There are 6 ways to get from Boulder to Sydney by bus, plane, train, or shuttle
Select an option below to see step-by-step directions and to compare ticket prices and travel times in Rome2Rio's travel planner.
Bus to Denver, fly to Sydney International Airport
best- Take the bus from US 36 & Flatiron Station Gate A to Denver Airport Station Gate 6bus
- Fly from Denver (DEN) to Sydney International Airport (SYD)plane DEN - SYD
22h 15m$1,327–5,532Bus, bus to Aspen–Pitkin County Airport, fly to Sydney International Airport
cheapest- Take the bus from Broadway & 20th St to Union Stationbus
- Take the bus from Union Station Gate B19 to West Glenwood Park & Ridebus
- Take the bus from West Glenwood Park & Ride to AABC Airport UVbus
- Fly from Aspen–Pitkin County Airport (ASE) to Sydney International Airport (SYD)plane ASE - SYD
28h$713–2,485Bus to Denver, fly to Newcastle Airport, train
- Take the bus from US 36 & Flatiron Station Gate A to Denver Airport Station Gate 6bus
- Fly from Denver (DEN) to Newcastle Airport (NTL)plane DEN - NTL
- Take the train from Hamilton Station to Central Stationtrain
28h 5m$922–3,228Bus, bus to Eagle County Regional Airport, fly to Sydney International Airport
- Take the bus from US 36 & Flatiron Station Gate A to Denver Airport Station Gate 6bus
- Take the bus from Denver International Airport to Vail Transportation Centerbus
- Take the bus from Vail Transportation Center to Eagle County Airportbus
- Fly from Eagle County Regional Airport (EGE) to Sydney International Airport (SYD)plane EGE - SYD
30h 38m$937–2,742Bus, bus to Colorado Springs Airport, fly to Sydney International Airport
- Take the bus from US 36 & Flatiron Station Gate A to Denver Airport Station Gate 6bus
- Take the bus from Denver International Airport to Colorado Springs Airportbus
- Fly from Colorado Springs Airport (COS) to Sydney International Airport (SYD)plane COS - SYD
28h 12m$1,192–4,222Shuttle to Yampa Valley Airport, fly to Sydney International Airport
- Take a shuttle bus from I-70/Kipling St., West Denver, CO to Steamboat Springs, CO
- Fly from Yampa Valley Airport (HDN) to Sydney International Airport (SYD)plane HDN - SYD
29h 50m$833–2,614
Denver (DEN) to Sydney International Airport (SYD) flights
Questions & Answers
The cheapest way to get from Boulder to Sydney is to bus and fly which costs $700 - $2,500 and takes 28h.
The fastest way to get from Boulder to Sydney is to bus and fly which takes 22h 15m and costs $1,300 - $6,000.
The distance between Boulder and Sydney is 13521 km.
It takes approximately 22h 15m to get from Boulder to Sydney, including transfers.
Sydney is 18h ahead of Boulder. It is currently 2:06 AM in Boulder and 8:06 PM in Sydney.
There are 4780+ hotels available in Sydney.
What companies run services between Boulder, CO, USA and Sydney, NSW, Australia?
There is no direct connection from Boulder to Sydney. However, you can take the bus to US 36 & Flatiron Station Gate D, walk to US 36 & Flatiron Station Gate A, take the bus to Denver Airport Station Gate 6, walk to Denver (DEN) airport, fly to Sydney International Airport (SYD), walk to International Airport Station, then take the train to Central Station. Alternatively, you can take the bus to US 36 & Flatiron Station Gate D, walk to US 36 & Flatiron Station Gate A, take the bus to Denver Airport Station Gate 6, walk to Denver (DEN) airport, fly to Newcastle Airport (NTL), walk to Newcastle Airport, Williamtown Dr, take the bus to Maitland Rd Opp Beaumont St, walk to Hamilton Station, then take the train to Central Station.
