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Cheap flights from Seattle to Portland from £47

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 3/9. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — PDX
2 Jul — 9 Jul1
1 adult

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 27 June 2025.

Round-trip from

£71

One-way from

£47

Popular in

July

Cheapest in

October

Average price

£150
Delta
  • Delta
  • 20/8-30/8
  • Nonstop
  • 2h 15m total
  • Seattle to Portland
Search Deals
Hawaiian Airlines
  • Hawaiian Airlines
  • 3/9
  • Nonstop
  • 0h 57m total
  • Seattle to Portland
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£14 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£3 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2025
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Find flight deals from Seattle to Portland

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 27 June 2025.

Wed 20/822:55SEA - PDX
Nonstop0h 57mDelta
Sat 30/817:45PDX - SEA
Nonstop1h 10mDelta
Deal found 25/6£71
Wed 20/812:25SEA - PDX
1 stop3h 57mAlaska Airlines
Sat 30/819:34PDX - SEA
Nonstop1h 01mAlaska Airlines
Deal found 25/6£102
Tue 9/906:15SEA - PDX
1 stop7h 15mSouthwest
Wed 10/910:55PDX - SEA
1 stop4h 15mSouthwest
Deal found 24/6£114
Sun 10/807:00SEA - PDX
Nonstop0h 52mHawaiian Airlines
Sun 17/805:15PDX - SEA
Nonstop0h 53mHawaiian Airlines
Deal found 26/6£125

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 27 June 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

Wed 20/8

07:10-08:15

Nonstop1h 05m

Portland

Sat 30/8

17:45-18:55

Nonstop1h 10m

£71

SeattlePortland

SEA - PDX

SEAPDX

Seattle/Tacoma Intl

Wed 20/8

12:25-16:22

1 stop3h 57m

Portland

Sat 30/8

19:34-20:35

Nonstop1h 01m

£102

SeattlePortland

SEA - PDX

SEAPDX

Seattle/Tacoma Intl

Tue 9/9

06:15-13:30

1 stop7h 15m

Portland

Wed 10/9

10:55-15:10

1 stop4h 15m

£114

SeattlePortland

SEA - PDX

SEAPDX

Seattle/Tacoma Intl

Sun 10/8

07:00-07:52

Nonstop0h 52m

Portland

Sun 17/8

05:15-06:08

Nonstop0h 53m

£125

SeattlePortland

SEA - PDX

SEAPDX

Seattle/Tacoma Intl

Wed 3/9

05:20-06:17

Nonstop0h 57m

£47

SeattlePortland

SEA - PDX

SEAPDX

Seattle/Tacoma Intl

Wed 13/8

11:46-12:55

Nonstop1h 09m

£50

SeattlePortland

SEA - PDX

SEAPDX

Seattle/Tacoma Intl

Tue 5/8

06:15-13:30

1 stop7h 15m

£58

SeattlePortland

SEA - PDX

SEAPDX

Seattle/Tacoma Intl

Wed 13/8

21:44-09:37

1 stop11h 53m

£85

SeattlePortland

SEA - PDX

SEAPDX

Seattle/Tacoma Intl

Tue 23/12

07:15-23:19

1 stop16h 04m

£176

Flights are sorted by cheapest return flights first.

Deals found on 26/6

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 20 June 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 £736). Flying from Seattle to Portland in July is currently the most expensive (average of £1,048). 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 27 June 2025.

When flying from Seattle to Portland, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Seattle to Portland

Explore weekly flight availability from Seattle to Portland. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 27 June 2025.

The most flights from SEA to PDX are scheduled on a Thursday (92 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (61 on average).

Reviews of airlines servicing Portland

Get insights into the airlines that provide service to Portland. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Portland. Reviews last updated 27 June 2025.
Read reviews from past customers who have flown with Alaska Airlines, Southwest, andDelta from Seattle to Portland. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Boarding

8.1

Comfort

7.8

Food

7.1

Crew

8.5

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

STS - PDX

One or two midday non-stop flights from PDX to Santa Rosa would be great. The very early and late options are hard on older passengers.
Alaska Airlines
8.0
Very Good
10,000 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Boarding

8.1

Comfort

7.8

Food

7.1

Crew

8.5

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

STS - PDX

One or two midday non-stop flights from PDX to Santa Rosa would be great. The very early and late options are hard on older passengers.
Southwest
8.0
Very Good
4,278 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Boarding

8.1

Comfort

7.8

Food

7.1

Crew

8.5

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

STS - PDX

One or two midday non-stop flights from PDX to Santa Rosa would be great. The very early and late options are hard on older passengers.
Delta
8.0
Very Good
7,963 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Boarding

8.1

Comfort

7.8

Food

7.1

Crew

8.5

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

STS - PDX

One or two midday non-stop flights from PDX to Santa Rosa would be great. The very early and late options are hard on older passengers.
Hawaiian Airlines
7.8
Good
2,525 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Boarding

8.1

Comfort

7.8

Food

7.1

Crew

8.5

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

STS - PDX

One or two midday non-stop flights from PDX to Santa Rosa would be great. The very early and late options are hard on older passengers.
United Airlines
7.4
Good
8,838 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Boarding

8.1

Comfort

7.8

Food

7.1

Crew

8.5

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

STS - PDX

One or two midday non-stop flights from PDX to Santa Rosa would be great. The very early and late options are hard on older passengers.

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 3 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • What are the cheapest airlines flying from Seattle to Portland round-trip?

    Delta, at £71, was found to be the cheapest airline from Seattle to Portland.Alternate airlines flying return to your destination include Alaska Airlines and Southwest. Users have found that Delta is 46% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Seattle to Portland one-way?

    £47 is the cheapest one-way deal found within the past few days, from Hawaiian Airlines. You may also be able to find cheap deals on Delta and Southwest, with prices starting from £50 and £58, respectively.

  • 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%), China Eastern (100%), WestJet( 92%).

  • 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 £736). Flying from Seattle to Portland in July is currently the most expensive (average of £1,048). 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 Seattle?

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

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