There are 11 ways to get from Chicago to Diamond Bar by plane, train (Amtrak), bus (Flixbus, Greyhound), car, bus, or tram
Select an option below to see step-by-step directions and to compare ticket prices and travel times in Rome2Rio's travel planner.
Fly Chicago Midway International Airport to Ontario International Airport
best- Fly from Chicago Midway International Airport (MDW) to Ontario International Airport (ONT)plane MDW - ONT
7h 33m$156–713Fly Chicago O'Hare International Airport to Ontario International Airport
cheapest- Fly from Chicago O'Hare International Airport (ORD) to Ontario International Airport (ONT)plane ORD - ONT
7h 57m$100–443Train via Riverside
- Take the train from Chicago Union Station to Riversidetrain Southwest Chief
- Take the train from Riverside - Downtown to Pomona - Downtowntrain RIV Line
43h 48m$1,202–1,849Bus
- Take the bus from Chicago Bus Station to St Louis Bus Stationbus FlixBus 2510 / ...
- Take the bus from St Louis Bus Station to Montclair Transcenterbus Greyhound US1210
47h 43m$383–586Drive 1,989.7 mi
- Drive from Chicago to Diamond Barcar 1,989.7 mi
31h 11m$364–525Fly Chicago Midway International Airport to Los Angeles International Airport, bus
- Fly from Chicago Midway International Airport (MDW) to Los Angeles International Airport (LAX)plane MDW - LAX
- Take the bus from Union Station Patsaouras Bus Plaza E to Cal Poly Pomona Adminbus
8h 4m$140–624Fly Chicago O'Hare International Airport to Los Angeles International Airport, bus
- Fly from Chicago O'Hare International Airport (ORD) to Los Angeles International Airport (LAX)plane ORD - LAX
- Take the bus from Union Station Patsaouras Bus Plaza E to Cal Poly Pomona Adminbus
8h 19m$110–384Fly Chicago Midway International Airport to Long Beach Airport, tram
- Fly from Chicago Midway International Airport (MDW) to Long Beach Airport (LGB)plane MDW - LGB
- Take the tram from Del Amo Station to San Dimas Stationtram
10h 6m$160–717Fly Chicago Midway International Airport to Burbank Bob Hope Airport, tram
- Fly from Chicago Midway International Airport (MDW) to Burbank Bob Hope Airport (BUR)plane MDW - BUR
- Take the tram from Union Station - Metro A-Line to San Dimas Stationtram
9h 27m$202–873Fly Chicago O'Hare International Airport to John Wayne Airport Orange County, line 43 bus, line 143 bus, line 286 bus
- Fly from Chicago O'Hare International Airport (ORD) to John Wayne Airport Orange County (SNA)plane ORD - SNA
- Take the bus from Harbor-Macarthur to Fullerton Trans Ctr Dock 2bus
- Take the bus from Fullerton Trans Ctr Dock 4 to Ring-Brea Mallbus
- Take the bus from Brea Mall to Diamond Bar Blvd and Sunset Crossing Rdbus
11h 12m$140–617Train (Amtrak)
- Take the train from Chicago Union Station to Pomona Amtraktrain Texas Eagle
2d 16h$1,478–2,273
Chicago to Diamond Bar by train and bus
Comparing Your Travel Options
The cheapest way to get from Chicago to Diamond Bar is to fly and bus which costs $110 - $390 and takes 8h 19m.
The fastest way to get from Chicago to Diamond Bar is to fly which takes 7h 33m and costs $150 - $750.
No, there is no direct bus from Chicago station to Diamond Bar. However, there are services departing from Chicago Bus Station and arriving at Diamond Bar Blvd and Sunset Crossing Rd via St Louis Bus Station, Montclair Transit Center and Pomona Transit Center. The journey, including transfers, takes approximately 47h 43m.
No, there is no direct train from Chicago station to Diamond Bar. However, there are services departing from Chicago Union Station and arriving at Pomona - Downtown via Riverside - Downtown. The journey, including transfers, takes approximately 43h 48m.