- Website
- united.com
Flights from Denver to Sydney International Airport via Los Angeles
- Ave. Duration
- 19h 25m
- When
- Every day
- Estimated price
- $750–2,800
Flights from Denver to Sydney International Airport via Los Angeles, Auckland
- Ave. Duration
- 21h 8m
- When
- Every day
- Estimated price
- $800–2,900
Flights from Denver to Newcastle Airport via San Francisco, Melbourne
- Ave. Duration
- 25h 24m
- When
- Every day
- Estimated price
- $1,000–3,500
Flights from Denver to Newcastle Airport via Los Angeles, Melbourne
- Ave. Duration
- 25h 25m
- When
- Every day
- Estimated price
- $950–3,500
Flights from Aspen–Pitkin County Airport to Sydney International Airport via San Francisco
- Ave. Duration
- 23h 14m
- When
- Every day
- Estimated price
- $650–2,500
Flights from Aspen–Pitkin County Airport to Sydney International Airport via Los Angeles
- Ave. Duration
- 21h 32m
- When
- Every day
- Estimated price
- $650–2,400
Flights from Aspen–Pitkin County Airport to Sydney International Airport via Los Angeles, Auckland
- Ave. Duration
- 21h 12m
- When
- Every day
- Estimated price
- $700–2,500
Flights from Eagle County Regional Airport to Sydney International Airport via Los Angeles
- Ave. Duration
- 25h 6m
- When
- Monday, Thursday, Friday, Saturday, and Sunday
- Estimated price
- $650–2,400
Flights from Eagle County Regional Airport to Sydney International Airport via San Francisco
- Ave. Duration
- 26h 7m
- When
- Every day
- Estimated price
- $650–2,500
Flights from Eagle County Regional Airport to Sydney International Airport via Los Angeles, Auckland
- Ave. Duration
- 24h 46m
- When
- Monday, Thursday, Friday, Saturday, and Sunday
- Estimated price
- $700–2,500
Flights from Yampa Valley Airport to Sydney International Airport via San Francisco
- Ave. Duration
- 21h 30m
- When
- Saturday
- Estimated price
- $650–2,500
Flights from Yampa Valley Airport to Sydney International Airport via Los Angeles
- Ave. Duration
- 22h 7m
- When
- Monday, Thursday, Friday, Saturday, and Sunday
- Estimated price
- $650–2,400
Flights from Yampa Valley Airport to Sydney International Airport via Los Angeles, Auckland
- Ave. Duration
- 21h 47m
- When
- Monday, Thursday, Friday, Saturday, and Sunday
- Estimated price
- $700–2,500
Flights from Yampa Valley Airport to Sydney International Airport via San Francisco, Auckland
- Ave. Duration
- 23h 55m
- When
- Saturday
- Estimated price
- $700–2,600
Flights from Yampa Valley Airport to Sydney International Airport via San Francisco, Brisbane
- Ave. Duration
- 26h 50m
- When
- Saturday
- Estimated price
- $700–2,500
- Website
- delta.com
Flights from Denver to Sydney International Airport via Los Angeles
- Ave. Duration
- 20h 55m
- When
- Every day
- Estimated price
- $750–2,800
Flights from Aspen–Pitkin County Airport to Sydney International Airport via Los Angeles
- Ave. Duration
- 21h 36m
- When
- Every day
- Estimated price
- $650–2,400
Flights from Eagle County Regional Airport to Sydney International Airport via Los Angeles
- Ave. Duration
- 23h 14m
- When
- Tuesday, Thursday, Saturday, and Sunday
- Estimated price
- $650–2,400
Flights from Yampa Valley Airport to Sydney International Airport via Los Angeles
- Ave. Duration
- 19h 52m
- When
- Thursday, Saturday, and Sunday
- Estimated price
- $650–2,400
- Website
- qantas.com
Flights from Denver to Sydney International Airport via Los Angeles
- Ave. Duration
- 19h 7m
- When
- Every day
- Estimated price
- $750–3,500
Flights from Denver to Newcastle Airport via Los Angeles, Brisbane
- Ave. Duration
- 24h 50m
- When
- Monday, Wednesday, Thursday, and Saturday
- Estimated price
- $1,100–3,900
Flights from Aspen–Pitkin County Airport to Sydney International Airport via Los Angeles
- Ave. Duration
- 19h 16m
- When
- Monday, Wednesday, Thursday, Friday, Saturday, and Sunday
- Estimated price
- $650–2,400
Flights from Colorado Springs Airport to Sydney International Airport via Dallas/Ft.Worth
- Ave. Duration
- 21h 38m
- When
- Monday, Tuesday, Thursday, Friday, and Sunday
- Estimated price
- $1,400–4,900
Flights from Colorado Springs Airport to Sydney International Airport via Dallas/Ft.Worth, Brisbane
- Ave. Duration
- 25h 38m
- When
- Monday, Tuesday, Thursday, Friday, and Sunday
- Estimated price
- $1,100–4,100
- Website
- airnewzealand.com
Flights from Denver to Sydney International Airport via Los Angeles
- Ave. Duration
- 19h 25m
- When
- Every day
- Estimated price
- $750–2,800
Flights from Denver to Sydney International Airport via Los Angeles, Auckland
- Ave. Duration
- 21h 8m
- When
- Every day
- Estimated price
- $800–2,900
Flights from Aspen–Pitkin County Airport to Sydney International Airport via San Francisco
- Ave. Duration
- 19h 48m
- When
- Every day
- Estimated price
- $650–2,500
Flights from Aspen–Pitkin County Airport to Sydney International Airport via Los Angeles
