Seattle to Portland (SEA–PDX) — Airlines, Schedules & Connections

SEA Airport Page →
129 mi airlines charter/private 360/wk
On-time Some delays Frequent delays
Flight Schedule 117 flights Verified 12m ago
Also flown by charter / private operators.
Nonstop Charter / private 1-Stop 2-Stop Hide separate tickets Hide overnight Hide codeshares
  Flight Airline AC Dep Arr Dur OTP Sched  
✈ Nonstop
AS2432
AS Alaska
E75
6:42 AM
PDT
7:37 AM
PDT
0h 55m
27%
M T W T F S S
Prices
QR2184
QR Qatar
E75
6:42 AM
PDT
7:37 AM
PDT
0h 55m
34%
M T W T F S S
Prices
QR3376
QR Qatar
E75
6:42 AM
PDT
7:37 AM
PDT
0h 55m
34%
M T W T F S S
Prices
DL3953+2
DL Delta
E7W
7:30 AM
PDT TA
8:39 AM
PDT
1h 9m
31%
M T W T F S S
Prices
AS3132
AS Alaska
E75
8:45 AM
PDT
9:49 AM
PDT
1h 4m
27%
M T W T F S S
Prices
DL3818+5
DL Delta
E7W
9:30 AM
PDT TB
10:39 AM
PDT
1h 9m
31%
M T W T F S S
Prices
AS3090
AS Alaska
E75
10:14 AM
PDT
11:21 AM
PDT
1h 7m
27%
M T W T F S S
Prices
DL3802+6
DL Delta
E7W
10:35 AM
PDT TA
11:42 AM
PDT
1h 7m
31%
M T W T F S S
Prices
AS2181
AS Alaska
E75
12:05 PM
PDT
1:06 PM
PDT
1h 1m
27%
M T W T F S S
Prices
DL4062+3
DL Delta
E75L
1:35 PM
PDT TB
2:46 PM
PDT
1h 11m
31%
M T W T F S S
Prices
KE3071cs
KE Korean
E7W
1:40 PM
PDT TA
2:48 PM
PDT
1h 8m
36%
M T W T F S S
Prices
AS3204+1
AS Alaska
E75
1:45 PM
PDT
2:48 PM
PDT
1h 3m
27%
M T W T F S S
Prices
AS686+1
AS Alaska
73H
3:55 PM
PDT
4:55 PM
PDT
1h
27%
M T W T F S S
Prices
BA2995cs
BA British
B39M
3:55 PM
PDT
4:55 PM
PDT
1h
46%
M T W T F S S
Prices
KE6006+2
KE Korean
E75L
3:57 PM
PDT
4:52 PM
PDT
0h 55m
36%
M T W T F S S
Prices
QR3387
QR Qatar
73J
3:59 PM
PDT
4:59 PM
PDT
1h
34%
M T W T F S S
Prices
DL3918+6
DL Delta
E7W
4:01 PM
PDT
5:09 PM
PDT
1h 8m
31%
M T W T F S S
Prices
AM3206
AM Aeromexi
E7W
4:06 PM
PDT
5:12 PM
PDT
1h 6m
52%
M T W T F S S
Prices
SK3678cs
SK S
E7W
4:10 PM
PDT TB
5:11 PM
PDT
1h 1m
46%
M T W T F S S
Prices
KE3097cs
KE Korean
E75L
4:10 PM
PDT TA
5:11 PM
PDT
1h 1m
36%
M T W T F S S
Prices
VS1923cs
VS Virgin Atlantic
E7W
4:10 PM
PDT
5:11 PM
PDT
1h 1m
57%
M T W T F S S
Prices
BA2989cs
BA British
E75
5:40 PM
PDT
6:43 PM
PDT
1h 3m
46%
M T W T F S S
Prices
DE5044+1
DE Condor
E75
5:40 PM
PDT
6:36 PM
PDT
0h 56m
83%
M T W T F S S
Prices
KE6007+1
KE Korean
E75
5:45 PM
PDT
6:40 PM
PDT
0h 55m
36%
M T W T F S S
Prices
QR3386
QR Qatar
E75
5:59 PM
PDT
6:56 PM
PDT
0h 57m
34%
M T W T F S S
Prices
AY3913cs
AY Finnair
E75
5:59 PM
PDT
