Cheap United flights St. Louis (STL) to Seattle Paine Field Intl. Airport (PAE)

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Flights from St. Louis (STL) to Seattle Paine Field Intl. Airport (PAE)
Origin airport
Lambert-St. Louis Intl.
Destination airport
Seattle Paine Field Intl. Airport
Airlines serving
Alaska Airlines
Popular airline
Alaska Airlines
Distance
1709 mi

Frequently asked questions

How much is a United Airlines flight from Lambert-St. Louis Intl. Airport (STL) to Snohomish County - Paine Field Airport (PAE)?
You can discover cheap round-trip United Airlines flights from STL to PAE by organizing your results from "Price (lowest to highest)" on Expedia. Or look for bargains for a one-way trip.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from STL to PAE with United Airlines?
Browse for one-way or round-trip flights to Seattle in January or February. You could find lower fares with United Airlines during these off-peak months.
What is the cheapest time to book flights from Lambert-St. Louis Intl. Airport (STL) to Snohomish County - Paine Field Airport (PAE) with United Airlines?
Look for cheap United Airlines flights from Lambert-St. Louis Intl. Airport (STL) to Snohomish County - Paine Field Airport (PAE) one to three months prior to your departure. Travelers who book domestic flights 34 to 86 days in advance can save 25% compared to those who book just 6 to 12 days ahead. No matter the fare type and itinerary, the best day of the week to book a domestic flight is generally Sunday and the most expensive day is typically Monday. Passengers who book on a Sunday can save 6% on average compared to those who book their travel on a Monday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does United Airlines fly nonstop from Lambert-St. Louis Intl. Airport (STL) to Snohomish County - Paine Field Airport (PAE)?
Simply enter your dates, click search and check "Nonstop" on Expedia to find any direct flights from STL to PAE with United Airlines or another airline.
What is the earliest United Airlines flight from STL to PAE?
Find United Airlines's earliest flights from STL to PAE by checking the "Morning" and "Early Morning" filters. Not only will you get to your destination sooner, early departures also have a 20% less chance of being canceled.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does United Airlines fly into in Seattle?
Snohomish County - Paine Field Airport (PAE) is the main Seattle gateway for United Airlines flights from Lambert-St. Louis Intl. Airport (STL).
Why fly with United Airlines from STL to PAE?
With a rewarding loyalty program, United Airlines is a popular choice for many passengers heading from STL to PAE. Plus, as a United Mileage Plus and One Key™ member booking through Expedia, you can earn OneKeyCash™* on eligible flights on top of your airline miles.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
Can I change or cancel my United Airlines flight from Lambert-St. Louis Intl. Airport (STL) to Snohomish County - Paine Field Airport (PAE)?
It's usually possible to cancel or modify your flight, although there may be additional fees if your booking was made more than 24 hours ago. Need flexible options? Make use of Expedia's "No cancel fee" or "Changes included" filter to find flights that won't penalize you if you have to alter your plans. To modify your booking, go to "Trips," select your flight and click on "Manage Booking" for more details.

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*Available to One Key members.