The distance between Chicago and Diamond Bar is 1742 miles. The road distance is 2001.3 miles.
The best way to get from Chicago to Diamond Bar without a car is to train via Riverside which takes 43h 48m and costs $1,200 - $1,900.
It takes approximately 7h 33m to get from Chicago to Diamond Bar, including transfers.
Chicago to Diamond Bar bus services, operated by Flixbus USA, depart from Chicago Bus Station.
Chicago to Diamond Bar train services, operated by Amtrak, depart from Chicago Union Station.
The best way to get from Chicago to Diamond Bar is to fly which takes 7h 33m and costs $150 - $750. Alternatively, you can train via Riverside, which costs $1,200 - $1,900 and takes 43h 48m, you could also bus, which costs $380 - $600 and takes 47h 43m.
What companies run services between Chicago, IL, USA and Diamond Bar, CA, USA?
Southwest Airlines flies from Chicago Midway International Airport (MDW) to Ontario International Airport (ONT) 5 times a day. Alternatively, you can take a train from Chicago Union Station to Mission Blvd and Mission West Business P via Riverside - Downtown, Pomona - Downtown, and Pomona Transit Center in around 43h 48m.
- Website
- southwest.com
Flights from Chicago Midway International Airport to Ontario International Airport
- Ave. Duration
- 4h 17m
- When
- Every day
- Estimated price
- $150–700
Flights from Chicago Midway International Airport to Ontario International Airport via Las Vegas
- Ave. Duration
- 5h 57m
- When
- Monday to Wednesday
- Estimated price
- $150–700
Flights from Chicago Midway International Airport to Ontario International Airport via Denver
- Ave. Duration
- 6h 2m
- When
- Saturday and Tuesday
- Estimated price
- $150–700
Flights from Chicago Midway International Airport to Ontario International Airport via Phoenix
- Ave. Duration
- 6h 4m
- When
- Tuesday and Wednesday
- Estimated price
- $150–700
Flights from Chicago Midway International Airport to Los Angeles International Airport
- Ave. Duration
- 4h 29m
- When
- Every day
- Estimated price
- $120–550
Flights from Chicago Midway International Airport to Los Angeles International Airport via Kansas City
- Ave. Duration
- 6h 2m
- When
- Saturday, Monday, Thursday, and Friday
- Estimated price
- $120–550
Flights from Chicago Midway International Airport to Los Angeles International Airport via Las Vegas
- Ave. Duration
- 6h 3m
- When
- Tuesday to Friday
- Estimated price
- $120–550
Flights from Chicago Midway International Airport to Los Angeles International Airport via Albuquerque
- Ave. Duration
- 6h
- When
- Monday, Thursday, and Friday
- Estimated price
- $120–550
Flights from Chicago Midway International Airport to Los Angeles International Airport via Denver
- Ave. Duration
- 6h 5m
- When
- Monday to Friday
- Estimated price
- $120–550
Flights from Chicago Midway International Airport to Los Angeles International Airport via Phoenix
- Ave. Duration
- 6h 8m
- When
- Tuesday to Monday
- Estimated price
- $120–550
Flights from Chicago Midway International Airport to Long Beach Airport
- Ave. Duration
- 4h 27m
- When
- Every day
- Estimated price
- $150–700
Flights from Chicago Midway International Airport to Long Beach Airport via Phoenix
- Ave. Duration
- 6h 11m
- When
- Monday to Wednesday
- Estimated price
- $160–700
Flights from Chicago Midway International Airport to Long Beach Airport via Denver
- Ave. Duration
- 6h 10m
- When
- Monday, Thursday, Friday, Saturday, and Tuesday
- Estimated price
