Cheap flights from Colorado Springs to Seattle (COS - SEA) from $89
This is the cheapest one-way flight price, found on 9/27. Prices may vary by date and flight preferences.
The best prices from Colorado Springs to Seattle/Tacoma Intl are usually found in November or January, booked 60 days in advance, depart on a Thursday or Wednesday and return on a Saturday
How to find the cheapest flight from Colorado Springs (COS) to Seattle (SEA)
All the information you need to plan the best COS to SEA flight in 2023: compare Colorado Springs to Seattle flight prices with the expected peak season, weather and rainfall in Seattle.
Popular in | June |
|---|---|
Cheapest in | November |
Round-trip from | $237 |
One-way from | $129 |
COS - SEA Price | $237 - $457 |
|---|---|
SEA Temperature | 41 - 66.2 °F |
SEA Rainfall | 0.7 - 6.6 inches |
What is the cheapest day to fly round-trip from Colorado Springs to Seattle?
Leaving on a Wednesday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 99% on the overall cost on flights from Colorado Springs to Seattle.
How far in advance should I book a flight from Colorado Springs to Seattle?
To save up to 42% on this flight, we recommend booking at least 61 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Colorado Springs to Seattle from $456 1-2 weeks out and tickets from $626 for flights departing within the next 72 hours.
What is the cheapest month to fly from Colorado Springs to Seattle?
Flights from Colorado Springs to Seattle lean towards being more expensive in June. Prices are generally better when you fly from Colorado Springs to Seattle in November, with the cheapest ticket starting at $219.
When is the cheapest time to fly from Colorado Springs to Seattle (COS - SEA)?
It’s typically best to fly out from Colorado Springs to Seattle at noon. Doing so could potentially save you 32% on the flight price compared to flying in the morning, which is usually more expensive.
Cheap American Airlines flights from Colorado Springs to Seattle
Peruse some of the lowest-priced American Airlines flights we've found from Colorado Springs to Seattle. Make sure to double check the flight details before booking.
Cheap United Airlines flights from Colorado Springs to Seattle
Some of the lowest-priced United Airlines flights we've found at this time heading from Colorado Springs to Seattle. If these deals don't fit your criteria, make sure to check back soon as new deals are always added.
Cheap Colorado Springs to Seattle flights in September & October 2023
The best prices found for COS to SEA flights for September, October
Listed are some of the best fares we've found on flights departing from Colorado Springs to Seattle in 2023. Check back in a little while for more flight options.
Colorado Springs to Seattle 2023 flight deals
Cheap flights to Seattle from Colorado Springs found for this year
Listed are some of the best fares we've found on flights departing from Colorado Springs to Seattle in 2023. Check back in a little while for more flight options.
Colorado Springs to Seattle flights leaving soon
Late deals on return flights to Seattle from Colorado Springs, departing today and this week
Book one of these great deals on flights from Colorado Springs 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 Colorado Springs
The cheapest one-way flights from Colorado Springs to Seattle
Users traveling one-way from Colorado Springs to Seattle can select one of these great deals. Users in need of a round-trip flight from Colorado Springs to Seattle instead should update the search form at the top of page.
Find flights from Colorado Springs to Seattle within your budget
Use the slider to find flights from Colorado Springs to Seattle that fit your budget.
Fly from
Fly to
Budget
$247 - $418
Route
Depart
Return
Price
Colorado SpringsSeattle/Tacoma Intl
COS - SEA
COSSEA
Colorado Springs
Sun 10/29
1 stop8h 03m
Seattle/Tacoma Intl
Tue 10/31
1 stop7h 44m
Colorado SpringsSeattle/Tacoma Intl
COS - SEA
COSSEA
Colorado Springs
Fri 11/3
1 stop9h 10m
Seattle/Tacoma Intl
Mon 11/6
1 stop9h 04m
Colorado SpringsSeattle/Tacoma Intl
COS - SEA
COSSEA
Colorado Springs
Fri 11/3
2 stops10h 30m
Seattle/Tacoma Intl
Sun 11/5
1 stop8h 01m
Colorado SpringsSeattle/Tacoma Intl
COS - SEA
COSSEA
Colorado Springs
Fri 11/3
2 stops10h 30m
Seattle/Tacoma Intl
Mon 11/6
2 stops11h 03m
Colorado SpringsSeattle/Tacoma Intl
COS - SEA
COSSEA
Colorado Springs
Thu 10/12
1 stop9h 10m
Seattle/Tacoma Intl
Tue 10/17
1 stop8h 52m
Colorado SpringsSeattle/Tacoma Intl
COS - SEA
COSSEA
Colorado Springs
Thu 10/12
1 stop9h 10m
Seattle/Tacoma Intl
Tue 10/17
2 stops10h 52m
Colorado SpringsSeattle/Tacoma Intl
COS - SEA
COSSEA
Colorado Springs
Tue 10/10
1 stop5h 25m
Seattle/Tacoma Intl
Tue 10/17
1 stop6h 59m
Colorado SpringsSeattle/Tacoma Intl
COS - SEA
COSSEA
Colorado Springs
Wed 3/6
1 stop5h 58m
Seattle/Tacoma Intl
Sat 3/9
1 stop4h 31m
Colorado SpringsSeattle/Tacoma Intl
COS - SEA
COSSEA
Colorado Springs
Sun 10/15
1 stop6h 45m
Seattle/Tacoma Intl
Wed 10/18
2 stops23h 27m
Reviews of airlines servicing Seattle
Read through reviews of airlines operating flights from Colorado Springs to Seattle, such as American Airlines, United Airlines and Delta. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
Boarding
Crew
Comfort
Food
Overall
Reviews
It was a red eye flight . And after take off and the first service the flight attendants were no where to be found except in the galley. When I went to the bathroom, the entrance was blocked by a FA sitting and he basically exhaled loudly as he had to move his legs so I could get in. Never mind I was a comfort plus passenger and traveled to the back of the plane to go to the bathroom. I know I can go up to first class because there are no rules to prohibit me but it followed the “air” rules and was the flight attendants were rude as if I was putting them out. I will always fly delta but get your crew in check. I’m a former flight attendant and the crew is not priviledged. They are hired and paid to do a service.
