Alaska Airlines Seattle to Portland Flights

Cheapflightsplus.com will find cheap Alaska Airlines flights from Seattle to Portland. Compare airline ticket prices and book air tickets starting from $236 from trusted online travel agencies, web sites and directly from airlines. Check flights schedule of Alaska Airlines, arrivals and departure details below.

Find Cheap Airfare Seattle (WA) — Portland (ME) by Alaska Airlines

To find cheap tickets choose a day of your departure with attractive price on the graph below and click «Find flights». For round trip flights please click «Check prices for return flight». The cheapest airfare is in june: one-way - $236, two-way – $405.
Direct flights
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Below is a detailed 2025 flight schedule for today, tomorrow and all other days. It may vary depending on season and a day of the week of your desired trip. We recommend booking your itinerary at least 2 weeks prior your travel to get the best price and availability by the airline.
Departure Arrival Flight Details Flight Time Price
10:05 am — 11:27 pm
10:05 am — 6:29 pm AS398 Alaska Airlines
Seattle — Newark
3h 30m stop
9:59 pm — 11:27 pm UA1232 United Airlines
Newark — Portland
10h 22m
including layover
Find flight
from$454
10:10 am — 11:14 pm
10:10 am — 6:29 pm AS477 Alaska Airlines
Seattle — Newark
3h 16m stop
9:45 pm — 11:14 pm UA2127 United Airlines
Newark — Portland
10h 4m
including layover
Find flight
from$450
11:30 pm — 11:59 pm
+1 day
11:30 pm — 7:27 am AS367 Alaska Airlines
Seattle — Washington D.C.
14h 47m stop
10:14 pm — 11:59 pm UA3674 United Airlines
Washington D.C. — Portland
21h 29m
including layover
Find flight
from$367
11:30 pm — 5:43 pm
+1 day
11:30 pm — 7:36 am AS307 Alaska Airlines
Seattle — Washington D.C.
8h 19m stop
3:55 pm — 5:43 pm UA3715 United Airlines
Washington D.C. — Portland
15h 13m
including layover
Find flight
from$369
4:19 pm — 2:31 pm
+1 day
4:19 pm — 10:23 pm AS330 Alaska Airlines
Seattle — Chicago
12h 42m stop
11:05 am — 2:31 pm UA763 United Airlines
Chicago — Portland
19h 12m
including layover
Find flight
from$488
4:19 pm — 10:49 am
+1 day
4:19 pm — 10:23 pm AS330 Alaska Airlines
Seattle — Chicago
8h 47m stop
7:10 am — 10:49 am UA5623 United Airlines
Chicago — Portland
15h 30m
including layover
Find flight
from$925
5:55 pm — 2:31 pm
+1 day
5:55 pm — 11:59 pm AS538 Alaska Airlines
Seattle — Chicago
11h 6m stop
11:05 am — 2:31 pm UA763 United Airlines
Chicago — Portland
17h 36m
including layover
Find flight
from$512
5:55 pm — 10:49 am
+1 day
5:55 pm — 11:59 pm AS538 Alaska Airlines
Seattle — Chicago
7h 11m stop
7:10 am — 10:49 am UA5623 United Airlines
Chicago — Portland
13h 54m
including layover
Find flight
from$925
6:11 am — 11:27 pm
6:11 am — 2:29 pm AS280 Alaska Airlines
Seattle — Newark
7h 30m stop
10:00 pm — 11:28 pm UA1232 United Airlines
Newark — Portland
14h 16m
including layover
Find flight
from$352
6:41 am — 6:13 pm
6:41 am — 3:00 pm AS298 Alaska Airlines
Seattle — Newark
1h 49m stop
4:49 pm — 6:13 pm UA255 United Airlines
Newark — Portland
8h 32m
including layover
Find flight
from$371
9:25 pm — 10:41 am
+1 day
9:25 pm — 5:40 am AS444 Alaska Airlines
Seattle — Philadelphia
3h 30m stop
9:10 am — 10:41 am AS6155 Alaska Airlines
Philadelphia — Portland
10h 16m
including layover
Find flight
from$236
9:40 am — 10:45 pm
9:40 am — 5:54 pm AS442 Alaska Airlines
Seattle — Philadelphia
3h 21m stop
9:15 pm — 10:45 pm AS6736 Alaska Airlines
Philadelphia — Portland
10h 5m
including layover
Find flight
from$263
7:00 am — 11:59 pm
7:00 am — 9:45 am AS797 Alaska Airlines
Seattle — Los Angeles
3h 3m stop
12:48 pm — 8:59 pm AS6 Alaska Airlines
Los Angeles — Washington D.C.
1h 11m stop
10:10 pm — 11:59 pm AS4484 Alaska Airlines
Washington D.C. — Portland
13h 59m
including layover
Find flight
from$357
7:05 am — 11:14 pm
7:05 am — 9:16 am AS1082 Alaska Airlines
Seattle — San Francisco
2h 24m stop
11:40 am — 8:30 pm UA2863 United Airlines
San Francisco — Newark
1h 15m stop
9:45 pm — 11:14 pm UA2127 United Airlines
Newark — Portland
13h 9m
including layover
Find flight
from$460
8:05 am — 11:55 pm
8:05 am — 10:50 am AS1306 Alaska Airlines
Seattle — Los Angeles
1h 58m stop
12:48 pm — 8:59 pm AS6 Alaska Airlines
Los Angeles — Washington D.C.
1h 8m stop
10:07 pm — 11:55 pm AS4599 Alaska Airlines
Washington D.C. — Portland
12h 50m
including layover
Find flight
from$314
8:05 am — 11:59 pm
8:05 am — 10:50 am AS1306 Alaska Airlines
Seattle — Los Angeles
1h 58m stop
12:48 pm — 8:59 pm AS6 Alaska Airlines
Los Angeles — Washington D.C.
1h 11m stop
10:10 pm — 11:59 pm AS4484 Alaska Airlines
Washington D.C. — Portland
12h 54m
including layover
Find flight
from$357
*Departure and arrival times are local. Last updated on 05/22/2025

