Spirit Airlines Seattle to Boston Flights

Return flight: Boston – Seattle

Cheapflightsplus.com will find cheap Spirit Airlines flights from Seattle to Boston. Compare airline ticket prices and book air tickets starting from $98 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 Seattle (WA) — Boston (MA) 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 december: one-way - $98, two-way – $168.
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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
12:50 pm — 10:41 am
+1 day
12:50 pm — 3:24 pm NK414 Spirit Airlines
Seattle — Las Vegas
3h 12m stop
6:15 pm — 11:24 pm SY108 Sun Country Airlines
Las Vegas — Minneapolis
7h 9m stop
6:54 am — 10:41 am SY251 Sun Country Airlines
Minneapolis — Boston
18h 51m
including layover
Find flight
from$201
2:16 pm — 3:13 pm
+1 day
2:16 pm — 4:50 pm NK414 Spirit Airlines
Seattle — Las Vegas
7h 9m stop
11:59 pm — 5:05 am NK1064 Spirit Airlines
Las Vegas — New Orleans
5h 49m stop
10:54 am — 3:13 pm NK1375 Spirit Airlines
New Orleans — Boston
21h 57m
including layover
Find flight
from$140
2:16 pm — 1:10 pm
+1 day
2:16 pm — 4:50 pm NK414 Spirit Airlines
Seattle — Las Vegas
6h 5m stop
10:55 pm — 6:28 am NK1853 Spirit Airlines
Las Vegas — Orlando
3h 42m stop
10:10 am — 1:10 pm NK869 Spirit Airlines
Orlando — Boston
19h 54m
including layover
Find flight
from$183
4:00 pm — 2:56 pm
+1 day
4:00 pm — 6:31 pm NK414 Spirit Airlines
Seattle — Las Vegas
6h 25m stop
0:56 am — 7:44 am NK331 Spirit Airlines
Las Vegas — Atlanta
4h 43m stop
12:27 pm — 2:56 pm NK1444 Spirit Airlines
Atlanta — Boston
19h 56m
including layover
Find flight
from$183
4:00 pm — 4:50 pm
+1 day
12:50 pm — 3:24 pm NK414 Spirit Airlines
Seattle — Las Vegas
5h 18m stop
11:49 pm — 7:15 am NK1853 Spirit Airlines
Las Vegas — Orlando
6h 33m stop
1:48 pm — 4:50 pm NK2207 Spirit Airlines
Orlando — Boston
21h 50m
including layover
Find flight
from$212
4:00 pm — 1:23 pm
+1 day
12:50 pm — 3:24 pm NK414 Spirit Airlines
Seattle — Las Vegas
5h 18m stop
11:49 pm — 7:15 am NK1853 Spirit Airlines
Las Vegas — Orlando
3h 5m stop
10:20 am — 1:23 pm NK501 Spirit Airlines
Orlando — Boston
18h 23m
including layover
Find flight
from$212
4:00 pm — 10:41 am
+1 day
4:00 pm — 6:31 pm NK414 Spirit Airlines
Seattle — Las Vegas
5h 28m stop
11:59 pm — 5:05 am SY778 Sun Country Airlines
Las Vegas — Minneapolis
1h 49m stop
6:54 am — 10:41 am SY251 Sun Country Airlines
Minneapolis — Boston
15h 41m
including layover
Find flight
from$224
5:15 am — 7:35 pm
5:15 am — 8:00 am NK1491 Spirit Airlines
Seattle — Los Angeles
42m stop
8:42 am — 4:08 pm NK303 Spirit Airlines
Los Angeles — Detroit
1h 30m stop
5:38 pm — 7:35 pm NK2329 Spirit Airlines
Detroit — Boston
11h 20m
including layover
Find flight
from$205
5:28 pm — 5:18 am
+1 day
5:28 pm — 7:55 pm NK204 Spirit Airlines
Seattle — Las Vegas
1h 20m stop
9:15 pm — 5:18 am NK3924 Spirit Airlines
Las Vegas — Boston
8h 50m
including layover
Find flight
from$98
5:28 pm — 1:23 pm
+1 day
5:28 pm — 7:55 pm NK204 Spirit Airlines
Seattle — Las Vegas
4h stop
11:55 pm — 7:23 am NK1853 Spirit Airlines
Las Vegas — Orlando
2h 57m stop
10:20 am — 1:23 pm NK501 Spirit Airlines
Orlando — Boston
16h 55m
including layover
Find flight
from$131
5:45 am — 6:48 am
+1 day
5:45 am — 8:36 am NK1491 Spirit Airlines
Seattle — Los Angeles
1h 41m stop
10:22 am — 6:20 pm NK2074 Spirit Airlines
Los Angeles — Baltimore
11h 5m stop
5:28 am — 6:55 am NK523 Spirit Airlines
Baltimore — Boston
22h 3m
including layover
Find flight
from$161
6:00 am — 11:29 pm
6:00 am — 8:46 am NK801 Spirit Airlines
Seattle — Los Angeles
4h 13m stop
12:59 pm — 9:02 pm NK2074 Spirit Airlines
Los Angeles — Baltimore
57m stop
9:59 pm — 11:29 pm NK2075 Spirit Airlines
Baltimore — Boston
14h 29m
including layover
Find flight
from$246
6:11 am — 9:07 pm
5:45 am — 8:36 am NK1491 Spirit Airlines
Seattle — Los Angeles
1h 34m stop
10:22 am — 6:20 pm NK2074 Spirit Airlines
Los Angeles — Baltimore
55m stop
7:32 pm — 9:02 pm NK2075 Spirit Airlines
Baltimore — Boston
11h 56m
including layover
Find flight
from$119
6:37 pm — 4:00 pm
+1 day
6:37 pm — 9:11 pm NK782 Spirit Airlines
Seattle — Las Vegas
2h 8m stop
11:19 pm — 6:58 am NK1932 Spirit Airlines
Las Vegas — Baltimore
7h 42m stop
2:40 pm — 4:00 pm NK934 Spirit Airlines
Baltimore — Boston
18h 23m
including layover
Find flight
from$253
6:37 pm — 3:19 pm
+1 day
6:37 pm — 9:11 pm NK782 Spirit Airlines
Seattle — Las Vegas
2h 34m stop
11:45 pm — 7:22 am NK1853 Spirit Airlines
Las Vegas — Orlando
4h 52m stop
12:14 pm — 3:19 pm NK501 Spirit Airlines
Orlando — Boston
17h 42m
including layover
Find flight
from$615
9:21 pm — 2:56 pm
+1 day
9:21 pm — 11:50 pm NK1456 Spirit Airlines
Seattle — Las Vegas
1h 6m stop
0:56 am — 7:44 am NK331 Spirit Airlines
Las Vegas — Atlanta
4h 43m stop
12:27 pm — 2:56 pm NK1444 Spirit Airlines
Atlanta — Boston
14h 35m
including layover
Find flight
from$163
9:35 pm — 8:04 pm
+1 day
9:35 pm — 11:59 pm NK414 Spirit Airlines
Seattle — Las Vegas
6h 16m stop
6:15 am — 11:52 am NK187 Spirit Airlines
Las Vegas — Chicago
4h 53m stop
4:45 pm — 8:04 pm NK177 Spirit Airlines
Chicago — Boston
19h 29m
including layover
Find flight
from$147
9:35 pm — 7:27 pm
+1 day
9:35 pm — 11:59 pm NK414 Spirit Airlines
Seattle — Las Vegas
6h 1m stop
6:00 am — 12:52 pm NK331 Spirit Airlines
Las Vegas — Atlanta
4h 3m stop
4:55 pm — 7:27 pm NK1160 Spirit Airlines
Atlanta — Boston
18h 52m
including layover
Find flight
from$147
*Departure and arrival times are local. Last updated on 11/21/2024

