Your next trip, last seen at €100
Lowest observedFrontier Airlines · 3 stops · One wayWhen to fly
Explore datesMore dates worth a look
Find the dates that work for you
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
- €100, departing 14 Dec 2026 (Last checked: 23 Oct 2026)One-way fare · Priced departure days checked in the last 14 days: 87Check live prices for this route
- Airlines seen
- Air Canada, Alaska Airlines, Allegiant Air, Frontier Airlines, Porter Airlines Canada, United Airlines, WestJet (7)
- Typical journey time
- 19h 47m
About this route
Explore the fares we observed from Boise to Cincinnati. Prices move often, so pick your dates to see the latest options.
- Route distance
- 2,675 km
- Typical journey time
- 19h 47m
- Seen on fares with a connection
- Alaska Airlines, Frontier Airlines, United Airlines, Allegiant Air, WestJet, Porter Airlines Canada
- Alternative airports
- LUK
Route-level information; individual journeys vary.
We have not observed non-stop service on this route; the fares shown include at least one stop.
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.
- Cincinnati Municipal Airport Lunken Field (LUK) → Cincinnati, city gazetteer reference point (39.1031, -84.5120): ≈ 8 km.
- Cincinnati Northern Kentucky International Airport (CVG) → Cincinnati, city gazetteer reference point (39.1031, -84.5120): ≈ 15 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 fare by departure month
Cheapest month from Boise to Cincinnati: December 2026, from €100 (checked 23 Oct 2026).
| Month | Lowest fare | Priced days |
|---|---|---|
| October 2026 | €205 | 3 |
| November 2026 | €123 | 30 |
| December 2026 | €100 | 31 |
| January 2027 | €119 | 23 |
Lowest fare by day of the week
Cheapest day of the week from Boise to Cincinnati: Monday, from €100 (checked 23 Oct 2026).
| Day | Lowest fare | Priced days |
|---|---|---|
| Monday | €100 | 12 |
| Tuesday | €123 | 12 |
| Wednesday | €123 | 12 |
| Thursday | €123 | 13 |
| Friday | €119 | 13 |
| Saturday | €123 | 13 |
| Sunday | €159 | 12 |
One-way fares checked in the last 14 days. Each figure is the lowest priced departure day we saw, not a guaranteed fare.
Lowest fare by days before departure
Lowest fare from Boise to Cincinnati by days until departure (31 to 60 days): €100 (checked 23 Oct 2026).
| Days before departure | Lowest fare | Priced days |
|---|---|---|
| 0 to 7 days | €205 | 8 |
| 8 to 30 days | €123 | 23 |
| 31 to 60 days | €100 | 30 |
| 61 days or more | €119 | 26 |
One-way fares checked in the last 14 days. Each figure is the lowest stored fare for that distance to departure, not a price forecast.
Fares for different departure dates, checked now; not a guide to when to book.
Lowest one-way fare we saw per airline
Cheapest airline from Boise to Cincinnati: Frontier Airlines, from €100 (checked 23 Oct 2026).
| Airline | Lowest fare | Priced days |
|---|---|---|
| Frontier Airlines | €100Dec 14, 2026 | 24 |
| Alaska Airlines | €123Nov 9, 2026 | 48 |
| Allegiant Air | €205Oct 30, 2026 | 6 |
| United Airlines | €210Dec 18, 2026 | 4 |
| WestJet | €348Jan 23, 2027 | 3 |
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 Cincinnati?
The lowest fare Routavio has observed is €100, found on 23 Oct 2026. Prices move, so read it as a floor rather than a quote.
When is the cheapest month to fly from Boise to Cincinnati?
Cheapest month from Boise to Cincinnati: December 2026, from €100 (checked 23 Oct 2026).
Are there direct flights from Boise to Cincinnati?
Our data holds no non-stop flight from Boise to Cincinnati. The fares on this page include at least one stop.
Which airlines fly from Boise to Cincinnati?
Routavio has seen these carriers on the route: Air Canada, Alaska Airlines, Allegiant Air, Frontier Airlines, Porter Airlines Canada, United Airlines, WestJet (7).
How long does the flight from Boise to Cincinnati take?
Across the 93 fares Routavio observed, the average journey time is 20h, including any stops. Individual departures vary; the fastest observed flight is listed in the route facts above.
How many of the observed Boise to Cincinnati fares were non-stop?
None of the 94 fares we observed was non-stop; every one included at least one stop. That describes our observations, not every flight that operates.
Which day of the week is cheapest from Boise to Cincinnati?
Cheapest day of the week from Boise to Cincinnati: Monday, from €100 (checked 23 Oct 2026).
Which airline has the lowest fare from Boise to Cincinnati?
Cheapest airline from Boise to Cincinnati: Frontier Airlines, from €100 (checked 23 Oct 2026).
How observed prices work, what "No data" means and what a fare includes: Read the flight price guide
Keep exploring
Similar routes
More routes from Boise
Show all 30 routes →Show fewer ↑
More routes to Cincinnati
Show all 30 routes →Show fewer ↑
Recently observed fares. Prices may change.
Last checked: 23 Oct 2026