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Palo Alto

$78+ Cheap flights from Denver (DEN) to Palo Alto, CA

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 10/7. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SFO
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
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Cheapflights Tip: The best prices from Denver Intl to Palo Alto are usually found in February or January, booked 81 days in advance, depart on a Friday or Thursday and return on a Friday

Cheap flight deals from Denver to Palo Alto

Keep the following information in mind while searching for Denver to Palo Alto flight deals. Data was last updated September 16, 2025.

Round-trip from

$105
(Frontier)

One-way from

$78
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$217
From Denver Intl to Palo Alto
Search Deals
One-way flight from Denver Intl to Palo Alto
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($42 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Denver to Palo Alto

Cheapest flights from Denver to Palo Alto
Explore the most affordable flight options available from Denver to Palo Alto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2025.

This Frontier deal was found by Cheapflights users on 9/15. 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.
Mon 10/2010:29 pmDEN - SFO
Nonstop2h 45mFrontier
Fri 10/248:21 pmSFO - DEN
Nonstop2h 41mFrontier
Deal found 9/15$105
This Cheapflightsfares deal was found by Cheapflights users on 9/15. 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 11/710:29 pmDEN - SFO
Nonstop2h 45mFrontier
Sat 11/84:49 pmSFO - DEN
1 stop5h 10mFrontier
Deal found 9/15$107
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 10/218:39 pmDEN - SFO
Nonstop2h 48mFrontier
Wed 11/196:34 amSFO - DEN
Nonstop2h 44mFrontier
Deal found 9/14$108
This Cheapflightsfares deal was found by Cheapflights users on 9/13. 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 11/710:29 pmDEN - SFO
Nonstop2h 45mFrontier
Sun 11/166:33 pmSFO - DEN
1 stop8h 26mFrontier
Deal found 9/13$109
This CheapOair deal was found by Cheapflights users on 9/14. 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.
Thu 11/67:45 amDEN - SFO
Nonstop2h 48mFrontier
Sat 11/86:34 amSFO - DEN
Nonstop2h 44mFrontier
Deal found 9/14$110
This Priceline deal was found by Cheapflights users on 9/14. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2310:29 pmDEN - SFO
Nonstop2h 45mFrontier
Sat 10/2510:24 amSFO - DEN
1 stop6h 33mFrontier
Deal found 9/14$111
This Cheapflightsfares deal was found by Cheapflights users on 9/16. 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 10/36:30 amDEN - SFO
Nonstop2h 45mFrontier
Wed 10/86:34 amSFO - DEN
Nonstop2h 44mFrontier
Deal found 9/16$112
This Frontier deal was found by Cheapflights users on 9/14. 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 9/238:41 pmDEN - SFO
Nonstop2h 49mFrontier
Sun 10/56:29 amSFO - DEN
Nonstop2h 39mFrontier
Deal found 9/14$113
This Cheapflightsfares deal was found by Cheapflights users on 9/14. 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 10/310:29 pmDEN - SFO
Nonstop2h 47mFrontier
Mon 10/67:07 pmSFO - DEN
Nonstop2h 41mFrontier
Deal found 9/14$114
This Frontier deal was found by Cheapflights users on 9/14. 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 10/36:30 amDEN - SFO
Nonstop2h 45mFrontier
Tue 10/76:34 amSFO - DEN
Nonstop2h 44mFrontier
Deal found 9/14$115
This Kiwi.com deal was found by Cheapflights users on 9/16. 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 10/3110:29 pmDEN - SFO
Nonstop2h 45mFrontier
Fri 11/78:09 pmSFO - DEN
Nonstop2h 41mFrontier
Deal found 9/16$116
This Cheapflightsfares deal was found by Cheapflights users on 9/16. 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 10/307:45 amDEN - SFO
Nonstop2h 48mFrontier
Sun 11/28:09 pmSFO - DEN
Nonstop2h 41mFrontier
Deal found 9/16$118

Cheapflights Fare Finder

 
Customize your flight search to find flights from Denver to Palo Alto 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 16, 2025.
Use the filters below to find and compare flights from Denver to Palo Alto that are best for you.

