£142 Cheap Delta flights from Seattle to Portland (SEA→PDX)

View £142 flight on Mon, 3 Aug 2026Opens in a new window

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Delta flights from Seattle to Portland (SEA→PDX)

Prices were available within the past 7 days and start at £142 for one-way flights and £148 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Wed, 29 Apr - Thu, 21 May
SEA
Seattle
PDX
Portland
£148 Return, found 5 days ago
£148
Return
found 5 days ago
Select Delta flight, departing Wed, 29 Apr from Seattle to Portland, returning Thu, 21 May, priced at £148 found 5 days ago
Delta
Wed, 20 May - Thu, 11 Jun
SEA
Seattle
PDX
Portland
£167 Return, found 5 days ago
£167
Return
found 5 days ago
Select Delta flight, departing Wed, 20 May from Seattle to Portland, returning Thu, 11 Jun, priced at £167 found 5 days ago

Alternative airports near Portland

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Portland Intl. PDX. Cheapest and Closest option available. Average driving time to city centre is 17 minutes. Flights from £225
PDX
Portland Intl.
CheapestClosest
Average driving time to city centre17 min
Flights from £225

Find the cheapest month to fly from Seattle (SEA) to Portland (PDX)

January is typically the cheapest month to fly

From £58 - £155 per traveller.

Frequently asked questions

How much is a Delta Air Lines flight from Seattle - Tacoma Intl. Airport (SEA) to Portland Intl. Airport (PDX)?
Apply the "Price (lowest to highest)" filter on Expedia to look for cheap Delta Air Lines round-trip flights from £148 from SEA to PDX. Affordable one-way tickets from £142 are also available.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from SEA to PDX with Delta Air Lines?
Search for round-trip or one-way flights to Portland in January or December. You could find lower fares with Delta Air Lines during these off-season months.
Does Delta Air Lines fly nonstop from Seattle - Tacoma Intl. Airport (SEA) to Portland Intl. Airport (PDX)?
Yes, you can fly from Seattle - Tacoma Intl. Airport (SEA) to Portland Intl. Airport (PDX) on any of Delta Air Lines's 48 weekly direct flights. Make use of our "Nonstop" and "Airline" filters to find the Delta Air Lines flight that'll land at PDX at a time that suits you.
How long does it take to fly from SEA to PDX with Delta Air Lines?
From takeoff to arrival, a direct Delta Air Lines flight from Seattle - Tacoma Intl. Airport (SEA) to Portland Intl. Airport (PDX) takes approximately 1h 4m.
Which day of the week has the most Delta Air Lines flights from Seattle - Tacoma Intl. Airport (SEA) to Portland Intl. Airport (PDX)?
If you're looking for flexibility, Thursday offers the most choice for Delta Air Lines flights from Seattle - Tacoma Intl. Airport (SEA) to Portland Intl. Airport (PDX). Take your pick of 7 different departures.
What airports does Delta Air Lines fly into in Portland?
Portland Intl. Airport (PDX) is the primary Portland hub for Delta Air Lines flights from Seattle - Tacoma Intl. Airport (SEA).
What type of plane does Delta Air Lines fly from Seattle - Tacoma Intl. Airport (SEA) to Portland Intl. Airport (PDX)?
You'll likely be on an Embraer 175 or a Boeing 737-800 when flying Delta Air Lines from Seattle - Tacoma Intl. Airport (SEA) to Portland Intl. Airport (PDX). However, keep in mind that a different aircraft could be assigned to your route depending on operational demands.
Can I change or cancel my Delta Air Lines flight from Seattle - Tacoma Intl. Airport (SEA) to Portland Intl. Airport (PDX)?
It's generally possible to cancel or change your flight, although there may be additional charges if your booking was made over 24 hours ago. Prefer to keep your options open? Make use of Expedia's "No cancel fee" or "Changes included" filter to find flights that won't charge you extra if you need to adjust your plans. To modify your booking, visit "Trips," select your flight and click on "Manage Booking" for further information.

Travel information

0
Origin airport
Seattle - Tacoma Intl.
Destination airport
Portland Intl.
Airlines serving
Alaska Airlines
Popular airline
Alaska Airlines
Distance
206 km
*Available to Expedia members.