Your next trip, last seen at €106
Lowest observedFrontier Airlines · 1 stop · One wayWhen to fly
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The lowest fare we observed for each month. Open a month to see its days, then pick your outbound and return. A day with no price is one we will search for you.
One-way fare
- Lowest observed
- €106, departing 21 Nov 2026 (Last checked: 20 Oct 2026)One-way fareCheck live prices for this route
- Airlines seen
- United Airlines, Alaska Airlines, American Airlines, Delta Air Lines, Frontier Airlines, Southwest Airlines
- Reported fastest flight
- 3h 31m
- Non-stop
- Yes
About this route
Explore the fares we observed from Boise to Chicago. Prices move often, so pick your dates to see the latest options.
- Route distance
- 2,330 km
- Reported fastest flight
- 3h 31m
- Alternative airports
- CGX, DPA, MDW, PWK, RFD
Route-level information; individual journeys vary.
Published schedules report non-stop service with United Airlines. Check current timetables.
A clearer picture of your fare
Airport to city: straight-line distance
- Boise Air Terminal/Gowen Field (BOI) → Boise, city gazetteer reference point (43.6150, -116.2023): ≈ 6 km.
- Chicago Midway International Airport (MDW) → Chicago, city gazetteer reference point (41.8781, -87.6298): ≈ 14 km.
- Chicago O'Hare International Airport (ORD) → Chicago, city gazetteer reference point (41.8781, -87.6298): ≈ 25 km.
- Chicago Rockford International Airport (RFD) → Chicago, city gazetteer reference point (41.8781, -87.6298): ≈ 126 km.
Approximate distances calculated from coordinates, not road distances or travel times. These airports serve the city; they are not confirmed endpoints of an offer.
Lowest one-way fare we saw per airline
Cheapest airline from Boise to Chicago: Frontier Airlines, from €106 (checked 20 Oct 2026).
| Airline | Lowest fare | Priced days |
|---|---|---|
| Frontier Airlines | €106Nov 21, 2026 | 26 |
| Alaska Airlines | €158Jan 6, 2027 | 56 |
One-way fares checked in the last 14 days. An airline listed here had a fare on at least 3 departure days. Each figure is the lowest we saw, not a guaranteed fare. Connecting itineraries are included; the date is the departure day of that fare.
Frequently asked
How much is a flight from Boise to Chicago?
The lowest fare Routavio has observed is €106, found on 20 Oct 2026. Prices move, so read it as a floor rather than a quote.
When is the cheapest month to fly from Boise to Chicago?
In our observations November 2026 is the cheapest month so far, at €106.
Are there direct flights from Boise to Chicago?
Yes. Published schedules report non-stop flights on this route with United Airlines.
Which airlines fly from Boise to Chicago?
Routavio has seen these carriers on the route: United Airlines, Alaska Airlines, American Airlines, Delta Air Lines, Frontier Airlines, Southwest Airlines.
How long does the flight from Boise to Chicago take?
Across the 88 fares Routavio observed, the average journey time is 9h 35m, including any stops. Individual departures vary; the fastest observed flight is listed in the route facts above.
How many of the observed Boise to Chicago fares were non-stop?
1 of the 88 fares we observed were non-stop; the rest included at least one stop. That describes our observations, not every flight that operates.
Which airline has the lowest fare from Boise to Chicago?
Cheapest airline from Boise to Chicago: Frontier Airlines, from €106 (checked 20 Oct 2026).
How observed prices work, what "No data" means and what a fare includes: Read the flight price guide
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Recently observed fares. Prices may change.
Last checked: 27 Oct 2026