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Estes Park

$55+ Cheap flights from Seattle (SEA) to Estes Park, CO

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/4. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — DEN
Nov 28 — Dec 51
Fri 11/28
Fri 12/5
1 adult, Economy
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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Estes Park are usually found in January or October, booked 77 days in advance, depart on a Friday or Thursday and return on a Friday

Cheap flight deals from Seattle to Estes Park

Keep the following information in mind while searching for Seattle to Estes Park flight deals. Data was last updated October 29, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$94
(Kiwi.com)

One-way from

$55
(Cheapflightsfares)

Popular in

December

Cheapest in

January

Average price

$188
Provider with most accurate pricing for Seattle/Tacoma Intl-Denver Intl flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Denver Intl flights.
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From Seattle/Tacoma Intl to Estes Park
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One-way flight from Seattle/Tacoma Intl to Estes Park
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High demand for flights, 0% potential price rise
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Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from Seattle to Estes Park

Cheapest flights from Seattle to Estes Park
Explore the most affordable flight options available from Seattle to Estes Park. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 29, 2025.

This Frontier deal was found by Cheapflights users on 10/29. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/41:37 pmSEA - DEN
Nonstop2h 53mFrontier
Tue 11/189:58 amDEN - SEA
Nonstop3h 09mFrontier
Deal found 10/29$93
This Kiwi.com deal was found by Cheapflights users on 10/27. 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.
Wed 11/1910:54 amSEA - DEN
Nonstop2h 47mMultiple Airlines
Wed 11/269:44 amDEN - SEA
Nonstop3h 12mMultiple Airlines
Deal found 10/27$94
This Frontier deal was found by Cheapflights users on 10/27. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/1512:58 pmSEA - DEN
Nonstop2h 59mFrontier
Sun 11/166:00 amDEN - SEA
1 stop8h 37mFrontier
Deal found 10/27$96
This Delta deal was found by Cheapflights users on 10/28. 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 12/127:35 pmSEA - DEN
Nonstop2h 46mDelta
Mon 12/156:05 amDEN - SEA
Nonstop3h 10mDelta
Deal found 10/28$97
This CheapOair deal was found by Cheapflights users on 10/29. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/121:37 pmSEA - DEN
Nonstop2h 53mFrontier
Sat 11/158:45 pmDEN - SEA
1 stop17h 52mFrontier
Deal found 10/29$98
This Delta deal was found by Cheapflights users on 10/28. 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 12/47:35 pmSEA - DEN
Nonstop2h 46mDelta
Sun 12/76:05 amDEN - SEA
Nonstop3h 10mDelta
Deal found 10/28$99
This Priceline deal was found by Cheapflights users on 10/28. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1111:01 amSEA - DEN
1 stop8h 11mFrontier
Sun 12/149:42 amDEN - SEA
Nonstop3h 11mFrontier
Deal found 10/28$102
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 12/53:40 pmSEA - DEN
Nonstop2h 48mFrontier
Fri 12/126:00 amDEN - SEA
1 stop11h 01mFrontier
Deal found 10/27$105
This Kiwi.com deal was found by Cheapflights users on 10/29. 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.
Tue 11/41:37 pmSEA - DEN
Nonstop2h 53mFrontier
Mon 11/1710:00 amDEN - SEA
Nonstop3h 13mFrontier
Deal found 10/29$106
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 11/142:22 pmSEA - DEN
Nonstop2h 51mFrontier
Sun 11/1610:00 amDEN - SEA
Nonstop3h 13mFrontier
Deal found 10/28$107
This Frontier deal was found by Cheapflights users on 10/29. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/41:37 pmSEA - DEN
Nonstop2h 53mFrontier
Sun 11/1610:00 amDEN - SEA
Nonstop3h 13mFrontier
Deal found 10/29$108

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Estes Park 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 2,558,603 searches. Data last updated October 29, 2025.
Use the filters below to find and compare flights from Seattle to Estes Park that are best for you.

Fly from

Seattle

Fly to

Estes Park

Route

Depart

Return

Price

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

Fri 12/12

7:35 pm-11:21 pm

Nonstop2h 46m

Denver Intl

Mon 12/15

6:05 am-8:15 am

Nonstop3h 10m

$97

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

Thu 12/4

7:35 pm-11:21 pm

Nonstop2h 46m

Denver Intl

Sun 12/7

6:05 am-8:15 am

Nonstop3h 10m

$99

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

Wed 12/10

9:25 am-6:00 pm

2 stops7h 35m

Denver Intl

Sun 12/14

8:30 am-10:40 am

Nonstop3h 10m

$128

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

Mon 11/17

5:20 am-10:35 am

1 stop4h 15m

Denver Intl

Wed 11/19

11:31 am-3:37 pm

1 stop5h 06m

$128

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

Thu 12/4

6:15 am-2:10 pm

2 stops6h 55m

Denver Intl

Sun 12/7

10:35 pm-12:35 am

Nonstop3h 00m

$128

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

Sun 12/14

7:55 am-11:44 am

Nonstop2h 49m

Denver Intl

Fri 12/19

6:02 am-8:10 am

Nonstop3h 08m

$133

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

Wed 11/19

10:54 am-2:41 pm

Nonstop2h 47m

Denver Intl

Wed 11/26

8:13 pm-10:20 pm

Nonstop3h 07m

$143

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

Wed 11/19

5:20 am-10:35 am

1 stop4h 15m

Denver Intl

Fri 11/28

6:14 am-8:26 am

Nonstop3h 12m

$143

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

Wed 11/19

5:20 am-10:35 am

1 stop4h 15m

Denver Intl

Sun 11/23

6:14 am-8:26 am

Nonstop3h 12m

$153

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

Fri 12/5

8:10 am-3:55 pm

1 stop6h 45m

Denver Intl

Sun 12/7

4:00 pm-9:30 pm

1 stop6h 30m

$156

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

Showing 1-10 of 20 results
1
2

Best time to book a flight from Seattle to Estes Park

Have a flexible travel schedule? Discover the best time to fly to Estes Park from Seattle with our price prediction graph.
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 Seattle to Estes Park

How far ahead should I book a flight from Seattle to Estes Park?

