Delta Air Lines Inc. Seattle to Boston Flights

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Cheapflightsplus.com will find cheap Delta Air Lines Inc. flights from Seattle to Boston. Compare airline ticket prices and book air tickets starting from $148 from trusted online travel agencies, web sites and directly from airlines. Check flights schedule of Delta Air Lines Inc., arrivals and departure details below.

Find Cheap Airfare Seattle (WA) — Boston (MA) by Delta Air Lines Inc.

To find cheap tickets choose a day of your departure with attractive price on the graph below and click «Find flights». For round trip flights please click «Check prices for return flight». The cheapest airfare is in may: one-way - $148, two-way – $254.

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Cheap Flights from Seattle to Boston by Delta Air Lines Inc.

Look at the list of plane tickets for the most popular direct and connecting flights by Delta Air Lines Inc., their prices start from $148. The fastest nonstop flight takes 5h 26m. The fastest connecting flight — 6h 50m.

Price	Departure	Arrival	Flight Time	Airline	Flight
from $148 Find flight	11:29 pm Seattle Seattle-Tacoma Intl	7:55 am+1 день Boston Logan	5h 26m	Delta Air Lines Inc.	DL473
from $148 Find flight	7:30 am Seattle Seattle-Tacoma Intl	4:02 pm Boston Logan	5h 32m	Delta Air Lines Inc.	DL459
from $221 Find flight	5:59 pm Seattle Seattle-Tacoma Intl	11:23 am+1 день Boston Logan	14h 24m layover 8h 12m - Chicago	Delta Air Lines Inc.	DL2108 AA314
from $276 Find flight	7:15 am Seattle Seattle-Tacoma Intl	10:22 pm Boston Logan	12h 7m layover 5h 30m - Chicago	Delta Air Lines Inc.	DL2055 DL2646
from $284 Find flight	8:55 am Seattle Seattle-Tacoma Intl	11:39 pm Boston Logan	11h 44m layover 5h 4m - Denver	Delta Air Lines Inc.	DL2740 UA2292
from $284 Find flight	3:31 pm Seattle Seattle-Tacoma Intl	5:51 am+1 день Boston Logan	11h 20m layover 4h 40m - Denver	Delta Air Lines Inc.	DL4094 UA2610
from $292 Find flight	7:10 am Seattle Seattle-Tacoma Intl	7:27 am+1 день Boston Logan	21h 17m layover 14h 20m - New York	Delta Air Lines Inc.	DL429 DL5765
from $292 Find flight	11:15 am Seattle Seattle-Tacoma Intl	7:27 am+1 день Boston Logan	17h 12m layover 10h 16m - New York	Delta Air Lines Inc.	DL415 DL5765
from $303 Find flight	5:10 pm Seattle Seattle-Tacoma Intl	6:04 am+1 день Boston Logan	9h 54m layover 3h 10m - Salt Lake City	Delta Air Lines Inc.	DL1165 DL696
from $237 Find flight	6:05 am Seattle Seattle-Tacoma Intl	11:43 pm Boston Logan	14h 38m layover 2h 50m - Minneapolis 4h 29m - New York	Delta Air Lines Inc.	DL943 DL2866 AA4659
from $237 Find flight	6:00 am Seattle Seattle-Tacoma Intl	11:43 pm Boston Logan	14h 43m layover 0h 50m - Atlanta 5h 51m - New York	Delta Air Lines Inc.	DL569 DL2312 AA4659
from $243 Find flight	6:00 am Seattle Seattle-Tacoma Intl	0:20 am+1 день Boston Logan	15h 20m layover 0h 50m - Atlanta 6h 21m - New York	Delta Air Lines Inc.	DL569 DL2312 B61518
from $254 Find flight	6:00 am Seattle Seattle-Tacoma Intl	9:19 pm Boston Logan	12h 19m layover 0h 50m - Atlanta 3h 17m - Newark	Delta Air Lines Inc.	DL569 DL2312 DL5718
from $292 Find flight	11:05 pm Seattle Seattle-Tacoma Intl	12:26 pm+1 день Boston Logan	10h 21m layover 0h 42m - Detroit 2h 27m - Newark	Delta Air Lines Inc.	DL810 DL2566 UA1864
from $292 Find flight	6:00 am Seattle Seattle-Tacoma Intl	11:17 pm Boston Logan	14h 17m layover 0h 50m - Atlanta 5h 21m - Newark	Delta Air Lines Inc.	DL569 DL2312 UA1298
from $292 Find flight	6:00 am Seattle Seattle-Tacoma Intl	9:35 pm Boston Logan	12h 35m layover 0h 50m - Atlanta 3h 42m - Newark	Delta Air Lines Inc.	DL569 DL2312 UA1393

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*Departure and arrival times are local. Prices are for one-way flights. Information refreshed on 04/22/2025

Delta Air Lines Inc. Flight Schedule Seattle to Boston

Below is a detailed 2025 flight schedule for today, tomorrow and all other days. It may vary depending on season and a day of the week of your desired trip. We recommend booking your itinerary at least 2 weeks prior your travel to get the best price and availability by the airline.

