$54 Cheap flight deals from Los Angeles (QLA) to Boulder (DEN)

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This Weekend's Flight Deals from Los Angeles 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, Aug 10 - Tue, Aug 12
ONT
Los Angeles - Ontario Intl.
DEN
Denver Intl.
$218 Roundtrip, found 20 hours ago
$218
Roundtrip
found 20 hours ago
Select Frontier Airlines flight, departing Sun, Aug 10 from Los Angeles - Ontario Intl. to Denver Intl., returning Tue, Aug 12, priced at $218 found 20 hours ago
Sat, Aug 9 - Mon, Aug 11
LAX
Los Angeles Intl.
DEN
Denver Intl.
$302 Roundtrip, just found
$302
Roundtrip
just found
Select Bargain Flight flight, departing Sat, Aug 9 from Los Angeles Intl. to Denver Intl., returning Mon, Aug 11, priced at $302 just found
Fri, Aug 8 - Sun, Aug 10
SNA
John Wayne
DEN
Denver Intl.
$331 Roundtrip, just found
$331
Roundtrip
just found
Select Frontier Airlines flight, departing Fri, Aug 8 from John Wayne to Denver Intl., returning Sun, Aug 10, priced at $331 just found
Sun, Aug 10 - Sat, Aug 16
LGB
Long Beach Municipal
DEN
Denver Intl.
$364 Roundtrip, found 5 days ago
$364
Roundtrip
found 5 days ago
Select Southwest Airlines flight, departing Sun, Aug 10 from Long Beach Municipal to Denver Intl., returning Sat, Aug 16, priced at $364 found 5 days ago

Airfares from $54 One Way, $92 Round Trip from Los Angeles to Boulder

Prices starting at $92 for return flights and $54 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.

Sat, Oct 18 - Mon, Oct 20
LAX
Los Angeles
DEN
Denver
$92 Roundtrip, found 18 hours ago
$92
Roundtrip
found 18 hours ago
Select Frontier Airlines flight, departing Sat, Oct 18 from Los Angeles to Denver, returning Mon, Oct 20, priced at $92 found 18 hours ago
Sat, Oct 25 - Tue, Oct 28
SNA
Orange County
DEN
Denver
$109 Roundtrip, found 6 days ago
$109
Roundtrip
found 6 days ago
Select Frontier Airlines flight, departing Sat, Oct 25 from Orange County to Denver, returning Tue, Oct 28, priced at $109 found 6 days ago
Sat, Aug 30 - Sun, Aug 31
ONT
Ontario
DEN
Denver
$112 Roundtrip, found 6 days ago
$112
Roundtrip
found 6 days ago
Select Frontier Airlines flight, departing Sat, Aug 30 from Ontario to Denver, returning Sun, Aug 31, priced at $112 found 6 days ago
Thu, Sep 4 - Sat, Sep 6
LAX
Los Angeles
DEN
Denver
$127 Roundtrip, found 20 hours ago
$127
Roundtrip
found 20 hours ago
Select United flight, departing Thu, Sep 4 from Los Angeles to Denver, returning Sat, Sep 6, priced at $127 found 20 hours ago
Thu, Sep 4 - Sat, Sep 6
LAX
Los Angeles
DEN
Denver
$127 Roundtrip, found 20 hours ago
$127
Roundtrip
found 20 hours ago
Select Southwest Airlines flight, departing Thu, Sep 4 from Los Angeles to Denver, returning Sat, Sep 6, priced at $127 found 20 hours ago

Boulder economy flight packages

Price found within the past 48 hours. Click for updated prices.
Kimpton Hotel Monaco Denver by IHG
4.0-star property

Kimpton Hotel Monaco Denver by IHG

8.6/10 Excellent! (1,000 reviews)

Sep 29 - Oct 4

5 night stay

Burbank (BUR) to Denver (DEN)

United • Coach

Denver (DEN) to Burbank (BUR)

Southwest Airlines • Coach
Save 100% on your flight
per person
found 1 day 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

Hotel Indigo Denver Downtown - Union Station by IHG
3.5-star property

Hotel Indigo Denver Downtown - Union Station by IHG

9/10 Wonderful! (1,001 reviews)

Sep 29 - Oct 4

5 night stay

Burbank (BUR) to Denver (DEN)

United • Coach

Denver (DEN) to Burbank (BUR)

Southwest Airlines • Coach
Save 100% on your flight
per person
found 1 day ago
Friendly staff and clean rooms.