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Estes Park. Price data was last updated on October 24, 2025.

The price you pay for your flight from Seattle to Estes Park may vary depending on when you book. For the best chance of a lower fare, look to book 77 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 Seattle to Estes Park?

Currently, January is the cheapest month in which you can book a flight from Seattle to Estes Park (average of $46). Flying from Seattle to Estes Park in July is currently the most expensive (average of $110). 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.

What is the cheapest time of day to fly from SEA to ES9?

Find hourly flight availability from Seattle to Estes Park. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 29, 2025.

One of the essential ways to save on airfare from Seattle to Estes Park is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the afternoon could potentially save you up to 31% on airfare.

What is the cheapest day to fly from Seattle to Estes Park?

Use this chart to determine the cheapest time to fly round-trip from Seattle to Estes Park. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Seattle to Estes Park flight should consider departing on Monday mornings when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Estes Park

Get insights into the airlines that provide service to Estes Park. 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 Estes Park. Reviews last updated October 29, 2025.
Read through reviews of airlines operating flights from Seattle to Estes Park, such as Alaska Airlines, Southwest, and Delta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,206 reviews

Crew

8.5

Overall

8.0

Comfort

7.8

Food

7.1

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Alaska Airlines
8.0
Very good
11,206 reviews
Alaska Airlines
8.0
Very good
11,206 reviews

Crew

8.5

Overall

8.0

Comfort

7.8

Food

7.1

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Southwest
8.0
Very good
4,241 reviews
Alaska Airlines
8.0
Very good
11,206 reviews

Crew

8.5

Overall

8.0

Comfort

7.8

Food

7.1

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Delta
7.9
Good
7,993 reviews
Alaska Airlines
8.0
Very good
11,206 reviews

Crew

8.5

Overall

8.0

Comfort

7.8

Food

7.1

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
United Airlines
7.4
Good
9,001 reviews
Alaska Airlines
8.0
Very good
11,206 reviews

Crew

8.5

Overall

8.0

Comfort

7.8

Food

7.1

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Frontier
5.8
Fair
3,124 reviews
Alaska Airlines
8.0
Very good
11,206 reviews

Crew

8.5

Overall

8.0

Comfort

7.8

Food

7.1

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Estes Park. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Seattle to Estes Park?

    Seattle/Tacoma Intl (SEA), located 11.4 mi from the city center, is the airport you fly out of when you book flights from Seattle to Estes Park. 6 airlines have flights from Seattle/Tacoma Intl to Estes Park on a regular basis. Booking flights from Seattle/Tacoma Intl to Estes Park should not be difficult; the airport handles an average of 21 outbound flights to Estes Park per day.

  • How popular is this Seattle to Estes Park flight route?

    The Seattle/Tacoma Intl to Estes Park flight path was viewed by 308 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Seattle to Estes Park?

    Delta, Southwest, and Alaska Airlines can get you from Seattle to Estes Park in just under 2h 46m. Your travel time can differ by up to 4h 49m. The distance between Seattle and Estes Park is about 1022 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the most reliable airlines from Seattle to Estes Park?

    No one likes to see their flight delayed. When booking a flight from Seattle to Estes Park consider choosing Aeromexico (88%), LATAM Airlines (88%) or United Airlines (87%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Seattle to Estes Park?

    While on average a flight from Seattle to Estes Park is generally $666, our data shows the cheapest flight currently is $64. When looking at the most popular route, (Seattle/Tacoma Intl - Denver Intl), you can expect to pay $76 for that flight.

  • Can I find deals for flights from Seattle to Estes Park that include hotel bookings?

    Yes. In addition to deals on Seattle to Estes Park flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Estes Park?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Estes Park.

  • Can I find deals for business class flights from Seattle to Estes Park?

    Yes. Cheapflights offers flight deals from Seattle to Estes Park by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Seattle to Estes Park?

    Currently, January is the cheapest month in which you can book a flight from Seattle to Estes Park (average of $46). Flying from Seattle to Estes Park in July is currently the most expensive (average of $110). 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.

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Top 6 airlines flying from Seattle to Estes Park

Discover the top 6 airlines that operate flights from Seattle to Estes Park. 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 2,558,603 searches. Data last updated October 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$70Average$166FlexibilityNo cancel feeOn-time62%
Hawaiian AirlinesCheapest$87Average$233FlexibilityNo cancel feeOn-time85%
SouthwestCheapest$118Average$251FlexibilityNo cancel feeOn-time63%
DeltaCheapest$122Average$253FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$154Average$425FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$168Average$302FlexibilityNo cancel feeOn-time75%

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