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Cheap flights from Seattle to Portland from £39

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 19/3. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — PDX
26 Feb — 5 Mrz1
1 adult

Cheap flight deals from Seattle to Portland

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Portland (PDX). 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 21 Februar 2025.

Round-trip from

£77

One-way from

£39

Popular in

July

Cheapest in

October

Average price

£140
Delta
  • Delta
  • 7/4-14/4
  • Nonstop
  • 2h 07m total
  • Seattle to Portland
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Delta
  • Delta
  • 19/3
  • Nonstop
  • 1h 11m total
  • Seattle to Portland
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (£20 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£3 potential savings vs. average return price).
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Average for round-trip flights in February 2025
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Find flight deals from Seattle to Portland

Cheapest flights from Seattle to Portland
Explore the most affordable flight options available from Seattle to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 Februar 2025.

Mo 7/407:20SEA - PDX
Nonstop1h 07mDelta
Mo 14/419:50PDX - SEA
Nonstop1h 00mDelta
Deal found 21/2£77
Mi 14/520:00SEA - PDX
Nonstop0h 56mAlaska Airlines
Mi 14/522:00PDX - SEA
Nonstop0h 48mAlaska Airlines
Deal found 21/2£128
Di 27/506:30SEA - PDX
Nonstop0h 48mHawaiian Airlines
Di 27/509:30PDX - SEA
Nonstop1h 01mHawaiian Airlines
Deal found 20/2£135
Mo 10/305:45SEA - PDX
1 stop4h 30mSouthwest
Mo 10/317:55PDX - SEA
1 stop4h 50mSouthwest
Deal found 20/2£235
Di 8/415:24SEA - PDX
1 stop21h 15mUnited Airlines
Di 15/416:18PDX - SEA
2 stops19h 31mUnited Airlines
Deal found 20/2£341
Fr 4/421:50SEA - PDX
2 stops13h 20mMultiple Airlines
Fr 11/413:45PDX - SEA
2 stops7h 49mMultiple Airlines
Deal found 20/2£673

Find flights from Seattle to Portland within your budget

Customise your flight search to find flights from Seattle to Portland 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 858,174 searches. Data last updated 21 Februar 2025.

Fly from

Seattle

Fly to

Portland

Route

Depart

Return

Price

SeattlePortland

SEA - PDX

SEAPDX

Seattle/Tacoma Intl

Mo 7/4

07:20-08:27

Nonstop1h 07m

Portland

Mo 14/4

07:23-08:24

Nonstop1h 01m

£77

SeattlePortland

SEA - PDX

SEAPDX

Seattle/Tacoma Intl

Mi 14/5

20:00-20:56

Nonstop0h 56m

Portland

Mi 14/5

22:00-22:48

Nonstop0h 48m

£128

SeattlePortland

SEA - PDX

SEAPDX

Seattle/Tacoma Intl

Di 27/5

06:30-07:18

Nonstop0h 48m

Portland

Di 27/5

09:30-10:31

Nonstop1h 01m

£135

SeattlePortland

SEA - PDX

SEAPDX

Seattle/Tacoma Intl

Mo 10/3

05:45-10:15

1 stop4h 30m

Portland

Mo 10/3

17:55-22:45

1 stop4h 50m

£235

SeattlePortland

SEA - PDX

SEAPDX

Seattle/Tacoma Intl

Di 8/4

15:24-12:39

1 stop21h 15m

Portland

Di 15/4

16:18-11:49

2 stops19h 31m

£341

SeattlePortland

SEA - PDX

SEAPDX

Seattle/Tacoma Intl

Fr 4/4

21:50-11:10

2 stops13h 20m

Portland

Fr 11/4

13:45-21:34

2 stops7h 49m

£673

SeattlePortland

SEA - PDX

SEAPDX

Seattle/Tacoma Intl

Mi 19/3

07:20-08:31

Nonstop1h 11m

£39

SeattlePortland

SEA - PDX

SEAPDX

Seattle/Tacoma Intl

Di 20/5

11:21-13:50

1 stop2h 29m

£73

SeattlePortland

SEA - PDX

SEAPDX

Seattle/Tacoma Intl

Mi 14/5

07:00-22:53

2 stops15h 53m

£209

Flights are sorted by cheapest return flights first.