Reviewed on Jun 29, 2025

The Maven Hotel at Dairy Block
4.0-star property

The Maven Hotel at Dairy Block

9.4/10 Exceptional! (1,120 reviews)

Sep 29 - Oct 4

5 night stay

Burbank (BUR) to Denver (DEN)

United • Coach

Denver (DEN) to Burbank (BUR)

Southwest Airlines • Coach
Save 100% on your flight
per person
found 1 day ago
Great vibe. Unique.

Reviewed on Oct 27, 2024

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Boulder packages with premium economy flights

Price found within the past 48 hours. Click for updated prices.
Fairfield Inn & Suites by Marriott Denver Airport at Gateway Park
2.5-star property

Fairfield Inn & Suites by Marriott Denver Airport at Gateway Park

8.8/10 Excellent! (905 reviews)

Sep 24 - Sep 28

4 night stay

Los Angeles (LAX) to Denver (DEN)

Delta • Roundtrip • PremiumEconomy
per person
found 23 hours ago
Quiet safe area, close enough to food options and gas, rooms were clean and spacious.

Reviewed on Aug 13, 2024

The Slate Denver, Tapestry Collection By Hilton
4.0-star property

The Slate Denver, Tapestry Collection By Hilton

9.4/10 Exceptional! (1,362 reviews)

Sep 24 - Sep 28

4 night stay

Los Angeles (LAX) to Denver (DEN)

Delta • Roundtrip • PremiumEconomy
Save 100% on your flight
per person
found 23 hours ago
Across the street from the convention center, on a quiet street, just a block away from restaurants, light rail, bus, on-site dining if needed. Great for a few nights stay.

Reviewed on Apr 8, 2025

Kimpton Hotel Monaco Denver by IHG
4.0-star property

Kimpton Hotel Monaco Denver by IHG

8.6/10 Excellent! (1,000 reviews)

Sep 24 - Sep 28

4 night stay

Los Angeles (LAX) to Denver (DEN)

Delta • Roundtrip • PremiumEconomy
Save 100% on your flight
per person
found 23 hours 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

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See all available trips from Los Angeles to Boulder
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Boulder first class flight packages

Price found within the past 48 hours. Click for updated prices.
DoubleTree by Hilton Denver International Airport
4.0-star property

DoubleTree by Hilton Denver International Airport

8.8/10 Excellent! (1,104 reviews)

Sep 13 - Sep 21

8 night stay

Orange County (SNA) to Denver (DEN)

United • Non-stop roundtrip • FirstClass
per person
found 1 day ago
Good location to make early flights less painful. Ridiculous they charge so much for overnight parking. If I had known that before booking I would have picked a different hotel in the same area.

Reviewed on Apr 14, 2025

Halcyon - a hotel in Cherry Creek
4.5-star property

Halcyon - a hotel in Cherry Creek

9.2/10 Wonderful! (1,000 reviews)

Sep 13 - Sep 21

8 night stay

Orange County (SNA) to Denver (DEN)

United • Non-stop roundtrip • FirstClass
per person
found 1 day ago
Great staff and they go the extra mile for you!

Reviewed on Jun 10, 2024

Sentral Union Station
4.0-star property

Sentral Union Station

9.2/10 Wonderful! (756 reviews)

Sep 13 - Sep 21

8 night stay

Orange County (SNA) to Denver (DEN)

United • Non-stop roundtrip • FirstClass
per person
found 1 day ago
Mildly complicated parking arrival instructions.

Reviewed on Jul 20, 2025

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More About Flying To Boulder from Los Angeles

Route Information for Flights from Los Angeles to Boulder

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

Los Angeles to Boulder

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Frequently asked questions

Are there non-stop flights from Los Angeles to Boulder?
There are 6 airlines that jet directly from LAX to DIA airport. Find exactly what you need with one of these top carriers:

  • United Airlines
  • Southwest Airlines
  • Delta
  • American Airlines
  • Spirit Airlines

What is the shortest flight from Los Angeles to Boulder?
It can take as little as 2 hours and 15 minutes to fly from Los Angeles Intl. Airport (LAX) to Denver, CO (DEN-Denver Intl.). Relax and enjoy the service, because you'll be walking through arrivals in next to no time.
What airlines fly from Los Angeles to Boulder most frequently?
These airlines fly most frequently from Los Angeles to Boulder. No matter your travel schedule, you're sure to find one to your liking among these well-known carriers: United Airlines - (UA) with 234 flights every month Southwest Airlines - (WN) with 156 flights every month Delta - (DL) with 121 flights every month American Airlines - (AA) with 91 flights every month Spirit Airlines - (NK) with 30 flights every month Frontier Airlines - (F9) with 4 flights every month
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.