6:56 PM
PDT
0h 57m
17%
M T W T F S S
Prices
KL6271
KL KLM
E7W
6:05 PM
PDT
7:05 PM
PDT
1h
M T W T F S S
Prices
VS1937cs
VS Virgin Atlantic
E75L
6:25 PM
PDT TB
7:26 PM
PDT
1h 1m
57%
M T W T F S S
Prices
SK3922cs
SK S
E7W
6:25 PM
PDT TA
7:26 PM
PDT
1h 1m
46%
M T W T F S S
Prices
JX7020cs
JX STARLUX
7M9
6:30 PM
PDT
7:34 PM
PDT
1h 4m
M T W T F S S
Prices
DE5046+2
DE Condor
7M9
6:30 PM
PDT
7:34 PM
PDT
1h 4m
83%
M T W T F S S
Prices
DL3923
DL Delta
E7W
6:55 PM
PDT TB
8:02 PM
PDT
1h 7m
31%
M T W T F S S
Prices
FI7635+2
FI Icelandair
E75
7:18 PM
PDT
8:17 PM
PDT
0h 59m
92%
M T W T F S S
Prices
AY3943cs
AY Finnair
E75
7:22 PM
PDT
8:17 PM
PDT
0h 55m
17%
M T W T F S S
Prices
QR3390
QR Qatar
E75
7:22 PM
PDT
8:17 PM
PDT
0h 55m
34%
M T W T F S S
Prices
AS2372+4
AS Alaska
E75L
7:22 PM
PDT
8:17 PM
PDT
0h 55m
27%
M T W T F S S
Prices
AS2107+2
AS Alaska
E75L
7:25 PM
PDT
8:21 PM
PDT
0h 56m
27%
M T W T F S S
Prices
FI7633+1
FI Icelandair
E75
7:25 PM
PDT
8:21 PM
PDT
0h 56m
92%
M T W T F S S
Prices
DE5042+2
DE Condor
E75
7:25 PM
PDT
8:21 PM
PDT
0h 56m
83%
M T W T F S S
Prices
QR3363cs
QR Qatar
E75
7:25 PM
PDT
8:21 PM
PDT
0h 56m
34%
M T W T F S S
Prices
AS2302+1
AS Alaska
E75
7:35 PM
PDT
8:30 PM
PDT
0h 55m
27%
M T W T F S S
Prices
AS2387+1
AS Alaska
E75
8:25 PM
PDT
9:22 PM
PDT
0h 57m
27%
M T W T F S S
Prices
BA2991cs
BA British
E75
8:25 PM
PDT
9:22 PM
PDT
0h 57m
46%
M T W T F S S
Prices
QR3364
QR Qatar
E75
8:25 PM
PDT
9:22 PM
PDT
0h 57m
34%
M T W T F S S
Prices
JX7018+2
JX STARLUX
73J
8:30 PM
PDT
9:28 PM
PDT
0h 58m
M T W T F S S
Prices
KE6009+1
KE Korean
73H
8:42 PM
PDT
9:38 PM
PDT
0h 56m
36%
M T W T F S S
Prices
DL3913+7
DL Delta
E7W
8:59 PM
PDT TB
10:02 PM
PDT
1h 3m
31%
M T W T F S S
Prices
AM4168+2
AM Aeromexi
221
9:20 PM
PDT TA
10:21 PM
PDT
1h 1m
52%
M T W T F S S
Prices
BA2993cs
BA British
73H
9:28 PM
PDT
10:25 PM
PDT
0h 57m
46%
M T W T F S S
Prices
AS498+3
AS Alaska
73H
9:28 PM
PDT
10:25 PM
PDT
0h 57m
27%
M T W T F S S
Prices
KE6011+1
KE Korean
E75
9:42 PM
PDT
10:38 PM
PDT
0h 56m
36%
M T W T F S S
Prices
JX7022+2
JX STARLUX
73J
9:51 PM
PDT
10:53 PM
PDT
1h 2m
M T W T F S S
Prices
AS496
AS Alaska
7M9
10:15 PM
PDT
11:12 PM
PDT
0h 57m
27%
M T W T F S S
Prices
QR2024
QR Qatar
7M9
10:15 PM
PDT
11:12 PM
PDT
0h 57m
34%
M T W T F S S
Prices
WS7759
WS WestJet
E7W
10:50 PM
PDT
11:54 PM
PDT
1h 4m
M T W T F S S
Prices
WS7525
WS WestJet
E7W
10:50 PM
PDT
11:54 PM
PDT
1h 4m
M T W T F S S
