on KAYAK recently.
1:36 pm - 5:25 pmSEA-DEN
2h 49mnonstop
10:30 am - 12:36 pmDEN-SEA
3h 06mnonstop
$73Frontier
Find Deal
Wed, Feb 12 - Wed, Feb 19
3:18 pm - 7:05 pmSEA-DEN
2h 47mnonstop
10:30 am - 12:36 pmDEN-SEA
3h 06mnonstop
$78Frontier
Find Deal
Sun, Feb 9 - Wed, Feb 19
3:15 pm - 6:57 pmSEA-DEN
2h 42mnonstop
6:25 am - 8:39 amDEN-SEA
3h 14mnonstop
$139Delta
Find Deal
Mon, Feb 3 - Sat, Feb 8
3:15 pm - 6:57 pmSEA-DEN
2h 42mnonstop
6:25 am - 8:39 amDEN-SEA
3h 14mnonstop
$148Delta
Find Deal
Sat, Feb 8 - Sat, Feb 15
6:59 pm - 10:36 pmSEA-DEN
2h 37mnonstop
12:04 pm - 2:17 pmDEN-SEA
3h 13mnonstop
$167Alaska Airlines
Find Deal
Sat, Feb 1 - Sat, Feb 8
6:59 pm - 10:36 pmSEA-DEN
2h 37mnonstop
12:04 pm - 2:17 pmDEN-SEA
3h 13mnonstop
$171Alaska Airlines
Find Deal
Sat, Feb 1 - Sat, Feb 8
5:00 am - 8:42 amSEA-DEN
2h 42mnonstop
8:44 pm - 10:44 pmDEN-SEA
3h 00mnonstop
$187United Airlines
Find Deal
Sat, May 3 - Fri, May 9
5:05 am - 8:40 amSEA-DEN
2h 35mnonstop
1:00 pm - 8:50 pmDEN-SEA
8h 50m1 stop
$192Southwest
Find Deal
Fri, Jan 17 - Tue, Jan 21
3:18 pm - 7:00 pmSEA-DEN
2h 42mnonstop
6:00 am - 11:20 amDEN-SEA
6h 20m1 stop
$204United Airlines
Find Deal
Sat, Jan 25 - Sun, Jan 26
10:10 am - 6:25 pmSEA-DEN
7h 15m2 stops
9:55 pm - 11:55 pmDEN-SEA
3h 00mnonstop
$222Southwest
Find Deal
Tue, Feb 11 - Tue, Feb 18
1:36 pm - 5:25 pmSEA-DEN
2h 49mnonstop
$28Frontier
Find Deal
Wed, Feb 26
1:36 pm - 5:25 pmSEA-DEN
2h 49mnonstop
$43Frontier
Find Deal
Sat, Mar 1
8:15 am - 12:10 pmSEA-DEN
2h 55mnonstop
$70Delta
Find Deal
Tue, Jan 7
8:50 am - 12:36 pmSEA-DEN
2h 46mnonstop
$79United Airlines
Find Deal
Tue, Feb 25
3:15 pm - 6:57 pmSEA-DEN
2h 42mnonstop
$89Delta
Find Deal
Sat, Jan 25
7:55 am - 11:42 amSEA-DEN
2h 47mnonstop
$94Alaska Airlines
Find Deal
Mon, Mar 17
2:50 pm - 10:45 pmSEA-DEN
6h 55m1 stop
$98United Airlines
Find Deal
Tue, Mar 18
6:40 am - 1:51 pmSEA-DEN
6h 11m1 stop
$111Alaska Airlines
Find Deal
Mon, Apr 28
12:25 pm - 8:45 pmSEA-DEN
7h 20m2 stops
$139Southwest
Find Deal
Tue, Mar 4
5:55 am - 3:50 pmSEA-DEN
8h 55m2 stops
$143Southwest
Find Deal
Thu, Feb 20
9:36 pm - 1:21 amSEA-DEN
2h 45mnonstop
10:42 pm - 8:57 amDEN-SEA
11h 15m1 stop
$221Frontier
Find Deal
Sun, Dec 22 - Sun, Jan 12
9:36 pm - 1:21 amSEA-DEN
2h 45mnonstop
1:30 pm - 3:41 pmDEN-SEA
3h 11mnonstop
$231Frontier
Find Deal
Sun, Dec 22 - Sun, Jan 12
