Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Portland to Seattle from $56

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to Seattle departing on 1/14. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Deals available from 900+ travel sites.

"This year, momondo is the #1 place for airfares on the internet."
Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.
Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.
Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.
Price Alerts
Price Alerts
Not ready to book? to track prices.

Find the cheapest flights from Portland to Seattle

Cheap round-trip flights

These are some of the best round-trip flight deals from Portland to Seattle that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Portland to Seattle.

Cheap last minute flights

Planning a quick getaway from Portland to Seattle? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Seattle, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from Portland to Seattle

Find recent round-trip train or bus tickets from Portland to Seattle.

All round-trip flight deals to Seattle

The cheapest plane tickets to Seattle found on KAYAK recently.
5:30 pm - 12:19 amPDX-SEA
6h 49m1 stop
9:45 am - 4:35 pmSEA-PDX
6h 50m1 stop
$123Spirit Airlines
Find Deal
水, 1月 22 - 水, 1月 29
5:30 pm - 12:19 amPDX-SEA
6h 49m1 stop
9:45 am - 4:35 pmSEA-PDX
6h 50m1 stop
$135Spirit Airlines
Find Deal
土, 1月 11 - 火, 1月 14
5:15 pm - 6:23 pmPDX-SEA
1h 08mnonstop
5:50 pm - 6:54 pmSEA-PDX
1h 04mnonstop
$137Delta
Find Deal
火, 1月 21 - 火, 1月 28
7:05 am - 8:08 amPDX-SEA
1h 03mnonstop
9:59 pm - 10:54 pmSEA-PDX
0h 55mnonstop
$147Alaska Airlines
Find Deal
月, 1月 13 - 水, 1月 15
2:16 pm - 7:57 pmPDX-SEA
5h 41m1 stop
11:36 am - 12:35 pmSEA-PDX
0h 59mnonstop
$149Alaska Airlines
Find Deal
火, 1月 21 - 火, 1月 28
7:26 pm - 8:43 pmPDX-SEA
1h 17mnonstop
7:45 pm - 8:50 pmSEA-PDX
1h 05mnonstop
$197Delta
Find Deal
日, 1月 5 - 月, 1月 13
7:05 am - 3:10 pmPDX-SEA
8h 05m1 stop
3:25 pm - 7:45 pmSEA-PDX
4h 20m1 stop
$389Southwest
Find Deal
木, 1月 16 - 日, 1月 19
5:45 am - 2:15 pmPDX-SEA
8h 30m1 stop
9:15 am - 4:50 pmSEA-PDX
7h 35m1 stop
$410Southwest
Find Deal
火, 5月 20 - 水, 5月 21
1:34 pm - 12:55 amPDX-SEA
11h 21m1 stop
12:37 pm - 8:53 amSEA-PDX
20h 16m1 stop
$423United Airlines
Find Deal
金, 2月 14 - 日, 2月 16
3:25 pm - 11:20 amPDX-SEA
19h 55m2 stops
12:50 pm - 9:24 amSEA-PDX
20h 34m1 stop
$438United Airlines
Find Deal
火, 1月 21 - 火, 1月 28
5:30 pm - 12:19 amPDX-SEA
6h 49m1 stop
$56Spirit Airlines
Find Deal
火, 1月 14
5:30 pm - 12:19 amPDX-SEA
6h 49m1 stop
$61Spirit Airlines
Find Deal
木, 1月 23
5:15 pm - 6:23 pmPDX-SEA
1h 08mnonstop
$69Delta
Find Deal
水, 1月 22
7:10 am - 8:22 amPDX-SEA
1h 12mnonstop
$79Delta
Find Deal
木, 1月 23
2:40 pm - 7:57 pmPDX-SEA
5h 17m1 stop
$81Alaska Airlines
Find Deal
木, 1月 16
2:40 pm - 9:15 amPDX-SEA
18h 35m1 stop
