Cheap flights from Denver to Seattle (DEN - SEA)

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The best prices from Denver Intl to Seattle/Tacoma Intl are usually found in January or April, booked 20 days in advance, depart on a Tuesday or Saturday and return on a Friday

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

All the information you need to plan the best DEN to SEA flight in 2022: compare Denver to Seattle flight prices with the expected peak season, weather and rainfall in Seattle.
DEN - SEA
Price
$111 - $173
SEA
Temperature
41 - 66.2 °F
SEA
Rainfall
0.7 - 6.6 inches

Popular in

December

High demand for flights, 14% potential price rise

Cheapest in

January

Best time to find cheap flights, 25% potential price drop

Round-trip from

$111

From Denver Intl to Seattle/Tacoma Intl

One-way from

$84

One-way flight from Denver Intl to Seattle/Tacoma Intl

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
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 14% versus a flight at noon.

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 24% 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 12% by booking at least 18 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 $140.

Cheap flights from Denver to Seattle in May, June 2022

The best prices found for DEN to SEA flights for May, June
31 May - 2 Jun
$160pp
DEN
Denver Intl
Frontier
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Frontier
Non-Stop
DEN
Denver Intl
31 May - 2 Jun
$164pp
DEN
Denver Intl
Frontier
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Frontier
Non-Stop
DEN
Denver Intl
25 May - 30 May
$178pp
DEN
Denver Intl
Frontier
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Frontier
Non-Stop
DEN
Denver Intl

Denver Intl to Seattle 2022 flight deals

Cheap flights to Seattle from Denver found for this year
14 Sep - 20 Sep
$128pp
DEN
Denver Intl
Multiple Airlines
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Delta
Non-Stop
DEN
Denver Intl
18 Oct - 23 Oct
$136pp
DEN
Denver Intl
Alaska Airlines
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Alaska Airlines
Non-Stop
DEN
Denver Intl
8 Sep - 12 Sep
$144pp
DEN
Denver Intl
United Airlines
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
United Airlines
Non-Stop
DEN
Denver Intl

Non-stop flights to Seattle from Denver

Save time with Denver to Seattle direct flight deals
28 Oct - 30 Oct
$128pp
DEN
Denver Intl
Alaska Airlines
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Alaska Airlines
Non-Stop
DEN
Denver Intl
18 Oct - 23 Oct
$136pp
DEN
Denver Intl
Alaska Airlines
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Alaska Airlines
Non-Stop
DEN
Denver Intl
8 Sep - 12 Sep
$144pp
DEN
Denver Intl
United Airlines
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
United Airlines
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
25 May - 30 May
$178pp
DEN
Denver Intl
Frontier
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Frontier
Non-Stop
DEN
Denver Intl
25 May - 1 Jun
$186pp
DEN
Denver Intl
Frontier
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Frontier
Non-Stop
DEN
Denver Intl
27 May - 3 Jun
$191pp
DEN
Denver Intl
Frontier
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Frontier
Non-Stop
DEN
Denver Intl

One-way flights to Seattle/Tacoma Intl from Denver

The cheapest one-way flights from Denver to Seattle
4:45 pm - 6:45 pm
United Airlines
Nonstop
3h 00m
DEN - SEA
United Airlines
$84
United
9:57 am - 3:35 pm
American Airlines
1 Stop
6h 38m
DEN - SEA
American Airlines
6:54 pm - 6:57 am
Multiple Airlines
1 Stop
13h 03m
DEN - SEA
Multiple Airlines
$132
Kiwi.com

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Denver</span> to <span class="emphasized">Seattle</span> flights.

Flight FAQs

From Denver to Seattle

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 9 different airlines have flights from Denver Intl (DEN) to Seattle/Tacoma Intl (SEA) on a regular basis. There are 22 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 55m.

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

United Airlines, Alaska Airlines, and Delta 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 $200 on Cheapflights?

Yes, there are multiple flights from Denver to Seattle for under $200. The cheapest flight booked recently is on Multiple Airlines for just $128, but on average you can expect to pay $168.

Are there nonstop flights from Denver to Seattle for under $200 on Cheapflights?

Cheapflights has at least 20 direct flights from Denver to Seattle under $200. A good price for a nonstop flight from Denver to Seattle is less than $174.

Are there last-minute flights available from Denver to Seattle for under $200?

There are currently 20+ open flights from Denver to Seattle within the next 7 days for less than $200.

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?

Within the past month, 101 users have taken a look at flights from Denver Intl to Seattle/Tacoma Intl.