Departure	Flight Details	Flight Time	Price
11:29 pm — 7:55 am +1 day	11:29 pm — 7:55 am DL473 Delta Air Lines Inc. Seattle — Boston	5h 26m	Find flight from$148
7:30 am — 4:02 pm	7:30 am — 4:02 pm DL459 Delta Air Lines Inc. Seattle — Boston	5h 32m	Find flight from$148
12:05 pm — 11:57 pm	12:05 pm — 5:35 pm DL941 Delta Air Lines Inc. Seattle — Minneapolis 2h 30m stop 8:05 pm — 11:57 pm DL2614 Delta Air Lines Inc. Minneapolis — Boston	8h 52m including layover	Find flight from$303
1:35 pm — 11:59 pm	1:35 pm — 4:40 pm DL1120 Delta Air Lines Inc. Seattle — Salt Lake City 45m stop 5:25 pm — 11:59 pm DL702 Delta Air Lines Inc. Salt Lake City — Boston	7h 24m including layover	Find flight from$303
1:55 pm — 0:58 am +1 day	1:55 pm — 9:43 pm DL554 Delta Air Lines Inc. Seattle — Atlanta 42m stop 10:25 pm — 0:58 am DL865 Delta Air Lines Inc. Atlanta — Boston	8h 3m including layover	Find flight from$303
2:13 pm — 5:04 am +1 day	2:13 pm — 5:00 pm DL2830 Delta Air Lines Inc. Seattle — Los Angeles 3h 33m stop 8:33 pm — 5:04 am B6988 JetBlue Los Angeles — Boston	11h 51m including layover	Find flight from$337
2:13 pm — 5:50 am +1 day	2:13 pm — 5:00 pm DL2830 Delta Air Lines Inc. Seattle — Los Angeles 4h 25m stop 9:25 pm — 5:50 am DL507 Delta Air Lines Inc. Los Angeles — Boston	12h 37m including layover	Find flight from$343
3:31 pm — 5:51 am +1 day	3:31 pm — 7:19 pm DL4094 Delta Air Lines Inc. Seattle — Denver 4h 40m stop 11:59 pm — 5:51 am UA2610 United Airlines Denver — Boston	11h 20m including layover	Find flight from$284
3:50 pm — 8:15 am +1 day	3:50 pm — 11:50 pm DL489 Delta Air Lines Inc. Seattle — Raleigh 6h 17m stop 6:07 am — 8:15 am DL1054 Delta Air Lines Inc. Raleigh — Boston	13h 25m including layover	Find flight from$348
4:15 pm — 7:27 am +1 day	4:15 pm — 0:37 am DL446 Delta Air Lines Inc. Seattle — New York 5h 23m stop 6:00 am — 7:27 am DL5765 Delta Air Lines Inc. New York — Boston	12h 12m including layover	Find flight from$331
4:45 pm — 7:56 am +1 day	4:45 pm — 7:15 pm DL2955 Delta Air Lines Inc. Seattle — Las Vegas 4h 44m stop 11:59 pm — 7:56 am B6778 JetBlue Las Vegas — Boston	12h 11m including layover	Find flight from$320
5:59 pm — 11:23 am +1 day	5:59 pm — 11:58 pm DL2108 Delta Air Lines Inc. Seattle — Chicago 8h 12m stop 8:10 am — 11:23 am AA314 American Airlines Chicago — Boston	14h 24m including layover	Find flight from$221
5:59 pm — 10:20 am +1 day	5:59 pm — 11:58 pm DL2108 Delta Air Lines Inc. Seattle — Chicago 7h 2m stop 7:00 am — 10:20 am AA3703 American Airlines Chicago — Boston	13h 21m including layover	Find flight from$221
7:15 am — 10:22 pm	7:15 am — 1:20 pm DL2055 Delta Air Lines Inc. Seattle — Chicago 5h 30m stop 6:50 pm — 10:22 pm DL2646 Delta Air Lines Inc. Chicago — Boston	12h 7m including layover	Find flight from$276
8:55 am — 11:39 pm	8:55 am — 12:43 pm DL2740 Delta Air Lines Inc. Seattle — Denver 5h 4m stop 5:47 pm — 11:39 pm UA2292 United Airlines Denver — Boston	11h 44m including layover	Find flight from$284
9:00 am — 7:40 pm	9:00 am — 2:26 pm DL942 Delta Air Lines Inc. Seattle — Minneapolis 1h 21m stop 3:47 pm — 7:40 pm DL2591 Delta Air Lines Inc. Minneapolis — Boston	7h 40m including layover	Find flight from$303
9:40 am — 11:59 pm	9:40 am — 12:36 pm DL2769 Delta Air Lines Inc. Seattle — Los Angeles 2h 54m stop 3:30 pm — 11:59 pm DL437 Delta Air Lines Inc. Los Angeles — Boston	11h 19m including layover	Find flight from$303
11:05 pm — 3:30 pm +1 day	11:05 pm — 6:23 am DL810 Delta Air Lines Inc. Seattle — Detroit 42m stop 7:05 am — 8:48 am DL2566 Delta Air Lines Inc. Detroit — New York 5h 22m stop 2:10 pm — 3:30 pm DL5647 Delta Air Lines Inc. New York — Boston	13h 25m including layover	Find flight from$254
6:00 am — 11:43 pm	6:00 am — 1:45 pm DL569 Delta Air Lines Inc. Seattle — Atlanta 50m stop 2:35 pm — 4:38 pm DL2312 Delta Air Lines Inc. Atlanta — New York 5h 51m stop 10:29 pm — 11:43 pm AA4659 American Airlines New York — Boston	14h 43m including layover	Find flight from$237
6:05 am — 11:43 pm	6:05 am — 11:33 am DL943 Delta Air Lines Inc. Seattle — Minneapolis 2h 50m stop 2:23 pm — 6:00 pm DL2866 Delta Air Lines Inc. Minneapolis — New York 4h 29m stop 10:29 pm — 11:43 pm AA4659 American Airlines New York — Boston	14h 38m including layover	Find flight from$237
8:55 am — 11:44 pm	8:55 am — 12:43 pm DL2740 Delta Air Lines Inc. Seattle — Denver 3h 17m stop 4:00 pm — 7:33 pm AA122 American Airlines Denver — Chicago 47m stop 8:20 pm — 11:44 pm AA4380 American Airlines Chicago — Boston	11h 49m including layover	Find flight from$294

