Browse by airline

A fast, easy-to-use flight route finder

Type in your origin and destination city and we will give you the best flight route options based on flight time and connection time along with airline and airports delays.

Flights from Boston to Seattle – Direct & connecting routes

Non-stop airlines Connecting flights Show map Price search

BOS to SEA flights and routes map BOS to SEA – All flight route options from Boston Logan International Airport, Massachusetts, USA to Seattle Tacoma International, Washington, USA. These flights are operated by 10 different airlines. Fly non-stop or choose from 33 different connecting flights. The shortest flight time is 6 hours and 19 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 BOS Boston Logan Airport Boston, MA, USA
USA SEA Seattle Tacoma , WA, USA
BOS
Boston Logan Airport
USABoston, MA, USA
Seattle Tacoma
USASeattle, WA, USA
SEA
3 direct routes found »
SHOW FLIGHTS
56 routes with 1 stop found »
SHOW FLIGHTS

Non-stop route options:

Duration

Alaska Airlines
Non-stop with Alaska Airlines. 4 flights per day.

SHOW SCHEDULE
6h 19m

Alaska Airlines
Non-stop with Alaska Airlines.
6h 19m
4 flights per day.
SHOW SCHEDULE
JetBlue Airways
Non-stop with JetBlue Airways. 2 flights per day.

SHOW SCHEDULE
6h 20m

JetBlue Airways
Non-stop with JetBlue Airways.
6h 20m
2 flights per day.
SHOW SCHEDULE
Delta Air Lines
Non-stop with Delta Air Lines. 2-3 flights per day.

SHOW SCHEDULE
6h 31m

Delta Air Lines
Non-stop with Delta Air Lines.
6h 31m
2-3 flights per day.
SHOW SCHEDULE
CHECK PRICE FOR NON-STOP FLIGHTS
Ad

1 stop route options with the same airline:

Duration

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

SHOW SCHEDULE
8h 14m

Via Detroit DTW
1 stop with Delta Air Lines.
8h 14m
3 flights per day.
SHOW SCHEDULE
Via Minneapolis MSP
1 stop with Delta Air Lines. 5-6 flights per day.

SHOW SCHEDULE
8h 15m

Via Minneapolis MSP
1 stop with Delta Air Lines.
8h 15m
5-6 flights per day.
SHOW SCHEDULE
Via Minneapolis MSP
1 stop with Sun Country Airlines. 0-1 flights per day.

SHOW SCHEDULE
8h 32m

Via Minneapolis MSP
1 stop with Sun Country Airlines.
8h 32m
0-1 flights per day.
SHOW SCHEDULE
Via Philadelphia PHL
1 stop with American Airlines. 2 flights per day.

SHOW SCHEDULE
8h 43m

Via Philadelphia PHL
1 stop with American Airlines.
8h 43m
2 flights per day.
SHOW SCHEDULE
Via Washington DCA
1 stop with Delta Air Lines. 1-2 flights per day.

SHOW SCHEDULE
8h 44m

Via Washington DCA
1 stop with Delta Air Lines.
8h 44m
1-2 flights per day.
SHOW SCHEDULE
Via Portland PDX
1 stop with Alaska Airlines. 2 flights per day.

SHOW SCHEDULE
8h 45m

Via Portland PDX
1 stop with Alaska Airlines.
8h 45m
2 flights per day.
SHOW SCHEDULE
Via Columbus CMH
1 stop with American Airlines.
Begins in 26/9

SHOW SCHEDULE
8h 49m

Begins in 26/9
Via Columbus CMH
1 stop with American Airlines.
8h 49m
Begins in 26/9
SHOW SCHEDULE
Via Chicago MDW
1 stop with Southwest Airlines. 2-3 flights per day.

SHOW SCHEDULE
8h 50m

Via Chicago MDW
1 stop with Southwest Airlines.
8h 50m
2-3 flights per day.
SHOW SCHEDULE
Via Denver DEN
1 stop with Southwest Airlines. 0-2 flights per day.

SHOW SCHEDULE
8h 55m

Via Denver DEN
1 stop with Southwest Airlines.
8h 55m
0-2 flights per day.
SHOW SCHEDULE
Via Dulles IAD
1 stop with United Airlines. 4 flights per day.

