Spirit Airlines Boston to Seattle Flights
Return flight: Seattle – Boston
Cheapflightsplus.com will find cheap Spirit Airlines flights from Boston to Seattle. Compare airline ticket prices and book air tickets starting from $47 from trusted online travel agencies, web sites and directly from airlines. Check flights schedule of Spirit Airlines, arrivals and departure details below.
Find Cheap Airfare Boston (MA) — Seattle (WA) by Spirit Airlines
To find cheap tickets choose a day of your departure with attractive price on the graph below and click «Find flights». For round trip flights please click «Check prices for return flight». The cheapest airfare is in june: one-way - $47, two-way – $81.
Direct flights
Check prices for return flight
Cheap Flights from Boston to Seattle by Spirit Airlines
Look at the list of plane tickets for the most connecting flights by Spirit Airlines, their prices start from $47. There’re no direct flights. The fastest connecting flight – 10h 17m.
| Price | Departure | Arrival | Flight Time | Airline | Flight |
|---|---|---|---|---|---|
| from $47 | 5:15 pm Boston Logan | 0:32 am+1 день Seattle Seattle-Tacoma Intl | 10h 17m layover 1h 29m - Las Vegas | Spirit Airlines | NK641 NK1623 |
| from $52 | 1:55 pm Boston Logan | 9:25 pm Seattle Seattle-Tacoma Intl | 10h 30m layover 3h 12m - Baltimore | Spirit Airlines | NK2997 NK2914 |
| from $59 | 5:15 pm Boston Logan | 8:50 am+1 день Seattle Seattle-Tacoma Intl | 18h 35m layover 9h 44m - Las Vegas | Spirit Airlines | NK641 F92167 |
| from $135 | 8:36 pm Boston Logan | 11:33 am+1 день Seattle Seattle-Tacoma Intl | 17h 57m layover 9h 15m - Las Vegas | Spirit Airlines | NK641 NK375 |
| from $143 | 12:45 pm Boston Logan | 8:44 pm Seattle Seattle-Tacoma Intl | 10h 59m layover 3h 31m - Chicago | Spirit Airlines | NK773 DL1255 |
| from $169 | 8:36 pm Boston Logan | 8:43 am+1 день Seattle Seattle-Tacoma Intl | 15h 7m layover 6h 25m - Las Vegas | Spirit Airlines | NK641 AS401 |
| from $57 | 7:00 am Boston Logan | 0:01 am+1 день Seattle Seattle-Tacoma Intl | 20h 1m layover 3h 25m - Chicago 7h 56m - Denver | Spirit Airlines | NK2855 F9415 F9143 |
| from $73 | 3:22 pm Boston Logan | 8:31 am+1 день Seattle Seattle-Tacoma Intl | 20h 9m layover 3h 54m - Chicago 7h 39m - Denver | Spirit Airlines | NK2855 F9413 F9145 |
| from $144 | 1:22 pm Boston Logan | 1:19 am+1 день Seattle Seattle-Tacoma Intl | 14h 57m layover 1h 7m - Baltimore 4h 25m - Las Vegas | Spirit Airlines | NK1021 NK695 NK1069 |
| from $185 | 9:59 pm Boston Logan | 12:41 pm+1 день Seattle Seattle-Tacoma Intl | 17h 42m layover 5h 48m - Baltimore 3h 53m - Chicago | Spirit Airlines | NK1027 UA1719 UA635 |
| from $203 | 9:59 pm Boston Logan | 10:18 am+1 день Seattle Seattle-Tacoma Intl | 15h 19m layover 5h 48m - Baltimore 1h 34m - Chicago | Spirit Airlines | NK1027 UA1719 UA1846 |
| from $204 | 6:45 am Boston Logan | 6:39 pm Seattle Seattle-Tacoma Intl | 14h 54m layover 2h 9m - Fort Myers 1h 30m - Chicago | Spirit Airlines | NK937 UA2404 UA1641 |
Show All Flights
*Departure and arrival times are local. Prices are for one-way flights. Information refreshed on 05/22/2024
Spirit Airlines Flight Schedule Boston to Seattle
Below is a detailed 2024 flight schedule for today, tomorrow and all other days. It may vary depending on season and a day of the week of your desired trip. We recommend booking your itinerary at least 2 weeks prior your travel to get the best price and availability by the airline.
| Departure | Arrival | Flight Details | Flight Time | Price |
|---|---|---|---|---|
|
11:53 am — 10:34 am
+1 day
|
11:53 am — 3:19 pm
NK609
Spirit Airlines
Boston — Miami
5h 11m stop
8:30 pm — 10:47 pm
NK777
Spirit Airlines
Miami — Las Vegas
8h 57m stop
7:44 am — 10:34 am
F92167
Frontier Airlines
Las Vegas — Seattle
|
25h 41m including layover |
Find flight
from$63 |
|
|
12:45 pm — 8:35 am
+1 day
|
12:45 pm — 2:34 pm
NK773
Spirit Airlines
Boston — Chicago
15h 26m stop
6:00 am — 8:35 am
AS27
Alaska Airlines
Chicago — Seattle
|
22h 50m including layover |
Find flight
from$141 |
|
|
12:45 pm — 8:44 pm
|
12:45 pm — 2:34 pm
NK773
Spirit Airlines
Boston — Chicago
3h 31m stop
6:05 pm — 8:44 pm
DL1255
Delta Air Lines Inc.
