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$49+ Cheap flights from Portland to Seattle (PDX - SEA)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/23. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SEA
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
1 adult, Economy
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The best prices from Portland to Seattle/Tacoma Intl are usually found in August or January, booked 47 days in advance, depart on a Friday or Thursday and return on a Tuesday

Cheap flight deals from Portland to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$115
(Cheapflightsfares)

One-way from

$49
(Cheapflightsfares)

Popular in

June

Cheapest in

August

Average price

$217

Good round-trip deal

$500 or less

Good one-way deal

$209 or less
Provider with most accurate pricing for Portland-Seattle/Tacoma Intl flight deals.
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Provider most trusted by Cheapflights users for Portland-Seattle/Tacoma Intl flights.
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From Portland to Seattle/Tacoma Intl
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One-way flight from Portland to Seattle/Tacoma Intl
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Highest demand for flights based on searches. 7% potential increase in price ($16 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($4 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Price to beat on a round-trip flight from Portland to Seattle/Tacoma Intl.
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Price to beat on a one-way flight from Portland to Seattle/Tacoma Intl.
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Find flight deals from Portland to Seattle

Cheapest flights from Portland to Seattle
Explore the most affordable flight options available from Portland to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 20, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/92:33 pmPDX - SEA
1 stop5h 28mSpirit Airlines
Tue 4/1512:30 pmSEA - PDX
1 stop5h 35mSpirit Airlines
Deal found 2/20$115
This Delta deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/185:10 pmPDX - SEA
Nonstop1h 04mDelta
Tue 3/259:41 amSEA - PDX
Nonstop1h 06mDelta
Deal found 2/20$137
This Alaska Airlines deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/135:45 amPDX - SEA
Nonstop1h 02mAlaska Airlines
Thu 3/138:05 amSEA - PDX
Nonstop0h 53mAlaska Airlines
Deal found 2/19$151
This Hawaiian Airlines deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/142:33 pmPDX - SEA
1 stop4h 18mHawaiian Airlines
Wed 5/2111:21 amSEA - PDX
1 stop2h 29mHawaiian Airlines
Deal found 2/20$183
This Kiwi.com deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/236:25 amPDX - SEA
Nonstop0h 48mMultiple Airlines
Sat 3/299:50 amSEA - PDX
1 stop6h 02mMultiple Airlines
Deal found 2/20$259
This Southwest deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/54:20 pmPDX - SEA
1 stop6h 45mSouthwest
Sun 6/86:15 amSEA - PDX
1 stop6h 00mSouthwest
Deal found 2/19$411
This United Airlines deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/94:18 pmPDX - SEA
2 stops19h 31mUnited Airlines
Tue 4/159:10 amSEA - PDX
1 stop15h 20mUnited Airlines
Deal found 2/20$450

Find flights from Portland to Seattle within your budget

Customize your flight search to find flights from Portland to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 20, 2025.

Fly from

Portland

Fly to

Seattle

Route

Depart

Return

Price

PortlandSeattle

PDX - SEA

PDXSEA

Portland

Wed 4/9

2:33 pm-8:01 pm

1 stop5h 28m

Seattle/Tacoma Intl

Tue 4/15

12:30 pm-6:05 pm

1 stop5h 35m

$115

PortlandSeattle

PDX - SEA

PDXSEA

Portland

Tue 3/18

5:10 pm-6:14 pm

Nonstop1h 04m

Seattle/Tacoma Intl

Tue 3/25

9:41 am-10:47 am

Nonstop1h 06m

$137

PortlandSeattle

PDX - SEA

PDXSEA

Portland

Wed 5/14

2:33 pm-6:51 pm

1 stop4h 18m

Seattle/Tacoma Intl

Wed 5/21

9:00 am-9:53 am

Nonstop0h 53m

$160

PortlandSeattle

PDX - SEA

PDXSEA

Portland

Wed 5/7

10:10 pm-2:51 pm

1 stop16h 41m

Seattle/Tacoma Intl

Tue 5/13

9:00 am-9:56 am

Nonstop0h 56m

$170

PortlandSeattle

PDX - SEA

PDXSEA

Portland

Sun 3/23

6:25 am-7:13 am

Nonstop0h 48m

Seattle/Tacoma Intl

Sat 3/29

9:50 am-3:52 pm

1 stop6h 02m

$259

PortlandSeattle

PDX - SEA

PDXSEA

Portland

Thu 3/20

9:05 am-2:10 pm

1 stop5h 05m

Seattle/Tacoma Intl

Thu 3/27

11:40 am-4:25 pm

1 stop4h 45m

$445

PortlandSeattle

PDX - SEA

PDXSEA

Portland

Wed 4/9

4:18 pm-11:49 am

2 stops19h 31m

Seattle/Tacoma Intl

Tue 4/15

9:10 am-12:30 am

1 stop15h 20m

$450

PortlandSeattle

PDX - SEA

PDXSEA

Portland

Mon 2/24

3:43 pm-11:24 pm

1 stop7h 41m

Seattle/Tacoma Intl

Tue 2/25

12:43 am-9:44 pm

1 stop21h 01m

$1,091

PortlandSeattle

PDX - SEA

PDXSEA

Portland

Sun 3/23

6:25 am-7:13 am

Nonstop0h 48m

$49

PortlandSeattle

PDX - SEA

PDXSEA

Portland

Tue 4/22

2:33 pm-8:01 pm

1 stop5h 28m

$58

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Showing 1-10 of 17 results
1
2

Compare providers for flights from Portland to Seattle

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Portland to Seattle in February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
Trip.comPrice Accuracy1 starTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*2 stars
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Portland-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Portland-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Portland-Seattle flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Portland-Seattle flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Portland-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Portland to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Portland with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Portland to Seattle

Get recent, data-driven insights about flights from Portland to Seattle including ideal travel times, pricing trends, and more.

