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Flights from Seattle to Boston – Direct & connecting routes

Non-stop airlines Connecting flights Show map Price search

SEA to BOS flights and routes map SEA to BOS – All flight route options from Seattle Tacoma International, Washington, USA to Boston Logan International Airport, Massachusetts, USA. These flights are operated by 10 different airlines. Fly non-stop or choose from 29 different connecting flights. The shortest flight time is 5 hours and 17 minutes. See the full flight schedule and time table, including departure times, airlines and stopover details to find the best option for you.

From
To
USA SEA Seattle Tacoma Seattle, WA, USA
USA BOS Boston Logan Airport, MA, USA
SEA
Seattle Tacoma
USASeattle, WA, USA
Boston Logan Airport
USABoston, MA, USA
BOS
3 direct routes found »
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52 routes with 1 stop found »
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Non-stop route options:

Duration

JetBlue Airways
Non-stop with JetBlue Airways. 3-4 flights per day.

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5h 17m

JetBlue Airways
Non-stop with JetBlue Airways.
5h 17m
3-4 flights per day.
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Alaska Airlines
Non-stop with Alaska Airlines. 4 flights per day.

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5h 25m

Alaska Airlines
Non-stop with Alaska Airlines.
5h 25m
4 flights per day.
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Delta Air Lines
Non-stop with Delta Air Lines. 2-3 flights per day.

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5h 32m

Delta Air Lines
Non-stop with Delta Air Lines.
5h 32m
2-3 flights per day.
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1 stop route options with the same airline:

Duration

Via Detroit DTW
1 stop with Delta Air Lines. 3-5 flights per day.

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6h 58m

Via Detroit DTW
1 stop with Delta Air Lines.
6h 58m
3-5 flights per day.
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Via Saint Louis STL
1 stop with Southwest Airlines. 0-1 flights per day.

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7h 38m

Via Saint Louis STL
1 stop with Southwest Airlines.
7h 38m
0-1 flights per day.
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Via Minneapolis MSP
1 stop with Delta Air Lines. 4-5 flights per day.

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7h 38m

Via Minneapolis MSP
1 stop with Delta Air Lines.
7h 38m
4-5 flights per day.
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Via Minneapolis MSP
1 stop with Sun Country Airlines. 0-1 flights per day.

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7h 38m

Via Minneapolis MSP
1 stop with Sun Country Airlines.
7h 38m
0-1 flights per day.
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Via Chicago MDW
1 stop with Southwest Airlines. 2-3 flights per day.

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7h 40m

Via Chicago MDW
1 stop with Southwest Airlines.
7h 40m
2-3 flights per day.
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Via Portland PDX
1 stop with Alaska Airlines. 3 flights per day.

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7h 45m

Via Portland PDX
1 stop with Alaska Airlines.
7h 45m
3 flights per day.
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Via Denver DEN
1 stop with Southwest Airlines. 0-2 flights per day.

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7h 50m

Via Denver DEN
1 stop with Southwest Airlines.
7h 50m
0-2 flights per day.
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Via Chicago ORD
1 stop with American Airlines. 3-4 flights per day.

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7h 57m

Via Chicago ORD
1 stop with American Airlines.
7h 57m
3-4 flights per day.
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Via Baltimore BWI
1 stop with Southwest Airlines.

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8h 00m

Via Baltimore BWI
1 stop with Southwest Airlines.
8h 00m
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Via Salt Lake City SLC
1 stop with Delta Air Lines. 2-3 flights per day.

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8h 01m

Via Salt Lake City SLC
1 stop with Delta Air Lines.
8h 01m
2-3 flights per day.
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Via Dulles IAD
1 stop with United Airlines. 4-6 flights per day.

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8h 02m

Via Dulles IAD
1 stop with United Airlines.
8h 02m
4-6 flights per day.
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Via Denver DEN
1 stop with United Airlines. 3-10 flights per day.

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8h 06m

Via Denver DEN
1 stop with United Airlines.
8h 06m
3-10 flights per day.
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Via Philadelphia PHL
1 stop with American Airlines. 2 flights per day.

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8h 07m

Via Philadelphia PHL
1 stop with American Airlines.
8h 07m
2 flights per day.
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Via Chicago ORD
1 stop with United Airlines. 4-9 flights per day.

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8h 22m

Via Chicago ORD
1 stop with United Airlines.
8h 22m
4-9 flights per day.
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Via Cincinnati CVG
1 stop with Delta Air Lines.
Begins in 11/9

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8h 26m

Begins in 11/9
Via Cincinnati CVG
1 stop with Delta Air Lines.
8h 26m
Begins in 11/9
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Via Washington DCA
1 stop with Delta Air Lines.

