$91 Find Cheap Flights from Denver to Palo Alto

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Denver to Palo Alto departing on 6/4. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$168
Typical prices: $377-$211
Frontier
Tue 6/2Sat 6/6
DEN - SFO • 1 stop
Cheapest non-stop
$171
Typical prices: $391-$218
Frontier
Wed 6/24Mon 6/29
DEN - SFO • Non-stop
Arrival airport
You can't fly directly to Palo Alto. It is served by San Francisco (SFO), located 17.9 miles from Palo Alto.
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Flight Deals
Useful Info
Flight Deals

Cheap Flights from Denver to Palo Alto (DEN-SFO)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Denver to Palo Alto that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Denver to Palo Alto

Tue, Jun 2 - Sat, Jun 6
Frontier Logo
2:08 pm - 6:19 pm
DEN
-
SFO
5h 11m
1 stop
Frontier Logo
5:30 pm - 12:31 am
SFO
-
DEN
6h 01m
1 stop
$168Frontier
Sat, Jun 6 - Mon, Jun 8
Frontier Logo
2:00 pm - 7:36 pm
DEN
-
SFO
6h 36m
1 stop
Frontier Logo
8:41 pm - 3:58 am
SFO
-
DEN
6h 17m
1 stop
$170Frontier
Tue, Jun 2 - Fri, Jun 5
Frontier Logo
7:12 am - 9:16 pm
DEN
-
SFO
15h 04m
1 stop
Frontier Logo
10:50 pm - 9:38 am
SFO
-
DEN
9h 48m
1 stop
$171Frontier
Tue, Jun 2 - Wed, Jun 3
Frontier Logo
7:12 am - 9:16 pm
DEN
-
SFO
15h 04m
1 stop
Frontier Logo
10:01 pm - 10:01 am
SFO
-
DEN
11h 00m
1 stop
$172Frontier
Tue, Jun 2 - Wed, Jun 3
Frontier Logo
7:12 am - 9:16 pm
DEN
-
SFO
15h 04m
1 stop
Frontier Logo
11:15 am - 12:09 am
SFO
-
DEN
11h 54m
2 stops
$173Frontier
Wed, Jun 3 - Mon, Jun 8
Frontier Logo
7:01 pm - 4:41 pm
DEN
-
SFO
22h 40m
1 stop
Frontier Logo
10:50 pm - 9:42 pm
SFO
-
DEN
21h 52m
1 stop
$175Frontier
Mon, Jun 8 - Tue, Jun 16
Frontier Logo
7:00 am - 7:36 pm
DEN
-
SFO
13h 36m
1 stop
Frontier Logo
10:58 pm - 5:21 pm
SFO
-
DEN
17h 23m
2 stops
$176Frontier
Fri, Jun 5 - Mon, Jun 8
Frontier Logo
7:12 am - 9:16 pm
DEN
-
SFO
15h 04m
1 stop
Frontier Logo
8:41 pm - 3:58 am
SFO
-
DEN
6h 17m
1 stop
$177Frontier
Wed, Jun 24 - Mon, Jul 6
Frontier Logo
1:18 pm - 6:22 pm
DEN
-
SFO
6h 04m
1 stop
Frontier Logo
8:23 pm - 10:03 am
SFO
-
DEN
12h 40m
1 stop
$178Frontier
Tue, Jun 2 - Sat, Jun 6
Frontier Logo
10:29 pm - 9:16 pm
DEN
-
SFO
23h 47m
1 stop
Frontier Logo
5:41 pm - 12:09 am
SFO
-
DEN
5h 28m
1 stop
$179Frontier
Useful Info

Good to know

Low seasonJanuary
Cheapest flight$91
Best time to beat the crowds with an average 13% drop in price.
Most popular time to fly and prices are also 4% lower on average.
Flight from Denver to San Francisco

When to book flights from Denver to Palo Alto

Are your dates flexible? Find out the best times to travel from Denver to Palo Alto based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

FAQs for booking flights from Denver to Palo Alto

  • Which airports will I be using when flying from Denver to Palo Alto?

    When flying out of Denver you’ll be using Denver Intl. Palo Alto does not have its own airport so you’ll be flying into nearby San Francisco airport, which is 17.9 mi away.

  • How long does a flight from Denver to Palo Alto take?

    Direct flights cover the 964 miles separating Denver and Palo Alto in about 2h 35m.

  • How many flights are there between Denver and Palo Alto?

    59 direct flights run between Denver and Palo Alto on a daily basis. On average, there are about 413 departures each week.

  • What’s the cheapest day of the week to fly between Denver and Palo Alto?

