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Diamond Bar

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Diamond Bar Flights as Low as $56

Prices found within past 7 days. Prices and availability subject to change. Additional terms may apply.

Frontier Airlines
Tue, May 26 - Wed, Jun 10
SFO
San Francisco Intl.
ONT
Los Angeles - Ontario Intl.
$56 Roundtrip, found 2 hours ago
$56
Roundtrip
found 2 hours ago
Select Frontier Airlines flight, departing Tue, May 26 from San Francisco Intl. to Los Angeles - Ontario Intl., returning Wed, Jun 10, priced at $56 found 2 hours ago
Frontier Airlines
Tue, May 5 - Tue, May 5
SFO
San Francisco Intl.
LAX
Los Angeles Intl.
$56 Roundtrip, found 5 hours ago
$56
Roundtrip
found 5 hours ago
Select Frontier Airlines flight, departing Tue, May 5 from San Francisco Intl. to Los Angeles Intl., returning Tue, May 5, priced at $56 found 5 hours ago
Frontier Airlines
Mon, May 11 - Mon, May 18
SFO
San Francisco Intl.
SNA
John Wayne
$110 Roundtrip, found 10 hours ago
$110
Roundtrip
found 10 hours ago
Select Frontier Airlines flight, departing Mon, May 11 from San Francisco Intl. to John Wayne, returning Mon, May 18, priced at $110 found 10 hours ago
Alaska Airlines
Tue, May 5 - Tue, May 5
SFO
San Francisco Intl.
LAX
Los Angeles Intl.
$114 Roundtrip, found 5 hours ago
$114
Roundtrip
found 5 hours ago
Select Alaska Airlines flight, departing Tue, May 5 from San Francisco Intl. to Los Angeles Intl., returning Tue, May 5, priced at $114 found 5 hours ago
American Airlines
Tue, Apr 28 - Tue, May 12
SFO
San Francisco Intl.
LAX
Los Angeles Intl.
$119 Roundtrip, just found
$119
Roundtrip
just found
Select American Airlines flight, departing Tue, Apr 28 from San Francisco Intl. to Los Angeles Intl., returning Tue, May 12, priced at $119 just found
United
Tue, Apr 28 - Tue, May 12
SFO
San Francisco Intl.
LAX
Los Angeles Intl.
$119 Roundtrip, just found
$119
Roundtrip
just found
Select United flight, departing Tue, Apr 28 from San Francisco Intl. to Los Angeles Intl., returning Tue, May 12, priced at $119 just found
Delta
Tue, Apr 28 - Tue, May 12
SFO
San Francisco Intl.
LAX
Los Angeles Intl.
$119 Roundtrip, just found
$119
Roundtrip
just found
Select Delta flight, departing Tue, Apr 28 from San Francisco Intl. to Los Angeles Intl., returning Tue, May 12, priced at $119 just found
Frontier Airlines
Tue, Apr 21 - Wed, Apr 29
BWI
Baltimore Washington Intl. Thurgood Marshall
LAX
Los Angeles Intl.
$160 Roundtrip, found 3 hours ago
$160
Roundtrip
found 3 hours ago
Select Frontier Airlines flight, departing Tue, Apr 21 from Baltimore Washington Intl. Thurgood Marshall to Los Angeles Intl., returning Wed, Apr 29, priced at $160 found 3 hours ago
Frontier Airlines
Tue, Apr 28 - Tue, May 5
IAD
Washington Dulles Intl.
LAX
Los Angeles Intl.
$187 Roundtrip, just found
$187
Roundtrip
just found
Select Frontier Airlines flight, departing Tue, Apr 28 from Washington Dulles Intl. to Los Angeles Intl., returning Tue, May 5, priced at $187 just found
Frontier Airlines
Tue, May 12 - Tue, May 19
BWI
Baltimore Washington Intl. Thurgood Marshall
ONT
Los Angeles - Ontario Intl.
$214 Roundtrip, found 3 days ago
$214
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Tue, May 12 from Baltimore Washington Intl. Thurgood Marshall to Los Angeles - Ontario Intl., returning Tue, May 19, priced at $214 found 3 days ago
Frontier Airlines
Fri, Jun 26 - Sun, Jun 28
IAD
Washington Dulles Intl.
ONT
Los Angeles - Ontario Intl.
$290 Roundtrip, just found
$290
Roundtrip
just found
Select Frontier Airlines flight, departing Fri, Jun 26 from Washington Dulles Intl. to Los Angeles - Ontario Intl., returning Sun, Jun 28, priced at $290 just found
Breeze Airways
Sun, Apr 5 - Sun, Apr 5
SFO
San Francisco Intl.
SBD
San Bernardino Intl.
$301 Roundtrip, found 5 days ago
$301
Roundtrip
found 5 days ago
Select Breeze Airways flight, departing Sun, Apr 5 from San Francisco Intl. to San Bernardino Intl., returning Sun, Apr 5, priced at $301 found 5 days ago
United
Mon, Apr 27 - Wed, May 6
IAD
Washington Dulles Intl.
SNA
John Wayne
$334 Roundtrip, just found
$334
Roundtrip
just found
Select United flight, departing Mon, Apr 27 from Washington Dulles Intl. to John Wayne, returning Wed, May 6, priced at $334 just found
Bargain Flight
Tue, Apr 21 - Wed, Apr 22
BWI
Baltimore Washington Intl. Thurgood Marshall
SNA
John Wayne
$348 Roundtrip, found 3 hours ago
$348
Roundtrip
found 3 hours ago
Select Bargain Flight flight, departing Tue, Apr 21 from Baltimore Washington Intl. Thurgood Marshall to John Wayne, returning Wed, Apr 22, priced at $348 found 3 hours ago
Delta
Tue, Jun 2 - Wed, Jun 3
SFO
San Francisco Intl.
LGB
Long Beach Municipal
$377 Roundtrip, found 9 hours ago
$377
Roundtrip
found 9 hours ago
Select Delta flight, departing Tue, Jun 2 from San Francisco Intl. to Long Beach Municipal, returning Wed, Jun 3, priced at $377 found 9 hours ago
Sun Country Airlines
Tue, Jun 16 - Fri, Jun 19
BWI
Baltimore Washington Intl. Thurgood Marshall
LAX
Los Angeles Intl.
$518 Roundtrip, found 3 hours ago
$518
Roundtrip
found 3 hours ago
Select Sun Country Airlines flight, departing Tue, Jun 16 from Baltimore Washington Intl. Thurgood Marshall to Los Angeles Intl., returning Fri, Jun 19, priced at $518 found 3 hours ago