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

Use this chart to determine the optimal time to book a round-trip flight from Portland to Seattle. Price data was last updated on February 14, 2025.

The price you pay for your flight from Portland to Seattle may vary depending on when you book. For the best chance of a lower fare, look to book 47 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Portland to Seattle?

Currently, January is the cheapest month in which you can book a flight from Portland to Seattle (average of $238). Flying from Portland to Seattle in July is currently the most expensive (average of $411). 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 PDX to SEA?

Find hourly flight availability from Portland to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 20, 2025.

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 51% versus a flight at noon.

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

Use this chart to determine the cheapest time to fly round-trip from Portland to Seattle. Price data was last updated on February 16, 2025.

Travelers seeking maximum savings on their Portland to Seattle flight should consider departing on Friday evenings when fares are most often at their lowest. Saturday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Portland to Seattle

Explore weekly flight availability from Portland to Seattle. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated February 20, 2025.

The most flights from PDX to SEA are scheduled on a Thursday (74 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (46 on average).

Rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Seattle ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.

Temperature in Seattle by month

Plan your trip to Seattle by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated February 20, 2025.
Peruse reviews from past customers who have flown with Southwest, Alaska Airlines and Delta 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.
Southwest
8.1
Very good
4,411 reviews

Crew

8.7

Overall

8.1

Boarding

8.2

Entertainment

7.6

Food

7.1

Comfort

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Southwest
8.1
Very good
4,411 reviews
Southwest
8.1
Very good
4,411 reviews

Crew

8.7

Overall

8.1

Boarding

8.2

Entertainment

7.6

Food

7.1

Comfort

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Alaska Airlines
8.0
Very good
9,697 reviews
Southwest
8.1
Very good
4,411 reviews

Crew

8.7

Overall

8.1

Boarding

8.2

Entertainment

7.6

Food

7.1

Comfort

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Delta
8.0
Very good
8,219 reviews
Southwest
8.1
Very good
4,411 reviews

Crew

8.7

Overall

8.1

Boarding

8.2

Entertainment

7.6

Food

7.1

Comfort

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Hawaiian Airlines
7.9
Good
2,317 reviews
Southwest
8.1
Very good
4,411 reviews

Crew

8.7

Overall

8.1

Boarding

8.2

Entertainment

7.6

Food

7.1

Comfort

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

United Airlines
7.4
Good
8,765 reviews
Southwest
8.1
Very good
4,411 reviews

Crew

8.7

Overall

8.1

Boarding

8.2

Entertainment

7.6

Food

7.1

Comfort

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Related info for your journey

Find useful and relevant information for your journey from Portland to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • 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 48m for a nonstop flight. There are 56 flights from Portland to Seattle per day from 3 airlines.

  • How popular is this Portland to Seattle flight route?

    The Portland to Seattle/Tacoma Intl flight path was viewed by 285 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    Cheapflights users have booked flights from Portland to Seattle round-trip from $115. Other airlines that can offer you cheap pricing are Delta, from $137, and Alaska Airlines, from $151. Spirit Airlines is currently priced 40% 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 $49 on Sun Country Air. Other airlines that offer cheap prices include Delta from $69 and Spirit Airlines from $70 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 Aeromexico (98%), Singapore Airlines (91%) or Korean Air (89%) 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 $1,223, our data shows the cheapest flight currently is $103. When looking at the most popular route, (Portland - Seattle/Tacoma Intl), you can expect to pay $116 for that flight.

  • Can I find deals for flights from Portland to Seattle that include hotel bookings?

    Yes. In addition to deals on Portland to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Portland to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to Seattle.

  • Can I find deals for business class flights from Portland to Seattle?

    Yes. Cheapflights offers flight deals from Portland to Seattle 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 Portland to Seattle?

    Currently, January is the cheapest month in which you can book a flight from Portland to Seattle (average of $238). Flying from Portland to Seattle in July is currently the most expensive (average of $411). 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

Traveling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
SeaTac
Tukwila
Renton
Tacoma
Lacey
Ocean Shores
Leavenworth
Olympia
Federal Way
Centralia
Marysville
Cle Elum
Mukilteo
Aberdeen
Lakewood
Issaquah
Shoreline
Lynnwood
Shelton
Silverdale

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Portland to Seattle

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Portland to Seattle

Discover the top 2 airlines that operate flights from Portland to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$106Average$197FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$116Average$208FlexibilityNo cancel feeOn-time75%
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