    Consider leaving on a Tuesday and avoid Sundays if you are looking for the best rates. For your return to Denver, you’ll find the best rates on Fridays and the most expensive ones on Sundays.

  • How does KAYAK find such low prices on flights from Denver to Palo Alto?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Denver to Palo Alto.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Denver to Palo Alto?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Palo Alto from Denver is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Denver to Palo Alto?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Palo Alto with an airline and back to Denver with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Denver to Palo Alto?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Palo Alto from Denver up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • Which airlines provide the cheapest flights from Denver to Palo Alto?

    In the last 72 hours, the cheapest one-way ticket between Denver and Palo Alto found on KAYAK was with Frontier for $45. Frontier offered a round-trip connection from $73 and Southwest from $157.

Top tips for finding cheap flights from Denver to Palo Alto

  • There is no airport in Palo Alto. Instead, you’ll be flying into San Francisco Airport when flying between Denver and Palo Alto.
  • The cheapest flight from Denver to Palo Alto was found 33 days before departure, on average.
  • Book at least 1 week before departure in order to get a below-average price.
  • High season is considered to be February, March and April. The cheapest month to fly is September.

Reviews of the top 4 airlines serving Denver to Palo Alto

 
Need help choosing which airline to fly with from Denver to Palo Alto? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4303 reviews
8.1Boarding
7.0Food
8.6Crew
8.0Comfort
7.5Entertainment
Airline reviews

Plane was clean and comfortable. Flight attendants and gate staff were professional, friendly and efficient. Boarding and deplaning were orderly and efficient. All in all, the typical excellent Southwest experience.

10.0 ExcellentRobert, May 2026
LAS - SFO
Read more Southwest reviews

Plane was clean and comfortable. Flight attendants and gate staff were professional, friendly and efficient. Boarding and deplaning were orderly and efficient. All in all, the typical excellent Southwest experience.

Not having a five hour delay with little notice! The crew was very kind, though, and just as tired as we passengers were. The flight didn't depart until nearly 1 am...and no reason was ever given.

This leg was much better, but we did have to have a 3 hour lay o er after coming from a very exhausting hiccup with our flight from BNA to Den

The Air hostess were very rude on my flight from Houston to Austin . Their regular communication itself felt a they are shouting at people.

Boarding was easy. The seats are small and fairly uncomfortable

The problem with the seat assignments is that there were a lot of rows in the front that were empty but my row at the back was full. Just not so pleasant.

No food or entertainment, just a quick 40 minute flight. A little bumpy due to Santa Ana winds but pilot has no control over that. Good flight and landing!

Good but I prefer choose your own seat. With the new assigned seats they should board from the back I see no advantage to this new boarding. Just like every other airline

Mediocre. Boarding is now unpleasant. The employees, once friendly and nice, are now regularly speaking sternly to passengers, badgering them to do things right so they can take off on time and gate check bags because they don't have enough overhead bin space. The pretzel snack was crushed flat and broken into even smaller pieces, which happens frequently lately. Drink service was suspended before they reached my row.

The charges were ridiculous for an hour flight and the turbulence was very scary.

I had to cancel this trip due to medical reasons. I took out flight insurance but I was unable to cancel my reservation on either Kayak or Alaska. I need proof that I did not take this flight to get my refund. I have tried for a week and a half together that information from either Kayak or Alaska but so far I have gotten no response. I am very disappointed!

The flight crew home was so, so friendly and HILARIOUS. I’ll keep flying Alaska like I have for the last 30+ years!

I had to change my flight last minute due to a medical emergency. Their agent was compassionate and extremely helpful. This airlines really cares about making travel, for fun, work, or an emergency a customer-focused experience. Thank you!

See what I wrote in the previous section. This was a terrible experience. I would like refund.. I even paid an extra $70 for an aisle seat closer to the front to ensure that I got off early enough to catch the next flight. The fact that the plane did not wait, and even left eearlier, knowing that the first flight came in late, and was moved to a terminal three train stops away is appalling. My friend that flew JetBlue, their flight was delayed and came in later and the connecting flight WAITED for them. How is it that JetBlue could do that, and Alaska could not.

The seat on the plane out was broken and would not lean back. I have back problems and sitting up straight was hard on my lower back and caused pain for over half the flight. Since I paid extra for First Class so I would not have these issues. This needs to be addressed.

No headphones provided. No gf food. Only 1 beverage cart run sAN to HNL. Rarely saw crew members

The check-in crew for Alaska was rude, unhelpful, and the opposite of customer-centric. We arrived 50 minutes before our flight and were told it was too late to check baggage. When I asked what the cutoff was, the agent started speaking in codes “D50” and yelling to their manager who also spoke in codes. They then tried to speak to me using these codes and all I wanted to know was the time of the cutoff, which they would not — or could not — articulate. They booked me and my family on the next flight while smirking.