9:36 pm - 1:21 amSEA-DEN
2h 45mnonstop
8:46 am - 2:17 pmDEN-SEA
6h 31m1 stop
$236Frontier
Find Deal
Mon, Dec 23 - Sun, Jan 12
7:45 pm - 11:29 pmSEA-DEN
2h 44mnonstop
7:00 am - 9:19 amDEN-SEA
3h 19mnonstop
$297Alaska Airlines
Find Deal
Mon, Dec 23 - Tue, Jan 7
7:45 pm - 11:29 pmSEA-DEN
2h 44mnonstop
5:10 pm - 7:19 pmDEN-SEA
3h 09mnonstop
$357Alaska Airlines
Find Deal
Fri, Dec 20 - Wed, Dec 25
1:05 pm - 8:05 pmSEA-DEN
6h 00m1 stop
8:30 am - 3:10 pmDEN-SEA
7h 40m2 stops
$416Southwest
Find Deal
Mon, Dec 23 - Sun, Jan 12
5:05 pm - 11:01 pmSEA-DEN
4h 56m1 stop
8:00 am - 12:44 pmDEN-SEA
5h 44m1 stop
$476Delta
Find Deal
Thu, Dec 19 - Sun, Dec 22
3:11 pm - 12:35 amSEA-DEN
8h 24m1 stop
4:07 pm - 11:50 pmDEN-SEA
8h 43m2 stops
$481United Airlines
Find Deal
Thu, Dec 19 - Mon, Dec 23
5:40 am - 1:55 pmSEA-DEN
7h 15m2 stops
6:20 pm - 12:10 amDEN-SEA
6h 50m1 stop
$486Southwest
Find Deal
Fri, Dec 20 - Mon, Dec 23
4:30 pm - 12:35 amSEA-DEN
7h 05m1 stop
6:00 am - 11:30 amDEN-SEA
6h 30m1 stop
$492United Airlines
Find Deal
Sun, Dec 22 - Wed, Jan 1
1:36 pm - 5:25 pmSEA-DEN
2h 49mnonstop
10:30 am - 12:36 pmDEN-SEA
3h 06mnonstop
$73Frontier
Find Deal
Wed, Feb 12 - Wed, Feb 19
3:18 pm - 7:05 pmSEA-DEN
2h 47mnonstop
10:30 am - 12:36 pmDEN-SEA
3h 06mnonstop
$78Frontier
Find Deal
Sun, Feb 9 - Wed, Feb 19
3:15 pm - 6:57 pmSEA-DEN
2h 42mnonstop
1:10 pm - 3:23 pmDEN-SEA
3h 13mnonstop
$139Delta
Find Deal
Mon, Feb 3 - Sun, Feb 9
12:20 pm - 4:00 pmSEA-DEN
2h 40mnonstop
3:50 pm - 5:50 pmDEN-SEA
3h 00mnonstop
$140Southwest
Find Deal
Thu, Jan 9 - Mon, Jan 13
3:15 pm - 6:57 pmSEA-DEN
2h 42mnonstop
6:25 am - 8:39 amDEN-SEA
3h 14mnonstop
$148Delta
Find Deal
Sat, Feb 8 - Sat, Feb 15
6:59 pm - 10:36 pmSEA-DEN
2h 37mnonstop
12:04 pm - 2:17 pmDEN-SEA
3h 13mnonstop
$167Alaska Airlines
Find Deal
Sat, Feb 1 - Sat, Feb 8
6:59 pm - 10:36 pmSEA-DEN
2h 37mnonstop
12:04 pm - 2:17 pmDEN-SEA
3h 13mnonstop
$171Alaska Airlines
Find Deal
Sat, Feb 1 - Sat, Feb 8
5:00 am - 8:42 amSEA-DEN
2h 42mnonstop
8:44 pm - 10:44 pmDEN-SEA
3h 00mnonstop
$187United Airlines
Find Deal
Sat, May 3 - Fri, May 9
5:05 am - 8:40 amSEA-DEN
2h 35mnonstop
9:55 pm - 11:55 pmDEN-SEA
3h 00mnonstop
$188Southwest
Find Deal
Thu, Jan 16 - Thu, Jan 16
9:00 am - 12:43 pmSEA-DEN
2h 43mnonstop
7:05 pm - 9:11 pmDEN-SEA
3h 06mnonstop
$248United Airlines
Find Deal
Sun, Jan 26 - Sun, Jan 26

