Take off on cheap flights from Boston to Seattle, your adventure starts now!

Find cheap airline tickets from Boston to Seattle by date

  • any
  • July 2018
  • August 2018
  • September 2018
  • October 2018
  • November 2018
  • December 2018
  • January 2019
  • February 2019
  • March 2019
  • April 2019
  • May 2019
  • June 2019
  • any
  • July 2018
  • August 2018
  • September 2018
  • October 2018
  • November 2018
  • December 2018
  • January 2019
  • February 2019
  • March 2019
  • April 2019
  • May 2019
  • June 2019
  • price
  • month of departure
  • month of return
$217
outward: Oct 10, 2018
12:50p BOS » 7:23p SEA
Unknown Airline direct (6h33m)
inbound: Oct 17, 2018
7:56a SEA » 1:10p BOS
Unknown Airline direct (5h14m)
$219
outward: Oct 10, 2018
12:50p BOS » 7:23p SEA
Unknown Airline direct (6h33m)
inbound: Oct 17, 2018
7:56a SEA » 1:10p BOS
Unknown Airline direct (5h14m)
$219
outward: Sep 11, 2018
12:38p BOS » 6:51p SEA
JetBlue direct (6h13m)
inbound: Sep 26, 2018
8:59a SEA » 2:11p BOS
JetBlue direct (5h12m)
$219
outward: Sep 11, 2018
12:38p BOS » 6:51p SEA
JetBlue direct (6h13m)
inbound: Sep 26, 2018
8:59a SEA » 2:11p BOS
JetBlue direct (5h12m)
$226
outward: Sep 6, 2018
1:03a BOS » 8:57a SEA
Unknown Airline 1 stop (7h54m)
inbound: Sep 13, 2018
12:30a SEA » 6:08a BOS
Unknown Airline direct (5h38m)
$226
outward: Oct 3, 2018
11:20p BOS » 5:45a SEA
Unknown Airline direct (6h25m)
inbound: Oct 10, 2018
3:20p SEA » 11:47p BOS
Unknown Airline 1 stop (8h27m)
$227
outward: Sep 6, 2018
1:03a BOS » 8:57a SEA
Unknown Airline 1 stop (7h54m)
inbound: Sep 13, 2018
12:30a SEA » 6:08a BOS
Unknown Airline direct (5h38m)
$227
outward: Oct 3, 2018
11:20p BOS » 5:45a SEA
Unknown Airline direct (6h25m)
inbound: Oct 10, 2018
3:00p SEA » 11:49p BOS
Unknown Airline 1 stop (8h49m)
$231
outward: Sep 11, 2018
9:40p BOS » 10:02a SEA
Spirit Airlines 2 stops (12h22m)
inbound: Sep 26, 2018
12:15a SEA » 12:32p BOS
Spirit Airlines 1 stop (12h17m)
$236
outward: Sep 11, 2018
9:40p BOS » 10:02a SEA
Spirit Airlines 2 stops (12h22m)
inbound: Sep 26, 2018
12:15a SEA » 12:32p BOS
Spirit Airlines 1 stop (12h17m)
$236
outward: Sep 11, 2018
9:40p BOS » 10:02a SEA
Spirit Airlines 2 stops (12h22m)
inbound: Sep 26, 2018
12:15a SEA » 12:32p BOS
Spirit Airlines 1 stop (12h17m)
$239
outward: Aug 21, 2018
8:29p BOS » 10:25a SEA
Spirit Airlines 2 stops (13h56m)
inbound: Sep 5, 2018
5:12a SEA » 5:00p BOS
Spirit Airlines 2 stops (11h48m)
$239
outward: Dec 6, 2018
1:05p BOS » 7:43p SEA
Unknown Airline direct (6h38m)
inbound: Dec 13, 2018
8:30p SEA » 1:48a BOS
Unknown Airline direct (5h18m)
$239
outward: Dec 6, 2018
1:05p BOS » 7:43p SEA
Unknown Airline direct (6h38m)
inbound: Dec 13, 2018
8:30p SEA » 1:48a BOS
Unknown Airline direct (5h18m)
$239
outward: Dec 6, 2018
1:05p BOS » 7:43p SEA
Unknown Airline direct (6h38m)
inbound: Dec 13, 2018
8:30p SEA » 1:48a BOS
Unknown Airline direct (5h18m)
$239
outward: Aug 21, 2018
8:29p BOS » 10:25a SEA
Spirit Airlines 2 stops (13h56m)
inbound: Aug 29, 2018
5:12a SEA » 5:00p BOS
Spirit Airlines 2 stops (11h48m)
$240
outward: Sep 11, 2018
9:40p BOS » 10:02a SEA
Spirit Airlines 2 stops (12h22m)
inbound: Sep 26, 2018
12:15a SEA » 12:32p BOS
Spirit Airlines 1 stop (12h17m)
$240
outward: Sep 25, 2018
12:38p BOS » 6:51p SEA
JetBlue direct (6h13m)
inbound: Oct 8, 2018
8:59a SEA » 2:11p BOS
JetBlue direct (5h12m)
$241
outward: Oct 10, 2018
12:50p BOS » 7:23p SEA
Unknown Airline direct (6h33m)
inbound: Oct 17, 2018
7:56a SEA » 1:10p BOS
Unknown Airline direct (5h14m)
$241
outward: Sep 21, 2018
1:25p BOS » 7:45p SEA