SHOW SCHEDULE
9h 08m

Via Dulles IAD
1 stop with United Airlines.
9h 08m
4 flights per day.
SHOW SCHEDULE
Via Saint Louis STL
1 stop with Southwest Airlines. 0-1 flights per day.
Mon,Thu & Fri

SHOW SCHEDULE
9h 08m

Mon,Thu & Fri
Via Saint Louis STL
1 stop with Southwest Airlines.
9h 08m
0-1 flights per day.
Mon,Thu & Fri
SHOW SCHEDULE
Via Nashville BNA
1 stop with Southwest Airlines. 0-1 flights per day.

SHOW SCHEDULE
9h 10m

Via Nashville BNA
1 stop with Southwest Airlines.
9h 10m
0-1 flights per day.
SHOW SCHEDULE
Via New York JFK
1 stop with JetBlue Airways. 1-2 flights per day.

SHOW SCHEDULE
9h 13m

Via New York JFK
1 stop with JetBlue Airways.
9h 13m
1-2 flights per day.
SHOW SCHEDULE
Via Chicago ORD
1 stop with United Airlines. 5-7 flights per day.

SHOW SCHEDULE
9h 19m

Via Chicago ORD
1 stop with United Airlines.
9h 19m
5-7 flights per day.
SHOW SCHEDULE
Via Chicago ORD
1 stop with American Airlines. 3-5 flights per day.

SHOW SCHEDULE
9h 21m

Via Chicago ORD
1 stop with American Airlines.
9h 21m
3-5 flights per day.
SHOW SCHEDULE
Via Denver DEN
1 stop with United Airlines. 3-6 flights per day.

SHOW SCHEDULE
9h 23m

Via Denver DEN
1 stop with United Airlines.
9h 23m
3-6 flights per day.
SHOW SCHEDULE
Via Salt Lake City SLC
1 stop with Delta Air Lines. 2-3 flights per day.

SHOW SCHEDULE
9h 26m

Via Salt Lake City SLC
1 stop with Delta Air Lines.
9h 26m
2-3 flights per day.
SHOW SCHEDULE
Via Charlotte CLT
1 stop with American Airlines. 4-5 flights per day.

SHOW SCHEDULE
9h 28m

Via Charlotte CLT
1 stop with American Airlines.
9h 28m
4-5 flights per day.
SHOW SCHEDULE
Via New York EWR
1 stop with United Airlines. 2-3 flights per day.

SHOW SCHEDULE
9h 29m

Via New York EWR
1 stop with United Airlines.
9h 29m
2-3 flights per day.
SHOW SCHEDULE
Via Baltimore BWI
1 stop with Southwest Airlines. 1-3 flights per day.

SHOW SCHEDULE
9h 30m

Via Baltimore BWI
1 stop with Southwest Airlines.
9h 30m
1-3 flights per day.
SHOW SCHEDULE
Via Dallas DFW
1 stop with American Airlines. 6-8 flights per day.

SHOW SCHEDULE
9h 47m

Via Dallas DFW
1 stop with American Airlines.
9h 47m
6-8 flights per day.
SHOW SCHEDULE
Via New York JFK
1 stop with Delta Air Lines. 1-2 flights per day.

SHOW SCHEDULE
9h 49m

Via New York JFK
1 stop with Delta Air Lines.
9h 49m
1-2 flights per day.
SHOW SCHEDULE
Via Dallas DFW
1 stop with Delta Air Lines.
Only sundays

SHOW SCHEDULE
9h 52m

Only sundays
Via Dallas DFW
1 stop with Delta Air Lines.
9h 52m
Only sundays
SHOW SCHEDULE
Via Atlanta ATL
1 stop with Delta Air Lines. 5-9 flights per day.

SHOW SCHEDULE
10h 11m

Via Atlanta ATL
1 stop with Delta Air Lines.
10h 11m
5-9 flights per day.
SHOW SCHEDULE
Via Dallas DAL
1 stop with Southwest Airlines. 0-1 flights per day.
Only saturdays

SHOW SCHEDULE
10h 58m

Only saturdays
Via Dallas DAL
1 stop with Southwest Airlines.
10h 58m
0-1 flights per day.
Only saturdays
SHOW SCHEDULE
SELECT DATE & CHECK PRICE
Ad

1 stop route options with codeshare or different airlines:

Duration

Via Bozeman BZN With JetBlue Airways & Hawaiian Airlines 0-1 flights per day.
CODESHARE

SHOW SCHEDULE
7h 40m

Via Bozeman BZN
7h 40m
With JetBlue Airways & Hawaiian Airlines 0-1 flights per day.
CODESHARE
SHOW SCHEDULE
Via Cincinnati CVG 1 stop with American Airlines. 0-1 flights per day.
Begins in 3/9
CODESHARE

