Cheap flights from Portland to Seattle (PDX - SEA) from $40

This is the cheapest one-way flight price, found on 9/25. Prices may vary by date and flight preferences.
PDX — SEA
Oct 1 — Oct 81

The best prices from Portland to Seattle/Tacoma Intl are usually found in September or February, booked 50 days in advance, depart on a Tuesday or Wednesday and return on a Sunday

How to find the cheapest flight from Portland (PDX) to Seattle (SEA)

All the information you need to plan the best PDX to SEA flight in 2023: compare Portland to Seattle flight prices with the expected peak season, weather and rainfall in Seattle.

Popular in

November

Cheapest in

September

Round-trip from

$237

One-way from

$59
High demand for flights, 14% potential price rise
Best time to find cheap flights, 16% potential price drop
From Portland to Seattle/Tacoma Intl
One-way flight from Portland to Seattle/Tacoma Intl

PDX - SEA

Price

$237 - $458

SEA

Temperature

41 - 66.2 °F

SEA

Rainfall

0.7 - 6.6 inches

What is the cheapest day to fly round-trip from Portland to Seattle?

Users have found that flying from Portland to Seattle on a Wednesday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

How far in advance should I book a flight from Portland to Seattle?

Find a great deal and save up to 127% by booking at least 50 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Portland to Seattle within the next two weeks, with the cheapest ticket starting at $251.

What is the cheapest month to fly from Portland to Seattle?

Our data shows that September tends to be the cheapest month to fly to Seattle from Portland. Users have commonly found prices around $186 for the month, but tickets can be as low as $71. Due to multiple factors, prepare for potentially higher prices in November.

When is the cheapest time to fly from Portland to Seattle (PDX - SEA)?

When flying from Portland to Seattle, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 41% versus a flight in the afternoon.

Cheap American Airlines flights from Portland to Seattle

Find some of the cheapest American Airlines flights traveling from Portland to Seattle. Come back soon if you're not finding the exact deal you're looking for.

Cheap Spirit Airlines flights from Portland to Seattle

To aid your search, here are some of the cheapest Spirit Airlines flights we've found from Portland to Seattle. Make sure to examine the flight information before completing your reservation.

Cheap Portland to Seattle flights in September & October 2023

The best prices found for PDX to SEA flights for September, October
The lowest fares we've come across on flights traveling from Portland to Seattle in September and October 2023. Check back soon for alternative fares.

Portland to Seattle 2023 flight deals

Cheap flights to Seattle from Portland found for this year
The lowest fares we've come across on flights traveling from Portland to Seattle in September and October 2023. Check back soon for alternative fares.

Non-stop flights to Seattle from Portland

Save time with Portland to Seattle direct flight deals
Take a look at some of the direct flights traveling from Portland to Seattle in the near future. Select from other flights from Portland to Seattle by using the search form above.

Portland to Seattle flights leaving soon

Late deals on return flights to Seattle from Portland, departing today and this week
Book one of these great deals on flights from Portland to Seattle. To prevent any unwanted surprises, users should verify their flight info before booking.

One-way flights to Seattle from Portland

The cheapest one-way flights from Portland to Seattle
Users traveling one-way from Portland to Seattle can select one of these great deals. Those seeking round-trip flights from Portland to Seattle should utilize the search form at the the top of the page.

Find flights from Portland to Seattle within your budget

Use the slider to find flights from Portland to Seattle that fit your budget.

