Menu

Cheap flights from Denver to Seattle (DEN - SEA)

Know your dates, get live prices in seconds:

From
To
Depart
Return
Any month
Compare vs. Cheapflights |
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime

We work with more than 300 partners to bring you better travel deals

The best prices from Denver to Seattle are usually found in February or January, booked 35 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

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

DEN - SEA
Price
$137 - $227
SEA
Temperature
46.4 - 77 °F
SEA
Rainfall
0.7 - 6.5 inches

Popular in

July

High demand for flights, 25% potential price rise

Cheapest in

February

Best time to find cheap flights, 19% potential price drop

Round-trip from

$137

From Denver to Seattle

One-way from

$49

One-way flight from Denver to Seattle

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest day to fly round-trip from Denver to Seattle?

Flying to your destination on a Saturday can be more expensive, but this shouldn’t discourage you from finding affordable options to get to Seattle. Check prices with Cheapflights to find a great deal for your trip.

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

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 27 days in advance, which can save you up to 58% on flights from Denver to Seattle compared to booking the week you need them. Waiting 27 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $136. For sooner than that we have options available in the next 3 days from $197.

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 at noon, which can drop the price by up to 6% versus a flight in the morning.

Cheap flights from Denver to Seattle in October, November 2020

The best prices found for DEN to SEA flights for October, November
8 Nov - 8 Nov
$62pp
DEN
Denver Intl
Frontier
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Frontier
Non-Stop
DEN
Denver Intl
29 Oct - 1 Nov
$66pp
DEN
Denver Intl
Frontier
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Frontier
Non-Stop
DEN
Denver Intl
1 Nov - 12 Nov
$67pp
DEN
Denver Intl
Frontier
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Frontier
Non-Stop
DEN
Denver Intl

Denver to Seattle 2020 flight deals

Cheap flights to Seattle from Denver found for this year
8 Nov - 8 Nov
$62pp
DEN
Denver Intl
Frontier
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Frontier
Non-Stop
DEN
Denver Intl
29 Oct - 1 Nov
$66pp
DEN
Denver Intl
Frontier
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Frontier
Non-Stop
DEN
Denver Intl
1 Nov - 12 Nov
$67pp
DEN
Denver Intl
Frontier
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Frontier
Non-Stop
DEN
Denver Intl

Non-stop flights to Seattle from Denver

Save time with Denver to Seattle direct flight deals
8 Nov - 8 Nov
$62pp
DEN
Denver Intl
Frontier
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Frontier
Non-Stop
DEN
Denver Intl
29 Oct - 1 Nov
$66pp
DEN
Denver Intl
Frontier
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Frontier
Non-Stop
DEN
Denver Intl
1 Nov - 12 Nov
$67pp
DEN
Denver Intl
Frontier
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Frontier
Non-Stop
DEN
Denver Intl

Last minute flights from Denver to Seattle

Late deals on round-trip flights to Seattle from Denver, departing today and this week
29 Oct - 1 Nov
$66pp
DEN
Denver Intl
Frontier
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Frontier
Non-Stop
DEN
Denver Intl
1 Nov - 12 Nov
$67pp
DEN
Denver Intl
Frontier
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Frontier
Non-Stop
DEN
Denver Intl
30 Oct - 7 Nov
$72pp
DEN
Denver Intl
Multiple Airlines
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Spirit Airlines
 
1 STOP
DEN
Denver Intl

One-way flights to Seattle from Denver

The cheapest one-way flights from Denver to Seattle
8:20 am - 10:23 am
Alaska Airlines
Nonstop
3h 03m
DEN - SEA
Alaska Airlines
2:00 am - 9:02 am
American Airlines
1 Stop
8h 02m
DEN - SEA
American Airlines
2:25 pm - 4:25 pm
Delta
Nonstop
3h 00m
DEN - SEA
Delta
$74
Delta

Related info for your journey

Useful info, stats and facts about Denver to Seattle flights.

Flight FAQs

From Denver to Seattle

Are flight prices decreasing from Denver to Seattle due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Denver and Seattle for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

What safety measures are being taken by airlines flying from Denver Intl to Seattle/Tacoma Intl to control the spread of COVID-19?

Alaska Airlines, Southwest, and Delta are some of the many airlines that have implemented additional safety measures to control the spread of COVID-19. New policies for travelers booking flights from Denver Intl to Seattle/Tacoma Intl include masks being provided and required on board, daily cleaning and sanitization, use of HEPA filters, pre-flight testing for antibodies and symptoms, and socially distanced seating (for a limited time). Keep in mind that policies will vary by airline.

Which airlines flying from Denver Intl to Seattle/Tacoma Intl have flexible cancellations due to COVID-19?

Delta, Alaska Airlines, and Frontier are some of the carriers that may have flexible cancellation policies. You can use our site to filter for other airlines that may also have this kind of flexibility.

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 $62, 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 $89.

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?

You can find nonstop flights on the following days: Sunday, Monday, Tuesday, Thursday, Friday, Saturday.

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

Per day, 7 flights depart from Denver Intl to Seattle/Tacoma Intl on average.
Morning (6am - Noon) - 71% of flight departures
Evening (6pm - Midnight) - 29% of flight departures

Does it rain more in Denver or Seattle?

When traveling, it's generally smart to pack in preparation for rain or any other conditions that may arise. The rainfall in Denver is roughly less than Seattle. You can assume this to be the case over the next 7 days.

Is Denver weather warmer or cooler than Seattle?

Our data indicates that the weather will be 90 °F on average in the month of July. The temperature in Seattle is typically colder than in Denver. If you're traveling when the temperature is at its warmest, push to plan early, as flight price and availability will have an impact on your travels. For the best results, search for flights well in advance or after peak season.

How long is the flight from Denver to Seattle?

Departing from Denver to Seattle will take you 2h 58m. The distance from Denver to Seattle is about 1028 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

Our cheapest airline available from Denver to Seattle is Frontier. Our recent data shows that you can find tickets from as low as $62 on this airline. Additional options worth looking into are Spirit Airlines and United Airlines, starting at $94 and $102 round-trip. Frontier is 63% cheaper than the average price of flights available within the next 90 days to this destination.

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

The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $29. However, be on the lookout for offers from Spirit Airlines and Alaska Airlines, as they are both options that can get you from Denver to Seattle for a low price.

Alternative routes for Denver to Seattle

Destination information for Seattle

Things to know before you go. Useful info for your trip from Denver to Seattle
Flight duration
2h 49m
Average temperature for October in Seattle
60.8 °F
Avg rainfall for October in Seattle
3.5 ″

Airports servicing Denver

Airports servicing Seattle

Hourly flight availability from Denver to Seattle

Morning 6 AM to noon 34% of DEN to SEA departures
Early morning Midnight to 6 AM 31% of DEN to SEA departures
Afternoon Noon to 6 PM 26% of DEN to SEA departures
Evening 6 PM to midnight 9% of DEN to SEA departures
Midnight
6 AM
Noon
6 PM
Weekly flight availability
from Denver to Seattle
Sunday
21 daily flights
Monday
23 daily flights
Tuesday
19 daily flights
Wednesday
21 daily flights
Thursday
24 daily flights
Friday
22 daily flights
Saturday
15 daily flights
Home North America USA Washington Seattle Cheap flights from Denver to Seattle