Cheap Flights from Seattle, WA to Boston, MA from $92

Return flight: Boston – Seattle

On Cheapflightsplus.com you will find 9 direct and 315 connecting flights from Seattle to Boston. You can compare airfare deals from 5 airlines and multiple travel sites from $92, book and save on cheap plane tickets and last minute offers. Also check out SEA-BOS flight schedule to find best flight time, convenient departure and arrival airports.

Find One-Way and Round-Trip Seattle to Boston Flight Deals

To find the cheapest one way airline ticket select the date with the lowest price on the calendar below and click «Find Flights». To search for round-trip flight deals click on the link «Check prices for return flights» and select the date of the return flight. Cheapest flights in November: $92 (one-way), $158 (round-trip).
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Full flight schedule will help you in detecting at what time planes fly from Seattle to Boston. You can also specify the concrete flights and airlines on the route and how long the flight actually is. Use the calendar for today, tomorrow or other specific date as some flights are available only on certain days of the week.
Departure Arrival Flight Details Flight Duration Price
08:21 — 16:45
08:21 — 16:45 HA6626 Hawaiian Airlines
Seattle — Boston
5h 24m
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from$180
08:21 — 16:45
08:21 — 16:45 AS306 Alaska Airlines
Seattle — Boston
5h 24m
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from$183
10:26 — 18:59
10:26 — 18:59 AS506 Alaska Airlines
Seattle — Boston
5h 33m
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from$117
10:58 — 19:19
10:58 — 19:19 HA6629 Hawaiian Airlines
Seattle — Boston
5h 21m
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from$114
10:58 — 19:19
10:58 — 19:19 AS818 Alaska Airlines
Seattle — Boston
5h 21m
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from$150
15:43 — 23:59
15:43 — 23:59 HA6627 Hawaiian Airlines
Seattle — Boston
5h 16m
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from$92
15:43 — 23:59
15:43 — 23:59 AS460 Alaska Airlines
Seattle — Boston
5h 16m
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from$96
23:40 — 08:00
+1 day
23:40 — 08:00 HA6628 Hawaiian Airlines
Seattle — Boston
5h 20m
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from$92
23:40 — 08:00
+1 day
23:40 — 08:00 AS536 Alaska Airlines
Seattle — Boston
5h 20m
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from$95
00:20 — 10:54
00:20 — 06:28 UA1832 United Airlines
Seattle — Chicago
59m stop
07:27 — 10:54 UA2067 United Airlines
Chicago — Boston
7h 34m
including layover
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from$133
00:20 — 12:50
00:20 — 06:28 UA1832 United Airlines
Seattle — Chicago
2h 47m stop
09:15 — 12:50 UA721 United Airlines
Chicago — Boston
9h 30m
including layover
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from$134
07:00 — 17:46
07:00 — 13:15 UA2618 United Airlines
Seattle — Chicago
1h stop
14:15 — 17:46 UA1693 United Airlines
Chicago — Boston
7h 46m
including layover
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from$132
07:00 — 18:03
07:00 — 13:14 UA1617 United Airlines
Seattle — Chicago
1h 11m stop
14:25 — 18:03 UA580 United Airlines
Chicago — Boston
8h 3m
including layover
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from$133
08:00 — 19:20
08:00 — 16:11 UA2398 United Airlines
Seattle — Washington D.C.
1h 22m stop
17:33 — 19:20 UA688 United Airlines
Washington D.C. — Boston
8h 20m
including layover
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from$133
08:57 — 19:53
08:57 — 12:43 UA1359 United Airlines
Seattle — Denver
1h 7m stop
13:50 — 19:53 UA1292 United Airlines
Denver — Boston
7h 56m
including layover
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from$133
11:11 — 23:46
11:11 — 14:58 UA1049 United Airlines
Seattle — Denver
2h 45m stop
17:43 — 23:46 UA1691 United Airlines
Denver — Boston
9h 35m
including layover
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from$134
11:55 — 22:53
11:55 — 20:25 UA2467 United Airlines
Seattle — Newark
1h 5m stop
21:30 — 22:53 UA1386 United Airlines
Newark — Boston
7h 58m
including layover
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from$132
12:43 — 23:46
12:43 — 16:30 UA1417 United Airlines
Seattle — Denver
1h 13m stop
17:43 — 23:46 UA1691 United Airlines
Denver — Boston
8h 3m
including layover
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from$134
12:43 — 23:46
12:43 — 16:30 UA1969 United Airlines
Seattle — Denver
1h 13m stop
17:43 — 23:46 UA1488 United Airlines
Denver — Boston
8h 3m
including layover
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from$137
13:55 — 00:52
+1 day
13:55 — 20:10 UA1298 United Airlines
Seattle — Chicago
1h 12m stop
21:22 — 00:52 UA1779 United Airlines
Chicago — Boston
7h 57m
including layover
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from$132
13:55 — 00:45
+1 day
13:49 — 20:05 UA2665 United Airlines
Seattle — Chicago
1h 5m stop
21:30 — 00:59 UA1779 United Airlines
Chicago — Boston
7h 50m
including layover
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from$133
17:59 — 07:40
+1 day
17:59 — 20:45 HA6882 Hawaiian Airlines
Seattle — San Diego
2h stop
22:45 — 07:40 HA6342 Hawaiian Airlines
San Diego — Boston
10h 41m
including layover
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from$112
17:59 — 07:40
+1 day
17:59 — 20:45 AS1098 Alaska Airlines
Seattle — San Diego
2h stop
22:45 — 07:40 AS366 Alaska Airlines
San Diego — Boston
10h 41m
including layover
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from$120
18:55 — 07:30
+1 day
18:55 — 21:47 HA6880 Hawaiian Airlines
Seattle — San Diego
58m stop
22:45 — 07:30 HA6497 Hawaiian Airlines
San Diego — Boston
9h 35m
including layover
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from$96
18:59 — 07:40
+1 day
18:59 — 21:45 HA6608 Hawaiian Airlines
Seattle — San Diego
1h stop
22:45 — 07:40 HA6342 Hawaiian Airlines
San Diego — Boston
9h 41m
including layover
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from$96
19:00 — 05:59
+1 day
19:00 — 22:51 UA1218 United Airlines
Seattle — Denver
1h 19m stop
23:59 — 06:01 UA2610 United Airlines
Denver — Boston
7h 59m
including layover
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from$133
19:02 — 06:01
+1 day
19:00 — 22:51 UA757 United Airlines
Seattle — Denver
1h 6m stop
23:59 — 06:01 UA297 United Airlines
Denver — Boston
7h 59m
including layover
Find flight
from$133
22:15 — 10:21
+1 day
22:15 — 06:12 UA2402 United Airlines
Seattle — Washington D.C.
2h 28m stop
08:40 — 10:21 UA641 United Airlines
Washington D.C. — Boston
9h 6m
including layover
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from$134
22:50 — 09:09
+1 day
22:50 — 07:06 UA341 United Airlines
Seattle — Newark
49m stop
07:55 — 09:09 UA1127 United Airlines
Newark — Boston
7h 19m
including layover
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from$132
06:00 — 09:09
+1 day
06:00 — 08:31 NK2626 Spirit Airlines
Seattle — Las Vegas
13h 23m stop
21:54 — 05:25 NK2297 Spirit Airlines
Las Vegas — Orlando
42m stop
06:07 — 09:09 NK2090 Spirit Airlines
Orlando — Boston
24h 9m
including layover
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from$123
06:00 — 14:44
+1 day
06:00 — 08:31 NK2626 Spirit Airlines
Seattle — Las Vegas
12h 53m stop
21:24 — 05:14 NK954 Spirit Airlines
Las Vegas — Miami
6h 15m stop
12:29 — 15:44 NK2126 Spirit Airlines
Miami — Boston
29h 44m
including layover
Find flight
from$123
*Departure and arrival times - local. Updated on June 2, 2025

