Delta Air LinesDLDelta Air Lines
One Way•Economy
United StatesSEA

Seattle–Tacoma International Airport

Seattle / Tacoma, United States
United StatesBOS

Logan International Airport

Boston, United States
$201 USD
-23%$154 USD
Verified Dec 1, 2025 at 3:47 AM
Good Availability
54% of dates checked are available within 10% of the lowest price

Saturday, March 21st, 2026

Outbound Flights

·
→
·
→
·
→
5h 25m·Nonstop
$389 USD
Delta Air Lines
SEAMar 21 22:25
→
BOSMar 22 06:50
DL 473Airbus A321neo
5h 23m·Nonstop
$479 USD
Delta Air Lines
SEAMar 21 07:20
→
BOSMar 21 15:43
DL 459Airbus A321neo
7h 1m·1 stop
$599 USD
Delta Air Lines
SEAMar 21 23:15
→
DTWMar 22 06:27
DL 810Boeing 737
48m layover
Delta Air Lines
DTWMar 22 07:15
→
BOSMar 22 09:16
DL 1163Airbus A319
8h 59m·1 stop
$599 USD
Delta Air Lines
SEAMar 21 11:50
→
MSPMar 21 17:11
DL 941Boeing 737
2h 48m layover
Delta Air Lines
MSPMar 21 19:59
→
BOSMar 21 23:49
DL 2614Airbus A321
9h 40m·1 stop
$599 USD
Delta Air Lines
SEAMar 21 17:30
→
SLCMar 21 20:31
DL 1165Boeing 737
3h layover
Delta Air Lines
SLCMar 21 23:31
→
BOSMar 22 06:10
DL 696Airbus A321neo
8h 14m·1 stop
$739 USD
Delta Air Lines
SEAMar 21 08:25
→
MSPMar 21 13:47
DL 536Boeing 737
2h 4m layover
Delta Air Lines
MSPMar 21 15:51
→
BOSMar 21 19:39
DL 2591Airbus A321
7h 27m·1 stop
$739 USD
Delta Air Lines
SEAMar 21 13:32
→
SLCMar 21 16:40
DL 1120Airbus A321neo
50m layover
Delta Air Lines
SLCMar 21 17:30
→
BOSMar 21 23:59
DL 702Airbus A321neo
Google Flights