United Cheap Flights from Boston to Seattle

Find The Best Day To Fly from Boston to Seattle

Amazing United BOS to SEA Flight Deals

The cheapest flights to Seattle - Tacoma Intl. found within the past 7 days were $216 round trip and one way. Prices and availability subject to change. Additional terms may apply.

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Frequently asked questions

Can I catch a flight from BOS to Sea-Tac Airport right now?
Ensure you visit our Covid-19 Travel Advisor to find out if there are any current travel advice reports or quarantine requirements in effect in Sea-Tac Airport when jet-setting from BOS.
What terminal is United Airlines at Logan Intl. Airport (BOS)?
If you’re flying with United Airlines from Logan Intl. Airport (BOS) to Seattle - Tacoma Intl. Airport (SEA), you might be able to find out the terminal information once you’re issued with your boarding pass. If not, contact your airline.
Are there United Airlines non-stop flights from BOS to SEA?
Unfortunately, you can’t fly direct between Logan Intl. Airport (BOS) and SEA with United Airlines. You should be prepared to make at least one stopover if you need to travel on this particular airline and route.
How long is a United Airlines flight from BOS to SEA?
Lose yourself in a movie or two, listen to a podcast or just put your seat back and relax. Whatever interests you, you’ll need to find a way to while away the 7 hours and 47 minutes that it takes to go from Logan Intl. Airport to Seattle - Tacoma Intl. Airport (SEA) with United Airlines.
How many direct and indirect flights does United Airlines fly from BOS to SEA?
Take your pick of roughly 5 United Airlines flights each day from BOS to SEA.
If I am not able to travel due to COVID-19, can I change my booking to a later date?
For more info about changing your flight to Sea-Tac Airport, please visit our Customer Service Portal.
Which airlines offer COVID-19 measures and exercise social distancing rules?
Alaska Airlines, Delta and Southwest Airlines are just some of the many carriers that employ COVID-19 measures and use social distancing rules on their flights. Some of their strategies are cleaning with disinfectant and providing passenger masks.
What is the best day to buy a plane ticket?
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.
What are the cheapest days to fly?
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.
How far in advance can you book a flight?
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.

Discover our best United flight from Boston BOS to Seattle SEA 

To find the best deals on flights to Boston from Seattle with United, just enter your travel dates, filter by United, and hit search. You’ll find flights to choose from and can sort by price, flight duration, and arrival or departure time.  

 

Return flights from Boston BOS to Seattle SEA with United 

If you’re planning a round trip, booking return flights with United is usually the most cost-effective option. With airfares ranging from $216 to $251, it’s easy to find a flight that suits your budget. Prices and availability subject to change. Additional terms may apply. 

 

Book one-way United flights from Boston BOS to Seattle SEA 

A one-way ticket gives you much greater flexibility—allowing you to choose your return date, destination, and time whenever you’re ready. By booking in advance you can find great deals on one-way tickets too. Right now, a one-way United flight from Boston to Seattle costs from . Prices and availability subject to change. Additional terms may apply. 

 

The easy way to find cheap flights to Seattle SEA from  Boston BOS with United 

To find a cheap United flight from Boston BOS to Seattle SEA, sort your search results by price or filter by budget. Thanks to Travelocity’s Price Match Promise, if you find a better airfare deal anywhere else within 24 hours, we’ll credit or refund the difference. 

 

How to find our best airfare deals on United flights from Boston BOS to Seattle SEA 

If you’re looking for cheap flights, it helps to be flexible when it comes to your travel dates. You’ll usually find lower cost tickets when you travel during quieter months such as November, or if you book a flight with a stopover. 

 

Find nonstop flights from Boston BOS to Seattle SEA with United 

If you’re keen to be on Seattle soil fast, don’t waste time with a stopover—filter your search results to show direct United flights only. The journey takes around hour(s) min(s) – so you’ll be there before you know it. 

 

Flexible airline tickets for United flights from Boston BOS to Seattle SEA 

Make sure you’re not out of pocket if plans change by choosing a flexible ticket with penalty-free amendment and cancellation options. Use our ‘no change fee’ filter to see which flights have this option.  

 

There are a lot of reasons to book your flights to Seattle SEA from  Boston BOS with United on Travelocity 

At Travelocity our vast and up-to-the-minute inventory puts all of our best flight deals in one place. So, whether you’re traveling on business or jetting off with friends and family, you can trust Travelocity to get you there.

United Airports
Hop on a(n) United flight today by flying to many destinations out of these domestic and international airports:
Airport Code
Country
Airport Name
Number of Flights
ORDUSAO'Hare Intl.227
DENUSADenver Intl.226
IAHUSAGeorge Bush Intercontinental136
IADUSAWashington Dulles Intl.100
SFOUSASan Francisco Intl.64
LAXUSALos Angeles Intl.23
EWRUSALiberty Intl.20
FRADEUFrankfurt Intl.19
NRTJPNNarita Intl.19
PEKCHNCapital Intl.16

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Red Lion Hotel Seattle Airport Sea-Tac
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3 out of 5
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Oldie but Goodie stay.
"It met my expectations and was clean and in good condition for its age. I was not a fan of the pillows but is not a deal breaker. It does not have the sound proofing like newer hotels and sounds do travel from other rooms. It was very close and convenient to the airport. The free shuttle was very ..."

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Radisson Hotel Seattle Airport
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3.5 out of 5
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This hotel features a restaurant, an indoor pool, and a bar/lounge. Traveling on business? Take advantage of the 9 conference rooms, 24-hour business center, ...
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"The hotel was very nice"

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Country Inn & Suites by Radisson, Seattle-Tacoma International Airport, WA
Country Inn & Suites by Radisson, Seattle-Tacoma International Airport, WA
3 out of 5
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4.4/5 Excellent! (3,213 reviews)
"Nice hotel, near the airport! Enjoyed the pool, breakfast & shuttle service."

Reviewed on Sep 21, 2022

Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.
*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.