Estes Park

$39+ 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 4/25. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — DEN
Feb 27 — Mar 61
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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Estes Park are usually found in January or February, booked 69 days in advance, depart on a Friday or Saturday and return on a Friday

Cheap 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 January 28, 2026.

This Cheapflightsfares deal was found by Cheapflights users on 1/27. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/1512:24 pm
SEA
-
DEN
Nonstop2h 51m
Frontier
Mon 3/239:10 am
DEN
-
SEA
Nonstop3h 09m
Frontier
Deal found 1/27$68
This Super.com deal was found by Cheapflights users on 1/27. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/612:24 pm
SEA
-
DEN
Nonstop2h 51m
Frontier
Sun 3/89:10 am
DEN
-
SEA
Nonstop3h 09m
Frontier
Deal found 1/27$71
This Cheapflightsfares deal was found by Cheapflights users on 1/28. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/166:57 pm
SEA
-
DEN
Nonstop2h 52m
Frontier
Sat 4/187:15 am
DEN
-
SEA
Nonstop3h 12m
Frontier
Deal found 1/28$72
This Booking.com deal was found by Cheapflights users on 1/27. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/1312:24 pm
SEA
-
DEN
Nonstop2h 51m
Frontier
Fri 3/209:10 am
DEN
-
SEA
Nonstop3h 09m
Frontier
Deal found 1/27$73
This Kiwi.com deal was found by Cheapflights users on 1/28. 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.
Thu 4/164:20 pm
SEA
-
DEN
Nonstop2h 51m
Frontier
Tue 4/217:15 am
DEN
-
SEA
Nonstop3h 12m
Frontier
Deal found 1/28$76
This Frontier deal was found by Cheapflights users on 1/27. 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.
Wed 4/156:57 pm
SEA
-
DEN
Nonstop2h 52m
Frontier
Sun 4/1912:51 pm
DEN
-
SEA
Nonstop3h 14m
Frontier
Deal found 1/27$77
This Kiwi.com deal was found by Cheapflights users on 1/27. 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.
Sun 2/2212:00 pm
SEA
-
DEN
Nonstop2h 51m
Frontier
Sun 3/18:45 am
DEN
-
SEA
Nonstop3h 10m
Frontier
Deal found 1/27$81
This Cheapflightsfares deal was found by Cheapflights users on 1/27. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/2712:00 pm
SEA
-
DEN
Nonstop2h 50m
Frontier
Sun 3/18:45 am
DEN
-
SEA
Nonstop3h 10m
Frontier
Deal found 1/27$82
This Kiwi.com deal was found by Cheapflights users on 1/27. 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.
Sun 3/812:24 pm
SEA
-
DEN
Nonstop2h 51m
Frontier
Mon 3/239:10 am
DEN
-
SEA
Nonstop3h 09m
Frontier
Deal found 1/27$83
This Kiwi.com deal was found by Cheapflights users on 1/27. 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.
Thu 4/304:20 pm
SEA
-
DEN
Nonstop2h 51m
Frontier
Sun 5/37:15 am
DEN
-
SEA
Nonstop3h 12m
Frontier
Deal found 1/27$87
This Frontier deal was found by Cheapflights users on 1/28. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/14:20 pm
SEA
-
DEN
Nonstop2h 51m
Frontier
Tue 5/57:15 am
DEN
-
SEA
Nonstop3h 12m
Frontier
Deal found 1/28$88

Find 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 January 28, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$68
(Cheapflightsfares)

One-way from

$39
(Kiwi.com)

Popular in

April

Cheapest in

January

Average price

$186
Provider with most accurate pricing for Seattle/Tacoma Intl-Denver Intl flight deals.
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Denver Intl flights.
From Seattle/Tacoma Intl to Estes Park
One-way flight from Seattle/Tacoma Intl to Estes Park
Highest demand for flights based on searches. 6% potential increase in price ($14 potential increase over avg. RT price).
Cheapest flight prices on average. 0% potential price decrease ($2 potential savings vs. average RT price).
Average for round-trip flights in January 2026

