Compare live prices for SEA to BOS. Use the search panel
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SEA → BOSApprox. 4005.51 km08 May 2026Live inventory
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Showing 25
of 111
live flights
American Airlines
AA-872
12:34
05/08/2026
SEA
Seattle Tacoma International Airport
11h 1m
1 Stop
⏱ PHL · 1h 10mPHL Airport
23:35
05/08/2026
BOS
General Edward Lawrence Logan International Airport
₹14,182
per person
✕ Non-refundable14 fare options
American Airlines
AA-2741
13:19
05/08/2026
SEA
Seattle Tacoma International Airport
11h 6m
1 Stop
⏱ ORD · 1h 7mORD Airport
00:25
05/09/2026
+1
BOS
General Edward Lawrence Logan International Airport
₹14,182
per person
✕ Non-refundable14 fare options
American Airlines
AA-2775
11:16
05/08/2026
SEA
Seattle Tacoma International Airport
11h 12m
1 Stop
⏱ ORD · 1h 14mORD Airport
22:28
05/08/2026
BOS
General Edward Lawrence Logan International Airport
₹14,182
per person
✕ Non-refundable14 fare options
American Airlines
AA-4291
18:19
05/08/2026
SEA
Seattle Tacoma International Airport
11h 41m
1 Stop
⏱ PHX · 0h 50mPHX Airport
06:00
05/09/2026
+1
BOS
General Edward Lawrence Logan International Airport
₹14,182
per person
✕ Non-refundable14 fare options
American Airlines
AA-4149
11:11
05/08/2026
SEA
Seattle Tacoma International Airport
13h 13m
1 Stop
⏱ PHX · 2h 18mPHX Airport
00:24
05/09/2026
+1
BOS
General Edward Lawrence Logan International Airport
₹14,182
per person
✕ Non-refundable14 fare options
American Airlines
AA-2003
23:55
05/08/2026
SEA
Seattle Tacoma International Airport
11h 57m
1 Stop
⏱ DFW · 1h 15mDFW Airport
11:52
05/09/2026
+1
BOS
General Edward Lawrence Logan International Airport
₹14,182
per person
✕ Non-refundable14 fare options
American Airlines
AA-2003
23:55
05/08/2026
SEA
Seattle Tacoma International Airport
13h 16m
1 Stop
⏱ DFW · 2h 34mDFW Airport
13:11
05/09/2026
+1
BOS
General Edward Lawrence Logan International Airport
₹14,182
per person
✕ Non-refundable14 fare options
American Airlines
AA-2398
23:33
05/08/2026
SEA
Seattle Tacoma International Airport
11h 6m
1 Stop
⏱ ORD · 1h 26mORD Airport
10:39
05/09/2026
+1
BOS
General Edward Lawrence Logan International Airport
₹14,182
per person
✕ Non-refundable13 fare options
American Airlines
AA-2398
23:33
05/08/2026
SEA
Seattle Tacoma International Airport
11h 59m
1 Stop
⏱ ORD · 2h 26mORD Airport
11:32
05/09/2026
+1
BOS
General Edward Lawrence Logan International Airport
₹14,182
per person
✕ Non-refundable13 fare options
American Airlines
AA-2775
11:16
05/08/2026
SEA
Seattle Tacoma International Airport
13h 9m
1 Stop
⏱ ORD · 3h 10mORD Airport
00:25
05/09/2026
+1
BOS
General Edward Lawrence Logan International Airport
₹14,182
per person
✕ Non-refundable13 fare options
Delta Air Lines
DL-474
16:10
05/08/2026
SEA
Seattle Tacoma International Airport
8h 30m
Non-stop
00:40
05/09/2026
+1
BOS
General Edward Lawrence Logan International Airport
₹16,977
per person
✕ Non-refundable3 fare options
Delta Air Lines
DL-412
11:15
05/08/2026
SEA
Seattle Tacoma International Airport
8h 34m
Non-stop
19:49
05/08/2026
BOS
General Edward Lawrence Logan International Airport
₹16,977
per person
✕ Non-refundable3 fare options
Delta Air Lines
DL-473
23:00
05/08/2026
SEA
Seattle Tacoma International Airport
8h 35m
Non-stop
07:35
05/09/2026
+1
BOS
General Edward Lawrence Logan International Airport
₹16,977
per person
✕ Non-refundable3 fare options
United Airlines
UA-747
23:53
05/08/2026
SEA
Seattle Tacoma International Airport
11h 8m
1 Stop
⏱ ORD · 1h 36mORD Airport
11:01
05/09/2026
+1
BOS
General Edward Lawrence Logan International Airport
₹17,228
per person
✕ Non-refundable7 fare options
United Airlines
UA-264
22:41
05/08/2026
SEA
Seattle Tacoma International Airport
11h 37m
1 Stop
⏱ IAD · 1h 45mIAD Airport
10:18
05/09/2026
+1
BOS
General Edward Lawrence Logan International Airport
₹17,228
per person
✕ Non-refundable7 fare options
United Airlines
UA-1218
19:05
05/08/2026
SEA
Seattle Tacoma International Airport
10h 59m
1 Stop
⏱ DEN · 1h 3mDEN Airport
