$159 Cheap United flights from Portland to Seattle (PWM to SEA)

Find The Best Day To Fly from Portland to Seattle

Amazing United PWM to SEA Flight Deals

The cheapest flights to Seattle - Tacoma Intl. found within the past 7 days were $321 round trip and $159 one way. Prices and availability subject to change. Additional terms may apply.

Wed, Oct 1 - Mon, Oct 6
PWM
Portland
SEA
Seattle
$321 Roundtrip, found 2 days ago
$321
Roundtrip
found 2 days ago
Select United flight, departing Wed, Oct 1 from Portland to Seattle, returning Mon, Oct 6, priced at $321 found 2 days ago
Wed, Oct 1 - Mon, Oct 6
PWM
Portland
SEA
Seattle
$349 Roundtrip, found 2 days ago
$349
Roundtrip
found 2 days ago
Select United flight, departing Wed, Oct 1 from Portland to Seattle, returning Mon, Oct 6, priced at $349 found 2 days ago
Wed, Sep 3 - Mon, Sep 8
PWM
Portland
SEA
Seattle
$351 Roundtrip, found 1 day ago
$351
Roundtrip
found 1 day ago
Select United flight, departing Wed, Sep 3 from Portland to Seattle, returning Mon, Sep 8, priced at $351 found 1 day ago
Wed, Sep 3 - Mon, Sep 8
PWM
Portland
SEA
Seattle
$356 Roundtrip, found 1 day ago
$356
Roundtrip
found 1 day ago
Select United flight, departing Wed, Sep 3 from Portland to Seattle, returning Mon, Sep 8, priced at $356 found 1 day ago

Frequently asked questions

Can I catch a flight from Portland Intl. Jetport to SEA right now?
Be sure to check out our Covid-19 Travel Advisor to learn if there are any present travel advice reports and quarantine requirements in place in Sea-Tac Airport when flying from PWM.
What terminal is United Airlines at Portland Intl. Jetport Airport (PWM)?
If you’re booked with United Airlines from PWM to Seattle - Tacoma Intl. Airport (SEA), you might be able to find out the terminal information once you’re issued with your boarding pass. If not, consult your airline.
Are there United Airlines non-stop flights from PWM to SEA?
Be ready for a stopover when traveling from PWM to Sea-Tac Airport, as United Airlines doesn’t operate nonstop flights on this route. While waiting for your connection, you might like to purchase a newspaper or an interesting magazine from the airport bookstore to make the time go quicker.
How long is a United Airlines flight from PWM to SEA?
Depending on good weather and no delays, your United Airlines flight from PWM to SEA should take approximately 8 hours and 8 minutes. That means you’ve got ample time to order your favorite drink, get some sleep and review your travel itinerary before you touch down.
How many direct and indirect flights does United Airlines fly from PWM to SEA?
United Airlines is currently operating roughly 3 flights per day from Portland Intl. Jetport to SEA.
If I am not able to travel due to COVID-19, can I change my booking to a later date?
For more info about changing your flight to SEA, please visit our Customer Service Portal.
What is the best day to buy a plane ticket?
This just in! Airfares offered on Thursdays tend to be the cheapest, according to flight demand on Travelocity in 2021. Tuesday and Wednesday prices are also good, but you may want to prepare your budget if booking during the weekend, as data shows that is when prices are generally at their highest.
What are the cheapest days to fly?
Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2021, flights departing on a Monday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.
How far in advance can you book a flight?
Trying to figure out how early you should book your flight? It’s possible to start comparing international airfares on Travelocity up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 0-2 weeks prior to their travel dates.*According to flight demand on Travelocity.com from January to December 2021. Savings are subject to change based on departure location, date and destination.

Discover our best United flight from Portland PWM to Seattle SEA 

To find the best deals on flights to Portland from Seattle with United, just enter your travel dates, filter by United, and hit search. You’ll find flights to choose from and can sort by price, flight duration, and arrival or departure time.  

 

Return flights from Portland PWM to Seattle SEA with United 

If you’re planning a round trip, booking return flights with United is usually the most cost-effective option. With airfares ranging from $321 to $356, it’s easy to find a flight that suits your budget. Prices and availability subject to change. Additional terms may apply. 

 

Book one-way United flights from Portland PWM to Seattle SEA 

A one-way ticket gives you much greater flexibility—allowing you to choose your return date, destination, and time whenever you’re ready. By booking in advance you can find great deals on one-way tickets too. Right now, a one-way United flight from Portland to Seattle costs from $159. Prices and availability subject to change. Additional terms may apply. 

 

The easy way to find cheap flights to Seattle SEA from  Portland PWM with United 

To find a cheap United flight from Portland PWM to Seattle SEA, sort your search results by price or filter by budget. Thanks to Travelocity’s Price Match Promise, if you find a better airfare deal anywhere else within 24 hours, we’ll credit or refund the difference. 

 

How to find our best airfare deals on United flights from Portland PWM to Seattle SEA 

If you’re looking for cheap flights, it helps to be flexible when it comes to your travel dates. You’ll usually find lower cost tickets when you travel during quieter months such as October, or if you book a flight with a stopover. 

 

Find nonstop flights from Portland PWM to Seattle SEA with United 

If you’re keen to be on Seattle soil fast, don’t waste time with a stopover—filter your search results to show direct United flights only. The journey takes around hour(s) min(s) – so you’ll be there before you know it. 

 

Flexible airline tickets for United flights from Portland PWM to Seattle SEA 

Make sure you’re not out of pocket if plans change by choosing a flexible ticket with penalty-free amendment and cancellation options. Use our ‘no change fee’ filter to see which flights have this option.  

 

There are a lot of reasons to book your flights to Seattle SEA from  Portland PWM with United on Travelocity 

At Travelocity our vast and up-to-the-minute inventory puts all of our best flight deals in one place. So, whether you’re traveling on business or jetting off with friends and family, you can trust Travelocity to get you there.

United Airports
Hop on a(n) United flight today by flying to many destinations out of these domestic and international airports:
Airport code
Country
Airport name
Number of flights
ORDUSAO'Hare Intl.227
DENUSADenver Intl.226
IAHUSAGeorge Bush Intercontinental136
IADUSAWashington Dulles Intl.100
SFOUSASan Francisco Intl.64
LAXUSALos Angeles Intl.23
EWRUSALiberty Intl.20
FRADEUFrankfurt Intl.19
NRTJPNNarita Intl.19
PEKCHNCapital Intl.16

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