Chicago — Seattle
|
10h 59m including layover |
Find flight
from$143 |
|
|
1:22 pm — 1:19 am
+1 day
|
1:22 pm — 2:53 pm
NK1021
Spirit Airlines
Boston — Baltimore
1h 7m stop
4:00 pm — 6:16 pm
NK695
Spirit Airlines
Baltimore — Las Vegas
4h 25m stop
10:41 pm — 1:19 am
NK1069
Spirit Airlines
Las Vegas — Seattle
|
14h 57m including layover |
Find flight
from$144 |
|
|
1:53 pm — 10:37 am
+1 day
|
1:53 pm — 4:31 pm
NK2223
Spirit Airlines
Boston — Las Vegas
15h 29m stop
8:00 am — 10:37 am
NK486
Spirit Airlines
Las Vegas — Seattle
|
23h 44m including layover |
Find flight
from$63 |
|
|
1:55 pm — 9:25 pm
|
1:55 pm — 3:23 pm
NK2997
Spirit Airlines
Boston — Baltimore
3h 12m stop
6:35 pm — 9:25 pm
NK2914
Spirit Airlines
Baltimore — Seattle
|
10h 30m including layover |
Find flight
from$52 |
|
|
3:22 pm — 8:31 am
+1 day
|
3:22 pm — 4:55 pm
NK2855
Spirit Airlines
Boston — Chicago
3h 54m stop
8:49 pm — 10:46 pm
F9413
Frontier Airlines
Chicago — Denver
7h 39m stop
6:25 am — 8:31 am
F9145
Frontier Airlines
Denver — Seattle
|
20h 9m including layover |
Find flight
from$73 |
|
|
5:15 pm — 0:32 am
+1 day
|
5:15 pm — 8:16 pm
NK641
Spirit Airlines
Boston — Las Vegas
1h 29m stop
9:45 pm — 0:32 am
NK1623
Spirit Airlines
Las Vegas — Seattle
|
10h 17m including layover |
Find flight
from$47 |
|
|
5:15 pm — 8:50 am
+1 day
|
5:15 pm — 8:16 pm
NK641
Spirit Airlines
Boston — Las Vegas
9h 44m stop
6:00 am — 8:50 am
F92167
Frontier Airlines
Las Vegas — Seattle
|
18h 35m including layover |
Find flight
from$59 |
|
|
5:25 pm — 12:56 pm
+1 day
|
5:25 pm — 8:09 pm
NK641
Spirit Airlines
Boston — Las Vegas
14h 6m stop
10:15 am — 12:56 pm
NK2956
Spirit Airlines
Las Vegas — Seattle
|
22h 31m including layover |
Find flight
from$62 |
|
|
6:45 am — 6:39 pm
|
6:45 am — 10:21 am
NK937
Spirit Airlines
Boston — Fort Myers
2h 9m stop
12:30 pm — 2:37 pm
UA2404
United Airlines
Fort Myers — Chicago
1h 30m stop
4:07 pm — 6:39 pm
UA1641
United Airlines
Chicago — Seattle
|
14h 54m including layover |
Find flight
from$204 |
|
|
6:45 am — 7:13 pm
|
6:45 am — 10:21 am
NK937
Spirit Airlines
Boston — Fort Myers
3h 14m stop
1:35 pm — 3:18 pm
DL2671
Delta Air Lines Inc.
Fort Myers — Atlanta
1h 26m stop
4:44 pm — 7:13 pm
DL2635
Delta Air Lines Inc.