Generally Good. Outbound flight was marred by a continuously s creaming baby. Fortunately the flight was only 90 mins long it would be nice if people traveling with small childres could be centered in one part of the plane. Also, you need to adapt your servey to include a "not applicable " option for things like food and entertainment, which are not offered on shorter flights. I fily Alaska by choice as given all the cirumstances, I fel\el you do a good job.

A solidly good experience, but would’ve appreciated more communication with regards to travel delays.

I wasn’t aware that we needed to supply our own screens for entertainment

O’hsre taxi and deboarding took 40 minutes. Needed 20 minutes extra time between connecting flights to avoid running through terminal.

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

Really hard landing... as in slammed into the runway then hit the brakes really hard ...

Every staff member was professional, friendly and courteous. The pizza twist was ok. It was warm but too much dough.

Wonderful in-seat entertainment with seatback screens and huge selection of quality movies. The ability to bluetooth connect headphones was amazing.

Flight left on time and we arrived 25 minutes early! There was a gate available when we arrived so early on a busy Sunday afternoon! Flight attendants came around twice with the drinks cart.

Sitting on the runway after we land for almost two hours! Not sure if we should blame United or Just Dumpy Vance.

Flight was late - I was downgraded from first class to coach

Crew seemed a bit cranky. No seatback screens. But boarding was efficient and on time and we arrived early.

See previous note about the passenger in Denver who threw my husband's bag out of the overhead bin in order to maker room for his own. And the flight attendant back up the new passenger.

12 hour delay required getting on and off plane 3 times - would have at least liked to have been offered a snack or drink

There's no seats that lean back with little leg space i wad uncomfortable the entire flight. Your charges for extra baggage is despicable and costly!!

Our flight was canceled. I will never use Kayak nor Frontier for travel again. The entire experience was a headache.

There was no food and no entertainment, so I'm not sure why these are even in the survey, as my understanding is frontier does not ever offer food without a few, not even a snack, and there are no screens so unless the flight safety talk is our entertainment why ask how we liked it?. One of the flight attendants say in the back of the plane as people filed in to their seats, yelling orders about where to put baggage and telling people to hurry up. It was the least professional experience I've ever had on a flight.

Not clean and was told I would get a great seat and it was not great at all

Delayed. Text notifications were slow. Not much information o what was happening. Boarding was slow and confusing. Wasn’t even offered water other flight. Had to ask. No entertainment at all. Felt like.a Greyhound bus.

Terrible. The canceled my entire flight when I requested a refund for a trip frontier canceled trip one way.

i was unable to check in the flight. refund requested

Frontier is the Walmart of airlines. Frontier has removed adjustability and comfort from their seats to make the flight lighter and save gas. This makes it impossible to sleep on their flights. Their customer service is abysmal. Once, I bought a drink on the plane, and they swiped my credit card on the plane to pay for it. Then I got three weeks of daily notices from my bank telling me they tried to charge the wrong card number over and over again. I tried to call them, but they removed the ability to actually talk to someone that can resolve such a problem from their company to cut corners. The only way to talk to someone in person is to go to the check-in counter at the airport (40 minutes drive from my house). Eventually their system gave up on trying to charge the card, after 21 days of repeated tries. They don't pad their prices even a little to handle customer service issues like missed flights. They also have a blanket policy preventing helping you reschedule a missed flight if their system says you "cancelled" your own flight online. This is a major problem because their website is broken on mobile devices, the only web browser you have at the airport when their gate staff tell you that you have to reschedule your own missed flight online because they can't help you. I tried to reschedule my flight on my android device and instead, their website crashed and "cancelled" my missed flight. When I got to the counter, the agent argued with me for 5 minutes insisting that I intentionally cancelled my own flight (implying I had to buy another flight). She missed the point: the problem was that I could not buy another flight because their website is broken. I left to avoid more conflict with the "customer service" agent. I tried to redress my issue with their only other "customer service" chanel available: the contact form on their website. The response I got was more of the same: you cancelled your own flight, according to our website / computer records, therefore we won't help you. I was trying to explain the problem with their broken website that cost me hundreds of dollars by crashing / malfunctioning and resulting in a cancelled flight, but they only had deaf ears for this problem. Worst customer service I have ever experienced. I will never buy another Frontier flight again, because it is a risky, painful move that I will likely regret often.

I think Frontier was very good at communication. Their app worked very well. Loading was great and the flight was nice and easy.

Everything you need to know for your flight from Denver to Palo Alto

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