SAS flight SK 3581: Boston Logan - Chicago O'Hare

Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Wed 07:15 Boston Logan (BOS) A 09:28 Chicago O'Hare (ORD) 5
SK 3581 Non-stop Embraer EMB 175 (E75) 3:13 Operates only on 2026-02-18
Codeshare flight, operated by Delta Air Lines.(DL 5596)
Sun 07:30 Boston Logan (BOS) A 09:41 Chicago O'Hare (ORD) 5
SK 3581 Non-stop Embraer EMB 175 (E75) 3:11 Operates only on 2026-01-18
Codeshare flight, operated by Delta Air Lines.(DL 5596)
Wed 13:50 Boston Logan (BOS) A 15:57 Chicago O'Hare (ORD) 5
SK 3581 Non-stop Embraer EMB 175 (E75) 3:07 Effective 2026-01-07 through 2026-01-14
Codeshare flight, operated by Delta Air Lines.(DL 5607)
Mon 19:15 Boston Logan (BOS) A 21:21 Chicago O'Hare (ORD) 5
SK 3581 Non-stop Embraer EMB 175 (E75) 3:06 Operates only on 2026-01-05
Codeshare flight, operated by Delta Air Lines.(DL 5858)
Mon,Fri-Sun 19:40 Boston Logan (BOS) A 21:40 Chicago O'Hare (ORD) 5
SK 3581 Non-stop Embraer EMB 175 (E75) 3:00 Valid until 2026-01-04
Codeshare flight, operated by Delta Air Lines.(DL 5596)
Mon,Tue,Thu,Fri 19:45 Boston Logan (BOS) A 21:48 Chicago O'Hare (ORD) 5
SK 3581 Non-stop Embraer EMB 175 (E75) 3:03 Effective 2026-02-12 through 2026-02-20
Codeshare flight, operated by Delta Air Lines.(DL 5858)
Mon,Tue,Thu,Fri,Sun 19:45 Boston Logan (BOS) A 21:48 Chicago O'Hare (ORD) 5
SK 3581 Non-stop Embraer EMB 175 (E75) 3:03 Effective 2026-02-22 through 2026-03-06
Codeshare flight, operated by Delta Air Lines.(DL 5858)
Mon,Tue,Thu,Fri,Sun 19:55 Boston Logan (BOS) A 22:01 Chicago O'Hare (ORD) 5
SK 3581 Non-stop Embraer EMB 175 (E75) 3:06 Effective 2026-01-06 through 2026-01-16
Codeshare flight, operated by Delta Air Lines.(DL 5858)
Mon,Tue,Thu,Fri,Sun 20:05 Boston Logan (BOS) A 22:01 Chicago O'Hare (ORD) 5
SK 3581 Non-stop Embraer EMB 175 (E75) 2:56 Effective 2026-03-08 through 2026-03-31
Codeshare flight, operated by Delta Air Lines.(DL 5858)
Mon-Fri,Sun 20:05 Boston Logan (BOS) A 22:01 Chicago O'Hare (ORD) 5
SK 3581 Non-stop Embraer EMB 175 (E75) 2:56 Effective 2026-04-01 through 2026-04-12
Codeshare flight, operated by Delta Air Lines.(DL 5858)
Daily 20:10 Boston Logan (BOS) A 22:06 Chicago O'Hare (ORD) 5
SK 3581 Non-stop Airbus A220-100 (221) 2:56 Effective 2026-04-13 through 2026-05-06
Codeshare flight, operated by Delta Air Lines.(DL 2804)
Daily 20:10 Boston Logan (BOS) A 22:06 Chicago O'Hare (ORD) 5
SK 3581 Non-stop Airbus A319 (319) 2:56 Effective 2026-05-07 through 2026-10-05
Codeshare flight, operated by Delta Air Lines.(DL 2804)
Daily 20:10 Boston Logan (BOS) A 22:04 Chicago O'Hare (ORD) 5
SK 3581 Non-stop Airbus A319 (319) 2:54 Effective 2026-10-06 through 2026-10-24
Codeshare flight, operated by Delta Air Lines.(DL 2804)
Daily 20:10 Boston Logan (BOS) A 22:06 Chicago O'Hare (ORD) 5
SK 3581 Non-stop Airbus A220-300 (223) 2:56 Effective from 2026-10-25
Codeshare flight, operated by Delta Air Lines.(DL 2804)
Tue,Thu,Fri 20:25 Boston Logan (BOS) A 22:29 Chicago O'Hare (ORD) 5
SK 3581 Non-stop Embraer EMB 175 (E75) 3:04 Effective 2026-01-20 through 2026-01-27
Codeshare flight, operated by Delta Air Lines.(DL 5858)
Mon,Tue,Thu,Fri 20:25 Boston Logan (BOS) A 22:29 Chicago O'Hare (ORD) 5
SK 3581 Non-stop Embraer EMB 175 (E75) 3:04 Effective 2026-01-30 through 2026-02-10
Codeshare flight, operated by Delta Air Lines.(DL 5858)
Sun 20:40 Boston Logan (BOS) A 22:44 Chicago O'Hare (ORD) 5
SK 3581 Non-stop Embraer EMB 175 (E75) 3:04 Effective 2026-01-25 through 2026-02-01
Codeshare flight, operated by Delta Air Lines.(DL 5858)


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SAS flight SK 3581:
Boston Logan - Chicago O'Hare
Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
SAS SK3581
07:15
Boston Logan (BOS) A