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8h 27m

Via Washington DCA
1 stop with Delta Air Lines.
8h 27m
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Via New York JFK
1 stop with Delta Air Lines. 3 flights per day.

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8h 42m

Via New York JFK
1 stop with Delta Air Lines.
8h 42m
3 flights per day.
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Via Charlotte CLT
1 stop with American Airlines. 3-4 flights per day.

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9h 03m

Via Charlotte CLT
1 stop with American Airlines.
9h 03m
3-4 flights per day.
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Via Atlanta ATL
1 stop with Delta Air Lines. 5-6 flights per day.

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9h 04m

Via Atlanta ATL
1 stop with Delta Air Lines.
9h 04m
5-6 flights per day.
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Via New York JFK
1 stop with JetBlue Airways. 0-1 flights per day.

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9h 05m

Via New York JFK
1 stop with JetBlue Airways.
9h 05m
0-1 flights per day.
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Via Dallas DFW
1 stop with American Airlines. 6-7 flights per day.

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9h 08m

Via Dallas DFW
1 stop with American Airlines.
9h 08m
6-7 flights per day.
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Via New York EWR
1 stop with United Airlines. 3-6 flights per day.

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9h 11m

Via New York EWR
1 stop with United Airlines.
9h 11m
3-6 flights per day.
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Via Nashville BNA
1 stop with Southwest Airlines. 0-1 flights per day.
Only saturdays

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9h 20m

Only saturdays
Via Nashville BNA
1 stop with Southwest Airlines.
9h 20m
0-1 flights per day.
Only saturdays
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Via Dallas DFW
1 stop with Delta Air Lines. 0-1 flights per day.
Only sundays

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9h 20m

Only sundays
Via Dallas DFW
1 stop with Delta Air Lines.
9h 20m
0-1 flights per day.
Only sundays
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Via Dallas DAL
1 stop with Southwest Airlines. 0-1 flights per day.
Only sundays

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9h 25m

Only sundays
Via Dallas DAL
1 stop with Southwest Airlines.
9h 25m
0-1 flights per day.
Only sundays
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1 stop route options with codeshare or different airlines:

Duration

Via Cleveland CLE With Alaska Airlines & Delta Air Lines

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7h 27m

Via Cleveland CLE
7h 27m
With Alaska Airlines & Delta Air Lines
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Via Cincinnati CVG 1 stop with American Airlines. 0-1 flights per day.
CODESHARE

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7h 33m

Via Cincinnati CVG
7h 33m
1 stop with American Airlines. 0-1 flights per day.
CODESHARE
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Via Baltimore BWI With Alaska Airlines & Delta Air Lines 0-1 flights per day.

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7h 36m

Via Baltimore BWI
7h 36m
With Alaska Airlines & Delta Air Lines 0-1 flights per day.
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Via Indianapolis IND 1 stop with American Airlines. 0-2 flights per day.
CODESHARE

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7h 41m

Via Indianapolis IND
7h 41m
1 stop with American Airlines. 0-2 flights per day.
CODESHARE
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Via Minneapolis MSP With Alaska Airlines & Delta Air Lines 2-3 flights per day.

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7h 44m

Via Minneapolis MSP
7h 44m
With Alaska Airlines & Delta Air Lines 2-3 flights per day.
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Via Pittsburgh PIT With Alaska Airlines & Delta Air Lines
Only thursdays

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7h 50m

Only thursdays
Via Pittsburgh PIT
7h 50m
With Alaska Airlines & Delta Air Lines
Only thursdays
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Via Saint Louis STL 1 stop with American Airlines.
CODESHARE

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8h 03m

Via Saint Louis STL
8h 03m
1 stop with American Airlines.
CODESHARE
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Via Columbus CMH 1 stop with American Airlines. 0-1 flights per day.
CODESHARE

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8h 05m

Via Columbus CMH
8h 05m
1 stop with American Airlines. 0-1 flights per day.
CODESHARE
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Via Washington DCA With Alaska Airlines & American Airlines 0-1 flights per day.
Begins in 6/8

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8h 07m

Begins in 6/8
Via Washington DCA
8h 07m
With Alaska Airlines & American Airlines 0-1 flights per day.
Begins in 6/8
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Via Kansas City MCI With American Airlines & Delta Air Lines
CODESHARE

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8h 18m

Via Kansas City MCI
8h 18m
With American Airlines & Delta Air Lines
CODESHARE
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Via Philadelphia PHL With American Airlines & Delta Air Lines 0-1 flights per day.
Begins in 3/9

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8h 26m

Begins in 3/9
Via Philadelphia PHL
8h 26m
With American Airlines & Delta Air Lines 0-1 flights per day.
Begins in 3/9
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Via Chicago ORD With American Airlines & Delta Air Lines 0-2 flights per day.