Prices
DL4472
DL Delta
E7W
10:50 PM
PDT TA
11:54 PM
PDT
1h 4m
31%
M T W T F S S
Prices
WS7934
WS WestJet
E7W
10:50 PM
PDT
11:56 PM
PDT
1h 6m
M T W T F S S
Prices
AS1457
AS Alaska
73J
11:00 PM
PDT
11:59 PM
PDT
0h 59m
27%
M T W T F S S
Prices
AS2136
AS Alaska
E75
11:26 PM
PDT
12:22 AM+1
PDT
0h 56m
27%
M T W T F S S
Prices
QR2199
QR Qatar
E75
5:00 AM
PDT
5:53 AM
PDT
0h 53m
47%
M T W T F S S
Prices
AS499+5
AS Alaska
738
5:00 AM
PDT
6:02 AM
PDT
1h 2m
43%
M T W T F S S
Prices
AS2431
AS Alaska
E75
5:00 AM
PDT
5:53 AM
PDT
0h 53m
43%
M T W T F S S
Prices
DL4008
DL Delta
E7W
5:30 AM
PDT
6:37 AM
PDT
1h 7m
69%
M T W T F S S
Prices
KE6010cs
KE Korean
B39M
6:00 AM
PDT
7:02 AM
PDT
1h 2m
30%
M T W T F S S
Prices
QR8862cs
QR Qatar
E75
6:00 AM
PDT
6:53 AM
PDT
0h 53m
47%
M T W T F S S
Prices
KE6008+2
KE Korean
E75L
7:18 AM
PDT
8:18 AM
PDT
1h
30%
M T W T F S S
Prices
QR2147
QR Qatar
E75
7:19 AM
PDT
8:20 AM
PDT
1h 1m
47%
M T W T F S S
Prices
AS2420
AS Alaska
E75
7:19 AM
PDT
8:20 AM
PDT
1h 1m
43%
M T W T F S S
Prices
WS6847cs
WS WestJet
E7W
7:20 AM
PDT
8:34 AM
PDT
1h 14m
M T W T F S S
Prices
DL4471+2
DL Delta
E75L
7:20 AM
PDT TD
8:34 AM
PDT
1h 14m
69%
M T W T F S S
Prices
AM4860cs
AM Aeromexi
E75L
7:20 AM
PDT TD
8:34 AM
PDT
1h 14m
73%
M T W T F S S
Prices
AS2108
AS Alaska
E75
8:19 AM
PDT
9:14 AM
PDT
0h 55m
43%
M T W T F S S
Prices
QR2145+1
QR Qatar
E75
8:44 AM
PDT
9:40 AM
PDT
0h 56m
47%
M T W T F S S
Prices
KE6012+2
KE Korean
B39M
9:00 AM
PDT
10:06 AM
PDT
1h 6m
30%
M T W T F S S
Prices
QR2187
QR Qatar
73J
9:19 AM
PDT
10:21 AM
PDT
1h 2m
47%
M T W T F S S
Prices
BA2992cs
BA British
73J
9:19 AM
PDT
10:21 AM
PDT
1h 2m
21%
M T W T F S S
Prices
AS427+1
AS Alaska
73J
9:19 AM
PDT
10:21 AM
PDT
1h 2m
43%
M T W T F S S
Prices
KE3102cs
KE Korean
E75L
9:20 AM
PDT TD
10:38 AM
PDT
1h 18m
30%
M T W T F S S
Prices
QR2950+1
QR Qatar
E75
10:35 AM
PDT
11:43 AM
PDT
1h 8m
47%
M T W T F S S
Prices
AS3431+1
AS Alaska
E75
10:35 AM
PDT
11:43 AM
PDT
1h 8m
43%
M T W T F S S
Prices
BA2988cs
BA British
E75
10:35 AM
PDT
11:43 AM
PDT
1h 8m
21%
M T W T F S S
Prices
KE3072cs
KE Korean
E75L
10:42 AM
PDT TD
11:49 AM
PDT
1h 7m
30%
M T W T F S S
Prices
QR2144+1
QR Qatar
E75
10:45 AM
PDT
11:59 AM
PDT
1h 14m
47%
M T W T F S S
Prices
DL3953+2
DL Delta
E75L
11:00 AM
PDT
11:57 AM
PDT
0h 57m
69%
M T W T F S S
Prices
SK3883+1
SK S
E7W
11:20 AM
PDT TD
12:31 PM
PDT
1h 11m
M T W T F S S
Prices
AM4488
AM Aeromexi
