Find Cheap Flights from Portland to Seattle (PDX - SEA)

Flights overview

Useful information for finding cheap flights from Portland to Seattle and booking your next trip

Cheapest round-trip flights	$117	Alaska Nonstop 2 hr Thu, Apr 9 — Sun, Apr 12	The cheapest round-trip flight from Portland to Seattle is currently $117
Cheapest one-way flight	$79	Alaska Nonstop 2 hr Wed, Mar 25	The cheapest one-way flight from Portland to Seattle is currently $79
Last-minute weekend getaway	$417	Delta Nonstop 2 hr Thu, Jan 29 — Mon, Feb 2	The cheapest last-minute weekend getaway from Portland to Seattle is currently $417
Cheapest business class flights	$227	Delta Nonstop 2 hr Thu, Apr 9 — Sun, Apr 12	The cheapest business class round-trip flight from Portland to Seattle is currently $227

Fastest flight	55 min	The fastest nonstop flight from Portland to Seattle takes 55 min
Nonstop flights	Every day	There are direct flights on this route every day.

When is the cheapest time to fly?

The cheapest month to fly from Portland to Seattle is typically November. The most expensive month to fly is typically July.

November Cheapest	Typical prices: $75–390
July Most expensive	Typical prices: $215–335

Popular airlines from Portland to Seattle

Alaska

Nonstop

from $117

Typical price: $135–345

61 weekly nonstop flights

PDX - SEA Every day

719 weekly connecting flights

PDX - SEA Every day
Delta

Nonstop

from $117

Typical price: $125–335

48 weekly nonstop flights

PDX - SEA Every day
Southwest

from $347

Typical price: $295–530

93 weekly connecting flights

PDX - SEA Every day
United

from $266

Typical price: $285–730

76 weekly connecting flights

PDX - SEA Every day
American

from $364

Typical price: $475–990

9 weekly connecting flights

PDX - SEA Every Tue, Wed, Thu, Fri, Sun
Frontier

Typical price: $145–330

5 weekly connecting flights

PDX - SEA Every Thu, Fri, Sun

Popular airports near Portland

Portland International Airport (PDX)

Portland United States 20 min 6 mi
Seattle-Tacoma International Airport (SEA)

Seattle United States 2 hr 37 min 134 mi
Eugene Airport (EUG)

Eugene United States 1 hr 54 min 99 mi
Redmond Municipal Airport (RDM)

Redmond United States 2 hr 57 min 114 mi

Popular airports near Seattle

Seattle-Tacoma International Airport (SEA)

Seattle United States 18 min 11 mi
Paine Field (PAE)

Everett United States 31 min 21 mi
King County International Airport - Boeing Field (BFI)

Seattle United States 11 min 5 mi
Portland International Airport (PDX)

Portland United States 2 hr 44 min 140 mi

Frequently asked questions about flying from Portland to Seattle

The cheapest flights from Portland to Seattle are usually in November. Typical ticket prices in November range from $75 to $390.

The cheapest round-trip flight from Portland to Seattle recently found on Google Flights was with Alaska from $117. The cheapest one-way flight was with Alaska from $79.

Some of the cheapest round-trip deals we found with different airlines:

The cheapest Alaska flight from Portland to Seattle is $117, flying from Apr 9 to Apr 12.
The cheapest Delta flight from Portland to Seattle is $117, flying from Apr 9 to Apr 12.
The cheapest Southwest flight from Portland to Seattle is $347, flying from Mar 6 to Mar 9.
The cheapest United flight from Portland to Seattle is $266, flying from Mar 7 to Mar 9.
The cheapest American flight from Portland to Seattle is $364, flying from Mar 6 to Mar 9.

The cheapest round-trip flight from Portland to Seattle starts at $117 from Thu, Apr 9 to Sun, Apr 12. The cheapest one-way flight starts at $79 and departs on Wed, Mar 25.

55 min is the shortest flight time from Portland to Seattle.

Most visitors come May–Sep, a period encompassing events such as the Seattle International Film Festival (May); Seafair (Jul), a summer festival including boat races, marathons and parades; and Bumbershoot (Sep), an international music and arts festival. Rainy season is Nov–May, though rain is possible year-round.

It's easy to use Google Flights to find the cheapest days to fly from Portland to Seattle.
Just click the Departure label near the top of the page to open the calendar. Choose a start date and a return date to see how the round-trip fare changes on those specific days.
Adjust the trip type to see one-way fares. The cheapest available flights are highlighted and easy to spot. Once you settle on dates, click the Search button to see flight options and book the deal.