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8h 41m

Via Chicago ORD
8h 41m
With American Airlines & Delta Air Lines 0-2 flights per day.
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Via Detroit DTW With American Airlines & JetBlue Airways 0-1 flights per day.
CODESHARE

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8h 41m

Via Detroit DTW
8h 41m
With American Airlines & JetBlue Airways 0-1 flights per day.
CODESHARE
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Via New York JFK With Alaska Airlines & American Airlines 2 flights per day.

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8h 44m

Via New York JFK
8h 44m
With Alaska Airlines & American Airlines 2 flights per day.
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Via Salt Lake City SLC With Alaska Airlines & Delta Air Lines 1-3 flights per day.

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8h 45m

Via Salt Lake City SLC
8h 45m
With Alaska Airlines & Delta Air Lines 1-3 flights per day.
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Via Milwaukee MKE With American Airlines & JetBlue Airways
CODESHARE

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8h 46m

Via Milwaukee MKE
8h 46m
With American Airlines & JetBlue Airways
CODESHARE
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Via Bozeman BZN With Alaska Airlines & Delta Air Lines 0-1 flights per day.
Sat & Sun

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8h 47m

Sat & Sun
Via Bozeman BZN
8h 47m
With Alaska Airlines & Delta Air Lines 0-1 flights per day.
Sat & Sun
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Via Denver DEN With Alaska Airlines & United Airlines 3-4 flights per day.

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8h 48m

Via Denver DEN
8h 48m
With Alaska Airlines & United Airlines 3-4 flights per day.
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Via Nashville BNA With Alaska Airlines & Delta Air Lines 2 flights per day.

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9h 10m

Via Nashville BNA
9h 10m
With Alaska Airlines & Delta Air Lines 2 flights per day.
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Via New York EWR With American Airlines & United Airlines 0-1 flights per day.
CODESHARE

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9h 14m

Via New York EWR
9h 14m
With American Airlines & United Airlines 0-1 flights per day.
CODESHARE
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Via Dallas DFW With American Airlines & Delta Air Lines 1-3 flights per day.

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9h 16m

Via Dallas DFW
9h 16m
With American Airlines & Delta Air Lines 1-3 flights per day.
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Via Dulles IAD With Delta Air Lines & United Airlines 0-1 flights per day.

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9h 36m

Via Dulles IAD
9h 36m
With Delta Air Lines & United Airlines 0-1 flights per day.
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Via Raleigh/Durham RDU With Alaska Airlines & Delta Air Lines 0-2 flights per day.

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9h 44m

Via Raleigh/Durham RDU
9h 44m
With Alaska Airlines & Delta Air Lines 0-2 flights per day.
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Via Charleston CHS With Alaska Airlines & Delta Air Lines 0-1 flights per day.

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9h 45m

Via Charleston CHS
9h 45m
With Alaska Airlines & Delta Air Lines 0-1 flights per day.
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Via Charlotte CLT With American Airlines & Delta Air Lines 1-2 flights per day.

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9h 46m

Via Charlotte CLT
9h 46m
With American Airlines & Delta Air Lines 1-2 flights per day.
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Via Atlanta ATL With Alaska Airlines & Delta Air Lines 2 flights per day.

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9h 53m

Via Atlanta ATL
9h 53m
With Alaska Airlines & Delta Air Lines 2 flights per day.
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Via Portland PDX With Alaska Airlines & United Airlines 1-2 flights per day.

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11h 00m

Via Portland PDX
11h 00m
With Alaska Airlines & United Airlines 1-2 flights per day.
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Seattle to Boston flights

There are over 32 airlines and as many as 1440 flights every week to this destination. You can fly non-stop to Boston (BOS) from Seattle (SEA) with Alaska Airlines, JetBlue Airways or Delta Air Lines but if a stopover option suits you better you can choose to fly via Detroit, Cleveland or any other of the 29 alternatives with connectiing airports.

Seattle to Boston with Alaska Airlines

You can fly non-stop every weekday with flights departing between 8:00 am and 11:00 pm. You also have the option to do a transit flight via Portland. Alaska Airlines is a member of the air alliance OneWorld.

With Sun Country Airlines

If you fly from Seattle with Sun Country Airlines you will do a stopover in Minneapolis, MSP before reaching Boston. This flight trip will take 7 hours and 38 minutes and you can fly every day of the week except Mondays with departures at 23:55, 23:57 or 23:59.

