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Cheap flights from Seattle to Portland from £64

SEA — PDX
15 Oct — 22 Oct1
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

Fri 2/1007:30 -
Nonstop1h 13m
Mon 5/1017:49 -
Nonstop1h 15m
Deal found 10/9£87
Fri 2/1012:30 -
Nonstop1h 07m
Mon 5/1020:08 -
1 stop11h 18m
Deal found 10/9£111
Sat 3/1021:59 -
Nonstop1h 03m
Sat 10/1014:53 -
1 stop5h 03m
Deal found 10/9£119
Mon 19/1018:55 -
Nonstop1h 05m
Thu 22/1020:44 -
Nonstop1h 16m
Deal found 10/9£131
Thu 1/1007:08 -
1 stop9h 18m
Sun 4/1009:31 -
Nonstop1h 08m
Deal found 10/9£133
Mon 19/1009:10 -
1 stop11h 40m
Thu 22/1007:09 -
Nonstop1h 16m
Deal found 10/9£141
Fri 2/1007:08 -
Nonstop1h 10m
Sun 4/1020:08 -
1 stop16h 36m
Deal found 10/9£156
Fri 2/1020:43 -
1 stop13h 07m
Fri 9/1009:31 -
Nonstop1h 08m
Deal found 10/9£167
Wed 21/1020:59 -
Nonstop0h 57m
Wed 28/1014:30 -
Nonstop1h 05m
Deal found 11/9£168

Find flight deals from Seattle to Portland

Round-trip from

£87

One-way from

£64

Popular in

June

Cheapest in

January

Average price

£194
Delta
  • Delta
  • 4/11-7/11
  • Nonstop
  • 2h 23m total
  • Seattle to Portland
Search Deals
Alaska Airlines
  • Alaska Airlines
  • 10/10-31/12
  • Nonstop
  • 1h 08m total
  • Seattle to Portland
Search Deals
Highest demand for flights based on searches. 24% potential increase in price (£44 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 September 2026
Search Deals

Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Seattle to Portland that are best for you.

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Fly to

Route

Depart

Return

Price

Cheapest return flight

SeattlePortland

SEA Seattle/Tacoma Intl - PDX Portland

SEAPDX

Seattle/Tacoma Intl

Tue 13/10

18:55-20:00

Nonstop1h 05m

Portland

Wed 31/12

00:00-00:00

Nonstop0h 00m

£66

SeattlePortland

SEA Seattle/Tacoma Intl - PDX Portland

SEAPDX

Seattle/Tacoma Intl

Sun 7/3

19:45-20:50

Nonstop1h 05m

Portland

Wed 31/12

00:00-00:00

Nonstop0h 00m

£66

SeattlePortland

SEA Seattle/Tacoma Intl - PDX Portland

SEAPDX

Seattle/Tacoma Intl

Wed 4/11

16:00-17:04

Nonstop1h 04m

Portland

Sat 7/11

07:00-08:19

Nonstop1h 19m

£87

SeattlePortland

SEA Seattle/Tacoma Intl - PDX Portland

SEAPDX

Seattle/Tacoma Intl

Fri 2/10

07:30-08:43

Nonstop1h 13m

Portland

Mon 5/10

17:49-19:04

Nonstop1h 15m

£87

SeattlePortland

SEA Seattle/Tacoma Intl - PDX Portland

SEAPDX

Seattle/Tacoma Intl

Thu 8/10

07:32-08:46

Nonstop1h 14m

Portland

Thu 15/10

07:10-08:29

Nonstop1h 19m

£87

SeattlePortland

SEA Seattle/Tacoma Intl - PDX Portland

SEAPDX

Seattle/Tacoma Intl

Sun 15/11

08:33-13:29

1 stop4h 56m

Portland

Wed 31/12

00:00-00:00

Nonstop0h 00m

£109

SeattlePortland

SEA Seattle/Tacoma Intl - PDX Portland

SEAPDX

Seattle/Tacoma Intl

Wed 14/10

18:55-20:00

Nonstop1h 05m

Portland

Wed 31/12

00:00-00:00

Nonstop0h 00m

£110

SeattlePortland

SEA Seattle/Tacoma Intl - PDX Portland

SEAPDX

Seattle/Tacoma Intl

Wed 21/10

18:55-20:00

Nonstop1h 05m

Portland

Wed 31/12

00:00-00:00

Nonstop0h 00m

£110

SeattlePortland

SEA Seattle/Tacoma Intl - PDX Portland

SEAPDX

Seattle/Tacoma Intl

Mon 26/10

20:47-09:50

1 stop13h 03m

Portland

Wed 31/12

00:00-00:00

Nonstop0h 00m

£116

SeattlePortland

SEA Seattle/Tacoma Intl - PDX Portland

SEAPDX

Seattle/Tacoma Intl

Thu 22/10

06:39-23:14

1 stop16h 35m

Portland

Wed 31/12

00:00-00:00

Nonstop0h 00m

£116

Flights are sorted by cheapest return flights first.

Deals found on 10/9

Showing 1-10 of 21 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

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 £73). Flying from Seattle to Portland in June is currently the most expensive (average of £301). 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?

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.

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

Airfare is below average for this route at the moment.

Seattle to Portland flights typically cost between £146 and £386 in October.
The cheapest return price found within the last 5 days was £87 on Delta (2 Oct–5 Oct).

Related info for your journey

  • How popular is this Seattle to Portland flight route?

    This flight path from Seattle/Tacoma Intl to Portland was viewed by 1 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 04m. 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: Scandinavian Airlines (81%), Air France (81%), Korean Air( 81%).

  • 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 £73). Flying from Seattle to Portland in June is currently the most expensive (average of £301). 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.

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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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