You can also turn on price tracking to get alerts if the price changes for a route or flight.

What counts as the best airline for your flights from Portland to Seattle really depends on your individual needs. You may have a favorite carrier or a loyalty program you like, but price, convenience, and airports served also come into play. Flexibility and booking terms – Can you change flights if you want to stay longer or get a refund if you have to postpone your trip? – are also factors that help determine which airline is best to fly from Portland to Seattle.

In terms of nonstop flights, Alaska is the most popular. Alaska offers 61 nonstop flights and 719 connecting flights per week. Alaska flies from Portland International Airport (PDX) to Seattle-Tacoma International Airport (SEA) .

Other popular airlines flying from Portland to Seattle are:

Delta offers 48 nonstop flights per week. Delta flies from Portland International Airport (PDX) to Seattle-Tacoma International Airport (SEA) .
Southwest offers 93 connecting flights per week. Southwest flies from Portland International Airport (PDX) to Seattle-Tacoma International Airport (SEA) .
United offers 76 connecting flights per week. United flies from Portland International Airport (PDX) to Seattle-Tacoma International Airport (SEA) .
American offers 9 connecting flights per week. American flies from Portland International Airport (PDX) to Seattle-Tacoma International Airport (SEA) .
Frontier offers 5 connecting flights per week. Frontier flies from Portland International Airport (PDX) to Seattle-Tacoma International Airport (SEA) .

The number of connecting flights refers to distinct flights with at least one stop between Portland and Seattle.

The cheapest round-trip flight from Portland to Seattle recently found on Google Flights was with Alaska from $117. The cheapest one-way flight was with Alaska from $79.

Some of the cheapest round-trip deals we found with different airlines:

The cheapest Alaska flight from Portland to Seattle is $117, flying from Apr 9 to Apr 12.
The cheapest Delta flight from Portland to Seattle is $117, flying from Apr 9 to Apr 12.
The cheapest Southwest flight from Portland to Seattle is $347, flying from Mar 6 to Mar 9.
The cheapest United flight from Portland to Seattle is $266, flying from Mar 7 to Mar 9.
The cheapest American flight from Portland to Seattle is $364, flying from Mar 6 to Mar 9.

Alaska and Delta fly direct from Portland to Seattle.

There are 61 Alaska direct flights from Portland to Seattle per week. Flights are available every day.
There are 48 Delta direct flights from Portland to Seattle per week. Flights are available every day.

Use the Stops filter while searching for flights, to see only nonstop options in your results.

The cheapest last-minute deal between Portland and Seattle at price $417 is offered by Delta from Thu, Jan 29 to Mon, Feb 2.

Alaska and Delta fly direct from Portland to Seattle.

There are 61 Alaska direct flights from Portland to Seattle per week. Flights are available every day.
There are 48 Delta direct flights from Portland to Seattle per week. Flights are available every day.

Use the Stops filter while searching for flights, to see only nonstop options in your results.

There are direct flights from Portland to Seattle on a daily basis.

The cheapest direct (nonstop) round-trip flights between Portland and Seattle start at $117 from Thu, Apr 9 to Sun, Apr 12 with Alaska.

It's easy to find nonstop flights with Google Flights! Once you've searched for flights from Portland to Seattle, just select the nonstop flights only option in the 'Stops’ filter in the search form and view all available direct flights and their prices.

The cheapest business class round-trip flights between Portland and Seattle start at $227 from Thu, Apr 9 to Sun, Apr 12 with Delta.

The cheapest economy class round-trip flights between Portland and Seattle start at $117 from Thu, Apr 9 to Sun, Apr 12.

To book business class trips from Portland to Seattle, look for the default Economy selection at the top, and change it to your desired cabin class such as Premium Economy, Business Class, or First Class. You can then select your departure and arrival dates, consider available options, and book your business travel.

You can also adjust the trip type to view one-way fares.

The best last-minute getaway deal for the next weekend between Portland and Seattle starts at $417 from Thu, Jan 29 to Mon, Feb 2 with Delta.

The cheapest last-minute deal between Portland and Seattle at price $417 is offered by Delta from Thu, Jan 29 to Mon, Feb 2.

To find last-minute flight deals from Portland to Seattle, start by entering the city names, select the desired departure and return dates, and hit the Search button to view flight options.

You can check for last-minute flights for the same day or adjust the trip type to see one-way fares.