Delta Air Lines Inc. Boston to Seattle Flights

Return flight: Seattle – Boston

Cheapflightsplus.com will find cheap Delta Air Lines Inc. flights from Boston to Seattle. Compare airline ticket prices and book air tickets starting from $167 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 Boston (MA) — Seattle (WA) 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 march: one-way - $167, two-way – $286.
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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 Arrival Flight Details Flight Time Price
6:40 pm — 10:25 pm
6:40 pm — 10:25 pm DL324 Delta Air Lines Inc.
Boston — Seattle
6h 45m
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from$167
7:00 am — 10:45 am
7:00 am — 10:45 am DL384 Delta Air Lines Inc.
Boston — Seattle
6h 45m
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from$167
10:40 am — 10:25 pm
10:40 am — 12:04 pm DL5720 Delta Air Lines Inc.
Boston — New York
6h 46m stop
6:50 pm — 10:25 pm DL688 Delta Air Lines Inc.
New York — Seattle
14h 45m
including layover
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from$417
10:40 am — 8:11 pm
10:40 am — 12:04 pm DL5720 Delta Air Lines Inc.
Boston — New York
4h 36m stop
4:40 pm — 8:11 pm DL740 Delta Air Lines Inc.
New York — Seattle
12h 31m
including layover
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from$423
11:05 am — 9:48 pm
11:05 am — 1:03 pm DL2679 Delta Air Lines Inc.
Boston — Chicago
5h 42m stop
6:45 pm — 9:48 pm DL1214 Delta Air Lines Inc.
Chicago — Seattle
13h 43m
including layover
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from$284
11:15 am — 4:23 pm
11:15 am — 1:36 pm DL1103 Delta Air Lines Inc.
Boston — Minneapolis
44m stop
2:20 pm — 4:23 pm DL877 Delta Air Lines Inc.
Minneapolis — Seattle
8h 8m
including layover
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from$380
12:10 pm — 8:27 pm
12:10 pm — 3:08 pm DL376 Delta Air Lines Inc.
Boston — Atlanta
2h 33m stop
5:41 pm — 8:27 pm DL814 Delta Air Lines Inc.
Atlanta — Seattle
11h 17m
including layover
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from$383
12:35 pm — 10:25 pm
12:35 pm — 2:03 pm DL5829 Delta Air Lines Inc.
Boston — New York
4h 47m stop
6:50 pm — 10:25 pm DL688 Delta Air Lines Inc.
New York — Seattle
12h 50m
including layover
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from$474
1:25 pm — 8:27 pm
1:25 pm — 4:25 pm DL322 Delta Air Lines Inc.
Boston — Atlanta
1h 16m stop
5:41 pm — 8:27 pm DL814 Delta Air Lines Inc.
Atlanta — Seattle
10h 2m
including layover
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from$383
1:58 pm — 8:11 pm
1:58 pm — 3:29 pm DL5592 Delta Air Lines Inc.
Boston — New York
1h 11m stop
4:40 pm — 8:11 pm DL740 Delta Air Lines Inc.
New York — Seattle
9h 13m
including layover
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from$383
2:35 pm — 8:00 pm
2:35 pm — 5:08 pm DL5789 Delta Air Lines Inc.
Boston — Covington
42m stop
5:50 pm — 8:00 pm DL724 Delta Air Lines Inc.
Covington — Seattle
8h 25m
including layover
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from$335
3:10 pm — 9:00 pm
3:10 pm — 5:35 pm DL1056 Delta Air Lines Inc.
Boston — Minneapolis
1h 10m stop
6:45 pm — 9:00 pm DL881 Delta Air Lines Inc.
Minneapolis — Seattle
8h 50m
including layover
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from$335
3:40 pm — 0:16 am
+1 day
3:40 pm — 6:43 pm DL963 Delta Air Lines Inc.
Boston — Atlanta
2h 52m stop
9:35 pm — 0:16 am DL727 Delta Air Lines Inc.
Atlanta — Seattle
11h 36m
including layover
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from$338
4:55 pm — 10:24 pm
4:55 pm — 7:15 pm DL2061 Delta Air Lines Inc.
Boston — Detroit
45m stop
8:00 pm — 10:24 pm DL565 Delta Air Lines Inc.
Detroit — Seattle
8h 29m
including layover
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from$335
5:00 pm — 0:16 am
+1 day
5:00 pm — 8:07 pm DL638 Delta Air Lines Inc.
Boston — Atlanta
1h 28m stop
9:35 pm — 0:16 am DL727 Delta Air Lines Inc.
Atlanta — Seattle
10h 16m
including layover
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from$338
5:35 am — 3:04 pm
5:35 am — 8:40 am DL695 Delta Air Lines Inc.
Boston — Atlanta
3h 35m stop
12:15 pm — 3:04 pm DL629 Delta Air Lines Inc.
Atlanta — Seattle
12h 29m
including layover
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from$342
7:20 am — 9:38 am
+1 day
7:20 am — 9:29 am DL2570 Delta Air Lines Inc.
Boston — Chicago
21h 31m stop
7:00 am — 9:38 am AS333 Alaska Airlines
Chicago — Seattle
29h 18m
including layover
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from$244
8:05 am — 3:04 pm
8:05 am — 11:10 am DL456 Delta Air Lines Inc.
Boston — Atlanta
1h 5m stop
12:15 pm — 3:04 pm DL629 Delta Air Lines Inc.
Atlanta — Seattle
9h 59m
including layover
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from$383
9:10 am — 4:58 pm
9:10 am — 12:48 pm DL464 Delta Air Lines Inc.
Boston — Salt Lake City
2h 47m stop
3:35 pm — 4:58 pm DL2817 Delta Air Lines Inc.
Salt Lake City — Seattle
10h 48m
including layover
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from$335
6:15 am — 8:00 pm
6:15 am — 7:46 am DL5764 Delta Air Lines Inc.
Boston — Newark
6h 53m stop
2:39 pm — 4:45 pm DL5075 Delta Air Lines Inc.
Newark — Covington
1h 5m stop
5:50 pm — 8:00 pm DL724 Delta Air Lines Inc.
Covington — Seattle
16h 45m
including layover
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from$254
8:17 am — 7:15 am
+1 day
8:17 am — 9:59 am DL5711 Delta Air Lines Inc.
Boston — Philadelphia
9h 40m stop
7:39 pm — 10:02 pm F93339 Frontier Airlines
Philadelphia — Denver
7h 2m stop
5:04 am — 7:15 am F91175 Frontier Airlines
Denver — Seattle
25h 58m
including layover
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from$252
9:00 am — 8:00 pm
9:00 am — 10:30 am DL5732 Delta Air Lines Inc.
Boston — Newark
4h 9m stop
2:39 pm — 4:45 pm DL5075 Delta Air Lines Inc.
Newark — Covington
1h 5m stop
5:50 pm — 8:00 pm DL724 Delta Air Lines Inc.
Covington — Seattle
14h
including layover
Find flight
from$292
*Departure and arrival times are local. Last updated on 03/21/2025