E7W
11:20 AM
PDT
12:36 PM
PDT
1h 16m
73%
M T W T F S S
Prices
DL3818+5
DL Delta
E7W
11:20 AM
PDT TD
12:36 PM
PDT
1h 16m
69%
M T W T F S S
Prices
AF2169cs
AF Air France
E7W
11:20 AM
PDT TD
12:36 PM
PDT
1h 16m
M T W T F S S
Prices
FI7632+3
FI Icelandair
E75
11:59 AM
PDT
12:55 PM
PDT
0h 56m
M T W T F S S
Prices
AS3078
AS Alaska
E75
12:03 PM
PDT
1:03 PM
PDT
1h
43%
M T W T F S S
Prices
QR2143
QR Qatar
E75
12:03 PM
PDT
1:03 PM
PDT
1h
47%
M T W T F S S
Prices
SK3677cs
SK S
E7W
12:20 PM
PDT
1:25 PM
PDT
1h 5m
M T W T F S S
Prices
DL3802+6
DL Delta
E7W
12:23 PM
PDT
1:34 PM
PDT
1h 11m
69%
M T W T F S S
Prices
AS2205+1
AS Alaska
E75L
1:48 PM
PDT
2:43 PM
PDT
0h 55m
43%
M T W T F S S
Prices
QR2175
QR Qatar
E75
1:48 PM
PDT
2:43 PM
PDT
0h 55m
47%
M T W T F S S
Prices
AY3942cs
AY Finnair
E75
1:48 PM
PDT
2:43 PM
PDT
0h 55m
M T W T F S S
Prices
DE5045+2
DE Condor
73J
1:52 PM
PDT
2:55 PM
PDT
1h 3m
M T W T F S S
Prices
DE5041+2
DE Condor
E75
2:45 PM
PDT
3:44 PM
PDT
0h 59m
M T W T F S S
Prices
FI7636+1
FI Icelandair
E75
2:45 PM
PDT
3:44 PM
PDT
0h 59m
M T W T F S S
Prices
DL4062+3
DL Delta
E75L
3:26 PM
PDT TD
4:41 PM
PDT
1h 15m
69%
M T W T F S S
Prices
AY3912cs
AY Finnair
E75
3:30 PM
PDT
4:30 PM
PDT
1h
M T W T F S S
Prices
BA2994cs
BA British
E75
3:30 PM
PDT
4:30 PM
PDT
1h
21%
M T W T F S S
Prices
AS3408+2
AS Alaska
E75
3:30 PM
PDT
4:30 PM
PDT
1h
43%
M T W T F S S
Prices
JX7023cs
JX STARLUX
E75
5:30 PM
PDT
6:36 PM
PDT
1h 6m
M T W T F S S
Prices
BA2990cs
BA British
73J
5:30 PM
PDT
6:33 PM
PDT
1h 3m
21%
M T W T F S S
Prices
AS430+1
AS Alaska
73J
5:30 PM
PDT
6:33 PM
PDT
1h 3m
43%
M T W T F S S
Prices
DL3918+6
DL Delta
E7W
5:50 PM
PDT
7:05 PM
PDT
1h 15m
69%
M T W T F S S
Prices
WS7015
WS WestJet
E7W
5:51 PM
PDT
7:05 PM
PDT
1h 14m
M T W T F S S
Prices
VS1922cs
VS Virgin Atlantic
E75L
5:51 PM
PDT TD
7:05 PM
PDT
1h 14m
M T W T F S S
Prices
JX7021+3
JX STARLUX
E75
7:18 PM
PDT
8:14 PM
PDT
0h 56m
M T W T F S S
Prices
AS3121+2
AS Alaska
E75
7:25 PM
PDT
8:26 PM
PDT
1h 1m
43%
M T W T F S S
Prices
AS2313
AS Alaska
E75
7:38 PM
PDT
8:33 PM
PDT
0h 55m
43%
M T W T F S S
Prices
FI7634+2
FI Icelandair
E75L
8:30 PM
PDT
9:26 PM
PDT
0h 56m
M T W T F S S
Prices
DL3923
DL Delta
E7W
8:42 PM
PDT TD
10:00 PM
PDT
1h 18m
69%
M T W T F S S
Prices
JX7019+2
JX STARLUX
E75L
9:30 PM
PDT
10:26 PM
PDT
0h 56m
M T W T F S S
Prices
AS2421
AS Alaska
E75L
9:30 PM
PDT
10:27 PM
PDT
0h 57m
43%
M T W T F S S
Prices