Flight Information

There are 19 flights by Spirit Airlines from Seattle to Boston every week with departures from Seattle-Tacoma Intl, Boeing Field International Airport, Kenmore Air Harbor SPB. All flights arrive at Logan, Boston City Heliport, Boston RT128 Rail, Boston South Rail.

Departures start from 12:50 pm to 9:35 pm. Nonstop flight is 8h 50m. The time difference between Seattle and Boston is 3h.

  • The fastest flight 8h 50m
  • Average flight time 18h 23m
  • The earliest flight 12:50 pm
  • The latest flight 9:35 pm
  • Distance 2489 ml

The cheapest months for traveling to Boston are december (from 98 $), january (from 140 $), november (from 147 $).

The most expensive and popular months are february (from 246 $), november (from 147 $), january (from 140 $).

The cheapest flight by Spirit Airlines that our users were able to find is $98. This airfare is economy class on one-way NK204 flight for December 3, 2024 leaving Seattle-Tacoma Intl in Seattle at 5:28 pm, it includes all taxes and additional fees.

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Other Popular Airlines on the Route

Besides Spirit Airlines there are other 4 airline carriers between Seattle and Boston. Please review schedules and prices from the most popular airlines to find the best airfare deals from Seattle to Boston.

Nonstop flights

There are 3 direct flights every day from Seattle. Airlines and fares are below:

See more direct flights

Connecting Flights

List of flights with layovers (1 and more stops):

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How to book an air ticket yourself?

How to book an air ticket yourself?
  • Fill in the search parameters — cities of departure and destination, departure and return dates and click «Find flights»
  • Select the best flight that you like. Please, check the airports of departure and arrival. Select the best fare, but pay attention to the following flight details - airports of departure and arrival, flight duration and layovers. Please use filters and sort to find the best flight.
  • Click «Buy» when you are ready — our system will redirect you to the site that sells the selected airfare.
  • Fill in all passenger and payment information — passport and contact information, please double check all passengers’ names and make a payment for your itinerary.
  • That's it — you will receive an email with your e-ticket usually within 10 minutes after your flight is confirmed. Please, print the e-ticket and have it with you at the airport. You would need to have only a passport and/or a required form of ID to travel. Please, check your Visa requirements if you travel outside of the United States or Canada.

    To find a plane ticket, please select dates.

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