Cheap Flights from Colorado Springs Peterson Field to Seattle

Compare Colorado Springs Peterson Field to Seattle flight deals

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Find the cheapest month to fly from Colorado Springs Peterson Field to Seattle

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Colorado Springs Peterson Field to Seattle flights are currently cheapest in October.

Alternative Colorado Springs Peterson Field to Seattle routes

Looking for the cheapest, fastest or easiest route from Colorado Springs Peterson Field to Seattle? You could fly into the following airports instead.

Colorado Springs to Seattle: Flight information

The things to know before you go.
Cheapest flight foundR 1,343
Cheapest month to flyOctober

Finding cheap flights from Colorado Springs Peterson Field to Seattle: Frequently asked questions

There are 4 airports in Seattle: Seattle Lake Union SPB, Seattle Boeing Fld, Seattle / Tacoma International, and Paine Field.
The best price we found for a return flight from Colorado Springs Peterson Field to Seattle is R 3,999. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Colorado Springs Peterson Field to Seattle. But we found flights with one or more stops from R 3,999.
As of August 2025, there are no flights flying from Colorado Springs Peterson Field to Seattle.
The cheapest month to fly from Colorado Springs Peterson Field to Seattle is usually October.
If you're flying from Colorado Springs Peterson Field Airport, the cheapest airport near Seattle is Seattle / Tacoma International – which is 19.5 km away from the centre of Seattle. We've found flights into this airport from R 3,999.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Colorado Springs Peterson Field Airport to Seattle on Wednesday, 22 October 2025.
No airlines currently offer direct flights between Colorado Springs Peterson Field Airport and Seattle. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Seattle but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Seattle is around 40 days in advance, so don’t leave your flight to the last minute.
In August, the average temperature is usually around 18°C. August is typically the warmest month in Seattle, when it usually averages around 23°C. You can expect the least rain in July. The coldest month is December, with temperatures averaging 0°C. The rainiest month is November.
Currently, Southwest Airlines offers the cheapest flight tickets to Seattle.

Flying from Colorado Springs Municipal Airport (COS) to Seattle: what you need to know

  • Colorado Springs Municipal Airport is located in Colorado Springs. Based in the UTC-7 timezone, Seattle is one hour behind Colorado Springs.

  • Give yourself enough time to get on your COS to Seattle flight. As a general rule, turn up at least two hours before international departures and an hour ahead for domestic flights.

  • Travelling during a peak period like school or public holidays? Expect longer lines at check-in and security. Play it safe and arrive up to four hours before international flights and two hours before domestic departures.

  • COS is about 11 kilometres from central Colorado Springs. If you're catching a cab, ride-sharing or driving from the centre, it'll take 20 minutes or so to get there, depending on traffic. If you're using public transport, expect the journey time to be around 1 hour 5 minutes.

  • Want a relaxed start to your trip? Stay near COS. Whether you're catching an early flight from Colorado Springs Municipal Airport to Seattle or don't want departure day to feel hectic, these hotels are just the thing:

  • Colorado Springs Municipal Airport gets top marks for its on-time performance. 83.68% of flights that take off from COS arrive at their destination without delay.

  • You'll find COS at 7770 Milton E. Proby Parkway.

How to find the cheapest flights from Colorado Springs Municipal Airport (COS) to Seattle

  • The best price we've found for a one-way Colorado Springs Municipal Airport to Seattle flight is R 1,343. The cheapest price for a return flight is R 3,999. Remember fares can change due to demand at the time of booking.

  • To pick up cheap flights from COS to Seattle, book in advance. Airlines usually offer their most competitively priced fares when flights first go on sale.

  • The 'Whole month' tool will show you the cheapest tickets from Colorado Springs Municipal Airport to Seattle throughout the entire month. It's a great way to find a bargain if your trip dates are flexible.

  • Snapping up a cheap flight from COS to Seattle is a breeze with Price Alerts. Simply set up one of these automatic notifications and we'll notify you as soon as there's a better deal.

  • Pick your ideal arrival and departure times, number of stops and airlines with our filters. Then, sort the results for your flight from Colorado Springs Municipal Airport to Seattle by 'Fastest,' 'Cheapest' or 'Best.'

Airports in Seattle

Seattle-Tacoma International Airport (SEA)

  • Seattle-Tacoma International Airport (SEA) is around 23 kilometres from the centre of Seattle. If you're catching a cab or a ride-share, the drive takes roughly 20 minutes.

  • It'll take around 55 minutes to get there by public transport.

  • The last thing you need is a lengthy journey to your hotel if you're arriving on a late flight from Colorado Springs Municipal Airport to Seattle. Check in to one of these accommodation options near SEA instead:

  • Travel at your own speed with a Seattle-Tacoma International Airport rental car. Book your wheels from Thrifty, Europcar or Budget and experience more of Seattle and beyond.

  • Lock in the best rate by booking your ride from Seattle-Tacoma International Airport around one week before your flight from COS to Seattle.

Lake Union Sea Plane Base Airport (LKE)

  • Central Seattle is about 3 kilometres from Lake Union Sea Plane Base Airport (LKE). After your flight from Colorado Springs Municipal Airport to Seattle has hit the runway and you've made your way to arrivals, expect a drive of around 10 minutes.

  • You can expect the journey to take about 25 minutes on public transport.

  • There are some comfortable places to park your luggage (and yourself) near LKE. Unwind and get cosy after your COS to Seattle flight at any of these well-located options:

Best time to go to Seattle

  • Visit Seattle during peak season if you want a bustling atmosphere, but remember that hotel prices are typically higher. Alternatively, book your flights from Colorado Springs Municipal Airport to Seattle in the low season when prices are cheaper and it's quieter.

  • Before booking a Colorado Springs Municipal Airport to Seattle flight ticket, think about what kind of weather you prefer. August is the warmest month in Seattle, with temperatures ranging from 12ºC (54ºF) to 28ºC (82ºF).

  • February has average temperatures of between -1ºC (30ºF) and 11ºC (52ºF). Look for a cheap ticket from COS to Seattle around that time if you like cooler conditions.

More about Seattle

  • Start your Seattle trip off on the right foot by choosing the perfect place to stay. After booking your flight from Colorado Springs Municipal Airport to Seattle, explore our selection of hotels including:

  • There are so many things to discover in this city it can be tricky to know where to begin. LMN Architects, Greyhound: Bus Station and Boeing Radiation Effects Lab are highlights which should be on any well-planned Seattle itinerary.

Explore more of United States

  • You've done Seattle, now it's time to explore more of United States. Travel around 241 kilometres south to Portland to tick off its top attractions. From Pioneer Courthouse Square to Portland Japanese Garden and Pittock Mansion, you'll have a full itinerary ahead.

  • Around 370 kilometres east of Seattle, Spokane is another essential stop in United States. No visit is complete without checking out Manito Park, Northwest Museum of Arts & Culture and Spokane Falls.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.