No flights match your filters.

No scheduled airline flights on this route — it's flown by charter / private operators (). No nonstop flights on this route. connecting options below.

✦ 1-Stop connections via 10 hubs
RDM Redmond 3h 4m AFASAY A8ASEM Redmond (RDM) to Portland flights
YVR Vancouver 3h 6m ACAFAM ASCXKE Vancouver (YVR) to Portland flights
PSC Pasco 3h 13m AMASDL AS Pasco (PSC) to Portland flights
GEG Spokane 3h 13m AFAMAS ASBA Spokane (GEG) to Portland flights
BOI Boise 3h 45m AMASAY ASBA Boise (BOI) to Portland flights
SMF Sacramento 4h 11m AFASAY ASBAWN Sacramento (SMF) to Portland flights
MFR Medford 4h 25m AMASAY A8ASBA Medford (MFR) to Portland flights
RNO Reno 4h 26m ASAYDE AS Reno (RNO) to Portland flights
MSO Missoula 4h 32m ASAYFI AS Missoula (MSO) to Portland flights
OAK Oakland 4h 33m ASFIJL ASLXJWN Oakland (OAK) to Portland flights
1-STOP More options, longer trips
2-STOP Loading... Reach the hardest destinations
Seattle to Portland
5 carriers, 360 flights/week nonstop.
5 Airlines 129 mi 1h nonstop

SEA–PDX is served by 5 airlines with nonstop service. Alaska Airlines, Delta Air Lines and Sun Country Airlines lead the route. The flight covers 129 miles in approximately 1h. Beyond nonstop, 1-stop connecting options are also available.

