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Estes Park

$78+ Cheap flights from San Diego (SAN) 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 10/14. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — DEN
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheapflights Tip: The best prices from San Diego to Estes Park are usually found in January or February, booked 44 days in advance, depart on a Saturday or Thursday and return on a Tuesday

Cheap flight deals from San Diego to Estes Park

Keep the following information in mind while searching for San Diego to Estes Park flight deals. Data was last updated June 12, 2025.

Round-trip from

$127
(Cheapflightsfares)

One-way from

$79
(United Airlines)

Popular in

March

Cheapest in

January

Average price

$235
From San Diego to Estes Park
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One-way flight from San Diego to Estes Park
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Highest demand for flights based on searches. 3% potential increase in price ($8 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find flight deals from San Diego to Estes Park

Cheapest flights from San Diego to Estes Park
Explore the most affordable flight options available from San Diego to Estes Park. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 6/10. 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 7/96:25 amSAN - DEN
Nonstop2h 37mFrontier
Wed 7/169:44 amDEN - SAN
Nonstop2h 26mFrontier
Deal found 6/10$127
This American Airlines deal was found by Cheapflights users on 6/12. 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.
Tue 9/238:15 amSAN - DEN
1 stop5h 12mAmerican Airlines
Sat 9/273:07 pmDEN - SAN
1 stop5h 17mAmerican Airlines
Deal found 6/12$177
This Delta deal was found by Cheapflights users on 6/11. 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.
Sat 7/269:59 amSAN - DEN
1 stop7h 18mDelta
Sat 8/25:30 amDEN - SAN
1 stop4h 08mDelta
Deal found 6/11$217
This Southwest deal was found by Cheapflights users on 6/10. 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 12/136:30 amSAN - DEN
Nonstop2h 30mSouthwest
Mon 12/151:30 pmDEN - SAN
1 stop4h 25mSouthwest
Deal found 6/10$266
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/238:05 amSAN - DEN
2 stops11h 22mAlaska Airlines
Wed 9/249:23 pmDEN - SAN
1 stop13h 51mAlaska Airlines
Deal found 6/10$282

Cheapflights Fare Finder

Customize your flight search to find flights from San Diego 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 June 12, 2025.
Use the filters below to find and compare flights from San Diego to Estes Park that are best for you.

Fly from

San Diego

Fly to

Estes Park

Route

Depart

Return

Price

San DiegoDenver

SAN - DEN

SANDEN

San Diego

Wed 7/9

6:25 am-10:02 am

Nonstop2h 37m

Denver Intl

Wed 7/16

9:44 am-11:10 am

Nonstop2h 26m

$127

San DiegoDenver

SAN - DEN

SANDEN

San Diego

Tue 9/23

8:15 am-2:27 pm

1 stop5h 12m

Denver Intl

Sat 9/27

3:07 pm-7:24 pm

1 stop5h 17m

$177

San DiegoDenver

SAN - DEN

SANDEN

San Diego

Sat 7/26

9:45 am-3:00 pm

1 stop4h 15m

Denver Intl

Tue 8/12

7:21 pm-10:54 pm

1 stop4h 33m

$217

San DiegoDenver

SAN - DEN

SANDEN

San Diego

Tue 7/29

7:35 pm-11:00 pm

Nonstop2h 25m

Denver Intl

Thu 7/31

5:35 am-9:15 am

1 stop4h 40m

$225

San DiegoDenver

SAN - DEN

SANDEN

San Diego

Tue 9/23

8:05 am-8:27 pm

2 stops11h 22m

Denver Intl

Wed 9/24

9:23 pm-10:14 am

1 stop13h 51m

$282

San DiegoDenver

SAN - DEN

SANDEN

San Diego

Tue 10/14

8:19 pm-11:47 pm

Nonstop2h 28m

$78

San DiegoDenver

SAN - DEN

SANDEN

San Diego

Tue 9/16

12:52 pm-4:20 pm

Nonstop2h 28m

$79

San DiegoDenver

SAN - DEN

SANDEN

San Diego

Mon 8/11

1:03 pm-4:00 am

1 stop13h 57m

$82

San DiegoDenver

SAN - DEN

SANDEN

San Diego

Tue 7/8

6:15 am-7:19 pm

1 stop12h 04m

$83

San DiegoDenver

SAN - DEN

SANDEN

San Diego

Tue 10/14

10:24 am-6:08 pm

1 stop6h 44m

$88

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

Showing 1-10 of 13 results
1
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Best time to book a flight from San Diego to Estes Park

Have a flexible travel schedule? Discover the best time to fly to Estes Park from San Diego 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 San Diego to Estes Park

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

Use this chart to determine the optimal time to book a round-trip flight from San Diego to Estes Park. Price data was last updated on June 9, 2025.

The best time to book flights from San Diego to Estes Park is 44 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from San Diego to Estes Park?

Currently, October is the cheapest month in which you can book a flight from San Diego to Estes Park (average of $197). Flying from San Diego to Estes Park in March is currently the most expensive (average of $278). 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 SAN to ES9?

Find hourly flight availability from San Diego 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 June 12, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from San Diego to Estes Park as you normally would.

What is the cheapest day to fly from San Diego to Estes Park?

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

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

Weekly flight availability from San Diego to Estes Park

Explore weekly flight availability from San Diego 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 June 12, 2025.

The most flights from SAN to ES9 are scheduled on a Thursday (26 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (10 on average).

Rainfall in Estes Park by month

Plan your trip to Estes Park by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Estes Park ranges from 0.5 - 2.3 inches per month. May is typically the wettest month, when rainfall can reach 2.3 in. January is typically the driest time to visit Estes Park when rainfall is around 0.5 in.

Temperature in Estes Park by month

Plan your trip to Estes Park by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Estes Park, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

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 June 12, 2025.
Read reviews from past customers who have flown Alaska Airlines, Southwest and Delta from San Diego to Estes Park. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

Find useful and relevant information for your journey from San Diego 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 San Diego to Estes Park?

    If you book a flight to Estes Park from San Diego, you will be flying from San Diego, which is the city’s only airport. San Diego (SAN) is located 2.6 mi from the center of San Diego. There are 20 flights from San Diego to Estes Park per day from 6 different airlines.

  • How popular is this San Diego to Estes Park flight route?

    Within the past month, 165 users have taken a look at flights from San Diego to Estes Park.

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

    The cheapest airline one-way is United Airlines, with whom users have recently found tickets for as low as $79. However, be on the lookout for offers from Frontier and Southwest, as they are both options that can get you from San Diego to Estes Park for a low price.

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

    Before booking your flight to Estes Park from San Diego, check out the most reliable airlines to get you to your destination on time: Sun Country Air (100%), United Airlines (78%), Air Canada( 77%).

  • What are the cheapest flights from San Diego to Estes Park?

    On average you can expect to pay $1,087 for a flight from San Diego to Estes Park. The cheapest flight overall is $75 while the most popular route, (San Diego - Denver Intl) is currently priced at $121.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from San Diego 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 San Diego to Estes Park?

    Currently, October is the cheapest month in which you can book a flight from San Diego to Estes Park (average of $197). Flying from San Diego to Estes Park in March is currently the most expensive (average of $278). 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 San Diego to Estes Park

Discover the top 6 airlines that operate flights from San Diego 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$58Average$156FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$167Average$425FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$176Average$274FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$177Average$245FlexibilityNo cancel feeOn-time75%
DeltaCheapest$196Average$306FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$197Average$325FlexibilityNo cancel feeOn-time71%

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