$74 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.

Fri, Sep 26 - Sun, Sep 28
SFO
San Francisco Intl.
DEN
Denver Intl.
$222 Roundtrip, just found
$222
Roundtrip
just found
Select Frontier Airlines flight, departing Fri, Sep 26 from San Francisco Intl. to Denver Intl., returning Sun, Sep 28, priced at $222 just found
Sat, Sep 27 - Tue, Sep 30
OAK
Oakland Intl.
DEN
Denver Intl.
$321 Roundtrip, found 2 days ago
$321
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Sat, Sep 27 from Oakland Intl. to Denver Intl., returning Tue, Sep 30, priced at $321 found 2 days ago
Fri, Sep 26 - Sun, Sep 28
SJC
Norman Y. Mineta San Jose Intl.
DEN
Denver Intl.
$355 Roundtrip, found 1 hour ago
$355
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Fri, Sep 26 from Norman Y. Mineta San Jose Intl. to Denver Intl., returning Sun, Sep 28, priced at $355 found 1 hour ago

Airfares from $74 One Way, $69 Round Trip from San Jose to Boulder

Prices starting at $69 for return flights and $74 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 - Wed, Oct 29
SFO
San Francisco
DEN
Denver
$69 Roundtrip, found 4 days ago
$69
Roundtrip
found 4 days ago
Select Frontier Airlines flight, departing Tue, Oct 28 from San Francisco to Denver, returning Wed, Oct 29, priced at $69 found 4 days ago
Mon, Oct 20 - Fri, Oct 24
SJC
San Jose
DEN
Denver
$103 Roundtrip, found 6 days ago
$103
Roundtrip
found 6 days ago
Select Frontier Airlines flight, departing Mon, Oct 20 from San Jose to Denver, returning Fri, Oct 24, priced at $103 found 6 days ago
Thu, Oct 9 - Fri, Oct 17
SFO
San Francisco
DEN
Denver
$110 Roundtrip, found 6 days ago
$110
Roundtrip
found 6 days ago
Select Frontier Airlines flight, departing Thu, Oct 9 from San Francisco to Denver, returning Fri, Oct 17, priced at $110 found 6 days ago
Thu, Dec 11 - Tue, Dec 16
SFO
San Francisco
DEN
Denver
$142 Roundtrip, found 4 days ago
$142
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Thu, Dec 11 from San Francisco to Denver, returning Tue, Dec 16, priced at $142 found 4 days ago
Wed, Dec 3 - Sat, Dec 6
OAK
Oakland
DEN
Denver
$157 Roundtrip, found 5 days ago
$157
Roundtrip
found 5 days ago
Select Southwest Airlines flight, departing Wed, Dec 3 from Oakland to Denver, returning Sat, Dec 6, priced at $157 found 5 days ago

Boulder economy flight packages

Price found within the past 48 hours. Click for updated prices.
Sonesta Denver Downtown
4.0-star property

Sonesta Denver Downtown

8.2/10 Very Good! (2,012 reviews)

Nov 6 - Nov 9

3 night stay

San Jose (SJC) to Denver (DEN)

Alaska Airlines • Non-stop roundtrip • Coach
Price was $789, price is now $590 per person
$590
per person
found 2 hours ago
Great location. Nice staff. Comfy bed.

Reviewed on Aug 20, 2025

The Brown Palace Hotel and Spa, Autograph Collection
4.5-star property

The Brown Palace Hotel and Spa, Autograph Collection

8.6/10 Excellent! (1,006 reviews)

Nov 6 - Nov 9

3 night stay

San Jose (SJC) to Denver (DEN)

Alaska Airlines • Non-stop roundtrip • Coach
Price was $919, price is now $672 per person
$672
per person
found 2 hours ago
Beautiful property. Awesome room at the Top of the Brown.

Reviewed on Feb 20, 2024

The Maven Hotel at Dairy Block
4.0-star property

The Maven Hotel at Dairy Block

9.4/10 Exceptional! (1,154 reviews)

Nov 6 - Nov 9

3 night stay

San Jose (SJC) to Denver (DEN)

Alaska Airlines • Non-stop roundtrip • Coach
Price was $906, price is now $671 per person
$671
per person
found 2 hours ago
Great vibe. Unique.

Reviewed on Oct 27, 2024

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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
965 mi
Direct Flight Airlines
Air Canada, Frontier Airlines, Avianca, Emirates, Southwest Airlines, ANA, Asiana Airlines, Virgin Australia, Air New Zealand, United Airlines
Earliest Flight Arrival
3:40PM UTC
Latest Flight Arrival
7:29AM UTC

San Jose to Boulder

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Stay in Your Budget and Still Get Great Accommodations

Orbitz shoppers can access affordable vacation packages and have the option of booking their departure and arrival flights through different airlines, making travel less costly and more convenient. The best prices on flights from San Jose to Boulderare always found on Orbitz.

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.