Airline Landscape

All carriers operating nonstop SEA–PDX service, compared side by side.
Airline Freq/wk Aircraft Duration Dep OTP Alliance Codeshares
AS Alaska Airlines Also: AY, BA, DE, FI, HA, JX, KE, QR 86 73H, 73J, 7M9, E75, E75L 0h55-1h07 89% Oneworld AY, BA, DE, FI, HA, JX, KE, QR
DL Delta Air Lines Also: AF, AM, KE, KL, SK, VS, WS 55 E75L, E7W 1h03-1h11 89% SkyTeam AF, AM, KE, KL, SK, VS, WS
SY Sun Country Airlines 1 89%
EM Empire Airlines Inc. 0 89%
OO SkyWest Airlines 0 89%
Aircraft on this route
221 Airbus A220-100 – AM
73H Boeing 737-800 (Winglets) – AS, BA, KE
73J Boeing 737-900ER – AS, JX, QR
7M9 Boeing 737 MAX 9 – AS, DE, JX, QR
B39M Boeing 737 MAX 9 – BA
E75 Embraer E175 – AS, AY, BA, DE, FI, KE, QR
E75L Embraer E175 Long Wing – AS, DL, KE, VS
E7W Embraer E175 – AM, DL, KE, KL, SK, VS, WS
Alliance coverage
Oneworld: AS (86 flights/wk, 61%)
SkyTeam: DL (55 flights/wk, 39%)
Unaffiliated: EM + OO + SY (1 flights/wk, 1%)
OTP based on airport-level delay snapshots. Duration ranges reflect seasonal/directional variation.

Weekly Schedule Pattern

Nonstop flight frequency by day of week, SEA to PDX direction.
Mon
51
flights
Tue
53
flights
Wed
48
flights
Thu
49
flights
Fri
53
flights
Sat
51
flights
Sun
53
flights
Departure time distribution
12 AM6 AM12 PM6 PM12 AM
Morning departures
Afternoon/evening departures
60
Nonstop flights
360
Outbound / wk
370
Return / wk

Connection Landscape

Beyond nonstop. 1-stop and 2-stop options for SEA to PDX.
1-STOP
One-Stop Connections
88
Hubs
~3h
Fastest
~29h
Longest
Verified with published schedule alignment and minimum connection time.
2-STOP
Two-Stop Connections
3,065
Candidates
Two-stop connections loaded in the connections tab above.
Connections computed from published schedules with minimum connection time verification. Use the interactive explorer above the fold to filter by airline, tier, and layover time.

On-Time Performance

What to expect at each end of your journey.
Outbound
SEA → PDX
89%
Generally reliable. Most flights run on time.
Departing
89%
Arriving
100%
Return
PDX → SEA
100%
Generally reliable. Most flights run on time.
Departing
100%
Arriving
100%
OTP = percentage of flights arriving within 15 min of schedule. Based on airport-level delay snapshots. SEA delays → PDX delays →

Other ways to reach Portland from Seattle

Nearby airports with service to Portland International Airport.
Metric SEA→PDX BFI→PDX TIW→PDX
Distance from SEA 5 mi 18 mi
Nonstop airlines 5 10 2
Weekly flights 360 2
Flight time 1h 0h 42m 0h 33m
Departure OTP 89%
Airports within 200 miles of SEA with service to Portland International Airport.

Travel Essentials

Practical planning for this route.
Time Difference
0h
Portland is 0 hours the same as Seattle.
SEA: PDT · PDX: PDT

When it's 6:00 PM in Seattle, it's 6:00 PM in Portland.
Distance & Flight Time
129 mi / 208 km
Nonstop flight time is approximately 1h 0m gate to gate.
Getting to SEA

Link Light Rail runs from downtown Seattle (Westlake station) to the airport in 38 minutes ($3.50 peak). Trains run every 6–12 minutes during peak hours from 5am to 1am. Ride-shares run $30–50 from downtown; SR-99 and I-5 can be heavily congested southbound during afternoon rush (3–7pm).

Sound Transit 574 express bus serves Tacoma ($2.50–4). Sounder commuter rail connects Tacoma to the airport area via a shuttle.