SHOW SCHEDULE
8h 19m

Begins in 3/9
Via Cincinnati CVG
8h 19m
1 stop with American Airlines. 0-1 flights per day.
Begins in 3/9
CODESHARE
SHOW SCHEDULE
Via Milwaukee MKE With Delta Air Lines & American Airlines 0-1 flights per day.
Only saturdays
CODESHARE

SHOW SCHEDULE
8h 41m

Only saturdays
Via Milwaukee MKE
8h 41m
With Delta Air Lines & American Airlines 0-1 flights per day.
Only saturdays
CODESHARE
SHOW SCHEDULE
Via Washington DCA With American Airlines & Alaska Airlines 0-1 flights per day.

SHOW SCHEDULE
8h 45m

Via Washington DCA
8h 45m
With American Airlines & Alaska Airlines 0-1 flights per day.
SHOW SCHEDULE
Via Portland PDX With Alaska Airlines & Hawaiian Airlines 2 flights per day.
CODESHARE

SHOW SCHEDULE
8h 45m

Via Portland PDX
8h 45m
With Alaska Airlines & Hawaiian Airlines 2 flights per day.
CODESHARE
SHOW SCHEDULE
Via Columbus CMH 1 stop with American Airlines. 0-1 flights per day.
Begins in 26/9
CODESHARE

SHOW SCHEDULE
8h 49m

Begins in 26/9
Via Columbus CMH
8h 49m
1 stop with American Airlines. 0-1 flights per day.
Begins in 26/9
CODESHARE
SHOW SCHEDULE
Via Nashville BNA With Delta Air Lines & Alaska Airlines 0-2 flights per day.
Begins in 17/8

SHOW SCHEDULE
8h 50m

Begins in 17/8
Via Nashville BNA
8h 50m
With Delta Air Lines & Alaska Airlines 0-2 flights per day.
Begins in 17/8
SHOW SCHEDULE
Via Philadelphia PHL With American Airlines & Alaska Airlines 2 flights per day.

SHOW SCHEDULE
8h 55m

Via Philadelphia PHL
8h 55m
With American Airlines & Alaska Airlines 2 flights per day.
SHOW SCHEDULE
Via Chicago ORD With American Airlines & Alaska Airlines 5-6 flights per day.

SHOW SCHEDULE
8h 55m

Via Chicago ORD
8h 55m
With American Airlines & Alaska Airlines 5-6 flights per day.
SHOW SCHEDULE
Via Pittsburgh PIT With Delta Air Lines & Alaska Airlines 0-1 flights per day.

SHOW SCHEDULE
8h 55m

Via Pittsburgh PIT
8h 55m
With Delta Air Lines & Alaska Airlines 0-1 flights per day.
SHOW SCHEDULE
Via Cleveland CLE With Delta Air Lines & Alaska Airlines 0-1 flights per day.

SHOW SCHEDULE
9h 05m

Via Cleveland CLE
9h 05m
With Delta Air Lines & Alaska Airlines 0-1 flights per day.
SHOW SCHEDULE
Via Dulles IAD With United Airlines & Alaska Airlines 2 flights per day.

SHOW SCHEDULE
9h 14m

Via Dulles IAD
9h 14m
With United Airlines & Alaska Airlines 2 flights per day.
SHOW SCHEDULE
Via Detroit DTW With Delta Air Lines & American Airlines 1-2 flights per day.
Begins in 4/10
CODESHARE

SHOW SCHEDULE
9h 15m

Begins in 4/10
Via Detroit DTW
9h 15m
With Delta Air Lines & American Airlines 1-2 flights per day.
Begins in 4/10
CODESHARE
SHOW SCHEDULE
Via New York EWR With Delta Air Lines & Alaska Airlines 0-1 flights per day.

SHOW SCHEDULE
9h 19m

Via New York EWR
9h 19m
With Delta Air Lines & Alaska Airlines 0-1 flights per day.
SHOW SCHEDULE
Via Saint Louis STL 1 stop with American Airlines. 0-1 flights per day.
CODESHARE

SHOW SCHEDULE
9h 20m

Via Saint Louis STL
9h 20m
1 stop with American Airlines. 0-1 flights per day.
CODESHARE
SHOW SCHEDULE
Via Minneapolis MSP With Delta Air Lines & Alaska Airlines 2 flights per day.

