The cheapest flights to Seattle - Tacoma Intl. found within the past 7 days were $172 round trip and $578 one way. Prices and availability subject to change. Additional terms may apply.
|Carrier||Flight||Depart BOS||Arrive SEA||Sat |
|DL341||06:55 am||10:42 am||Check Fare||Check Fare||Check Fare||Check Fare||Check Fare||Check Fare||Check Fare|
|DL318||04:45 pm||08:26 pm||Check Fare||Check Fare||Check Fare||Check Fare||Check Fare||Check Fare||Check Fare|
|DL320||10:35 am||02:16 pm|
|Check Fare||Check Fare||Check Fare||Check Fare||Check Fare||Check Fare|
To find the best deals on flights to Boston from Seattle with Delta, just enter your travel dates, filter by Delta, and hit search. You’ll find 3 flights to choose from and can sort by price, flight duration, and arrival or departure time.
If you’re planning a round trip, booking return flights with Delta is usually the most cost-effective option. With airfares ranging from $172 to $904, it’s easy to find a flight that suits your budget. Prices and availability subject to change. Additional terms may apply.
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 Delta flight from Boston to Seattle costs from $578. Prices and availability subject to change. Additional terms may apply.
To find a cheap Delta 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.
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 February, or if you book a flight with a stopover.
If you’re keen to be on Seattle soil fast, don’t waste time with a stopover—filter your search results to show direct Delta flights only. The journey takes around 6 hour(s) 41 min(s) – so you’ll be there before you know it.
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.
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.
Number of Flights
|ATL||USA||Hartsfield-Jackson Atlanta Intl.||252|
|DTW||USA||Detroit Metropolitan Wayne County||156|
|MSP||USA||Minneapolis - St. Paul Intl.||131|
|SLC||USA||Salt Lake City Intl.||116|
|SEA||USA||Seattle - Tacoma Intl.||57|
|LAX||USA||Los Angeles Intl.||41|
|JFK||USA||John F. Kennedy Intl.||23|
Reviewed on Nov 30, 2022
Reviewed on Dec 2, 2022
Reviewed on Nov 30, 2022