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

22 flight departures from Denver to Seattle per day on average.
Early Morning (Midnight to 6am) - 23% of flight departures
Morning (6am - Noon) - 55% of flight departures
Afternoon (Noon - 6pm) - 9% of flight departures
Evening (6pm - Midnight) - 14% of flight departures

How long is the flight from Denver to Seattle?

Airlines like Alaska Airlines, United Airlines, and Frontier fly from Denver to Seattle in about 2h 55m. The time it takes to get you to your destination is usually consistent. Airlines will cover a distance of 1028 mi. Generally, flights for this route are nonstop.

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

Alaska Airlines, at $136, was found to be the cheapest airline from Denver to Seattle.Alternate airlines to your destination round-trip include United Airlines and Frontier. Users have found that Alaska Airlines is 8% 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 Alaska Airlines. According to our data, you can fly for as low as $64. Users have also found prices from $84 and $105 on United Airlines and Frontier, respectively.

What are the cheapest flights from Denver to Seattle?

Looking at all options, your cheapest flight can be booked for $104. While the most popular route (Denver Intl - Seattle/Tacoma Intl) can be booked for $128 on average our data indicates $500 when flying 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: Air France (92%), WestJet (90%), Virgin Atlantic( 89%).

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

Before booking your flight from Denver to Seattle check out the most popular airlines for this route: American Airlines, Alaska Airlines or Delta.

COVID Restrictions

View COVID Travel Restrictions for Seattle, WA

Do I need a COVID test to fly to Seattle from Denver?

Information is based on travel restrictions for travel to Seattle/Tacoma Intl within the United States

Most visitors from Denver Intl need to provide a negative COVID-19 test result and/or quarantine to enter Seattle/Tacoma Intl.

COVID-19 testing requirements
Visitors from Denver Intl must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 1 day for RT-PCR (NAAT) and 1 day for Antigen (quick-test) before departing to Seattle/Tacoma Intl.

Quarantine requirements
Visitors from Denver Intl are not required to quarantine after entering Seattle/Tacoma Intl.

Do I need a test to fly back to Denver from Seattle?

Returning to Denver Intl from Seattle/Tacoma Intl

COVID-19 testing requirements
Visitors from Seattle/Tacoma Intl must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 1 day for RT-PCR (NAAT) and 1 day for Antigen (quick-test) before departing to Denver Intl.

Quarantine requirements
Visitors from Seattle/Tacoma Intl are not required to quarantine after entering Denver Intl.

Hide COVID Travel Restrictions for Seattle, WA

Alternative routes for Denver to Seattle

See prices for flight routes from nearby airports that may be better suited for you.

Destination information for Seattle

Things to know before you go - useful duration and weather info for your trip from Denver to Seattle.
Flight duration from DEN to SEA
2h 50m
Average temperature for May in Seattle
66.2 °F
Avg rainfall for May in Seattle
1.8 ″

Airports servicing Denver

Airports servicing Seattle

Top 7 airlines flying from Denver Intl to Seattle/Tacoma Intl

The chart below displays the airlines Cheapflights users traveling from Denver to Seattle choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Airline Cheapest Average Flexibility On-time COVID-19 safety
Juneyao Airlines
$10 $21 No cancel fee 66%

We couldn't confirm the COVID-19 safety measures taken by Juneyao Airlines. Please check directly on their website for additional information.

Frontier
$54 $120 No cancel fee 62%
Spirit Airlines
$76 $120 No cancel fee 65%
Delta
$78 $177 No cancel fee N/A
Alaska Airlines
$78 $177 No cancel fee 75%
United Airlines
$78 $187 No cancel fee 69%
American Airlines
$133 $380 No cancel fee 71%

Hourly flight availability from Denver to Seattle

See what time of day planes typically take off from Denver towards Seattle.
Morning 6 AM to noon 54% of DEN to SEA departures
Afternoon Noon to 6 PM 22% of DEN to SEA departures
Early morning Midnight to 6 AM 13% of DEN to SEA departures
Evening 6 PM to midnight 11% of DEN to SEA departures
Midnight
6 AM
Noon
6 PM
Weekly flight availability
from Denver to Seattle
See how many times per day planes take to the skies headed from Denver to Seattle.
Sunday
19 daily flights
Monday
28 daily flights
Tuesday
22 daily flights
Wednesday
31 daily flights
Thursday
22 daily flights
Friday
22 daily flights
Saturday
13 daily flights
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