If you're traveling on a shoestring budget, it's best to rely on public transportation or ride-sharing services. You can take the Metro Gold Line train to the Azusa Downtown Station and then use a ride-sharing service to get to the other attractions on this itinerary. The cost for a one-way Metro ride is $1.75 and the entire trip should take about 30 minutes.
If you have more time, consider visiting nearby attractions like the Angeles National Forest or exploring the downtown areas of surrounding cities. If you have less time, you can skip the Huerta del Valle Community Garden or the Route 66 Museum and spend more time enjoying the outdoors at Monrovia Canyon Park or the City of Hope Rose Garden.
The closest airport to Bradbury is the Ontario International Airport (ONT), which is about 30 miles away. The airport code is ONT and it's located in the city of Ontario. If you're traveling on a budget, consider flying into the Los Angeles International Airport (LAX) and taking public transportation or a ride-sharing service to Bradbury.