Cheap flights from Portland to Seattle (PWM - SEA)

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The best prices from Portland to Seattle/Tacoma Intl are usually found in January or October, booked 24 days in advance, depart on a Wednesday or Tuesday and return on a Wednesday

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

All the information you need to plan the best PWM to SEA flight in 2022: compare Portland to Seattle flight prices with the expected peak season, weather and rainfall in Seattle.
PWM - SEA
Price
$254 - $790
SEA
Temperature
41 - 66.2 °F
SEA
Rainfall
0.7 - 6.6 inches

Popular in

June

High demand for flights, 41% potential price rise

Cheapest in

January

Best time to find cheap flights, 46% potential price drop

Round-trip from

$254

From Portland to Seattle/Tacoma Intl

One-way from

$188

One-way flight from Portland to Seattle/Tacoma Intl

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest day to fly round-trip from Portland, Maine to Seattle?

Travelers have found that booking a Tuesday departure is the best way to save up to 51% on the cost of booking your flights compared to booking on days of the week where this route is of high demand.

When is the cheapest time to fly from Portland, Maine to Seattle (PWM - SEA)?

When flying from Portland, Maine 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 morning.

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

Travelers have found it’s best to book a flight 32 days in advance to save up to 41% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 32 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Portland, Maine to Seattle 1-2 weeks in advance for as low as $414, or $537 for flights within the next 24 hours.

Cheap flights from Portland to Seattle in June, July 2022

The best prices found for PWM to SEA flights for June, July
22 Jul - 26 Jul
$612pp
PWM
Portland
Multiple Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Multiple Airlines
   
2 STOPS
PWM
Portland
22 Jul - 26 Jul
$625pp
PWM
Portland
Multiple Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
JetBlue
 
1 STOP
PWM
Portland
15 Jul - 5 Aug
$649pp
PWM
Portland
Multiple Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Frontier
   
2 STOPS
PWM
Portland

Portland to Seattle 2022 flight deals

Cheap flights to Seattle from Portland found for this year
13 Sep - 20 Sep
$382pp
PWM
Portland
JetBlue
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
JetBlue
 
1 STOP
PWM
Portland
4 Oct - 11 Oct
$394pp
PWM
Portland
American Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
American Airlines
 
1 STOP
PWM
Portland
4 Oct - 11 Oct
$398pp
PWM
Portland
American Airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
American Airlines
 
1 STOP
PWM
Portland

One-way flights to Seattle/Tacoma Intl from Portland

The cheapest one-way flights from Portland to Seattle
6:24 am - 3:10 pm
JetBlue
1 Stop
11h 46m
PWM - SEA
JetBlue
9:00 am - 4:14 am
Sun Country Air
1 Stop
22h 14m
PWM - SEA
Sun Country Air
1:31 pm - 6:12 am
Frontier
2 Stops
43h 41m
PWM - SEA
Frontier
$396
Kiwi.com

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Portland</span> to <span class="emphasized">Seattle</span> flights.

Flight FAQs

From Portland to Seattle

Which airlines flying from Portland to Seattle/Tacoma Intl have flexible cancellations due to COVID-19?

Some of our airline partners flying from Portland to Seattle/Tacoma Intl have new flexible policies in place due to COVID-19. United Airlines, American Airlines, and Delta are some of the carriers where you may find flexible cancellation policies. You can use our site to filter for airlines like United Airlines with this kind of flexibility.

Can I find flights from Portland, Maine to Seattle for under $400 on Cheapflights?

Yes, there are multiple flights from Portland, Maine to Seattle for under $400. The cheapest flight booked recently is on JetBlue for just $382, but on average you can expect to pay $458.

How popular is this Portland, Maine to Seattle flight route?

The Portland to Seattle/Tacoma Intl flight path was viewed by 12 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, Maine to Seattle round-trip?

Currently priced at $382, JetBlue will fly you from Portland, Maine to Seattle and back. In addition to JetBlue, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from American Airlines and Sun Country Air - these airlines can fly you to your destination from $394 and $416, respectively. JetBlue is currently priced 18% below the average price you’ll pay for this route.

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

The cheapest airline one-way is JetBlue, with whom users have recently found tickets for as low as $188. However, be on the lookout for offers from Sun Country Air and United Airlines, as they are both options that can get you from Portland, Maine to Seattle for a low price.

What are the most popular airlines that fly from Portland, Maine to Seattle?

When booking a flight from Portland, Maine to Seattle, you may want to consider flying on Major Airline, American Airlines or Alaska Airlines as they are the most popular for this route.

What are the cheapest flights from Portland, Maine to Seattle?

Looking at all options, your cheapest flight can be booked for $183. While the most popular route (Portland - Seattle/Tacoma Intl) can be booked for $382 on average our data indicates $1,151 when flying from Portland, Maine to Seattle.

COVID Restrictions

View COVID Travel Restrictions for Seattle, WA

Do I need a COVID test to fly to Seattle from Portland?

Information is based on travel restrictions for travel to Seattle/Tacoma Intl within the United States

Most visitors from Portland need to provide a negative COVID-19 test result and/or quarantine to enter Seattle/Tacoma Intl.

COVID-19 testing requirements
Visitors from Portland are not required to present a negative COVID-19 PCR test or antigen result upon entering Seattle/Tacoma Intl.

Quarantine requirements
Visitors from Portland are not required to quarantine after entering Seattle/Tacoma Intl.

Do I need a test to fly back to Portland from Seattle?

Returning to Portland from Seattle/Tacoma Intl

COVID-19 testing requirements
Visitors from Seattle/Tacoma Intl are not required to present a negative COVID-19 PCR test or antigen result upon entering Portland.

Quarantine requirements
Visitors from Seattle/Tacoma Intl are not required to quarantine after entering Portland.

Hide COVID Travel Restrictions for Seattle, WA

Alternative routes for Portland to Seattle

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

Destination information for Seattle

Things to know before you go - useful duration and weather info for your trip from Portland to Seattle.
Average temperature for June in Seattle
71.6 °F
Avg rainfall for June in Seattle
1.6 ″

Airports servicing Portland

Airports servicing Seattle

Top 5 airlines flying from Portland to Seattle/Tacoma Intl

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.
Airline Cheapest Average Flexibility On-time COVID-19 safety
United Airlines
$235 $528 No cancel fee 69%
Delta
$236 $529 No cancel fee N/A
American Airlines
$244 $467 No cancel fee 71%
Sun Country Air
$347 $544 No cancel fee 83%
Alaska Airlines
$466 $649 No cancel fee 75%
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