$50 Cheap flight deals from San Jose (SJC) to Boulder (DEN)

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This Weekend's Flight Deals from San Jose to Boulder

This weekend's flight prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun, Sep 7 - Mon, Sep 8
SJC
Norman Y. Mineta San Jose Intl.
DEN
Denver Intl.
$139 Roundtrip, found 5 days ago
$139
Roundtrip
found 5 days ago
Select Frontier Airlines flight, departing Sun, Sep 7 from Norman Y. Mineta San Jose Intl. to Denver Intl., returning Mon, Sep 8, priced at $139 found 5 days ago
Sat, Sep 6 - Wed, Sep 10
SFO
San Francisco Intl.
DEN
Denver Intl.
$157 Roundtrip, just found
$157
Roundtrip
just found
Select Frontier Airlines flight, departing Sat, Sep 6 from San Francisco Intl. to Denver Intl., returning Wed, Sep 10, priced at $157 just found
Sat, Sep 6 - Mon, Sep 8
OAK
Oakland Intl.
DEN
Denver Intl.
$463 Roundtrip, found 1 hour ago
$463
Roundtrip
found 1 hour ago
Select Alaska Airlines flight, departing Sat, Sep 6 from Oakland Intl. to Denver Intl., returning Mon, Sep 8, priced at $463 found 1 hour ago

Airfares from $50 One Way, $83 Round Trip from San Jose to Boulder

Prices starting at $83 for return flights and $50 for one-way flights to Boulder were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Oct 28 - Sun, Nov 2
SFO
San Francisco
DEN
Denver
$83 Roundtrip, found 3 days ago
$83
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Tue, Oct 28 from San Francisco to Denver, returning Sun, Nov 2, priced at $83 found 3 days ago
Fri, Nov 14 - Sat, Nov 15
SFO
San Francisco
DEN
Denver
$84 Roundtrip, found 6 days ago
$84
Roundtrip
found 6 days ago
Select Frontier Airlines flight, departing Fri, Nov 14 from San Francisco to Denver, returning Sat, Nov 15, priced at $84 found 6 days ago
Sat, Sep 20 - Sat, Sep 27
SFO
San Francisco
DEN
Denver
$100 Roundtrip, found 2 days ago
$100
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Sat, Sep 20 from San Francisco to Denver, returning Sat, Sep 27, priced at $100 found 2 days ago
Fri, Sep 5 - Mon, Sep 8
SJC
San Jose
DEN
Denver
$110 Roundtrip, found 1 day ago
$110
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Fri, Sep 5 from San Jose to Denver, returning Mon, Sep 8, priced at $110 found 1 day ago
Sat, Oct 25 - Wed, Oct 29
SFO
San Francisco
DEN
Denver
$160 Roundtrip, found 1 day ago
$160
Roundtrip
found 1 day ago
Select Southwest Airlines flight, departing Sat, Oct 25 from San Francisco to Denver, returning Wed, Oct 29, priced at $160 found 1 day ago

Boulder economy flight packages

Price found within the past 48 hours. Click for updated prices.
Manor Vail Lodge
4.5-star property

Manor Vail Lodge

9.4/10 Exceptional! (707 reviews)

Oct 3 - Oct 6

3 night stay

San Jose (SJC) to Denver (DEN)

Frontier Airlines • Roundtrip • Coach
Save 100% on your flight
Price was $829, price is now $597 per person
$597
per person
found 14 hours ago
5 stars for a great location, extremely clean facility, friendly staff, spacious 1 bedroom unit, bar & grill on site and complimentary hot/cold breakfast & hot chocolate and cookies after skiing. Located on the east end of Vail, it's perfectly situated if you want to be walking distance to the Village and the Ski School. Free bus shuttle into the village & lionshead if you don't want to walk and very simple to navigate. Lionshead is approx 1.5 miles. Complimentary ski valet at the base of Golden Peak. A great location for easily accessing the back bowls at the Vail ski resort. We stayed in LionsHead last trip and it took some effort to get in the back area of the mountain. The complimentary breakfast buffet from 7-9am was fantastic-included an omelet station along with 4-5 buffet trays that had take out options if you didn't want to dine in. 4 stars for my 1 bedroom condo (081) which was in the basement facing the back creek in a building where the only elevator getting downstairs was broken. (not a platinum or diamond level if you care). Location within complex made up for it as it was steps from the Riva Bahn lift and close to pool/hot tub. Comfy bed, great shower but bathroom tight considering the size of the unit. Even though its a condo, there are hotel like qualities - daily garbage removal-fresh towels-bed making. Service was great and the cleaning crew was nice! Manor Lodge pays attention to the small details, we would stay again for sure!

