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Cheap flights from Seattle to Portland from £89

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/9. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — PDX
11 Jul — 18 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Seattle to Portland

Enter your travel dates to find the best prices.

Cheapest flights from Seattle to Portland
Explore the most affordable flight options available from Seattle to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 June 2026.

Tue 20/1015:59
SEA
-
PDX
Nonstop1h 01m
Alaska Airlines
Tue 3/1110:45
PDX
-
SEA
Nonstop1h 12m
Alaska Airlines
Deal found 8/6£132
Wed 11/1109:30
SEA
-
PDX
Nonstop1h 08m
Delta
Sun 15/1117:45
PDX
-
SEA
Nonstop1h 10m
Delta
Deal found 10/6£140
Fri 4/920:59
SEA
-
PDX
Nonstop1h 03m
Delta
Sun 6/912:25
PDX
-
SEA
Nonstop1h 10m
Delta
Deal found 10/6£147
Tue 1/922:50
SEA
-
PDX
Nonstop1h 06m
Delta
Fri 4/917:54
PDX
-
SEA
Nonstop1h 11m
Delta
Deal found 11/6£185
Tue 20/1021:59
SEA
-
PDX
Nonstop1h 03m
Alaska Airlines
Sat 24/1011:13
PDX
-
SEA
1 stop3h 47m
Alaska Airlines
Deal found 7/6£187
Sat 19/917:47
SEA
-
PDX
1 stop14h 14m
Alaska Airlines
Sun 20/911:48
PDX
-
SEA
Nonstop1h 02m
Alaska Airlines
Deal found 11/6£188
Wed 8/715:55
SEA
-
PDX
Nonstop1h 00m
Alaska Airlines
Tue 14/712:03
PDX
-
SEA
Nonstop1h 00m
Alaska Airlines
Deal found 9/6£189
Thu 2/710:35
SEA
-
PDX
Nonstop1h 07m
Delta
Sun 5/711:20
PDX
-
SEA
Nonstop1h 16m
Delta
Deal found 9/6£192
Fri 2/1015:52
SEA
-
PDX
1 stop14h 28m
Alaska Airlines
Sat 3/1009:28
PDX
-
SEA
Nonstop1h 07m
Alaska Airlines
Deal found 10/6£203

Find flight deals from Seattle to Portland

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Portland (PDX). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 11 June 2026.

Round-trip from

£132

One-way from

£89

Popular in

June

Cheapest in

January

Average price

£289
Alaska Airlines
  • Alaska Airlines
  • 20/10-3/11
  • Nonstop
  • 2h 13m total
  • Seattle to Portland
Search Deals
Delta
  • Delta
  • 5/9
  • Nonstop
  • 1h 08m total
  • Seattle to Portland
Search Deals
Highest demand for flights based on searches. 23% potential increase in price (£39 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (£8 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Seattle to Portland that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 11 June 2026.
Use the filters below to find and compare flights from Seattle to Portland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

SeattlePortland

SEA - PDX

SEAPDX

Seattle/Tacoma Intl

Tue 20/10

10:35-11:36

Nonstop1h 01m

Portland

Sat 24/10

21:29-22:25

Nonstop0h 56m

£132

SeattlePortland

SEA - PDX

SEAPDX

Seattle/Tacoma Intl

Wed 11/11

09:30-10:38

Nonstop1h 08m

Portland

Sun 15/11

17:45-18:55

Nonstop1h 10m

£140

SeattlePortland

SEA - PDX

SEAPDX

Seattle/Tacoma Intl

Thu 2/7

09:30-10:39

Nonstop1h 09m

Portland

Sun 5/7

20:42-22:00

Nonstop1h 18m

£192

SeattlePortland

SEA - PDX

SEAPDX

Seattle/Tacoma Intl

Sun 19/7

10:35-11:41

Nonstop1h 06m

Portland

Tue 4/8

17:54-19:05

Nonstop1h 11m

£192

SeattlePortland

SEA - PDX

SEAPDX

Seattle/Tacoma Intl

Fri 7/8

09:35-10:42

Nonstop1h 07m

Portland

Sat 8/8

13:42-14:55

Nonstop1h 13m

£192

SeattlePortland

SEA - PDX

SEAPDX

Seattle/Tacoma Intl

Fri 10/7

18:55-20:02

Nonstop1h 07m

Portland

Fri 24/7

12:23-13:34

Nonstop1h 11m

£192

SeattlePortland

SEA - PDX

SEAPDX

Seattle/Tacoma Intl

Sat 25/7

18:55-20:02

Nonstop1h 07m

Portland

Sun 26/7

05:30-06:35

Nonstop1h 05m

£192

SeattlePortland

SEA - PDX

SEAPDX

Seattle/Tacoma Intl

Tue 1/9

20:35-10:09

1 stop13h 34m

Portland

Fri 4/9

05:07-06:00

Nonstop0h 53m

£209

SeattlePortland

SEA - PDX

SEAPDX

Seattle/Tacoma Intl

Fri 7/8

15:50-06:06

1 stop14h 16m

Portland

Sat 8/8

08:19-09:14

Nonstop0h 55m

£211

SeattlePortland

SEA - PDX

SEAPDX

Seattle/Tacoma Intl

Tue 7/7

22:50-23:54

Nonstop1h 04m

Portland

Wed 8/7

09:32-10:55

Nonstop1h 23m

£237

Flights are sorted by cheapest return flights first.

Deals found on 9/6

Showing 1-10 of 23 resultsSorted by cheapest first
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Best time to book a flight from Seattle to Portland

Have a flexible travel schedule? Discover the best time to fly to Portland from Seattle with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Seattle to Portland

What is the cheapest month to book a flight from Seattle to Portland?

Currently, January is the cheapest month in which you can book a flight from Seattle to Portland (average of £74). Flying from Seattle to Portland in June is currently the most expensive (average of £289). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SEA to PDX?

Find hourly flight availability from Seattle to Portland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 11 June 2026.

Unlike in the morning, when flights are generally more expensive, you can save up to 64% on flights from Seattle to Portland by exploring options for tickets in the afternoon.

How much does it cost for a return flight from Seattle to Portland?

Related info for your journey

Find useful and relevant information for your journey from Seattle to Portland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How popular is this Seattle to Portland flight route?

    This flight path from Seattle/Tacoma Intl to Portland was viewed by 2 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Seattle to Portland?

    There are many flights that can get you from Seattle to Portland in 1h 01m. Fly via Alaska Airlines or Delta to get the fastest option. Airlines will cover a distance of 129 mi. Most flights are nonstop.

  • What are the most reliable airlines from Seattle to Portland?

    Before booking your flight to Portland from Seattle, check out the most reliable airlines to get you to your destination on time: Sun Country Air (100%), KLM (91%), Delta( 90%).

  • Can I find deals for flights from Seattle to Portland that include hotel bookings?

    Yes. In addition to deals on Seattle to Portland flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Portland?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Portland.

  • Can I find deals for business class flights from Seattle to Portland?

    Yes. Cheapflights offers flight deals from Seattle to Portland by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Seattle to Portland?

    Currently, January is the cheapest month in which you can book a flight from Seattle to Portland (average of £74). Flying from Seattle to Portland in June is currently the most expensive (average of £289). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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How does Cheapflights help users find flights from Seattle to Portland?

Deals for Seattle to Portland flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Seattle to Portland?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Portland from Seattle.

Can Cheapflights find flights from Seattle to Portland with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Seattle to Portland, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Seattle to Portland become cheaper?

Of course! You can now track prices for flights from Seattle to Portland and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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