Cheap Flights to Diamond Bar

Fall in love at first flight with your vacation to Diamond Bar by saving a ton of cash on your last-minute cheap flight. There’s no more scouring the internet for a good deal—book your flight to Diamond Bar on Hotwire, and you’ll be up, up, and on a getaway in no time.

Because once the wheels are down in Diamond Bar, the good times start rolling. So buckle up, you’re in for a fun ride.

Frequently Asked Questions About flights to Diamond Bar

Don’t waste your time on endless searches for cheap airline tickets oneway or roundtrip. We’ll have you on your way to Diamond Bar with a tiny bag of pretzels in your hand before you can say “tray tables in the upright position”—and for a ticket price that works for your vacay budget.

So all you have to worry about is where you’re headed after the QLA airport.

What is the cheapest month to fly to Diamond Bar?

Airline ticket prices fluctuate all the time, depending on the day of the week or the month of the year. The cheapest round trip flights to Diamond Bar are in May, but when you book your flight on Hotwire, savings are always in season.

How many airlines fly to Diamond Bar?

Variety is the spice of life, even when it comes to booking your next trip. Want options for airlines? You’ll find 15 to choose from for your flight to Diamond Bar.

What airport is best to fly into Diamond Bar?

When you’re planning your trip to Diamond Bar, convenience is the name of the game. Luckily, Diamond Bar Los Angeles - Ontario Intl. Airport is nearby so you can deplane and get going on checking off everything on your Diamond Bar must-do list.

How much are flights to Diamond Bar?

Got very cheap flights on your vacation itinerary? When you book your airline tickets to Diamond Bar on Hotwire, you may just get what’s on your getaway wish list. With tickets as low as $56, you’ll have leftover cash for at least a magazine and a bottle of water at the airport book store.

How to get cheap flights to Diamond Bar?

The trick to saving a stack of cash on your flight to Diamond Bar? Snatch up that Hotwire flight deal when you see a killer rate because it could be gone in a flash. And with flights as low as $56 right now, why wait?

Diamond Bar Flight Information
Destination airport
Los Angeles - Ontario Intl.
Destination airport IATA code
ONT
Roundtrip price
$56

Last Minute Hotel Deals in Diamond Bar

Hilton Anaheim

Hilton Anaheim

4 out of 5
777 W Convention Way Anaheim CA
Book a stay at this spa hotel in Anaheim. Enjoy a full-service spa, 4 restaurants, and 2 hot tubs. Our guests praise the helpful staff and the clean rooms in ...
8.8/10 Excellent! (1,177 reviews)
Breakfast charges were not congruent with what check in staff promoted.

