Cheap flights from Denver to Seattle (DEN - SEA) from $29

This is the cheapest one-way flight price, found on 11/29. Prices may vary by date and flight preferences.
DEN — SEA
Dec 5 — Dec 121

The best prices from Denver Intl to Seattle/Tacoma Intl are usually found in February or January, booked 81 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

Flights from Seattle to Denver

How to find the cheapest flight from Denver (DEN) to Seattle (SEA)

Discover tips and strategies to find the most affordable flight options for your journey from Denver (DEN) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 30, 2023.

Popular in

June

Cheapest in

February

Round-trip from

$237

One-way from

$69
High demand for flights, 30% potential price rise
Best time to find cheap flights, 29% potential price drop
From Denver Intl to Seattle/Tacoma Intl
One-way flight from Denver Intl to Seattle/Tacoma Intl

DEN - SEA

Price

$237 - $458

SEA

Temperature

41 - 66.2 °F

SEA

Rainfall

0.7 - 6.6 inches

What is the cheapest day to fly round-trip from Denver to Seattle?

Users have found that leaving on a Monday can be a cost-effective option. It’s possible to save up to 21% on your flight compared to booking on days when demand is much higher.

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

Find a great deal and save up to 58% by booking at least 31 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Denver to Seattle within the next two weeks, with the cheapest ticket starting at $204.

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

Our data shows that February tends to be the cheapest month to fly to Seattle from Denver. Users have commonly found prices around $208 for the month, but tickets can be as low as $63. Due to multiple factors, prepare for potentially higher prices in June.

When is the cheapest time to fly from Denver to Seattle (DEN - SEA)?

When flying from Denver to Seattle, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 29% versus a flight at noon.

Cheap Frontier flights from Denver to Seattle

Explore cheap flight options specifically provided by Frontier for the route between Denver and Seattle. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,965,316 searches. Data last updated November 30, 2023.
Take a look at some of the lowest-priced Frontier flights heading from Denver to Seattle. Deals update often to give you more flight options matching your criteria
  • One of the most popular airlines traveling from Denver to Seattle is Frontier. Flights from Frontier traveling this route typically cost $237.79 RT. This price is typically 24% cheaper than other airlines that offer Denver to Seattle flights. When booking this route, the cheapest RT price found was $89. Denver Intl Airport is the most common Denver airport to take off from when flying to Seattle. Seattle/Tacoma Intl Airport is the most popular arrival airport in Seattle. When flying from Denver to Seattle, Frontier flights are 13% more popular than any other airline flying that same route.

Cheap Spirit Airlines flights from Denver to Seattle

Explore cheap flight options specifically provided by Spirit Airlines for the route between Denver and Seattle. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,965,316 searches. Data last updated November 30, 2023.
To aid your search, here are some of the cheapest Spirit Airlines flights we've found from Denver to Seattle. If these deals don't fit your criteria, make sure to check back soon as new deals are always added.
  • If you’re traveling from Denver to Seattle, one of the more common airlines traveling that route is Spirit Airlines. Denver to Seattle flights are typically 32% cheaper than other airlines traveling the same route. Flights from Spirit Airlines typically cost $237.81 RT. The cheapest Spirit Airlines flight found for this route was $89. When traveling from Denver to Seattle on Spirit Airlines, the most popular airport to depart from is Denver Intl Airport and the most popular airport to arrive at is Seattle/Tacoma Intl Airport. When flying from Denver to Seattle, Spirit Airlines flights are 11% more popular than any other airline flying that same route.

Cheap Denver to Seattle flights in November & December 2023

Find cheap flight options from Denver to Seattle specifically for the months of November and December 2023. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,965,316 searches. Prices were last updated on November 30, 2023.
Scroll through some of the best deals on flights from Denver to Seattle in 2023. More deals are always being added, so be sure to check back regularly.

Denver to Seattle 2023 flight deals

Discover exclusive flight deals for travel between Denver and Seattle in 2023. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,965,316 searches. Data last updated November 30, 2023.
Scroll through some of the best deals on flights from Denver to Seattle in 2023. More deals are always being added, so be sure to check back regularly.

Non-stop flights to Seattle from Denver

Discover non-stop flight options from Denver to Seattle. Find direct flights with no layovers, providing a convenient travel experience. Explore non-stop flight options based on user searches, and compare prices and availability for your desired travel dates. Over the last 7 days, Cheapflights users made 2,965,316 searches. Data last updated November 30, 2023.
Consider booking one of these non-stop flights heading from Denver to Seattle. Select from other flights from Denver to Seattle by using the search form above.

Denver to Seattle flights leaving soon

Find last-minute flight options from Denver to Seattle for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,965,316 searches. Data last updated November 30, 2023.
Book one of these great deals on flights from Denver to Seattle. Users should be sure to double check the price, date, and time of their last-minute flight.

