There are 8 ways to get from Seattle to Longmont by plane, bus, bus (Flixbus), train, car, or bus (Greyhound, Flixbus)
Select an option below to see step-by-step directions and to compare ticket prices and travel times in Rome2Rio's travel planner.
Fly Seattle-Tacoma International Airport to Denver, bus
best- Fly from Seattle-Tacoma International Airport (SEA) to Denver (DEN)SEA - DEN
- Take the bus from Union Station Gate B18 to Main St & 3rd Ave
7h 14m$110–538Bus
- Take the bus from Seattle Bus Station to Spokane Station
- Take the bus from Spokane to Billings
- Take the bus from Billings, MT to Casper Amtrak Station
- Take the bus from Casper Amtrak Station to Denver Union Station
- Take the bus from Union Station Gate B18 to Main St & 3rd AveLd1 / ...
32h 47m$271–506Train, bus
- Take the train from Seattle to Sacramento
- Take the train from Sacramento to Denver
- Take the bus from Union Station Gate B18 to S Main St & Delaware AveLd1 / ...
2d 6h$231–1,764Drive 1,250 mi
- Drive from Seattle to Longmont1,250 mi
20h 16m$229–330Fly Paine Field County Airport to Denver, bus
- Fly from Paine Field County Airport (PAE) to Denver (DEN)PAE - DEN
- Take the bus from Union Station Gate B18 to Main St & 3rd Ave
8h 33m$138–621Fly Seattle-Tacoma International Airport to Colorado Springs Airport, bus
- Fly from Seattle-Tacoma International Airport (SEA) to Colorado Springs Airport (COS)SEA - COS
- Take the bus from Colorado Springs to 8th & Coffman PnR Longmont
10h 46m$135–480Train to Portland International Airport, fly to Denver, bus
- Take the train from Seattle to Portland
- Fly from Portland International Airport (PDX) to Denver (DEN)PDX - DEN
- Take the bus from Union Station Gate B18 to Main St & 3rd Ave
10h 34m$197–842Bus via Sacramento
- Take the bus from Seattle Bus Station to Sacramento Bus Station
- Take the bus from Sacramento Bus Station to Sparks Transit Center
- Take the bus from Sparks Transit Center to Denver Union Station
- Take the bus from Union Station Gate B18 to Main St & 3rd AveLd1 / ...
43h 22m$175–421
Seattle to Longmont by bus
Questions & Answers
The cheapest way to get from Seattle to Longmont is to bus via Sacramento which costs $170 - $430 and takes 43h 22m.
The fastest way to get from Seattle to Longmont is to fly and bus which takes 7h 14m and costs $110 - $550.
No, there is no direct bus from Seattle station to Longmont. However, there are services departing from Seattle Bus Station and arriving at Main St & 3rd Ave via Spokane, Billings, MT, Casper Amtrak Station and Union Station Gate B18. The journey, including transfers, takes approximately 32h 47m.
The distance between Seattle and Longmont is 1100 miles. The road distance is 1257.3 miles.
The best way to get from Seattle to Longmont without a car is to bus which takes 32h 47m and costs $270 - $550.
It takes approximately 7h 14m to get from Seattle to Longmont, including transfers.
Seattle to Longmont bus services, operated by Flixbus USA, depart from Seattle Bus Station.
Seattle to Longmont bus services, operated by Flixbus USA, arrive at Spokane Station.
Longmont is 1h ahead of Seattle. It is currently 8:42 AM in Seattle and 9:42 AM in Longmont.
Yes, the driving distance between Seattle to Longmont is 1257 miles. It takes approximately 20h 16m to drive from Seattle to Longmont.
What companies run services between Seattle, WA, USA and Longmont, CO, USA?
You can take a bus from Seattle Bus Station to Main St & 3rd Ave via Spokane, Billings, Billings, MT, Casper Amtrak Station, Denver Union Station, and Union Station Gate B18 in around 32h 47m.