Flight Information

There are 37 flights by Alaska Airlines from Seattle to Portland every week with departures from Seattle-Tacoma Intl, Boeing Field International Airport, Kenmore Air Harbor SPB. All flights arrive at Portland Intl Jetport.

Departures start from 10:05 am to 9:42 am. Nonstop flight is 7h 40m. The time difference between Seattle and Portland is 3h.

  • The fastest flight 7h 40m
  • Average flight time 12h 54m
  • The earliest flight 10:05 am
  • The latest flight 9:42 am
  • Distance 2483 ml

The cheapest months for traveling to Portland are june (from 315 $), may (from 351 $), july (from 459 $).

The most expensive and popular months are august (from 487 $), july (from 459 $), may (from 351 $).

The cheapest flight by Alaska Airlines that our users were able to find is $236. This airfare is economy class on one-way AS444 flight for June 6, 2025 leaving Seattle-Tacoma Intl in Seattle at 9:25 pm, it includes all taxes and additional fees.

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Other Popular Airlines on the Route

Besides Alaska Airlines there are other 4 airline carriers between Seattle and Portland. Please review schedules and prices from the most popular airlines to find the best airfare deals from Seattle to Portland.

Nonstop flights

There’re no direct flights on this route. Try flights with stops.

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Connecting Flights

List of flights with layovers (1 and more stops):

  • SY - Sun Country Airlines
    from $129
    Find
  • HA - Hawaiian Airlines
    from $415
    Find
  • UA - United Airlines
    from $181
    Find
  • NK - Spirit Airlines
    from $189
    Find
See more connecting flights

How to book an air ticket yourself?

How to book an air ticket yourself?
  • Fill in the search parameters — cities of departure and destination, departure and return dates and click «Find flights»
  • Select the best flight that you like. Please, check the airports of departure and arrival. Select the best fare, but pay attention to the following flight details - airports of departure and arrival, flight duration and layovers. Please use filters and sort to find the best flight.
  • Click «Buy» when you are ready — our system will redirect you to the site that sells the selected airfare.
  • Fill in all passenger and payment information — passport and contact information, please double check all passengers’ names and make a payment for your itinerary.
  • That's it — you will receive an email with your e-ticket usually within 10 minutes after your flight is confirmed. Please, print the e-ticket and have it with you at the airport. You would need to have only a passport and/or a required form of ID to travel. Please, check your Visa requirements if you travel outside of the United States or Canada.

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