Cheap Flights from Portland, Maine to Seattle
No deal from Portland, Maine to Seattle has cleared our price bar yet. What we have seen on the route is below.
Across 3 months of observations from Portland, Maine to Seattle, the lowest round-trip fare we recorded was $384, in October. The typical fare was $407. October was the cheapest month we saw and September the dearest.
The most recent price we saw on this route was $384 on United, seen Nov 1. It is an unverified observation and may have changed.
See every deal from Portland, Maine, to Seattle, or the return direction Seattle to Portland, Maine.
Latest price we saw: Portland, Maine to Seattle
The most recent round-trip fare our sweep found on this route. It is not verified and may have changed since the date shown.
| From | Price | Per mile | Travel dates | Airline | Seen | Check price |
|---|---|---|---|---|---|---|
| Portland, Maine (PWM) to Seattle (SEA) | $384 | 7.7¢ | Nov 23 – Dec 2 | United | Nov 1 | Check price |
Price history: Portland, Maine to Seattle
What we observed by month, from our signals database. Unverified observations, not bookable prices.
| Month | Low | Typical | Sightings |
|---|---|---|---|
| Nov 2026 | $384 | $384 | 1 |
| Oct 2026 | $384 | $384 | 1 |
| Sep 2026 | $453 | $453 | 35 |
Frequently asked questions
How many flight deals from Portland, Maine to Seattle are on Sparkflights right now?
There are 0 verified deals from Portland, Maine to Seattle on the board right now. The list refreshes hourly.
What is the lowest price ever seen from Portland, Maine to Seattle?
The lowest fare we've recorded from Portland, Maine to Seattle is $384, based on 37 price observations over 3 months.
How much does a flight from Portland, Maine to Seattle cost?
The typical round-trip fare we observed from Portland, Maine to Seattle is $407, against a recorded low of $384. These are observations, not quotes.
When is the cheapest month to fly Portland, Maine to Seattle?
October was the cheapest month we observed from Portland, Maine to Seattle and September the dearest, over 3 months of data.
What is the current price from Portland, Maine to Seattle?
The most recent fare our sweep saw from Portland, Maine to Seattle is $384, on Nov 1. It is an unverified observation rather than a verified deal, so check it before booking.