- Website
- southwest.com
Flights from Seattle-Tacoma International Airport to Denver
- Ave. Duration
- 2h 35m
- When
- Every day
- Estimated price
- $110–600
Flights from Seattle-Tacoma International Airport to Colorado Springs Airport via Denver
- Ave. Duration
- 4h 40m
- When
- Every day
- Estimated price
- $85–420
Flights from Seattle-Tacoma International Airport to Colorado Springs Airport via Phoenix
- Ave. Duration
- 6h 25m
- When
- Monday, Wednesday, and Thursday
- Estimated price
- $110–550
Flights from Seattle-Tacoma International Airport to Colorado Springs Airport via Dallas
- Ave. Duration
- 6h 30m
- When
- Monday
- Estimated price
- $140–650
Flights from Seattle-Tacoma International Airport to Colorado Springs Airport via Las Vegas
- Ave. Duration
- 7h 17m
- When
- Monday
- Estimated price
- $100–480
Flights from Portland International Airport to Denver
- Ave. Duration
- 2h 24m
- When
- Every day
- Estimated price
- $150–750
- Website
- united.com
Flights from Seattle-Tacoma International Airport to Denver
- Ave. Duration
- 2h 47m
- When
- Every day
- Estimated price
- $110–600
Flights from Seattle-Tacoma International Airport to Colorado Springs Airport via Denver
- Ave. Duration
- 5h 4m
- When
- Every day
- Estimated price
- $85–420
Flights from Portland International Airport to Denver
- Ave. Duration
- 2h 33m
- When
- Every day
- Estimated price
- $150–750
- Website
- alaskaair.com
Flights from Seattle-Tacoma International Airport to Denver
- Ave. Duration
- 2h 42m
- When
- Every day
- Estimated price
- $110–600
Flights from Paine Field County Airport to Denver via Phoenix
- Ave. Duration
- 5h 57m
- When
- Every day
- Estimated price
- $170–800
Flights from Portland International Airport to Denver
- Ave. Duration
- 2h 33m
- When
- Every day
- Estimated price
- $150–750
- Website
- delta.com
Flights from Seattle-Tacoma International Airport to Denver
- Ave. Duration
- 2h 50m
- When
- Every day
- Estimated price
- $110–600
Flights from Seattle-Tacoma International Airport to Colorado Springs Airport via Salt Lake City
- Ave. Duration
- 4h 59m
- When
- Every day
- Estimated price
- $85–420
Flights from Seattle-Tacoma International Airport to Colorado Springs Airport via Minneapolis
- Ave. Duration
- 8h 7m
- When
- Every day
- Estimated price
- $130–600
- Website
- flyfrontier.com
Flights from Seattle-Tacoma International Airport to Denver
- Ave. Duration
- 2h 53m
- When
- Every day
- Estimated price
- $110–600
Flights from Paine Field County Airport to Denver
- Ave. Duration
- 2h 53m
- When
- Monday and Friday
- Estimated price
- $120–600
Flights from Portland International Airport to Denver
- Ave. Duration
- 2h 28m
- When
- Tuesday, Thursday, Saturday, and Sunday
- Estimated price
- $150–750
- Website
- volaris.com
Flights from Seattle-Tacoma International Airport to Denver
- Ave. Duration
- 2h 53m
- When
- Every day
- Estimated price
- $95–600
Rome2Rio's guide to Amtrak
Contact Details
- Phone
- +1 800-872-7245
- Website
- amtrak.com
Train from Seattle to Sacramento
- Ave. Duration
- 20h 33m
- Frequency
- Once daily
- Estimated price
- $100–470
- Website
- https://www.amtrak.com/home.html
Train from Sacramento to Denver
- Ave. Duration
- 31h 4m
- Frequency