Atlanta — Seattle
|
15h 28m including layover |
Find flight
from$230 |
|
|
7:00 am — 6:32 pm
+1 day
|
7:00 am — 8:57 am
NK2855
Spirit Airlines
Boston — Chicago
21h 33m stop
6:30 am — 8:20 am
F9411
Frontier Airlines
Chicago — Denver
8h 14m stop
4:34 pm — 6:32 pm
F9145
Frontier Airlines
Denver — Seattle
|
38h 32m including layover |
Find flight
from$52 |
|
|
7:00 am — 0:01 am
+1 day
|
7:00 am — 8:57 am
NK2855
Spirit Airlines
Boston — Chicago
3h 25m stop
12:22 pm — 2:05 pm
F9415
Frontier Airlines
Chicago — Denver
7h 56m stop
10:01 pm — 0:01 am
F9143
Frontier Airlines
Denver — Seattle
|
20h 1m including layover |
Find flight
from$57 |
|
|
7:23 pm — 6:02 pm
+1 day
|
7:23 pm — 10:50 pm
NK615
Spirit Airlines
Boston — Miami
12h 5m stop
10:55 am — 1:05 pm
NK1242
Spirit Airlines
Miami — Denver
3h stop
4:05 pm — 6:02 pm
F9145
Frontier Airlines
Denver — Seattle
|
25h 39m including layover |
Find flight
from$71 |
|
|
7:27 pm — 9:25 pm
+1 day
|
7:27 pm — 10:53 pm
NK615
Spirit Airlines
Boston — Miami
10h 30m stop
9:23 am — 11:56 am
NK2074
Spirit Airlines
Miami — Baltimore
6h 39m stop
6:35 pm — 9:25 pm
NK2914
Spirit Airlines
Baltimore — Seattle
|
28h 58m including layover |
Find flight
from$58 |
|
|
7:27 pm — 5:27 pm
+1 day
|
7:27 pm — 10:53 pm
NK615
Spirit Airlines
Boston — Miami
8h 12m stop
7:05 am — 9:23 am
NK1314
Spirit Airlines
Miami — Denver
6h 1m stop
3:24 pm — 5:27 pm
F9143
Frontier Airlines
Denver — Seattle
|
25h including layover |
Find flight
from$69 |
|
|
8:36 pm — 11:33 am
+1 day
|
8:36 pm — 11:35 pm
NK641
Spirit Airlines
Boston — Las Vegas
9h 15m stop
8:50 am — 11:33 am
NK375
Spirit Airlines
Las Vegas — Seattle
|
17h 57m including layover |
Find flight
from$135 |
|
|
8:36 pm — 8:43 am
+1 day
|
8:36 pm — 11:35 pm
NK641
Spirit Airlines
Boston — Las Vegas
6h 25m stop
6:00 am — 8:43 am
AS401
Alaska Airlines
Las Vegas — Seattle
|
15h 7m including layover |
Find flight
from$169 |
|
|
9:59 pm — 12:41 pm
+1 day
|
9:59 pm — 11:27 pm
NK1027
Spirit Airlines
Boston — Baltimore
5h 48m stop
5:15 am — 6:12 am
UA1719
United Airlines
Baltimore — Chicago
3h 53m stop
10:05 am — 12:41 pm
UA635
United Airlines
Chicago — Seattle
|
17h 42m including layover |
Find flight
from$185 |
|
|
9:59 pm — 10:18 am
+1 day
|
9:59 pm — 11:27 pm
NK1027
Spirit Airlines
Boston — Baltimore
5h 48m stop
5:15 am — 6:12 am
UA1719
United Airlines
Baltimore — Chicago
1h 34m stop
7:46 am — 10:18 am
UA1846
United Airlines
Chicago — Seattle
|
15h 19m including layover |
Find flight
from$203 |
|
*Departure and arrival times are local. Last updated on 05/22/2024
Flight Information
There are 22 flights by Spirit Airlines from Boston to Seattle every week with departures from Logan, Boston City Heliport, Boston RT128 Rail, Boston South Rail. All flights arrive at Seattle-Tacoma Intl, Boeing Field International Airport, Kenmore Air Harbor SPB.
Departures start from 11:53 am to 9:59 pm. Nonstop flight is 10h 17m. The time difference between Boston and Seattle is 3h.
- The fastest flight 10h 17m
- Average flight time 18h 35m
- The earliest flight 11:53 am
- The latest flight 9:59 pm
- Distance 2489 ml
The cheapest flight by Spirit Airlines that our users were able to find is $47. This airfare is economy class on one-way NK641 flight for October 7, 2020 leaving Logan in Boston at 5:15 pm, it includes all taxes and additional fees.
Spirit Airlines Airplanes on the Route
List of the most popular Spirit Airlines airplanes flying from Boston to Seattle:
Other Popular Airlines on the Route
Besides Spirit Airlines there are other 8 airline carriers between Boston and Seattle. Please review schedules and prices from the most popular airlines to find the best airfare deals from Boston to Seattle.
Nonstop flights
There are 21 direct flights every day from Boston. Airlines and fares are below:
- from $87Find
- from $102Find
- from $93Find
- from $113Find
See more direct flights
Connecting Flights
List of flights with layovers (1 and more stops):
- from $68Find
- from $87Find
- from $60Find
- from $90Find
- from $59Find
- F9 - Frontier Airlinesfrom $85Find
- WN - Southwest Airlinesfrom $94Find
- TK - Turkish Airlinesfrom $1001Find
See more connecting flights
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