09:28
Chicago O'Hare (ORD) 5
Operates only on 2026-02-18
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 5596)
Duration: 3:13, non-stop
Embraer EMB 175 (E75)
Direct Codeshare Flights:
SAS SK3581
07:30
Boston Logan (BOS) A

09:41
Chicago O'Hare (ORD) 5
Operates only on 2026-01-18
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 5596)
Duration: 3:11, non-stop
Embraer EMB 175 (E75)
Direct Codeshare Flights:
SAS SK3581
13:50
Boston Logan (BOS) A

15:57
Chicago O'Hare (ORD) 5
Effective 2026-01-07 through 2026-01-14
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 5607)
Duration: 3:07, non-stop
Embraer EMB 175 (E75)
Direct Codeshare Flights:
SAS SK3581
19:15
Boston Logan (BOS) A

21:21
Chicago O'Hare (ORD) 5
Operates only on 2026-01-05
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 5858)
Duration: 3:06, non-stop
Embraer EMB 175 (E75)
Direct Codeshare Flights:
SAS SK3581
19:40
Boston Logan (BOS) A

21:40
Chicago O'Hare (ORD) 5
Valid until 2026-01-04
Mon
Tue
-
Wed
-
Thu
-
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 5596)
Duration: 3:00, non-stop
Embraer EMB 175 (E75)
Direct Codeshare Flights:
SAS SK3581
19:45
Boston Logan (BOS) A

21:48
Chicago O'Hare (ORD) 5
Effective 2026-02-12 through 2026-02-20
Mon
Tue
Wed
-
Thu
Fri
Sat
-
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 5858)
Duration: 3:03, non-stop
Embraer EMB 175 (E75)
Direct Codeshare Flights:
SAS SK3581
19:45
Boston Logan (BOS) A

21:48
Chicago O'Hare (ORD) 5
Effective 2026-02-22 through 2026-03-06
Mon
Tue
Wed
-
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 5858)
Duration: 3:03, non-stop
Embraer EMB 175 (E75)
Direct Codeshare Flights:
SAS SK3581
19:55
Boston Logan (BOS) A

22:01
Chicago O'Hare (ORD) 5
Effective 2026-01-06 through 2026-01-16
Mon
Tue
Wed
-
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 5858)
Duration: 3:06, non-stop
Embraer EMB 175 (E75)
Direct Codeshare Flights:
SAS SK3581
20:05
Boston Logan (BOS) A

22:01
Chicago O'Hare (ORD) 5
Effective 2026-03-08 through 2026-03-31
Mon
Tue
Wed
-
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 5858)
Duration: 2:56, non-stop
Embraer EMB 175 (E75)
Direct Codeshare Flights:
SAS SK3581
20:05
Boston Logan (BOS) A

22:01
Chicago O'Hare (ORD) 5
Effective 2026-04-01 through 2026-04-12
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 5858)
Duration: 2:56, non-stop
Embraer EMB 175 (E75)
Direct Codeshare Flights:
SAS SK3581
20:10
Boston Logan (BOS) A

22:06
Chicago O'Hare (ORD) 5
Effective 2026-04-13 through 2026-05-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 2804)
Duration: 2:56, non-stop
Airbus A220-100 (221)
Direct Codeshare Flights:
SAS SK3581
20:10
Boston Logan (BOS) A

22:06
Chicago O'Hare (ORD) 5
Effective 2026-05-07 through 2026-10-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 2804)
Duration: 2:56, non-stop
Airbus A319 (319)
Direct Codeshare Flights:
SAS SK3581
20:10
Boston Logan (BOS) A

22:04
Chicago O'Hare (ORD) 5
Effective 2026-10-06 through 2026-10-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 2804)
Duration: 2:54, non-stop
Airbus A319 (319)
Direct Codeshare Flights:
SAS SK3581
20:10
Boston Logan (BOS) A

22:06
Chicago O'Hare (ORD) 5
Effective from 2026-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 2804)
Duration: 2:56, non-stop
Airbus A220-300 (223)
Direct Codeshare Flights:
SAS SK3581
20:25
Boston Logan (BOS) A

22:29
Chicago O'Hare (ORD) 5
Effective 2026-01-20 through 2026-01-27
Mon
-
Tue
Wed
-
Thu
Fri
Sat
-
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 5858)
Duration: 3:04, non-stop
Embraer EMB 175 (E75)
Direct Codeshare Flights:
SAS SK3581
20:25
Boston Logan (BOS) A

22:29
Chicago O'Hare (ORD) 5
Effective 2026-01-30 through 2026-02-10
Mon
Tue
Wed
-
Thu
Fri
Sat
-
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 5858)
Duration: 3:04, non-stop
Embraer EMB 175 (E75)
Direct Codeshare Flights:
SAS SK3581
20:40
Boston Logan (BOS) A

22:44
Chicago O'Hare (ORD) 5
Effective 2026-01-25 through 2026-02-01
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 5858)
Duration: 3:04, non-stop
Embraer EMB 175 (E75)
  • SK 3581 is a domestic flight departing from the Boston Logan airport (BOS) and arriving at Chicago O'Hare airport (ORD).
  • The flight distance is 864 miles, or 1390 km.
  • The timezone of the departure airport is UTC-5 , and the timezone of the arrival airport is UTC-6 . Current time at the point of departure is (loading...), and (loading...) at the point of arrival. There is a (loading...) hour time difference between the airports.
  • For direct flights, the flight time varies between 2:54 and 3:13.
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