Cheap flights from Colorado (CO) to Washington (WA)

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How to find the cheapest flight from
Colorado to Washington

All the information you need to plan the best null to SEA flight in 2021: compare Colorado to Washington flight prices with the expected peak season, weather and rainfall in Washington.
How far in advance should I book a flight from Colorado to State of Washington?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 18 days in advance, which can save you up to 12% on flights from Colorado to State of Washington compared to booking the week you need them. Waiting 18 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 $140. For sooner than that we have options available in the next 3 days from $162.

When is the cheapest time to fly from Colorado to State of Washington (CO - WA)?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Colorado to State of Washington as you normally would.

Cheap flights from Colorado to Washington in November, December 2021

The best prices found for Colorado to Washington flights for November, December
17 Dec - 4 Jan
$98pp
DEN
Denver Intl
Frontier
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Frontier
Non-Stop
DEN
Denver Intl
9 Dec - 13 Dec
$100pp
DEN
Denver Intl
Frontier
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Frontier
Non-Stop
DEN
Denver Intl
9 Dec - 12 Dec
$103pp
DEN
Denver Intl
Frontier
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Frontier
Non-Stop
DEN
Denver Intl

Colorado to Washington 2022 flight deals

Cheap flights to Washington from Colorado found for next year
17 Dec - 4 Jan
$98pp
DEN
Denver Intl
Frontier
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Frontier
Non-Stop
DEN
Denver Intl
9 Dec - 13 Dec
$100pp
DEN
Denver Intl
Frontier
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Frontier
Non-Stop
DEN
Denver Intl
9 Dec - 12 Dec
$103pp
DEN
Denver Intl
Frontier
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Frontier
Non-Stop
DEN
Denver Intl

Non-stop flights to Washington from Colorado

Save time with Colorado to Washington direct flight deals
20 Jan - 22 Jan
$89pp
DEN
Denver Intl
Frontier
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Frontier
Non-Stop
DEN
Denver Intl
20 Jan - 23 Jan
$91pp
DEN
Denver Intl
Frontier
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Frontier
Non-Stop
DEN
Denver Intl
20 Jan - 22 Jan
$95pp
DEN
Denver Intl
Frontier
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Frontier
Non-Stop
DEN
Denver Intl

Last minute flights from Colorado to Washington

Late deals on round-trip flights to Washington from Colorado, departing today and this week
9 Dec - 13 Dec
$100pp
DEN
Denver Intl
Frontier
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Frontier
Non-Stop
DEN
Denver Intl
9 Dec - 12 Dec
$103pp
DEN
Denver Intl
Frontier
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Frontier
Non-Stop
DEN
Denver Intl
9 Dec - 10 Dec
$113pp
DEN
Denver Intl
Frontier
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Frontier
Non-Stop
DEN
Denver Intl

One-way flights to Washington from Colorado

The cheapest one-way flights from Colorado to Washington
2:49 pm - 4:55 pm
Alaska Airlines
Nonstop
3h 06m
DEN - SEA
Alaska Airlines
8:30 am - 1:22 pm
Spirit Airlines
1 Stop
5h 52m
DEN - SEA
Spirit Airlines
$68
FareScan
5:00 pm - 7:14 pm
Frontier
Nonstop
3h 14m
DEN - SEA
Frontier
$75
JustFly

Related info for your journey

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

Flight FAQs

From Colorado to Washington

Which airlines flying from Colorado to Washington have flexible cancellations due to COVID-19?

Due to the rapidly changing circumstances due to COVID-19, airlines like United Airlines, Delta, and Frontier flying from Colorado to Washington have implemented new flexible cancellation policies.

Can I find flights from Colorado to State of Washington for under $100 on Cheapflights?

Yes, there are multiple flights from Colorado to State of Washington for under $100. The cheapest flight booked recently is on Frontier for just $89, but on average you can expect to pay $103.

Are there nonstop flights from Colorado to State of Washington for under $100 on Cheapflights?

Cheapflights has at least 20 direct flights from Colorado to State of Washington under $100. A good price for a nonstop flight from Colorado to State of Washington is less than $104.

Are there last-minute flights available from Colorado to State of Washington for under $100?

There are currently 20+ open flights from Colorado to State of Washington within the next 7 days for less than $100.

What days are nonstop flights available from Colorado to State of Washington?

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

How popular is this Colorado to State of Washington flight route?

This flight path from Colorado to Washington was viewed by 373 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

How many flights depart from Colorado to State of Washington on average per day?

On average 12 flights depart from Colorado to State of Washington per day.
Early Morning (Midnight to 6am) - 25% of flight departures
Morning (6am - Noon) - 8% of flight departures
Afternoon (Noon - 6pm) - 25% of flight departures
Evening (6pm - Midnight) - 42% of flight departures

How long is the flight from Colorado to State of Washington?

For as low as $89, Frontier can have you in State of Washington from Colorado in 3h 05m. There are 1028 mi between Colorado and State of Washington. Generally, flights for this route are nonstop.

What are the cheapest airlines to fly from Colorado to State of Washington one-way?

$37 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Alaska Airlines and Spirit Airlines, with prices starting from $59 and $61, respectively.

Related searches

Flights to Washington from Colorado
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Rent a Car

Car Rentals in Washington

COVID Restrictions

View COVID Travel Restrictions for Washington (WA)

Do I need a COVID test to fly to Washington from Colorado?

Information is based on travel restrictions for travel to Washington within the United States

Most visitors from Colorado need to provide a negative COVID-19 test result and/or quarantine to enter Washington.

COVID-19 testing requirements
Visitors from Colorado must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Washington.

Quarantine requirements
Visitors from Colorado are not required to quarantine after entering Washington.

Do I need a test to fly back to Colorado from Washington?

Returning to Colorado from Washington

COVID-19 testing requirements
Visitors from Washington must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Colorado.

Quarantine requirements
Visitors from Washington are not required to quarantine after entering Colorado.

Hide COVID Travel Restrictions for Washington (WA)

Destination information for Washington

Things to know before you go - useful duration and weather info for your trip from Colorado to Washington.
Flight duration from Colorado to Washington
2h 52m

Airports servicing

Colorado Springs (COS)
Denver (DEN)
Durango (DRO)
Vail Eagle County (EGE)
Loveland Northern Colorado (FNL)

Airports servicing

Seattle King County/Boeing (BFI)
Bellingham (BLI)
Deer Harbor (DHB)
Wenatchee (EAT)
Eastsound Orcas Island (ESD)
Friday Harbor SPB (FBS)

Top 7 airlines flying from Colorado to Washington

The chart below displays the airlines Cheapflights users traveling from Colorado to Washington 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
Frontier
$57 $167 No cancel fee 62%
American Airlines
$58 $354 No cancel fee 71%
Delta
$69 $355 No cancel fee N/A
Alaska Airlines
$78 $291 No cancel fee 75%
United Airlines
$78 $400 No cancel fee 69%
Spirit Airlines
$87 $152 No cancel fee 65%
Southwest
$101 $421 No cancel fee 63%
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