The nonstop is quickest: Southwest MDW → BOI (3h 35m), on time 7 times in 10. Southwest via Denver (5h 30m) is more reliable, 88%, but takes 1h 55m longer.
Nonstops (seasonal or thin)
Nonstop details →| Southwest | MDW | BOI | 3h 35m | 71% | 2.3% | 87 | Flying now |
Best connections, one ticket
Ranked by chance you reach Boise on time. Total trip = scheduled departure to arrival, layover included (Boise is 1 h behind Chicago). Layovers up to 4 hours. Pick a connection for the details.
| SouthwestDetails → | MDW 05:20 → PHX 06:55WN 2858 | 1h 45m Phoenix | PHX 08:40 → BOI 11:45WN 4601 | 7h 25m | 97% | 91% |
| SouthwestDetails → | MDW 05:15 → DEN 06:50WN 2989 | 55m Denver | DEN 07:45 → BOI 09:45WN 818 | 5h 30m | 98% | 88% |
| DeltaDetails → | MDW 06:00 → ATL 08:55DL 1285 | 1h 35m Atlanta | ATL 10:30 → BOI 12:54DL 874 | 7h 54m | 94% | 81% |
| DeltaDetails → | MDW 12:50 → ATL 15:49DL 2417 | 3h 41m Atlanta | ATL 19:30 → BOI 21:57DL 704 | 10h 07m | 98% | 60% |
| SouthwestDetails → | MDW 10:05 → BUR 12:25WN 2741 | 3h 30m Burbank | BUR 15:55 → BOI 18:45WN 776 | 9h 40m | 100% | 54% |
| SouthwestDetails → | MDW 16:55 → LAS 18:45WN 2797 | 3h 00m Las Vegas | LAS 21:45 → BOI 00:28 +1WN 2194 | 8h 30m | 96% | 52% |
| SouthwestDetails → | MDW 18:35 → PHX 20:15WN 2862 | 2h 30m Phoenix | PHX 22:45 → BOI 01:48 +1WN 2554 | 8h 12m | 96% | 52% |
| SouthwestDetails → | MDW 09:55 → DEN 11:30WN 2654 | 1h 20m Denver | DEN 12:50 → BOI 14:45WN 1491 | 5h 50m | 84% | 50% |
| Tight connection: often missed | ||||||
| SouthwestDetails → | MDW 10:05 → OAK 12:35WN 3366 | 55m Oakland | OAK 13:30 → BOI 16:00WN 803 | 6h 55m | 70% | 57% |
| SouthwestDetails → | MDW 05:52 → SAN 08:00WN 3103 | 48m San Diego | SAN 08:48 → BOI 11:58WN 4873 | 7h 06m | 70% | 53% |
| DeltaDetails → | MDW 19:06 → MSP 20:51DL 4713 · flown by Endeavor | 49m Minneapolis | MSP 21:40 → BOI 23:46DL 2488 | 5h 41m | 52% | 38% |
Same layover, different day-part
How often the first flight arrives too late to connect (45 min minimum), for one-ticket layovers of 45–80 minutes.
Delays build through the day, so an afternoon first leg eats the layover. A short connection is fine early in the morning and a gamble later on.
Mixing airlines
| Southwest WN 2809 MDW 10:05 → PDX Alaska AS 342 PDX 14:58 → BOI Connection details → |
2h 33m | 8h 11m | 100% | 87% |
| Southwest WN 1243 MDW 07:40 → MSP Delta DL 2982 MSP 11:39 → BOI Connection details → |
2h 29m | 7h 11m | 100% | 85% |
| Southwest WN 3016 MDW 08:40 → PHX American AA 4934 PHX 13:54 → BOI Connection details → |
3h 34m | 9h 29m | 100% | 85% |
Rank all connections, any airlines →
Regional partners count as the airline that sells them: SkyWest flying Delta Connection is one Delta ticket.
About this data: US DOT on-time records, Aug 2025 – Jul 2026, all US airlines; regional flights count under the airline that sells them. Schedules (which flights and connections exist, and their times) are as of Jun 6 – Jul 31, 2026; seasonal flights outside that window aren’t ranked. Rebuilt monthly. JSON