$44 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, Apr 10 - Mon, Apr 13
SFO
San Francisco Intl.
DEN
Denver Intl.
$299 Roundtrip, found 9 hours ago
$299
Roundtrip
found 9 hours ago
Select Frontier Airlines flight, departing Fri, Apr 10 from San Francisco Intl. to Denver Intl., returning Mon, Apr 13, priced at $299 found 9 hours ago
Fri, Apr 10 - Fri, Apr 17
SJC
Norman Y. Mineta San Jose Intl.
DEN
Denver Intl.
$320 Roundtrip, found 10 hours ago
$320
Roundtrip
found 10 hours ago
Select Frontier Airlines flight, departing Fri, Apr 10 from Norman Y. Mineta San Jose Intl. to Denver Intl., returning Fri, Apr 17, priced at $320 found 10 hours ago
Fri, Apr 10 - Fri, Apr 17
OAK
Oakland Intl.
DEN
Denver Intl.
$473 Roundtrip, found 2 days ago
$473
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Fri, Apr 10 from Oakland Intl. to Denver Intl., returning Fri, Apr 17, priced at $473 found 2 days ago

Airfares from $44 One Way, $88 Round Trip from San Jose to Boulder

Prices starting at $88 for return flights and $44 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.

Wed, May 6 - Wed, May 13
SFO
San Francisco
DEN
Denver
$88 Roundtrip, found 1 day ago
$88
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Wed, May 6 from San Francisco to Denver, returning Wed, May 13, priced at $88 found 1 day ago
Sun, May 10 - Tue, May 12
SFO
San Francisco
DEN
Denver
$108 Roundtrip, found 17 hours ago
$108
Roundtrip
found 17 hours ago
Select Frontier Airlines flight, departing Sun, May 10 from San Francisco to Denver, returning Tue, May 12, priced at $108 found 17 hours ago
Mon, May 4 - Mon, May 11
SJC
San Jose
DEN
Denver
$162 Roundtrip, just found
$162
Roundtrip
just found
Select Frontier Airlines flight, departing Mon, May 4 from San Jose to Denver, returning Mon, May 11, priced at $162 just found
Wed, Apr 29 - Wed, May 13
OAK
Oakland
DEN
Denver
$203 Roundtrip, found 3 days ago
$203
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Wed, Apr 29 from Oakland to Denver, returning Wed, May 13, priced at $203 found 3 days ago
Wed, May 6 - Wed, May 13
SFO
San Francisco
DEN
Denver
$221 Roundtrip, found 1 day ago
$221
Roundtrip
found 1 day ago
Select United flight, departing Wed, May 6 from San Francisco to Denver, returning Wed, May 13, priced at $221 found 1 day ago

Boulder economy flight packages

Price found within the past 48 hours. Click for updated prices.
Boulder Twin Lakes Inn
2.5-star property

Boulder Twin Lakes Inn

8.6/10 Excellent! (1,000 reviews)

May 14 - May 17

3 night stay

San Jose (SJC) to Denver (DEN)

Southwest Airlines • Coach

Denver (DEN) to San Jose (SJC)

Frontier Airlines • Coach
Price was $520, price is now $426 per person
$426
per person
found 21 hours ago
The property was clean, rooms large, outdoor area well groomed with walking paths, park, and grill.

Reviewed on Dec 1, 2024

Kimpton Hotel Monaco Denver by IHG
4.0-star property

Kimpton Hotel Monaco Denver by IHG

8.6/10 Excellent! (1,003 reviews)

May 29 - May 31

2 night stay

San Jose (SJC) to Denver (DEN)

Frontier Airlines • Non-stop roundtrip • Coach
Save 100% on your flight
Price was $1,212, price is now $982 per person
$982
per person
found 1 hour ago
The staff was great, very responsive! Our first room had a loud banging with the AC unit so we requested to move rooms. Second room had a very slow draining sink and when the hair dryer was used blew the fuse for the entire room. Also loud trash emptying from building next door starting at 5 am, emptied twice that same morning. Overall the place was clean and well decorated, staff helped where they could and was very nice to interact with. Just disappointed we got the two rooms that had problems.

Reviewed on Jul 5, 2024

The Ritz-Carlton, Denver
5.0-star property

The Ritz-Carlton, Denver

9/10 Wonderful! (888 reviews)

May 29 - May 31

2 night stay

San Jose (SJC) to Denver (DEN)

Frontier Airlines • Non-stop roundtrip • Coach
Price was $1,161, price is now $952 per person
$952
per person
found 1 hour ago
Staff were so nice . Decor is on point and it’s in a great location.

Reviewed on Jan 25, 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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Orbitz Makes It Easy to Plan Your Trips on a Budget

You can always find affordable flights from San Jose to Boulder on Orbitz. Use different airlines to book arrival and departure flights, take advantage of vacation package deals, and secure exclusive rewards.

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.

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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.