$59+ 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 9/23. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — DEN
Oct 11 — Oct 181
1 adult, Economy
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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 October, booked 75 days in advance, depart on a Saturday or Friday 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 September 11, 2025.
Round-trip from | $86 (Frontier) |
|---|---|
One-way from | $59 (Cheapflightsfares) |
Popular in | June |
Cheapest in | January |
Average price | $162 |
Find flight deals from Pasadena to Denver
Cheapest flights from Pasadena to DenverExplore 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 September 11, 2025.
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 September 11, 2025.
This Frontier deal was found by Cheapflights users on 9/10. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/39:03 pmLAX - DEN
Nonstop2h 33mFrontier
Sat 10/46:39 pmDEN - LAX
Nonstop2h 34mFrontier
Deal found 9/10![Frontier logo]()
$87
This Cheapflightsfares deal was found by Cheapflights users on 9/10. 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.
Fri 10/106:44 amLAX - DEN
Nonstop2h 34mFrontier
Fri 10/176:00 amDEN - LAX
Nonstop2h 35mFrontier
Deal found 9/10![Frontier logo]()
$89
This Cheapflightsfares deal was found by Cheapflights users on 9/10. 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.
Fri 10/249:17 pmLAX - DEN
Nonstop2h 35mFrontier
Sun 10/266:00 amDEN - LAX
Nonstop2h 35mFrontier
Deal found 9/10![Frontier logo]()
$90
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/231:37 pmLAX - DEN
Nonstop2h 36mFrontier
Tue 9/3010:55 pmDEN - LAX
Nonstop2h 32mFrontier
Deal found 9/10![Frontier logo]()
$93
This Kiwi.com deal was found by Cheapflights users on 9/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/66:31 amLAX - DEN
Nonstop2h 32mFrontier
Sun 12/1410:51 pmDEN - LAX
Nonstop2h 39mFrontier
Deal found 9/11![Frontier logo]()
$94
This Cheapflightsfares deal was found by Cheapflights users on 9/10. 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.
Tue 9/237:20 amLAX - DEN
Nonstop2h 36mFrontier
Sat 10/46:39 pmDEN - LAX
Nonstop2h 34mFrontier
Deal found 9/10![Frontier logo]()
$98
This Frontier deal was found by Cheapflights users on 9/9. 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 9/276:45 amLAX - DEN
Nonstop2h 33mFrontier
Tue 9/3010:55 pmDEN - LAX
Nonstop2h 32mFrontier
Deal found 9/9![Frontier logo]()
$99
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/17:20 amLAX - DEN
Nonstop2h 36mMultiple Airlines
Tue 10/71:44 pmDEN - LAX
1 stop8h 41mMultiple Airlines
Deal found 9/10![Multiple Airlines logo]()
$103
This CheapOair deal was found by Cheapflights users on 9/10. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/17:20 amLAX - DEN
Nonstop2h 36mFrontier
Sat 10/1110:55 pmDEN - LAX
Nonstop2h 30mFrontier
Deal found 9/10![Frontier logo]()
$104
This Frontier deal was found by Cheapflights users on 9/10. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/24:31 pmLAX - DEN
1 stop5h 17mFrontier
Fri 10/36:34 pmDEN - LAX
Nonstop2h 34mFrontier
Deal found 9/10![Frontier logo]()
$106
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/13:32 pmLAX - DEN
1 stop11h 28mFrontier
Mon 10/610:55 pmDEN - LAX
Nonstop2h 32mFrontier
Deal found 9/10![Frontier logo]()
$107
This Cheapflightsfares deal was found by Cheapflights users on 9/10. 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.