$87Alaska Airlines
Find Deal
金, 1月 24
5:55 pm - 10:45 pmPDX-SEA
4h 50m1 stop
$225Southwest
Find Deal
月, 3月 24
5:30 am - 11:20 amPDX-SEA
5h 50m1 stop
$248Southwest
Find Deal
日, 3月 23
3:25 pm - 11:20 amPDX-SEA
19h 55m2 stops
$252United Airlines
Find Deal
月, 1月 13
6:10 pm - 11:20 amPDX-SEA
17h 10m2 stops
$282United Airlines
Find Deal
木, 1月 16
5:10 pm - 6:22 pmPDX-SEA
1h 12mnonstop
9:40 am - 10:47 amSEA-PDX
1h 07mnonstop
$277Delta
Find Deal
土, 12月 28 - 月, 1月 13
6:59 pm - 8:02 pmPDX-SEA
1h 03mnonstop
8:03 am - 3:57 pmSEA-PDX
7h 54m1 stop
$279Alaska Airlines
Find Deal
土, 12月 28 - 月, 1月 13
9:18 am - 10:40 amPDX-SEA
1h 22mnonstop
7:25 am - 8:38 amSEA-PDX
1h 13mnonstop
$357Delta
Find Deal
水, 12月 25 - 木, 1月 2
5:00 am - 6:04 amPDX-SEA
1h 04mnonstop
10:01 am - 10:56 amSEA-PDX
0h 55mnonstop
$391Alaska Airlines
Find Deal
金, 12月 27 - 金, 12月 27
6:59 pm - 8:02 pmPDX-SEA
1h 03mnonstop
7:15 pm - 8:11 pmSEA-PDX
0h 56mnonstop
$397Alaska Airlines
Find Deal
金, 12月 27 - 日, 12月 29
5:00 am - 1:11 pmPDX-SEA
8h 11m1 stop
5:55 pm - 4:35 pmSEA-PDX
22h 40m3 stops
$520Spirit Airlines
Find Deal
土, 12月 28 - 月, 1月 13
7:19 pm - 10:23 pmPDX-SEA
27h 04m2 stops
5:45 am - 4:35 pmSEA-PDX
10h 50m1 stop
$531Spirit Airlines
Find Deal
土, 12月 28 - 月, 1月 13
4:05 pm - 8:50 pmPDX-SEA
4h 45m1 stop
10:35 am - 5:05 pmSEA-PDX
6h 30m1 stop
$601Southwest
Find Deal
水, 12月 25 - 木, 1月 2
3:35 pm - 11:30 pmPDX-SEA
7h 55m1 stop
8:30 am - 1:15 pmSEA-PDX
4h 45m1 stop
$650Southwest
Find Deal
金, 12月 27 - 日, 12月 29
9:00 am - 2:15 pmPDX-SEA
5h 15m1 stop
4:30 pm - 11:26 pmSEA-PDX
6h 56m1 stop
$1,153United Airlines
Find Deal
金, 12月 27 - 金, 12月 27
5:15 pm - 6:23 pmPDX-SEA
1h 08mnonstop
9:40 am - 10:47 amSEA-PDX
1h 07mnonstop
$137Delta
Find Deal
火, 1月 21 - 火, 1月 28
7:05 am - 8:08 amPDX-SEA
1h 03mnonstop
9:59 pm - 10:54 pmSEA-PDX
0h 55mnonstop
$147Alaska Airlines
Find Deal
月, 1月 13 - 水, 1月 15
7:05 am - 8:08 amPDX-SEA
1h 03mnonstop
8:45 am - 9:42 amSEA-PDX
0h 57mnonstop
$157Alaska Airlines
Find Deal
月, 1月 13 - 木, 1月 16
9:31 am - 10:29 amPDX-SEA
0h 58mnonstop
10:51 pm - 11:43 pmSEA-PDX
0h 52mnonstop
$187Alaska Airlines
Find Deal
金, 1月 10 - 水, 1月 15
7:26 pm - 8:43 pmPDX-SEA
1h 17mnonstop
7:45 pm - 8:50 pmSEA-PDX
1h 05mnonstop
$197Delta
Find Deal
日, 1月 5 - 月, 1月 13
7:29 pm - 8:38 pmPDX-SEA
1h 09mnonstop
7:45 pm - 8:51 pmSEA-PDX
1h 06mnonstop
$217Delta
Find Deal
月, 3月 24 - 金, 3月 28
5:20 am - 6:29 amPDX-SEA
1h 09mnonstop
11:50 am - 12:56 pmSEA-PDX
1h 06mnonstop
$277Delta
Find Deal
金, 1月 3 - 火, 1月 7
5:15 pm - 6:23 pmPDX-SEA
1h 08mnonstop
7:25 am - 8:32 amSEA-PDX
1h 07mnonstop
$287Delta
Find Deal
金, 1月 10 - 木, 1月 16
7:00 am - 8:05 amPDX-SEA
1h 05mnonstop
11:34 am - 12:35 pmSEA-PDX
1h 01mnonstop
$311Alaska Airlines
Find Deal
土, 1月 4 - 土, 1月 4
7:23 am - 8:31 amPDX-SEA
1h 08mnonstop
7:45 pm - 8:51 pmSEA-PDX
1h 06mnonstop
$317Delta
Find Deal
金, 3月 21 - 金, 3月 28