Entertainment
Boarding
Crew
Comfort
Food
Overall
Reviews
It was a red eye flight . And after take off and the first service the flight attendants were no where to be found except in the galley. When I went to the bathroom, the entrance was blocked by a FA sitting and he basically exhaled loudly as he had to move his legs so I could get in. Never mind I was a comfort plus passenger and traveled to the back of the plane to go to the bathroom. I know I can go up to first class because there are no rules to prohibit me but it followed the “air” rules and was the flight attendants were rude as if I was putting them out. I will always fly delta but get your crew in check. I’m a former flight attendant and the crew is not priviledged. They are hired and paid to do a service.
Entertainment
Boarding
Crew
Comfort
Food
Overall
Reviews
It was a red eye flight . And after take off and the first service the flight attendants were no where to be found except in the galley. When I went to the bathroom, the entrance was blocked by a FA sitting and he basically exhaled loudly as he had to move his legs so I could get in. Never mind I was a comfort plus passenger and traveled to the back of the plane to go to the bathroom. I know I can go up to first class because there are no rules to prohibit me but it followed the “air” rules and was the flight attendants were rude as if I was putting them out. I will always fly delta but get your crew in check. I’m a former flight attendant and the crew is not priviledged. They are hired and paid to do a service.
Entertainment
Boarding
Crew
Comfort
Food
Overall
Reviews
It was a red eye flight . And after take off and the first service the flight attendants were no where to be found except in the galley. When I went to the bathroom, the entrance was blocked by a FA sitting and he basically exhaled loudly as he had to move his legs so I could get in. Never mind I was a comfort plus passenger and traveled to the back of the plane to go to the bathroom. I know I can go up to first class because there are no rules to prohibit me but it followed the “air” rules and was the flight attendants were rude as if I was putting them out. I will always fly delta but get your crew in check. I’m a former flight attendant and the crew is not priviledged. They are hired and paid to do a service.
Related info for your journey
Useful info, stats and facts about Colorado Springs to Seattle flights.
Can I find flights from Colorado Springs to Seattle for under $300 on Cheapflights?
Yes, there are multiple flights from Colorado Springs to Seattle for under $300. The cheapest flight booked recently is on American Airlines for just $247, but on average you can expect to pay $323.
Are there last-minute flights available from Colorado Springs to Seattle for under $300?
There are currently 20+ open flights from Colorado Springs to Seattle within the next 7 days for less than $300.
What are the cheapest airlines flying from Colorado Springs to Seattle round-trip?
According to our current data, American Airlines ($247), and United Airlines ($327) offers the cheapest pricing from Colorado Springs to Seattle. American Airlines is currently priced 43% below the average price you’ll pay for this route.
What are the cheapest airlines to fly from Colorado Springs to Seattle one-way?
$89 is the cheapest one-way deal found within the past few days, from American Airlines. You may also be able to find cheap deals on Delta and United Airlines, with prices starting from $129 and $184, respectively.
What are the most popular airlines that fly from Colorado Springs to Seattle?
American Airlines, Delta and United Airlines are the most popular airlines when flying from Colorado Springs to Seattle.
What does COS to SEA mean?
COS stands for Colorado Springs Airport, while SEA stands for Seattle/Tacoma Intl Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry.
Other flights from Colorado Springs
Flights to Seattle from Colorado Springs
Alternative routes for Colorado Springs to Seattle
See prices for flight routes from nearby airports that may be better suited for you.
Top 3 airlines flying from Colorado Springs to Seattle
The chart below displays the airlines Cheapflights users traveling from Colorado Springs to Seattle choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
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