Cheap flights from Pennsylvania to Seattle from $80
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Pennsylvania to Seattle departing on 5/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
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 Pennsylvania to Seattle
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
Cheap direct flights
Frontier flights from Pennsylvania to Seattle
Our best Frontier deals on Pennsylvania to Seattle flight tickets
Alaska Airlines flights from Pennsylvania to Seattle
Our best Alaska Airlines deals on Pennsylvania to Seattle flight tickets
See travel insights to Seattle from
How to get the cheapest flight ticket from Pennsylvania 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, March is the cheapest month to fly from Pennsylvania to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $367. If you don’t want to visit Seattle in March, then you should wait until February to fly from Pennsylvania, when ticket prices are also cheap, with an average price of $386.
What is the cheapest day to depart on your flight to Seattle?
On average, the least expensive day to fly to Seattle from Pennsylvania is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $478. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from Pennsylvania because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $573.
What is the cheapest time of day to depart on your flight to Seattle?
Flying to Seattle from Pennsylvania at noon is the least expensive time of day to depart. momondo users have found prices as low as $416 when looking at flights departing at noon. Flights to Seattle are more costly in the morning, with an average ticket price of $548. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.
What is the cheapest Pennsylvania to Seattle/Tacoma Intl flight route?
Fly from Pittsburgh to Seattle/Tacoma Intl for the best Pennsylvania - 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 Pennsylvania when booking 5 weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $435 when searching 5 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Pennsylvania for as low as $401 on momondo.
What cabin class options are available on Pennsylvania to Seattle/Tacoma Intl flights?
There are 4 cabin classes available to choose from on Pennsylvania 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.
What is the cheapest airline that flies from Pennsylvania to Seattle/Tacoma Intl?
Spirit Airlines, Frontier, and Alaska Airlines are the most popular carriers operating from Pennsylvania to Seattle/Tacoma Intl
What airlines fly to Seattle?
American Airlines, Alaska Airlines and United Airlines are the top three most popular airlines that fly to Seattle from Pennsylvania according to our data. American Airlines is the first choice among our users, with 43% of people opting to fly with this airline when traveling to Seattle. Keep in mind that there are 10 different airlines that fly to Seattle on a routine basis, so you have a few additional options to choose from.
How many flights depart from Pennsylvania to Seattle on average per day?
As of April 2025, there are 78 flights per day flying from Pennsylvania to Seattle. The most common time of day flights depart is 6:00PM, with 44% of flights taking off in the evening.
How many flights depart from Pennsylvania to Seattle on average per week?
The number of flights available between Pennsylvania and Seattle is 551 per week as of April 2025. The most frequent departure day is Tue, with 18% of weekly flights leaving on this day.
Cheap Pennsylvania to Seattle flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Pennsylvania to Seattle
When did momondo last update prices for flights from Pennsylvania to Seattle/Tacoma Intl Airport?
Prices for flights from Pennsylvania to Seattle/Tacoma Intl Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Pennsylvania to Seattle/Tacoma Intl Airport?
As of April 2025, there are 11 operators available to choose from for flights from Pennsylvania to Seattle/Tacoma Intl Airport.
How old do you have to be to fly from Pennsylvania to Seattle/Tacoma Intl Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Pennsylvania to Seattle/Tacoma Intl Airport.
What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?
The required travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Pennsylvania to Seattle?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Pennsylvania to Seattle is Boeing 737-900 Passenger/BBJ3 (winglets) (41.15% of total bookings). The next most popular plane models are Boeing 737 MAX 9 (22.87%), Airbus A321-100/200 (12.37%), and Boeing 737 (7.15%).
Best airlines flying from Pennsylvania to Seattle
Compare and see reviews for airlines that fly from Pennsylvania to Seattle with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $83 | Free Cancellation | Rating 6.0 3,281 reviews | |||
| PriceFrom $115 | Free Cancellation | Rating 7.3 2,927 reviews | |||
| PriceFrom $139 | Free Cancellation | Rating 6.3 7,921 reviews | |||
| PriceFrom $199 | Free Cancellation | Rating 6.9 349 reviews | |||
| PriceFrom $212 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $216 | Free Cancellation | Rating 8.0 7,918 reviews | |||
| PriceFrom $233 | Free Cancellation | Rating 7.9 2,375 reviews | |||
| PriceFrom $236 | Free Cancellation | Rating 7.4 8,658 reviews | |||
| PriceFrom $246 | Free Cancellation | Rating 8.0 4,279 reviews | |||
| PriceFrom $255 | Free Cancellation | Rating 8.0 9,871 reviews |
Traveling to a place near Seattle?
Book flights to Seattle if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Pennsylvania to Seattle?
We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Pennsylvania to Seattle for you.
Can I find flights from Pennsylvania to Seattle with flexible booking policies on momondo?
Yes. momondo enables you to select and highlight flights to Seattle from Pennsylvania with this policy.
How can momondo help me find flights from Pennsylvania to Seattle?
Once you have performed a search for Pennsylvania to Seattle flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.
I’m not ready to book a flight from Pennsylvania to Seattle right now. Can momondo alert me if prices change?
Yes momondo offers price alerts on flights to Seattle from Pennsylvania. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.