SHOW SCHEDULE
9h 25m

Via Minneapolis MSP
9h 25m
With Delta Air Lines & Alaska Airlines 2 flights per day.
SHOW SCHEDULE
Via Salt Lake City SLC With Delta Air Lines & Alaska Airlines 1-2 flights per day.

SHOW SCHEDULE
9h 29m

Via Salt Lake City SLC
9h 29m
With Delta Air Lines & Alaska Airlines 1-2 flights per day.
SHOW SCHEDULE
Via Kansas City MCI With Delta Air Lines & American Airlines 0-1 flights per day.
Only saturdays
CODESHARE

SHOW SCHEDULE
9h 41m

Only saturdays
Via Kansas City MCI
9h 41m
With Delta Air Lines & American Airlines 0-1 flights per day.
Only saturdays
CODESHARE
SHOW SCHEDULE
Via Atlanta ATL With Delta Air Lines & Alaska Airlines 2 flights per day.

SHOW SCHEDULE
9h 50m

Via Atlanta ATL
9h 50m
With Delta Air Lines & Alaska Airlines 2 flights per day.
SHOW SCHEDULE
Via New York JFK With American Airlines & Alaska Airlines 1-2 flights per day.

SHOW SCHEDULE
9h 54m

Via New York JFK
9h 54m
With American Airlines & Alaska Airlines 1-2 flights per day.
SHOW SCHEDULE
Via Indianapolis IND With Delta Air Lines & American Airlines 0-1 flights per day.
CODESHARE

SHOW SCHEDULE
9h 58m

Via Indianapolis IND
9h 58m
With Delta Air Lines & American Airlines 0-1 flights per day.
CODESHARE
SHOW SCHEDULE
Via New York LGA With Delta Air Lines & Alaska Airlines 0-3 flights per day.

SHOW SCHEDULE
9h 59m

Via New York LGA
9h 59m
With Delta Air Lines & Alaska Airlines 0-3 flights per day.
SHOW SCHEDULE
Via Baltimore BWI With Delta Air Lines & Alaska Airlines 0-1 flights per day.

SHOW SCHEDULE
10h 00m

Via Baltimore BWI
10h 00m
With Delta Air Lines & Alaska Airlines 0-1 flights per day.
SHOW SCHEDULE
Via Denver DEN With United Airlines & Alaska Airlines 2-5 flights per day.

SHOW SCHEDULE
10h 15m

Via Denver DEN
10h 15m
With United Airlines & Alaska Airlines 2-5 flights per day.
SHOW SCHEDULE
Via Raleigh/Durham RDU With Delta Air Lines & Alaska Airlines 0-1 flights per day.

SHOW SCHEDULE
10h 26m

Via Raleigh/Durham RDU
10h 26m
With Delta Air Lines & Alaska Airlines 0-1 flights per day.
SHOW SCHEDULE
Via Charlotte CLT With Delta Air Lines & American Airlines 2 flights per day.

SHOW SCHEDULE
10h 30m

Via Charlotte CLT
10h 30m
With Delta Air Lines & American Airlines 2 flights per day.
SHOW SCHEDULE
Via Boise BOI With United Airlines & Alaska Airlines
Begins in 1/8

SHOW SCHEDULE
10h 31m

Begins in 1/8
Via Boise BOI
10h 31m
With United Airlines & Alaska Airlines
Begins in 1/8
SHOW SCHEDULE
Via Dallas DFW With American Airlines & Alaska Airlines 4-6 flights per day.

SHOW SCHEDULE
10h 40m

Via Dallas DFW
10h 40m
With American Airlines & Alaska Airlines 4-6 flights per day.
SHOW SCHEDULE
Via Charleston CHS With Delta Air Lines & Alaska Airlines 0-1 flights per day.

SHOW SCHEDULE
11h 25m

Via Charleston CHS
11h 25m
With Delta Air Lines & Alaska Airlines 0-1 flights per day.
SHOW SCHEDULE
Via Redmond RDM With United Airlines & Alaska Airlines
Begins in 19/8

SHOW SCHEDULE
11h 43m

Begins in 19/8
Via Redmond RDM
11h 43m
With United Airlines & Alaska Airlines
Begins in 19/8
SHOW SCHEDULE
Via Traverse City TVC With American Airlines & United Airlines
Begins in 1/8

SHOW SCHEDULE
13h 45m

Begins in 1/8
Via Traverse City TVC
13h 45m
With American Airlines & United Airlines
Begins in 1/8
SHOW SCHEDULE
SELECT DATE & CHECK PRICE
Find the best prices on hotels and car rental near Seattle Tacoma

We got great deals on hotels and car rentals near the airport.

