There are 5 ways to get from Portland to Mercer Island by train (Amtrak), bus (Flixbus), car, plane, tram, or bus
Select an option below to see step-by-step directions and to compare ticket prices and travel times in Rome2Rio's travel planner.
Train (Amtrak)
best- Take the train from Portland to Seattletrain Amtrak Cascades / ...
4h 25m$55–113Bus (Flixbus)
cheapest- Take the bus from Portland Curbside Bus Stop to Seattlebus FlixBus 2110 / ...
5h 26m$31–46Drive 175.6 mi
- Drive from Portland to Mercer Islandcar 175.6 mi
3h 7m$32–47Fly to King County International Airport, tram, line 204 bus
- Fly from Portland International Airport (PDX) to King County International Airport (BFI)plane PDX - BFI
- Take the tram from Int'l Dist/Chinatown to Mercer Islandtram
- Take the bus from N Mercer Way & 80th Ave SE - Bay 2 to 86th Ave SE & SE 42nd Stbus
3h 57m$302–402Fly to Seattle-Tacoma International Airport, tram
- Fly from Portland International Airport (PDX) to Seattle-Tacoma International Airport (SEA)plane PDX - SEA
- Take the tram from SeaTac/Airport to Int'l Dist/Chinatowntram
4h 23m$145–335
Portland to Mercer Island by train, tram, and bus (Amtrak)
Questions & Answers
The cheapest way to get from Portland to Mercer Island is to bus which costs $30 - $50 and takes 5h 26m.
The fastest way to get from Portland to Mercer Island is to drive which takes 3h 7m and costs $30 - $50.
No, there is no direct bus from Portland to Mercer Island. However, there are services departing from Portland Curbside Bus Stop and arriving at 86th Ave SE & SE 42nd St via N Mercer Way & 80th Ave SE - Bay 2. The journey, including transfers, takes approximately 5h 26m.
No, there is no direct train from Portland to Mercer Island. However, there are services departing from Portland and arriving at Mercer Island via Int'l Dist/Chinatown. The journey, including transfers, takes approximately 4h 25m.
The distance between Portland and Mercer Island is 185 miles. The road distance is 176.6 miles.
The best way to get from Portland to Mercer Island without a car is to train which takes 4h 25m and costs $55 - $120.
It takes approximately 4h 25m to get from Portland to Mercer Island, including transfers.
Portland to Mercer Island bus services, operated by Flixbus USA, depart from Portland Curbside Bus Stop station.
Portland to Mercer Island train services, operated by Amtrak, depart from Portland station.
The best way to get from Portland to Mercer Island is to train which takes 4h 25m and costs $55 - $120. Alternatively, you can bus, which costs $30 - $50 and takes 5h 26m.
What companies run services between Portland, OR, USA and Mercer Island, WA, USA?
Amtrak operates a train from Portland to Seattle every 4 hours. Tickets cost $45–110 and the journey takes 3h 25m. Alternatively, Flixbus USA operates a bus from Portland Curbside Bus Stop to Seattle twice daily. Tickets cost $25–45 and the journey takes 4h 5m.
Flights from Portland International Airport to King County International Airport
- Ave. Duration
- 49 min
- When
- Every day
- Estimated price
- $290–390
- Website
- alaskaair.com
Flights from Portland International Airport to Seattle-Tacoma International Airport
- Ave. Duration
- 1h 2m
- When
- Every day
- Estimated price
- $130–320
- Website
- delta.com
Flights from Portland International Airport to Seattle-Tacoma International Airport
- Ave. Duration
- 1h 11m
- When
- Every day
- Estimated price
- $27–210
Rome2Rio's guide to Amtrak
Contact DetailsContact Details
- Phone
- +1 800-872-7245
- Website
- Amtrak
Train from Portland to Seattle
- Ave. Duration
- 3h 25m
- Frequency
- Every 4 hours
- Estimated price
- $45–110
- Website
- Amtrak
- Phone
- +1 888-889-6368
- main@soundtransit.org
- Website
- Sound Transit
Tram from Int'l Dist/Chinatown to Mercer Island
- Ave. Duration
- 10 min
- Frequency
- Every 15 minutes
- Estimated price
- $3
- Website
- Sound Transit
- Adult
- $3
Tram from SeaTac/Airport to Int'l Dist/Chinatown
- Ave. Duration
- 34 min
- Frequency
- Every 15 minutes
- Estimated price
- $3
- Website
- Sound Transit
- Adult
- $3
- Phone
- +1 (855) 626-8585
- Website
- Flixbus USA
Bus from Portland Curbside Bus Stop to Seattle
- Ave. Duration
- 4h 5m
- Frequency
- Twice daily
- Estimated price
- $25–45
- Schedules at
- Flixbus USA
- Phone
- +1 206-553-3000
- Website
- King County Metro
Bus from N Mercer Way & 80th Ave SE - Bay 2 to 86th Ave SE & SE 42nd St
- Ave. Duration
- 7 min
- Frequency
- Hourly
- Estimated price
- $3
- Website
- King County Metro
- Adult
- $3
Want to know more about travelling around United States
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More Questions & Answers
Portland to Mercer Island bus services, operated by Flixbus USA, arrive at Seattle station.
Portland to Mercer Island train services, operated by Amtrak, arrive at Seattle station.
Yes, the driving distance between Portland to Mercer Island is 177 miles. It takes approximately 3h 7m to drive from Portland to Mercer Island.
There are 1456+ hotels available in Mercer Island.