Flight Information

Below we will explain in detail what the flights cost on the destination from Seattle to Boston depends on and how to choose the most interesting flight option for you.

Distance between Seattle and Boston is 4005 miles. Time difference between the cities is 3h. Airplanes depart 00:17 to 23:59 from 3 Seattle airports and arrive 00:17 to 23:59 to 4 Boston airports. Average flight time is 5h 21m.

  • The fastest flight 5h 16m
  • Average flight time 5h 21m
  • The earliest flight 00:17
  • The latest flight 23:59
  • Distance 2489 ml

The cheapest months to travel to Boston are may (from 123 $), july (from 123 $), june (from 123 $).

The most expensive months are december (from 303 $), september (from 177 $), october (from 177 $).

What is the lowest airfare Seattle to Boston?

The cheapest plane ticket found by our users is $92. This airfare is for economy class on one-way HA6627 flight by Hawaiian Airlines for June 6, 2025 which leaves Seattle-Tacoma Intl in Seattle at 15:43 am and arrives at Boston Logan at 23:59.

Economy class
$92
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Business class
?
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First class
?
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Popular Airlines on the Route

The flight Seattle — Boston is served by 5 regular airlines and 2 low-cost airlines. Most of the flights on this route are operated by Alaska Airlines - 53 departures per week at the price of from $ 95 . And the most expensive tickets are offered by United Airlines airline - from $ 477.

Direct flights

There are 9 nonstop flights on the route. The fastest direct flight is HA6627 by Hawaiian Airlines takes 5h 16m and the cheapest is HA6627 by Hawaiian Airlines for $92.

  • AS - Alaska Airlines
    from $95
    Find
  • HA - Hawaiian Airlines
    from $92
    Find
See more direct flights

Connecting Flights

There are 315 flights with layovers on the route. The fastest connecting flight is HA6833 by Hawaiian Airlines takes 7h and the cheapest is HA6627 by Hawaiian Airlines for $96.

  • AS - Alaska Airlines
    from $103
    Find
  • SY - Sun Country Airlines
    from $146
    Find
  • HA - Hawaiian Airlines
    from $96
    Find
  • UA - United Airlines
    from $132
    Find
  • NK - Spirit Airlines
    from $123
    Find
See more connecting flights

Airports

You can fly from Seattle to Boston from 3 airports (Boeing Field International Airport, Seattle-Tacoma Intl, Kenmore Air Harbor SPB).

Seattle airports

  • Boeing Field International Airport-BFI
    Find
  • Seattle-Tacoma Intl-SEA
    from $92
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  • Kenmore Air Harbor SPB-LKE
    Find

Boston airports

  • Boston City Heliport-JBC
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  • Boston RT128 Rail-ZRU
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  • Boston South Rail-ZTO
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  • Logan-BOS
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How to book a plane ticket yourself?

How to book an air ticket yourself?
  • Fill in the search parameters — cities of departure and destination, departure and return dates and click «Find flights»
  • Select the best flight that you like. Please, check the airports of departure and arrival. Select the best fare, but pay attention to the following flight details - airports of departure and arrival, flight duration and layovers. Please use filters and sort to find the best flight.
  • Click «Buy» when you are ready — our system will redirect you to the site that sells the selected flight ticket.
  • Fill in all passenger and payment information — passport and contact information, please double check all passengers’ names and make a payment for your itinerary.
  • 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.

    To find a plane ticket, please select dates.

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