HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Denver

$45+ Cheap flights from Pasadena, CA to Denver (DEN)

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 5/12. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — DEN
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Pasadena to Denver with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Pasadena to Denver Intl are usually found in January or September, booked 31 days in advance, depart on a Saturday or Wednesday and return on a Friday

Cheap flight deals from Pasadena to Denver

Keep the following information in mind while searching for Pasadena to Denver flight deals. Data was last updated March 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$98
(Cheapflightsfares)

One-way from

$45
(eDestinos)

Popular in

March

Cheapest in

January

Average price

$218
Provider with most accurate pricing for Los Angeles-Denver Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Los Angeles-Denver Intl flights.
Search Deals
From Pasadena to Denver Intl
Search Deals
One-way flight from Pasadena to Denver Intl
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($5 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($3 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2025
Search Deals

Find flight deals from Pasadena to Denver

Cheapest flights from Pasadena to Denver
Explore the most affordable flight options available from Pasadena to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 28, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 3/27. 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 4/306:15 amLAX - DEN
Nonstop2h 31mFrontier
Sat 5/38:15 amDEN - LAX
Nonstop2h 37mFrontier
Deal found 3/27$98
This Orbitz deal was found by Cheapflights users on 3/27. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/261:38 pmLAX - DEN
Nonstop2h 35mMultiple Airlines
Mon 4/286:37 pmDEN - LAX
1 stop6h 22mMultiple Airlines
Deal found 3/27$149
This Southwest deal was found by Cheapflights users on 3/27. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/268:30 amLAX - DEN
Nonstop2h 30mSouthwest
Sun 4/276:05 amDEN - LAX
Nonstop2h 30mSouthwest
Deal found 3/27$157
This Delta deal was found by Cheapflights users on 3/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/268:30 pmLAX - DEN
Nonstop2h 24mDelta
Thu 6/57:17 pmDEN - LAX
Nonstop2h 36mDelta
Deal found 3/27$179
This Alaska Airlines deal was found by Cheapflights users on 3/27. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/232:16 pmLAX - DEN
1 stop5h 59mAlaska Airlines
Wed 4/307:00 amDEN - LAX
1 stop6h 56mAlaska Airlines
Deal found 3/27$192
This Hawaiian Airlines deal was found by Cheapflights users on 3/27. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/254:08 pmLAX - DEN
1 stop6h 51mHawaiian Airlines
Mon 4/286:37 pmDEN - LAX
1 stop6h 22mHawaiian Airlines
Deal found 3/27$207
This American Airlines deal was found by Cheapflights users on 3/26. 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.
Sat 6/144:32 pmLAX - DEN
1 stop4h 10mAmerican Airlines
Tue 6/2411:40 amDEN - LAX
Nonstop2h 50mAmerican Airlines
Deal found 3/26$218
This United Airlines deal was found by Cheapflights users on 3/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/215:20 pmLAX - DEN
Nonstop2h 27mUnited Airlines
Sun 8/249:05 pmDEN - LAX
Nonstop2h 29mUnited Airlines
Deal found 3/26$237
This Cheapflightsfares deal was found by Cheapflights users on 3/27. 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.
Mon 5/2611:59 pmLAX - DEN
1 stop10h 28mSun Country Air
Thu 5/296:30 pmDEN - LAX
1 stop14h 54mSun Country Air
Deal found 3/27$260

Cheapflights Fare Finder

Customize your flight search to find flights from Pasadena to Denver 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 March 28, 2025.
Use the filters below to find and compare flights from Pasadena to Denver that are best for you.