One-way flights to Seattle from Denver

Search for one-way flight options from Denver to Seattle. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,965,316 searches. Data last updated November 30, 2023.
Users in need of a one-way flight from Denver to Seattle can choose from these deals. Users can also find round-trip Denver to Seattle flights by using the search form above.

Find flights from Denver to Seattle within your budget

Customize your flight search to find flights from Denver to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,965,316 searches. Data last updated November 30, 2023.

Fly from

Any airport

Fly to

Any airport

Budget

$58 - $177

Route

Depart

Return

Price

Denver IntlSeattle/Tacoma Intl

DEN - SEA

DENSEA

Denver Intl

Sat 1/20

Nonstop3h 11m

Seattle/Tacoma Intl

Sat 1/27

Nonstop2h 39m

$58

Denver IntlSeattle/Tacoma Intl

DEN - SEA

DENSEA

Denver Intl

Tue 1/16

Nonstop3h 12m

Seattle/Tacoma Intl

Thu 1/18

Nonstop2h 39m

$68

Denver IntlSeattle/Tacoma Intl

DEN - SEA

DENSEA

Denver Intl

Tue 1/9

1 stop7h 04m

Seattle/Tacoma Intl

Fri 1/12

Nonstop2h 48m

$76

Denver IntlSeattle/Tacoma Intl

DEN - SEA

DENSEA

Denver Intl

Thu 1/25

Nonstop3h 11m

Seattle/Tacoma Intl

Mon 1/29

Nonstop2h 43m

$78

Denver IntlSeattle/Tacoma Intl

DEN - SEA

DENSEA

Denver Intl

Thu 1/4

1 stop13h 58m

Seattle/Tacoma Intl

Mon 1/8

1 stop12h 06m

$81

Denver IntlSeattle/Tacoma Intl

DEN - SEA

DENSEA

Denver Intl

Wed 12/20

Nonstop3h 14m

Seattle/Tacoma Intl

Wed 1/3

1 stop11h 32m

$83

Denver IntlSeattle/Tacoma Intl

DEN - SEA

DENSEA

Denver Intl

Thu 1/4

Nonstop3h 13m

Seattle/Tacoma Intl

Fri 1/5

Nonstop2h 45m

$138

Denver IntlSeattle/Tacoma Intl

DEN - SEA

DENSEA

Denver Intl

Wed 1/3

Nonstop3h 11m

Seattle/Tacoma Intl

Sat 1/6

Nonstop2h 42m

$148

Denver IntlSeattle/Tacoma Intl

DEN - SEA

DENSEA

Denver Intl

Sat 5/11

1 stop6h 04m

Seattle/Tacoma Intl

Wed 5/15

1 stop6h 34m

$177

Flights are sorted by cheapest first

Deals found on 11/29

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated November 30, 2023.
Read through reviews of airlines operating flights from Denver to Seattle, such as Frontier, Spirit Airlines and Delta. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very good
1,399 reviews

Boarding

8.3

Comfort

8.0

Overall

8.0

Food

7.2

Entertainment

7.2

Crew

8.6

Reviews

1 / 10

Maintenance delay, weather delays in DEN and once we arrived in SEA. 3 hour flight resulted in 6+ hours on the plane.

8.0
Very good
1,399 reviews
8.0
Very good
1,399 reviews

Boarding

8.3

Comfort

8.0

Overall

8.0

Food

7.2

Entertainment

7.2

Crew

8.6

Reviews

1 / 10

Maintenance delay, weather delays in DEN and once we arrived in SEA. 3 hour flight resulted in 6+ hours on the plane.

7.9
Good
3,035 reviews
8.0
Very good
1,399 reviews

Boarding

8.3

Comfort

8.0

Overall

8.0

Food

7.2

Entertainment

7.2

Crew

8.6

Reviews

1 / 10

Maintenance delay, weather delays in DEN and once we arrived in SEA. 3 hour flight resulted in 6+ hours on the plane.

7.4
Good
1,897 reviews
8.0
Very good
1,399 reviews

Boarding

8.3

Comfort

8.0

Overall

8.0

Food

7.2

Entertainment

7.2

Crew

8.6

Reviews

1 / 10

Maintenance delay, weather delays in DEN and once we arrived in SEA. 3 hour flight resulted in 6+ hours on the plane.

7.2
Good
2,645 reviews
8.0
Very good
1,399 reviews

Boarding

8.3

Comfort

8.0

Overall

8.0

Food

7.2

Entertainment

7.2

Crew

8.6

Reviews

1 / 10

Maintenance delay, weather delays in DEN and once we arrived in SEA. 3 hour flight resulted in 6+ hours on the plane.

6.3
Okay
1,495 reviews
8.0
Very good
1,399 reviews

Boarding

8.3

Comfort

8.0

Overall

8.0

Food

7.2

Entertainment

7.2

Crew

8.6

Reviews

1 / 10

Maintenance delay, weather delays in DEN and once we arrived in SEA. 3 hour flight resulted in 6+ hours on the plane.

