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Round Trip Flights from Boston to Seattle

14 Mar
BOS
18 Mar
SEA
$ 231.19
11 Jan
BOS
13 Jan
SEA
$ 235.95
11 Jan
BOS
14 Jan
SEA
$ 235.95
25 Dec
BOS
27 Dec
SEA
$ 631.86
*Note: All fares are quoted in USD.

Last updated on Friday 12/20/2024 at 05:00 AM, the fares mentioned above are for flight tickets and inclusive of fuel surcharges, service fee and taxes. Based on historical data, these fares are subject to change without prior notice and cannot be guaranteed at the time of booking. Kindly go through our terms and conditions before booking.

Book Boston To Seattle Flights

When it comes to combining nature, innovation, and history, very few cities can match Seattle. This emerald city in Washington has evolved and become the 15th largest metropolitan statistical area in the United States. What Seattle offers tourists depends on what they want to see. The city has everything from historical centers, art galleries, and museums to botanical parks, zoos, and much more. You can visit the Seattle Aquarium, Seattle Art Museum (SAM), and Olympic Sculpture Park. 

Nature has bestowed Seattle with an integral beauty. The city overlooks the stunning views of North Cascades, Whitehorse Mountain, Mount Pilchuck, and Mount Index. Kerry Park is among the most beautiful places to spend a leisurely evening, enjoying the lush beauty. Mount Rainier National Park is another attraction you cannot miss in Seattle. The proximity to nature has made this city a wonder place for outdoor enthusiasts. 

Seattle is a year-round destination; however, there are a few months that promise exceptional experiences with less crowded places and cheap flights from Boston to Seattle. September, October, March, and April are the shoulder months when you can buy cheap airline tickets from Boston to Seattle. Boston Logan International Airport is the main airport for all departures and arrivals. Airlines such as Delta, Alaska, and Southwest regularly operate BOS to SEA flights from here. Seattle-Tacoma International Airport is around 2,492 miles from Boston and will take approximately 5 hours and 38 minutes to reach. 

To know more about flights from Boston to Seattle, you can call our executive 24/7. We are here to assist you with flight bookings, deals, and more. 

Finding Cheap Flights From Boston To Seattle : Frequently Asked Questions

* The mentioned flight facts are based on the last 3 months' data. Information regarding the highest and lowest booking months is based on the last 12 months' data.

Major Carriers Operating Flights From Boston To Seattle
Airline Cheapest Average

UNITED AIRLINES $117 $567

ALASKA AIRLINES $103 $442

AMERICAN AIRLINES $150 $576

Low Cost Carriers Operating Flights From Boston To Seattle
Airline Cheapest Average

ALASKA AIRLINES $103 $442

UNITED AIRLINES $117 $567

AMERICAN AIRLINES $150 $576

Inspiration to Escape the Mundane

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Dec 16, 2024

Alaska Airlines Non-Stop Flights

Alaska Airlines, headquartered in Seattle?Tacoma International Airport, is all set to add new nonstop flights to its international route. From 2025, Alaska will operate daily flights from Seattle to Tokyo and Seoul. Starting May 12th, Alaska will fly directly from Tacoma International to Tokyo Narita, while flights to Seoul Incheon will commence operations in October 2025.