$108+ Cheap flights from Colorado Springs to Seattle (COS - SEA)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/12. Fares are subject to change and may not be available on all flights or dates of travel.
COS — SEA
Nov 20 — Nov 271
Round-trip
1 adult, Economy
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Find cheap flights from Colorado Springs to Seattle with Cheapflights
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Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Colorado Springs to Seattle
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Cheapest flights from Colorado Springs to SeattleExplore the most affordable flight options available from Colorado Springs to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 21, 2026.
Explore the most affordable flight options available from Colorado Springs to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 21, 2026.
This Southwest deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/211:50 am -
1 stop7h 00m
Mon 12/79:25 am -
1 stop5h 10m
Deal found 10/20![Southwest logo]()
$215
This Delta deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/128:14 am -
1 stop7h 41m
Tue 11/177:15 am -
2 stops9h 13m
Deal found 10/20![Delta logo]()
$220
This Delta deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/26:05 pm -
1 stop7h 00m
Thu 12/37:15 am -
2 stops9h 08m
Deal found 10/19![Delta logo]()
$226
This United Airlines deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/1611:10 am -
2 stops8h 18m
Thu 12/315:00 am -
1 stop4h 37m
Deal found 10/20![United Airlines logo]()
$242
This Delta deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/248:14 am -
2 stops9h 37m
Tue 12/112:31 pm -
2 stops8h 53m
Deal found 10/20![Delta logo]()
$254
This United Airlines deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/185:30 am -
2 stops7h 50m
Sat 11/215:05 am -
1 stop4h 28m
Deal found 10/19![United Airlines logo]()
$276
This Delta deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/158:14 am -
1 stop7h 41m
Sat 12/59:18 am -
1 stop7h 05m
Deal found 10/19![Delta logo]()
$280
This United Airlines deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/106:00 am -
2 stops11h 12m
Tue 11/175:05 am -
1 stop4h 28m
Deal found 10/18![United Airlines logo]()
$302
This Southwest deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/125:05 pm -
2 stops8h 05m
Tue 11/177:40 am -
2 stops8h 20m
Deal found 10/21![Southwest logo]()
$316
Best flights from Colorado Springs to SeattleDiscover carefully curated flight deals from Colorado Springs to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 21, 2026.
Discover carefully curated flight deals from Colorado Springs to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 21, 2026.
This United Airlines deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/1211:26 am -
1 stop7h 46m
Tue 1/268:30 am -
1 stop7h 00m
Deal found 10/18![United Airlines logo]()
$297
This Southwest deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/65:05 pm -
2 stops8h 05m
Tue 11/105:40 am -
1 stop6h 20m
Deal found 10/21![Southwest logo]()
$327
This Delta deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/78:00 am -
2 stops9h 59m
Sat 1/912:00 pm -
2 stops9h 40m
Deal found 10/18![Delta logo]()
$347
This United Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/77:05 am -
1 stop7h 45m
Mon 1/115:00 am -
1 stop4h 51m
Deal found 10/21![United Airlines logo]()
$325
This United Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/710:25 am -
2 stops9h 21m
Sat 11/145:05 am -
1 stop4h 28m
Deal found 10/21![United Airlines logo]()
$327
This Delta deal was found by Cheapflights users on 10/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/226:08 pm -
1 stop6h 51m
Mon 11/307:15 am -
2 stops9h 13m
Deal found 10/17![Delta logo]()
$408
This Southwest deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/183:05 pm -
2 stops8h 15m
Wed 11/2512:45 pm -
2 stops8h 35m
Deal found 10/18![Southwest logo]()
$427
This Delta deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/38:17 am -
1 stop5h 35m
Sat 11/71:30 pm -
1 stop7h 52m
Deal found 10/19![Delta logo]()
$429
This United Airlines deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/41:20 pm -
2 stops8h 27m
Mon 11/95:05 am -
1 stop4h 28m
Deal found 10/18![United Airlines logo]()
$393
This Southwest deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/33:05 pm -
2 stops8h 10m
Sat 11/75:05 am -
1 stop6h 30m
Deal found 10/19![Southwest logo]()
$434
This Southwest deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/225:15 pm -
2 stops9h 30m
Mon 12/289:50 pm -
1 stop11h 30m
Deal found 10/19![Southwest logo]()
$448
This United Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/610:25 am -
2 stops10h 12m
Sat 11/141:16 pm -
2 stops7h 47m
Deal found 10/21![United Airlines logo]()
$429
Last-minute flights from Colorado Springs to SeattleDiscover last-minute flight deals from Colorado Springs to Seattle. Data last updated October 21, 2026 and is based on user searches.
