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Find cheap airline tickets from Boston to Seattle by date

  • any
  • September 2018
  • October 2018
  • November 2018
  • December 2018
  • January 2019
  • February 2019
  • March 2019
  • April 2019
  • May 2019
  • June 2019
  • July 2019
  • August 2019
  • any
  • September 2018
  • October 2018
  • November 2018
  • December 2018
  • January 2019
  • February 2019
  • March 2019
  • April 2019
  • May 2019
  • June 2019
  • July 2019
  • August 2019
  • price
  • month of departure
  • month of return
$216
outward: Dec 5, 2018
11:00p BOS » 8:27a SEA
Spirit Airlines 1 stop (9h27m)
inbound: Dec 13, 2018
12:15a SEA » 11:48a BOS
Spirit Airlines 1 stop (11h33m)
$222
outward: Dec 5, 2018
11:00p BOS » 8:27a SEA
Spirit Airlines 1 stop (9h27m)
inbound: Dec 13, 2018
12:15a SEA » 11:48a BOS
Spirit Airlines 1 stop (11h33m)
$223
outward: Dec 5, 2018
11:00p BOS » 8:27a SEA
Spirit Airlines 1 stop (9h27m)
inbound: Dec 13, 2018
12:15a SEA » 11:48a BOS
Spirit Airlines 1 stop (11h33m)
$223
outward: Dec 5, 2018
11:00p BOS » 8:27a SEA
Spirit Airlines 1 stop (9h27m)
inbound: Dec 13, 2018
12:15a SEA » 11:48a BOS
Spirit Airlines 1 stop (11h33m)
$223
outward: Dec 5, 2018
11:00p BOS » 8:27a SEA
Spirit Airlines 1 stop (9h27m)
inbound: Dec 13, 2018
12:15a SEA » 11:48a BOS
Spirit Airlines 1 stop (11h33m)
$223
outward: Dec 5, 2018
11:00p BOS » 8:27a SEA
Spirit Airlines 1 stop (9h27m)
inbound: Dec 13, 2018
12:15a SEA » 11:48a BOS
Spirit Airlines 1 stop (11h33m)
$223
outward: Dec 5, 2018
11:00p BOS » 8:27a SEA
Spirit Airlines 1 stop (9h27m)
inbound: Dec 13, 2018
12:15a SEA » 11:48a BOS
Spirit Airlines 1 stop (11h33m)
$224
outward: Dec 5, 2018
11:00p BOS » 8:27a SEA
Spirit Airlines 1 stop (9h27m)
inbound: Dec 13, 2018
12:15a SEA » 11:48a BOS
Spirit Airlines 1 stop (11h33m)
$224
outward: Dec 5, 2018
11:00p BOS » 8:27a SEA
Spirit Airlines 1 stop (9h27m)
inbound: Dec 13, 2018
12:15a SEA » 11:48a BOS
Spirit Airlines 1 stop (11h33m)
$224
outward: Dec 5, 2018
11:00p BOS » 8:27a SEA
Spirit Airlines 1 stop (9h27m)
inbound: Dec 13, 2018
12:15a SEA » 11:48a BOS
Spirit Airlines 1 stop (11h33m)
$224
outward: Dec 5, 2018
11:00p BOS » 8:27a SEA
Spirit Airlines 1 stop (9h27m)
inbound: Dec 13, 2018
12:15a SEA » 11:48a BOS
Spirit Airlines 1 stop (11h33m)
$225
outward: Nov 8, 2018
1:20a BOS » 7:49a SEA
JetBlue direct (6h29m)
inbound: Nov 15, 2018
2:20a SEA » 11:48a BOS
Spirit Airlines 1 stop (9h28m)
$226
outward: Dec 5, 2018
11:00p BOS » 8:27a SEA
Spirit Airlines 1 stop (9h27m)
inbound: Dec 13, 2018
12:15a SEA » 11:48a BOS
Spirit Airlines 1 stop (11h33m)
$227
outward: Nov 8, 2018
1:20a BOS » 7:49a SEA
JetBlue direct (6h29m)
inbound: Nov 15, 2018
12:15a SEA » 11:48a BOS
Spirit Airlines 1 stop (11h33m)
$227
outward: Nov 7, 2018
1:10p BOS » 7:34p SEA
JetBlue direct (6h24m)
inbound: Nov 15, 2018
2:20a SEA » 11:48a BOS
Spirit Airlines 1 stop (9h28m)
$227
outward: Nov 7, 2018
1:00p BOS » 7:37p SEA
Alaska Airlines direct (6h37m)
inbound: Nov 15, 2018
2:20a SEA » 11:48a BOS
Spirit Airlines 1 stop (9h28m)
$227
outward: Nov 7, 2018
1:10p BOS » 7:34p SEA
JetBlue direct (6h24m)
inbound: Nov 15, 2018
2:20a SEA » 11:48a BOS
Spirit Airlines 1 stop (9h28m)
$227
outward: Nov 7, 2018
1:00p BOS » 7:37p SEA
Alaska Airlines direct (6h37m)
inbound: Nov 15, 2018
2:20a SEA » 11:48a BOS
Spirit Airlines 1 stop (9h28m)
$229
outward: Nov 7, 2018
1:00p BOS » 7:37p SEA
Alaska Airlines direct (6h37m)
inbound: Nov 15, 2018
2:20a SEA » 11:48a BOS
Spirit Airlines 1 stop (9h28m)
$230
outward: Nov 6, 2018
1:10p BOS » 7:34p SEA
JetBlue direct (6h24m)
inbound: Nov 11, 2018
8:59a SEA » 2:07p BOS
JetBlue direct (5h08m)
$230
outward: Sep 23, 2018
1:31a BOS » 7:49a SEA
JetBlue direct (6h18m)
inbound: Sep 26, 2018
8:59a SEA » 2:11p BOS
JetBlue direct (5h12m)
$230
outward: Nov 7, 2018
12:50a BOS » 7:23a SEA
Alaska Airlines direct (6h33m)
inbound: Nov 11, 2018
6:30a SEA » 11:48a BOS
Alaska Airlines direct (5h18m)
$232
outward: Oct 16, 2018
12:38p BOS » 6:51p SEA
JetBlue direct (6h13m)
inbound: Oct 24, 2018
8:59a SEA » 2:11p BOS
JetBlue direct (5h12m)
$232
outward: Nov 7, 2018
1:10p BOS » 7:34p SEA
JetBlue direct (6h24m)
inbound: Nov 15, 2018
8:59a SEA » 2:07p BOS
JetBlue direct (5h08m)
$234
outward: Nov 7, 2018
1:00p BOS » 7:37p SEA
Alaska Airlines direct (6h37m)
inbound: Nov 15, 2018
2:20a SEA » 11:48a BOS
Spirit Airlines 1 stop (9h28m)
$239
outward: Nov 8, 2018
1:20a BOS » 7:49a SEA
JetBlue direct (6h29m)
inbound: Nov 15, 2018
12:15a SEA » 11:48a BOS
Spirit Airlines 1 stop (11h33m)
$239
outward: Nov 8, 2018
1:20a BOS » 7:49a SEA
JetBlue direct (6h29m)
inbound: Nov 15, 2018
12:15a SEA » 11:48a BOS
Spirit Airlines 1 stop (11h33m)
$239
outward: Nov 8, 2018
1:20a BOS » 7:49a SEA
JetBlue direct (6h29m)
inbound: Nov 15, 2018
12:15a SEA » 11:48a BOS
Spirit Airlines 1 stop (11h33m)
$240
outward: Nov 7, 2018
1:10p BOS » 7:34p SEA
JetBlue direct (6h24m)
inbound: Nov 15, 2018
12:15a SEA » 11:48a BOS
Spirit Airlines 1 stop (11h33m)
$240
outward: Nov 7, 2018
1:10p BOS » 7:34p SEA
JetBlue direct (6h24m)
inbound: Nov 15, 2018
12:15a SEA » 11:48a BOS
Spirit Airlines 1 stop (11h33m)
Return
Departure
04 October Oct Thursday $retDate.dayShortName
05 October Oct Friday $retDate.dayShortName
06 October Oct Saturday $retDate.dayShortName
07 October Oct Sunday $retDate.dayShortName
08 October Oct Monday $retDate.dayShortName
09 October Oct Tuesday $retDate.dayShortName
10 October Oct Wednesday $retDate.dayShortName
22 September Sep Saturday $outDate.dayShortName
23 September Sep Sunday $outDate.dayShortName
24 September Sep Monday $outDate.dayShortName
25 September Sep Tuesday $outDate.dayShortName
$265 $260
26 September Sep Wednesday $outDate.dayShortName
$289 $265
27 September Sep Thursday $outDate.dayShortName
$278 $264
28 September Sep Friday $outDate.dayShortName
$253 $280
Choose when you'd like to depart to Seattle (USA):
Find the cheapest Boston Seattle flight by browsing the dates below to find alternative flight prices found in the last days. To launch a flight search for Boston - Seattle with these new dates, click on an offer. Want to depart from another city? Choose: Las Vegas - Seattle New York - Seattle London - Seattle Miami - Seattle Chicago - Seattle San Francisco - Seattle See more routes

