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Cheap flights from Seattle to Portland from £46

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 29/11. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — PDX
30 Nov — 7 Dec1
1 adult
1 adult, Economy, 0 bags

Find 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 31 October 2025.

Sun 23/1107:15SEA - PDX
Nonstop1h 16mDelta
Sun 30/1119:59PDX - SEA
Nonstop1h 15mDelta
Deal found 31/10£60
Wed 10/1211:36SEA - PDX
Nonstop1h 06mAlaska Airlines
Sat 13/1210:40PDX - SEA
Nonstop1h 09mAlaska Airlines
Deal found 29/10£74
Thu 11/1208:25SEA - PDX
Nonstop1h 07mAlaska Airlines
Thu 11/1210:40PDX - SEA
Nonstop1h 09mAlaska Airlines
Deal found 31/10£86
Sat 20/1222:55SEA - PDX
Nonstop1h 00mDelta
Tue 23/1205:30PDX - SEA
Nonstop1h 05mDelta
Deal found 30/10£89
Wed 3/1207:15SEA - PDX
Nonstop1h 14mDelta
Wed 3/1219:30PDX - SEA
Nonstop1h 14mDelta
Deal found 29/10£90
Wed 26/1107:15SEA - PDX
Nonstop1h 16mDelta
Sun 30/1114:23PDX - SEA
Nonstop1h 12mDelta
Deal found 31/10£97
Fri 5/1212:45SEA - PDX
Nonstop1h 05mAlaska Airlines
Sun 7/1213:34PDX - SEA
Nonstop1h 05mAlaska Airlines
Deal found 29/10£102
Thu 27/1115:58SEA - PDX
Nonstop0h 59mAlaska Airlines
Thu 4/1217:49PDX - SEA
Nonstop1h 06mAlaska Airlines
Deal found 30/10£105
Wed 3/1211:29SEA - PDX
1 stop9h 21mAlaska Airlines
Sun 7/1217:49PDX - SEA
Nonstop1h 06mAlaska Airlines
Deal found 30/10£108
Thu 4/1209:54SEA - PDX
Nonstop0h 56mAlaska Airlines
Wed 10/1210:36PDX - SEA
1 stop6h 00mAlaska Airlines
Deal found 30/10£122
Thu 4/1223:15SEA - PDX
1 stop10h 32mAlaska Airlines
Sun 7/1213:34PDX - SEA
Nonstop1h 05mAlaska Airlines
Deal found 30/10£131
Wed 26/1105:20SEA - PDX
Nonstop0h 58mAlaska Airlines
Wed 3/1214:37PDX - SEA
Nonstop1h 10mAlaska Airlines
Deal found 29/10£134

Cheap 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 31 October 2025.

Round-trip from

£60

One-way from

£46

Popular in

June

Cheapest in

January

Average price

£157
Delta
  • Delta
  • 4/12-10/12
  • Nonstop
  • 2h 28m total
  • Seattle to Portland
Search Deals
Delta
  • Delta
  • 29/11
  • Nonstop
  • 1h 16m total
  • Seattle to Portland
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (£21 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£4 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 2025
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 31 October 2025.
Use the filters below to find and compare flights from Seattle to Portland that are best for you.

Fly from

Seattle

Fly to

Portland

Route

Depart

Return

Price

SeattlePortland

SEA - PDX

SEAPDX

Seattle/Tacoma Intl

Thu 4/12

21:35-22:40

Nonstop1h 05m

Portland

Wed 10/12

19:30-20:44

Nonstop1h 14m

£60

SeattlePortland

SEA - PDX

SEAPDX

Seattle/Tacoma Intl

Wed 10/12

08:25-09:32

Nonstop1h 07m

Portland

Sat 13/12

21:44-22:45

Nonstop1h 01m

£60

SeattlePortland

SEA - PDX

SEAPDX

Seattle/Tacoma Intl

Fri 12/12

07:15-08:28

Nonstop1h 13m

Portland

Mon 15/12

09:10-10:26

Nonstop1h 16m

£60

SeattlePortland

SEA - PDX

SEAPDX

Seattle/Tacoma Intl

Thu 27/11

21:35-22:40

Nonstop1h 05m

Portland

Thu 4/12

07:15-08:29

Nonstop1h 14m

£60

SeattlePortland

SEA - PDX

SEAPDX

Seattle/Tacoma Intl

Fri 21/11

23:15-00:14

Nonstop0h 59m

Portland

Tue 25/11

14:23-15:35

Nonstop1h 12m

£60

SeattlePortland

SEA - PDX

SEAPDX

Seattle/Tacoma Intl

Sat 29/11

23:15-00:14

Nonstop0h 59m

Portland

Sat 6/12

14:23-15:35

Nonstop1h 12m

£60

SeattlePortland

SEA - PDX

SEAPDX

Seattle/Tacoma Intl

Mon 24/11

09:43-10:55

Nonstop1h 12m

Portland

Mon 1/12

05:30-06:39

Nonstop1h 09m

£60

SeattlePortland

SEA - PDX

SEAPDX

Seattle/Tacoma Intl

Thu 11/12

08:25-09:32

Nonstop1h 07m

Portland

Thu 11/12

10:40-11:49

Nonstop1h 09m

£86

SeattlePortland

SEA - PDX

SEAPDX

Seattle/Tacoma Intl

Wed 11/2

19:50-20:47

Nonstop0h 57m

Portland

Wed 18/2

17:30-18:23

Nonstop0h 53m

£89

SeattlePortland

SEA - PDX

SEAPDX

Seattle/Tacoma Intl

Sat 21/2

07:30-08:37

Nonstop1h 07m

Portland

Sun 22/2

19:45-20:50

Nonstop1h 05m

£96

Flights are sorted by cheapest return flights first.

Deals found on 29/10

Showing 1-10 of 17 results
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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

How far ahead should I book a flight from Seattle to Portland?

Use this chart to determine the optimal time to book a return flight from Seattle to Portland. Price data was last updated on 24 October 2025.

The price you pay for your flight from Seattle to Portland may vary depending on when you book. For the best chance of a lower fare, look to book 37 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 £52). Flying from Seattle to Portland in July is currently the most expensive (average of £129). 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 31 October 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 56% on flights from Seattle to Portland by exploring options for tickets in the afternoon.

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 4 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 05m. Fly via Delta or Alaska Airlines 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%), WestJet (91%), Scandinavian Airlines( 91%).

  • 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 £52). Flying from Seattle to Portland in July is currently the most expensive (average of £129). 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

Travelling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
Cannon Beach
Lincoln City

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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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