Discover last-minute flight deals from Colorado Springs to Seattle. Data last updated October 21, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/73:25 pm -
1 stop6h 10m
Tue 11/175:40 am -
1 stop6h 20m
Deal found 10/21![Southwest logo]()
$322
This United Airlines deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/106:00 am -
2 stops11h 12m
Tue 11/175:05 am -
1 stop4h 28m
Deal found 10/18![United Airlines logo]()
$302
This Southwest deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/127:45 pm -
1 stop6h 15m
Tue 11/175:40 am -
1 stop6h 20m
Deal found 10/21![Southwest logo]()
$215
This Delta deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/128:14 am -
1 stop7h 41m
Tue 11/177:15 am -
2 stops9h 13m
Deal found 10/20![Delta logo]()
$220
This Delta deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/158:14 am -
1 stop7h 41m
Sat 12/59:18 am -
1 stop7h 05m
Deal found 10/19![Delta logo]()
$280
This United Airlines deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/185:30 am -
2 stops7h 50m
Sat 11/215:05 am -
1 stop4h 28m
Deal found 10/19![United Airlines logo]()
$276
This United Airlines deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/196:25 pm -
1 stop5h 50m
Thu 11/268:30 am -
1 stop4h 50m
Deal found 10/20![United Airlines logo]()
$325
This Delta deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/248:14 am -
2 stops9h 37m
Tue 12/112:31 pm -
2 stops8h 53m
Deal found 10/20![Delta logo]()
$254
One-way flights from Colorado Springs to SeattleSearch for one-way flight options from Colorado Springs to Seattle. Find affordable one-way fares based on user searches. Data last updated October 21, 2026.
Search for one-way flight options from Colorado Springs to Seattle. Find affordable one-way fares based on user searches. Data last updated October 21, 2026.
This United Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/125:30 am -
1 stop5h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![United Airlines logo]()
$108
This Delta deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/206:08 pm -
1 stop6h 51m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Delta logo]()
$144
This Southwest deal was found by Cheapflights users on 10/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/58:35 pm -
1 stop5h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/17![Southwest logo]()
$215
This Southwest deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/288:25 pm -
1 stop6h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/18![Southwest logo]()
$255
This American Airlines deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/612:54 pm -
1 stop10h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![American Airlines logo]()
$259
This Southwest deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/205:00 am -
2 stops8h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Southwest logo]()
$260
This Delta deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/68:17 am -
2 stops9h 28m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/18![Delta logo]()
$265
This United Airlines deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/610:25 am -
2 stops12h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![United Airlines logo]()
$275
This Kiwi.com deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/205:37 pm -
3 stops40h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Multiple Airlines logo]()
$279
This Delta deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/138:14 am -
1 stop7h 41m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/19![Delta logo]()
$299
Find flight deals from Colorado Springs to Seattle
Discover tips and strategies to find the most affordable flight options for your journey from Colorado Springs (COS) 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 October 21, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $215 (Southwest) |
One-way from | $108 (United Airlines) |
Popular in | June |
Cheapest in | January |
Average price | $351 |
Cheapflights Fare Finder
Customize your flight search to find flights from Colorado Springs 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 7,457,451 searches. Data last updated October 21, 2026.