- Ave. Duration
- 21h 32m
- When
- Every day
- Estimated price
- $650–2,400
Flights from Aspen–Pitkin County Airport to Sydney International Airport via Los Angeles, Auckland
- Ave. Duration
- 21h 12m
- When
- Every day
- Estimated price
- $700–2,500
Flights from Yampa Valley Airport to Sydney International Airport via San Francisco, Auckland
- Ave. Duration
- 23h 55m
- When
- Saturday
- Estimated price
- $700–2,600
- Website
- virginaustralia.com
Flights from Denver to Sydney International Airport via Los Angeles
- Ave. Duration
- 19h 25m
- When
- Every day
- Estimated price
- $750–2,800
Flights from Denver to Newcastle Airport via San Francisco, Brisbane
- Ave. Duration
- 21h 32m
- When
- Every day
- Estimated price
- $900–3,200
Flights from Denver to Newcastle Airport via San Francisco, Melbourne
- Ave. Duration
- 25h 24m
- When
- Every day
- Estimated price
- $1,000–3,500
Flights from Denver to Newcastle Airport via Los Angeles, Melbourne
- Ave. Duration
- 25h 25m
- When
- Every day
- Estimated price
- $950–3,500
Flights from Denver to Newcastle Airport via Los Angeles, Brisbane
- Ave. Duration
- 23h 21m
- When
- Monday, Wednesday, and Friday
- Estimated price
- $900–3,200
- Website
- aa.com
Flights from Denver to Sydney International Airport via Los Angeles
- Ave. Duration
- 19h 7m
- When
- Every day
- Estimated price
- $750–3,500
Flights from Aspen–Pitkin County Airport to Sydney International Airport via Los Angeles
- Ave. Duration
- 19h 16m
- When
- Monday, Wednesday, Thursday, Friday, Saturday, and Sunday
- Estimated price
- $650–2,400
Flights from Eagle County Regional Airport to Sydney International Airport via Los Angeles
- Ave. Duration
- 25h 24m
- When
- Monday, Thursday, Friday, Saturday, and Sunday
- Estimated price
- $650–2,400
Flights from Eagle County Regional Airport to Sydney International Airport via Los Angeles, Brisbane
- Ave. Duration
- 25h 44m
- When
- Monday, Thursday, and Saturday
- Estimated price
- $900–3,100
Flights from Colorado Springs Airport to Sydney International Airport via Dallas/Ft.Worth
- Ave. Duration
- 21h 38m
- When
- Monday, Tuesday, Thursday, Friday, and Sunday
- Estimated price
- $1,400–4,900
- Phone
- 131 500
- Website
- transportnsw.info
Train from Hamilton Station to Central Station
- Ave. Duration
- 2h 52m
- Frequency
- Every 30 minutes
- Estimated price
- $10–13
- Website
- https://transportnsw.info/regional
- Phone
- +1 303-299-6000
- Website
- rtd-denver.com
Bus from US 36 & Flatiron Station Gate A to Denver Airport Station Gate 6
- Ave. Duration
- 40 min
- Frequency
- Hourly
- Estimated price
- $5
- Website
- https://www.rtd-denver.com/
- Adult
- $5
Bus from Broadway & 20th St to Union Station
- Ave. Duration
- 45 min
- Frequency
- Hourly
- Estimated price
- $5
- Website
- https://www.rtd-denver.com/
- Adult
- $5
- Phone
- +1 800-900-3011
- Website
- ridebustang.com
Bus from Union Station Gate B19 to West Glenwood Park & Ride
- Ave. Duration
- 3h 55m
- Frequency
- Hourly
- Estimated price
- $35–50
- Website
- https://ridebustang.com
- Phone
- +1 970-925-8484
- Website
- rfta.com
Bus from West Glenwood Park & Ride to AABC Airport UV
- Ave. Duration
- 1h 25m
- Frequency
- Every 15 minutes
- Schedules at
- rfta.com
- Phone
- +1 970-754-7433
- Website
- epicmountainexpress.com
Bus from Denver International Airport to Vail Transportation Center
- Ave. Duration
- 1h 37m
- Frequency
- Every 2 hours
- Estimated price
- $170–200
- Website
- https://www.epicmountainexpress.com/
Bus from Vail Transportation Center to Eagle County Airport
- Ave. Duration
- 1h
- Frequency
- Every 2 hours
- Estimated price
- $70–110
- Website
- https://www.epicmountainexpress.com/
- Phone
- +1 970-328-3520
- info@coretransit.org
- Website
- evta.colorado.gov
Bus from Vail Transportation Center to Eagle County Airport
- Ave. Duration
- 59 min
- Frequency
- Hourly
- Estimated price
- $6
- Website
- https://evta.colorado.gov
- Schedules at
- https://evta.colorado.gov/schedule
- Phone
- +1 719-687-3456
- Website
- groometransportation.com
Bus from Denver International Airport to Colorado Springs Airport
- Ave. Duration
- 2h 25m
- Frequency
- Hourly
- Estimated price
- $65–90
- Website
- https://groometransportation.com/colorado-springs/
- Phone
- +1 800-822-4844
- reservations@destinationsystems.com
- Website
- letsride.co
Shuttle from I-70/Kipling St., West Denver, CO to Steamboat Springs, CO
- Ave. Duration
- 3h 30m
- Frequency
- On demand
- Estimated price
- $135–150
- Website
- https://letsride.co
Want to know more about travelling around Australia
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
10 amazing places to get away from it all in Australia
Read the travel guide
4 of the smartest ways to explore Australia
Read the travel guide
Travelling to the US: What do I need to know?
Read the travel guide