Departure	Arrival	Flight Details	Flight Time	Price
		stop stop	including layover	Find flight from$

*Departure and arrival times are local. Last updated on 04/22/2025

Flight Information

There are 2 flights by Delta Air Lines Inc. from Seattle to Boston every week with departures from Seattle-Tacoma Intl, Boeing Field International Airport, Kenmore Air Harbor SPB. All flights arrive at Logan, Boston City Heliport, Boston RT128 Rail, Boston South Rail.

Departures start from 11:05 pm to 9:41 am. Nonstop flight is 5h 26m. The time difference between Seattle and Boston is 3h.

The fastest flight 5h 26m
Average flight time 5h 29m
The earliest flight 11:05 pm
The latest flight 9:41 am
Distance 2489 ml

The cheapest months for traveling to Boston are november (from 148 $).

The cheapest flight by Delta Air Lines Inc. that our users were able to find is $148. This airfare is economy class on one-way DL473 flight for November 12, 2024 leaving Seattle-Tacoma Intl in Seattle at 11:29 pm, it includes all taxes and additional fees.

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Delta Air Lines Inc. Airplanes on the Route

List of the most popular Delta Air Lines Inc. airplanes flying from Seattle to Boston:

Boeing 737-800

from $221

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Boeing 737-900

from $237

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Airbus A321

from $254

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Boeing 737

from $307

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Other Popular Airlines on the Route

Besides Delta Air Lines Inc. there are other 8 airline carriers between Seattle and Boston. Please review schedules and prices from the most popular airlines to find the best airfare deals from Seattle to Boston.

Nonstop flights

There are 9 direct flights every day from Seattle. Airlines and fares are below:

B6 - JetBlue

from $87

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AA - American Airlines

from $209

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AS - Alaska Airlines

from $108

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Connecting Flights

List of flights with layovers (1 and more stops):

AA - American Airlines

from $148

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AS - Alaska Airlines

from $110

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F9 - Frontier Airlines

from $191

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SY - Sun Country Airlines

from $163

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TK - Turkish Airlines

from $1348

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UA - United Airlines

from $152

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NK - Spirit Airlines

from $109

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How to book an air ticket yourself?

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