Spirit Airlines flights from Portland to Seattle

Our best Spirit Airlines deals on Portland to Seattle flight tickets
Spirit Airlines
Jan 22
PDX5:30 pmPortland
6h 49m
1 stop
SEA12:19 amSeattle/Tacoma Intl
Jan 29
SEA9:45 amSeattle/Tacoma Intl
6h 50m
1 stop
PDX4:35 pmPortland
Spirit Airlines
Jan 11
PDX5:30 pmPortland
6h 49m
1 stop
SEA12:19 amSeattle/Tacoma Intl
Jan 14
SEA9:45 amSeattle/Tacoma Intl
6h 50m
1 stop
PDX4:35 pmPortland
Spirit Airlines
Jan 10
PDX5:30 pmPortland
6h 49m
1 stop
SEA12:19 amSeattle/Tacoma Intl
Jan 14
SEA9:45 amSeattle/Tacoma Intl
6h 50m
1 stop
PDX4:35 pmPortland

Delta flights from Portland to Seattle

Our best Delta deals on Portland to Seattle flight tickets
Delta
Jan 21
PDX5:15 pmPortland
1h 08m
SEA6:23 pmSeattle/Tacoma Intl
Jan 28
SEA5:50 pmSeattle/Tacoma Intl
1h 04m
PDX6:54 pmPortland
Delta
Jan 5
PDX7:26 pmPortland
1h 17m
SEA8:43 pmSeattle/Tacoma Intl
Jan 13
SEA7:45 pmSeattle/Tacoma Intl
1h 05m
PDX8:50 pmPortland
Delta
Mar 24
PDX7:29 pmPortland
1h 09m
SEA8:38 pmSeattle/Tacoma Intl
Mar 28
SEA7:45 pmSeattle/Tacoma Intl
1h 06m
PDX8:51 pmPortland

See travel insights to Seattle from

How to get the cheapest flight ticket from Portland to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Seattle?

In general, August is the cheapest month to fly from Portland to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $157. If you don’t want to visit Seattle in August, then you should wait until February to fly from Portland, when ticket prices are also cheap, with an average price of $162.

What is the cheapest day to depart on your flight to Seattle?

On average, the least expensive day to fly to Seattle from Portland is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $176. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Monday is the most expensive day to depart from Portland because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $237.

What is the cheapest time of day to depart on your flight to Seattle?

Flying to Seattle from Portland at noon is the least expensive time of day to depart. momondo users have found prices as low as $196 when looking at flights departing at noon. Flights to Seattle are more costly in the evening, with an average ticket price of $206. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Portland to Seattle/Tacoma Intl flight route?

