Estes Park

$59+ 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 5/27. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — DEN
May 30 — Jun 61
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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Estes Park are usually found in January or October, booked 61 days in advance, depart on a Friday or Thursday 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 April 30, 2026.

This Kiwi.com deal was found by Cheapflights users on 4/27. 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 5/2811:21 am
SEA
-
DEN
1 stop12h 17m
Frontier
Wed 6/38:00 am
DEN
-
SEA
Nonstop3h 06m
Frontier
Deal found 4/27$118
This Cheapflightsfares deal was found by Cheapflights users on 4/27. 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.
Wed 5/2011:06 am
SEA
-
DEN
1 stop21h 58m
Frontier
Fri 5/298:00 am
DEN
-
SEA
Nonstop3h 06m
Frontier
Deal found 4/27$123
This Kiwi.com deal was found by Cheapflights users on 4/28. 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.
Wed 6/311:21 am
SEA
-
DEN
1 stop7h 45m
Frontier
Sun 6/78:00 am
DEN
-
SEA
Nonstop3h 06m
Frontier
Deal found 4/28$124
This Cheapflightsfares deal was found by Cheapflights users on 4/25. 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.
Mon 8/247:41 pm
SEA
-
DEN
Nonstop2h 55m
Frontier
Tue 9/17:45 am
DEN
-
SEA
Nonstop3h 03m
Frontier
Deal found 4/25$125
This Super.com deal was found by Cheapflights users on 4/25. 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.
Sat 6/67:50 pm
SEA
-
DEN
Nonstop3h 04m
Frontier
Wed 6/107:45 am
DEN
-
SEA
Nonstop3h 03m
Frontier
Deal found 4/25$126
This Frontier deal was found by Cheapflights users on 4/29. 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 6/93:33 pm
SEA
-
DEN
Nonstop2h 48m
Frontier
Tue 6/1612:14 pm
DEN
-
SEA
Nonstop3h 04m
Frontier
Deal found 4/29$127
This Kiwi.com deal was found by Cheapflights users on 4/28. 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.
Sun 5/318:20 pm
SEA
-
DEN
1 stop6h 05m
Frontier
Tue 6/28:00 am
DEN
-
SEA
Nonstop3h 06m
Frontier
Deal found 4/28$129
This Kiwi.com deal was found by Cheapflights users on 4/28. 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.
Wed 6/37:50 pm
SEA
-
DEN
Nonstop3h 04m
Frontier
Mon 6/88:41 am
DEN
-
SEA
1 stop11h 24m
Frontier
Deal found 4/28$131
This Super.com deal was found by Cheapflights users on 4/28. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/197:50 pm
SEA
-
DEN
Nonstop3h 04m
Frontier
Wed 5/207:50 am
DEN
-
SEA
Nonstop2h 59m
Frontier
Deal found 4/28$132
This Frontier deal was found by Cheapflights users on 4/27. 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.
Fri 5/227:50 pm
SEA
-
DEN
Nonstop3h 04m
Frontier
Sun 5/248:41 am
DEN
-
SEA
1 stop11h 24m
Frontier
Deal found 4/27$134
This Kiwi.com deal was found by Cheapflights users on 4/28. 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 5/298:20 pm
SEA
-
DEN
1 stop6h 05m
Frontier
Tue 6/28:00 am
DEN
-
SEA
Nonstop3h 06m
Frontier
Deal found 4/28$135

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 April 30, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$118
(Kiwi.com)

One-way from

$59
(Trip.com)

Popular in

June

Cheapest in

January

Average price

$237
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. 10% potential increase in price ($25 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
Average for round-trip flights in April 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 April 30, 2026.
Use the filters below to find and compare flights from Seattle to Estes Park that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

Sat 5/23

10:04 am-2:01 pm

Nonstop2h 57m

Denver Intl

Sat 5/23

7:21 pm-9:29 pm

Nonstop3h 08m

$247

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

Tue 5/19

6:50 am-1:40 pm

1 stop5h 50m

Denver Intl

Wed 5/20

2:50 pm-9:00 pm

2 stops7h 10m

$283

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

Tue 5/26

11:40 am-8:40 pm

2 stops8h 00m

Denver Intl

Tue 6/2

2:50 pm-9:00 pm

2 stops7h 10m

$293

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

Wed 6/3

6:50 am-3:05 pm

2 stops7h 15m

Denver Intl

Mon 6/8

1:25 pm-7:30 pm

2 stops7h 05m

$302

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

Sat 10/3

2:00 pm-9:18 pm

1 stop6h 18m

Denver Intl

Tue 10/6

9:00 am-11:04 am

Nonstop3h 04m

$305

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

Thu 6/4

7:30 am-4:05 pm

2 stops7h 35m

Denver Intl

Sun 6/7

5:00 pm-11:55 pm

2 stops7h 55m

$307

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

Sat 7/4

7:25 pm-11:00 pm

Nonstop2h 35m

Denver Intl

Tue 7/7

5:30 pm-11:30 pm

2 stops7h 00m

$310

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

Sat 10/3

9:55 am-6:12 pm

1 stop7h 17m

Denver Intl

Sat 10/10

7:02 pm-11:00 pm

1 stop4h 58m

$315
Quickest round-trip

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

Sun 8/2

7:59 pm-11:44 pm

Nonstop2h 45m

Denver Intl

Sat 8/8

12:57 pm-3:02 pm

Nonstop3h 05m

$316

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

Wed 7/15

7:30 am-5:05 pm

2 stops8h 35m

Denver Intl

Wed 7/22

7:25 pm-11:30 pm

1 stop5h 05m

$320

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 23 resultsSorted by cheapest first
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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

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 April 30, 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 in the evening could potentially save you up to 24% 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 April 25, 2026.

Travelers seeking maximum savings on their Seattle to Estes Park flight should consider departing on Friday evenings 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.

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 April 30, 2026.

The most flights from SEA to ES9 are scheduled on a Wednesday (30 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (14 on average).

How much does it cost to fly round-trip from Seattle to Estes Park?

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 April 30, 2026.
Read through reviews of airlines operating flights from Seattle to Estes Park, such as Southwest,Alaska Airlines, andDelta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Crew

8.6

Food

7.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Crew

8.6

Food

7.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Crew

8.6

Food

7.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Crew

8.6

Food

7.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Crew

8.6

Food

7.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Crew

8.6

Food

7.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

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 22 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?

    Alaska Airlines and Southwest can get you from Seattle to Estes Park in just under 2h 57m. Your travel time can differ by up to 2h 53m. 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 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 $58 while deals on Delta start at $60 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 Condor (96%), STARLUX Airlines (95%) or Icelandair (92%) 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 $729, our data shows the cheapest flight currently is $89. When looking at the most popular route, (Seattle/Tacoma Intl - Denver Intl), you can expect to pay $133 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.

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 April 30, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$56Average$168FlexibilityNo cancel feeOn-time62%
Hawaiian AirlinesCheapest$78Average$225FlexibilityNo cancel feeOn-time85%
DeltaCheapest$95Average$234FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$117Average$290FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$117Average$253FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$130Average$433FlexibilityNo cancel feeOn-time69%

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