$19 Cheap flight deals from Las Vegas (LAS) to Diamond Bar (QLA)

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This Weekend's Flight Deals from Las Vegas to Diamond Bar

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, Nov 1 - Sun, Nov 8
LAS
Harry Reid Intl.
ONT
Ontario Intl. Airport
$145 Roundtrip, found 1 day ago
$145
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Sun, Nov 1 from Harry Reid Intl. to Ontario Intl. Airport, returning Sun, Nov 8, priced at $145 found 1 day ago
Sat, Oct 31 - Mon, Nov 23
LAS
Harry Reid Intl.
LAX
Los Angeles Intl.
$177 Roundtrip, found 5 hours ago
$177
Roundtrip
found 5 hours ago
Select Frontier Airlines flight, departing Sat, Oct 31 from Harry Reid Intl. to Los Angeles Intl., returning Mon, Nov 23, priced at $177 found 5 hours ago
Sat, Oct 31 - Sun, Nov 1
LAS
Harry Reid Intl.
SNA
John Wayne
$214 Roundtrip, found 3 hours ago
$214
Roundtrip
found 3 hours ago
Select Breeze Airways flight, departing Sat, Oct 31 from Harry Reid Intl. to John Wayne, returning Sun, Nov 1, priced at $214 found 3 hours ago
Sat, Oct 31 - Sat, Nov 7
LAS
Harry Reid Intl.
LGB
Long Beach Municipal
$351 Roundtrip, found 3 days ago
$351
Roundtrip
found 3 days ago
Select Southwest Airlines flight, departing Sat, Oct 31 from Harry Reid Intl. to Long Beach Municipal, returning Sat, Nov 7, priced at $351 found 3 days ago

Airfares from $19 One Way, $38 Round Trip from Las Vegas to Diamond Bar

Prices starting at $38 for return flights and $19 for one-way flights to Diamond Bar 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, Nov 17 - Sat, Nov 21
LAS
Las Vegas
ONT
Ontario
$38 Roundtrip, found 16 hours ago
$38
Roundtrip
found 16 hours ago
Select Frontier Airlines flight, departing Tue, Nov 17 from Las Vegas to Ontario, returning Sat, Nov 21, priced at $38 found 16 hours ago
Sat, Dec 12 - Tue, Dec 15
LAS
Las Vegas
LAX
Los Angeles
$38 Roundtrip, found 1 hour ago
$38
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Sat, Dec 12 from Las Vegas to Los Angeles, returning Tue, Dec 15, priced at $38 found 1 hour ago
Sat, Nov 21 - Thu, Nov 26
LAS
Las Vegas
SNA
Orange County
$43 Roundtrip, found 7 hours ago
$43
Roundtrip
found 7 hours ago
Select Frontier Airlines flight, departing Sat, Nov 21 from Las Vegas to Orange County, returning Thu, Nov 26, priced at $43 found 7 hours ago
Tue, Dec 8 - Wed, Dec 9
LAS
Las Vegas
SNA
Orange County
$102 Roundtrip, found 6 hours ago
$102
Roundtrip
found 6 hours ago
Select Breeze Airways flight, departing Tue, Dec 8 from Las Vegas to Orange County, returning Wed, Dec 9, priced at $102 found 6 hours ago
Thu, Dec 3 - Tue, Dec 8
LAS
Las Vegas
LAX
Los Angeles
$117 Roundtrip, just found
$117
Roundtrip
just found
Select American Airlines flight, departing Thu, Dec 3 from Las Vegas to Los Angeles, returning Tue, Dec 8, priced at $117 just found

Diamond Bar economy flight packages

Price found within the past 48 hours. Click for updated prices.
SIRTAJ - Beverly Hills
4.0-star property

SIRTAJ - Beverly Hills

8.2/10 Very Good! (1,005 reviews)

Dec 5 - Dec 7

2 night stay

Las Vegas (LAS) to Los Angeles (LAX)

Frontier Airlines • Roundtrip • Coach
Price was $401, price is now $191 per person
$191
per person
found 3 hours ago

LA Crystal Hotel - Los Angeles Area
3.0-star property

LA Crystal Hotel - Los Angeles Area

8.6/10 Excellent! (1,017 reviews)

Dec 14 - Dec 21

7 night stay

Las Vegas (LAS) to Los Angeles (LAX)

American Airlines • Coach

Los Angeles (LAX) to Las Vegas (LAS)

Frontier Airlines • Coach
Save 100% on your flight
Price was $691, price is now $386 per person
$386
per person
found 21 hours ago

Hollywood Inn Suites Hotel
2.5-star property

Hollywood Inn Suites Hotel

8.4/10 Very Good! (2,148 reviews)

Nov 26 - Nov 29

3 night stay

Las Vegas (LAS) to Los Angeles (LAX)

Frontier Airlines • Roundtrip • Coach
Save 100% on your flight
Price was $403, price is now $253 per person
$253
per person
found 1 day ago
I booked a King Suite last minute because my other plans fell through. Overall, I had a nice stay. The property/room is pretty clean for the most part and the location was perfect. I came into to town to go to a concert at Sofi and to go to the beach. This place is roughly 15 mins from both. The staff was friendly. This hotel does not hold your luggage so make other plans for storage if you're getting there early in the morning or you'll have to take your luggage with you until you can check in at 3pm. Early check in can be requested but they do charge an additional fee.

Reviewed on Oct 27, 2026

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More About Flying To Diamond Bar from Las Vegas

Route Information for Flights from Las Vegas to Diamond Bar

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

Las Vegas to Diamond Bar

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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.