Reviewed on Apr 2, 2026

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Hilton Anaheim
Anaheim Majestic Garden Hotel

Anaheim Majestic Garden Hotel

3.5 out of 5
900 S Disneyland Dr Anaheim CA
Book a stay at this family-friendly hotel in Anaheim. Enjoy free WiFi, 2 restaurants, and breakfast (surcharge). Our guests praise the breakfast and the pool ...
8.2/10 Very Good! (5,134 reviews)
The hot tub had feces in it while we were in the hot tub. We did not notice until we got out and turned off the bubbles. It was full of feces at the bottom, cloudy and disgusting. When we tried to report it to the staff they were very rude and hung up while I was trying to explain to them what happened. ...

Reviewed on Apr 2, 2026

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Anaheim Majestic Garden Hotel
Motel 6 Anaheim Maingate

Motel 6 Anaheim Maingate

2 out of 5
Anaheim CA
Stay at this motel in Anaheim. Enjoy free WiFi, parking (surcharge), and a 24-hour front desk. Our guests praise the pool and the helpful staff in our reviews. ...
8/10 Very Good! (6,069 reviews)
The bathrooms don’t have proper doors, the shower curtains are so dirty. On the first day we stayed there house keeping came in and they didn’t clean but it seemed like they were smoking pot in the room. The beds are not even decent enough to sleep in. Do not recommend, especially since you can get ...

Reviewed on Apr 2, 2026

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Motel 6 Anaheim Maingate
Clementine Hotel & Suites Anaheim

Clementine Hotel & Suites Anaheim

3 out of 5
1700 S Clementine St Anaheim CA
Book a stay at this family-friendly hotel in Anaheim. Enjoy free breakfast, free WiFi, and a 24-hour front desk. Our guests praise the breakfast and the helpful ...
9.2/10 Wonderful! (2,476 reviews)
Gran lugar para llegar con familia, caminando llegas a Disney, el carro lo estacionas frente al cuarto.

Reviewed on Apr 3, 2026

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Clementine Hotel & Suites Anaheim
Hotel Huntington Beach

Hotel Huntington Beach

3 out of 5
7667 Center Ave Huntington Beach CA
Book a stay at this business-friendly hotel in Huntington Beach. Enjoy free WiFi, free parking, and breakfast (surcharge). Our guests praise the helpful staff ...
8/10 Very Good! (3,076 reviews)
Nice

Reviewed on Apr 2, 2026

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Hotel Huntington Beach
Grand Legacy At the Park

Grand Legacy At the Park

4 out of 5
1650 S Harbor Blvd Anaheim CA
Stay at this hotel in Anaheim. Enjoy free WiFi, 3 restaurants, and a rooftop terrace. Our guests praise the pool and the helpful staff in our reviews. Popular ...
8.4/10 Very Good! (4,193 reviews)
It was nice and close to the Disney parks.

Reviewed on Apr 2, 2026

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Grand Legacy At the Park
Best Western Plus Stovall's Inn

Best Western Plus Stovall's Inn

2.5 out of 5
1110 W Katella Ave Anaheim CA
Book a stay at this business-friendly hotel in Anaheim. Enjoy free breakfast, free WiFi, and 2 outdoor pools. Our guests praise the breakfast and the pool in ...
9/10 Wonderful! (3,737 reviews)
Oh where do I start. The room was damp the entire visit, making all our belongings damp. There are no USB ports despite the pictures. The shower had mold. The trash truck sat outside for 42 mins (that is after it woke me up, and I figured out what it was and started timing it). There was an odor. ...

Reviewed on Apr 2, 2026

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Best Western Plus Stovall's Inn
Tropicana Inn and Suites

Tropicana Inn and Suites

2.5 out of 5
1540 S Harbor Blvd Anaheim CA
Stay at this hotel in Anaheim. Enjoy free WiFi, valet parking (surcharge), and a 24-hour front desk. Our guests praise the helpful staff and the clean rooms ...
9/10 Wonderful! (2,653 reviews)
First of all- the location was absolutely fabulous! Right across the street from Disneyland. Our room was updated, clean, and the staff was friendly. My only complaint is that the rooms were quite small for my family of 5. We would have loved a little more room to move around, but we managed. Also, ...

Reviewed on Apr 2, 2026

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Tropicana Inn and Suites
See all 4,338 properties in Diamond Bar
Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.