There are 6 ways to get from Casper to SeaTac by plane, bus (Flixbus), car, bus, train, or bus (Greyhound)
Select an option below to see step-by-step directions and to compare ticket prices and travel times in Rome2Rio's travel planner.
Fly
best- Fly from Casper (CPR) to Seattle-Tacoma International Airport (SEA)plane CPR - SEA
5h 48m$123–565Bus via Buffalo
- Take the bus from Casper 144 East A St to Buffalo, WYbus
- Take the bus from Buffalo to Billingsbus
- Take the bus from Billings, MT to Spokane Stationbus
- Take the bus from Spokane Station to Seattle Tacoma Intl Airportbus
23h 38m$251–371Drive 1,097.5 mi
- Drive from Casper to SeaTaccar 1,097.5 mi
16h 52m$201–290Bus
- Take the bus from Casper Amtrak Station to Billings, MTbus
- Take the bus from Billings, MT to Spokane Stationbus
- Take the bus from Spokane Station to Seattle Tacoma Intl Airportbus
25h$262–372Bus, train
- Take the bus from Casper Amtrak Station to Billings, MTbus
- Take the bus from Billings, MT to Spokane Stationbus
- Take the train from Spokane to Seattletrain
28h 3m$320–510Bus #2
- Take the bus from Casper 144 East A St to Denver Union Stationbus Buffalo
- Take the bus from Denver Union Station to Seattle Bus Stationbus Greyhound US0550
34h 55m$313–550
Casper to SeaTac by bus and foot
Questions & Answers
The cheapest way to get from Casper to SeaTac is to drive which costs $200 - $290 and takes 16h 52m.
The fastest way to get from Casper to SeaTac is to fly which takes 5h 48m and costs $120 - $600.
No, there is no direct bus from Casper to SeaTac. However, there are services departing from Casper 144 East A St and arriving at Seattle Tacoma Intl Airport via Buffalo, Billings, MT and Spokane Station. The journey, including transfers, takes approximately 23h 38m.
The distance between Casper and SeaTac is 847 miles. The road distance is 1103.9 miles.
The best way to get from Casper to SeaTac without a car is to bus via Buffalo which takes 23h 38m and costs $250 - $380.
It takes approximately 5h 48m to get from Casper to SeaTac, including transfers.
Casper to SeaTac bus services, operated by Express Arrow, depart from Casper 144 East A St station.
The best way to get from Casper to SeaTac is to fly which takes 5h 48m and costs $120 - $600. Alternatively, you can bus via Buffalo, which costs $250 - $380 and takes 23h 38m.
Casper to SeaTac bus services, operated by Express Arrow, arrive at Buffalo, WY station.
SeaTac is 1h behind Casper. It is currently 6:32 PM in Casper and 5:32 PM in SeaTac.
What companies run services between Casper, WY, USA and SeaTac, WA, USA?
United Airlines flies from Casper (CPR) to Seattle-Tacoma International Airport (SEA) 4 times a day. Alternatively, you can take a bus from Casper 144 East A St to Seattle Tacoma Intl Airport via Buffalo, WY, Buffalo, Billings, Billings, MT, and Spokane Station in around 23h 38m.
- Website
- united.com
Flights from Casper to Seattle-Tacoma International Airport via Denver
- Ave. Duration
- 5h 56m
- When
- Every day
- Estimated price
- $110–550
Rome2Rio's guide to Amtrak
Contact Details
- Phone
- +1 800-872-7245
- Website
- amtrak.com
Train from Spokane to Seattle
- Ave. Duration
- 8h 10m
- Frequency
- Once daily
- Estimated price
- $90–200
- Website
- https://www.amtrak.com/home.html
- Phone
- +1-877-779-2999
- tony@expressarrow.com
- Website
- expressarrow.com
Bus from Casper 144 East A St to Buffalo, WY
- Ave. Duration
- 2h
- Frequency
- 4 times a week
- Estimated price
- $50–65
- Website
- https://expressarrow.com
Bus from Casper Amtrak Station to Billings, MT
- Ave. Duration
- 7h 15m
- 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
- +1-858-800-8898
- Website
- jeffersonlines.com
Bus from Buffalo to Billings
- Ave. Duration
- 2h 40m
- Frequency
- Once daily
- Estimated price
- $45–65
- Book at
- https://www.jeffersonlines.com
- Adult
- $45–65
Bus from Billings, MT to Spokane Station
- Ave. Duration
- 10h
- Frequency
- Twice daily
- Estimated price
- $120–180
- Book at
- https://www.jeffersonlines.com
- Adult
- $120–180
- Phone
- +1 (855) 626-8585
- Website
- https://www.flixbus.com
Bus from Spokane Station to Seattle Tacoma Intl Airport
- Ave. Duration
- 5h 45m
- Frequency
- Once daily
- Estimated price
- $35–65
- Schedules at
- flixbus.com
Rome2Rio's guide to Greyhound USA
Contact Details
- Phone
- +1 214-849-8100
- ifsr@greyhound.com
- Website
- greyhound.com
Bus from Denver Union Station to Seattle Bus Station
- Ave. Duration
- 27h 15m
- Frequency
- Once daily
- Estimated price
- $220–440
- Website
- https://www.greyhound.com/
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More Questions & Answers
Yes, the driving distance between Casper to SeaTac is 1104 miles. It takes approximately 16h 52m to drive from Casper to SeaTac.
There are 995+ hotels available in SeaTac.