Related info for your journey

Find useful and relevant information for your journey from Denver to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airports do I use to fly from Denver to Seattle?

You will need to book a flight from Denver Intl to Seattle/Tacoma Intl if you want to fly from Denver to Seattle. At least 7 different airlines have flights from Denver Intl (DEN) to Seattle/Tacoma Intl (SEA) on a regular basis. There are 29 flights to Seattle from the Denver airport per day. If you manage to book one that is nonstop, then you can expect the flight time from DEN to SEA to be around 2h 53m.

Can I find flights from Denver to Seattle for under $100 on Cheapflights?

Yes, there are multiple flights from Denver to Seattle for under $100. The cheapest flight booked recently is on Frontier for just $58, but on average you can expect to pay $88.

Are there nonstop flights from Denver to Seattle for under $100 on Cheapflights?

Cheapflights has at least 20 direct flights from Denver to Seattle under $100. A good price for a nonstop flight from Denver to Seattle is less than $102.

Are there last-minute flights available from Denver to Seattle for under $100?

There are currently 20+ open flights from Denver to Seattle within the next 7 days for less than $100.

What days are nonstop flights available from Denver to Seattle?

Nonstop flights can be found on the following days: Sunday, Monday, Tuesday, Thursday, Friday, Saturday.

How popular is this Denver to Seattle flight route?

How many flights depart from Denver to Seattle on average per day?

29 flight departures from Denver to Seattle per day on average.
Early Morning (Midnight to 6am) - 24% of flight departures
Morning (6am - Noon) - 21% of flight departures
Afternoon (Noon - 6pm) - 17% of flight departures
Evening (6pm - Midnight) - 38% of flight departures

How long is the flight from Denver to Seattle?

Airlines like Frontier and Spirit Airlines fly from Denver to Seattle in about 3h 11m. The time it takes to get you to your destination can typically vary by up to 10h 47m. Airlines will cover a distance of 1028 mi. Both multi-stop and nonstop flights can be found to your destination and back.

What are the cheapest airlines flying from Denver to Seattle round-trip?

Frontier, at $58, was found to be the cheapest airline from Denver to Seattle. An alternate airline flying to your destination would be Spirit Airlines. Users have found that Frontier is 72% cheaper than the other options available to this destination.

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

For one-way options, check prices for Frontier. According to our data, you can fly for as low as $29. Users have also found prices from $33 and $69 on Spirit Airlines and Delta, respectively.

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

What are the most reliable airlines from Denver to Seattle?

Before booking your flight to Seattle from Denver, check out the most reliable airlines to get you to your destination on time: China Eastern (100%), SWISS (100%), Singapore Airlines( 96%).

What are the cheapest flights from Denver to Seattle?

Looking at all options, your cheapest flight can be booked for $36. While the most popular route (Denver Intl - Seattle/Tacoma Intl) can be booked for $67 on average our data indicates $858 when flying from Denver to Seattle.

What does DEN to SEA mean?

This is defined as Denver Intl Airport (DEN) and Seattle/Tacoma Intl Airport (SEA). Codes like Seattle/Tacoma Intl Airport are often used to just call airports uniquely.

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Fly from Denver to Seattle on these airlines
Choose from the following airlines for your flight from Denver to Seattle. Flights are based on user searches made on Cheapflights and were last updated on November 30, 2023.

Top 6 airlines flying from Denver to Seattle

Discover the top 6 airlines that operate flights from Denver to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,965,316 searches. Data last updated November 30, 2023.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$44Average$139FlexibilityNo cancel feeOn-time65%
Search Spirit Airlines flights
FrontierCheapest$47Average$148FlexibilityNo cancel feeOn-time62%
Search Frontier flights
DeltaCheapest$89Average$238FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Alaska AirlinesCheapest$89Average$238FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
United AirlinesCheapest$99Average$293FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapest$240Average$428FlexibilityNo cancel feeOn-time71%
Search American Airlines flights

Search flights to Seattle by cabin class

Hourly flight availability from Denver to Seattle

Find hourly flight availability from Denver to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 30, 2023.
14%of flight departuresEarly morningMidnight to 6 am
37%of flight departuresMorning6 am to noon
32%of flight departuresAfternoonNoon to 6 pm
17%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

Weekly flight availability from Denver to Seattle

Explore weekly flight availability from Denver to Seattle. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated November 30, 2023.
Sunday27daily flights
Monday37daily flights
Tuesday28daily flights
Wednesday28daily flights
Thursday25daily flights
Friday36daily flights
Saturday26daily flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Denver to Seattle?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Seattle from Denver today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Denver to Seattle?

Cheapflights helps you find that perfect flight to Seattle from Denver by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Denver to Seattle with no change fees?

Need flexible booking options for your flight to Seattle from Denver? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Denver to Seattle become cheaper?

Yes, Cheapflights offers price alerts on Denver to Seattle flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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