Deals found on 20/2

Best time to book a flight from Seattle to Portland

Have a flexible travel schedule? Discover the best time to fly to Portland from Seattle with our price prediction graph.
Estimated return 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 Seattle to Portland

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

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

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

The price you pay for your flight from Seattle to Portland may vary depending on when you book. For the best chance of a lower fare, look to book 37 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 Seattle to Portland?

Currently, January is the cheapest month in which you can book a flight from Seattle to Portland (average of £736). Flying from Seattle to Portland in July is currently the most expensive (average of £1,048). 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 SEA to PDX?

Find hourly flight availability from Seattle to Portland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 21 Februar 2025.

When flying from Seattle to Portland, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Seattle to Portland

Explore weekly flight availability from Seattle to Portland. 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 21 Februar 2025.

The most flights from SEA to PDX are scheduled on a Friday (77 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (51 on average).

Rainfall in Portland by month

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

In terms of precipitation, rainfall in Portland ranges from 18.0 - 142.0 inches per month. November is typically the wettest month, when rainfall can reach 142.0 mm. July is typically the driest time to visit Portland when rainfall is around 18.0 mm.

Temperature in Portland by month

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

If weather is an important factor for your trip to Portland, 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 21.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 5.0 C).

Reviews of airlines servicing Portland

Get insights into the airlines that provide service to Portland. 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 Portland. Reviews last updated 21 Februar 2025.
Peruse reviews from past customers who have flown with Southwest, Alaska Airlines and Delta from Seattle to Portland to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very Good
4,401 reviews
Check prices

Crew

8.7

Food

7.1

Comfort

8.1

Overall

8.1

Boarding

8.2

Entertainment

7.6

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
4,401 reviews
Southwest
8.1
Very Good
4,401 reviews
Check prices

Crew

8.7

Food

7.1

Comfort

8.1

Overall

8.1

Boarding

8.2

Entertainment

7.6

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
4,401 reviews
Check prices

Crew

8.7

Food

7.1

Comfort

8.1

Overall

8.1

Boarding

8.2

Entertainment

7.6

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
8,213 reviews
Southwest
8.1
Very Good
4,401 reviews
Check prices

Crew

8.7

Food

7.1

Comfort

8.1

Overall

8.1

Boarding

8.2

Entertainment

7.6

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
2,316 reviews
Southwest
8.1
Very Good
4,401 reviews
Check prices

Crew

8.7

Food

7.1

Comfort

8.1

Overall

8.1

Boarding

8.2

Entertainment

7.6

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
8,759 reviews
Southwest
8.1
Very Good
4,401 reviews
Check prices

Crew

8.7

Food

7.1

Comfort

8.1

Overall

8.1

Boarding

8.2

Entertainment

7.6

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 Seattle to Portland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How popular is this Seattle to Portland flight route?

    This flight path from Seattle/Tacoma Intl to Portland was viewed by 5 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 Seattle to Portland round-trip?

    Delta, at £77, was found to be the cheapest airline from Seattle to Portland.Alternate airlines flying return to your destination include Alaska Airlines and Hawaiian Airlines. Users have found that Delta is 47% cheaper than the other options available to this destination.

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

    £39 is the cheapest one-way deal found within the past few days, from Delta. You may also be able to find cheap deals on Alaska Airlines and United Airlines, with prices starting from £73 and £209, respectively.

  • What are the most reliable airlines from Seattle to Portland?

    Before booking your flight to Portland from Seattle, check out the most reliable airlines to get you to your destination on time: Air France (92%), KLM (85%), Aeromexico( 84%).

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Seattle to Portland (average of £736). Flying from Seattle to Portland in July is currently the most expensive (average of £1,048). 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

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Cheapflights does show flights with no change fees to all users. To see these options for flights from Seattle to Portland, users can toggle the no change fees filter when performing a flight search.

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