SEA–PDX Quick Facts

Key statistics for the Seattle to Portland route.
Route details
Distance129 mi / 208 km
Flight time1h
Time difference0 hours
Airlines (nonstop)5
Weekly flights360 out / 370 return
1-stop connectionsAvailable
Origin: SEA
IATA / ICAOSEA / KSEA
TimezoneAmerica/Los_Angeles
Passengers/yr50.8M
Elevation433 ft / 132 m
Destination: PDX
IATA / ICAOPDX / KPDX
TimezoneAmerica/Los_Angeles
Passengers/yr17.3M
Elevation31 ft / 9 m

Frequently Asked Questions

Common questions about SEA to PDX flights.
Nonstop flights from Seattle–Tacoma International Airport to Portland International Airport take about 1h gate to gate. The route covers 129 miles.
5 airlines operate flights from SEA to PDX: Alaska Airlines, Delta Air Lines, Sun Country Airlines, Empire Airlines Inc., and others.
This route has frequent daily service. Check the schedule above for departure days and times in each direction.
Yes, 1-stop connections are available, ranked by layover time. Common connecting points include Roberts Field, Vancouver and Tri Cities.
Yes, return flights from PDX to SEA are available. Use the direction toggle at the top to view the return schedule.
Nearby alternatives include BFI, TIW and PAE. See the Alternatives section for a full comparison.
Click the 'Search Flights' button to check availability and prices on Google Flights. You can also compare airlines and schedules on this page to find the best option.
See the On-Time Performance section for the latest delay data at both airports. This shows departure and arrival reliability to help you plan.
Route data is updated regularly from official airline schedules. On-time performance data comes from recent airport delay snapshots.
Block time is 50 minutes to 1 hour 5 minutes for the 130-mile hop. Actual air time is often under 30 minutes. The flight barely reaches cruising altitude before beginning descent. You are airborne just long enough for the crew to run a drink service.
The drive on I-5 takes 2 hours 45 minutes to 3 hours 30 minutes depending on traffic. When you factor in airport time on both ends, door-to-door travel by air is often 3 to 4 hours. The flight makes sense mainly for connecting passengers routing through SEA, not for point-to-point travel. Amtrak Cascades runs the same corridor in about 3 hours 30 minutes with a city-center-to-city-center advantage.
Alaska Airlines operates 6 to 10 daily nonstops as part of its Seattle hub operation. Delta runs 3 to 5 daily departures connecting to its SEA focus city. United and American each offer 1 to 2 daily frequencies. Alaska uses E175 regional jets and occasionally Bombardier Q400 turboprops. Total daily nonstop departures can exceed 15 in each direction.
Amtrak Cascades runs 4 to 5 daily roundtrips between Seattle King Street Station and Portland Union Station. Travel time is 3 hours 30 minutes to 4 hours. The train runs along the Puget Sound waterfront south of Seattle with water views. Fares start around $29 one way. For city-center trips without checked luggage, the train is competitive with flying when you include airport time.

Seattle to Portland: Pacific Northwest Shuttle

SEA-PDX covers 130 miles in under an hour of flight time. Alaska Airlines dominates with 6 to 10 daily nonstops from its Seattle hub. Delta, United, and American add frequencies that push total daily departures above 15 in each direction. Most of this traffic is connecting. Passengers originating in cities without direct PDX service route through SEA to reach Portland. Point-to-point travelers between the two cities often prefer Amtrak Cascades or driving. The I-5 corridor drive takes under 3 hours without traffic. The route uses regional jet and turboprop equipment almost exclusively, with E175s being the most common aircraft type.

Ground Alternatives and Market Context

This is one of the shortest scheduled airline routes in the western United States. Amtrak Cascades offers 4 to 5 daily roundtrips between the two city centers, taking about 3.5 hours. FlixBus and BoltBus run express coaches at lower price points. The air route exists primarily because both Seattle and Portland are airline hubs or focus cities. Alaska, Delta, and others need to shuttle passengers between the two networks. Portland's airport (PDX) is consistently rated among the best in the US for passenger experience, with a single-terminal layout and MAX light rail service to downtown for $2.50. Seattle-Tacoma's Link light rail connects to downtown Seattle in about 40 minutes for $3.00.