- $150–700
Flights from Chicago Midway International Airport to Long Beach Airport via Las Vegas
- Ave. Duration
- 6h 6m
- When
- Every day
- Estimated price
- $150–700
Flights from Chicago Midway International Airport to Burbank Bob Hope Airport
- Ave. Duration
- 4h 27m
- When
- Every day
- Estimated price
- $190–850
Flights from Chicago Midway International Airport to Burbank Bob Hope Airport via Las Vegas
- Ave. Duration
- 6h 8m
- When
- Every day
- Estimated price
- $190–850
Flights from Chicago Midway International Airport to Burbank Bob Hope Airport via Denver
- Ave. Duration
- 6h 13m
- When
- Saturday to Friday
- Estimated price
- $190–850
Flights from Chicago Midway International Airport to Burbank Bob Hope Airport via Phoenix
- Ave. Duration
- 6h 12m
- When
- Monday to Saturday
- Estimated price
- $190–850
- Website
- aa.com
Flights from Chicago O'Hare International Airport to Ontario International Airport
- Ave. Duration
- 4h 29m
- When
- Monday, Tuesday, Wednesday, Thursday, Friday, and Sunday
- Estimated price
- $95–430
Flights from Chicago O'Hare International Airport to Ontario International Airport via Phoenix
- Ave. Duration
- 6h 16m
- When
- Every day
- Estimated price
- $100–440
Flights from Chicago O'Hare International Airport to Ontario International Airport via Dallas/Ft.Worth
- Ave. Duration
- 6h 58m
- When
- Every day
- Estimated price
- $110–470
Flights from Chicago O'Hare International Airport to Los Angeles International Airport
- Ave. Duration
- 4h 39m
- When
- Every day
- Estimated price
- $75–340
Flights from Chicago O'Hare International Airport to John Wayne Airport Orange County
- Ave. Duration
- 4h 37m
- When
- Every day
- Estimated price
- $130–600
Flights from Chicago O'Hare International Airport to John Wayne Airport Orange County via Phoenix
- Ave. Duration
- 6h 41m
- When
- Every day
- Estimated price
- $130–600
- Website
- united.com
Flights from Chicago O'Hare International Airport to Ontario International Airport
- Ave. Duration
- 4h 32m
- When
- Every day
- Estimated price
- $95–430
Flights from Chicago O'Hare International Airport to Ontario International Airport via Denver
- Ave. Duration
- 6h 31m
- When
- Every day
- Estimated price
- $95–430
Flights from Chicago O'Hare International Airport to Los Angeles International Airport
- Ave. Duration
- 4h 38m
- When
- Every day
- Estimated price
- $75–340
Flights from Chicago O'Hare International Airport to John Wayne Airport Orange County
- Ave. Duration
- 4h 42m
- When
- Every day
- Estimated price
- $130–600
Flights from Chicago O'Hare International Airport to John Wayne Airport Orange County via Denver
- Ave. Duration
- 6h 42m
- When
- Every day
- Estimated price
- $130–600
- Website
- delta.com
Flights from Chicago O'Hare International Airport to Ontario International Airport via Salt Lake City
- Ave. Duration
- 7h 1m
- When
- Every day
- Estimated price
- $100–450
Flights from Chicago O'Hare International Airport to Los Angeles International Airport
- Ave. Duration
- 4h 34m
- When
- Every day
- Estimated price
- $75–340
- Website
- flyfrontier.com
Flights from Chicago O'Hare International Airport to Los Angeles International Airport
- Ave. Duration
- 4h 40m
- When
- Every day
- Estimated price
- $95–260
Rome2Rio's guide to Amtrak
Contact DetailsContact Details
- Phone
- +1 800-872-7245
- Website
- Amtrak
Train from Chicago Union Station to Riverside
- Ave. Duration
- 41h 45m
- Frequency
- Once daily