Reviewed on Feb 17, 2025

The Ritz-Carlton Residences, Vail
4.5-star property

The Ritz-Carlton Residences, Vail

9.6/10 Exceptional! (157 reviews)

Oct 3 - Oct 6

3 night stay

San Jose (SJC) to Denver (DEN)

Frontier Airlines • Roundtrip • Coach
Save 100% on your flight
Price was $1,693, price is now $1,233 per person
$1,233
per person
found 14 hours ago
Really appreciated the ski valet and shuttle services, the special cookies, got chocolate and water in lobby for kids to enjoy- as well as s’mores by the fire pit.

Reviewed on Jan 7, 2020

The Arrabelle at Vail Square, A RockResort
5.0-star property

The Arrabelle at Vail Square, A RockResort

9.4/10 Exceptional! (1,005 reviews)

Oct 3 - Oct 6

3 night stay

San Jose (SJC) to Denver (DEN)

Frontier Airlines • Roundtrip • Coach
Save 100% on your flight
Price was $1,330, price is now $991 per person
$991
per person
found 14 hours ago
Our room was tastefully appointed, and we have zero complaints. The staff was extremely professional and kind. The breakfast buffet was unbelievable. Highly recommend my only disappointment is that the beautiful European aesthetic was updated to be very modern. Most probably like that. I would’ve rather seen the old world Appointments to the lobby and felt that the contemporary light fixtures and art were pretentious and not in keeping with the old European Switzerland delight.

Reviewed on Jul 6, 2025

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More About Flying To Boulder from San Jose

Route Information for Flights from San Jose to Boulder

Origin Airport IATA Code
SJC
Destination Airport IATA Code
DEN
Distance
Direct Flight Airlines
Earliest Flight Arrival
Latest Flight Arrival

San Jose to Boulder

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Frequently asked questions

Are there non-stop flights from San Jose to Boulder?
You betcha. As a matter of fact, there are 3 airlines that will fly you directly from San Francisco Airport to Denver Intl. Airport (DEN). Lock in your seat with one of these well-known carriers:

  • United Airlines
  • Southwest Airlines
  • Frontier Airlines

What is the shortest flight from San Jose to Boulder?
It can zip by in as little as 2 hours and 25 minutes. If you believe your vacation hours should be spent 'vacationing' rather than flying, you'll enjoy the flight from San Francisco, CA (SFO-San Francisco Intl.) to DEN.
What airlines fly from San Jose to Boulder most frequently?
Consider booking a ticket with United Airlines (UA), which flies frequently along this route. This airline offers 212 flights every month between San Francisco Airport and DEN. Alternatively, lock in your favorite seat with Southwest Airlines (WN). You'll have 82 monthly flights between San Jose and Boulder to take your pick of with this airline.
What is the cheapest day of the week to fly?
Consider flying out early in the week to save on your airfare. Orbitz data from 2021 shows that Monday is the cheapest day to depart, followed by Tuesday. Saturday showed the highest average ticket prices likely because many travelers prefer to start their vacation on a weekend.
What is the cheapest month to fly?
We won't keep you guessing, according to Orbitz data from 2021, the cheapest month to fly is February. Perfect for those who need a weekend getaway, or just a break from it all in the shortest month of the year. Be aware that the most expensive time to fly is during the height of summer in July, and in the holiday month of December.*According to flight demand on Orbitz.com from January to December 2021. Savings are subject to change based on departure location, date and destination.

Fare, taxes & fees: Fares include all taxes and fees, except baggage fees. Rates shown reflect fares found by other Orbitz users over the past 7 days. Due to rapidly changing airline prices & seat availability, these fares may no longer be available.

Refunds/changes/cancellations: Itinerary changes, if permitted for the fare, will have a $30 service fee charged by Orbitz. Additional airline charges may apply.

Other conditions: Schedules, fares and rules are subject to change without notice. Seats are limited and may not be available on all flights/dates or in all markets. Lower fares may be available. Fares will not be honored retroactively or in exchange for any wholly/partially unused ticket. Tickets are non-transferable and non-refundable. Fare rules are provided for the selected itinerary before booking.