Fly from

Any airport

Fly to

Any airport

Budget

$113 - $322

Route

Depart

Return

Price

PortlandSeattle/Tacoma Intl

PDX - SEA

PDXSEA

Portland

Tue 10/17

Nonstop1h 03m

Seattle/Tacoma Intl

Tue 10/17

Nonstop0h 55m

PortlandSeattle/Tacoma Intl

PDX - SEA

PDXSEA

Portland

Wed 10/25

Nonstop1h 05m

Seattle/Tacoma Intl

Wed 11/1

Nonstop0h 57m

PortlandSeattle/Tacoma Intl

PDX - SEA

PDXSEA

Portland

Sat 10/7

1 stop7h 35m

Seattle/Tacoma Intl

Sun 10/8

1 stop10h 09m

PortlandSeattle/Tacoma Intl

PDX - SEA

PDXSEA

Portland

Fri 10/20

Nonstop1h 10m

Seattle/Tacoma Intl

Sat 10/21

Nonstop0h 59m

PortlandSeattle/Tacoma Intl

PDX - SEA

PDXSEA

Portland

Sat 10/21

Nonstop1h 04m

Seattle/Tacoma Intl

Sun 10/22

Nonstop0h 59m

PortlandSeattle/Tacoma Intl

PDX - SEA

PDXSEA

Portland

Sun 11/19

Nonstop1h 01m

Seattle/Tacoma Intl

Sun 11/19

Nonstop0h 56m

PortlandSeattle/Tacoma Intl

PDX - SEA

PDXSEA

Portland

Tue 10/10

1 stop13h 05m

Seattle/Tacoma Intl

Fri 10/20

1 stop14h 01m

PortlandSeattle/Tacoma Intl

PDX - SEA

PDXSEA

Portland

Tue 10/10

1 stop13h 05m

Seattle/Tacoma Intl

Fri 10/20

3 stops23h 42m

PortlandSeattle/Tacoma Intl

PDX - SEA

PDXSEA

Portland

Fri 10/20

1 stop8h 30m

Seattle/Tacoma Intl

Sat 10/21

1 stop13h 05m

Flights are sorted by cheapest first

Deals found on 9/25

Reviews of airlines servicing Seattle

Peruse reviews from past customers who have flown with American Airlines, Spirit Airlines and Alaska Airlines from Portland to Seattle to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.1
Very good
1,393 reviews

Food

7.2

Entertainment

7.2

Comfort

8.0

Boarding

8.3

Overall

8.1

Crew

8.6

Reviews

1 / 10

Was forced to check my bag, didn’t want to but really upset when got on the plane and nearly all the overheads were empty. And then even more upset when they lost my bag! So far it’s been 5 hours and they have no clue where my bag went. Don’t force me to check a normal carry on when there’s more than enough room!

Alaska Airlines
8.1
Very good
1,393 reviews
Alaska Airlines
8.1
Very good
1,393 reviews

Food

7.2

Entertainment

7.2

Comfort

8.0

Boarding

8.3

Overall

8.1

Crew

8.6

Reviews

1 / 10

Was forced to check my bag, didn’t want to but really upset when got on the plane and nearly all the overheads were empty. And then even more upset when they lost my bag! So far it’s been 5 hours and they have no clue where my bag went. Don’t force me to check a normal carry on when there’s more than enough room!

Delta
7.9
Good
3,021 reviews
Alaska Airlines
8.1
Very good
1,393 reviews

Food

7.2

Entertainment

7.2

Comfort

8.0

Boarding

8.3

Overall

8.1

Crew

8.6

Reviews

1 / 10

Was forced to check my bag, didn’t want to but really upset when got on the plane and nearly all the overheads were empty. And then even more upset when they lost my bag! So far it’s been 5 hours and they have no clue where my bag went. Don’t force me to check a normal carry on when there’s more than enough room!

Southwest
7.6
Good
1,521 reviews
Alaska Airlines
8.1
Very good
1,393 reviews

Food

7.2

Entertainment

7.2

Comfort

8.0

Boarding

8.3

Overall

8.1

Crew

8.6

Reviews

1 / 10

Was forced to check my bag, didn’t want to but really upset when got on the plane and nearly all the overheads were empty. And then even more upset when they lost my bag! So far it’s been 5 hours and they have no clue where my bag went. Don’t force me to check a normal carry on when there’s more than enough room!

United Airlines
7.4
Good
1,890 reviews
Alaska Airlines
8.1
Very good
1,393 reviews

Food

7.2

Entertainment

7.2

Comfort

8.0

Boarding

8.3

Overall

8.1

Crew

8.6

Reviews

1 / 10

Was forced to check my bag, didn’t want to but really upset when got on the plane and nearly all the overheads were empty. And then even more upset when they lost my bag! So far it’s been 5 hours and they have no clue where my bag went. Don’t force me to check a normal carry on when there’s more than enough room!

American Airlines
7.2
Good
2,635 reviews
Alaska Airlines
8.1
Very good
1,393 reviews

Food

7.2

Entertainment

7.2

Comfort

8.0

Boarding

8.3

Overall

8.1

Crew

8.6

Reviews

1 / 10

Was forced to check my bag, didn’t want to but really upset when got on the plane and nearly all the overheads were empty. And then even more upset when they lost my bag! So far it’s been 5 hours and they have no clue where my bag went. Don’t force me to check a normal carry on when there’s more than enough room!

Related info for your journey

Useful info, stats and facts about Portland to Seattle flights.