Use the filters below to find and compare flights from Colorado Springs to Seattle that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Colorado SpringsSeattle
COS Colorado Springs - SEA Seattle/Tacoma Intl
COSSEA
Colorado Springs
Thu 11/12
5:30 am-9:47 am
1 stop5h 17m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$108
Colorado SpringsSeattle
COS Colorado Springs - SEA Seattle/Tacoma Intl
COSSEA
Colorado Springs
Thu 11/26
5:30 am-2:39 pm
2 stops10h 09m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$113
Colorado SpringsSeattle
COS Colorado Springs - SEA Seattle/Tacoma Intl
COSSEA
Colorado Springs
Fri 11/20
6:08 pm-11:59 pm
1 stop6h 51m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$144
Quickest round-trip
Colorado SpringsSeattle
COS Colorado Springs - SEA Seattle/Tacoma Intl
COSSEA
Colorado Springs
Fri 11/6
6:07 pm-10:05 pm
1 stop4h 58m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$215
Colorado SpringsSeattle
COS Colorado Springs - SEA Seattle/Tacoma Intl
COSSEA
Colorado Springs
Thu 11/5
5:05 pm-12:10 am
2 stops8h 05m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$220
Colorado SpringsSeattle
COS Colorado Springs - SEA Seattle/Tacoma Intl
COSSEA
Colorado Springs
Mon 12/28
8:25 pm-1:45 am
1 stop6h 20m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$255
Colorado SpringsSeattle
COS Colorado Springs - SEA Seattle/Tacoma Intl
COSSEA
Colorado Springs
Fri 11/6
12:54 pm-10:11 pm
1 stop10h 17m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$259
Colorado SpringsSeattle
COS Colorado Springs - SEA Seattle/Tacoma Intl
COSSEA
Colorado Springs
Fri 11/20
5:00 am-12:00 pm
2 stops8h 00m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$260
Colorado SpringsSeattle
COS Colorado Springs - SEA Seattle/Tacoma Intl
COSSEA
Colorado Springs
Tue 1/12
11:26 am-6:12 pm
1 stop7h 46m
Seattle/Tacoma Intl
Tue 1/26
8:30 am-4:30 pm
1 stop7h 00m
$297
Colorado SpringsSeattle
COS Colorado Springs - SEA Seattle/Tacoma Intl
COSSEA
Colorado Springs
Thu 1/7
7:05 am-1:50 pm
1 stop7h 45m
Seattle/Tacoma Intl
Mon 1/11
5:00 am-10:51 am
1 stop4h 51m
$325
Showing 1-10 of 20 resultsSorted by cheapest first
Compare providers for flights from Colorado Springs to Seattle
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Colorado Springs to Seattle in October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Colorado Springs-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Colorado Springs-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Colorado Springs-Seattle flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Colorado Springs-Seattle flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Colorado Springs-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Colorado Springs to Seattle
Have a flexible travel schedule? Discover the best time to fly to Seattle from Colorado Springs with our price prediction graph.
COS-SEA
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Colorado Springs to Seattle
How far ahead should I book a flight from Colorado Springs to Seattle?
The price you pay for your flight from Colorado Springs to Seattle may vary depending on when you book. For the best chance of a lower fare, look to book 59 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from Colorado Springs to Seattle?
Currently, January is the cheapest month in which you can book a flight from Colorado Springs to Seattle (average of $224). Flying from Colorado Springs to Seattle in June is currently the most expensive (average of $530). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How much does it cost to fly round-trip from Colorado Springs to Seattle?
Airfare is below average for this route at the moment.
Colorado Springs to Seattle flights typically cost between $294 and $456 in December.The cheapest round-trip price found within the last 5 days was $215 on Southwest (Dec 2-Dec 7).
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 October 21, 2026.
Peruse reviews from past customers who have flown with Southwest,Delta, andUnited Airlines from Colorado Springs to Seattle to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.4
Overall
7.9
Crew
8.6
Food
7.0
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentCourtney,Sep 2026
DEN - STL
Entertainment
7.4
Overall
7.9
Crew
8.6
Food
7.0
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentCourtney,Sep 2026
DEN - STL
Entertainment
7.4
Overall
7.9
Crew
8.6
Food
7.0
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentCourtney,Sep 2026
DEN - STL
Entertainment
7.4
Overall
7.9
Crew
8.6
Food
7.0
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentCourtney,Sep 2026
DEN - STL
Related info for your journey
Find useful and relevant information for your journey from Colorado Springs to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Seattle?
Book flights to Seattle if you plan to visit one of these locationsSeaTac
Renton
Tacoma
Lacey
Leavenworth
Olympia
Tukwila
Snoqualmie
Puyallup
Lynnwood
Centralia
Kent
Tumwater
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Alternative routes for Colorado Springs to Seattle
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Complete your trip
Complete your trip to Seattle by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Colorado Springs to Seattle by cabin class
Find flights from Colorado Springs to Seattle, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Colorado Springs and Seattle flights
Browse other Colorado Springs and Seattle flight options. Last updated on October 21, 2026.
Other flights from Colorado Springs
Browse through other flights departing from Colorado Springs. Flights are based on user searches made on Cheapflights and were last updated on October 21, 2026.
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Check out other popular destinations found by fellow travelers in 2026
Other flights to Seattle
Explore flights to Seattle departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 21, 2026.
Top 3 airlines flying from Colorado Springs to Seattle
Discover the top 3 airlines that operate flights from Colorado Springs 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 7,457,451 searches. Data last updated October 21, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$137 | Average$318 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$196 | Average$426 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$217 | Average$409 | FlexibilityNo cancel fee | On-time69% |