Fly from

Pasadena

Fly to

Denver

Route

Depart

Return

Price

Los AngelesDenver

LAX - DEN

LAXDEN

Los Angeles

Wed 4/30

6:15 am-9:46 am

Nonstop2h 31m

Denver Intl

Sat 5/3

8:15 am-9:52 am

Nonstop2h 37m

$98

Los AngelesDenver

LAX - DEN

LAXDEN

Los Angeles

Sat 4/26

8:30 am-12:00 pm

Nonstop2h 30m

Denver Intl

Sun 4/27

7:05 am-8:38 am

Nonstop2h 33m

$137

Los AngelesDenver

LAX - DEN

LAXDEN

Los Angeles

Sat 4/26

1:38 pm-5:13 pm

Nonstop2h 35m

Denver Intl

Mon 4/28

6:37 pm-11:59 pm

1 stop6h 22m

$149

Los AngelesDenver

LAX - DEN

LAXDEN

Los Angeles

Sat 4/26

8:30 am-12:00 pm

Nonstop2h 30m

Denver Intl

Sun 4/27

6:05 am-7:35 am

Nonstop2h 30m

$157

Los AngelesDenver

LAX - DEN

LAXDEN

Los Angeles

Wed 4/23

2:16 pm-9:15 pm

1 stop5h 59m

Denver Intl

Wed 4/30

7:00 am-12:56 pm

1 stop6h 56m

$192

Los AngelesDenver

LAX - DEN

LAXDEN

Los Angeles

Fri 4/25

4:08 pm-11:59 pm

1 stop6h 51m

Denver Intl

Mon 4/28

6:37 pm-11:59 pm

1 stop6h 22m

$207

Los AngelesDenver

LAX - DEN

LAXDEN

Los Angeles

Fri 4/18

4:27 pm-7:49 pm

Nonstop2h 22m

Denver Intl

Mon 4/21

8:09 am-11:51 am

1 stop4h 42m

$217

Los AngelesDenver

LAX - DEN

LAXDEN

Los Angeles

Thu 8/21

5:20 pm-8:47 pm

Nonstop2h 27m

Denver Intl

Sun 8/24

9:05 pm-10:34 pm

Nonstop2h 29m

$237

Los AngelesDenver

LAX - DEN

LAXDEN

Los Angeles

Mon 5/26

11:59 pm-11:27 am

1 stop10h 28m

Denver Intl

Thu 5/29

6:30 pm-8:24 am

1 stop14h 54m

$260

Los AngelesDenver

LAX - DEN

LAXDEN

Los Angeles

Mon 5/12

6:15 am-9:48 am

Nonstop2h 33m

$45

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Showing 1-10 of 18 results
1
2

Best time to book a flight from Pasadena to Denver

Have a flexible travel schedule? Discover the best time to fly to Denver from Pasadena 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 Pasadena to Denver

How far ahead should I book a flight from Pasadena to Denver?

Use this chart to determine the optimal time to book a round-trip flight from Pasadena to Denver. Price data was last updated on March 21, 2025.

To ensure you get the cheapest price possible for a flight from Pasadena to Denver, you should look to book at least 31 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Pasadena to Denver?

Currently, October is the cheapest month in which you can book a flight from Pasadena to Denver (average of $197). Flying from Pasadena to Denver 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 P4S to DEN?

Find hourly flight availability from Pasadena to Denver. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 28, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Pasadena to Denver as you normally would.

What is the cheapest day to fly from Pasadena to Denver?

Use this chart to determine the cheapest time to fly round-trip from Pasadena to Denver. Price data was last updated on March 23, 2025.

Travelers seeking maximum savings on their Pasadena to Denver flight should consider departing on Saturday afternoons when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Pasadena to Denver

Explore weekly flight availability from Pasadena to Denver. 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 March 28, 2025.

The most flights from P4S to DEN are scheduled on a Thursday (87 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (25 on average).

Rainfall in Denver by month

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

In terms of precipitation, rainfall in Denver 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 Denver when rainfall is around 0.5 in.

Temperature in Denver by month

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

If weather is an important factor for your trip to Denver, 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 Denver

Get insights into the airlines that provide service to Denver. 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 Denver. Reviews last updated March 28, 2025.
See what other customers who have flown with Southwest, Alaska Airlines and Delta from Pasadena to Denver have to say. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,273 reviews

Crew

8.6

Food

7.1

Overall

8.1

Entertainment

7.6

Comfort

8.1

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
Southwest
8.1
Very good
4,273 reviews
Southwest
8.1
Very good
4,273 reviews

Crew

8.6

Food

7.1

Overall

8.1

Entertainment

7.6

Comfort

8.1

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
Alaska Airlines
8.0
Very good
9,798 reviews
Southwest
8.1
Very good
4,273 reviews

Crew

8.6

Food

7.1

Overall

8.1

Entertainment

7.6

Comfort

8.1

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
Delta
8.0
Very good
7,896 reviews
Southwest
8.1
Very good
4,273 reviews

Crew

8.6

Food

7.1

Overall

8.1

Entertainment

7.6

Comfort

8.1

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
Hawaiian Airlines
7.9
Good
2,335 reviews
Southwest
8.1
Very good
4,273 reviews

Crew

8.6

Food

7.1

Overall

8.1

Entertainment

7.6

Comfort

8.1

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
United Airlines
7.4
Good
8,603 reviews
Southwest
8.1
Very good
4,273 reviews

Crew

8.6

Food

7.1

Overall

8.1

Entertainment

7.6

Comfort

8.1

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Related info for your journey

Find useful and relevant information for your journey from Pasadena to Denver. 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 into for flights to Denver from Pasadena?

