Flight
LAX is the largest airport that most airlines fly into. It's about 45 minutes from Temple City, but there will be plenty of fun places for you to explore in the area! You may also want to check Hollywood Burbank Airport (BUR) or Ontario California International Airport (ONT). They're smaller but they sometimes have cheaper flights and they're both about 35 minutes away from our wedding venue! KAYAK is our recommended booking service, so you may want to start there.
Hotel
We originally planned on reserving a hotel block but it's actually cheaper to book online with their online discounts, so do that instead! If you're a Hilton Honors member, you can get a room with 2 queen beds for around $150. If you do an "Advance Purchase" booking (non-refundable), you can get a room for as low as $120! This hotel is only 13 minutes away from the wedding venue.
House Or Rental
Here's a link to all of the Airbnbs in the Pasadena area under $100/night! This might be your most cost-effective option if you're coming with a group. :)