Flight Information

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

Departures start from 10:00 am to 9:10 am. Nonstop flight is 6h 45m. The time difference between Boston and Seattle is 3h.

  • The fastest flight 6h 45m
  • Average flight time 6h 45m
  • The earliest flight 10:00 am
  • The latest flight 9:10 am
  • Distance 2489 ml

The cheapest months for traveling to Seattle are november (from 167 $).

The cheapest flight by Delta Air Lines Inc. that our users were able to find is $167. This airfare is economy class on one-way DL384 flight for November 12, 2024 leaving Logan in Boston at 7:00 am, it includes all taxes and additional fees.

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Other Popular Airlines on the Route

Besides Delta Air Lines Inc. there are other 12 airline carriers between Boston and Seattle. Please review schedules and prices from the most popular airlines to find the best airfare deals from Boston to Seattle.

Nonstop flights

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

  • from $149
    Find
  • AA - American Airlines
    from $400
    Find
  • AS - Alaska Airlines
    from $150
    Find
See more direct flights

Connecting Flights

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

  • from $160
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  • AA - American Airlines
    from $162
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  • SY - Sun Country Airlines
    from $163
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  • UA - United Airlines
    from $152
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  • LX - SWISS International Air Lines
    from $6971
    Find
  • AS - Alaska Airlines
    from $164
    Find
  • F9 - Frontier Airlines
    from $165
    Find
  • PD - Porter Airlines
    from $501
    Find
  • TK - Turkish Airlines
    from $2123
    Find
  • HA - Hawaiian Airlines
    from $565
    Find
  • NK - Spirit Airlines
    from $162
    Find
See more connecting flights

How to book an air ticket yourself?

How to book an air ticket yourself?
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  • That's it — you will receive an email with your e-ticket usually within 10 minutes after your flight is confirmed. Please, print the e-ticket and have it with you at the airport. You would need to have only a passport and/or a required form of ID to travel. Please, check your Visa requirements if you travel outside of the United States or Canada.

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