- Once daily
- Estimated price
- $120–1,300
- Website
- https://www.amtrak.com/home.html
Train from Seattle to Portland
- Ave. Duration
- 3h 25m
- Frequency
- Every 4 hours
- Estimated price
- $30–80
- Website
- https://www.amtrak.com/home.html
- Phone
- +1 303-299-6000
- Website
- rtd-denver.com
Bus from Union Station Gate B18 to Main St & 3rd Ave
- Ave. Duration
- 57 min
- Frequency
- Every 4 hours
- Estimated price
- $3
- Website
- https://www.rtd-denver.com/
- Adult
- $3
Bus from Union Station Gate B18 to S Main St & Delaware Ave
- Ave. Duration
- 53 min
- Frequency
- Every 4 hours
- Estimated price
- $3
- Website
- https://www.rtd-denver.com/
- Adult
- $3
- Phone
- +1 (855) 626-8585
- Website
- flixbus.com
Bus from Seattle Bus Station to Spokane Station
- Ave. Duration
- 5h 20m
- Frequency
- 4 times a day
- Estimated price
- $40–100
- Schedules at
- flixbus.com
Bus from Seattle Bus Station to Sacramento Bus Station
- Ave. Duration
- 16h 45m
- Frequency
- Twice daily
- Estimated price
- $85–180
- Schedules at
- flixbus.com
- Phone
- +1 800-366-6975
- info@busnws.com
- Website
- northwesternstagelines.com
Bus from Seattle Bus Station to Spokane Station
- Ave. Duration
- 7h 15m
- Frequency
- Twice daily
- Estimated price
- $40–95
- Schedules at
- northwesternstagelines.com
- Adults 12 and over
- $40–95
- Phone
- +1 208-656-8824
- info@saltlakeexpress.com
- Website
- saltlakeexpress.com
Bus from Seattle Bus Station to Spokane Station
- Ave. Duration
- 7h 15m
- Frequency
- Twice daily
- Estimated price
- $50–95
- Schedules at
- saltlakeexpress.com
- Phone
- +1-858-800-8898
- Website
- jeffersonlines.com
Bus from Spokane to Billings
- Ave. Duration
- 9h 25m
- Frequency
- 4 times a week
- Estimated price
- $50–190
- Book at
- https://www.jeffersonlines.com
- Phone
- +1-877-779-2999
- tony@expressarrow.com
- Website
- expressarrow.com
Bus from Billings, MT to Casper Amtrak Station
- Ave. Duration
- 7h
- Frequency
- Once a week
- Estimated price
- $95–120
- Website
- https://expressarrow.com
Bus from Casper Amtrak Station to Denver Union Station
- Ave. Duration
- 6h 5m
- Frequency
- 4 times a week
- Estimated price
- $80–95
- Website
- https://expressarrow.com
- Phone
- +1 800-923-1799
- contactus@omexusa.net
- Website
- omnibusexpress.com
Bus from Colorado Springs to 8th & Coffman PnR Longmont
- Ave. Duration
- 2h 5m
- Frequency
- Once daily
- Estimated price
- $45–60
- Schedules at
- omnibusexpress.com
Rome2Rio's guide to Greyhound USA
Contact Details
- Phone
- +1 214-849-8100
- ifsr@greyhound.com
- Website
- greyhound.com
Bus from Seattle Bus Station to Sacramento Bus Station
- Ave. Duration
- 15h 50m
- Frequency
- Twice daily
- Estimated price
- $85–150
- Website
- https://www.greyhound.com/
Bus from Sacramento Bus Station to Sparks Transit Center
- Ave. Duration
- 2h 40m
- Frequency
- 4 times a day
- Estimated price
- $19–70
- Website
- https://www.greyhound.com/
Bus from Sparks Transit Center to Denver Union Station
- Ave. Duration
- 20h 55m
- Frequency
- Twice daily
- Estimated price
- $65–170
- Website
- https://www.greyhound.com/
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
More Questions & Answers
There are 140+ hotels available in Longmont.