06:04
05/09/2026
+1
BOS
General Edward Lawrence Logan International Airport
₹17,228
per person
✕ Non-refundable7 fare options
United Airlines
UA-737
19:36
05/08/2026
SEA
Seattle Tacoma International Airport
12h 47m
1 Stop
⏱ SFO · 1h 31mSFO Airport
08:23
05/09/2026
+1
BOS
General Edward Lawrence Logan International Airport
₹17,228
per person
✕ Non-refundable🔥 Last 5 seats7 fare options
United Airlines
UA-1763
22:53
05/08/2026
SEA
Seattle Tacoma International Airport
12h 8m
1 Stop
⏱ ORD · 2h 27mORD Airport
11:01
05/09/2026
+1
BOS
General Edward Lawrence Logan International Airport
₹17,228
per person
✕ Non-refundable6 fare options
United Airlines
UA-2866
17:25
05/08/2026
SEA
Seattle Tacoma International Airport
13h 2m
1 Stop
⏱ SFO · 1h 47mSFO Airport
06:27
05/09/2026
+1
BOS
General Edward Lawrence Logan International Airport
₹17,228
per person
✕ Non-refundable🔥 Last 4 seats6 fare options
United Airlines
UA-1482
11:39
05/08/2026
SEA
Seattle Tacoma International Airport
13h 31m
1 Stop
⏱ SFO · 2h 22mSFO Airport
01:10
05/09/2026
+1
BOS
General Edward Lawrence Logan International Airport
₹17,228
per person
✕ Non-refundable6 fare options
alaskaairlines
AS-536
22:45
05/08/2026
SEA
Seattle Tacoma International Airport
8h 27m
Non-stop
07:12
05/09/2026
+1
BOS
General Edward Lawrence Logan International Airport
₹17,329
per person
✕ Non-refundable6 fare options
alaskaairlines
AS-1436
07:00
05/08/2026
SEA
Seattle Tacoma International Airport
8h 33m
Non-stop
15:33
05/08/2026
BOS
General Edward Lawrence Logan International Airport
₹17,329
per person
✕ Non-refundable6 fare options
alaskaairlines
AS-460
15:21
05/08/2026
SEA
Seattle Tacoma International Airport
8h 38m
Non-stop
23:59
05/08/2026
BOS
General Edward Lawrence Logan International Airport
₹17,329
per person
✕ Non-refundable6 fare options
American Airlines
AA-2763
22:47
05/08/2026
SEA
Seattle Tacoma International Airport
11h 16m
1 Stop
⏱ PHL · 1h 27mPHL Airport
10:03
05/09/2026
+1
BOS
General Edward Lawrence Logan International Airport
₹18,810
per person
✕ Non-refundable7 fare options
American Airlines
AA-767
11:41
05/08/2026
SEA
Seattle Tacoma International Airport
12h 23m
1 Stop
⏱ DFW · 1h 25mDFW Airport
00:04
05/09/2026
+1
BOS
General Edward Lawrence Logan International Airport
₹18,810
per person
✕ Non-refundable7 fare options
😕 No flights match your filters.
Seattle (SEA)
📍 Seattle Tacoma International Airport
🌍 United States
🕐 GMT -8
📐 Latitude: 47.449001
📐 Longitude: -122.308998
Boston (BOS)
📍 General Edward Lawrence Logan International Airport
🌍 United States
🕐 GMT -5
📐 Latitude: 42.36429977
📐 Longitude: -71.00520325
✈ Distance: Seattle,USA to Boston,USA — 4005.51 km
📅 Results on this page are loaded for 08 May 2026. Click View all flights for the complete live search.
Seattle to Boston — what to expect when booking
The SEA–BOS route is served by multiple carriers throughout the year.
Fares on this route can move quickly — a price available now may not be there 30 minutes later.
If your dates are flexible, try shifting your departure by a day or two using the date strip above.
Mid-week departures often show lower base fares compared to weekend starts on many routes.
The distance between Seattle,USA and Boston,USA is approximately
4005.51 km.
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❓ Frequently asked questions — Seattle to Boston flights
Generally yes — fares on most routes are most competitive around 4–6 weeks before departure. Booking earlier usually means better availability and a lower base fare when your dates are fixed.
The straight-line distance between Seattle,USA (SEA) and Boston,USA (BOS) is approximately 4005.51 km. Actual flying distance may vary slightly depending on routing.
Non-stop availability on this route varies by airline schedule and season. Use the filters below to quickly check whether direct options are available on your selected date.
Mid-week departures often show lower prices than weekend travel on many routes. Use the date strip above to compare nearby days quickly.