Chicago to Knoxville flights
Routavio compares airline fares from several flight booking sites. The lowest one-way fare it found for Chicago to Knoxville is €42 with Allegiant Air (checked on 22 Oct 2026).
Your next trip, last seen at €42
Lowest observedAllegiant Air · Non-stop · 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
- €42, departing 9 Nov 2026 (Last checked: 22 Oct 2026)One-way fare · Priced departure days checked in the last 14 days: 11Check live prices for this route
- Round trip
- €153, departing 16 Nov 2026, back 14 Dec 2026 (Last checked: 29 Oct 2026)
- Non-stop, one way
- €42, departing 9 Nov 2026 (Last checked: 22 Oct 2026)
- Airlines seen
- American Airlines, Allegiant Air, United Airlines, Delta Air Lines, Frontier Airlines, JetBlue
- Reported fastest flight
- 1h 25m
- Non-stop
- Yes
About this route
Explore the fares we observed from Chicago to Knoxville. Prices move often, so pick your dates to see the latest options.
- Route distance
- 732 km
- Reported fastest flight
- 1h 25m
- Alternative airports
- CGX, DPA, MDW, PWK, RFD
Route-level information; individual journeys vary.
Published schedules report non-stop service with American Airlines, Allegiant Air, United Airlines. Check current timetables.
A clearer picture of your fare
If the observed fare for this date drops, we will email you. At most one message a day.
Non-stop airlines seen on this route
| Airline | Non-stop days / priced days | Fastest non-stop |
|---|---|---|
| United Airlines | 20 / 81 | |
| Allegiant Air | 7 / 81 |
Departure days with a non-stop fare checked in the last 14 days. A carrier listed here had a non-stop fare on at least 3 days; schedules may differ.
Airport to city: straight-line distance
- 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.
- McGhee Tyson Airport (TYS) → Knoxville, city gazetteer reference point (35.9606, -83.9207): ≈ 18 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
| Month | Lowest fare | Priced days |
|---|---|---|
| November 2026 | €147 | 5 |
| December 2026 | €142 | 4 |
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 Chicago to Knoxville by days until departure (31 to 60 days): €142 (checked 29 Oct 2026).
| Days before departure | Lowest fare | Priced days |
|---|---|---|
| 0 to 7 days | €147 | 5 |
| 31 to 60 days | €142 | 5 |
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 Chicago to Knoxville: Allegiant Air, from €42 (checked 22 Oct 2026).
| Airline | Lowest fare | Priced days |
|---|---|---|
| Allegiant Air | €42Nov 9, 2026 | 19 |
| Frontier Airlines | €62Dec 10, 2026 | 31 |
| JetBlue | €116Jan 6, 2027 | 6 |
| United Airlines | €156Jan 16, 2027 | 25 |
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 Chicago to Knoxville?
The lowest fare Routavio has observed is €42, found on 22 Oct 2026. Prices move, so read it as a floor rather than a quote.
When is the cheapest month to fly from Chicago to Knoxville?
In our observations November 2026 is the cheapest month so far, at €42.
Are there direct flights from Chicago to Knoxville?
Yes. Published schedules report non-stop flights on this route with American Airlines, Allegiant Air, United Airlines.
Which airlines fly from Chicago to Knoxville?
Routavio has seen these carriers on the route: American Airlines, Allegiant Air, United Airlines, Delta Air Lines, Frontier Airlines, JetBlue.
How long does the flight from Chicago to Knoxville take?
Across the 69 fares Routavio observed, the average journey time is 14h 22m, including any stops. Individual departures vary; the fastest observed flight is listed in the route facts above.
How many of the observed Chicago to Knoxville fares were non-stop?
30 of the 82 fares we observed were non-stop; the rest included at least one stop. That describes our observations, not every flight that operates.
How much is a round trip from Chicago to Knoxville?
Cheapest round trip: €153, departing 16 Nov 2026, back 14 Dec 2026 (checked 29 Oct 2026).
How much is a non-stop flight from Chicago to Knoxville?
Cheapest non-stop one-way fare: €42, departing 9 Nov 2026 (checked 22 Oct 2026).
Which airlines had non-stop offers on at least 3 departure dates from Chicago to Knoxville?
For Chicago to Knoxville, examples of observed one-way non-stop offers checked within the last 14 days: United Airlines (20), Allegiant Air (7). Each number counts distinct departure dates, not weekly flights; check current availability in search.
Which airline has the lowest fare from Chicago to Knoxville?
Cheapest airline from Chicago to Knoxville: Allegiant Air, from €42 (checked 22 Oct 2026).
How observed prices work, what "No data" means and what a fare includes: Read the flight price guide · Price and schedule freshness on Routavio
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Recently observed fares. Prices may change.