Distance & flight times: Seattle Airport to Logan Airport

The shortest flight time between SEA and BOS is 5 hours and 25 minutes.

ViaTotal flight timeLayover timeDistance
Direct5h 25m-2502 miles (4026 km)
DTW Detroit6h 58m35m2565 miles (4127 km)
CLE Cleveland7h 27m37m2591 miles (4169 km)
CVG Cincinnati7h 33m1h 23m2724 miles (4383 km)
BWI Baltimore7h 36m47m2713 miles (4365 km)
MDW Chicago7h 40m2h 30m2601 miles (4185 km)
IND Indianapolis7h 41m2h 18m2691 miles (4330 km)
MSP Minneapolis7h 44m2h 44m2529 miles (4069 km)
PDX Portland7h 45m1h 16m2674 miles (4302 km)
PIT Pittsburgh7h 50m58m2628 miles (4228 km)
ORD Chicago7h 57m2h 59m2594 miles (4174 km)
STL Saint Louis8h 3m1h 21m2763 miles (4446 km)
CMH Columbus8h 5m1h 40m2664 miles (4286 km)
DCA Washington8h 7m1h 45m2735 miles (4401 km)
PHL Philadelphia8h 7m40m2666 miles (4290 km)
MCI Kansas City8h 18m1h 38m2754 miles (4431 km)
JFK New York8h 44m2h 0m2615 miles (4208 km)
SLC Salt Lake City8h 45m2h 45m2802 miles (4508 km)
MKE Milwaukee8h 46m2h 38m2561 miles (4121 km)
BZN Bozeman8h 47m2h 39m2540 miles (4087 km)
DEN Denver8h 48m2h 12m2787 miles (4484 km)
CLT Charlotte9h 3m1h 36m3017 miles (4854 km)
DFW Dallas9h 8m2h 47m3234 miles (5204 km)
BNA Nashville9h 10m2h 18m2930 miles (4714 km)
EWR New York9h 14m2h 12m2609 miles (4198 km)
DAL Dallas9h 25m1h 50m3237 miles (5208 km)
IAD Dulles9h 36m3h 0m2727 miles (4388 km)
RDU Raleigh/Durham9h 44m45m2977 miles (4790 km)
CHS Charleston9h 45m2h 25m3247 miles (5224 km)
ATL Atlanta9h 53m2h 48m3140 miles (5052 km)
The flight times and layover times in the table above are approximate and may vary depending on flight number, aircraft, airline, weather, and time of day.SEA-BOS flight routesSeattle to Boston flight routes illustrated on a map.
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You can fly non-stop from Seattle (SEA) to Boston (BOS) with Alaska Airlines, JetBlue Airways or Delta Air Lines. The flight takes approximately 5 hours and 25 minutes. If you travel with a connecting flight instead, for example via Detroit, the total flight time will be 6 hours and 58 minutes.

If you're interested in direct flights, Alaska Airlines, JetBlue Airways or Delta Air Lines is available. For flights with stopovers, Delta Air Lines, Alaska Airlines, American Airlines, Southwest Airlines, JetBlue Airways or United Airlines is also an option.

The flight time between Seattle Tacoma (SEA) and Boston Logan International Airport (BOS) is approximately 5 hours and 25 minutes. The distance between the two airports is 2565 miles (or 4127 kilometers).

Yes, you can fly non-stop to BOS from SEA with Alaska Airlines, JetBlue Airways or Delta Air Lines.

A codeshare agreement means that cooperating airlines are able to sell seats on each other’s flights. This means that you are able to travel to more destinations than your airline of choice normally offers. Codeshare flights are also beneficial because of the seamless transits you can get with connecting flights from the same airline. The downside of choosing a codeshare flight can be that you in some cases can’t upgrade codeshare flights or use elite benefits.

A connecting or transit flight means that you reach your final destination through two or more flights – in other words a non-direct flight. You will change to a new aircraft after your first flight, this may include moving to another terminal at the airport aswell. The time required to transfer passengers and luggage between flights is called Minimum Connecting Time (MCT) and are always taken into account here on Flightroutes.com.

If you bought your whole flight on a single ticket, the airline will book you on the next available connecting flight.

With connecting flights, checked in luggage is most commonly forwarded to your final destination when buying a single ticket for both flights.

If you miss your connecting flight due to circumstances outside your control such as your first flight being delayed, you should turn to your airline who will provide you with a seat on the next available flight. This is usually done free of charge, and only applies if you purchased your trip as one ticket. If the next connecting flight is the following day, the airline usually provides accommodation and meals.
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