    Located just 18.5 mi from the city center, Denver Intl is the airport most travelers will use when flying to Denver from Pasadena. Booking flights from Pasadena to Denver Intl (DEN) should be relatively easy as there are 54 daily inbound flights from Pasadena from 5 different airlines.

  • How popular is this Pasadena to Denver flight route?

    Within the past month, 378 users have taken a look at flights from Pasadena to Denver Intl.

  • What are the cheapest airlines to fly from Pasadena to Denver one-way?

    $45 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on United Airlines and Delta, with prices starting from $69 and $89, respectively.

  • What are the most reliable airlines from Pasadena to Denver?

    The top 3 most reliable airlines when flying from Pasadena to Denver are Air China (99%), Singapore Airlines (94%) and Avianca (94%).

  • What are the cheapest flights from Pasadena to Denver?

    Looking at all options, your cheapest flight can be booked for $58. While the most popular route (Los Angeles - Denver Intl) can be booked for $96 on average our data indicates $664 when flying from Pasadena to Denver.

  • Can I find deals for flights from Pasadena to Denver that include hotel bookings?

    Yes. In addition to deals on Pasadena to Denver flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Pasadena to Denver?

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

  • Can I find deals for business class flights from Pasadena to Denver?

    Yes. Cheapflights offers flight deals from Pasadena to Denver 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 Pasadena to Denver?

    Currently, October is the cheapest month in which you can book a flight from Pasadena to Denver (average of $197). Flying from Pasadena to Denver 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.

See more FAQs

Traveling to a place near Pasadena?

Book flights to Pasadena if you plan to visit one of these locations
Westminster
Lakewood
Black Hawk
Winter Park
Broomfield
Cripple Creek
Silverthorne
Golden
Brighton
Greeley
Frisco
Wheat Ridge
Grand Lake
Idaho Springs
Central City
Copper Mountain
Longmont
Thornton
Limon
Dillon

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Pasadena to Denver

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Denver flights
San Francisco to Denver flights
Ontario to Denver flights
San Diego to Denver flights
Santa Ana to Denver flights
San Jose to Denver flights
Sacramento to Denver flights
Las Vegas to Denver flights
Oakland to Denver flights
Burbank to Denver flights
Long Beach to Denver flights
Reno to Denver flights
San Luis Obispo to Denver flights
Los Angeles to Aspen flights
Palm Springs to Denver flights
Santa Barbara to Denver flights
Los Angeles to Colorado Springs flights
Fresno to Denver flights
San Francisco to Aspen flights
Medford to Denver flights
Ontario to Colorado Springs flights
Los Angeles to Durango flights
Ontario to Aspen flights
Santa Rosa to Denver flights
San Diego to Colorado Springs flights
San Francisco to Grand Junction flights
Las Vegas to Colorado Springs flights
Sacramento to Colorado Springs flights
Monterey to Denver flights
Redding to Denver flights
San Francisco to Colorado Springs flights
San Francisco to Montrose flights
San Jose to Colorado Springs flights
Santa Ana to Colorado Springs flights
Bakersfield to Denver flights
Los Angeles to Grand Junction flights
San Francisco to Vail flights
Arcata to Denver flights
Los Angeles to Montrose flights
San Diego to Aspen flights
Burbank to Colorado Springs flights
San Francisco to Gunnison flights
San Diego to Hayden flights
Ontario to Durango flights
Oakland to Colorado Springs flights
San Diego to Vail flights
Los Angeles to Vail flights
Long Beach to Colorado Springs flights
Ontario to Montrose flights
Sacramento to Durango flights

Top 5 airlines flying from Pasadena to Denver

Discover the top 5 airlines that operate flights from Pasadena to Denver. 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 March 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$38Average$120FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$97Average$278FlexibilityNo cancel feeOn-time63%
DeltaCheapest$111Average$267FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$140Average$304FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$143Average$242FlexibilityNo cancel feeOn-time71%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.