Airlines operating flights from Boston to Seattle

  • any
  • September 2018
  • October 2018
  • November 2018
  • December 2018
  • January 2019
  • February 2019
  • March 2019
  • April 2019
  • May 2019
  • June 2019
  • July 2019
  • August 2019
  • all
  • Alaska Airlines
  • Delta Air Lines
  • JetBlue
  • Spirit Airlines
  • United Airlines
JetBlue
outbound: Oct 12, 2018
JetBlue direct
return: Oct 15, 2018
JetBlue direct
Spirit Airlines
outbound: Sep 26, 2018
Spirit Airlines 1 stop
return: Oct 6, 2018
Spirit Airlines 1 stop
Alaska Airlines
outbound: Nov 3, 2018
Alaska Airlines direct
return: Nov 14, 2018
Alaska Airlines direct
United Airlines
outbound: Oct 25, 2018
United Airlines direct
return: Oct 26, 2018
United Airlines direct
Delta Air Lines
outbound: Nov 6, 2018
Delta Air Lines 1 stop
return: Nov 10, 2018
Alaska Airlines direct

Travel tips for flights Boston - Seattle

Average flight duration: 5h48m (direct flight)

  • Arrival city:
  • Seattle, USA
  • Airport(s):
  • Kenmore Air Harbor Seaplane Base (LKE)
  • Seattle–Tacoma International Airport (SEA)
  • Local time:
  • Sep 19, 2018 9:54 PM, GMT-7
  • Weather:
  • min. 55ºF, max. 63ºF
  • Departure city:
  • Boston, USA
  • Airport(s):
  • Logan International Airport (BOS)
  • Manchester–Boston Regional Airport (MHT)
  • Local time:
  • Sep 20, 2018 12:54 AM, GMT-4
  • Weather:
  • min. 60ºF, max. 68ºF