Delta flights from Seattle to Denver

Our best Delta deals on Seattle to Denver flight tickets
Delta
Feb 3
SEA3:15 pmSeattle/Tacoma Intl
2h 42m
DEN6:57 pmDenver Intl
Feb 8
DEN6:25 amDenver Intl
3h 14m
SEA8:39 amSeattle/Tacoma Intl
Delta
Feb 8
SEA3:15 pmSeattle/Tacoma Intl
2h 42m
DEN6:57 pmDenver Intl
Feb 15
DEN6:25 amDenver Intl
3h 14m
SEA8:39 amSeattle/Tacoma Intl
Delta
Jan 17
SEA7:55 pmSeattle/Tacoma Intl
2h 47m
DEN11:42 pmDenver Intl
Jan 21
DEN7:50 pmDenver Intl
3h 17m
SEA10:07 pmSeattle/Tacoma Intl

Frontier flights from Seattle to Denver

Our best Frontier deals on Seattle to Denver flight tickets
Frontier
Feb 12
SEA1:36 pmSeattle/Tacoma Intl
2h 49m
DEN5:25 pmDenver Intl
Feb 19
DEN10:30 amDenver Intl
3h 06m
SEA12:36 pmSeattle/Tacoma Intl
Frontier
Feb 9
SEA3:18 pmSeattle/Tacoma Intl
2h 47m
DEN7:05 pmDenver Intl
Feb 19
DEN10:30 amDenver Intl
3h 06m
SEA12:36 pmSeattle/Tacoma Intl
Frontier
Feb 28
SEA3:16 pmSeattle/Tacoma Intl
2h 47m
DEN7:03 pmDenver Intl
Mar 5
DEN10:30 amDenver Intl
3h 06m
SEA12:36 pmSeattle/Tacoma Intl

See travel insights to Denver from

How to get the cheapest flight ticket from Seattle to Denver

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 typical price of a round-trip flight between Seattle and Denver?

What is the cheapest month to fly to Denver?

The cheapest month to fly to Denver from Seattle is in January. Flight prices, which tend to average around $148, are often lower during this time because this is during the off-season. If you don’t want to visit Denver in January, then you should wait until March to fly from Seattle, when ticket prices are also cheap, with an average price of $148.

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

The cheapest day to depart on your flight to Denver is on a Wednesday when prices can be found for as low as $163. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Denver is Sunday, with ticket prices averaging around $213.

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

The cheapest time of day to fly to Denver is in the evening when flights can be purchased for as low as $167. Flights at noon are often more expensive with an average ticket price of $236.

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

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

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

The best time to book a flight to Denver from Seattle is 56 days out, which is when prices tend to be around $175. Don’t hesitate to check prices now though because momondo users recently found tickets for as low as $117.

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

There are 4 cabin classes available to choose from on Seattle/Tacoma Intl to Denver 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 Seattle to Denver flights?

You could potentially save up to 85% on your flight if you consider stops on a Seattle to Denver flight.

How have Seattle to Denver flight prices changed over time?

As of December 2024, prices for Seattle to Denver flights are approximately 41% more expensive when compared to flights at the same time last year.

When to book flights from Seattle to Denver

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Denver according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Seattle to Denver (SEA to DEN) flight deals and tips

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

Best Price Found

$28

Fastest flight time

2h 35m

Direct flights

Every day

Airports in Denver

1 airport
The best one-way flight to Denver from Seattle in the past 72 hours is $28. The best round-trip flight deal from Seattle to Denver found on momondo in the last 72 hours is $73.
The fastest flight from Seattle to Denver takes 2h 35m
Direct flights go from Seattle to Denver every day.
There is 1 airport near Denver: Denver Intl (DEN)

  • How far is Seattle/Tacoma Intl to Denver Intl by plane?

    A flight from Seattle/Tacoma Intl to Denver Intl will travel around 1019.6 mi. Flights usually cover this in 2h 35m, depending on flying conditions and air traffic around both airports.

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

    Prices for flights from Seattle/Tacoma Intl Airport to Denver Intl Airport refresh daily.

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Denver Intl Airport.

  • What documentation or ID do you need to fly to Denver Intl Airport?

    The necessary travel and health documents for your Denver Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

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

  • What is the most popular airline from Seattle to Denver?


Best airlines flying from Seattle to Denver

Compare and see reviews for airlines that fly from Seattle to Denver with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $53Free CancellationRating
6.1
3,479 reviews
Search Frontier flights
DeltaPriceFrom $87Free CancellationRating
8.0
8,604 reviews
Search Delta flights
Alaska AirlinesPriceFrom $117Free CancellationRating
8.0
9,552 reviews
Search Alaska Airlines flights
SouthwestPriceFrom $118Free CancellationRating
8.1
4,848 reviews
Search Southwest flights
United AirlinesPriceFrom $127Free CancellationRating
7.4
9,059 reviews
Search United Airlines flights
  • Southwest Flights From Seattle to Denver

    Southwest operates around 9 flights from Seattle to Denver every week. The average price of these flights found in the last 72 hours has been $204, but momondo users have found Southwest deals from Seattle to Denver from as low as $118 round-trip. Southwest has been scored 8.1/10 in 4,848 reviews.

  • Delta Flights From Seattle to Denver

    Across 8,604 Delta reviews on momondo, the average score is 8.0/10. Delta flies from Seattle to Denver about 4 times each week, with ticket deals ranging from $87 to $236. Price data is based on momondo searches in the last 72 hours.


Why use momondo?

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

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 Seattle to Denver for you.

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

Flights from Seattle to Denver with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo provides multiple filters to help you find the best flight to Denver from Seattle. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes. momondo can track prices for Seattle to Denver flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.


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