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 January 28, 2026.
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

Tue 2/24

8:15 am-12:15 pm

Nonstop3h 00m

Denver Intl

Wed 2/25

6:40 am-8:51 am

Nonstop3h 11m

$137

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

Tue 2/24

8:30 am-12:14 pm

Nonstop2h 44m

Denver Intl

Sat 2/28

6:16 pm-8:26 pm

Nonstop3h 10m

$137

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

Sun 2/22

7:40 pm-11:25 pm

Nonstop2h 45m

Denver Intl

Tue 3/3

6:50 pm-9:08 pm

Nonstop3h 18m

$137

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

Sat 2/21

8:14 pm-11:59 pm

Nonstop2h 45m

Denver Intl

Wed 2/25

7:00 am-9:10 am

Nonstop3h 10m

$137

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

Thu 2/19

7:40 pm-11:25 pm

Nonstop2h 45m

Denver Intl

Wed 2/25

6:40 am-8:51 am

Nonstop3h 11m

$137

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

Sat 2/21

3:16 pm-6:56 pm

Nonstop2h 40m

Denver Intl

Tue 2/24

7:00 am-9:10 am

Nonstop3h 10m

$137

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

Mon 2/23

7:40 pm-11:25 pm

Nonstop2h 45m

Denver Intl

Fri 2/27

6:40 am-8:51 am

Nonstop3h 11m

$138

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

Sat 2/21

3:25 pm-7:12 pm

Nonstop2h 47m

Denver Intl

Sun 2/22

7:45 am-9:49 am

Nonstop3h 04m

$154

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

Sat 3/21

6:00 am-9:40 am

Nonstop2h 40m

Denver Intl

Mon 3/30

5:20 pm-7:15 pm

Nonstop2h 55m

$157

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

Thu 2/26

5:00 am-8:35 am

Nonstop2h 35m

Denver Intl

Fri 2/27

10:55 am-6:50 pm

1 stop8h 55m

$167

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

Showing 1-10 of 23 results
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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 January 23, 2026.

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 69 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 $37). Flying from Seattle to Estes Park in July is currently the most expensive (average of $100). 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 January 28, 2026.

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 at noon could potentially save you up to 23% 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 January 24, 2026.

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

Weekly flight availability from Seattle to Estes Park

Explore weekly flight availability from Seattle to Estes Park. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated January 28, 2026.

The most flights from SEA to ES9 are scheduled on a Monday (35 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (10 on average).

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 January 28, 2026.
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.

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Overall

8.0

Crew

8.5

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Overall

8.0

Crew

8.5

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Overall

8.0

Crew

8.5

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Overall

8.0

Crew

8.5

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Overall

8.0

Crew

8.5

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Overall

8.0

Crew

8.5

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.

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 24 outbound flights to Estes Park per day.

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

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

    Delta and Alaska Airlines can get you from Seattle to Estes Park in just under 2h 44m. Your travel time will be generally consistent. The distance between Seattle and Estes Park is about 1022 mi. Most flights are nonstop.

  • What are the cheapest airlines to fly from Seattle to Estes Park one-way?

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $29. United Airlines flights start at $59 while deals on Delta start at $68 one-way.

  • 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 (100%), SkyWest Airlines (95%) or Virgin Atlantic (94%) 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 $757, our data shows the cheapest flight currently is $58. When looking at the most popular route, (Seattle/Tacoma Intl - Denver Intl), you can expect to pay $50 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 $37). Flying from Seattle to Estes Park in July is currently the most expensive (average of $100). 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.

See more FAQs

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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 January 28, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$58Average$164FlexibilityNo cancel feeOn-time62%
Hawaiian AirlinesCheapest$78Average$215FlexibilityNo cancel feeOn-time85%
DeltaCheapest$98Average$239FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$118Average$284FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$118Average$258FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$132Average$415FlexibilityNo cancel feeOn-time69%

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