Fly from

Denver

Fly to

Palo Alto

Route

Depart

Return

Price

DenverSan Francisco

DEN - SFO

DENSFO

Denver Intl

Mon 11/24

6:00 am-7:50 am

Nonstop2h 50m

San Francisco

Mon 12/22

5:00 am-8:40 am

Nonstop2h 40m

$157

DenverSan Francisco

DEN - SFO

DENSFO

Denver Intl

Thu 11/27

3:00 pm-4:40 pm

Nonstop2h 40m

San Francisco

Tue 12/2

2:35 pm-9:35 pm

1 stop6h 00m

$167

DenverSan Francisco

DEN - SFO

DENSFO

Denver Intl

Sat 10/11

3:55 pm-5:36 pm

Nonstop2h 41m

San Francisco

Mon 10/13

8:52 pm-12:29 am

Nonstop2h 37m

$176

DenverSan Francisco

DEN - SFO

DENSFO

Denver Intl

Thu 10/23

8:30 pm-10:05 pm

Nonstop2h 35m

San Francisco

Sun 10/26

8:30 pm-11:55 pm

Nonstop2h 25m

$177

DenverSan Francisco

DEN - SFO

DENSFO

Denver Intl

Tue 11/4

7:25 am-11:30 am

1 stop5h 05m

San Francisco

Mon 11/10

5:55 am-1:30 pm

2 stops6h 35m

$178

DenverSan Francisco

DEN - SFO

DENSFO

Denver Intl

Thu 11/6

5:40 am-10:35 am

1 stop5h 55m

San Francisco

Mon 11/10

5:55 am-1:30 pm

2 stops6h 35m

$182

DenverSan Francisco

DEN - SFO

DENSFO

Denver Intl

Tue 10/21

3:00 pm-8:25 pm

2 stops6h 25m

San Francisco

Sat 10/25

6:00 am-4:55 pm

1 stop9h 55m

$182

DenverSan Francisco

DEN - SFO

DENSFO

Denver Intl

Wed 10/22

5:50 am-12:20 pm

2 stops7h 30m

San Francisco

Sat 10/25

4:35 pm-10:25 pm

1 stop4h 50m

$182

DenverSan Francisco

DEN - SFO

DENSFO

Denver Intl

Fri 12/5

8:20 am-9:46 pm

1 stop14h 26m

San Francisco

Tue 12/9

7:00 am-7:24 pm

1 stop11h 24m

$189

DenverSan Francisco

DEN - SFO

DENSFO

Denver Intl

Tue 11/11

8:00 am-9:50 am

Nonstop2h 50m

$79

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 20 results
1
2

Best time to book a flight from Denver to Palo Alto

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

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

Use this chart to determine the optimal time to book a round-trip flight from Denver to Palo Alto. Price data was last updated on September 12, 2025.

To ensure you get the cheapest price possible for a flight from Denver to Palo Alto, you should look to book at least 81 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 Denver to Palo Alto?

Currently, January is the cheapest month in which you can book a flight from Denver to Palo Alto (average of $276). Flying from Denver to Palo Alto in June is currently the most expensive (average of $357). 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 DEN to P4L?

Find hourly flight availability from Denver to Palo Alto. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 16, 2025.

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

What is the cheapest day to fly from Denver to Palo Alto?

Use this chart to determine the cheapest time to fly round-trip from Denver to Palo Alto. Price data was last updated on October 27, 2024.

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

Weekly flight availability from Denver to Palo Alto

Explore weekly flight availability from Denver to Palo Alto. 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 16, 2025.

The most flights from DEN to P4L are scheduled on a Monday (50 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (36 on average).

Reviews of airlines servicing Palo Alto

Get insights into the airlines that provide service to Palo Alto. 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 Palo Alto. Reviews last updated September 16, 2025.
Get a feel of what it's like to fly with Southwest, United Airlines, and Frontier from Denver to Palo Alto by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,242 reviews

Food

7.0

Comfort

8.0

Entertainment

7.5

Overall

8.0

Boarding

8.1

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Food

7.0

Comfort

8.0

Entertainment

7.5

Overall

8.0

Boarding

8.1

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
United Airlines
7.4
Good
8,924 reviews
Southwest
8.0
Very good
4,242 reviews

Food

7.0

Comfort

8.0

Entertainment

7.5

Overall

8.0

Boarding

8.1

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Frontier
5.8
Fair
3,174 reviews
Southwest
8.0
Very good
4,242 reviews

Food

7.0

Comfort

8.0

Entertainment

7.5

Overall

8.0

Boarding

8.1

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Related info for your journey

Find useful and relevant information for your journey from Denver to Palo Alto. 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 Denver to Palo Alto?

    For a flight from Denver to Palo Alto, you will be flying from Denver Intl. Denver Intl (DEN) is just 18.5 mi from the center of the city. Denver Intl is the only Denver airport and it handles 43 outbound flights to Palo Alto per day. 5 airlines have flights to Palo Alto from Denver Intl on a regular basis.

  • How popular is this Denver to Palo Alto flight route?

    Flights from Denver Intl to Palo Alto have been viewed 113 times in the past calendar month.

  • How long is the flight from Denver to Palo Alto?

    Airlines like United Airlines and Southwest fly from Denver to Palo Alto in about 2h 40m. The time it takes to get you to your destination is usually consistent. Denver and Palo Alto are separated by a distance of 964 mi. All flights are typically nonstop.

  • What are the most reliable airlines from Denver to Palo Alto?

    Before booking your flight to Palo Alto from Denver, check out the most reliable airlines to get you to your destination on time: Emirates (84%), Air China (79%), ANA( 74%).

  • What are the cheapest flights from Denver to Palo Alto?

    The cheapest flight price from Denver to Palo Alto is $63. On average you can expect to pay $787. The most popular route, (Denver Intl - San Francisco), can usually be booked for $77.

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

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

  • How can I find direct flights from Denver to Palo Alto?

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

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

    Yes. Cheapflights offers flight deals from Denver to Palo Alto 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 Denver to Palo Alto?

    Currently, January is the cheapest month in which you can book a flight from Denver to Palo Alto (average of $276). Flying from Denver to Palo Alto in June is currently the most expensive (average of $357). 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 5 airlines flying from Denver to Palo Alto

Discover the top 5 airlines that operate flights from Denver to Palo Alto. 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 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$58Average$197FlexibilityNo cancel feeOn-time62%
Allegiant AirCheapest$83Average$95FlexibilityNo cancel feeOn-time88%
DeltaCheapest$108Average$276FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$141Average$293FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$161Average$330FlexibilityNo cancel feeOn-time69%

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