- Estimated price
- $1,100–1,900
- Website
- Amtrak
Train from Chicago Union Station to Pomona Amtrak
- Ave. Duration
- 2d 15h
- Frequency
- 3 times a week
- Estimated price
- $1,400–2,300
- Website
- Amtrak
- Phone
- (800) 371-LINK (5465)
- Website
- Metrolink Trains
Train from Riverside - Downtown to Pomona - Downtown
- Ave. Duration
- 40 min
- Frequency
- 4 times a day
- Estimated price
- $7–11
- Website
- Metrolink Trains
- Phone
- +1-323-466-3876
- [email protected]
- Website
- Metro Los Angeles
Tram from Del Amo Station to San Dimas Station
- Ave. Duration
- 1h 49m
- Frequency
- Every 15 minutes
- Estimated price
- $2
- Website
- Metro Los Angeles
Tram from Union Station - Metro A-Line to San Dimas Station
- Ave. Duration
- 1h
- Frequency
- Every 15 minutes
- Estimated price
- $1–2
- Website
- Metro Los Angeles
- Phone
- +1 (855) 626-8585
- Website
- Flixbus USA
Bus from Chicago Bus Station to St Louis Bus Station
- Ave. Duration
- 5h 55m
- Frequency
- Twice daily
- Estimated price
- $50–75
- Schedules at
- Flixbus USA
Rome2Rio's guide to Greyhound USA
Contact DetailsContact Details
- Phone
- +1 214-849-8100
- [email protected]
- Website
- Greyhound
Bus from St Louis Bus Station to Montclair Transcenter
- Ave. Duration
- 39h 35m
- Frequency
- Once daily
- Estimated price
- $330–500
- Website
- Greyhound
- Phone
- +1 800-743-3463
- [email protected]
- Website
- Foothill Transit
Bus from Union Station Patsaouras Bus Plaza E to Cal Poly Pomona Admin
- Ave. Duration
- 53 min
- Frequency
- Every 30 minutes
- Estimated price
- $1–6
- Website
- Foothill Transit
Bus from Union Station Patsaouras Bus Plaza E to Cal Poly Pomona Admin
- Ave. Duration
- 53 min
- Frequency
- Every 30 minutes
- Estimated price
- $1–6
- Website
- Foothill Transit
Bus from Brea Mall to Diamond Bar Blvd and Sunset Crossing Rd
- Ave. Duration
- 28 min
- Frequency
- Hourly
- Estimated price
- $1–6
- Website
- Foothill Transit
- Phone
- +1 714-560-6282
- Website
- octa.net
Bus from Harbor-Macarthur to Fullerton Trans Ctr Dock 2
- Ave. Duration
- 1h 11m
- Frequency
- Every 15 minutes
- Estimated price
- $2
- Schedules at
- octa.net
- Adult One-way
- $2
Bus from Fullerton Trans Ctr Dock 4 to Ring-Brea Mall
- Ave. Duration
- 25 min
- Frequency
- Hourly
- Estimated price
- $2
- Schedules at
- octa.net
- Adult One-way
- $2
Want to know more about travelling around United States
Rome2Rio's Travel Guide series provide vital information for the global traveller. Filled with useful and timely travel information, the guides answer all the hard questions - such as 'How do I buy a ticket?', 'Should I book online before I travel? ', 'How much should I expect to pay?', 'Do the trains and buses have Wifi?' - to help you get the most out of your next trip.
Related travel guides
Travelling to the US: What do I need to know?
Read the travel guide
Why you should take the train in the US
Read the travel guide
Need to know: Greyhound
Read the travel guide
Booking & Getting There
Chicago to Diamond Bar bus services, operated by Flixbus USA, arrive at St Louis Bus Station.
Diamond Bar is 2h behind Chicago. It is currently 1:19 PM in Chicago and 11:19 AM in Diamond Bar.
Chicago to Diamond Bar train services, operated by Amtrak, arrive at Riverside station.
Yes, the driving distance between Chicago to Diamond Bar is 2001 miles. It takes approximately 31h 11m to drive from Chicago to Diamond Bar.
There are 467+ hotels available in Diamond Bar.

