Unknown Airline direct (6h20m)
inbound: Sep 29, 2018
12:30a SEA » 6:08a BOS
Unknown Airline direct (5h38m)
$241
outward: Sep 21, 2018
1:25p BOS » 7:45p SEA
Unknown Airline direct (6h20m)
inbound: Sep 29, 2018
12:30a SEA » 6:08a BOS
Unknown Airline direct (5h38m)
$241
outward: Sep 5, 2018
8:29p BOS » 10:25a SEA
Spirit Airlines 2 stops (13h56m)
inbound: Sep 13, 2018
12:15a SEA » 12:32p BOS
Spirit Airlines 1 stop (12h17m)
$241
outward: Sep 11, 2018
9:40p BOS » 10:02a SEA
Spirit Airlines 2 stops (12h22m)
inbound: Sep 26, 2018
12:15a SEA » 12:32p BOS
Spirit Airlines 1 stop (12h17m)
$241
outward: Sep 11, 2018
9:40p BOS » 10:02a SEA
Spirit Airlines 2 stops (12h22m)
inbound: Sep 26, 2018
12:15a SEA » 12:32p BOS
Spirit Airlines 1 stop (12h17m)
$241
outward: Sep 11, 2018
9:40p BOS » 10:02a SEA
Spirit Airlines 2 stops (12h22m)
inbound: Sep 26, 2018
12:15a SEA » 12:32p BOS
Spirit Airlines 1 stop (12h17m)
$241
outward: Sep 11, 2018
9:40p BOS » 10:02a SEA
Spirit Airlines 2 stops (12h22m)
inbound: Sep 26, 2018
12:15a SEA » 12:32p BOS
Spirit Airlines 1 stop (12h17m)
$241
outward: Sep 5, 2018
8:29p BOS » 10:25a SEA
Spirit Airlines 2 stops (13h56m)
inbound: Sep 13, 2018
12:15a SEA » 12:34p BOS
Spirit Airlines 1 stop (12h19m)
$241
outward: Sep 11, 2018
9:40p BOS » 10:02a SEA
Spirit Airlines 2 stops (12h22m)
inbound: Sep 26, 2018
12:15a SEA » 12:34p BOS
Spirit Airlines 1 stop (12h19m)
$241
outward: Sep 11, 2018
9:40p BOS » 10:02a SEA
Spirit Airlines 2 stops (12h22m)
inbound: Sep 26, 2018
12:15a SEA » 12:32p BOS
Spirit Airlines 1 stop (12h17m)
$242
outward: Sep 11, 2018
9:40p BOS » 10:02a SEA
Spirit Airlines 2 stops (12h22m)
inbound: Sep 26, 2018
12:15a SEA » 12:32p BOS
Spirit Airlines 1 stop (12h17m)
Return
Departure
27 July Jul Friday $retDate.dayShortName
28 July Jul Saturday $retDate.dayShortName
29 July Jul Sunday $retDate.dayShortName
30 July Jul Monday $retDate.dayShortName
31 July Jul Tuesday $retDate.dayShortName
01 August Aug Wednesday $retDate.dayShortName
02 August Aug Thursday $retDate.dayShortName
22 July Jul Sunday $outDate.dayShortName
$334 $357
23 July Jul Monday $outDate.dayShortName
$385 $345
24 July Jul Tuesday $outDate.dayShortName
25 July Jul Wednesday $outDate.dayShortName
26 July Jul Thursday $outDate.dayShortName
27 July Jul Friday $outDate.dayShortName
$453 $369 $396 $310 $335
28 July Jul Saturday $outDate.dayShortName
$354 $324 $394
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
  • July 2018
  • August 2018
  • September 2018
  • October 2018
  • November 2018
  • December 2018
  • January 2019
  • February 2019
  • March 2019
  • April 2019
  • May 2019
  • June 2019
  • all
  • Alaska Airlines
  • Delta Air Lines
  • JetBlue
  • Spirit Airlines
  • United Airlines
JetBlue
outbound: Sep 11, 2018
JetBlue direct
return: Sep 25, 2018
JetBlue direct
Spirit Airlines
outbound: Sep 11, 2018
Spirit Airlines 2 stops
return: Sep 25, 2018
Spirit Airlines 1 stop
Alaska Airlines
outbound: Dec 6, 2018
Alaska Airlines direct
return: Dec 13, 2018
Alaska Airlines direct
United Airlines
outbound: Oct 10, 2018
United Airlines 1 stop
return: Oct 17, 2018
United Airlines direct
Delta Air Lines
outbound: Dec 6, 2018
Delta Air Lines direct
return: Dec 13, 2018
Delta Air Lines 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:
  • Jul 15, 2018 4:19 PM, GMT-7
  • Weather:
  • min. 62ºF, max. 86ºF
  • Departure city:
  • Boston, USA
  • Airport(s):
  • Logan International Airport (BOS)
  • Manchester–Boston Regional Airport (MHT)
  • Local time:
  • Jul 15, 2018 7:19 PM, GMT-4
  • Weather:
  • min. 70ºF, max. 80ºF