What airports do I use to fly from Portland to Seattle?

If you book a flight from Portland to Seattle, you will be flying from Portland to Seattle/Tacoma Intl. Flights to Seattle/Tacoma Intl (SEA) from Portland (PDX) take 0h 53m for a nonstop flight. There are 58 flights from Portland to Seattle per day from 2 airlines.

Can I find flights from Portland to Seattle for under $200 on Cheapflights?

Yes, there are multiple flights from Portland to Seattle for under $200. The cheapest flight booked recently is on Alaska Airlines for just $113, but on average you can expect to pay $167.

Are there nonstop flights from Portland to Seattle for under $200 on Cheapflights?

Cheapflights has at least 19 direct flights from Portland to Seattle under $200. A good price for a nonstop flight from Portland to Seattle is less than $237.

Are there last-minute flights available from Portland to Seattle for under $200?

There are currently 20+ open flights from Portland to Seattle within the next 7 days for less than $200.

What days are nonstop flights available from Portland to Seattle?

Nonstop flights are available for this route on the following days: Sunday, Tuesday, Wednesday, Thursday, Friday, Saturday.

How popular is this Portland to Seattle flight route?

How many flights depart from Portland to Seattle on average per day?

Per day, 116 flights depart from Portland to Seattle on average.
Early Morning (Midnight to 6am) - 12% of flight departures
Morning (6am - Noon) - 41% of flight departures
Afternoon (Noon - 6pm) - 33% of flight departures
Evening (6pm - Midnight) - 15% of flight departures

How long is the flight from Portland to Seattle?

There are many flights that can get you from Portland to Seattle in 1h 03m. Fly via Alaska Airlines, Delta, or Spirit Airlines to get the fastest option. The distance from Portland to Seattle is about 130 mi. This flight may include one or multiple stops.

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

Cheapflights users have booked flights from Portland to Seattle round-trip from $113. Other airlines that can offer you cheap pricing are Delta, from $118, and Spirit Airlines, from $129. Alaska Airlines is currently priced 39% below the average price you’ll pay for this route.

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

One-way options have recently been found by users for as low as $40 on Spirit Airlines. Other airlines that offer cheap prices include Frontier from $56 and Alaska Airlines from $59 one-way.

What are the most reliable airlines from Portland to Seattle?

No one likes to see their flight delayed. When booking a flight from Portland to Seattle consider choosing Japan Airlines (97%), Air France (94%) or Horizon Air (92%) as they are the most reliable in getting you off to your destination on time.

What are the cheapest flights from Portland to Seattle?

While on average a flight from Portland to Seattle is generally $1,017, our data shows the cheapest flight currently is $98. When looking at the most popular route, (Portland - Seattle/Tacoma Intl), you can expect to pay $118 for that flight.

What does PDX to SEA mean?

PDX and SEA are unique codes to identify airports used in the aviation industry. They are defined by IATA (International Air Transport Association) and are commonly called IATA codes. PDX to SEA refers to a flight route from Portland Airport to Seattle/Tacoma Intl Airport.

Alternative routes for Portland to Seattle

See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from Portland to Seattle

The chart below displays the airlines Cheapflights users traveling from Portland to Seattle choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$89Average$248FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Alaska AirlinesCheapest$118Average$197FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights

Hourly flight availability from Portland to Seattle

See what time of day planes typically take off from Portland to Seattle
6%of flight departuresEarly morningMidnight to 6 am
43%of flight departuresMorning6 am to noon
29%of flight departuresAfternoonNoon to 6 pm
22%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

Weekly flight availability from Portland to Seattle

See how many times per day planes take to the skies headed from Portland to Seattle
Sunday59daily flights
Monday69daily flights
Tuesday49daily flights
Wednesday54daily flights
Thursday56daily flights
Friday68daily flights
Saturday55daily flights

Fly with Cheapflights

What makes Cheapflights the go-to destination for all your flight needs

How does Cheapflights help users find flights from Portland to Seattle?

Cheapflights helps you search for flights from Portland to Seattle via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Portland to Seattle?

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 Seattle from Portland.

Can Cheapflights find flights from Portland to Seattle with no change fees?

Yes, we can. To see specific flights from Portland to Seattle with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Portland to Seattle become cheaper?

Yes, Cheapflights has a feature called Price Alert, which essentially offers users the ability to be notified when flight prices change. Track prices for your flight to Seattle from Portland today and book when you’re ready!

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