There are 7 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)plane SEA - DEN
- Take the bus from Union Station Gate B16 to Coffman St & 4th Avebus
7h 18m$129–619Bus
- Take the bus from Seattle Bus Station to Spokane Stationbus
- Take the bus from Spokane to Billingsbus
- Take the bus from Billings, MT to Casper Amtrak Stationbus
- Take the bus from Casper 144 East A St to Denver Union Stationbus
- Take the bus from Union Station Gate B16 to Coffman St & 4th Avebus Ld1 / ...
32h 54m$285–550Train, bus
- Take the train from Seattle to Sacramentotrain
- Take the train from Sacramento to Denvertrain
- Take the bus from Union Station Gate B16 to S Main St & Delaware Avebus Ld1 / ...
2d 6h$231–1,004Drive 1,250 mi
- Drive from Seattle to Longmontcar 1,250 mi
20h 23m$229–330Fly Seattle-Tacoma International Airport to Colorado Springs Airport, bus
- Fly from Seattle-Tacoma International Airport (SEA) to Colorado Springs Airport (COS)plane SEA - COS
- Take the bus from Colorado Springs to 8th & Coffman PnR Longmontbus
11h 1m$135–480Train to Portland International Airport, fly to Denver, bus
- Take the train from Seattle to Portlandtrain
- Fly from Portland International Airport (PDX) to Denver (DEN)plane PDX - DEN
- Take the bus from Union Station Gate B16 to Coffman St & 4th Avebus
10h 37m$187–891Bus via Sacramento
- Take the bus from Seattle Bus Station to Sacramento Bus Stationbus
- Take the bus from Sacramento Bus Station to Sparks Transit Centerbus
- Take the bus from Sparks Transit Center to Denver Union Stationbus
- Take the bus from Union Station Gate B16 to Coffman St & 4th Avebus Ld1 / ...
43h 21m$171–403
Seattle to Longmont by bus and foot
Questions & Answers
The cheapest way to get from Seattle to Longmont is to bus via Sacramento which costs $170 - $410 and takes 43h 21m.
The fastest way to get from Seattle to Longmont is to fly and bus which takes 7h 18m and costs $120 - $650.
No, there is no direct bus from Seattle station to Longmont. However, there are services departing from Seattle Bus Station and arriving at Coffman St & 4th Ave via Spokane, Billings, MT, Casper 144 East A St and Union Station Gate B16. The journey, including transfers, takes approximately 32h 54m.
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 54m and costs $280 - $550.
It takes approximately 7h 18m 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 5:55 AM in Seattle and 6:55 AM in Longmont.
Yes, the driving distance between Seattle to Longmont is 1257 miles. It takes approximately 20h 23m 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 Coffman St & 4th Ave via Spokane, Billings, Billings, MT, Casper Amtrak Station, Casper 144 East A St, Denver Union Station, and Union Station Gate B16 in around 32h 54m.
- Website
- southwest.com
Flights from Seattle-Tacoma International Airport to Denver
- Ave. Duration
- 2h 38m
- When
- Every day
- Estimated price
- $110–600
Flights from Seattle-Tacoma International Airport to Colorado Springs Airport via Denver
- Ave. Duration
- 5h
- When
- Every day
- Estimated price
- $80–410
Flights from Seattle-Tacoma International Airport to Colorado Springs Airport via Las Vegas
- Ave. Duration
- 6h 56m
- When
- Every day
- Estimated price
- $100–470
Flights from Seattle-Tacoma International Airport to Colorado Springs Airport via Phoenix
- Ave. Duration
- 5h 27m
- When
- Saturday and Sunday
- Estimated price
- $110–500
Flights from Portland International Airport to Denver
- Ave. Duration
- 2h 25m
- When
- Every day
- Estimated price
- $140–800
- Website
- united.com
Flights from Seattle-Tacoma International Airport to Denver
- Ave. Duration
- 2h 48m
- When
- Every day
- Estimated price
- $110–600
Flights from Seattle-Tacoma International Airport to Colorado Springs Airport via Denver
- Ave. Duration
- 5h 5m
- When
- Every day
- Estimated price
- $80–410
Flights from Portland International Airport to Denver
- Ave. Duration
- 2h 33m
- When
- Every day
- Estimated price
- $140–800
- Website
- delta.com
Flights from Seattle-Tacoma International Airport to Denver
- Ave. Duration
- 2h 52m
- When
- Every day
- Estimated price
- $110–600
Flights from Seattle-Tacoma International Airport to Colorado Springs Airport via Salt Lake City
- Ave. Duration
- 6h 31m
- When
- Every day
- Estimated price
- $80–410
Flights from Portland International Airport to Denver via Salt Lake City
- Ave. Duration
- 4h 49m
- When
- Every day
- Estimated price
- $150–800
- Website
- alaskaair.com
Flights from Seattle-Tacoma International Airport to Denver
- Ave. Duration
- 2h 42m
- When
- Every day
- Estimated price
- $110–600
Flights from Portland International Airport to Denver
- Ave. Duration
- 2h 32m
- When
- Monday, Tuesday, Thursday, Friday, and Sunday
- Estimated price
- $140–800
- Website
- flyfrontier.com
Flights from Seattle-Tacoma International Airport to Denver
- Ave. Duration
- 2h 51m
- When
- Monday, Thursday, Friday, and Sunday
- Estimated price
- $110–600
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
- $100–260
- Website
- https://www.amtrak.com/home.html
Train from Sacramento to Denver
- Ave. Duration
- 31h 4m
- Frequency
- Once daily
- Estimated price
- $120–750
- Website
- https://www.amtrak.com/home.html
Train from Seattle to Portland
- Ave. Duration
- 3h 25m
- Frequency
- Every 4 hours
- Estimated price
- $30–75
- Website
- https://www.amtrak.com/home.html
- Phone
- +1 303-299-6000
- Website
- rtd-denver.com
Bus from Union Station Gate B16 to Coffman St & 4th Ave
- Ave. Duration
- 56 min
- Frequency
- Every 4 hours
- Estimated price
- $3
- Website
- https://www.rtd-denver.com/
- Adult
- $3
Bus from Union Station Gate B16 to S Main St & Delaware Ave
- Ave. Duration
- 52 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
- Twice daily
- Estimated price
- $40–90
- Schedules at
- flixbus.com
Bus from Seattle Bus Station to Sacramento Bus Station
- Ave. Duration
- 16h 45m
- Frequency
- Once daily
- Estimated price
- $85–230
- 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
- $100–120
- Schedules at
- northwesternstagelines.com
- Adults
- $100–120
- 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
- $100–130
- Website
- https://expressarrow.com
Bus from Casper 144 East A St to Denver Union Station
- Ave. Duration
- 6h 5m
- Frequency
- 4 times a week
- Estimated price
- $90–110
- 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
- Once daily
- Estimated price
- $85–150
- Website
- https://www.greyhound.com/
Bus from Sacramento Bus Station to Sparks Transit Center
- Ave. Duration
- 2h 40m
- Frequency
- Twice daily
- Estimated price
- $20–75
- Website
- https://www.greyhound.com/
Bus from Sparks Transit Center to Denver Union Station
- Ave. Duration
- 20h 55m
- Frequency
- Once daily
- Estimated price
- $60–100
- Website
- https://www.greyhound.com/
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