Thu 10/96:44 amLAX - DEN
Nonstop2h 34mFrontier
Sun 10/126:00 amDEN - LAX
1 stop4h 26mFrontier
Deal found 9/10![Frontier logo]()
$108
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 September 11, 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 10/1
6:00 am-12:00 pm
1 stop5h 00m
Denver Intl
Tue 10/14
6:23 pm-11:54 pm
1 stop6h 31m
$137
Los AngelesDenver
LAX - DEN
LAXDEN
Los Angeles
Mon 11/10
10:21 am-9:49 pm
1 stop10h 28m
Denver Intl
Thu 11/13
6:00 am-3:22 pm
1 stop10h 22m
$143
Los AngelesDenver
LAX - DEN
LAXDEN
Los Angeles
Wed 9/24
1:23 pm-9:22 pm
1 stop6h 59m
Denver Intl
Mon 9/29
6:00 am-1:08 pm
1 stop8h 08m
$144
Los AngelesDenver
LAX - DEN
LAXDEN
Los Angeles
Sat 10/4
9:50 am-2:50 pm
1 stop4h 00m
Denver Intl
Wed 10/8
5:30 am-10:53 am
1 stop6h 23m
$145
Los AngelesDenver
LAX - DEN
LAXDEN
Los Angeles
Sat 11/1
5:45 am-11:47 am
1 stop5h 02m
Denver Intl
Sat 11/1
6:23 pm-10:50 pm
1 stop5h 27m
$153
Los AngelesDenver
LAX - DEN
LAXDEN
Los Angeles
Thu 10/2
8:04 am-11:28 am
Nonstop2h 24m
Denver Intl
Sun 10/5
6:30 am-8:01 am
Nonstop2h 31m
$157
Los AngelesDenver
LAX - DEN
LAXDEN
Los Angeles
Fri 10/3
7:00 pm-10:27 pm
Nonstop2h 27m
Denver Intl
Sun 10/5
8:00 am-9:30 am
Nonstop2h 30m
$165
Los AngelesDenver
LAX - DEN
LAXDEN
Los Angeles
Thu 10/9
12:54 pm-4:17 pm
Nonstop2h 23m
Denver Intl
Mon 10/13
6:00 am-7:30 am
Nonstop2h 30m
$165
Los AngelesDenver
LAX - DEN
LAXDEN
Los Angeles
Fri 10/17
8:25 pm-11:50 pm
Nonstop2h 25m
Denver Intl
Sun 10/19
6:15 am-7:45 am
Nonstop2h 30m
$165
Los AngelesDenver
LAX - DEN
LAXDEN
Los Angeles
Fri 10/3
2:59 pm-6:22 pm
Nonstop2h 23m
Denver Intl
Sun 10/5
6:30 am-8:01 am
Nonstop2h 31m
$165
Showing 1-10 of 24 results
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 August 29, 2025.
To ensure you get the cheapest price possible for a flight from Pasadena to Denver, you should look to book at least 75 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 September 11, 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 September 7, 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 afternoons 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 September 11, 2025.
The most flights from P4S to DEN are scheduled on a Thursday (96 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (55 on average).
How much does it cost to fly round-trip from Pasadena to Denver?
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 September 11, 2025.
Get a feel of what it's like to fly with Southwest, Delta, and United Airlines from Pasadena to Denver by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
8.0
Comfort
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentWalter,Aug 2025
OAK - SAN
Overall
8.0
Comfort
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentWalter,Aug 2025
OAK - SAN
Overall
8.0
Comfort
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentWalter,Aug 2025
OAK - SAN
Overall
8.0
Comfort
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentWalter,Aug 2025
OAK - SAN
Overall
8.0
Comfort
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentWalter,Aug 2025
OAK - SAN
Overall
8.0
Comfort
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentWalter,Aug 2025
OAK - SAN
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.
Traveling to a place near Denver?
Book flights to Denver if you plan to visit one of these locationsWestminster
Black Hawk
Golden
Winter Park
Broomfield
Greeley
Lone Tree
Lakewood
Cripple Creek
Thornton
Silverthorne
Frisco
Manitou Springs
Fort Morgan
Glendale
Wheat Ridge
Brighton
Longmont
Idaho Springs
Parker
Browse thousands of different options on Cheapflights for your next trip
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Alternative routes for Pasadena to Denver
See prices for flight routes from nearby airports that may be better suited for you.
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 September 11, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$44 | Average$161 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$116 | Average$250 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$121 | Average$279 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$135 | Average$309 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$149 | Average$252 | FlexibilityNo cancel fee | On-time71% |