Vuelos de United de Allentown (ABE) a Seattle (SEA) desde $201

For info on any current SEA travel advice and quarantine requirements, visit our Covid-19 Travel Advisor. Look before you arrange your flight, so you don’t get caught up en route.

Once you’ve received the boarding pass for your flight from Lehigh Valley Intl. Airport (ABE) to SEA, you should be able to identify which terminals United Airlines flies in and out of. If not, consult your carrier or do some online research for those details.

Be ready for a stopover when traveling from ABE to SEA, as United Airlines doesn’t offer any direct flights on this route. While waiting for your connection, you might like to buy a new novel or your favorite magazine from the airport bookstore to make the time go quicker.

Throw that book in your carry-on you’ve been eager to read. A flight from Lehigh Valley Intl. Airport (ABE) to Sea-Tac Airport with United Airlines takes about 7 hours and 23 minutes. You’ll have sufficient time to get totally swept up in the riveting plot.

You’ll have lots of flexibility if you’re thinking about flying with United Airlines from ABE to SEA. Currently, it offers no fewer than 2 flights every day.

For more info about changing your flight to Seattle - Tacoma Intl. Airport (SEA), please visit our Customer Service Portal.

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.

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.

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.