Seattle Airport HOTEL PRICES
Seattle Airport CAR-RENTAL
Ad

Boston to Seattle flights

There are over 36 airlines and as many as 1339 flights every week to this destination. You can fly non-stop to Seattle (SEA) from Boston (BOS) with Alaska Airlines, JetBlue Airways or Delta Air Lines but if a stopover option suits you better you can choose to fly via Bozeman, Cincinnati or any other of the 33 alternatives with connectiing airports.

Boston to Seattle with Alaska Airlines

You can fly non-stop every weekday with flights departing between 7:00 am and 7:00 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 Boston with Sun Country Airlines you will do a stopover in Minneapolis, MSP before reaching Seattle. This flight trip will take 8 hours and 32 minutes and you can fly every weekday with departures at 6:00 am, 10:00 am or 11:00 am.

Distance & flight times: Logan Airport to Seattle Airport

The shortest flight time between BOS and SEA is 6 hours and 18 minutes.

ViaTotal flight timeLayover timeDistance
Direct6h 18m-2502 miles (4026 km)
BZN Bozeman7h 40m49m2540 miles (4087 km)
CVG Cincinnati8h 19m54m2724 miles (4383 km)
MKE Milwaukee8h 41m1h 36m2561 miles (4121 km)
PHL Philadelphia8h 43m48m2666 miles (4290 km)
DCA Washington8h 45m46m2735 miles (4401 km)
PDX Portland8h 45m46m2674 miles (4302 km)
CMH Columbus8h 49m55m2664 miles (4286 km)
BNA Nashville8h 50m55m2930 miles (4714 km)
MDW Chicago8h 50m55m2601 miles (4185 km)
ORD Chicago8h 55m55m2594 miles (4174 km)
PIT Pittsburgh8h 55m1h 31m2628 miles (4228 km)
CLE Cleveland9h 5m1h 54m2591 miles (4169 km)
IAD Dulles9h 14m1h 56m2727 miles (4388 km)
DTW Detroit9h 15m2h 0m2565 miles (4127 km)
EWR New York9h 19m2h 37m2609 miles (4198 km)
STL Saint Louis9h 20m2h 57m2763 miles (4446 km)
MSP Minneapolis9h 25m1h 3m2529 miles (4069 km)
CLT Charlotte9h 28m2h 50m3017 miles (4854 km)
SLC Salt Lake City9h 29m1h 52m2802 miles (4508 km)
MCI Kansas City9h 41m2h 8m2754 miles (4431 km)
DFW Dallas9h 47m40m3234 miles (5204 km)
ATL Atlanta9h 50m1h 21m3140 miles (5052 km)
JFK New York9h 54m2h 59m2613 miles (4204 km)
IND Indianapolis9h 58m2h 8m2691 miles (4330 km)
LGA New York9h 59m--
BWI Baltimore10h 0m2h 17m2713 miles (4365 km)
DEN Denver10h 15m2h 23m2787 miles (4484 km)
RDU Raleigh/Durham10h 26m2h 21m2977 miles (4790 km)
BOI Boise10h 31m1h 17m2671 miles (4298 km)
DAL Dallas10h 58m1h 25m3237 miles (5208 km)
CHS Charleston11h 25m2h 58m3247 miles (5224 km)
RDM Redmond11h 43m1h 24m2727 miles (4388 km)
TVC Traverse City13h 45m2h 1m2513 miles (4043 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.BOS-SEA flight routesBoston to Seattle flight routes illustrated on a map.
Ad
Boston - Seattle route map and flight paths
CHECK PRICES FOR BOS - SEA
Quick copy and share this page
URL copied to clipboard!
Ad
Show all destinations from BOS Show all destinations from SEA

You can fly non-stop from Boston (BOS) to Seattle (SEA) with Alaska Airlines, JetBlue Airways or Delta Air Lines. The flight takes approximately 6 hours and 18 minutes. If you travel with a connecting flight instead, for example via Bozeman, the total flight time will be 7 hours and 40 minutes.

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

The flight time between Boston Logan Airport (BOS) and Seattle Tacoma International (SEA) is approximately 6 hours and 18 minutes. The distance between the two airports is 2594 miles (or 4174 kilometers).

Yes, you can fly non-stop to SEA from BOS 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.
Ad
Search price