A person in a white dress sitting in a field of wildflowers with hills in the background.

Cheap Flights to Diamond Bar

View ฿13,725 flight on Thu, 12 Nov 2026Opens in a new window

Popular airlines to Diamond Bar

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 40% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap round-trip flights to Diamond Bar

Prices were available within the past 7 days and start at ฿13,725 for one-way flights and ฿23,145 for round trip, for the period specified. Be sure to select the 'Direct flights only' box above if you are looking for a non stop route. Prices and availability are subject to change. Additional terms apply.

Korean Air
China Southern Airlines
United
Delta
Xiamen Airlines

Find the cheapest month to fly from Columbus (CMH) to Los Angeles (LAX)

From ฿7,663 - ฿10,579 per traveller.

Frequently asked questions

What is the name of Diamond Bar's airport?
Diamond Bar is served by just a single airport, Los Angeles Intl. Airport (LAX).
What airport is best to fly into Diamond Bar?
Diamond Bar is a favourite with travellers, and it has the airports to prove it. If you're heading off on a trip to this lively city, you'll likely step off the plane at Los Angeles Intl. Airport (LAX) (56 kilometres from downtown). If not, it'll probably be Ontario Airport (23 kilometres from downtown) or Long Beach Airport (32 kilometres from downtown).
How many airlines fly to Diamond Bar?
Diamond Bar is serviced by 63 airlines from at least 155 airports around the world.
Which airlines fly to Diamond Bar?
Most often, travellers fly with Southwest Airlines, Spirit Airlines and Delta Air Lines when going to Diamond Bar. The biggest proportion of these flights come from Las Vegas, with Southwest Airlines operating this route the most frequently.
How many nonstop flights are there to Diamond Bar?
With around 5,323 nonstop flights every week, you'll be landing in Diamond Bar before you can ask, "Are we there yet?"
Where are the most popular flights to Diamond Bar departing from?
Travellers often jet off from San Francisco, Dallas and Seattle airports when going to Diamond Bar.
How long is the flight to Diamond Bar Airport?
Where you depart from determines how much of the in-flight entertainment you'll get to see. From Las Vegas to Diamond Bar, the average flight time is 1 hour and 8 minutes. From San Francisco it's more or less 1 hour and 27 minutes, and from Phoenix it's 1 hour and 21 minutes.
How to book the cheapest flight to Diamond Bar?
If you want to have some extra spending money on your trip to Diamond Bar, then listen up! As any experienced traveller will tell you, don't leave booking until the last minute. Airfares are usually more expensive close to the departure date. Also, do some online research and compare your options. If your destination has several airports, you may be able to nab a great price by flying into a less busy terminal. Lastly, another easy way to save a few dollars is be ready to book at a moment's notice. If you stumble on an amazing deal, don't think twice — grab it while the opportunity's there.
How to survive the flight to Diamond Bar?
Depending on where you're coming from, your trip to Diamond Bar could be a piece of cake or it could drag on forever. We've put together some useful tips that will help you start your next big adventure on the right foot.What to pack in your hand luggage:
  • Air travel can be easy if you bring the right stuff. Firstly, you'll want a few basic toiletry items, such as a toothbrush and some deodorant, a clean pair of socks and a magazine or two. Next, make room in your hand luggage for your electronic devices, chargers, any daily medications and maybe a quality neck pillow as well. Lastly, and most importantly, remember to take your passport, travel papers and some cash.
Do not pack the following items in your hand luggage:
  • Pack all your full-sized bottles of shampoo and hairspray in your checked baggage. Any gels or liquids in your carry-on suitcase larger than 3.4 ounces (100 milliliters) won't be allowed on. Sharp or pointed objects, like a pocket knife, and dangerous products which are flammable or explosive, such as flares, chemicals agents and matches, are also banned.
What to wear on a flight:
  • The key to a comfortable flight can be as simple as your choice in clothes. Prepare yourself for varying temperatures by bringing layers. This will keep you nice and warm if the cabin begins to cool down. Shoes like sandals and heels are best left for other occasions. Instead, opt for flat, closed-toed footwear like sneakers. Your feet will appreciate it.
  • Most travellers are aware of deep vein thrombosis (DVT), a blood clotting condition caused by reduced mobility or inactivity. There's plenty you can do to lower your risk. Wear compression socks or tights, drink lots of water and get your legs and feet moving. Walk around the cabin when possible or perform some stretches in your seat.
How to get through airport security fast when flying to Diamond Bar?
The answer is simple — be prepared. We've pulled together some handy tips and tricks for an easy trip through airport security. Look out Diamond Bar, here you come:
  • First things first. Your travel ID and boarding pass will need to be presented to airport security personnel. Have them close by to avoid fumbling around for them.
  • Next up, both you and your hand luggage will be X-rayed. To speed things up, remove anything that might trigger the alarms. Personal belongings such as your belt, coat and headphones will be required to go through the machine.
  • Electronic devices like laptops and phones will also need to go on a tray for inspection. Don't worry, you'll be back online soon enough.
  • Travelling with your favourite perfume? Not a problem. As long as the volume is no greater than 3.4 ounces (100 milliliters) and it's stored in a zip-close bag, you can keep it with you in your carry-on baggage.
  • Lightweight sneakers are a good footwear choice as you're less likely to be required to remove them when going through security. Boots and other bulky shoes are usually subjected to extra screening.
  • Take all prohibited items out of your carry-on bag. If you have any sharp or pointed objects, pack them in your checked suitcase. They won't be allowed on board and will be confiscated.

Book with confidence

Flights to Diamond Bar

Searching for cheap flights to Diamond Bar? No travel company presents more choices than Expedia if you're looking to compare flights to Diamond Bar. With more airlines, cheaper flights, fewer stops, and more departure and arrival times travellers should ensure they search on Expedia before any holiday to Diamond Bar. Expedia provides the cheapest flights to Diamond Bar and you may find even greater savings if you combine your flight to Diamond Bar with a hotel stay. Travellers who are flexible about flight times can benefit from last minute cheap flights to Diamond Bar.

Expedia is the largest online travel agency which means that Expedia have access to cheap airline tickets. So make sure you check Expedia regularly for these bargain flights because the cheapest airline ticket deals sell out fast.

Expedia is not only free for everyone to use but it quick and easy to use. Find the lowest flight prices guaranteed and book directly through Expedia. Browse through hundreds of cheap flight offers to find the one that suits your budget by simply inputting your travel dates. Expedia will then find the cheapest flights to Diamond Bar for that period and let you choose your preferred time and airline.

Travel information

Destination airport
Los Angeles Intl.
Destination airport IATA code
LAX
Destination city name
Los Angeles
Roundtrip price
฿23,145

Trending flights to Diamond Bar

Prices were available within the past 7 days and start at ฿13,725 for one-way flights and ฿23,145 for round trip, for the period specified. Be sure to select the 'Direct flights only' box above if you are looking for a non stop route. Prices and availability are subject to change. Additional terms apply.

Korean Air
*Available to Expedia members.