Fly from Portland to Seattle/Tacoma Intl for the best Portland - Seattle/Tacoma Intl flight prices

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

You are more likely to see cheaper flights to Seattle from Portland when booking 47 days ahead of your departure date. In general, you can expect to find flights to Seattle for around $194 when searching 47 days out. Keep in mind that you might be able to find cheaper flights to Seattle at any time. In fact, our users found flights for as low as $91 in the past 72 hours.

What cabin class options are available on Portland to Seattle/Tacoma Intl flights?

There are 4 cabin classes available to choose from on Portland to Seattle/Tacoma Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Portland to Seattle flights?

You could potentially save up to 18% on your flight if you consider stops on a Portland to Seattle flight.

How have Portland to Seattle flight prices changed over time?

As of December 2024, prices for Portland to Seattle flights are approximately 15% more expensive when compared to flights at the same time last year.

When to book flights from Portland to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from Portland to Seattle according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Portland to Seattle (PDX to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland to Seattle

Best Price Found

$56

Fastest flight time

0h 52m

Direct flights

Every day

Airports in Seattle

1 airport
The best one-way flight to Seattle from Portland in the past 72 hours is $56. The best round-trip flight deal from Portland to Seattle found on momondo in the last 72 hours is $123.
The fastest flight from Portland to Seattle takes 0h 52m
Direct flights go from Portland to Seattle every day.
There is 1 airport near Seattle: Seattle/Tacoma Intl (SEA)

  • How far is Portland to Seattle/Tacoma Intl by plane?

    Seattle/Tacoma Intl is 145.2 mi away from Portland. A reasonable flight in good conditions will take 0h 52m.

  • When did momondo last update prices for flights from Portland Airport to Seattle/Tacoma Intl Airport?

    Prices for flights from Portland Airport to Seattle/Tacoma Intl Airport were last updated today.

  • How many operators does momondo search for flights from Portland Airport to Seattle/Tacoma Intl Airport?

  • How old do you have to be to fly from Portland Airport to Seattle/Tacoma Intl Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Portland Airport to Seattle/Tacoma Intl Airport.

  • What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

    The travel and health documents required for your trip to Seattle/Tacoma Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Seattle/Tacoma Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Portland to Seattle?

  • What is the most popular airline from Portland to Seattle?


Best airlines flying from Portland to Seattle

Compare and see reviews for airlines that fly from Portland to Seattle with momondo
Airline
Rating
Free Cancellation
Price
Alaska AirlinesPriceFrom $113Free CancellationRating
8.0
9,555 reviews
Search Alaska Airlines flights
DeltaPriceFrom $113Free CancellationRating
8.0
8,580 reviews
Search Delta flights
  • Alaska Airlines Flights From Portland to Seattle

    Alaska Airlines is one of the most popular airlines flying from Portland to Seattle, operating 30 flights/week on average for this route. A good Alaska Airlines flight deal for Portland to Seattle starts from $113 round-trip, up to an average price of $203. Our users have rated Alaska Airlines at 8.0/10.

  • Delta Flights From Portland to Seattle

    $113 is the best Delta flight deal from Portland to Seattle found on momondo over the last 72 hours. The average Delta ticket price found was closer to $198, however, with flight time and availability significantly affecting the price. Delta (8.0/10 from 8,580 user reviews) flies into Seattle from Portland 24 times in an average week so prices can vary.


Why use momondo?

Why should I use momondo to find a flight deal from Portland to Seattle?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Portland to Seattle. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Portland to Seattle with flexible booking policies on momondo?

Yes. All flights to Seattle from Portland on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Portland to Seattle?

momondo provides multiple filters to help you find the best flight to Seattle from Portland. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Portland to Seattle right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Portland to Seattle now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Seattle and let you know when they change.


An easier way to manage your Seattle trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
From?
To?
日 12/29
日 1/5
Email me momondo's favorite deals

Find better results for your trip to the United States