Cheap Flights To Diamond Bar 2026

Diamond Bar Flights as Low as $183

These prices were available within the past 7 days. Prices quoted are per person, round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Frontier Airlines
Frontier Airlines
Tue, Sep 22 - Tue, Oct 6
BWI
Baltimore Washington Intl. Thurgood Marshall
LAX
Los Angeles Intl.
$188
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Tue, Sep 22 from Baltimore Washington Intl. Thurgood Marshall to Los Angeles Intl., returning Tue, Oct 6, priced at $188 found 2 days ago
Frontier Airlines
United
Fri, Sep 18 - Sun, Sep 20
IAD
Washington Dulles Intl.
LAX
Los Angeles Intl.
$257
Roundtrip
found 3 days ago
Select United flight, departing Fri, Sep 18 from Washington Dulles Intl. to Los Angeles Intl., returning Sun, Sep 20, priced at $257 found 3 days ago
American Airlines
Alaska Airlines
Frontier Airlines
Southwest Airlines
Tue, Oct 20 - Fri, Oct 30
BWI
Baltimore Washington Intl. Thurgood Marshall
LGB
Long Beach Municipal
$312
Roundtrip
found 1 hour ago
Select Southwest Airlines flight, departing Tue, Oct 20 from Baltimore Washington Intl. Thurgood Marshall to Long Beach Municipal, returning Fri, Oct 30, priced at $312 found 1 hour ago
Frontier Airlines
Delta
Mon, Nov 16 - Wed, Dec 2
BWI
Baltimore Washington Intl. Thurgood Marshall
LAX
Los Angeles Intl.
$337
Roundtrip
found 1 day ago
Select Delta flight, departing Mon, Nov 16 from Baltimore Washington Intl. Thurgood Marshall to Los Angeles Intl., returning Wed, Dec 2, priced at $337 found 1 day ago
JetBlue Airways
United
Tue, Jan 5 - Sat, Jan 9
BWI
Baltimore Washington Intl. Thurgood Marshall
SNA
John Wayne
$377
Roundtrip
found 2 days ago
Select United flight, departing Tue, Jan 5 from Baltimore Washington Intl. Thurgood Marshall to John Wayne, returning Sat, Jan 9, priced at $377 found 2 days ago
Delta
Fri, Dec 11 - Sun, Dec 13
DCA
Ronald Reagan Washington National
SNA
John Wayne
$379
Roundtrip
found 2 days ago
Select Delta flight, departing Fri, Dec 11 from Ronald Reagan Washington National to John Wayne, returning Sun, Dec 13, priced at $379 found 2 days ago
Sun Country Airlines
Southwest Airlines

Diamond Bar Flights

If Diamond Bar is calling your name, then book a flight to (airport). And with the AARP Travel Center Powered by Expedia®, can become a reality sooner than you think. With the best rates from Expedia combined with members-only discounts, AARP Travel offers members the best price in travel, guaranteed.

As an AARP member, you'll get exclusive rates on:

  • Hotels
  • Car rentals
  • Flights
  • Waived booking fees on flights

Whether this trip is for business or pleasure–we will help you get there (without breaking the bank).

Transportation at the Airport

Once you've reserved plane tickets to Diamond Bar with AARP Travel, you might want to book a vehicle so you can get around the city. You can book Diamond Bar rental cars under our cars tab and get in the driver's seat right when you step out of the airport. For more information, check out the Diamond Bar Car Rentals Guide.

Things to Do in Diamond Bar

If you aren't sure where to start, we can help you with that as well. Not to worry—there's plenty to do in this city. No matter what you decide to do with your time, you're sure to have fun in this city.

If you're looking for some fun activities to do in Diamond Bar, make sure you check out our "Things to Do in Diamond Bar" page for activities and excursions for the whole crew.

Book Your Hotel in Diamond Bar

Diamond Bar has lodging options in the area, make sure you check out our hotel listings tab for some great recommendations from past visitors. No matter where you stay, just remember that you'll get the best price out there when you stay with us.

Book Your Diamond Bar Trip Now

Whether you are heading out on an exploration to a place you have never been before, bringing the family on the annual trip, or a business trip, we have the perfect getaway waiting for you. There is no better time than now to start booking your next trip. Book one of our flights today.