Cheap flights from Portland to Seattle

Flights overview

Useful information for finding cheap flights from Portland to Seattle and booking your next trip
Cheapest round-trip flights $207
Delta Nonstop 2 hr Sat, May 30 — Sun, May 31
The cheapest round-trip flight from Portland to Seattle is currently $207
Cheapest one-way flight $129
Delta Nonstop 2 hr Wed, May 27
The cheapest one-way flight from Portland to Seattle is currently $129
Last-minute weekend getaway $437
Alaska Nonstop 2 hr Sat, May 9 — Sun, May 10
The cheapest last-minute weekend getaway from Portland to Seattle is currently $437
Cheapest business class flights $337
Alaska 1 stop 13 hr Sat, May 30 — Sun, May 31
The cheapest business class round-trip flight from Portland to Seattle is currently $337
Fastest flight 53 min The fastest nonstop flight from Portland to Seattle takes 53 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 June.
November
Cheapest
Typical prices: $75–390
June
Most expensive
Typical prices: $215–345

Popular airlines from Portland to Seattle

  • Alaska
    Nonstop
    from $207
    Typical price: $135–350
    80 weekly nonstop flights
    PDX - SEA Every day
    871 weekly connecting flights
    PDX - SEA Every day
  • Delta
    Nonstop
    from $207
    Typical price: $115–335
    55 weekly nonstop flights
    PDX - SEA Every day
  • United
    from $457
    Typical price: $285–780
    125 weekly connecting flights
    PDX - SEA Every day
  • Southwest
    from $451
    Typical price: $310–560
    100 weekly connecting flights
    PDX - SEA Every day
  • American
    from $443
    Typical price: $465–1,050
    18 weekly connecting flights
    PDX - SEA Every day
  • Frontier
    Typical price: $145–330
    12 weekly connecting flights
    PDX - SEA Every Mon, Thu, Fri, Sat, 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 3 hr 114 mi

Popular airports near Seattle

  • Seattle-Tacoma International Airport (SEA)
    Seattle United States 18 min 11 mi
  • Portland International Airport (PDX)
    Portland United States 2 hr 44 min 140 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

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 Delta from $207. The cheapest one-way flight was with Delta from $129.

Some of the cheapest round-trip deals we found with different airlines:
  • The cheapest Alaska flight from Portland to Seattle is $207, flying from May 30 to May 31.
  • The cheapest Delta flight from Portland to Seattle is $207, flying from May 30 to May 31.
  • The cheapest United flight from Portland to Seattle is $457, flying from May 30 to Jun 1.
  • The cheapest Southwest flight from Portland to Seattle is $451, flying from Jun 4 to Jun 7.
  • The cheapest American flight from Portland to Seattle is $443, flying from May 28 to Jun 1.
The cheapest round-trip flight from Portland to Seattle starts at $207 from Sat, May 30 to Sun, May 31. The cheapest one-way flight starts at $129 and departs on Wed, May 27.
53 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 80 nonstop flights and 871 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 55 nonstop flights per week. Delta flies from Portland International Airport (PDX) to Seattle-Tacoma International Airport (SEA) .
  • United offers 125 connecting flights per week. United flies from Portland International Airport (PDX) to Seattle-Tacoma International Airport (SEA) .
  • Southwest offers 100 connecting flights per week. Southwest flies from Portland International Airport (PDX) to Seattle-Tacoma International Airport (SEA) .
  • American offers 18 connecting flights per week. American flies from Portland International Airport (PDX) to Seattle-Tacoma International Airport (SEA) .
  • Frontier offers 12 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 Delta from $207. The cheapest one-way flight was with Delta from $129.

Some of the cheapest round-trip deals we found with different airlines:
  • The cheapest Alaska flight from Portland to Seattle is $207, flying from May 30 to May 31.
  • The cheapest Delta flight from Portland to Seattle is $207, flying from May 30 to May 31.
  • The cheapest United flight from Portland to Seattle is $457, flying from May 30 to Jun 1.
  • The cheapest Southwest flight from Portland to Seattle is $451, flying from Jun 4 to Jun 7.
  • The cheapest American flight from Portland to Seattle is $443, flying from May 28 to Jun 1.
Alaska and Delta fly direct from Portland to Seattle.
  • There are 80 Alaska direct flights from Portland to Seattle per week. Flights are available every day.
  • There are 55 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 $437 is offered by Alaska from Sat, May 9 to Sun, May 10.
Alaska and Delta fly direct from Portland to Seattle.
  • There are 80 Alaska direct flights from Portland to Seattle per week. Flights are available every day.
  • There are 55 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 $207 from Sat, May 30 to Sun, May 31 with Delta.
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 $337 from Sat, May 30 to Sun, May 31 with Alaska.
The cheapest economy class round-trip flights between Portland and Seattle start at $207 from Sat, May 30 to Sun, May 31.
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 $437 from Sat, May 9 to Sun, May 10 with Alaska.
The cheapest last-minute deal between Portland and Seattle at price $437 is offered by Alaska from Sat, May 9 to Sun, May 10.
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.

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Popular trips from Portland

  1. Los Angeles
    $82
    May 30 — Jun 1
    Nonstop 2 hr 43 min Frontier
  2. Vancouver
    $295
    Jul 24 — Jul 26
    Nonstop 1 hr 18 min Air Canada
  3. Boston
    $217
    May 23 — May 25
    1 stop 7 hr 28 min American
  4. London
    $914
    Aug 27 — Aug 30
    1 stop 12 hr 25 min Icelandair

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